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Effect of Twist on Productivity of Fine Jute Yarn Produced by Modified Ring Spinning Machine.

Dr. Md. Osman Ghani Miazi
Chief Scientific Officer
Mechanical Processing Division, Bangladesh Jute Research Institute, Manik Mia Avenue, Dhaka-1207.

Dr. A.K.M. Mahabubuzzaman
Principal Scientific Officer
Mechanical Processing Division, Bangladesh Jute Research Institute, Manik Mia Avenue, Dhaka-1207.

Mohammad Maniruzzaman
Senior Scientific Officer(CC)
Mechanical Processing Division, Bangladesh Jute Research Institute, Manik Mia Avenue, Dhaka-1207.

Mohammad Abdul Jalil
Assistant Professor
Dept. of Textile Engineering, Mowlana Vhashani Science and Technology University.

M. Abdus Shahid
Lecturer
Dept. of Textile Engineering, Dhaka University of Engineering and Technology (DUET).

Abstract/ Executive Summary:

This research was done in Mechanical Processing Division of Bangladesh Jute Research Institute in 2008. An Apron draft spinning machine was modified into ring system by incorporating rings and travelers instead of flyers. In this modified, delivery zone of the machine was left unchanged. Two rails were incorporated, one for carrying spindle and another one for carrying rings. An ideal roller was installed at the rear end of the machine for transferring power from main roller to the spindles. The input sliver of the machine was varied from 2412 tex to 2756 tex (70 to 80 lbs/spy). Twists of the yarn were inserted from 236 to 294 tpm (turns per meter). A good number of trail runs were performed for determining the productivity of yarn of 103 tex and 138 tex through the machine were observed at different twists. Productivity of yarn of 103 tex and 138 tex through the machine were observed at different twists. It was observed that twists have an important influence on the productivity and quality of yarn.

Keywords: Ring spinning, Twist, Fine yarn and productivity.

Location: Mechanical Processing Division

Start Date: 00-00-2008

End Date: 00-00-2008

Program Area: Farm Mechanization

Commodity: Jute

Objectives:

The aim of this study was to determine the twist for maximum productivity of fine jute yarn of 103 tex (3 lbs/spy) and 138 tex (4 lbs/spy) from the developed spinning system.

Methodology:

Jute fibre has been facing a tough completion with synthetic fibres science their emergence in world textile market. To overcome this competition it is necessary to produce fine jute yarn by developing/modifying the existing jute machinery. Through this development, it may be possible to spin fine jute yarn, which can be used for diversification of jute, such as lightweight shopping bag, furnishing fabric, decorative fabric etc. A a result, jute fibre may be used in the production of fabric that may further enhance its used in various fields of textiles. Different organizations both hame and abroad are trying to introduce diversified jute products in the market. With a view to earning foreign currency in substantial amount, fine jute yarn is very essential for the production of diversified jute goods. In this regard Bangladesh Jute Research Institute has carried out research works in the development of a technology for production of fine yarn. In these works, Gradella spinning machine has been used. Moreover, the machine manufacturer is not making these machines for a long time. Frence Textile and Clothing Institute (IFTH) are doing research for production of fine and quality yarn jute and other natural fibre like flax. N.S.C. (schlumberger) a machine manufacturer of France is making some machines for producing fine jute yarn, for example N.S.C. 232 ring spinning frame. But all these machines are not cost effective for jute fibre. Mechanical Engineering Department of Bangladesh University of Engineering & Technology has carried out a research work under Ph.D. programme for production of fine yarn using Apron Draft spinning. In this work, adaption of ring spinning in the flyer spinning system was studied and different parameters wre optimized for production of fine jute yarn.

It is necessary to establish the optimum twist for fne yarn although twist varied with the variation of linear density of the produced yarns. In this study, the twist was optimized for 103 and 138 tex jute yarns. Twists of the yarns were inserted from 236 rpm (turns per meter) to 394 tpm for the determination of optimum twist for 103 twx and 138 tex jute yarn keeping all other parameters constant.

Source of Information: Journal of Innovation & Development Strategy (JIDS), Vol: 3, Issue: 4, August, 2009, P: 14-16

Article Link (Online Journal):

Funding Source:

1. Government

Budget:

Total Budget (Tk.) :

Achievement/Findings:

The following conclusion can be drawn from the study. Apron Draft spinning machine can be converted into ring spinning. The machine is capable to produce jute yarn of 103 tex (3 lbs/spy to 4 lbs/spy). Optimum twist is essential for higher productivity. Application of twist other than optimum twist lowers the productivity of the machine. Optimum twist is 315 tpm for 103 tex and 275 tex yarn. Quality ratios of the produced yarns are satisfactory.

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