the introduction of organic pigments

Refers to a series of paint colors and other characteristics, a class

made up of organic pigments. Pigments features include Fast, resistance to

flooding, acid and tribasic lead sulphate  alkali resistance, organic solvents, heat, crystal

stability, dispersion and hiding power. Organic pigments and dyes

difference is that it is colored objects with no affinity only by adhesive

or film material will be attached to the surface of organic pigments, or

mixed inside the object, the object colored. Intermediates required for its

production, production equipment and synthetic dye production processes are

similar, it is often the organic pigment in the dye industry to organize

production. Organic pigments and inorganic pigments generally compared to

typically have high tinting strength, easy to grind and disperse particles,

not precipitation, colors are more vivid, but the Light, heat, weather and

poor performance. Organic pigments commonly used in inks, paints, rubber

products, plastic products, stationery and  calcium zinc stabilizer supplies and other materials

coloring. Common varieties currently on the market are the following

categories:
Molecular structure of azo pigments containing azo group (-N = N-) water-

insoluble organic compounds in the organic pigment is most varieties and

yield the largest category. Azo pigment is an aromatic or heteroaromatic

amine obtained by diazotization of an aromatic diazo component and then

with acetyl amine 2 - naphthol, pyrazolone 2 - hydroxy - 3 - naphthoic acid

or 2 - hydroxy- -3 - naphthoyl aromatic amines by coupling a coupling

component, to form water-insoluble precipitate, which is generally an azo

pigment. The synthetic method and the same dyes, but the latter is water

soluble. Azo pigments generally used as orange, yellow and red pigments

such as: Permanent Orange RN (CI Pigment Orange 5), golden red (CI Pigment

Red 21), Benzidine Yellow G (CI Pigment Yellow 12). To improve the light

fastness, heat resistance, resistance to organic solvents and other pigment

properties, by condensation of two molecules of an aromatic diamine as

macromolecules. The pigment thus prepared is called macromolecules such as

pigments or condensed azo pigments: macromolecules Orange 4R (CI Pigment

Orange 31), molecules of red R (CI Pigment Red 166).
Lake water-soluble dye (such as acid dyes, direct dyes, basic dyes, etc.)

generated by the action of a precipitating agent and a water-insoluble

pigment. Its shade more brilliant, chromatography than the whole, low

production costs, than the original water-soluble dyes high light fastness.

Precipitant mainly inorganic salts, acids, carrier. Inorganic salt

precipitate is barium, calcium chloride, manganese sulfate, water-soluble

dyes as precipitating agent and the carbon black powder  reaction of water-insoluble barium,

calcium, manganese salts such as: Permanent Red F5R (CI Pigment Red 48: 2),

Lake Red C (CI Pigment Red 53:1). Is the use of phosphoric acid

precipitation - molybdic acid, phosphoric acid - acid, tannic acid, etc. as

a precipitating agent reacts with the water-soluble alkali insoluble dye

lakes such as: Fast Rose Lake (CI Pigment Violet 1), emitted light violet

(CI Pigment Violet 3). The carrier is a water-soluble dye deposited

precipitate aluminum hydroxide, barium sulfate, etc. on the surface of the

support, to form water-insoluble precipitate neutral colors such as: acid

yellow lake (CI Pigment Orange 17), light blue lake lake