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Study on the Performance of Modified 2nd Drawing Machine in Jute Processing to Produce All Jute and Blended Fine Yarn.

Dr. Md. Osman Ghani Miazi
CSO
Mechanical Processing Division, BJRI

Dr. A.K.M.Mahabubuzzaman
Principal Scientific Officer in charge
Mechanical Processing Division, BJRI

Md. Asaduzzaman
Director(Tech.)
Director(Tech.), BJRI

Abstract/ Executive Summary:

In this experiment, existing pins of 3rd Drawing frame were replaced by new sets of pins with different pin density, size and shape and yarns were produced from both systems. Physical properties of produced yarn were tested and found modified pins density shows better quality yarn.

Keywords: 2nd drawing machine, Quality ratio, Faller bar, CV%

Location: Mechanical Processing Division, BJRI

Start Date: 01-07-2010

End Date: 30-06-2011

Program Area: Postharvest and Agro-processing

Commodity: Jute

Objectives:

Traditional Drawing machines are used for regular jute yarn. After some modifications in the pinning system of the second drawing frame will improve the quality of the out-put sliver. It is necessary to observe that how this modification of the Drawing machine behaves with jute and blended fibre and what types of effects will happen in fine jute yarn quality. Earlier 3rd drawing machine was improved but at this stage experimental work will be done on 2nd Drawing machine through addition of new spinning system.

Methodology:

According to the conventional jute processing system jute fibre (BWC) passed through Softener machine, Breaker card machine, Finisher card machine, 1st Drawing machine, 2nd drawing machine. Drafting and Drawing zone of the existing 3rd Drawing machine was changed with different pin arrangements of the faller bars. Gap between pins, size, and shape of the pins of the Drawing zone are responsible for the quality of jute sliver. Pin arrangement and its distribution improve the sliver quality for the production of fine jute yarn.

Source of Information: Annual Technical Report: 2010-2011 Page: 84-86

Article Link (Online Journal):

Funding Source:

1. Government

Budget: 1,50,000/- (one lac fifty thousand taka)

Total Budget (Tk.) : 1,50,000/- (one lac fifty thousand taka)

Achievement/Findings:

Tensile strength, Quality ratio, Coefficient of variation, Standard deviation of produced yarn from existing and modified (different pin density) system was determined. Modified 2nd Drawing frame shows better yarn properties compared to the existing 2nd Drawing frame. The yarn quality was better for modified system. The produced yarn was more regular and uniform compared to the existing drawing frame. As a result, pin arrangements of the 2nd drawing machine shows positive impacts on yarn properties.

Knowledge Management: Report/Proceedings