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In a reactive dye, a chromophore (an atom or group whose presence is responsible for the colour of a compound) contains a substituent that reacts with the substrate. Reactive dyes have good fastness properties owing to the covalent bonding that occurs during dyeing. Reactive dyeing is the most important method for coloring cellulose fibers.
Vinyl sulfone dyes are reactive dyes comprising a vinyl sulfone group as reactive group (a fiber-bonding site of the reactive dye, "reactive hook"). Due to the relatively high reactivity of the vinyl sulfone group with water (residual moisture, air humidity), it is present in many commercial products in a protected form.
Reactive dyes have better fastness properties owing to this covalent bonding, and are the most important method for coloring cellulose fibers but can also be used on wool and nylon. [ 1 ] Reactive dye printing is a method of printing fabrics using reactive dye incorporated into a paste or wax including components such as sodium alginate gum ...
Procion is a brand of fibre reactive dyes. They are commonly used in tie dye and other textile crafts. They are dichlorotriazine dyes and were originally made by Imperial Chemical Industries. The brand name is now owned by Dystar, but, since the patent on the dyes has expired, many manufacturers around the world now make them. [1]
Reactive dyes are by far the best choice for dyeing cotton and other cellulose fibers at home or in the art studio. Disperse dyes were originally developed for the dyeing of cellulose acetate, and are water-insoluble. The dyes are finely ground in the presence of a dispersing agent and sold as a paste, or spray-dried and sold as a powder. Their ...
Boasting healthier and gentler formulas, these clean hair dyes achieve their rich color payoff and gray-concealing abilities from naturally derived botanicals and pigments instead of known ...
This is a list of dyes with Colour Index International generic names and numbers and CAS Registry numbers. ... Reactive blue 4 61205 anthraquinone 13324-20-4: BODIPY:
You probably know it best from the hue it gives bright-red decorating icing, Valentine's Day sweets, and, yes, maraschino cherries. Why Was Red Dye No. 3 Banned? Actually, the dye was already ...
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