Direct Dyes Black 1 for Paper Dyeing

• Customization: Available
• CAS No.: 003-68-7
• Colour: Black
• Model NO.: 31595
• Appearance: Powder
• Usage: Paper, Ink, Leather, Textile, Food, Plastic, Paint
• Application Material: Wool
• Name: Direct Black 1
• Content: 100%
• C.I.No.: 31595
• Related Name: -
• Light Fastness: 3
• Washing Fatness: 1-2
• Rubbing Fastness: 4
• Transport Package: Bag
• Trademark: emperor
• Origin: China
• HS Code: 3204140000
• Production Capacity: 80000t/Y

Product Description

Product Name: Direct Black 1
C.I. No.: 31595
CAS No.: 8003-68-7
Molecular Formula: C22H14N6Na2O9S2
Molecular Weight: 784.73
 
Shade: Black.
 
Direct Direct Black 1 Physical Properties and light fastness, solubility.

Direct Black 1
Dyeing depth %	2
Insolubles %	0.15
Light Fastness	3
Washing Fatness	1-2
Rubbing fastness(dry)	4
Rubbing fastness(wet)	3

Manufacturing Methods : 4-Nitrobenzenamine diazo, and 2-Amino-4-methylanisole matches, will the nitro reduction for amino, product double nitriding, first and 5-Aminonaphthalene-2-sulfonic acid and 8-Aminonaphthalene-2-sulfonic acid coupling, and then in alkaline conditions and 6-Amino-4-hydroxynaphthalene-2-sulfonic acid  coupling.
 
Note: The data contained here are based on our current knowledge and experience. It is the responsibility of user to test our products before the final application.


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