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A dye is a colored substance that chemically bonds to the substrate to which it is being applied. 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. [2]
Dyeing Pigments for sale at a market in Goa, India Cotton being dyed manually in contemporary India Silk dye in pan on stove. Khotan. Dyeing is the application of dyes or pigments on textile materials such as fibers, yarns, and fabrics with the goal of achieving color with desired color fastness.
Colorfast dyes are dyes resistant to shifts in hue, fading, or bleeding (transfer of dye) when wet. [12] copperas Copperas is the dyer's name for ferrous sulfate, an iron mordant used to sadden or reduce the saturation of colors. [4] [13] crimson Crimson is a deep red dye or color derived from the word kermes. [14] [15] [16] crottle
The colorant at this stage has the consistency of fine, red mud. Color used as a dye can be diluted. [34] 1.5 kilograms (3.3 lb) of dried florets produces enough dye pigment to dye a small piece of fabric. The dye color is fixed in the fabric with a mordant. Darker shades are achieved by repeating the dyeing process several times, having the ...
Colour fastness is the property of dyes and it is directly proportional to the binding force between photochromic dye and the fibre. The colour fastness may also be affected by processing techniques and choice of chemicals and auxiliaries. [1] [2] The term is usually used in the context of clothes.
A woman with dyed pink hair. Hair coloring, or hair dyeing, is the practice of changing the color of the hair on humans' heads.The main reasons for this are cosmetic: to cover gray or white hair, to alter hair to create a specific look, to change a color to suit preference or to restore the original hair color after it has been discolored by hairdressing processes or sun bleaching.