http://nopr.niscpr.res.in/handle/123456789/54573 2026-10-09T16:19:24Z http://nopr.niscpr.res.in/handle/123456789/54588 Title: Compression behaviour of hand-tufted carpets: Part I–Effect of short-term static and dynamic loading Authors: Choubisa, Bhavna; Sinha, S K; Chattopadhayay, R Abstract: The effect of static and dynamic loading on the compression characteristics of hand tufted carpets has been studied using two types of pile materials. Wool tufted carpets are found to show better retention of thickness. Higher tuft density is found to assist retention of thickness, while higher pile height results in more thickness loss. Thickness loss is also found to be more at the initial impacts, while the recovery rate is found to be more at the initial stage. Page(s): 139-144 2020-06-01T00:00:00Z http://nopr.niscpr.res.in/handle/123456789/54587 Title: Contribution of bending and shear behavior of woven fabrics in the characterization of drape Authors: Sadoughi, Mahlagha; Boushehri, Arash Nazem; Ezazshahabi, Nazanin Abstract: The drape, bending and shear properties of a group of woven fabrics have been studied along with the effects of fabric structural parameters on these properties. In addition, the influential effect and relative contribution of bending and shear behavior in the determination of drape is also evaluated. The results show that the crossing over firmness factor, which is related to the weave structure and also the weft density, significantly influences the drape, bending and shear behavior of fabrics. With the aid of linear regression analysis of the relationship among drape coefficients, bending and shear modulus, the correlational model for prediction of drape based on bending and shear has also been developed. With regards to this model, it can be claimed that the relative contribution of fabric bending in determination of drape is greater than that of shear. Page(s): 145-152 2020-06-01T00:00:00Z http://nopr.niscpr.res.in/handle/123456789/54586 Title: Effect of tannic acid on properties of electrospun gelatin nanofibres Authors: Mozaffari, Abolfazl; Mirjalili, Mohammad; Gashti, Mazeyar Parvinzadeh; Parsania, Masoud Abstract: Gelatin/tannic acid nanofibres have been prepared and the effects of production parameters, including high voltage, feeding rate and distance between tip of the needle and collector on the morphology of nanofibres are investigated. The results show that the average nanofibre diameter increases with raising the high voltage values, due to less branching of liquid jet. Increasing the feeding rate leads to an increase in the nanofibre diameter, up to a certain value (0.6-0.8 mL/h). Further increase in the feeding rate value causes the formation of a ribbon-like structure. The increment in the content of tannic acid as a crosslinker increases the viscosity of the spinning solution and the average nanofibre diameters. Also, the tensile strength of crosslinked nanofibres increases as compared to that of the gelatin nanofibres. Moreover, the addition of tannic acid to gelatin nanofibres significantly enhances the antibacterial property of nanofibres. Page(s): 153-163 2020-06-01T00:00:00Z http://nopr.niscpr.res.in/handle/123456789/54585 Title: Factor affecting absorbency behaviour of woven velour printed terry fabrics Authors: Singh, J P; Ram, Sanjeev Kumar Abstract: The present research work is aimed at designing the woven velour printed terry fabrics with improved overall performance. The influence of pile height, pick density and pile count (one ply and two ply both) on the water absorbency of fabric has been studied. Thirty samples have been prepared by changing variables as per Box – Behnken design of experiments. These variables are optimised for achieving high quality woven velour printed terry fabrics. The findings show that the absorbency of these fabrics increases with the increase in pile height and pick density. The results are found true for both the fabrics having one ply and two ply pile yarns. The absorbency of the fabrics having two ply pile yarn is always higher as compared to fabric having one ply pile yarn. The absorbency behaviour of these fabrics is different from the looped woven terry fabric which clearly indicates the importance of loop geometry. Page(s): 164-168 2020-06-01T00:00:00Z