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Etching

Etching is an intaglio printmaking process in which lines or areas are incised using acid into a metal plate, typically copper, iron, or zinc, to create recessed areas that hold ink for printing.^[1] The technique allows artists to produce fluid, expressive lines ranging from delicate and serpentine to bold and scratchy, enabling nuanced tonal effects and detailed imagery in multiples.^[2] Originating from 14th-century methods of decorating armor with acid-resistant resists, etching was adapted for artistic printmaking around 1500 in southern Germany, where early practitioners used iron plates despite their tendency to rust.^[3]^[4] The process begins with polishing the metal plate to a smooth surface, followed by coating it with an acid-resistant ground such as wax or varnish.^[1] The artist then uses an etching needle to scratch away the ground, exposing the metal along the desired lines of the design.^[1] The plate is immersed in acid (mordant), which bites into the exposed areas; the depth and width of the lines depend on the duration of exposure, with longer times producing deeper recesses for richer ink retention.^[1] After etching, the ground is removed with solvent, the plate is inked—filling the incised lines while wiping the surface clean—and passed through a rolling press with damp paper to transfer the ink, resulting in a print with a distinctive plate mark.^[1] Variations like soft-ground etching, which captures textures by pressing paper or fabric into the ground, and aquatint, which uses powdered resin for tonal areas, expanded the medium's capabilities for shading and color.^[5] Etching flourished in the 16th and 17th centuries, with masters like Albrecht Dürer experimenting early and Rembrandt van Rijn producing around 300 etchings between 1626 and 1665, innovating with drypoint burrs and deep bites for dramatic textures and lighting effects.^[6] In the 19th century, an etching revival in Europe and America, led by artists such as James McNeill Whistler, emphasized its painterly qualities and spontaneity over mechanical precision.^[1] Today, etching remains a vital technique in fine art printmaking, valued for its versatility in creating both black-and-white and colored works, though modern adaptations often incorporate safer mordants and digital aids.^[7]

History

Ancient Origins

The niello technique, a precursor to later etching methods, involved mechanically incising designs into metal surfaces—such as silver, gold, or bronze—and filling the grooves with a black sulfide alloy composed of sulfur, copper, silver, and lead to create high-contrast decoration. This method originated in the Bronze Age Near East and ancient Egypt, with archaeological evidence dating to approximately 3000 BCE, where it was used to adorn jewelry, vessels, and ritual objects.^[8] In Egypt, niello appears on artifacts from the Old Kingdom (c. 2686–2181 BCE), including silver and gold items featuring intricate inlaid patterns that highlighted the dark alloy against the metal base.^[9] The practice spread to ancient Greece and Rome, where niello enhanced bronze statuettes, armor components, and tableware from the 8th century BCE onward. Greek artisans applied it to inlay geometric and figural motifs on bronze vessels and weapons, while Roman metalworkers extended its use to silver plates and jewelry, often combining it with gilding for luxurious effects. Notable examples include inlaid bronze attachments from Greek sanctuaries and Roman sword fittings, demonstrating the technique's role in achieving fine detailing without modern acids.^[10] These mechanical approaches, distinct from later chemical etching, laid groundwork for incising skills that influenced printmaking techniques. Nitric acid, first isolated by the Islamic alchemist Jabir ibn Hayyan around 800 CE, was used in alchemical processes for metal purification and dissolution, representing an early advancement in chemical treatments of metals.^[11]

Early Modern Developments

Etching emerged as a distinct printmaking technique in Renaissance Europe during the early 16th century, primarily through the innovations of German artists adapting methods from metalworking. Daniel Hopfer, an armorer based in Augsburg, is credited with introducing etching to print production around 1510–1515. He transferred the process used for decorating armor—applying a resist ground to iron plates and exposing them to nitric acid—to create flat prints, producing ornamental designs, figures, and biblical scenes that marked the first known etched prints.^[12]^[5] The technique quickly gained traction among German artists in the 1520s, with Albrecht Dürer adopting it for a small body of work. Between 1515 and 1520, Dürer created six etchings on iron plates, including landscapes like The Cannon (1518) and The Great Horse (1515), which demonstrated etching's potential for loose, expressive lines but highlighted its coarseness compared to engraving.^[13] Other early adopters, such as Urs Graf, produced dated etchings as early as 1513, focusing on genre scenes and portraits that showcased the medium's spontaneity. Hopfer's own iron etchings, numbering over 100, often featured intricate ironwork motifs adapted from his armor designs, influencing the style's ornamental quality.^[14] By the mid-16th century, etching spread to Italy and France, where artists refined its application on copper plates for greater durability and precision. In Italy, Parmigianino (Francesco Mazzola) became the pioneering etcher around 1527–1530, producing approximately 18 works such as The Entombment (c. 1525–1530), which exploited etching's fluid lines to capture Mannerist elegance.^[15] In France, the technique arrived via Italian expatriates at the Fontainebleau school, with Antonio Fantuzzi creating decorative etchings in the 1540s; Jacques Callot began his early etched works around 1610, initially employing basic acid-biting methods on copper before developing advanced tonal effects.^[16] Early etching faced significant technical challenges due to rudimentary materials and methods, limiting its reliability. Primitive grounds, typically mixtures of pitch, beeswax, and oils, often cracked or adhered unevenly, causing irregular acid biting that produced fuzzy or unintended lines in the prints. Moreover, the use of iron plates led to rapid corrosion during printing, restricting runs to roughly 50–100 impressions before the plate degraded, necessitating a shift to copper for longer editions.^[17]^[14]

Key Technical Innovations

In the early 17th century, French printmaker Jacques Callot (1592–1635) introduced several key innovations that enhanced the precision and versatility of etching, building on the technique's adoption by early modern pioneers like Daniel Hopfer. Around 1610–1620, while working in Florence and Rome, Callot developed the échoppe, a specialized etching needle with an oval or lozenge-shaped tip resembling a burin, which allowed artists to create lines of varying thickness and subtle swells similar to those in engraving. He also refined the hard ground by mixing wax with resin, producing a more durable and transparent resist that facilitated intricate designs without cracking under repeated needle work. Additionally, Callot pioneered the stopping-out technique, applying varnish to areas of the plate after initial acid bites to protect them from further etching, enabling progressive deepening of lines and the achievement of tonal gradations through multiple immersions in acid. These advancements, detailed in contemporary accounts of his workshop practices, significantly expanded etching's expressive potential beyond simple line work.^[18] During the mid-17th century, Rembrandt van Rijn (1606–1669) elevated etching through his masterful integration of drypoint with traditional etching methods, particularly in the 1630s–1660s. In works such as Christ Healing the Sick (commonly known as The Hundred Guilder Print, ca. 1647–1649), Rembrandt combined etched lines bitten by acid with drypoint burrs—raised metal edges created by scratching the plate directly—to produce rich, velvety textures and deep shadows that captured dramatic light effects and human expression. This hybrid approach, executed on copper plates, allowed for softer, more organic forms and tonal depth unattainable with etching alone, influencing subsequent generations of printmakers. The plate's complexity, involving up to nine states of revision, demonstrated Rembrandt's innovative control over the medium, as analyzed in technical examinations of his prints. A major breakthrough in tonal etching occurred in 1760 with the development of aquatint by French artist Jean-Baptiste Le Prince (1734–1781), who dusted finely powdered resin onto the plate to create a porous ground that, when etched, produced even areas of tone resembling watercolor washes. This method addressed etching's limitation to linear marks by allowing broad shaded passages, achieved through selective stopping-out and varying bite depths in diluted acid baths. Le Prince's innovation, initially kept secret but disseminated through his prints and teachings, rapidly gained popularity for landscape and genre scenes, marking a shift toward painterly effects in printmaking.^[19] By the 18th century, etchers further refined acid usage to achieve greater depth and consistency, increasingly employing dilutions of nitric acid—typically one part acid to several parts water—to control the bite rate and minimize undercutting of lines. Longer immersion times in these milder solutions enabled deeper incisions on copper plates, extending their durability for larger editions while reducing the risk of foul biting, where acid penetrated unintended areas. These adjustments, documented in period treatises on print techniques, supported the era's growing demand for detailed reproductive prints and fine art etchings.^[20]

Printmaking Fundamentals

Basic Process Overview

The basic process of etching in traditional printmaking is an intaglio technique that uses acid to incise designs into a metal plate, creating recessed lines that hold ink for printing. This workflow focuses on preparing the plate, exposing areas for corrosion, and controlling the acid's action to form grooves, providing the foundation for artistic expression through line work. The process begins with degreasing the metal plate, usually copper or zinc, to remove oils and contaminants that could prevent proper adhesion of the protective ground; this is typically done using a paste of whiting (calcium carbonate) and water or a mild scouring powder scrubbed onto the surface, followed by thorough rinsing.^[21] Next, an acid-resistant ground, such as a waxy or resinous substance, is applied evenly across the plate to protect it from the mordant during etching.^[22] The artist then draws the desired design directly on the grounded plate using a fine etching needle, which scratches through the ground to expose the underlying metal without damaging the plate itself.^[23] The plate is immersed in a mordant bath, commonly a diluted nitric acid solution, where the acid selectively corrodes the exposed metal lines; the biting time is controlled in stages of 10-30 minutes to achieve varying depths, with the plate periodically removed, rinsed, and inspected to monitor progress and prevent over-etching. After sufficient biting, the ground is removed using a solvent like turpentine, the plate is cleaned to eliminate acid residues, and the resulting grooves are inspected for uniformity and depth.^[23] At its core, the etching reaction involves the oxidation of the metal by the acid, dissolving the exposed surface to form soluble compounds and release gases; for copper in dilute nitric acid, this can be represented as 3Cu + 8HNO₃ → 3Cu(NO₃)₂ + 2NO + 4H₂O, where the acid oxidizes the copper while producing byproducts that aid in the etching process.^[24]

Materials and Plate Preparation

In traditional etching, metal plates serve as the foundational surface for creating intaglio prints. Copper plates are preferred for their softness, which allows for the creation of fine, detailed lines, and they are commonly available in sizes up to 12 by 16 inches.^[1]^[25] Zinc plates offer a more affordable alternative but produce coarser lines due to the metal's harder texture.^[1] Iron plates, while durable and suitable for repeated use, can result in uneven etching because of their rougher surface.^[1] Before applying any etching ground, the plate must undergo thorough preparation to ensure a clean, even surface. This begins with polishing to remove scratches and imperfections: the edges are beveled using a metal file, followed by sanding with progressively finer grits (from #220 to #600) in circular motions, and finishing with #0000 steel wool or a polishing compound like putz pomade applied with felt for a mirror-like finish.^[26] Degreasing follows to eliminate oils and residues that could cause the ground to adhere unevenly; this is achieved by scrubbing the plate with a paste of whiting (calcium carbonate) and water using a felt pad, rinsing thoroughly, and optionally applying a mild de-oxidizing solution or vinegar-based mix before a final whiting scrub, ensuring water sheets off the surface without beading.^[26]^[27]^[28] Etching grounds, which protect areas of the plate from the mordant, are applied immediately after preparation. Soft grounds, ideal for capturing textures, consist of a mixture of beeswax softened with tallow or petroleum jelly, providing a pliable surface that can be impressed with materials like paper or fabric.^[29] These are typically applied by rolling the warmed mixture onto the heated plate using a brayer (similar to a rolling pin) for even coverage, or in liquid form via spray for hard grounds, though soft grounds are often brushed or rolled to maintain their tackiness.^[30]^[31] Mordants, the etching solutions that bite into exposed metal, vary by plate type. For copper plates, ferric chloride is the traditional and preferred mordant due to its relative safety and effectiveness in creating consistent depths.^[31] For zinc plates, nitric acid is commonly used, typically diluted at a 1:5 ratio with water to control the etching rate and produce finer lines.^[32] Handling mordants requires strict safety protocols to mitigate risks from fumes and spills. Work must be conducted in a fume hood to ventilate toxic vapors, with protective gloves, goggles, and aprons worn at all times; spent mordant solutions are neutralized by adding baking soda (sodium bicarbonate) until the pH reaches neutral before disposal.^[31]^[33]

Artistic Techniques

Line Etching and Grounds

Line etching is a foundational technique in intaglio printmaking, where artists draw precise lines through an acid-resistant ground on a metal plate, typically copper or zinc, to expose areas for selective corrosion by a mordant such as nitric acid. This method allows for clean, controlled incisions that mimic the fluidity of drawing, producing sharp, varied lines in the final print. The protective ground ensures that only the drawn areas are etched, enabling artists to achieve intricate details and tonal variations through line depth and width.^[1] The application of hard ground, a traditional mixture of beeswax and asphaltum, is critical for line etching as it provides a durable, waxy barrier that can be incised without cracking. To apply it, the metal plate is first degreased and then heated on a hot plate to approximately 100-120°C to melt the ground evenly. The wax-asphaltum composition is rolled onto the warmed plate using a hard rubber roller until a thin, uniform layer forms, achieving a golden tone indicative of proper coverage. The plate is then removed from the heat and allowed to cool completely, hardening the ground to a state suitable for drawing with an etching needle. This process, dating back to the 17th century, ensures the ground adheres firmly while permitting fine scratches that expose the metal beneath.^[7]^[34] Once the design is drawn, the plate undergoes etching in multiple short dips of 5-10 minutes each to achieve uniform line depths and prevent undercutting, where acid erodes the sides of lines unevenly. After each dip, the plate is rinsed, inked lightly, and proofed on paper to test the bite depth and line clarity, allowing adjustments before further immersion. To vary depths for tonal contrast, stopping-out is employed: a protective varnish is painted over areas that have reached the desired depth, shielding them from additional acid exposure during subsequent bites. This iterative process builds cumulative etching, with deeper lines holding more ink for richer prints.^[35]^[36] For enhancing line variation mid-process, the échoppe—a tapered etching needle with an oval tip—serves as a specialized tool, allowing artists to widen or swell lines by applying varying pressure while drawing through the ground. Unlike a standard needle, the échoppe's slanted profile creates broader, engraving-like tapers, adding expressiveness to linear forms without additional etching steps. Pioneered effectively by Jacques Callot in the early 17th century, this tool bridges etching and engraving techniques, enabling dynamic line modulation directly on the plate.^[37]

Tonal and Textural Methods

Aquatint is an intaglio printmaking technique developed to achieve tonal effects in etching, allowing artists to create areas of uniform shade rather than isolated lines. The process begins with dusting a metal plate, typically copper or zinc, with fine rosin powder, which is then fused to the surface by gently heating the plate to make the particles adhere without melting completely into a solid layer.^[38] This creates a porous resist composed of tiny, irregularly spaced dots that protect most of the plate while exposing minute gaps to the acid. The artist draws through the rosin using a needle or etching tool to remove the powder in desired areas, defining highlights or shapes, before immersing the plate in an acid bath.^[39] The acid bites into the unprotected metal, forming a network of fine, interconnected channels that hold ink and print as a soft, velvety tone resembling watercolor washes.^[40] To build graduated tones from light to dark, the aquatint process is iterative: after the initial bite produces a light tone, the artist stops out (applies additional resist) to protected areas, then repeats the acid immersion for deeper etching in the remaining exposed sections.^[41] This stepwise method allows for precise control over tonal range, with multiple short acid dips preventing over-etching and maintaining evenness across large areas.^[38] The resulting prints exhibit a granular texture that enhances depth and atmosphere, making aquatint particularly suited for landscapes, portraits, and dramatic scenes requiring subtle gradations.^[42] Soft ground etching complements aquatint by introducing textured effects through a more pliable resist, enabling the capture of organic or patterned impressions directly onto the plate. The soft ground, a mixture of standard etching varnish softened with tallow, beeswax, or grease, is applied evenly to the warmed plate and allowed to cool into a tacky layer.^[43] Textured materials such as lace, fabric, leaves, or paper are then pressed into the ground under moderate pressure, often using a rolling press, causing the soft resist to adhere to and lift from the metal in the pattern of the material, exposing those areas to acid.^[44] After removing the textured object, the plate is etched in acid, with the depth of bite controlled by immersion time to produce varied line widths and surface textures that translate to rich, tactile prints.^[23] This method excels in replicating natural forms or fabrics, adding dimensionality beyond flat tones. A notable historical application of aquatint appears in Francisco Goya's series The Disasters of War (1810–1820), where the artist combined etching lines with aquatint tones to depict the horrors of the Peninsular War, achieving haunting contrasts of light and shadow in scenes of violence and suffering.^[45] Goya's innovative use of progressive stopping-out created dramatic mid-tones that heightened the emotional impact, influencing later printmakers in expressive tonal rendering.^[46] Variations on traditional rosin aquatint include sugar aquatint, or sugar lift, which offers finer control for intricate tonal areas by incorporating a soluble ground. In this technique, a mixture of sugar syrup and India ink or gum arabic is painted or drawn onto the plate over a hard ground, then allowed to dry before the entire surface is coated with a standard resist.^[47] Submerging the plate in water dissolves the sugar, lifting the overlying resist to expose the drawn areas precisely, which are then etched to form clean, variable tones without the granularity of rosin.^[47] This method allows for painterly effects and is valued for its precision in modern printmaking workshops.^[41]

Additive and Lift Techniques

Additive and lift techniques in etching expand the medium's expressive range by selectively removing or weakening the resist ground to reveal organic, painterly effects that contrast with the precision of line etching. These methods allow artists to create broad tonal areas and soft-edged forms by manipulating the resist during or after the initial drawing phase, often integrating seamlessly with other intaglio processes like aquatint for enhanced texture.^[48] Sugar lift, also known as lift-ground, involves drawing directly on a plate covered with an acid-resistant ground using a water-soluble mixture of India ink and sugar syrup, which adheres to the resist without penetrating it. After the drawing dries, the plate is submerged in water, dissolving the sugar and lifting away sections of the ground to expose underlying metal for etching, resulting in irregular, broad areas of tone that mimic brushstrokes. This technique, developed in the 19th century, enables spontaneous, fluid compositions and is particularly valued for its ability to produce velvety blacks and subtle gradients without the uniformity of traditional aquatint.^[41]^[48] Spit bite offers a direct method for achieving soft, diffused edges by applying a diluted acid solution—often mixed with saliva, water, or gum arabic—straight onto the plate's ground using a brush or splash. The moisture weakens the resist locally, allowing the acid to bite unevenly and create feathery, atmospheric effects that evoke watercolor or smoke. Popularized in the 20th century, this approach bypasses immersion in acid baths, granting artists precise control over localized etching depths and integrating well with aquatint grounds for layered tonality.^[49]^[50] Drypoint integration enhances etched plates post-acid biting by scratching fine lines into the metal surface with a sharp needle, raising a soft burr that holds ink for rich, velvety lines in printing. This additive step, often combined with lift techniques, adds tactile depth and immediacy, as the burr's subtle swelling creates tonal variations without further chemical intervention. Artists like Rembrandt employed this hybrid method in the 17th century to blend etched precision with drypoint's expressive richness, a practice that persists in modern printmaking.^[51] Pablo Picasso exemplified these techniques in his 1930s etchings, such as those from the Suite Vollard, where sugar lift and spit bite produced painterly qualities with fluid forms and atmospheric depth, expanding etching's traditional linearity into sculptural, Cubist-inspired compositions. Introduced to these methods by printer Roger Lacourière around 1930–1937, Picasso used them to achieve tonal variations that blurred the boundaries between drawing and painting.^[52]^[53]

Modern Variants

Photo-Etching

Photo-etching integrates photographic techniques into the intaglio etching process to achieve precise and reproducible image transfer onto metal plates. The method relies on light-sensitive materials that allow photographic positives or negatives to control the etching pattern, enabling fine details and tonal variations unattainable through manual drawing alone. Developed as a bridge between photography and printmaking, it has been particularly valued for its ability to reproduce complex images with mechanical accuracy. The historical roots of photo-etching trace back to early 19th-century innovations in photomechanical reproduction. In 1839, Scottish inventor Mungo Ponton discovered the light-sensitive properties of potassium bichromate, a compound that hardens when exposed to light and became foundational for creating resist layers in etching processes. Building on earlier experiments, such as Joseph Nicéphore Niépce's 1820s work with sensitized pewter plates for photomechanical etching, the technique evolved through the mid-19th century with patents like Hippolyte Fizeau's 1843 method for etching daguerreotypes. It gained widespread popularity in the 20th century, especially after the introduction of photopolymer films in the 1970s and 1980s, which simplified the process for commercial reproduction in book illustrations and fine art prints. In the modern process, a metal plate, typically copper or zinc, is coated with a photopolymer film or a bichromate-sensitized ground in a subdued light environment to prevent premature exposure. A high-contrast photographic transparency—either a positive for line work or a negative for tonal images—is placed in direct contact with the coated plate and exposed to ultraviolet (UV) light from an exposure unit. The UV light polymerizes the exposed areas, rendering them insoluble and resistant to etching, while unexposed regions remain soft and developable. The plate is then immersed in an aqueous developer, such as sodium carbonate solution, which washes away the unhardened material, exposing the underlying metal in the image areas. Finally, the plate undergoes etching in a mordant bath, like ferric chloride, where the etchant bites into the exposed metal to form incised lines and tones proportional to the original image density. This step-by-step transfer ensures the etched plate mirrors the photographic source with exceptional fidelity. Key advantages of photo-etching include its capacity for high-resolution detail, particularly in rendering halftones and subtle gradations, which traditional line etching struggles to achieve. This precision made it ideal for commercial applications, such as reproducing illustrations in books and periodicals, where multiple identical prints were needed without loss of quality. Unlike manual techniques, photo-etching minimizes artist intervention in image creation, democratizing complex reproductions while preserving the tactile depth of intaglio printing. Essential equipment for photo-etching includes UV exposure units, often vacuum frames to maintain tight contact between the film and plate for sharp edges, and aqueous developers for non-toxic processing. These tools, combined with readily available photopolymer films like ImagOn introduced in the 1980s, have made the technique accessible to contemporary artists and printers.

Non-Toxic and Sustainable Methods

Traditional etching processes often rely on hazardous acids like nitric acid, which release toxic fumes and pose significant health risks to artists. In contrast, ferric chloride has emerged as a safer alternative mordant for etching copper and zinc plates, producing no harmful gas emissions while effectively biting into the metal at a controlled rate. This method, when paired with dry film or acrylic resists, eliminates the need for solvent-based grounds, further reducing exposure to volatile organic compounds (VOCs).^[31]^[7] Another innovative approach is the Edinburgh Etch, a metal salt system utilizing ferric chloride and citric acid to etch copper, brass, and mild steel without generating fumes or requiring aggressive ventilation. This solution maintains a neutral pH and allows for precise control over etch depth, making it suitable for both fine art and experimental printmaking. Dry film resists can also be applied here to create detailed line work, enhancing safety by avoiding traditional asphaltum or wax grounds that contain petroleum derivatives.^[54]^[55] Introduced in the late 1970s and popularized throughout the 1980s by printmaker Dan Welden, Solarplate photopolymer offers a light-based alternative to chemical etching, where plates are exposed to UV light through a transparency to harden the polymer surface, followed by a simple rinse in lukewarm water to reveal the image. This process builds on photo-etching principles but emphasizes water-based development, eliminating acids entirely and producing durable intaglio plates suitable for traditional printing presses.^[56]^[57] Recent developments from 2020 to 2025 have focused on fully biodegradable etching grounds derived from plant resins, such as BioBLac Hard Ground, which uses 100% bio-based film-forming ingredients to resist mordants like ferric chloride without synthetic polymers. Complementary low-VOC mordants, including refined citric acid formulations in saline sulfate systems, further minimize environmental impact by breaking down naturally post-use. As of 2025, further refinements include enzyme-based developers for even lower environmental impact, promoted by organizations like the College Art Association. These advances enable artists to achieve professional results while adhering to stricter ecological standards.^[58]^[59] The adoption of these non-toxic methods yields substantial benefits, including reduced hazardous waste generation through recyclable etching solutions and simpler cleanup with water, fostering safer studio environments free from respiratory irritants. Contemporary artists affiliated with the California Society of Printmakers, such as Kate Deak, exemplify this shift by employing Solarplate techniques to create intricate etchings that prioritize sustainability without compromising artistic expression.^[60]^[61]

Digital and Contemporary Adaptations

In the 21st century, hybrid digital-etching techniques have emerged as a bridge between traditional intaglio processes and computational design, allowing artists to create intricate compositions using software such as Adobe Photoshop or similar tools to develop images that are then transferred to metal plates via laser etching or inkjet printing of resists.^[62] This workflow enables precise control over line quality and tonal gradients, with digital files processed to generate halftone screens or vector paths before application, followed by chemical or electrolytic etching to incise the plate.^[63] For instance, in architectural representation, digital models are rendered and etched onto copper plates to produce hybrid drawings that blend algorithmic precision with the organic variability of acid bites.^[63] Polymer gravure represents another key adaptation, utilizing photopolymer films derived from digital positives to form intaglio plates on flexible plastic substrates, which are exposed to UV light and developed in aqueous solutions rather than acids.^[64] Gaining prominence in the 2000s as a non-toxic alternative to metal etching, this method allows for the production of editioned prints with rich, velvety ink tones akin to traditional photogravure, but with shorter preparation times and reduced environmental impact.^[65] Artists like JuliAnne Jonker employ polymer gravure to translate photographic imagery into tactile prints, layering digital manipulations with the plate's inherent relief for subtle depth effects.^[66] Similarly, Greg Brophy uses it to explore landscape motifs, combining scanned elements with hand-applied textures in limited editions. From 2020 to 2025, etching has seen a notable revival through sustainable workshops emphasizing eco-friendly workflows, such as those at Zea Mays Printmaking, where participants learn non-toxic etching integrated with digital pre-press tools.^[67] This resurgence incorporates 3D printing to fabricate custom plate textures, enabling artists to prototype raised or recessed patterns on substrates before etching, thus expanding possibilities for mixed-media hybrids.^[68] Exhibitions like The Contemporary Print 2025 at Austin Community College's Art Galleries highlight this evolution, featuring 48 artists who merge etching with digital and sustainable innovations in juried works.^[69] Master printer Jacob Samuel exemplifies this trend, collaborating with contemporary figures like Rashid Johnson on etched portfolios that blend digital ideation with traditional inking for limited-edition books and suites.^[70] These adaptations underscore etching's adaptability, often combined briefly with non-toxic chemistries to produce multifaceted prints that integrate etching with painting or collage elements.^[67]

Applications Beyond Art

Metallographic and Scientific Uses

In metallographic analysis, etching serves as a critical step to reveal the microstructure of metals and alloys after initial sample preparation. The process begins with polishing the metal sample to a mirror-like finish through successive grinding and polishing stages using abrasive media, which removes surface deformations and ensures a flat, reflective surface for accurate microscopic examination.^[71] Etching is then performed by applying chemical solutions, known as etchants, to the polished surface, which selectively corrode different microstructural features such as grain boundaries, phases, and inclusions, thereby enhancing contrast under optical or electron microscopy.^[71] The primary purpose of metallographic etching is to facilitate the detailed analysis of alloy compositions and the effects of processing conditions like heat treatment, allowing researchers to assess material properties, homogeneity, and potential defects. Common etchants include nital, a solution of 2-5% nitric acid in ethanol, which effectively exposes grain boundaries in ferritic and martensitic steels by preferentially attacking ferrite phases.^[72] For structures rich in pearlite, picral—comprising 4% picric acid in ethanol—is preferred, as it provides clearer delineation of cementite lamellae without over-etching the surrounding ferrite.^[71] In the case of stainless steels, electrolytic etching with 10% oxalic acid in water at 3-6 volts reveals austenitic grain structures and carbide distributions, offering insights into sensitization and corrosion resistance.^[73] These practices are standardized in ASTM E407, which outlines procedures and reagent compositions for microetching a wide range of metals and alloys to ensure reproducible results.^[74] Beyond quality control in modern materials, metallographic etching finds significant application in failure analysis within engineering, where it uncovers root causes such as improper heat treatment, inclusions, or fatigue cracks that led to component breakdowns in aerospace, automotive, and structural applications.^[75] In scientific contexts, particularly archaeology and conservation, etching enables the examination of ancient metals to determine alloying elements, working techniques, and thermal histories, aiding in the authentication and relative dating of artifacts like bronze tools or iron weapons by correlating microstructures with known historical metallurgical practices.^[76]

Industrial Etching in Manufacturing

Industrial etching in manufacturing involves the controlled removal of material from substrates to create precise patterns, structures, or features at scale, primarily through chemical or plasma-based processes. This technique is essential for producing components in electronics, aerospace, and display technologies, enabling high-volume fabrication with tolerances down to the nanoscale. Unlike artistic etching, industrial applications prioritize uniformity, speed, and minimal defects to meet production demands.^[77] In printed circuit board (PCB) production, etching forms conductive traces by selectively removing copper from clad laminates using a wet chemical process. The workflow begins with coating the board in a photoresist layer, followed by UV light exposure through a photomask to harden the resist in desired pattern areas, leaving unprotected copper exposed. The board is then immersed in an etchant solution, typically ferric chloride (FeCl₃), which dissolves the exposed copper via a redox reaction while the resist protects the traces. This subtractive method is the dominant approach in PCB manufacturing due to its cost-effectiveness and ability to handle complex multilayer designs.^[78]^[79]^[80] Semiconductor microfabrication relies on both dry and wet etching to define nanoscale features in silicon wafers and other materials. Dry etching, particularly reactive ion etching (RIE), uses plasma generated in a vacuum chamber with reactive gases such as sulfur hexafluoride (SF₆) to achieve anisotropic removal, enabling high-aspect-ratio structures critical for transistors and interconnects. The plasma's ions and radicals chemically react with the surface while physical bombardment enhances directionality, allowing features below 10 nm. Complementing this, wet etching employs hydrofluoric acid (HF), often mixed with nitric acid (HNO₃), for isotropic removal of silicon or its oxides, producing smooth surfaces for applications like wafer thinning and MEMS sensors. These techniques ensure precise control in integrated circuit fabrication.^[77]^[81] Beyond electronics, etching supports specialized manufacturing in aerospace and displays. Chemical milling, a variant of wet etching, thins metal sheets like aluminum or titanium for aircraft components such as fuselage skins, creating weight-reducing pockets without introducing stress or burrs through masked immersion in controlled etchants. This process adheres to stringent aerospace tolerances and scales efficiently for prototypes to production runs. In display manufacturing, chemical etching with HF-based solutions removes thin glass layers from flat panels, enhancing strength by eliminating micro-cracks and producing matte finishes for anti-glare surfaces while preserving optical clarity.^[82]^[83] Recent advances from 2020 to 2025 have focused on atomic layer etching (ALE), a cyclical process that removes material one atomic layer at a time using sequential plasma exposure and ligand exchange, enabling defect-free patterning for 2 nm logic chips. This technique reduces undercuts and variability compared to traditional RIE, supporting denser transistor integration in leading-edge nodes by Intel and TSMC, with etch rates tunable to below 0.1 nm per cycle. ALE's precision has minimized sidewall roughness, improving yield in high-volume semiconductor production.^[84]^[85]

Production and Challenges

Printing the Etched Plate

Once the etched plate has been cleaned of any remaining grounds or residues, the printing process commences with inking the incised grooves. Etching ink, an oil-based formulation often incorporating tar or asphalt for its viscous, adhesive properties that ensure retention in the etched lines, is applied using a dabber—a spherical pad made from bound cloth, felt, or leather. The plate is typically warmed slightly to facilitate ink flow, and the dabber is pressed and rolled firmly across the surface to drive the ink deep into the grooves without filling the plate's flat areas excessively.^[86] Following inking, excess ink must be meticulously removed from the plate's surface to reveal the image through the retained ink in the grooves alone. This wiping stage employs tarlatan, a coarse, starched muslin fabric, or the printer's hand for precision. A hard wipe involves vigorous, circular motions with clean tarlatan to polish the surface thoroughly, yielding crisp, defined lines ideal for line etchings. In contrast, a soft wipe uses lighter pressure and sometimes a palm or newsprint overlay to retain subtle burr—fine metal edges raised during etching or working—for velvety tones and richer depth, particularly in aquatint or soft-ground techniques.^[87] With the plate prepared, printing occurs on an intaglio press, where a sheet of dampened, high-rag-content paper is laid over the inked plate and covered with wool felts to cushion and distribute force evenly. The press's rollers apply immense uniform pressure, often exceeding several thousand pounds per square inch (psi), with manual etching presses capable of upwards of 6000 psi, forcing the paper into the grooves to absorb the ink while the plate's surface repels it. This high-pressure mechanism ensures sharp transfers without distortion, distinguishing intaglio from relief methods.^[88] To produce an edition, printers first create working proofs to assess ink distribution, wiping consistency, and overall fidelity to the artist's intent, adjusting techniques as needed. Once satisfied, the full edition is printed, with each impression numbered (e.g., 5/50 for the fifth of fifty) and often signed for authenticity. Copper plates, common for etching, generally limit high-quality editions to 100-300 impressions before groove wear diminishes line sharpness, after which the plate may require re-etching, steel plating, or retirement.^[89]

Common Faults and Solutions

One common fault in the etching process is fouling, also known as foul biting, which occurs when acid penetrates through weaknesses in the acid-resistant ground, creating unintended pits or irregular marks on the plate surface.^[90] This issue typically arises from improper cleaning of the metal plate prior to applying the ground, leaving residues like grease or dust that prevent even adhesion, or from uneven application of the ground itself.^[34] To prevent fouling, artists must thoroughly degrease and polish the plate using whiting or fine abrasives before grounding, ensuring the surface repels water evenly and allows for a secure bond.^[34] If fouling occurs, the affected areas can be corrected by scraping away the damaged metal with a scraper and burnishing smooth with a burnisher, though severe cases may require re-grounding and partial re-etching.^[90] Over-etching represents another frequent problem, where lines or areas intended for shallow bites become excessively deepened due to prolonged immersion in the etching solution, resulting in weak, blurred, or fragile lines during printing.^[91] The primary cause is inadequate monitoring of the bite time, as acid continues to erode the metal beyond the desired depth, especially in softer metals like zinc.^[7] Solutions involve implementing timed dips—typically 10-30 minutes per session depending on the metal and acid strength—followed by rinsing and inspection under magnification to assess progress.^[91] Applying stop-out varnish to protect completed areas between dips further prevents over-etching, allowing controlled deepening only where needed.^[7] Ink-related issues during printing often stem from poor wiping techniques, leading to excess ink remaining on the plate surface and causing filled or muddy prints where lines appear clogged.^[92] This fault is commonly due to insufficient removal of surface ink after inking the grooves, particularly if the wiping cloth is too soft or not progressively stiffened.^[92] Effective remedies include using a structured wiping sequence: first, a coarse tarlatan cloth to remove bulk ink in circular motions, followed by a finer tarlatan for even distribution, and finishing with newsprint or palm for a clean surface tone.^[92] This progressive method ensures ink adheres only in the etched lines, complementing the inking and pressing steps for crisp results.^[92] Plate defects such as pinholes are particularly prevalent with zinc plates, manifesting as tiny surface imperfections that etch into unwanted dots or pimples during the bite.^[93] These arise from manufacturing impurities, scratches, or inadequate pre-etch preparation, allowing acid to exploit microscopic flaws.^[7] The solution lies in pre-etch polishing: scouring the zinc with pumice or 0000 steel wool, followed by thorough degreasing with a solvent like Bon Ami cleaner, to create a smooth, uniform surface resistant to localized etching.^[7] For minor pinholes post-etching, they can be filled with stop-out or burnished flat before printing.^[93]

Cultural Context

Etchings in Art History

Etching emerged as a pivotal medium in Baroque art, particularly through the innovative works of Rembrandt van Rijn, who produced over 300 etchings between 1626 and 1665, masterfully exploring the interplay of light and shadow to achieve dramatic chiaroscuro effects reminiscent of Caravaggio's influence.^[6]^[94] These etchings, often featuring intimate biblical scenes, portraits, and landscapes, elevated the technique beyond mere reproduction, allowing Rembrandt to convey emotional depth and atmospheric richness that paralleled his painted oeuvre.^[95] Building on earlier innovations like those of Jacques Callot, who refined etching tools for greater line variation in the early 17th century, Rembrandt's contributions solidified etching's status as a Baroque staple for expressive narrative art.^[16] In the 19th century, etching experienced a significant revival, with James McNeill Whistler at its forefront, producing tonal etchings such as the Thames Set in 1860 that emphasized subtle atmospheric effects and mood over precise detail.^[96] Whistler's approach, characterized by soft, painterly lines and a focus on harmony, influenced the development of Impressionism by prioritizing the evocative qualities of light and tone, bridging traditional printmaking with emerging modernist sensibilities.^[97]^[98] This revival, spanning Britain, France, and America, repositioned etching as an original artistic medium rather than a reproductive one, inspiring a generation of artists to experiment with its expressive potential.^[99] The 20th century saw etching's continued evolution through experimental suites by Pablo Picasso and Joan Miró, who pushed the medium's boundaries in line with avant-garde movements. Picasso's Vollard Suite, comprising 100 etchings created between 1930 and 1937, explored neoclassical and surreal themes with bold, fluid lines and dynamic compositions, demonstrating his mastery in adapting etching to personal and political narratives.^[100] Similarly, Miró produced innovative etching suites, such as the 17-etching series of 1939, incorporating surrealist automatism and abstract forms derived from dream-like imagery and folk influences to challenge conventional representation.^[101] These works exemplified etching's versatility in modernist experimentation, allowing both artists to produce intricate, psychologically charged series that expanded the medium's role in contemporary art.^[102] Etching's capacity for producing multiples profoundly impacted the art market by democratizing access to original works, enabling broader dissemination of images from the Renaissance onward and fostering public engagement with high art beyond elite patronage.^[103] In the Baroque and 19th-century periods, this reproducibility allowed artists like Rembrandt and Whistler to reach wider audiences, while 20th-century suites by Picasso and Miró further amplified etching's influence through affordable editions that shaped cultural identity and artistic discourse.^[104]

The "Etchings" Euphemism

The phrase "come up and see my etchings" is a well-known euphemism originating in the early 20th century, used to invite someone, typically in a romantic context, to a private residence under the pretense of viewing art, but implying a sexual advance. It gained popularity in the 1920s, associated with the Paris art scene and artists like Louis Icart, whose erotic etchings contributed to its suggestive connotation.^[105] By the mid-20th century, the expression had become a cliché in English-speaking cultures, often referenced in literature and media to denote seduction.^[106] In the context of art history, the euphemism highlights the cultural allure of etchings as intimate, collectible works that could serve as a sophisticated cover for personal encounters. While forgeries of etchings, particularly of old masters like Rembrandt, were common in the 19th century—often using techniques like photogravure to mimic originals—the term "etchings" itself was not euphemistically applied to fakes in the art market. Authentication advancements, such as ink analysis and microscopic examination of plate marks, helped distinguish genuine etchings from reproductions after the late 19th century.^[107]

References

[1]
Etching - The Metropolitan Museum of Art
Dec 21, 2018 · Etching is an intaglio printmaking process in which lines or areas are incised using acid into a metal plate in order to hold the ink.Missing: credible | Show results with:credible
[2]
Etching - MoMA
An intaglio printmaking technique that creates thin, fluid lines whose effects can vary from graceful and serpentine to tight and scratchy.
[3]
Etching | History of Science Museum
The technique of etching emerged from the method of decorating armour in the fourteenth century. This technique involved painting the design in a resist and ...Missing: definition | Show results with:definition
[4]
The Printed Image in the West: Etching - The Metropolitan Museum ...
Etchings were first produced around 1500 in southern Germany. These early German etchers made use of iron plates, stronger than copper yet susceptible to rust ...
[5]
Etching: A Survey - History and Techniques | London Fine Art Studios
Dec 22, 2019 · Etching is an intaglio method of printmaking, intaglio methods include hard and soft ground etching, engraving, drypoint, mezzotint and aquatint.
[6]
Rembrandt van Rijn (1606–1669): Prints
Oct 1, 2004 · Rembrandt created some 300 etchings and drypoints from about 1626 to 1665. His career as a printmaker ran parallel to his career as a painter—he ...Missing: steps notable
[7]
Etching for Beginners - What You Need to Get Started - Jackson's Art
May 12, 2022 · Etching is a five hundred year old printmaking technique with a rich history. The use of acids to create a chemical reaction and etch a design ...
[8]
Niello: an Historical and Technical Survey - ResearchGate
Aug 6, 2025 · It is used to decorate silver, bronze, and gold objects. The history of the use of niello is reviewed, as well as the properties of the various ...
[9]
Takfit or Niello is a clear evidence of Egyptians' ability to stand the ...
Sep 8, 2021 · The craft of Takfit or Niello is considered as one of the most prominent form of metal-engraving, and one of the oldest artistic forms known to Egyptians.
[10]
The Use of Inlays in Early Greek Bronzes - Getty Museum
Although these inlays are often described as using niello (a mixture of sulfur and various metals) in the archaeological and art historical literature on the ...
[11]
Chemistry International -- Newsmagazine for IUPAC
Oct 24, 2005 · The etching was usually carried out with nitric acid, which was known in medieval Europe since at least the 13th century. Erlebacher and co ...
[12]
The Renaissance of Etching | The Metropolitan Museum of Art
Oct 23, 2019 · This exhibition traces the first 60 years of the etched print, including works by Dürer, Parmigianino, and Pieter Bruegel the Elder.
[13]
Etching History - The Engraving Place
Jan 10, 2020 · The oldest dated etching is by Albrecht Dürer in 1515, although he returned to engraving after six etchings instead of developing the craft. The ...
[14]
The Renaissance of Etching - The Metropolitan Museum of Art
The Renaissance of Etching is a groundbreaking study of the origins of the etched print. Initially used as a method for decorating armor.Missing: 16th | Show results with:16th
[15]
Parmigianino (Girolamo Francesco Maria Mazzola) - The Lovers
He was the first Italian to exploit the possibilities of etching, in which lines are freely scratched through a waxy ground, to directly translate the ...
[16]
Jacques Callot etchings, ca. 1615-1635 | Research Collections | Getty
Sep 10, 2025 · French etcher and engraver (1592-1635). The 429 prints in this collection represent approximately one-third of Callot's works.
[17]
Etching. Beguin. - at Polymetaal
At the beginning of the 16th century etching was used to make plates but "sometimes an irregular line and the thickness of the ink (in relief) makes one think ...Missing: limitations | Show results with:limitations
[18]
Equestrian Portrait of Louis de Lorraine, Prince of Phalsbourg
He etched over fourteen hundred plates and introduced several technical innovations, including the use of a hard ground, the invention of the etching tool ...
[19]
Aquatint - MFA Cameo - Museum of Fine Arts Boston
Apr 27, 2022 · An intaglio etching technique invented in the 1760s by J.B. LePrince. Aquatints were popular until the late 1830s. To produce an aquatint the ...
[20]
Aquatint | Tate
The technique was developed in France in the 1760s, and became popular in Britain in the late eighteenth and early nineteenth centuries. It is often used in ...Missing: resin | Show results with:resin
[21]
Make Your Own Stop-Out Varnish for Intaglio Printmaking with ...
Feb 24, 2020 · Prior to use, we recommend first degreasing the etching plate using a paste created from a mixture of Calcium Carbonate (aka Chalk or Whiting) ...
[22]
Technique - Illuminating John Sloan - Bryn Mawr College
Below is a step-by-step explanation of the etching process used by artists like John Sloan: 1: Cover the metal plate with a waxy, acid-resistant ground. 2 ...
[23]
PRINTMAKING TECHNIQUES - Clark Art Institute
An etching is created by drawing an image on a wax-coated metal plate, traditionally copper but sometimes zinc, with the sharp point of an etching needle.Missing: steps | Show results with:steps
[24]
[PDF] Wet Chemical Etching - Engineering Research
Etching of metals can be described as the oxidation of the metal via protons donated by the. H3O+ hereby reduced to hydrogen as follows: metal + H+ à metal+ + H.
[25]
https://www.dickblick.com/products/copper-etching-plate/
[26]
https://art.wsu.edu/documents/2023/08/intaglio-start-finish.pdf
[27]
Printmaking 101: Preparing a Plate: Bevel, Polish, Degrease
Aug 22, 2012 · In this demo, I'll take you through beveling, polishing, and degreasing a copper plate. All photos for this demo were taken at Atelier Meridian.Missing: traditional solvent mordants nitric dilution ferric chloride
[28]
https://shop.takachpress.com/whiting-1-lb/
[29]
Process - Magical Secrets
Ink accumulates at the edges of an image that is flat bitten, but in its center only the ink held in the grain of the metal remains after the plate is wiped.Missing: iron | Show results with:iron
[30]
Soft Ground Etching with Baldwin Intaglio Ground - Praeterita
Oct 17, 2017 · It comes in a tube, and when you squeeze some out onto an inking slab it looks like etching ink. You roll it onto the copper plate with a brayer ...
[31]
Intaglio - Safer Printmaking | University of Saskatchewan
Ferric Chloride. Ferric chloride has virtually replaced the use of nitric acid and Dutch mordant as a solution for etching copper.
[32]
How to make an etching - Lost Art Student
The mordants most commonly used for etching copper, zinc, steel, and other metal plates are ferric chloride (most safe), nitric acid and the Dutch mordant.
[33]
Acid Etching: Types, Applications and Benefits - IQS Directory
Used acid solutions should always be neutralized with baking soda and disposed of at hazardous waste facilities due to their content of dissolved metals— ...
[34]
[PDF] Etching Handbook - Glasgow Print Studio
Use protective equipment. Resin dust; can cause lung damage and respiratory problems. Printing inks; contain poisonous metals and carcinogenic substances. #.
[35]
Intaglio Printmaking Made Simple | Here Are The 5 Key Processes
Multiple bites are often used to create a variety of line thicknesses. ... Aquatints are often combined with traditional line etching or other etching techniques.
[36]
What Is Intaglio Printing? - An Ancient Form of Printmaking
Aug 30, 2023 · The longer the plate is exposed to the acid, the more of the metal is consumed, leading to darker and deeper lines. Multiple bites are ...
[37]
Print | Callot, Jacques | V&A Explore The Collections
This etching resembles an engraving because the artist has used an échoppe, a tool with an oval profiled end, to draw tapered lines through the etching ground ...
[38]
The Printed Image in the West: Aquatint - The Metropolitan Museum ...
Oct 1, 2003 · Aquatint was invented by the printmaker Jan van de Velde IV ( 30.54. 72 ) around 1650 in Amsterdam, where mezzotint, another tonal printing ...Missing: Noir | Show results with:Noir
[39]
Aquatint - MoMA
An intaglio printmaking technique that creates tonal areas. Its name reflects its watercolor-like effects. Powdered resin is sprinkled on a metal plate and ...Missing: development 1760
[40]
Aquatint
Aquatint is a process used to create tone in etching. There are many variations on aquatint but the original one involves rosin.
[41]
Aquatint - ART 320- Introduction to Printmaking
Aquatint is an intaglio printmaking technique, a variant of etching that only produces areas of tone rather than lines.
[42]
Printmaking Terms - Clark Art Institute
Etching: Etching relies on the action of acid, rather than direct cutting, to produce a design in a metal plate. The plate is first covered with a waxy acid- ...
[43]
Soft Ground Etching - ART 320- Introduction to Printmaking
A mixture of ordinary etching ground usually with tallow or grease that is used chiefly to obtain textural lines and effects on the plate.
[44]
Printmaking Terms - Tandem Press - University of Wisconsin–Madison
Aquatint. Fine particles of acid-resistant resin are deposited on the plate and heated so they adhere to the surface. The plate is immersed in acid, ...<|control11|><|separator|>
[45]
Museum exhibition frames history's take on war - Emory University
Ten aquatints from Francisco José de Goya's "The Disasters of War" series. "Aquatint is a form of etching that can produce deep, dark tones. Goya really ...<|control11|><|separator|>
[46]
Goya's Disasters of War: A Legacy in Print - University of San Diego
Feb 9, 2012 · ... the Disasters of War series, a set of 80 prints created through the etching and aquatint processes. Often arresting and horrific, the ...
[47]
[PDF] Sugar Lift Process:
Jan 9, 2004 · Sugarlift uses sugar and India ink on a ball hardground plate, which is then melted and dissolved in water to create a negative aquatint.
[48]
Materials and Methods · Félix Buhot: Printmaker of Nineteenth ...
An etching technique whereby a design is drawn on a plate with a pen or brush using a water-soluble ink in which sugar or salt has typically been dissolved.
[49]
The Alchemy of Drypoint - Hand Papermaking Magazine
By the 1600s Rembrandt was able to combine drypoint with etching to create remarkably sensitive prints. ... The most direct of the intaglio processes, drypoint ...
[50]
Sugar, Spit, and Bay Area Grit - Chapman Blogs
Feb 19, 2015 · Spit bite aquatint is an alternative to bath etching as a way of biting an aquatint. The artist paints a mixture of acid, water, and gum arabic ...Missing: variation | Show results with:variation
[51]
Rembrandt's Prints | Cleveland Museum of Art
He successfully integrated drypoint with etched and engraved work in one composition. ... Etching, drypoint, and engraving on Japanese paper; 26 x 20.4 cm.
[52]
[PDF] HOOD MUSEUM OF ART
Lacourière introduced Picasso to new techniques for creating tonal variations on the plate, including sugar-lift aquatint, spit-bite, and open- bite techniques ...
[53]
The complete etchings of Pablo Picasso Volume 2 1936-1965
... 1930 and 1937, after being introduced to Lacourière's original techniques, of aquatint, etching and resins, particularly his sugarlift aquatint process.
[54]
Edinburgh Etch - nontoxicprint : Art + Science
The Edinburgh Etch method allows this noble metal amalgam to be etched as easily as a sheet of copper. Brass can be etched in the same solution as the one ...
[55]
Copper Sulphate - Nontoxic Printmaking
Recipe: 1 litre of warm water 100 gms of copper sulphate 100 gms of sodium chloride (salt) Add copper sulphate and salt to water and stir till dissolved.
[56]
Solarplate Etching | an innovative, safer approach to printmaking
Printmaking with SOLARPLATE is a simple approach and safer alternative to traditional etching and relief printing.What is Solarplate · Shop · Shop Solarplates · TroubleshootingMissing: introduction solutions
[57]
Printmaking in the Sun - Amazon.com
30-day returnsIn 1972, Welden discovered that polymer printers' plates could be used in printmaking by exposing them to the sun. Draw on a transparency, place it over the ...Missing: introduction | Show results with:introduction
[58]
new! bio-based hard ground for etching plates! - CS Pogue
BioBLac Hard Ground is an excellent resist for ferric chloride, electro-etching electrolytes, and even nitric acid. It's 100% bio-based film-forming ingredient.
[59]
New Etching Chemistry - nontoxicprint : Art + Science
The Metal Salt Etching System has no toxic gas emissions that are comparable to acid etching. During etching, the chemical reaction by-products are largely ...
[60]
NON-TOXIC ETCHING STUDIO TIPS - Spark Box Studio
The Edinburgh Etching solution is made with ferric chloride, citric acid and water, which is a safer alternative to nitric acid. We have been using our tank for ...
[61]
California Society of Printmakers 2022 Show
Nov 21, 2022 · Stern, solar plate etching, Remembering. Left corner. Kate Deak, drypoint etching, watercolor, remnants, chine collé, Phuket Crimson Strike.Missing: toxic examples<|control11|><|separator|>
[62]
A Hybrid Approach to Photogravure on Copperplate - Carles Mitjà
Dec 7, 2016 · The hybrid approach uses digital techniques for image processing and screen preparation, including a computer-generated digital screen for high ...
[63]
[PDF] Hybrid Representation: Intaglio Etching of Digital Models - CumInCAD
This paper explores an alternative approach to architectural representation by using computation and digital modeling to develop novel modes of drawing.
[64]
[PDF] Polymer Photogravure Printmaking Technique - Watermark Art Center
The cured polymer plate is printed like a traditional intaglio copper etching plate. A skim of ink is applied over the whole surface. The ink is then wiped away ...
[65]
Photo polymer gravure – the why's – AlternativePhotography.com
Mar 7, 2010 · The photopolymer plate has a UV sensitive emulsion. With these plates, water is used to etch into the surface after the emulsion has been ...
[66]
Photopolymer Gravure Etchings - JuliAnne Jonker Fine Art
Photogravure is one of my favorite old world printing processes. The old masters in photography used this process in the early twentieth century.
[67]
Green Printmaking Certificate Program 2025
$$30 deliveryThis 13-day intensive workshop is a fantastic opportunity to learn everything you need to know to set up and maintain a safe etching practice.Missing: 2020-2025 | Show results with:2020-2025
[68]
6.6 3D printing in printmaking - Fiveable
3D printing revolutionized printmaking by introducing additive manufacturing techniques to create three-dimensional objects · Transformed traditional printmaking ...
[69]
The Contemporary Print 2025 | The Art Galleries
The exhibition features 48 artists, showcasing an independent survey of traditional and innovative contemporary printmaking practices across the world.Missing: revival 2020-2025
[70]
New Ground: Jacob Samuel and Contemporary Etching - MoMA
New Ground: Jacob Samuel and Contemporary Etching gathers the resulting books and print portfolios to show the flexibility of etching and its reinvention for a ...Missing: revival 2020-2025
[71]
Metallographic Etching - Buehler - Metallography Equipment ...
Nov 15, 2021 · Metallographic etching is done by immersion or by swabbing (or electrolytically) with a suitable chemical solution that essentially produces selective ...
[72]
Table I - Selected Tint Etchants - metallography.com
Pre-etch with nital or picral. 8. 21-28% aqueous sodium bisulfite, Beaujard and Tordeux`s tint etch for steels. Immerse 10-25 s Reveals grain boundaries and ...
[73]
Solutions by Material Stainless Steel - Buehler - Buehler
Do not always get uniform etching. 100mℓ water 10g oxalic acid, Use for stainless steels at 6 V DC. Carbides reveal by etching for 15-30 seconds, grain ...
[74]
E407 Standard Practice for Microetching Metals and Alloys - ASTM
Nov 21, 2023 · This practice covers chemical solutions and procedures to be used in etching metals and alloys for microscopic examination.
[75]
Metallographic Techniques in Failure Analysis - ASM Digital Library
Metallographic examination is one of the most important procedures used by metallurgists in failure analysis. Typically, the light microscope (LM) is used ...
[76]
[PDF] Metallography and Microstructure of Ancient and Historic Metals
This crucible steel is a high-quality product of ancient historic significance. Color interference tint etched in selenic acid. x420. Publications Coordinator: ...
[77]
Reactive Ion Etching: A Comprehensive Guide - Wevolver
Apr 11, 2023 · Reactive Ion Etching (RIE) is a dry etching technique widely used in semiconductor manufacturing, MEMS fabrication, microfabrication and nanotechnology.
[78]
Etching Printed Circuit Boards: A Complete Guide to the PCB ...
Oct 22, 2025 · Wet chemical etching is the most widely used method in PCB manufacturing. It employs liquid chemical solutions—commonly ferric chloride (FeCl₃) ...
[79]
PCB Etching: Complete Process Guide & Best Practices - Wevolver
Jul 1, 2025 · PCB etching is a chemical process that removes copper to form circuits. This guide covers fast etchants, FeCl₃ reactions, ...
[80]
PCB Etching Process Explained: DIY Methods Vs. Industrial ...
Aug 20, 2025 · Etching is a subtractive step in PCB manufacturing that defines the circuit by removing exposed copper areas. The process follows photoresist ...
[81]
Isotropic and Anisotropic Silicon Wet Etching Processes - Modutek
May 23, 2023 · Isotropic silicon wet etching is a process in which material is removed uniformly in all directions from a silicon substrate.
[82]
Why Chemical Milling is the Right Fit for the Aerospace Industry
Jan 4, 2023 · Chemical milling, or photochemical etching, is a clean, scalable option that brings unique advantages to the aerospace industry.
[83]
Chemical Glass Etching Equipment for Flat Panel Displays - Chemcut
Find high quality glass chemical etching equipment from Chemcut. Our glass etching machines are ideal for flat panel display manufacturing. Contact us today.
[84]
Atomic Layer Etch (ALE) - Semiconductor Engineering
ALE is a next-generation etch technology to selectively and precisely remove targeted materials at the atomic scale.
[85]
Using atomic layer etching for 2nm nodes in semiconductor ...
Using Atomic Layer Etching for 2nm Nodes in Semiconductor Manufacturing. The Dawn of Atomic Precision in Semiconductor Fabrication.
[86]
Printing a plate. Beguin. - at Polymetaal
The plate should be slightly warmed on a heater and then inked with a dabber. Make sure that the ink penetrates the lines. The ink used in intaglio printing ...Missing: pressing | Show results with:pressing
[87]
Metal Plate Printing (Intaglio) - Charbonnel
To wipe ink from intaglio plates, we recommend making a wiping pad from tarlatan fabric. This is a semi-sheer open-weave cotton cloth that has been starched, ...
[88]
Pressure/Force (in PSI) of a Kelsey? - Briar Press
Feb 12, 2008 · For those working in intaglio, a manually driven etching press can exert upwards of 6000 PSI. —————. So, Mr. Winking Cat has a point, that a ...
[89]
About Prints - Harris Schrank Fine Prints
Lifetime Impressions:In general the prints made during an artists lifetime are better because the artist approves them, or because the matrix (copper plate, ...
[90]
Graphic Studio Dublin: Prints and Printmaking - Printing Techniques
Foul bite is when an intaglio plate is being etched in acid the ground can begin to break down allowing the plate to be etched in unwanted areas. The foul bite ...
[91]
The Art of Etching Explained - Creating Etching Art with Copper Plates
7–12 day deliveryEtching art, especially copper etching art, is a form of precision and creativity in artwork. The usage of copper plates in etching is highly beneficial.
[92]
Ink: It's Not You, It's Me - Magical Secrets
A good tarlatan and hand wipe will take you a long way. We like to ink our plates using a plastic card and then use a relatively clean and broken-in tarlatan.
[93]
Zinc Etching Plates – Aspet
Pinholes result in pimply etching if not opaqued. 3)-EXPOSURE: Expose using ... Descum Hydro-Coat zinc plates using a solution of sulfuric and nitric acid.
[94]
Rembrandt: The Embrace of Darkness and Light - Nevada Museum ...
Nov 7, 2009 · He achieved the same mastery of light and atmosphere in his etchings as he did in his paintings, the same baroque richness of detail and texture ...
[95]
A look at the work of Rembrandt van Rijn
Renowned for his use of sharp chiaroscuro that betrays the influence of Italian Baroque artist Caravaggio (1571–1610), Rembrandt became a master at using this ...<|separator|>
[96]
Whistler & Company: The Etching Revival - Reading Public Museum
"Whistler & Company" highlights James Abbot McNeill Whistler's role in the 19th-century etching revival, featuring his Thames, Venice, and Paris scenes.
[97]
Whistler, James Abbott McNeill - Ibiblio
Whistler's paintings are related to Impressionism (although he was more interested in evoking a mood than in accurately depicting the effects of light), to ...
[98]
James McNeill Whistler (1834–1903)
Apr 1, 2010 · Whistler was instrumental in establishing the credo of modern art. In 1885—a year before George Seurat's emblematic Post-Impressionist canvas, ...
[99]
Whistler and the American Etching Revival | Nelson Atkins
Whistler's influence sparked a renewed interest in etching, elevating it to an artist's medium, and leading to the American Etching Revival.
[100]
Picasso large print guide | British Museum
Nov 7, 2024 · Etching involves drawing with a needle on a metal plate coated with a hard waxy layer. The drawing exposes the metal, which is 'bitten' when the ...
[101]
[PDF] Joan Miro - MoMA
One of the major tendencies of twentieth-century painting since the important exhibition of Moham ... ETCHINGS. 1939 Suite of 17 etchings. 1935 One etching ...Missing: 20th | Show results with:20th
[102]
Picasso: The Vollard Suite and Cubism and Its Legacy | Hood Museum
Aug 1, 2013 · The Vollard Suite etchings are among the most extraordinary prints ever created and reveal the Spanish artist's mastery of the printmaking process.
[103]
Printmaking in Europe, c. 1400−1800 - Smarthistory
Aug 18, 2020 · In the sixteenth century, printmakers in northern Europe and Italy ... Europe like Italy, etching also spread throughout the continent soon ...
[104]
Ink and paper: the democratisation of art across centuries - Art UK
Feb 5, 2024 · The work of printmakers reached a broader audience and played a role in shaping the cultural and visual identity of their respective societies.
[105]
ART; In London, A Catalogue Of Fakes - The New York Times
Apr 29, 1990 · Now gathered under the glass of museum cases and the glow of exhibition lighting, these frauds are reclassified as ''authentic'' wonders.
[106]
print; forgery | British Museum
The forgery may have been done by Claude-Henri Watelet, who owned and republished these and other etched plates by Rembrandt in the eighteenth century. Six ' ...
[107]
Rembrandt Etchings: States, Fakes and Restrikes
Feb 9, 2024 · This exhibition examines the problem of authenticating this artist' etchings. The exhibition includes first state pulls of etchings made during ...
[108]
Decoding the Canvas: A Brief History of Forgery and Copying
Nov 13, 2023 · Art forgery is, by no standards, a new phenomenon; its roots can be established in the context of Ancient Roman sculptors in the late fourth century BC.
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How to Make Sure You're Not Buying a Forgery | Artsy
Apr 30, 2020 · In other cases, she's uncovered a fake Cézanne and a whole warehouse full of forged works in Las Vegas. She didn't need to look at any of these ...
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What if every artwork you've ever seen is a fake? | Art - The Guardian
Jul 10, 2025 · As you wander through the Museum of Art Fakes in Vienna, an institution dedicated to showcasing the art of forgery, what strikes you most is ...