A pigment is a colored material that is entirely or nearly insoluble in water. Pigments are a set of compounds that have an intense color and are used in coloring other materials. The pigment is a material that changes the color of reflected or transmitted light as the result of wavelength-selective absorption.
There are two types of pigments. They are the following:
1.Organic pigment
2.In organic pigment
The organic pigment contains carbon and typically does not occur naturally. They are used as mass tolerance in diverse applications. Such as surface coating, optoelectronics displays, and plastic manufacturing. Based on chemical makeup, organic makeup is generally classified into six different types. Read on to know what these are:
1.Azo pigments
2.Diazo pigments
3.Acid dye pigments
4.Phthalocyanine pigments
5.Quinacridone pigments
6.Miscellaneous polycyclic pigments
On the other hand, Inorganic pigments do not contain carbon and typically refer to metallic oxides and synthetic pigments. They may be naturally occurring and can be processed by simply cleaning, pulverizing, and mixing. Popular inorganic pigments include lead oxide red pigments, chromium oxide, green cadmium, yellow, and nickel titanate yellow.
Both organic and inorganic pigments can be used as natural synthetic and glass fiber dyeing. It is mainly used for printing, used for blended fabric dyeing, and dope dyeing. It is also used for the coloration of the metal, wood, stone, soap, detergent, colored pencils, PVC (PVC stands for polyvinyl chloride), rubber, paper, and other surfaces as print.
A good pigment should have minimum particle sizes of 20 to 40 micrometers. Pigments should have free mixing power. They should be chemically inert. They should have good resistance to chemicals and should be resistant to solvents. Furthermore, a good pigment has a good weight, light, and abrasion resistance.
Sometimes people misunderstand pigments with dyes. However, pigments are different from dyes. Dyes are colored substances that impart color to the substrate. Whereas on the other hand, pigments are discrete colored particles that give color to the substrate. Pigments are categorized separately because dyes create functional group bonds between substrate and dye.
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