Textile Engineering Interview Questions and Answers
Question - 1 : - List Different Types Of Washing Faults?
Answer - 1 : -
- 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
Question - 2 : - List The Chemical Names Which Are Used In Washing Plant?
Answer - 2 : -
- Sodium mete bi sulphite
- per oxide
- Caustic soda
- (Soda ash
- LV (pocket clear)
- Bleach Kci
- Caustic potash
- Phosphoric acid
- Pumice stone
- Optical Brightening agent (3 types: Red, blue, yellow )
- Sodium hypo sulphite
- Sodium bi carbonate
- Enzyme (Acid, Neutral , SL enzyme)
- Acetic acid
- Softener
- Desizing agent
- Potassium per manganate
- Micro emulsion silicon
- Buffer, stabilizer, fixing agent, catanizer , resin, anti staining agent
- Dye for tinting or over dyeing
Question - 3 : - Can I Dye My Cotton/silk/linen Dress?
Answer - 3 : - 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.
Question - 4 : - Explain Different Types Of Wet Processing?
Answer - 4 : -
Normal wash / Garments wash/ Rinse wash, Pigment wash, Caustic wash, Silicon wash, Stone wash, Enzyme wash, Stone Enzyme wash, Acid wash, Bleach wash.
Question - 5 : - What Action Of Enzyme Is On Garments?
Answer - 5 : -
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.
Question - 6 : - Why Acetic Acid Is Used In Enzyme Bath?
Answer - 6 : -
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).
Question - 7 : - Explain Function Of Hydro Extractor Machine?
Answer - 7 : -
Function of Hydro extractor machine is to squeeze the garments for removing the excess water from the garments.
Question - 8 : - Described Machine Names Which Are Used In Washing Plant?
Answer - 8 : -
Washing machine ( No of M/c -10)
Dryer machine (No of M/c -10): gas dryer-09 and Steam dryer-01
Sample Machine (No of M/c-02)
Hydro (No of M/c -03)
Spray gun (No of M/c -02)
Question - 9 : - Explain Different Types Of Dry Processing?
Answer - 9 : -
Sand blasting, Hand scraping, whiskering, overall wrinkle, permanent wrinkle, broken and tagging, grinding and destroy, pp spray and pp sponging.
Question - 10 : - What Are The Purpose Of Washing?
Answer - 10 : -
The first purpose is to remove dirt, dust, impurities of garments thus achieve wash look appearance and softness.
The other purpose is to bring faded look, old look, tinted or over dyed affect.
To increase color fastness, wash fastness properties no possibility of further shrinkage of wash garments.