Why warp breakage occurred in sizing?

Warp breakage occurred in sizing due to :

1. Faulty warp: Faulty warp may be different types & in different causes.

2. Examples: Uneven, immature, nepped, slubby,hairiness.

3. Weak warp yarn:For less twist of yarn or broken fibres in yarn.

4. Faulty preparation of warp.

5. Repeating warp streaks: Less squeezing.

6. Size spots: Faulty mixing of size ingredients.

7. Shimmers of fibre.

8. Sandy size: Large size adhesive particles.

9. Hard sizing: Excessive concentration.

• Uneven sizing.

• Improper drying.

• Size dropping.

• Size sticking.

10. Crossing of warp ends: During sizing, the yarns overlap each other in any case.

11. Uneven &improper tension: If tension of beam is not const. rate, warp yarn breakage.

12. Defectivem/c parts:

• The surface of cylinder faulty.

• Yarn supply of back beam is not proper tension.

13. Faulty adjustment: Not proper adjustment of comb, separating rod &other parts.

14. Excessivem/c speed: If weak yarn,yarns will breakage due to high speed.

15. Insufficient care of m/c:If m/c parts are insert.

16. Unsuitable humidity: With humidity, the quality of yarn changes.

17. Workers or Tenter faults.