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Adaption of Ring Spinning in the Flyer Spinning Machine for Production of Fine Jute Yarn.

Dr. Md. Osman Ghani Miazi
Chief Scientific Officer
Mechanical Processing, BJRI, Dhaka.

Latifa Ninte Lutfar
CSO
Mechanical Processing, BJRI, Dhaka.

Abstract/ Executive Summary:

An Apron Draft Spinning machine was converted into ring spinning system. In this conversion, ring and travelers were and fine yarn upto 103 tex (3lb/spy) was produced. It was shown that the converted machine was capable of producing fine yarn which was not possible by existing flyer spinning machine. The speed of the spindles increased upto 8000 rpm from its original flyer speed 4250 rpm. Bangla Tossa B (BTB) and Bangla White C (BWC) grade jute fibers were used for producing fine Jute yarn. The spinning performance and physical properties of produced yarns are found comparable with standard with fine yarns.

Keywords: Apron draft, Spindle speed, Fine yarn, Traveller

Location: Mechanical Processing, BJRI, Dhaka.

Start Date: 00-00-2001

End Date: 00-00-2001

Program Area: Farm Mechanization

Commodity: Farm machineries

Objectives:

To develop a technique for the production of fine jute yarn by the developed spinning system.

Methodology:

The proper spindle speed was fixed series of trials. From the result of trials it was found the machine can produce fine yarn between 6000 to 8000 rpm spindle speed.In this experiment apron draft ring spinning machine was used. Two tests were conducted. One was carried out by Bangla Tossa Band another was conducted by Bangla White C grade jute fibre. The finisher drawing silver were taken from the experimental spinning mill of BJRI. In both cases, it was possible to produce fine yarn upto103 tex. Slightly heavier yarn was possible to produce through this developed system. In this experiment the back processing of jute fibre was the conventional system and the draft of the spinning machine was 20. The only change was done at its twisting and winding zone.The physical properties of yarns were tested by a Computerized Instron Machine of testing and standardization department of Bangladesh Jute Research Institute under standard atmospheric condition, 65+2%%R.H and 20ºC.

Source of Information: International Conference on Mechanical Engineering, December, 26-28, 2001, V-161-164

Article Link (Online Journal):

Funding Source:

1. Government

Budget:

Total Budget (Tk.) :

Achievement/Findings:

In this study, the experiments were carried out on two samples, BTB and BWC. In both cases their spinning performance, like load at break,% strain tenacity and textile modulus were satisfactory. The quality ratio is an important criteria for assessing a yarn. In this study it was shown that the quality ratio is 79.1 for BTB fibre and 58.5 for BWC fibre and 64.5 for the yarn produced from BWC fibre by the Gardella spinning frame. The jute of BTB is better then BWC. So the quality of yarn produced from BTB is better than the yarn produced from BWC. So it is preferred better quality jute for making fine yarn. The yarn produced b the standard Gardella spinning frame. The jute fibre of BTB is better than the yarn produced from BWC. So, it is preferred better quality jute fibre for making fine yarn. The yarn produced by the standard Gradella Spinning Machine from the same grade of jute fibre was compared. It is shown that yarns produced by the modified machine are comparable and the machine ca be able to produce fine yarn like 103 tex (3 lbs/spy).

Knowledge Management: Journal, Report/Proceedings