Direct Blue 71 CAS No.4399-55-7

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25 Kilogram

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Product Description

Product Attributes
Supply Ability & Additional Information
Packaging & Delivery

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Overview

Product Attributes

Model No.: Dyrect Fast Blue B2RL

Supply Ability & Additional Information

Packaging: 25Kgs/Carton

Packaging & Delivery

Selling Units:: Kilogram

Package Type:: 25Kgs/Carton

Dyrect fast Dyes are applicable to cotton, rayon and linen, with good light fastness.

Dyrect	C.I. Direct	CAS No.	Characteristics
Fast Blue B2RL	Blue 71	4399-55-7	Dull Blue

Properties and Applications

Dark blue. Blue gray powder. Soluble in water for blue, solubility of 10 g/L (60 ℃), 20 g/L (97 ℃), slightly soluble in soluble fiber element, soluble in ethanol, insoluble in other organic solvents. The strong sulfuric acid for blue to to black, red after diluted purple precipitation. Dye with strong hydrochloric acid solution for blue precipitation; Add thick sodium hydroxide solution for red light purple, have precipitation. Cellulose fiber of dyeing, dye devoured the gender is good, the temperature in the 80-100 ℃, affinity is the largest. Discharge sex is very good. In dye bath of copper ions in tiny change color (4 ~ 5 level), meet iron ion colored light basically unchanged (level 5). SDC classification for a class B. Cotton neutral white was a category 4, viscose neutral white for 4 ~ 5 level, cotton and viscose alkaline white are 5 levels. 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.

Standard	Acid Resistance	Alkali Resistance	Light Fastness	Soaping		Water
Standard	Acid Resistance	Alkali Resistance	Light Fastness	Fading	Stain	Fading	Stain
ISO	4	4-5	5	2		2
AATCC	2	4	4-5	1-2		2

Product Categories : Dyes > Direct Dyes

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