Raw matarial

RAW COTTON QULITY FOR SPINNING
MILLS

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

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:

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

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

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:

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

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 .

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

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

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

Southern Africa:
Advantages:
 Low Neps Content
 Low trash 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

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

Australia:
Advantages:
 Less Trash Content
 Less Contamination
 High Short Fibre Content
Problems:
 High Immature Fibre Content
 Low Maturity

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

Central Asia:
Advantages:
 Good Uniformity
Problems:
 Low Maturity
 Higher Neps Content
 Lower Fibre & Yarn Strength
 Higher Mic.

Middle East :
Advantages:
 Higher Strength
 Higher Length & Length Uniformity Index
 High Maturity
Problems:
 Comparatively High Mic.
 Color Contamination

China :
Advantages:
 Very High Length & Length Uniformity
 High Fibre Strength
 High Fibre Elongation
Problems:
 Comparatively Low Maturity , High IFC & Higher Neps Content
 Stickiness problem when processing 100% Chinese Cotton
 High Contamination

Northern Africa:
Advantages:
 Low Immature Fibre Content
 High Maturity
 Very High Fibre Strength
Problems:
 Comparatively High Micronaire
 High Dust Content
 Color Contamination

1. Yarn Manufacturing Technology
Link : http://www.facebook.com/pages/Yarn-Manufacturing-Technology/485014954866808
2. Fabric Manufacturing Technology
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3. Garments Manufacturing Technology
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Technology/472364799463126
3. Wet processing Technology
Link : http://www.facebook.com/pages/Wet-Processing-Technology-Dyeing-/468645219825404
4. Fashion-Design-and-Technology
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Technology/587655294583875?ref=ts&fref=ts
My Facebook Textile related Pages
http://www.textilelab.blogspot.com (Visit My Blog for more Info )

Raw matarial

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