天堂网在线www,亚洲综合一区自偷自拍,亚洲日本一线产区二线产区,国产精品无码无需播放器

Acid dyes are a class of water-soluble dyes with acidic groups on the structure, which are usually dyed and printed under acidic conditions when applied. There are many varieties of acid dyes, complete chromatography, simple dyeing process, bright color, widely used in wool, silk, nylon and its mixed textile. It is also suitable for Leather, ink, paper, wood and other industries.

Commonly used acid dye process:

1. Strong acid dyes

Dye x%.

Sodium Sulphate Anhydrous 5-15%.

Sulfuric acid 1-3%.

2. Weakly acidic dyes

Dye x%.

Acidic leveling agent 0.5-3%.

Ammonium sulfate 2-5% (light, medium).

Glacial acetic acid 0.5-3% (dark).

Fixing agent 3-6%.