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Fluorescent Direct Yellow 7GFF Dyes

Product info Type:Fluorescent Direct Yellow Dyes Product Name: Direct Yellow 7GFF Color Index: 96 CAS No.:61725-08-4 EINECS NO.:612-330-8 Molecular Formula:C9H9Cl3N2S
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Product Introduction

Fluorescent Direct Yellow 7GFF Dyes Product info:

TypeFluorescent Direct Yellow Dyes
Product NameDirect Yellow 7GFF
Color Index96
CAS No.61725-08-4
EINECS NO.612-330-8
Molecular FormulaC39H34N10O13S4.4[C4H12N+]
PropertiesOrange powder
Solubilitysoluble in water, slightly soluble in ethanol, insoluble in other organic solvents


Chemical Structure

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Application

Direct blended yellow D-RL is suitable for one-bath dyeing of polyester - viscosity-polyester - cotton blended fabrics, especially for one-bath one-step dyeing. It can also be used for silk and paper dyeing.


Dye Principle

Direct dyes have water-soluble groups such as sulfonic acid group (-SO3H) or carboxyl group (-COOH) arranged in a linear molecular structure. The aromatic ring structure is in the same plane, so the direct dye has a greater affinity for cellulose fibers, and it can be dyed directly in a neutral medium as long as the dye is dissolved in dry water.The dyes are adsorbed to the surface by the fibers in the solution, and then continuously diffuse to the amorphous region of the fibers, forming hydrogen bonds and van der Waals forces with the macromolecules of the fibers.Its derived dyes include direct lightfast dyes and direct copper salt dyes.


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FAQ

1.What is the business scope of the company?   We mainly deals in dyes, such as disperse dyes, reactive dyes, acid dyes, etc.2.What packaging methods are available for the product?   Our packaging methods include 25kg iron drum, 25kg woven bag, 25kg carton.3.What payment options are available?

   We have payment methods of L/C, Western Union, D/P, D/A, T/T, MoneyGram, you can choose any one.


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