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By Arnold R. Lang
Dyes and pigments are elements that impart color to a cloth. The time period colorant is usually used for either dyes (also known as dyestuffs) and pigments. the key distinction among dyes and pigments is solubility (the tendency to dissolve in a liquid, specifically water). Dyes are typically soluble - or should be made to be soluble - in water. as soon as a dye is dissolved in water, the fabric to be dyed could be immersed within the dye resolution. because the fabric soaks up the dye and dries, it develops a color. If the fabric then keeps that color after being washed, the dye is related to be colourfast.Pigments are more often than not now not soluble in water, oil, or different universal solvents. To be utilized to a fabric, they're first floor right into a superb powder and punctiliously combined with a few liquid, known as the dispersing agent or automobile. The pigment-dispersing agent mix is then unfold at the fabric to be colored. because the dispersing agent dries out, the pigment is held in position at the fabric. in general, dyes are used for colouring textiles, paper, and different elements, whereas pigments are used for coloring paints, inks, cosmetics, and plastics. This ebook offers new and critical examine from all over the world during this box.
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