Acid dyes have broad range shades, with good value, for piece dyeing wool and worsted goods. Fair to good leveling and light fastness.

Acid  Violet 7, Acid  Violet 7 Acid  Violet 7

Properties and Applications

Red light purple. Soluble in water chestnut, soluble in soluble fiber element, slightly soluble in alcohol, insoluble in other organic solvents. The strong sulfuric acid are chestnut, diluted into a deep red, with brown precipitation; In nitric acid solution for pink, then turned into yellow. In 10% of sodium hydroxide solution for wine red solution. Standard Light Fastness Soaping Persperation Fastness Oxygen bleaching Fastness to seawater Fading Stain Fading Stain Fading Stain ISO 4 3 5 3 4-5 AATCC 4-5 1-2 1-2 1 1 3-4

 

Acid  Violet 7, Acid  Violet 7

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