Shandong, China
Business Type:
Trading Company
Main Products:
Number of Employees:
4
Year of Establishment:
2015-04-03
Management System Certification:
ISO 9001, ISO 14001
Average Lead Time:
Peak season lead time: one month
Off season lead time: one month
OEM/ODM Service
Sample Available

Direct Blue 71, Direct Fast Blue 2rl, Direct Fast Blue B2r manufacturer / supplier in China, offering Direct Fast Blue B2rl, Direct Blue 71, Disperse Black Exsf 300%, Direct Black 17, Direct Black D, Direct Black SD, Direct Grey D and so on.

Gold Member Since 2018
Audited Supplier

Direct Fast Blue B2rl, Direct Blue 71

Min. Order / Reference FOB Price
300 kg US $2/ kg
Port: Tianjin, China
Production Capacity: 2000mt/Year
Payment Terms: L/C, T/T, D/P, Western Union, Paypal, Money Gram
CAS No.: 4399-55-7
Colour: Blue
Appearance: Powder
Usage: Paper, Ink, Leather, Textile
Application Material: Cotton, Viscose, Silk, Leather and Pulp Color.
Name: Direct Blue 71

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Basic Info.

Model NO.
100%
Content
100%
C.I.No.
C.I.34140
Molecular Formula
C40h23n7na4o13s4
Molecular Weight
1029.87
CAS
4399-55-7
Trademark
hongwei
Transport Package
25kg/Drum, 25kg/Bag
Specification
CE SGS
Origin
Shandong
Name:C.I.Direct Blue 71,C.I.34140

Molecular Structure: trisazo class
 
C.I.Direct Blue 71,C.I.34140,CAS 4399-55-7,1029.87,C40H23N7Na4O13S4,Direct Fast Blue 2RL,Direct Fast Blue B2R,Direct Fast Blue B2RL,Direct Navy BlueL-3RB,Sirius Blue S-BRR,Solophenyl Blue GL

Molecular Formula:C40H23N7Na4O13S4

Molecular Weight: 1029.87

CAS Registry Number:4399-55-7

Manufacturing Methods : 3-Aminonaphthalene-1,5-disulfonic acid diazo, and Naphthalen-1-amine first coupling, its product to diazo, and 8-Aminonaphthalene-2-sulfonic acid second coupling, again diazo, in alkaline conditions and 7-Amino-4-hydroxynaphthalene-2-sulfonic acid third coupling.
 
Widely used in viscose fiber dyeing, also used in viscose/PVA blends, cotton, and the carpet of dyeing and printing. Also used in leather, paper, soap, cheese, protein and formaldehyde resin color.
 
StandardAcid ResistanceAlkali ResistanceLight FastnessSoapingWater
FadingStainFadingStain
ISO44-552 2 
AATCC244-51-2 2 

Direct Fast Blue B2rl, Direct Blue 71

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