Pretreatment

What is Pretreatment?

                   Textile Pre-treatment, considered to be a series of cleaning operations starting from the raw state of fiber, and lays the foundation for the quality in textile processing.

Importance of Pretreatment

                   Pre-treatment have same importance as coloration and finishing of textile materials, about 60%-70% faults that appears in processing unit are due to inadequate pre-treatment process.

 Objectives of Pretreatment

                   The main objective of textiles Pre-treatment is to produce a clean and absorbent cloth or to pass the textile materials by standard procedure; so that, it may brought to the state; which can be dyed or printed and finished without any hurdle and displaying any kind of faults.

1.     Complete removal of all kinds of Impurities

2.     Removal of all Projecting/Protruding fibers (Fibers hanging on fabric surface due to spinning of carded yarn)

3.     To get uniform absorbency(pick up) throughout the fabric

4.     To get maximum whiteness

5.     To have minimum damage of fibers constituting fabric.

6.     To neutralize pH of the fabric, necessary for further process.

7.     To remove Natural impurities (Fats, natural pigments, mineral substances and seed particles).

8.     To remove Artificial impurities (Sizes, mineral oils, fungus, rust and coloring materials)

   Pretreatment:

          The sequences of process starting from inspection of gray fabric to mercerization is called pretreatment.

   Objective of pretreatment:

• ·        To get uniform absorbency(pick up) throughout the fabric
• ·        To get maximum whiteness
•       To remove Protruding or floating fibers (fibers hanging up on fiber surface)
•       To remove all kind of impurities completely
• ·        To have minimum damage to fabric
• ·        To neutralize the pH of the fabric that is necessary for further process
• ·        To make fabric ready for dyeing and printing.