Desizing agents are used to remove sizing agents applied to yarns during the weaving
process.
Sizing agents improve the weaving process but need to be removed before
dyeing.
Amylases, pectinases, and amylase-based desizing agents.
Scouring is the process of removing natural waxes, oils, and other impurities from the fibers or fabric. Scouring agents facilitate the removal of these impurities.
Alkali-based scouring agents, detergents, and surfactants.
Bleaching agents are used to whiten or lighten the color of fibers by removing natural coloration, residual dyes, and impurities.
Hydrogen peroxide, sodium hypochlorite, and peracetic acid.
Mercerization is a treatment that improves the luster, strength, and dye affinity of cotton fibers. Mercerizing agents are used in this process.
Sodium hydroxide (caustic soda) is commonly used for cotton mercerization.
Wetting agents improve the wetting and penetration of water into the fabric, aiding in the even distribution of subsequent processing chemicals.
EDTA (ethylene diamine tetraacetic acid) and DTPA (diethylenetriaminepentaacetic acid)Non-ionic and anionic surfactants..
Sequestrants or chelating agents are used to control metal ions in water, which can otherwise interfere with the performance of other chemicals.
EDTA (ethylene diamine tetraacetic acid) and DTPA (diethylenetriaminepentaacetic acid).
Buffering agents help maintain a stable pH level during the pretreatment process, ensuring optimal conditions for subsequent chemical treatments.
Acetic acid, sodium acetate.
Biopolishing enzymes are used to improve the surface properties of cotton fabrics, such as softness and appearance.
Cellulases.
