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Production of combed yarn in Pakistan: Problems And prospects.

Byline: Dr. H.R.Sheikh and Professor Emeritus

Pakistan is ranked as the fourth largest producer of cotton in the world after China, India and U.S.A. Mainly medium to medium long staple length cotton varieties were grown in Pakistan. The data tabulated collected from cotton growers clearly shows that production of long staple cottons suitable for the production of fine and super fine categories of combed yarns decreased from 23.20% to 13.10% in 2001-2002- as compared to 2000-2001. Similarly, the production of medium long cottons decreased from 69.90% to 35.10%.

###Medium###Medium Long###Long

###23.8 to 25.4###26.2 to 27.8 m.m.###28.6 to 30.2mm.

Year###m.m.30/32###1###3###1###6###Remarks

###to 1.0 inch###1###to 1###inch###1###to 1###inch

###32###32###8###32

###Percent###Percent###Percent###Pakistan

2000-###did not

2001###6.9###69.9###23.2###produce

###Extra long

2001-###staple cot-

###51.8###35.1###13.1###tons

2002

In consequence of sustained work and application of modern techniques cotton breeders and agricultural scientists have succeeded in improving the quality of Pakistani cottons significantly. The relevant data is tabulated below:

###Medium###Medium Long###Long

###23.8 to 25.4###26.2 to 27.8 m.m.###28.6 to 30.2mm.

Year###m.m.30/32###1###3###1###6###Remarks

###to 1.0 inch###1###to 1###inch###1###to 1###inch

###32###32###8###32

2007###Percent###Percent###Percent###Extra Long

###staple cotton

2008###0.5###37###62.50###could not be

###produced

It is obvious from the foregoing data that in 2007-2008 production of long staple cottons increased to 62.50% as compared to only 13.10% in 2001-2002. It may therefore be concluded that some of the long staple cottons available in Pakistan such as k-68, MS -84 and Sadori can be utilized for the production of combed yarns upto 60 Ne. However, the textile industry of Pakistan is not using Pakistani cottons for the production of fine and superfine categories of combed yarns. This is mainly due to low standards of ginning. Most of the ginning factories produce poor quality ginned contaminated cottons with large scale variations in all fibre properties. Polypropylene fibre contamination is the most dangerous hurdle in the manufacture of value -added products. Furthermore, abnormally high percentage of non-lint reduces the yield of yarn from Pakistani cottons.

In order to improve the quality of cottons, the Government of Pakistan (GoP) started, "Clean Cotton Program" under the Cotton Standardisation Ordinance promulgated in 2002. The program is being implemented under the supervision of Pakistan Cotton Standards Institute. The Ministry of Textiles (MINTEX) fixed 600,000 bales as the target for procurement of clean cotton bales during 2008-09. On the basis of expected production of 12 million cotton bales in 2008-09, the percentage of clean cotton bales works out at 5% only.

Production Pattern

Coarse yarn upto 20 Ne = 49.17%

Medium yarn 21Ne to 35 Ne = 21.03%

Fine upto 47 Ne, Super fine upto 100 Ne = 5.20%

Polyester cotton, polyester viscose, other man-made fibers Blends = 24.60%

Total = 100%

The textile industry of Pakistan has started production of fine and superfine categories of combed yarns from American Pima Cotton for conversion into value-added products, i.e. apparel and ready-made garments.

At present, Pakistan is the second largest importer of American Pima Cotton measuring 35m.m. in staple length. However, the installed capacity of combing machines in Pakistan is rather limited as reflected by the production pattern of the Spinning Sector. Form the data pertaining to the production pattern it is obvious that only 5.20% of fine and superfine categories of combed cotton yarns are being produced. Historically, total yarn production in Pakistan during 2007-08 was 2,846 million Kgs. The combed yarn production @5.20% works out at 147.992 million Kgs only. For increase in the production of combed yarns expansion of the combing capacity of the Textile Industry is urgently required, for which incentives must be provided by the GoP to facilitate and promote the import of combing sets by the Spinning Sector. Production balance of a typical combing set comprising of one pre-comber Draw Frame, one Lap Former and four combers is reported as follows:

Production of 4 Combers per day = 60x350x6x60x24x8x4x0.82x0.85

###1000 x 1000

Waste extraction (Noils) =18%, Speed of combers=350 Nips / minute

Feed required from the Lap Former = 8921.6583 = 10880.071

###0.82

Thus one Lap Former is sufficient to feed set of 4 combers.

(iii) Pre - Comber Draw Frame

Delivery speed of double delivery Draw Frame= 450 Metres per minute. Grains per yard of sliver = 70.

Feed required from Draw frame at 0.5% waste at the Lap Former = 11010.5

0.995

/day

= 11065.83 LBS /day.

Production of Draw Frame per day

= 450x1.0936x70x60x24x2x0.85

7000

= 12047.097 LBS/day

Thus one Draw frame is sufficient to feed the Lap Former. The Spinning Mill importing, installing and operating one combing set will acquire the capability of producing about 8900 LBS of fine and super fine counts of combed value - added yarns per day.
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Publication:Pakistan Textile Journal
Article Type:Statistical data
Geographic Code:9PAKI
Date:Feb 29, 2012
Words:866
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