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You are here: Home > All About Hand Dyeing > How to Dye with Light


Sun Paint:
Use Sunshine to Make Colorful Fabric Prints

by Barbara Kane

This activity set comes with everything kids need to make fabric prints including bottles of sun paints, applicator brushes, white cotton bandanas, and metal rings. 60 page instruction book.

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Artistic Photographic Processes

Nonsilver photographic processes: open the door to unlimited creative exploration. This book explains the chemistry and practice of five non-silver processes: cyanotype, vandyke, gum bichromate, Kwik-Print, and Inkodye. The book also outlines how to experiment with electrostatic copiers, make magazine transfers, use graphic-arts film, how to photo silkscreen.

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Blueprints on Fabric: Innovative Uses for Cyanotype

by Barbara Hewitt

Blueprints on Fabric: Innovative Uses for Cyanotype

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light-sensitive dye

SolarFast dye
This exciting line of dyes opens a whole new world of possibilities. Textile and paper artist alike can now print continuous tone photographs in any color, quickly and easily. Just apply the dye, expose it to sunlight, wash, and you're done. Permanent on all natural-fiber fabrics.

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Mister Art

Imagery on Fabric: A Complete Surface Design Handbook, Second Edition

by Jean Ray Laury

Completely revised edition updated with all the latest techniques and technology for transferring images to fabric. Fabric transfers using copiers and computer printers; light sensitive printing, including blueprint, brownprint, Kwik-Print, Inko Print; drawing and painting with crayons, dye sticks, permanent markers, and paints; stamp printing; discharge printing; silk screening, with quick methods and photo methods; and dye transfers with disperse dyes.

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The Photo Transfer Handbook: Snap It, Print It, Stitch It

By Jean Laury

The Photo Transfer Handbook: Snap It, Print It, Stitch It

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Fabric Painting and Dyeing for the Theatre

by Deborah Dryden

Deborah Dryden's straightforward discussion of the different ways of dyeing and painting fabric makes this revised and updated classic an essential addition to any costumer's or fiber artist's library.

Fabric Painting and Dyeing for the Theatre

How to Dye and Paint Fabric with Light

The three most popular ways to color fabric permanently with sun-developed images are sun painting, dyeing with light-sensitive vat dyes, and photographic blueprinting.

Sun Painting

The easiest method of sun printing is actually sun painting, not dyeing. You saturate fabric with any transparent fabric paint, arrange objects on the damp fabric, then expose the assemblage to the sun or any hot lamp. It is actually the infrared light (radiant heat) which does the trick. It is not the ultraviolet in the light which does the work, as is sometimes claimed, but instead infrared, so a halogen lamp is more suitable than a fluorescent sun lamp. Exposed areas dry first, in the hot light; the exposed fabric, as it dries, sucks additional wet dye out from under whatever you have placed on top of the fabric. The result is lighter-colored 'shadows' wherever you placed the masking objects. The color is deeper where the light from the sun, or the hot lamp, was able to reach. This procedure has been widely popularized for use with Seta Color brand fabric paint; for example, see the Klutz book of Sun Painting, entitled Sun Paint: Use Sunshine to Make Colorful Fabric Prints. However, the same technique can be used with other brands of thin, transparent fabric paint, as well; for example, PRO Chemical & Dye provides instructions for "Sun Printing using PROfab Textile Paints", and Jacquard includes sun printing in their online instructions PDF page for Dye-Na-Flow fabric paint. Sun painting is a highly suitable project for children and beginners.

Light-sensitive Vat Dyes: Inkodye and SolarFast

Another method of sunprinting is to use light-sensitive vat dyes, which are sensitive to ultraviolet light. There are currently two brands of this product type available to dye artists: Lumi's Inkodyes and Jacquard Products' SolarFast. Both are actually vat dyes which have been prereduced, so that instead of being applied in an oxygen-free bath and being developed in the fabric by exposure to oxygen, these dyes are developed by light. Inkodyes and SolarFast dyes are true dyes, not fabric paints. (A dye actually itself attaches to the fabric; fabric paint includes a glue-like binder, which imparts a stiffer feeling to the fabric.) The process is more difficult than the process of tie-dyeing with fiber reactive dyes.

The only retail sources of Inkodye that I have found are Dharma Trading Company and the manufacturers themselves. Formerly manufactured by a concern called Screen Process Supplies Manufacturing Co., Inkodye appears now to be made by Lumi Co LLC, still based in Los Angeles. For a time they were selling only three colors, blue, orange, and red, but now their palette has expanded again, now including navy, black, copper, sepia, magenta and plum. The light-sensitive vat dyes are far more expensive than ordinary vat dyes; as of this writing in 2014, Inkodyes cost $15 for eight ounces of dye. Their shelf life is up to two years.

Jacquard Products' new SolarFast dyes are carried by many art and craft suppliers, both in stores and by mail-order. If your local supply store carries some of the dyes and paints made by Jacquard Products, but not SolarFast, you can ask them to stock SolarFast dyes; at the least, they will probably be willing to order some for you. The color range of the SolarFast dyes is better than the recent color range of Inkodyes, including golden yellow, orange, burnt orange, scarlet, red, violet, purple, blue, teal, green, avocado, sepia, brown, and black. The cost of SolarFast Dye, when ordered through Dharma Trading Company, as of 2014, is less expensive than that of Inkodye, at $7.59 for four ounces or $11.49 for eight ounces; larger volumes are available for a lower price per ounce. Additional products include Jacquard SolarFast thickener for use in screen printing, Jacquard SolarFast Wash, which is high-strength, concentrated detergent used to remove undeveloped SolarFast dye after exposure to UV light, and Jacquard SolarFast Film, which is ideal for inkjet-printing UV-transparent negatives for use with SolarFast dyes.

An excellent source of information on how to use light sensitive vat dyes is Suda House's book, Artistic Photographic Processes. She gives detailed step-by-step instructions in how to apply the dyes to fabric and then develop them. The dye should be dry before exposure to light. The light must include a large amount of unfiltered ultraviolet light; covering with glass to keep items from blowing away is not permitted, as it will prevent much of the ultraviolet light from reaching the fabric. The dyes must be rinsed out of the fabric in cool running water immediately after their exposure on the fabric to sunlight, and then in warm soapy water, so that only the light-fixed dye will remain. Light is not the only way to develop Inkodyes; they will also be developed by heat. After the washing steps, House says that the dyes must be further set into the fabric by ironing. Less detailed instructions for Inkodyes by Todd Walker and by Fred Endsley say that baking is better than ironing, at this stage.

Dyeing with light-sensitive vat dyes is made more difficult by the fact that the leuko form in which the dyes are sold is not the same color as the final dye color. All of the different colors look alike, except for yellow. The different colors also require different exposure times. Among the original InkoDyes (their colors and therefore some of the formulas have changed), the colors yellow and violet take only one to three minutes under a nearby sunlamp; red and blue take three times as long; and green and brown take six times as long. Colors that have been diluted with water take approximately ten percent longer than the undiluted dyes. The original list of Inkodye colors included red, red-orange, orange, orange-yellow, yellow, yellow-green, green, blue-green, blue, blue-violet, violet, red-violet, brown and black. Currently Inkodye does not include a yellow, which considerably limits color mixing possibilities.

Cyanotype: Blue Printing (and Brown Printing)

A third method is to use blueprinting, using exactly the same photographic techniques used in making architectural blueprints, in which fabric is treated with two chemicals, ammonium ferric citrate and potassium ferricyanide. Sometimes you can find pre-treated fabric, which simplifies matters drastically. The treated fabric, whether purchased pre-treated or prepared in the darkroom at home, must be stored in a light-proof bag. Working quickly, but not necessarily in the dark, you arrange your stencils or objects on the treated fabric, then expose it to the sun. A book on how to do this is Barbara Hewitt's Blueprints on Fabric: Innovative Uses for Cyanotype. The technique is also covered in Deborah Dryden's Fabric Painting and Dyeing for the Theatre. The resulting fabric, or garments, can be washed by hand in phosphate-free detergent (phosphates and soda ash will turn it yellow), but should not be line dried out-of-doors, since extended exposure to the sun will encourage fading. Blueprints on Fabric sells treated fabrics, silk scarves, and t-shirts, as well as chemicals for preparing your own fabric.

Silver Printing Fabric

Another method of photoprinting fabric utilizes Rockland's FA-1 Sensitizer, which is a photographic emulsion that makes black-and-white silver prints on fabric. It can be used only on natural fibers. Be aware that it contains poisonous silver nitrate and thus is not suitable for use by children.

Recommended Reading


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Last updated: July 28, 2014

Page created: July 7, 2006 (some content previously published as "What types of dye are used in sun printing?" on April 21, 2005 in my "All About Hand Dyeing Q&A" blog)

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