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Introduction and Process of Migration Resistant Pigment -- Benzidine Yellow G
Release time:
2024-01-02
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With the upgrading of market demand and the development of high-performance pigments, higher requirements have been put forward for the color light, viscosity, transparency, fluidity and various resistances of classic pigments. In view of the continuous improvement of market requirements, our company has developed an improved organic pigment benzidine yellow G, which has bright color light, high tinting strength, good migration in plastic applications, low viscosity, good fluidity and stable storage when applied to ink products.
There are many kinds of organic pigment yellow,mainly includesMainly includes benzidine yellow pigment,Isoindolinone pigments, benzimidazolone pigments, etc.Products of our company---Benzidine YellowGPigment Yellow12
Benzidine Yellow Series Organic PigmentsEarly.In20Century30the end of the decade,40In the early years of the market, and the rapid development of benzidine yellow.GMakeForA classic organic pigment, color hasgreen lightand red light, benzidine yellowGSlightly soluble in toluene, insoluble in water. Good solvent resistance.Benzidine YellowGGood tinting strength and hiding power/Transparency, and the product is high.
Benzidine yellow is mainly used for ink, rubberplastic braized wire drawing,PlasticColor Masterbatch and FertilizerThe coloring. Also used in paint and paperZhang, and textile printing pastethe coloring,But since benzidine yellowGThe temperature resistance effect is not good,In200~240C, its application is limited to a certain extent.
The synthesis method of benzidine yellow pigment is diazotization first, and then coupling. Its diazo component is3,3'-Dichlorobenzidine,Will3,3-Dichlorobenzidine(The English abbreviation isDCB)withHydrochloric acid (HCl) and watermixed beating, Cool down0-5 ℃,Join(Sodium nitrite)NaNO2Made into diazo liquid for later use,In the process of diazotization reaction, sodium nitrite should be kept slightly in excess, and insufficient dosage of sodium nitrite will also cause self-coupling,（Excess nitrous acid removal with sulfamic acid），Decolorization and filtration of activated carbon; Acetylacetanilide after diazonium salt and acid precipitation (AAA) Emulsion, inPH=6Coupling, coupling reaction is complete, heated90℃Filtration, washing, drying
In recent years, with the upgrading of market demand and the development of high-performance pigments, the color, viscosity and transparency of classic pigments have been improved.degree of mobilityand various kinds of patience,In view of the continuous improvement of market requirements, our company has developed an improved organic pigment, benzidine yellow.GThe product has bright color, high tinting strength, good migration in plastic applications, and is applied to ink products with low viscosity, good fluidity and stable storage.
Key words:
Pigments, Organic Pigments, Benzidine Yellow G,Pigment Yellow 12, migration-resistant pigment, plastic woven drawing pigment
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