Organic pigments yellows

Figure 1.7 Thermal UV profile of (a) 1 1 mixture of organic pigment yellow (2-nitro-p-toluidine coupled with acetoacetanilide and inorganic pigment PY 34 (lead chromate), (b) PB 15.4 copper phthalocyanine (beta form) PG 7 polychlorinated copper phthalocyanine (14-16 chlorine atoms)...

FLUORINECOMPOUNDS,ORGANIC - FLUORINATED AROMATIC COMPOUNDS] (Volll) Cl Pigment Yellow 24 [475-71-8... 

Metallic Powders. These are usually either aluminum or bronze flakes and vary ia shades from silver to gold, depending on the composition of the metal used. The silver powders can also be toned with organic pigments to produce golds or copper shades usiag transparent yellow or red pigments. 

Anthrapyrimidines. Anthrapyrimidines are yellow vat dyes and exhibit good fastness. Cl Vat Yellow 20 [4216-01 -7] (5) (Cl 68420) is the only example that is currendy produced. The production method is shown in the following scheme. This compound is also used as a high performance organic pigment (Cl Pigment Yellow 108). 

Other chemical types of high-performance organic pigments are exemplified by the tetrachloroisoindolinone 222 (C. I. Pigment Yellow 110) and the dioxazine 223 (Carbazole Violet, C. I. Pigment Violet 23). Considerable research has been carried out in an attempt to exploit the potential of metal complex chemistry to provide high-performance pig-... 

Disperse yellow dyes, 9 412 Dispersibility, of organic pigments,... 

Fig. 87 Systems containing organic pigments (left) and Chrome Yellow (right). Determination of resistance to acids with 1 N sulfuric add.

Commonly, blends of organic pigments with suitable inorganic pigments are used, such as nickel titanium yellow, chrome titanium yellow, bismuth-molybdenum-vanadium-oxide, or iron oxide. 

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