Common textile auxiliaries and their functions
time:2025-06-11 click:1) Penetrant: Reduce the surface tension of the solution, making the fiber easy to be wetted and penetrated.
2) Detergent: Play a washing role, making it easy to remove dirt on the fabric, and often used as a bleaching aid.
3) Caustic soda (NaOH): A strong alkali, used as a cotton cloth scouring agent, and can also be used as a stripping aid. It should be neutralized with acid before washing.
4) Soda ash (sodium carbonate Na2SiO3): Used as a water softener, T/C fabric scouring aid and active dye fixative.
5) Baking soda (sodium bicarbonate NaHCO3): Can be used as an active dye fixative.
6) Trisodium phosphate: Na3PO4 acts as a water softener.
7) Hexaphosphate: Acts as a water softener.
8) Sodium silicate (Na2SO4): Used as a cotton cloth scouring aid, and can also be used as a stabilizer for hydrogen peroxide bleaching.
9) Hydrogen peroxide (H2O2): bleaching agent, bleaching fabrics, and can also be used as a deoxidizer.
10) Sodium sulfite (Na2S2O3): used as a cotton fabric scouring aid to prevent cotton fabrics from being brittle, and can also be used as a residual oxygen neutralizer and dechlorinating agent.
11) Sodium sulfide (Na2S): a dyeing aid for sulfide dyes, which fully reduces and dissolves sulfide fuels.
12) Sodium hypochlorite (NaClO): used as a bleaching agent, and can also be used for stripping and washing tanks.
13) Salt (NaCl) or sodium sulfate (Na2SO4): used as a dyeing accelerator for direct active dyes and sulfide dyes, which can increase the dyeing percentage of dyes.
14) Insurance powder (NaS2O4): a strong reducing agent, which has the effect of stripping and reducing cleaning.
15) Dispersant (or diffuser): used as a dyeing aid for dispersed fuels, so Disperse dyes are evenly dispersed in the dye liquor to ensure the stability of the dye liquor.
16) Glacial acetic acid (HAC): used as a disperse dye dyeing auxiliary to adjust the pH value and as a neutralizer for alkali.
17) Ammonium sulfate [(NH4)2SO4]: used as an anti-alkali agent for disperse dyes, and can also play a role in jumping the pH value.
18) Leveling agent: can make the dyes dye evenly and achieve a leveling effect.
19) Oxalic acid: can wash away rust stains on fabrics.
20) Fixing agent: (fixing agent Y or M) makes direct dyes firmly attached to the fiber, thereby improving the color fastness.
21) Softener: combines with the fiber or adsorbs on the fiber surface, plays a wetting role, and improves the feel of the fabric.
22) Pingpingjia O: used as a leveling agent for direct and reactive dyes.
23) Varnish spirit: removes oil stains on the fiber.