1. List different types of washing faults?

★ Color shade variation
★ Crease marks
★ After wash hole
★ Very dark and very light
★ Bleach spot
★ Bottom hem and course edge destroy
★ Running shade
★ Over blasting/low blasting
★ Over grinding/low grinding
★ Bad smell due to poor neutralization
★ Poor hand feel
★ To high hairiness
★ Poor brightness
★ High or low effect/abrasion on garments
★ Spot on garments
★ Out of range/ level of ph value of garments

2. List the chemical names which are used in washing Plant?

(i) Sodium mete bi sulphite
(ii) per oxide
(iii) Caustic soda
(iv) Soda ash
(v) LV (pocket clear)
(vi) Bleach Kci
(vii) Caustic potash
(viii) Phosphoric acid
(ix) Pumice stone
(x) Optical Brightening agent (3 types: Red, blue, yellow )
(xi) Sodium hypo sulphite
(xii) Sodium bi carbonate
(xiii) Enzyme (Acid, Neutral , SL enzyme)
(xiv) Acetic acid
(xv) Softener
(xvi) Desizing agent
(xvii) Potassium per maganate
(xviii) Micro emulsion silicon
(xix) Buffer, stabilizer, fixing agent, catanizer , resin, anti staining agent
(xx) Dye for tinting or over dyeing

3. Can I dye my cotton/silk/linen dress?

Possibly, but keep in mind: 1, the thread and zipper will remain the original color; 2. the trim issue (see above); 3. the stress of the warm-water-and-agitation process.

4. Explain different types of wet processing?

Normal wash / Garments wash/ Rinse wash, Pigment wash, Caustic wash, Silicon wash, Stone wash, Enzyme wash, Stone Enzyme wash, Acid wash, Bleach wash.

5. What action of Enzyme is on Garments?

The action of enzyme during enzyme wash, it hydrolysis the cellulose. At first it attacks the having projecting fiber and hydrolyzed them. Then it attacks the yarn portion inside fabric and partly hydrolyzed the yarn portion and faded affect is produced.

6. Explain softening process of silicon Wash?

Lot weight (approx 145 pies) ............ 70 kg
Add water @ L : R = 1 : 8 .............. 560 Liters
Add Acetic Acid @ 0.6 gm / liter ............ 336gm
Cationic Softener @ 1 gm / liter.............. 560 gm
Silicon (ME) @ 0.5 gm / liter ................ 280 gm
Temperature.......................... 40°c
Time................................ 15 to 20 minutes
Drain the bath
Then unload the garments on trolley.

7. Why Acetic Acid is used in Enzyme bath?

Acetic acid is used in enzyme bath to control the pH of wash bath and for proper action of enzyme. (To controlling the pH of enzyme because enzyme works at acidic pH).

8. Explain Desizing process of silicon Wash?

Desizing process of silicon Wash:
Lot weight (approx 145 pies) ............ 70 kg
Add water @ L: R = 1: 10.............. 700 Liter
Machine running
Add Desizing agent @ 0.6 gm / liter ............ 420 gm
Add Detergent @ 0.5 gm / liter.................... 350 gm
Temperature.......................... 50°c
Time...............................10-20 minutes
Drop the liquor
Rinse one time 3 minutes

9. Explain function of Hydro extractor machine?

Function of Hydro extractor machine is to squeeze the garments for removing the excess water from the garments.

10. Described machine names which are used in washing plant?

1) Washing machine ( No of M/c -10)
2) Dryer machine (No of M/c -10): gas dryer-09 and Steam dryer-01
3) Sample Machine (No of M/c-02)
4) Hydro (No of M/c -03)
5) Spray gun (No of M/c -02)

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