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Inko dyes are manufactured by the Screen Process Supplies Manufacturing Co., 1199 East 12th Street, Oakland, CA. They are available in 4 oz., pint, or quart quantities. They are available in these colors: red, red-orange, orange, orange-yellow, yellow, yellow-green, green, blue-green, blue, blue-violet, violet, red-violet, brown, and black. If you write to California they will send you a complete brochure on their stock and various uses for the dyes.
Process: Brush the dye on a good paper that can stand washing in soapy water, or a pre-washed natural fiber cloth such as cotton, linen, silk or even a rayon. Contact expose to the sun for 4 to 6 minutes. The time is not fussy, it simply gets brighter. Under UV bulbs it takes 15-20 minutes. Wash the paper or cloth in soapy water 3-5 minutes, and then rinse the soap out. The soap reduces further sensitivity. Dry.
Dyes may be further developed by a hot iron, or baked in an oven . Using an iron you do not get as brilliant colors, and it is time consuming. Set the iron at "cotton", and move iron slowly for at least five minutes. As long as fuming continues, development is taking place. Baking in a 280 degree oven will more easily develop the colors. A higher temperature will darken colors, particularly the yellows. It takes anywhere from 5 minutes to an hour depending on the intensity of color you want.
Colors can be mixed to get the color you desire. It is useful to make test strips as inko dyes all look brownish and you cannot see what color you have until they are exposed and developed. The colors are brilliant; to get a paler color dilute with clear - if you dilute with water you destroy the consistency. Interesting color effects are achieved by overpainting areas.
The one problem with inko dyes is that it adheres to orthos and ruins them. Wipe it off as well as possible with tissue. Inkos will start increasing in intensity if much further exposed to UV. If this should happen, try re-washing in soapy water.
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