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What is organic pigments and their main types?

Organic pigments are insoluble organic compounds, which are usually colored by adding substrates in a highly 

dispersed state. The difference between pigments and dyes is that dyes can be dissolved in the dyeing medium ,

while pigments are neither soluble in the medium in which they are used nor in the colored substrate.

 

Organic pigments are widely used in printing ink, paint, paint, synthetic fibre paste coloring, as well as fabric 

printing, plastic and rubber, leather coloring and so on. Among them, ink pigments are the most widely used.

 

Organic pigments have bright colors and strong dyeing power, and are non-toxic, but the light, heat, 

solvent and migration resistance of some varieties are often inferior to those of inorganic pigments.

 

Common type organic pigments

Azo Pigments

The commonly used azo pigments are orange, yellow and red, such as Yonggu orange RN (C.I. Pigment 

Orange 5), golden red (C.I. Pigment Red 21), benzidine yellow G (C.I. Pigment Yellow 12).

 

Lake pigments

Colour lake is a water-insoluble pigment produced by water-soluble dyes (such as acid dyes, direct dyes,

alkaline dyes, etc.) acting with precipitators. Its main products are C.I. Pigment Red 48:2, C.I. Pigment

Red 53:1, C.I. Pigment Purple 1, C.I. Pigment Purple 3, C.I. Pigment Orange 17, C.I. Pigment Blue 17.

 

Phthalocyanine pigments

They are water insoluble organic compounds, phthalocyanine blue and phthalocyanine green.

 

Quinacridone Pigments

C.I. Pigment Purple 19, C.I. Pigment Purple 23, C.I. Pigment Yellow 109, C.I. Pigment Orange 36

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