Today everybody wishes for that his/her dress retains just ironed shape. Wrinkle free finishes provide wrinkle free and soft look fabric. Wrinkle free finishes are broadly used in the textile industry to impart wrinkle-resistance to cellulosic materials such as cotton fabric. The application of wrinkle resistance (permanent or durable press) finishes on the fabric improves their wrinkle resistance property. Because of increasing demand for pure cotton fabrics, permanent press finishes are being used on these clothes. In conventional durable press finishing, there are two types of products used (resin type and reactant type). Both of these products contain formaldehyde which cause human carcinogen. Hence durable press finishes free of formaldehyde with trade namesTexicil DC, Knittex RCT, Arkofix NEC and Arkofix ELF (Dihydroxi ethylene urea and Demethyldihydroxi urea) were used in this research study. The present work endeavors to optimize the application of these wrinkle free finishes at various concentrations trying different techniques of applying these finishes on pure cotton fabric for best manufacturing results. The results revealed that the finish Arkofix ELF and Arkofix NEC showed superior results at the concentration level 120 g/l under Pad-flash -cure method of application for the wrinkle free property of the fabric.
There have been three major concerns regarding the clothing comfort, psychological, sensorialand thermo-physiological comfort. However, there is lack of work on thermo-physiological comfort ofknitted fabric. Hence the present study is conducted to fulfill this gap by analyzing physiological comfortin sense of air permeability, absorbency, vertical wicking and drying time of plain knitted fabric. Clothingcomfort is mainly affected by type of fibres, yarn properties, structure of fabric, finishing treatments, andclothing conditions. In this study the effect of various yarn counts and polyester/cotton blend ratios on thecomfort of knitted fabric has been analyzed using Statistical Package for the Social Sciences (SPSS). Itis depicted from the results that the selected variables put direct influences on the thermo-physiologicalcomfort of the knitted fabric. The increasing share of polyester in the blend and the fine count for yarnput negative impact on the comfort of the knitted fabric.
Polymer nanocomposites based on polylactic acid (PLA) and graphene (Gr) were blended via melt blending and solution mixing. The properties of hardness and melt flow index (MFI) were investigated with variables of Gr loading from 0.5–2.0 wt.% and the effect of poly(ethylene glycol) (PEG) as plasticizer. The PLA/Gr nanocomposites exhibited higher hardness compared with neat PLA for both methods of nanocomposites preparation which were due to stiffness effect from nanofiller. The loading of PEG in the PLA nanocomposites resulted in the slightly decreasing of hardness. The hardness of PLA and PLA nanocomposites obtained from melt blending were higher than hardness from solution mixing where 2.0 wt.% Gr loading in PLA exhibited maximum value which was 83.1 Shore D. The significant improvement on the MFI could be seen with plasticizer loading compared to unfillled PEG in PLA blends obtained from both methods. Again, the MFI values of PLA/Gr showed from melt blending were higher than exhibited from solution blending method. The highest MFI was 70.6 g/10 min, obtained from 0.5 wt.% Gr loading in PLA/PEG/Gr nanocomposite. The morphology study from Field Emission Scanning Electron Microscopy (FESEM) analysis confirmed the interfacial interaction and homogeneity of Gr in PLA in order to enhance the hardness and MFI properties as discussed above.
Siro yarns are spun from two separate roving of same type of materials. Similarly in textile arts,folding is a process used to create a strong and balance yarn by putting together two separate yarns. Hence,this research study was carried to analyse the quality of Siro-spun and two fold yarns under the influenceof twist factor with special reference to their tensile properties. The results disclosed better tensile propertiesof yarn made from Siro spinning technique as compared to two plied yarn. This indicates the supremacyof Siro-spun yarn over two fold yarn. These findings enhance the fact that Siro spinning technique producesbetter quality yarn as compared to conventional ring spinning technique.
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