The main ingredients of the fixing agent are diethylenetriamine, ammonium chloride, propylene glycol, dicyandiamide, ethylene glycol, epichlorohydrin, glacial acetic acid, and water. Fixing agent is one of the important additives in the printing and dyeing industry. It is an additive used to improve the color fastness of dyes on fabrics to moisture treatment. It can form insoluble colored matter with dyes on fabrics to improve the color's fastness to washing, perspiration, and sometimes sunlight.
Commonly used color-fixing agents include cationic quaternary ammonium salts, such as cetylpyridinium chloride and cetylpyridinium bromide; amine-aldehyde resin type dicyandiamide formaldehyde primary condensate (color-fixing agent) Agent Y, M); polyamine condensate (silk fixing agent LA); phenolic condensate (cross-linking fixing agent DE); cross-linking fixing agent (IndosolCR); reactive dye fixing agent KS, and for nylon Phenol sulfonate formaldehyde condensation products that replace tannin as color-fixing agents on (polyamide) fabrics, etc.