SIM Group uses cotton fibers to produce low count yarns between 7-20 Ne. They use different types of raw cotton and wastage from various countries in their production. The main raw cotton brands used are Indian, Tanzanian, and Brazilian cotton. The document discusses the different raw materials and wastages used, including doffing-1, doffing-2, roving crash, pneumafil, and flat strip. It also provides details on the country of origin, weight, and cost of various raw cotton types. Finally, it outlines some of the processing advantages and problems associated with cotton from different origins.

1. RAW COTTON QULITY FOR SPINNING
MILLS

2. Prepared By : Mazadul Hasan sheshir
ID: 2010000400008
13th Batch (session 2009-2013)
Department : Wet Processing Technology
Email: mazadulhasan@yahoo.com
Blog : www. Textilelab.blogspot.com (visit)
Southeast University
Department Of Textile Engineering
I/A 251,252 Tejgaon Dhaka Bangladesh
Prepared By :
©right

3. In SIM Group, they use only cotton fiber. They produce low count yarns about 7-20 Ne. So
they used different types of wastage. Mostly used raw cotton brand are Indian Cotton,
Tanzanian Cotton, Brazilian Cotton etc. Different types of raw cotton and wastage are:-
Raw Materials Used:

4. 1. Indian Cotton
2. Tanzanian Cotton
3. Australian Cotton
4. American Cotton
5. Pakistani Cotton
6. Nigerian Cotton
7. Brazilian Cotton
Raw Cotton:

9. 1. Doffing-1
2. Doffing-2
3. Roving Crash
4. Pneumafil
5. Flat Strip
Wastage:

11. Fig: Pneumafil

12. Fig: Doffing-1

13. Fig: Doffing-2

14. Fig: Flat Strip

15. Fig: Roving Crash

16. Country of origin Weight(in KG/Bale) Cost per Kg(TK)
Indian Cotton 160 Kg 160 TK
Tanzanian Cotton - -
Australian Cotton 230 Kg-250 Kg 200 TK
American Cotton 230 Kg-250 Kg 200 TK
Pakistani Cotton 160 Kg 150 TK
Nigerian Cotton 190 Kg 160 TK
Brazilian Cotton 250 Kg 170-180 TK
Fiber bale:

17. Fiber bale:

18. Season Temperature
(0C)
Relative Humidity
(RH %)
Summer 38 60-62
Winter 20-25 58
Atmospheric condition of blowroom line:

19. PROBLEMS ASSOCIATED WITH PROCESSING OF RAW COTTON FROM DIFFERENT
ORIGIN
Bangladesh is almost entirely dependent on imported raw cotton as the basic
raw material for its spinning mills .
Cottons of following growth are used in Bangladeshi Spinning mills:
 Central Asia ( Uzbekistan , Turkmenistan , Tajikistan , Kazakhstan )
 South Asia ( India , Pakistan )
 China
 Middle East ( Syria , Turkey , Yemen )
 West Africa ( Ivory Coast , Cameroon , Chad , Senegal )
 Southern Africa ( Malawi , Zambia , Zimbabwe )
 Northern Africa ( Sudan , Egypt )
An average quality results of cotton from different origin are shown in table 1
& 2 .

20. Processing Advantages & Problems of cotton of different origin:
CIS:
Advantages:
 Consistent in quality
 Good Micronaire Value
 Low Short Fibre Content
 Low Trash Content
 Good Maturity Ratio
 High Length Uniformity & Very High Spinning Consistency Index
 Good fibre strength
 Better Processing Performance
Problems:
 Recently facing problem with White Specks in Knit Fabric
 Color Contaminants

21. USA:
Advantages:
 Very low contamination
 Low trash content
 Less Blow Room & Carding Waste
Problems:
 High Mic
 High Neps
 Comparatively low strength
 Lower spoiining speed & higher twist level
 High short fibre content & more noil extraction
 Low maturity in some growth
Processing Advantages & Problems of cotton of different origin:

22. West Africa:
Advantages:
•Good fibre strength , Length & Uniformity
•Low trash content
Problems:
•Comparatively High Short Fibre Content & Immature fibre Content
•Low Maturity Ratio
•High Contamination Problem
Processing Advantages & Problems of cotton of different origin:

23. Southern Africa:
Advantages:
 Low Neps Content
 Low trash content
 Low Short Fibre Content
 Low Immature Fibre Content
 High Maturity
 Very High Spinning Consistency Index in Zimbabwe Cotton
Problems:
 Mic. Range sometimes found very wide
 Some variety , specially in Malawi is not suitable to spin at higher
Carding & Spinning speed
Processing Advantages & Problems of cotton of different origin:

24. Middle East:
Advantages:
 Good Length & Length Uniformity Index
 Low Nep content
Problems:
 Higher Trash Content
 Low Maturity
 High Nep generation at higher carding speed
 Very High Contamination
Processing Advantages & Problems of cotton of different origin:

25. Australia:
Advantages:
 Less Trash Content
 Less Contamination
 High Short Fibre Content
Problems:
 High Immature Fibre Content
 Low Maturity
Processing Advantages & Problems of cotton of different origin:

26. Processing Advantages & Problems of cotton of different origin:
( For Long Staple Cotton )
USA:
Advantages:
 High fibre & yarn strength
 High Maturity & Uniformity
 Low Trash Content
 Very Low Contamination
Problems:
 Average Mic. Is observed to be increasing
 Stickiness in some growth when used 100% Pima
 Comparatively higher Neps content

27. Central Asia:
Advantages:
 Good Uniformity
 Low Trash Content
Problems:
 Low Maturity
 Higher Neps Content
 Lower Fibre & Yarn Strength
 Higher Mic.
Processing Advantages & Problems of cotton of different origin:
( For Long Staple Cotton )

28. Middle East :
Advantages:
 Higher Strength
 Higher Length & Length Uniformity Index
 Low Neps Content
 High Maturity
 Low Trash Content
Problems:
 Comparatively High Mic.
 Color Contamination
Processing Advantages & Problems of cotton of different origin:
( For Long Staple Cotton )

29. China :
Advantages:
 Very High Length & Length Uniformity
 High Fibre Strength
 High Fibre Elongation
 Low Trash Content
Problems:
 Comparatively Low Maturity , High IFC & Higher Neps Content
 Stickiness problem when processing 100% Chinese Cotton
 High Contamination
Processing Advantages & Problems of cotton of different origin:
( For Long Staple Cotton )

30. Northern Africa:
Advantages:
 Low Neps Content
 Low Short Fibre Content
 Low Immature Fibre Content
 High Maturity
 Very High Fibre Strength
Problems:
 Comparatively High Micronaire
 High Dust Content
 Color Contamination
Processing Advantages & Problems of cotton of different origin:
( For Long Staple Cotton )

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