Kalyan Ray Gupta

Bio: Kalyan Ray Gupta is an academic researcher from University of Calcutta. The author has contributed to research in topics: Topsoil & Geotextile. The author has an hindex of 2, co-authored 3 publications receiving 8 citations.

Design and Engineering of Open Weave Jute Soil Saver for Potential Application in the Field of Soil Erosion Control and Hill Slope Management

Abstract: Out of several natural agents causing extensive damages to roads, landslides can claim to be a major destroyer. There are several causes for landslides such as hazardous ground conditions, landform configuration adversities, occasionally occurring natural physical forces and anthropogenic impact on the environment. In such vulnerable situations the top soil on hill slopes get disintegrated due to intensive precipitation or shaking due to tremors and eventually flows down rapidly down the slope. The situation deserves the search for a biocover which can reduce the velocity of overland flow and entrap detached soil particles thereby controlling top soil loss. Jute Geotextile (JGT) if properly designed can fulfill the said criteria besides facilitating growth of vegetation. This paper discusses optimization of property parameters of open weave Jute Geotextile in tune with different parameters of design concerning protection of hill slope along with comparative analysis of the results of different tests on on...

Study on Generation of Knotting Waste in Weaving Cotton Fabric and its Remedial Measures

Abstract: Waste control during knotting of warp yarns plays a considerable role in increasing the rate of production of fabric and to maintain its quality criterion. During knotting, a notable length of the warp yarns in the sized beam gets wasted as the quality of those ends get damaged during the previous process. In this study, ways to reduce the knotting waste of the sized beam warp yarns have been examined using cotton yarns of carded and open-end qualities. A small modification of the accessories of the yarn sizing machine along with adoption of some new practices different from the common practices applied for manufacturing of the fabric, have been proposed. This will not only help to reduce the knotting waste of the warp yarns, it is also a time saving process, which will eventually lead to increase in production rate.

A Review on Drapeability of Natural Fibre-made Fabrics

Abstract: Amongst the different property parameters of the produced fabric, drapeability of fabric is one of the crucial parameters with respect to end uses. It is the ability of fabric to hang freely in graceful folds when some area of it is supported over a surface and the rest is unsupported. During the application of different fabrics, both in industrial and apparel sector, it has been observed that the ability of the fabric to assume a graceful appearance of the contour is very vital conveying the significance of drapeability of the fabric. With the growing environmental concerns and eco-sustainability, the global emphasis is towards the application of eco- concordant, bio-degradable, renewable green products and this has inclined towards the natural fibre-made fabrics scoring them over their manmade counter parts and making them a natural choice for the mankind. The natural fibre-made fabrics have proven records of efficacy to prove their mettle match with manmade fabrics in different areas of application. This paper has reviewed and analyzed the various attributes of natural fibre-made fabrics such as jute, cotton, silk and wool focusing mainly on their draping behavior, determining their strengths and weakness considering the future direction of research to overcome their deficiencies.

Influence of slope angle and rainfall intensity on the runoff erosion control performance of woven geomesh

Abstract: In this study, runoff erosion control performance of different coir and jute geomeshes is studied at different slope angle, rainfall intensity, and soil-infiltration conditions using a runoff erosion control tester (based on ASTM D 7101). It is observed that the erosion control percentage under soil-infiltration conditions is lower at higher slope angle and rainfall intensity, due to the higher water flow velocity, and because of the same reason runoff volume under zero-infiltration conditions is higher. It is also observed that the geomeshes with higher weight per unit area results in lower runoff and higher culmination, due to the higher storage volume and restriction offered by larger diameter weft yarn of higher weight geomesh.

Influence of weft yarn diameter on runoff erosion control performance of woven geomesh

Abstract: The performance of geomeshes used in runoff erosion control application is expected to improve as weft yarn diameter increases. In this study coir and jute geomeshes with different weft yarn diameter are subjected to runoff erosion tests in zero infiltration and soil infiltration conditions (i.e. without and with soil), at three different slope angles of 15°, 30o and 45°. Germination test is performed according to ASTM standard D 7322, using earthen pots and wheat seeds. Increased weft yarn diameter results in improved performance of coir and jute geomeshes at all slope angles and soil-infiltration conditions, due to increased storage volume, except coir geomesh at steeper slope angles. In germination test, increase in weft yarn diameter results in improved average number of roots; but, the percentage of vegetation and average length of roots are found to reduce.

Management of spinning and weaving wastes

Abstract: Wastes involved in textile manufacturing are undesirable but inevitable in yarn and fabric manufacturing processes. The wastes extracted during spinning and weaving operations are frequently not taken seriously in many cases. This chapter highlights different types of waste extracted during spinning and weaving operation along with their classification and percentage level. The chapter also classifies waste in terms of soft/hard waste or product/process waste generated during spinning and weaving operations. As the raw material costs constitute the majority of yarn and fabric production costs, every textile industry prefers to use waste fibers in the blends to save raw material costs and efficient use of limited raw material resources. Also, waste control during spinning and weaving plays a significant role in increasing the rate of production and minimization of cost of yarn and fabric. The management of the different types of waste is also discussed along with different types of machineries utilized for making these waste usable or recyclable for further processing.