News & Events

Waste Management in Jute Industry (Factory Side)
May 11, 2016

Presented by Shri Gopal Mukhopadhyay, Technical Officer, IJIRA  on 11th May, 2016

The presentation was made on different types of waste generated in the factory side, causes of generation, standard percentages of waste generation and remedial measures to reduce the amount of waste. It had been also discussed that proper machine maintenance and awareness among the worker may reduce the waste generation.

Better test method than Dry or Wet Sieving to obtain the Opening Size for Geotextile Filter Desig n Purposes
Apr 27, 2016

Presented by Mrs Soumita Chowdhury, Scientist, IJIRA on 27th Apr, 2016

The presentation was made on different test methods for the measurement of opening size of geotextiles and comparison of the test methods supported by experimental data. Hydrodynamic Sieving, Wet Sieving, Dry Sieving, Mercury Intrusion Porosimetry, Liquid Extrusion Porosimetry, Capillary Flow Porometry, Suction, Image Analysis, Bubble Point are the various test methods discussed. It had been concluded that Capillary Flow Porometry is the best method for the pore size analysis of geotextiles.

Absorbing Green Composites from Cellulose Waste Fibre
Apr 22, 2016

Presented by Shri Debkumar Biswas, Scientist, IJIRA on 22nd Apr, 2016

The presentation was made on technology of sound absorption, sound absorbing materials, prospects of natural fibre based composites as sustainable sound absorbing materials. Different types of sound absorbing natural fibre based composites, their characteristics and comparison with other sound absorbing products were discussed. It was also discussed that there is a good prospect of using jute fibre based composites indeveloping sound absorbent products.

Analysis of yarn irregularity and its relationship to other yarn characteristics
Apr 13, 2016

Presented by Debi Prasad Gon  on 13th Apr, 2016

It is well known that an irregular yarn makes a low quality cloth. It also leads to exces­sive stoppages of spindles, beams and looms on account of which the production efficiency is lowered. A rapid and easy method for the evaluation of yarn irregularity and capable of being used in the industry for routine control purposes is, therefore, very important. In this presentation, published work on the subject of jute yarn evenness is to be reviewed. The presentation divided into five sections, like, the theory, causes, measurement, effects, and reduction of irregularity.

In the presentation, it has been discussed briefly on the practical aspects of the measurement of yarn irregularity and primarily dependents like (i) in­herent properties of the raw materials, (2) fac­tors associated with the preparing and the spinning machines, (3) mechanical defects in the machines and (4) external causes.

 Apart from the irregularity which is dependent on these factors and produced in the operations of preparing, drawing and spinning, there are other irregularities such as those, introduced in the processes of warping, sizing, weaving and finishing. Since the irregularity imposed in the processes of manufacture of yarn is the funda­mental cause of the other irregularities and the most important factor closely related to the quality of yarn and fabric. 

Natural Dyeing of Textiles with Natural Resources from NER
Apr 8, 2016

Presented by Ritwik Chakraborty  on 8th Apr, 2016

The lecture discussed the chemistry, historical background and merits of natural dyes for application of textile materials. North East Region (NER) of India having ample biodiversity is a potential source of natural dyes. The lecture elaborated the R&D activities carried out by IJIRA using selected natural resources of NER. It mentioned the natural dye extraction and dyeing methods standardized by IJIRA.

[1]  «  4 | 5 | 6 | 7 | 8  »  [17]