Textile Pre-Treatment

 

Textile Pre-Treatment

Textile pre-treatment is the series of cleaning operations and proper setting for subsequent processes. Textile pre-treatment processes consist of Chemical pre-treatment process and Mechanical pre-treatment process.

Chemical pre-treatment process: Chemical pre-treatment process may be broadly defined as a procedure mainly concerned with the removal of sizing materials, all impurities such as hemi-cellulose, pectin, wax, fat and oil as well as destroying natural colour from the textile materials.Chemical pre-treatment process includes Desizing, Scouring, Bleaching and Mercerization.

 
Mechanical pre-treatment process: Mechanical pre-treatment process defined as the removal of
hairiness/projecting fibres from the textile materials and heat treatment processing to achieve best dimensional stability with correct finished fabric GSM in case of blended fabrics with lycra fiber. Mechanical pre-treatment process contains Singeing, Heat setting. Pre-treatment is carried out before the dyeing, printing and finishing.

Purpose of pretreatment:

•   To remove the projecting fibres/hairiness from the textile materials.
•   To remove the sizing materials from the textile materials. 
•   To remove hemi-cellulose, pectin, wax, fat, oil from the cellulosic fabrics.
•   To increase the lusture of the treated materials. 
•   To increase the absorbency of the treated materials. 
•   To increase the dye ability of the treated materials. 
•   To prepare the textile materials for subsequent processes.