Flow Chart of Traditional Jute Processing

Different Types of Jute Yarn:
The composite mills traditionally manufacture the following types jute of yarns-

1. Fine yarn of 120-224tex(3.5-6.5lb/spy) to be used for carpets and various non-traditional end products like decorative fabrics.

2. CBC yarn of 224-293tex(6.5-8.5lb/spy) for using as carpet backing cloth or very fine cloth.

3. Medium coarse yarn of 241-414tex(7-12lb/spy) for:
  • Hessian warp 241-310tex(7-9lb/spy)
  • Hessian weft 241-414tex(7-12lb/spy)
  • Sacking warp 276-345tex(8-10lb/spy)
  • Other type of end products like canvas.
4. Coarse yarn of 483tex and above(14lb/spy and above) for sacking weft and coarse end-products like matting.

5. Piled yarns or twines of different counts.
 
Flow Chart for Traditional Jute Processing:

Raw jute

Assortment and Hackling

Batch selection

Softening/ Application of emulsion( Spreader / Softener m/c)

Conditioning or pilling( 24-72hrs)

Cardiong( Normally two stages of carding; Breaking and finisher card, additionally inner card is also used if required.)

Drawing( Usually 3-4 passages but for sacking weft two passages)

Spinning( Flyer or ring spinning)

For conventional products

Twisting( Ring twister)

Plying Warp 
↓ 
Brushing and singeing

Weaving(Broad and narrow loom)

Finishing

Lapping ↔ Cutting and sewing(for bag manufacturing)

Bailing

 
References:
  1. Hand book on jute-T.C Ranjan
  2. Jute fibre to yarn- R.R Atkinson
  3. Jute spinning- Md. Hafiz uddin
  4. A guide to jute technology-Md. Sadar Uddin 
  5. http://textilelearner.blogspot.com/2011/08/types-of-jute-yarn-composition-of-jute_1584.html

Author of This Article:


Md. Abu Sayed
Pabna Textile engineering college, Pabna, Bangladesh
Email: sayed1952@facebook.com 
Cell : +8801745214773
 
 
 
 
 
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Editor-in-Chief:

Mazharul Islam Kiron is a textile consultant and researcher on online business promotion. He is working with one European textile machinery company as a country agent. He is also a contributor of Wikipedia.


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