Pretreatment auxiliaries in the textile industry are specialty chemicals used before dyeing or finishing to prepare fabrics so that subsequent processes are more efficient, uniform, and reproducible.
Purpose
The main purpose of pretreatment auxiliaries is to remove impurities and optimize the fabric surface, ensuring good wettability, cleanliness, and fiber accessibility. Proper pretreatment directly affects dye uptake, shade consistency, and final fabric quality.
Benefits of Proper Pretreatment
Cleaner and more uniform fabric surface
Improved dye penetration and color uniformity
Reduced dyeing defects (spots, streaks, shade variation)
Lower chemical consumption in later processes
Improved process stability in hard or recycled water
Enhanced production efficiency and fabric quality
Alkali-resistant soaping agent
Acid soaping agent
High-efficiency degreaser
Leuco dispersant
Acid scouring agent
Alkaline scouring agent
Softening powder CK
Oxygen bleaching stabilizer