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Acid dyes are water-soluble dyes with acid groups on the structure. They are usually dyed and printed under acidic conditions when applied. Acid dye variety, complete chromatography, simple dyeing process, bright color, widely used in wool, silk, nylon and blended products. It is also suitable for leather, ink, paper, wood and other industries with increasing demand.
Commonly used acid dye process:
1、Strong acid dye
Dye x%
Tin powder 5-15%
Sulfuric acid 1-3%
2、Weak acid dye
Dye x%
Acid levelling agent 0.5-3%
Ammonium sulfate 2-5%(Light and medium))
Glacial acetic acid 0.5-3%(Dark)
Acid color fixing agent 3-6%
■ It is recommended that the user should use Abag SET as the acid levelling agent on wool fibers, ER as the double macro acid levelling agent on other fibers, and FRN as the double macro acid coloring agent.
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