What do dyes do?

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The dye trader sells dyes and I don't know what they do. Do they dye clothes to make them look better? Or do they have effects on you if you use them?
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Which dye is used for?
This distinguishes dyes from pigments which do not chemically bind to the material they color. Dye is generally applied in an aqueous solution, and may require a mordant to improve the fastness of the dye on the fiber....Some dyes commonly used in Staining:Basic DyesAcidic DyesCrystal violetCongo RedMethylene Blue2 more rowsWhat are the benefits of dyes?
Minimal Environmental Impact \u2013 Because they come from natural sources, natural dyes are not harmful to the environment, which makes it so appealing for consumers. Natural dyes are biodegradable and disposing them don't cause pollution.Are dyes important?
They're used in the makeup industry for similar reasons, can be used as pH indicators, and are also popular in art, textiles, and leather making. In conclusion, natural dyes offer a host of benefits for human use. Most significantly, they are better for the environment and our health.What is the function of dye in biology?
Dyes are used for intravital colouration of living cells, staining tissues and microorganisms, as antiseptics and germicides, and some as stimulants of epithelial growth. For individual dyes, see the specific names.DYES, TYPES OF DYES AND DYES USES
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Images: Ksenia Chernaya, Ksenia Chernaya, Max Vakhtbovych, Yan Krukov