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必应染料-您身边的染料专家

Direct Black 91

Name:C.I.Direct Black 91,C.I.30400

Molecular Structure: trisazo class

C.I.Direct Black 91,C.I.30400,CAS 6739-62-4,902.69,C38H25N8Na3O13S,Direct Black RL,Cuprophenyl Black RL,Direct Fast Copper Black AL

C.I.Direct Black 91,C.I.30400,CAS 6739-62-4,902.69,C38H25N8Na3O13S,Direct Black RL,Cuprophenyl Black RL,Direct Fast Copper Black AL

Molecular Formula:C38H25N8Na3O13S

Molecular Weight: 902.69

CAS Registry Number:6739-62-4

Manufacturing Methods : 3,3′-Dimethoxylbenzidine double nitriding, First coupled with 2-Hydroxybenzoic acid, coupled with the first again with 2-Amino-5-nitrobenzoic acid diazo, in acid conditions and 7-Amino-4-hydroxynaphthalene-2-sulfonic acid and coupled the product of coupling.

Properties and Applications: red light black. Black powder. Soluble in water, the solution for the red light black, hard to stability. In dyeing of copper (a slight change color in a dark colored light iron ion. Used for cotton, viscose and their blended fabric dyeing, can be in cotton or viscose fabric direct printing can and dispersal dyes with bath dyeing.

Standard Acid Resistance Alkali Resistance Light Fastness Soaping Water
Fading Stain Fading Stain
ISO 4 5 6-7 4-5 5
AATCC 7 5

List of Suppliers:

Classic Direct Black 91 370% (Classic Dyestuffs Inc)

Cuprofix Black CRL Conc (Classic Dyestuffs Inc)

Cuprophenyl Black RL 100%(Classic Dyestuffs Inc)

Direct Black RL 370% ( Global Colors Inc. )

Direct Black RL 370%(Classic Dyestuffs Inc)

Direct Fast Copper Black AL (Colorom SA)

Intramet Black GM Special (Classic Dyestuffs Inc)

Permalite Black RL 370%( Standard Dyes )

Sirius Black CRL (Classic Dyestuffs Inc)

Tertrocuivre Black R(Yorkshire Group pic)

Vilmacupro Black RL( Vilmax SA )


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