Normal Washing Process in Garments

Normal Washing Process in Garments 

Noor Ahmed Raaz
Specialized in Apparel Manufacturing
Owner and Editor in chief Textile Merchandising
Asst. Prof., Department of Textile Engineering
Atish Dipankar University of Science & Technology
Email: mnnabi@adust.edu.bd

Normal Wash:

Normal wash is most common and popular washing process in the apparel industry. After establishing the manufacturing process, garments need to wash for avoiding shrinkage and removing adhering dirt, dust, etc. from garments. Therefore, normal wash is almost mandatory from every buyer. In garments industry, normal wash is known as different names such as detergent wash, rinse wash, common wash, etc. Now I would like to discuss normal garments wash according to the industrial washing process.

Flow Chart of Normal Wash:

Every washing process should be maintained a working procedure. Here given common washing process in the garment industry.

Desizing

↓

Rinse Washing

↓

Softening

↓

Hydro extraction

↓

Drying

Washing Process of Normal Wash:

Load the garments in the machine. A Batch of 100 kg cotton garments in the normal wash process is described below-

1st Step: (Desizing)

• Lot size: 100 kg cotton garment.
• Water add @ L: R = 1: 5 of 500 – 600 Liter.
• Run the machine.
• Detergent add @ 1 mg / liter.
• Temperature: Supply steam to raise temperature @ 40°c – 60°c.
• Time: 15 to 30 minute.
• Drop the liquor.
• Cold wash.

2nd Step: (Rinse wash)

• Water add @ L: R = 1: 5 of 480 liter.
• Run the machine.
• Temperature: Raise temperature up to 40°c
• Time: 5 minute.
• Drop the liquor.

3rd Step: (Softening)

• Water add @ L: R = 1: 5 of 500 Liter.
• Run the machine.
• Silicon/Flax softener add @ 0.1 – 0.5 mg / liter.
• Temperature: Supply steam to raise temperature @ 20°c – 30°c.
• Time: 5 to 10 minute.
• Drop the liquor.

4th Step: (Hydro extraction)

Load the garments in hydro extractor machine.

• This machine remove excess water from the garments.
• Running time of hydro extractor is 2-3 minute.
  

  Hydro extractor Machine

5th Step: (Drying)

Unload from hydro extractor and load to dryer.

• Dry garments by gas dryer or steam dryer.
• Running the machine.
• Temperature: 70°c – 80°c.
• Time: 20 to 30 minute.