News & Events

Studies on relationship between Apparent Opening Size (AOS) and Water Permeability of 627 g/m2 Jute Geotextile Fabric.
Jul 29, 2015

Presented by Shri Koushik Das on 29th July 2015

This presentation is based on the sponsored project of National Jute Board. The presentation started with the introduction of Jute Geotextiles, their potential application areas, fabric engineering, standard specifications and design methodology. The porometry of JGT fabric is one of the most decisive parameters for JGT in different application areas. The presentation described the various samples developed under the study and explained various relationships between the constructional parameters and functional properties through regression equations achieved from the laboratory evaluations of the samples.  

Opportunities of Jute Nonwoven in Baghouse filters
Jul 22, 2015

Presented by Shri Partha Sanyal on 22nd July 2015

The presentation has highlighted different mechanism of air filtration and the use of nonwoven in various segments of air filtration. The focus has been given on air filtration for pollution control in large scale industries through Baghouse filters. Detailed components and the mechanism of Baghouse filters have been presented with animated video. The design criteria of Baghouse filter fabric and the required test parameters for the nonwoven Baghouse filter fabric have also been explained during the presentation. The opportunities of jute nonwoven in Baghouse filter fabric have been discussed along with the challenges associated with it.

Yarn Hairiness: Mechanism of Generation and Approaches to Control.
Jul 15, 2015

Presented by Mr. Palash Paul  on 15th July, 2015

The presentation described in details the mechanisms of hairiness generation during spinning. It also described the effect of fibre properties, yarn parameters and process parameters on hairiness generation. Various methods of hairiness measurement was also discussed. Three compact spinning mechanisms; aerodynamic compacting, magnetic compacting and mechanical compacting were discussed in details. Previous research works on control of jute yarn hairiness by wet spinning and air vortex spinning was discussed. At the end the presenter mentioned that IJIRAwish to work on compact spinning of jute yarn.

Digital Printing: A New Era For Jute Diversified Printed Products
Jul 8, 2015

Presented by Ms. Sampurna Chatterjee  on 8th July, 2015

This presentation highlighted on details of digital printing like technology behind the digital printing, type of the digital printing & method of application, major components & machineries involved with this printing, and types of ink used, the ink & fibre chemistry and the entire process flowchart required for this printing purpose. In the present time, digital printing is growing leaps & bounds & is the most evolving technology which has already been explored on jute at IJIRA & this technology  may serve to the jute industry to produce different types of jute diversified printed products.

 

A Study on The Relation between Hairiness Index and Hairiness Values of USTER-ZWEIGLE HL 400 Tester
Jul 1, 2015

Presented by Smt. Soumita Chowdhury  on 1st July, 2015

The term “hairiness”, is used to express the fibres which protrude from staple or spun yarn body and is an inherent characteristic of staple fibre yarn used yarn body. Two modern hairiness measuring instruments are -Uster tester 3 and Uster –Zweigle HL 400. The principles of measuring hairiness are far apart from each other in these instrument. The first one measures the hairiness value as hairiness index (H), which is defined as the total length of all fibre ends sticking out in cm, related to a yarn section of 1cm in length where as the second one measures the number of protruding fibres from yarn surface at different length zone per 100 meter which is an absolute non cumulative value. Samples are prepared to correlate the hairiness values obtained from these two instruments by varying twist multiplier and yarn linear density and tested parallely. Finally maximum correlation between hairiness index and hairiness value of Uster –Zweigle HL 400 is obtained at 3 mm length.

 

[1]  «  12 | 13 | 14 | 15 | 16  »  [17]