Bleach Wash | Bleaching Wash Process of Garments

Bleach Wash:

Bleach wash or light stone wash refers to light blue shades of denim. The additional step is bleaching to stone wash. This bleaching is usually carried out by strong oxidizing agents. In industry, most widely used chemicals are sodium hypo-chlorite, calcium hypo-chlorite, hydrogen per oxide and potassium permangate.

Bleach washed Jeans

 Bleach Wash Process of Garments:
A process of bleach wash of 60 kg batch of Denim Long Pant as mentioned below:

First Step: Pre-treatment/Desizing

1. Batch size....................... 60 kg Denim Long Pant.
2. Add water @ L: R = 1: 9.............. 540 litres.
3. Start the machine.
4. Temperature.................... 60°c
5. Add Desizing agent @ 0.6 gm / litre ............ 324 gm.
6. Add Detergent / Antistain @ 1 gm / litre..... 540 gm.
7. Time................................ 15 to 25 mts.
8. Drop the liquor.

Second Step: Hot Wash

1. Add water @ L: R = 1: 9.............. 540 litres.
2. Temperature....................................... 60°c.
3. Time................................................... 5 mts.

Third Step: Bleaching

1. Add water @ L: R = 1: 8.............. 480 litres.
2. Machine running.
3. Add bleaching powder (k.c.i) @ 10 gm/litre.. 4800 Gms.
4. Add soda ash @ 5 gm/litre ............................... 2400 Gms.
5. Temperature............................................................ 60°c.
6. Time (Depend upon the shade).................... 12 to 15 mts.
7. Drop the liquor.
8. Rinse twice, each 3 minutes.

Fourth Step: Neutral Wash

1. Add water @ L: R = 1: 9.......................... 540 litres.
2. Add sodium hyposulphite @ 3 gm/litre ....... 1620 Gms.
3. Temperature ......................................................... 40°c.
4. Time (Depend upon the shade).............. 10 to 12 mts.
5. Drop the liquor.
6. Rinse one.

Fifth Step: Soft Wash

1. Add water @ L: R = 1: 8.............. 480 litres.
2. Add Acetic Acid @ 0.6 gm/litre ..................... 288 Gms.
3. Cationic softner @ 1 gm/litre ........................ 480 Gms.
4. Time................................ 5 mts.
5. Drop the liquor.
6. Unload the garments to trolley.

Sixth Step: Hydroextractor Machine
Hydroextraction the garment to remove excess water from the washed garments.

Seventh Step: Drying Machine

1. Load 40 kg garments
2. Set temperature ................ 75°c to 85°c.
3. Time ......................... 35 to 40 mts.
4. Time ..................... 10 minutes in cold dry.

Eighth Step: Delivery  

After quality checking garment will be delivery.