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PHYSICAL PROPERTIES OF ORGANIC PIGMENTS Dec 07, 2016

Organic pigments refer to a class of pigments made from organic compounds that have a color and a range of other pigment characteristics. Pigment characteristics, including light fastness, water immersion, acid, alkali, organic solvents, heat, crystal stability, dispersion and hiding power. The difference between an organic pigment and a dye is that it has no affinity for the object to be colored, and only the organic pigment is attached to the surface of the object by an adhesive or a film-forming substance, or mixed inside the object.

Organic pigments refer to a class of pigments made from organic compounds that have a color and a range of other pigment characteristics. Pigment characteristics, including light fastness, water immersion, acid, alkali, organic solvents, heat, crystal stability, dispersion and hiding power. The difference between an organic pigment and a dye is that it has no affinity for the object to be colored, and only the organic pigment is attached to the surface of the object by an adhesive or a film-forming substance, or mixed inside the object. The production of intermediates, production equipment and synthesis process are similar with the production of dyes, so often organic pigments in the dye industry to organize production. Organic pigments and inorganic pigments generally have a higher color strength, easy to grind and dispersed particles, not easy to precipitate, the color is more bright, but light fastness, heat resistance, weathering performance is poor. Organic pigments are generally used in ink, paint, rubber products, plastic products, cultural, educational supplies and building materials and other materials coloring.