Direct Dyes Yellow 27 for Paper Dyeing

Product Description

Product Name: Direct Yellow 27
C.I. No.: 13950
CAS No.: 10190-68-8
Molecular Formula: C25H20N4Na2O9S3
Molecular Weight: 662.63
Relative Name:
Direct Fast Yellow 5GL,Direct Fast Brilliant Yellow 5G,Direct Fast Brilliant Yellow 5GL,Direct Brilliant Yellow 5GL,Direct Brilliant Yellow L-4G
Shade: colourful green light yellow. Yellow powder. 
 
Direct Yellow 27 Physical Properties and light fastness, solubility.

Direct Yellow 27
Solubility at 90 C	50g/l
Insolubles %	0.15
Light Fastness	5
Washing Fatness	2
Perspiration	3
Soap Fading	1-2

 
Direct yellow 27 Properties and Applications:
Soluble in water for lemon yellow, also soluble in soluble fiber element, soluble in ethanol, slightly soluble in benzene and carbon tetrachloride for orange, insoluble in other organic solvents. The strong sulfuric acid dyes for goldenbrown, diluted becomes shallow; In nitric acid solution for colourful yellow; In strong hydrochloric acid partly dissolved for the golden light orange. The dye solution to join strong hydrochloric acid has golden precipitation; Add thick sodium hydroxide solution with gold orange precipitation. Water-soluble is poorer. Copper ions in dyeing color shade basic unchanged, encounter iron ion colored light tiny have change (4 ~ 5 level), classification of A class SDC. Cotton and viscose neutral white are level 2, white alkaline are 4 levels.
Used for cotton and glue dyeing and printing. Can also be used for silk, wool, polyamide fiber and its blended fabric dyeing, also used in leather and pulp color.
 
Package, 25KG/DRUM, CARTON BOX, BAG
 
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.

EXHIBITIONS PHOTOS:




FACTORY PHOTOS: