Pigment wash for cotton fabric

Pigment Wash: 

Pigment wash generally doing on pigment dyed or printed Garments by pigment washing technique. 
Pigment wash is required for the following reasons:

• To fading affect/old looking affect on Garment and also seam area.
• For soft feeling to wear the garment after purchasing.
• To achieve the buyer washing standard.
• To increase the colour fastness & rubbing fastness. 

Pigment washed garment

Washing Process of Pigment Wash: 
The pigment washing process of batch of 80 kg Twill/canvas Garments are described below:

First Step:

1. Lot size: -...................... 80 kg Twill/Canvas Garment.
2. Add water @ L: R = 1: 8.............. 640 Litre
3. Machine Running.
4. Add Caustic soda (NAOH)..... @ 0.8 gm / liter ............ 512 gm.
5. Add Soda Ash (Na2Co3) ........@ 1.50 gm / litre........... 960 gm.
6. Add Detergent ........................ @ 0.8 gm / litre ............ 512 gm.
7. Temperature........... 50°c to 60°c.
8. Time (Depend upon the shade) ....... 20 to 60 mts.
9. Drop the liquor.
10. Wash 1 time by hot wash for 5 mts at the temperature 50°c.
11. Wash 1 time by cold water for 5 mts

Second Step :

1. Add water @ L : R = 1: 6 ......... 480 litre.
2. Washing machine running
3. Add Acetic Acid (for pH 4.5 -5.5) @ 0.5 gm / litre ............. 240 gm.
4. Add Flax softner ... . @ 0.6 gm / liter........... 288 gm.
5. For more slippery hand feel use silicon -@ 0.4 gm / litre.....192gm.
6. Time................................... 15 to 25 mts.
7. Drop the liquor.
8. Unload the Garments on trolley.

Third Step: Hydro Extractor Machine. 
Hydrocxtraction the garment to remove excess water from the Garment. Time required about 2 -4 minutes. 

Fourth Step: Steam Dryer / Gas Dryer.

1. Load on steam dryer -50 kg
2. Running the machine
3. Temperature -60°c -70°c
4. Time -40 -50 mts for dry.
5. Time -10 -15 mts for cold dry.

or

1. Load on gas dryer -50 kg,
2. Running the machine
3. Temperature: -70°c -85°c for dry.
4. Time: -30 -35 mts for dry.
5. Time: -10 -15 mts for cold dry.

Fifth Step: Delivery
After drying garments go to quality section and check the garment, good quality garment will be delivery and Deep shade again rewash, other quality Garment rectify then delivery.