http://nopr.niscpr.res.in/handle/123456789/42724 2026-10-10T12:26:05Z 2026-10-10T12:26:05Z Jhanji, Y Gupta, D Kothari, V K http://nopr.niscpr.res.in/handle/123456789/42741 2017-09-13T12:30:27Z 2017-09-01T00:00:00Z

Title: Effect of fibre, yarn and fabric variables on heat and moisture transport properties of plated knit Authors: Jhanji, Y; Gupta, D; Kothari, V K Abstract: In this study, the effect of fibre, yarn and fabric variables on heat and moisture transport properties of single jersey plated fabrics has been studied. Thermal properties, air permeability as well as moisture vapor and liquid transport properties of fabrics are found to be affected by fibre types, yarn linear density and fabric loop length. Slack fabrics knitted at longer loop length and with finer yarns in the inner layer show lower thermal insulation and are suitable choice as summer wear due to improved permeability of fabrics to air and moisture vapor. Cotton/viscose fabrics show better liquid transport properties along with the highest air and moisture vapor permeability, thereby resulting in rapid liquid dissipation and dry feel next to skin. The designed fabrics are thus suitable for use when an individual is involved in strenuous physical activity. Page(s): 255-263

2017-09-01T00:00:00Z Yekrang, Javad Semnani, Dariush Seyghlani, Amin Zadbagher Razavi, Shahnaz http://nopr.niscpr.res.in/handle/123456789/42740 2017-09-13T12:26:04Z 2017-09-01T00:00:00Z

Title: A novel biodegradable micro-nano tubular knitted structure of PGA braided yarns and PCL nanofibres applicable as esophagus prosthesis Authors: Yekrang, Javad; Semnani, Dariush; Seyghlani, Amin Zadbagher; Razavi, Shahnaz Abstract: A novel multi-layered knitted structure with the coating of the nanofibrous web has been developed for using as a esophageal prosthesis. Poly glycolic acid (PGA) braided yarn has been knitted into tubular form and polycaprolactane (PCL) nanofibres are coated on the surface of PGA knitted fabrics with the electrospinning process. Finally, a gelatin coating has been applied on the surface of the developed tubular fabric. The effect of the stitch density parameters on the mechanical properties of the multi-layer knitted fabric has been investigated and the optimum process conditions for electrospinning of the PCL nanofibres are obtained by studying the uniformity in the diameter distribution of the fibres. The surface roughness of the gelatin coated fabric is calculated with image processing method before and after the coating process. Degradation behavior of the three-layer esophageal prosthetic is also investigated. Results show that the knitted tubular fabrics has mechanical properties similar to real esophageal tissue. Coating of gelatin increases the surface roughness of the PCL nanofibrous web and also retains the porosity of the final structure. Degradation test also shows that the PGA knitted fabric coated with the PCL nanofibres and gelatin is degraded in a controlled manner. It can be said that this tubular knitted structure can be considered as a substitute for prosthetic application in different esophageal diseases after biological investigations. Page(s): 264-270

2017-09-01T00:00:00Z Veer, Jai Kothari, V K http://nopr.niscpr.res.in/handle/123456789/42739 2017-09-13T12:21:31Z 2017-09-01T00:00:00Z

Title: Electromagnetic shielding effectiveness of woven fabrics having metal coated zari wrapped yarns Authors: Veer, Jai; Kothari, V K Abstract: Cotton and metal coated zari wrapped polyester filament yarns in different proportions have been used to produce woven fabrics for evaluating electromagnetic shielding effectiveness (EMSE). Coaxial transmission line measurement technique is used for the measurement of EMSE in the frequency range of 100-1500 MHz. The results show that the type of metal used, percentage of conductive yarns, type of weave and humidity have a significant effect on EMSE. Page(s): 271-277

2017-09-01T00:00:00Z Nan, Zhang Xiang-yu, Jin Chen, Huang Qin-fei, Ke http://nopr.niscpr.res.in/handle/123456789/42738 2017-09-13T12:18:12Z 2017-09-01T00:00:00Z

Title: Improved filtration properties of hydroentangled PTFE/PPS fabric filters caused by fibrillation Authors: Nan, Zhang; Xiang-yu, Jin; Chen, Huang; Qin-fei, Ke Abstract: The effect of specific energy on fibre diameter of polytetrafluoro ethylene / polyphenylene sulfide (PTFE/PPS) blended fabrics has been studied. The influence of blend ratio and bonding process on air permeability, mean flow pore size and filtration properties are also studied. The results show that fibrillation of PTFE fibres could be induced and regulated by high-energy water jets. With the increase of fibrillated PTFE fibres, the mean pore size and air permeability of the fabric decrease, leading to an increased filtration properties. Page(s): 278-285

2017-09-01T00:00:00Z