http://nopr.niscair.res.in/handle/123456789/3363 Search the Channel search http://nopr.niscair.res.in/simple-search http://nopr.niscair.res.in/handle/123456789/3388 Title: Finishing of jute using methacrylic acid in presence of tetrasodium pyrophosphate and potassium persulphate as catalysts under thermal treatment <br/> <br/>Authors: Das, Debasish; Munshi, Rajiv <br/> <br/>Abstract: Jute fabric has been modified using methacrylic acid as the finishing agent in the presence of K₂S₂O₈ and Na₄P₂O₇ catalysts separately or in selected combinations, employing a pad-batch-dry-cure technique. It is found that the treatment with 100g/L methacrylic acid at 30°C and pH 7 using batching time of 60-75 min at 30°C followed by drying of the batched fabric at 95°C for 5 min and curing of the dried fabric at 140°C for 5 min under the catalytic influence of K₂S₂O₈ and Na₄P₂O₇ produces most balanced improvement in the textile-related properties, such as wrinkle recovery angle, flexibility, abrasion resistance, elongation-at-break and resistance to photo-yellowing with retention of strength. <br/> <br/>Page(s): 82-90 Thu, 26 Feb 2009 22:58:59 GMT http://nopr.niscair.res.in/handle/123456789/3387 Title: Influence of softening treatments on hand value of woven fabrics produced from Indian wool and their blends <br/> <br/>Authors: Shakyawar, D B; Behera, B K <br/> <br/>Abstract: The effect of different softening treatments on low stress mechanical properties and hand values of fabrics produced from Indian wool and their blends has been studied. The extensibility, tensile resilience and coefficient of friction of the fabrics significantly (p>0.05) increase after softening treatments, whereas the bending and shear rigidities and their hysteresis, and compressional resilience reduce. The Koshi (stiffness) values of wool and wool blended fabrics decrease by 5-10% of that of untreated fabrics after softening treatments. However, the Numeri (smoothness) and Fukurami (fullness and softness) values increase by 10-40%. The fabrics treated with cationic and amino silicone softeners show total hand value (THV) higher than that of untreated fabrics; THV increases by 5-20% and 10-20% for winter suit and jacket application respectively. The amino silicone softener is more effective than cationic softener. <br/> <br/>Page(s): 76-81 Thu, 26 Feb 2009 22:58:59 GMT http://nopr.niscair.res.in/handle/123456789/3386 Title: Influence of relative density on deformation characteristics of plain weave fabrics <br/> <br/>Authors: Stepanović, Jovan; Milutinović, Zoran; Petrović, Vasilije; Pavlović, Milan <br/> <br/>Abstract: The deformation characteristics of fabrics in relation to relative thread density have been studied. On the basis of experimental results and theoretical models, some real mathematical dependence has been set up, which can be used for projecting breakage characteristics of plain weave cotton fabrics. Equations for projecting breaking characteristics have been developed on the basis of fabrics geometrical model in linen weave and practical results. The equations include correction coefficients, depending on the relative density in fabrics. The results show that the relative thread density in fabrics affects their deformation characteristics. The relative thread density, if higher than 1 causes weaker quality parameters and this must be taken into consideration during designing of fabric. <br/> <br/>Page(s): 69-75 Thu, 26 Feb 2009 22:58:59 GMT http://nopr.niscair.res.in/handle/123456789/3385 Title: Drape behaviour of functional knitted fabrics for sport clothing <br/> <br/>Authors: Filgueiras, Araguacy; Fangueiro, Raul; Soutinho, Filipe <br/> <br/>Abstract: The influence of polyester/functional fibre blends on the drape properties of knitted fabrics for sport clothing application has been studied. Several knitted fabrics have been produced using polyester fibre blended, in different percentages, with functional fibres like Outlast, Dry release, Aquator, Polybutylene terephthalate and Bioactive. The drape and flexural rigidity behaviour of the materials produced have been evaluated to optimize the composition of functional knitted fabrics based on polyester/functional fibre blends. It is observed that the knitted fabrics produced with polyester/Outlast blends show the most interesting drape behaviour. On the other hand, polyester/polybutylene terephthalate and polyester/Aquator fabrics show lower drape behaviour due to the types of fibre used. Moreover, relationships between the amount of functional fibre and the drape and flexural rigidity behaviour are also established. The study is useful to design sport clothing for professional football players. <br/> <br/>Page(s): 64-68 Thu, 26 Feb 2009 22:58:59 GMT