http://nopr.niscpr.res.in/handle/123456789/56421 2026-10-09T01:21:06Z http://nopr.niscpr.res.in/handle/123456789/58713 Title: Optimization of parameters for needle cut index using TOPSIS method Authors: Bansal, Payal; Sikka, Monica; Choudhary, AK Abstract: The influence of loop length, stitches per inch, and sewing needle type on needle cut index in 100% cotton single jersey fabric has been studied considering factorial design. Further optimization of factors using Design Expert Tool has been done followed by ranking the optimized solution through TOPSIS method along with the confirmatory test. The results show that sewing needle type has the highest contribution with 29.83% followed by the 23.08% for stitches per inch and 11.95% in the case of loop length as far as needle cut index in the course direction is concerned. In the wale direction, sewing needle type has the highest contribution with 50.45% followed by the 13.30% for loop length and 10.77% for stitches per inch. It has also been observed that SES needle type is generating more needle cut as compared to SUK and SAN type needles. It is confirmed that the error percentage has been the lowest for highest rank solutions and subsequently the error increases with decreasing rank in terms of closeness coefficient. The present study is expected to be helpful for garment industrialists in minimising the needle cut defect among knitted garments and improve the quality of producing seam. Page(s): 319-324 2021-12-01T00:00:00Z http://nopr.niscpr.res.in/handle/123456789/58712 Title: Effect of compressional behaviour and sewing machine foot pressure on sewing thread consumption Authors: Jaouachi, Boubaker; Khedher, Faouzi Abstract: Effect of compressibility and foot pressure on the consumption behaviour of sewing threads in case of single and doublelayered denim fabrics has been investigated. Experiments involve fabric thickness of three different denim samples (cotton, and 90/8.5/1.5% & 92/6.5/1.5% cotton/polyester/elastane) and their compression properties measurement using Kawabata device. A relationship between compressional energy and consumed sewing thread values using lock stitch type 301 has been investigated. Based on this, accuracy of the coefficient of regression (close to 1) has been observed, indicating the positive relationship between compressibility property and sewing thread consumption behaviour. Implementation of software can help the industries to minimize their consumption errors and approximations. Nevertheless, under the same pressure value applied by the foot pressure, the thickness values of sewed layers can decrease differently as a function of their compressional resilience. Thus, it is obvious that thicker fabrics display lower compressional resilience and vice versa, which encourages more consumption of sewing thread. Page(s): 325-332 2021-12-01T00:00:00Z http://nopr.niscpr.res.in/handle/123456789/58711 Title: Functional finishing of woven fabric with reduced graphene oxide nanosheets decorated with Ag-N doped titanium dioxide nanoparticles Authors: Sharma, Simran; Midha, Vinay; Verma, Sushma Abstract: An innovative approach has been made to impart self-cleaning and antibacterial properties to woven fabrics. Reduced graphene oxide/Ag-N TiO2 nanocomposites are successfully prepared by simple mixing and sonication for finishing of woven fabric with prepared nanocomposites. The physiochemical properties of prepared samples are analysed by X-ray diffraction, UV-Visible spectroscopy, Field emission scanning electron microscope and Fourier transform infrared radiation spectroscopy. The prepared nanocomposite (rGO/ 1% Ag-N TiO2) shows lower bandgap of 2.3 eV as compared to individual nanomaterials, and hence the improved photocatalytic performance, leading to high self-cleaning and antibacterial activity. Page(s): 333-340 2021-12-01T00:00:00Z http://nopr.niscpr.res.in/handle/123456789/58710 Title: Influence of trichloroacetic acid-methylene chloride on structure of polyester fabrics Authors: Joshi, Shubham; Midha, Vinay; Rajendran, S Abstract: In this study, polyethylene terephthalate (PET) fabric has been treated with trichloroacetic acid–methylene chloride (TCA-MC) to modify its functional properties by altering the structure. TCA-MC interacts with both amorphous and crystalline regions of PET and alters the structure (solvent-induced-polymer modification), which directly affects the functional properties of PET fabrics. Five different concentrations (0.5, 1, 3, 5 and 10%) of TCA-MC at 1, 3 and 5 min are used to treat two fabric structures, viz 100% micro polyester fabric and 100 % texturized polyester fabric. The physical properties and wettability of the treated samples are investigated, and the results are statistically analyzed. The results reveal that TCA-MC alters the structure of polyester, with the degree of modification determined by TCA-MC concentration and treatment time. Page(s): 341-348 2021-12-01T00:00:00Z