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Determination of Equilibrium Moisture Regain of Jute and Jute Products Under Natural Condition.

A.M.R. Alam
PSO
Testing Department, Physics and Testing Division, Bangladesh Jute Research Institute. Dhaka-1207

Md. Shahidullah
Sciectific Officer
Testing Department, Physics and Testing Division, Bangladesh Jute Research Institute. Dhaka-1207

Abstract/ Executive Summary:

Moisture relationship of jute and jute products and the environmental conditions for production of jute and jute blended were studied. It was seen that at 65% R.H. at 22?C the moisture regain of jute has been found to be 12.36% but generally it is taken to be about 13.75% at 65% R.H. at 20?C. The moisture regain of jute decreased from 12.56% to 11.11% when the time of exposure was increased from 2 hours to 24 hours which normally should not occur rather the regain of jute should have increased with the increase of time of exposure.

Keywords: Physical property, Moisture regain, Moisture relationship

Location: Bangladesh Jute Research Institute

Start Date: 01-01-1985

End Date: 31-12-1985

Program Area: Postharvest and Agro-processing

Commodity: Jute

Objectives:

To find out the moisture relationship of random jute of optimum environmental conditions.

Methodology:

The samples of raw jute were collected at random and were kept in the experimental room of testing department. The relative humidity of the room was determined with the help of a whirling hygrometer. At the time of starting experiment at first the relative humidity of the room was determined with the help of a whirling hygrometer and also room temp. was recorded. Then 100 gms from the collected sample was heated to about 11⁰C using the conditioning oven. The percentage regain of the above sample was found out.

Source of Information: Annual Technical Report

Article Link (Online Journal):

Funding Source:

1. Government

Budget:

Total Budget (Tk.) :

Achievement/Findings:

It was seen from the data the regain values at different R.H. were comparatively low than the values so far available for the corresponding relative humidity. It was seen that at 65% R.H. at 22?C the moisture regain of jute has been found to be 12.36% but generally it is taken to be about 13.75% at 65% R.H. at 20?C. The moisture regain of jute decreased from 12.56% to 11.11% when the time of exposure was increased from 2 hours to 24 hours which normally should not occur rather the regain of jute should have increased with the increase of time of exposure. The results of moisture regain would be useful to know the degree of humidification/dehumidification necessary to maintain processing efficiency and to improve it.

Knowledge Management: Report/Proceedings