Thin layer chromatography (TLC), paper chromatography, column chromatography, gas chromatography (GC) and high pressure liquid chromatography (HPLC) methods

The basic use of detergents is used for civil and industrial purposes. The main component of detergent is surfactant, which is an organic compound containing two parts of hydrophilic group and lipophilic group in the molecular structure.

Darkening agent is an auxiliary agent used to increase the dyeing depth of disperse dyes on polyester fabrics. Darkening agents can be divided into two types, one is the darkening agent used in the dyeing process of the fabric, and the other is the darkening agent used after the fabric is dyed.

Pretreating auxiliaries, dyeing auxiliaries, after-treatmeng auxiliaries, other auxiliaries.

Dyes are substances that can attach a certain color on the fibers and is not easy to fall off, discolored. Dyes are usually dissolved in water, and a portion of the dye requires a media to make the dye can be adhered to the fibers. Archaeological data shows that dyeing technology has more than five ......