L2 Controal of Mixing quality and cost.pptx happens to

Happy birthday to you

1. PROCESS AND QUALITY CONTROL IN SPINNING Control of Mixing Quality and Cost

2. Fibre Blending/ Mixing Three Basic Requirements for Fibre Blending/Mixing: Accurate information about fibre properties. Capable blending machinery. Consistent input fibre profiles.

3. Fibre Blending/ Mixing Traditionally 3 parameters for selection: Fibre Grade Fibre Length Fibre Fineness

4. Testing instruments for Fibre Properties HVI – High Volume Instrument AFIS – Advanced Fibre Information System

5. Important Fibre Properties Length and length uniformity. Short fibre content Micronaire (linear density/fibre maturity) Strength Trash (including type of trash) Moisture Fibre entanglement – neps Stickiness Colour grade Contamination

6. Important Fibre Properties

7. Important Fibre Properties

8. Important Fibre Properties

9. Results of poor fibr e quality

10. Results of poor fibr e quality

11. Results of poor fibr e quality

12. Results of poor fibr e quality

13. Results of poor fibr e quality

14. Results of poor fibr e quality

15. Application of HVI

16. Spinning Consistency Index (SCI)

17. Advantages of SCI in Fibre selection Relationship between SCI and Yarn Tenacity

18. Advantages of SCI in Fibre selection Reduce and simplify the number of warehouse categories. Control all measured HVI properties. Maintain day-to-day consistency of fibre properties. SCI based bale management ensures mixing consistency, thereby consistent yarn strength and spinning end breaks.

19. Advantages of SCI in Fibre selection Control between and within mix variations.