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Composition: The "direct dye" classification in the Color Index system refers to various planar, highly conjugated molecular structures that also contain one or more anionic sulfonate group. It is because of these sulfonate groups that the molecules are soluble in water.
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www4.ncsu.edu/~hubbe/DIRD.htm
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Some dyes are used in the textile industry to dye cotton without using a mordant. An older name for dyeing without a mordant is direct dyeing, and the dyes are termed direct dyes or, sometimes, ... The most commonly used direct dye is probably congo red (direct red 28) which is used for demonstrating amyloid.
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stainsfile.info/StainsFile/dyes/class/direct.htm
stainsfile.info/StainsFile/dyes/class/direct.htm
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We are Manufacturer and exporter of Dyestuff, Acid dyes, Reactive dyes, Direct dyes, Leather, Colours, Colorants, Printing, Paper dyes, Bacis dyes, Wool dyes, Light fast direct dyes, Leather brown dyes, Metal complex dyes, Nylon dyes, Silk dyes, Fast bases, Naphthol dyes, ... Dye intermediate I Enzymes;
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Cushing's Perfection Direct Dye Color Card ... Dyes for cotton, linen, hemp and other plant fibers including basket reed. ... Colors viewed on a web page are rarely exact. Call, write, or e-mail and we would be pleased to send you a free color card by mail.
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www.wcushing.com/direct_dye_color_card.htm
www.wcushing.com/direct_dye_color_card.htm
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Direct dyes are used on cellulose fibers such as cotton, rayon, and linen. ... The one advantage is that direct dyes may be more lightfast, that is, resistant to fading in the light, than fiber reactive dyes. The "direct dye" classification in the Color Index system refers to various planar,
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www.greatvistachemicals.com/dyes_and_pigments/direct_dy...
www.greatvistachemicals.com/dyes_and_pigments/direct_dye.html
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direct dye ( də¦rekt ′dī ) ( materials ) A group of coal tar dyes that act without mordants, for example, benzidine dyes ... Direct dye it application and it's property?
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www.answers.com/topic/direct-dye-materials
www.answers.com/topic/direct-dye-materials
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Composition for dyeing keratin fibers, for example, human keratin fibers such as the hair, which comprises at least one compound chosen from among the direct dyes of the heteroylarylmethane type defin ... 13. A composition according to claim 12, wherein said quinonic direct dyes are chosen from neutral, acid,
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www.freepatentsonline.com/20040187229.html
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The disclosure provides compositions for simultaneously bleaching and dyeing keratin fibers, comprising at least one direct dye chosen from anionic and nonionic dyes, with the exception of 7-(6′-met ... 4. The composition according to claim 1, wherein the at least one direct dye is a nonionic dye chosen from nitrobenzene dyes,
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www.freepatentsonline.com/20070033744.html
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Alibaba - Direct dye: Direct dye Manufacturers & Direct dye Suppliers. Find a reliable & professional Direct dye manufacturer or supplier. Also exporters of wholesale Direct dye. ... Home > Products > Search : Direct dye 10,747 Products...
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direct_dye.directory.alibaba.com/
direct_dye.directory.alibaba.com/
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