The extrusion of ultra high molecular weight polyethylene (UHMWPE) fibres cannot be achieved by conventional extrusion processes due to its very high melt viscosity. To overcome this limitation, UHMWPE is first dissolved in a petrochemical to form a gel before extrusion. The petrochemicals used to dissolve the polymer then need to be removed using other chemicals making the process unfriendly to the environment. This article is focused on finding an environmentally friendly, natural solution to replace these chemicals and altering the process to potentially reduce the process cost.
The textile dyes and fixing agents that used in dyeing process are major contributor to environmental pollution. In the
present study, three different organic mordants (Sodium Citrate, Ammonium Acetate, and Potassium Acetate) are used
in exhaust dyeing as mordants. Effect of mordant concentrations is studied on fastness properties (color change,
rubbing fastness & light fastness) of cotton dyed with reactive dyes using these organic mordants. Comparison of these
mordants with conventional fixing agent (NaCl) is also studied in order to evaluate the difference between fastness
properties of conventional and organic salts used in this study. We found that the color fastness properties of
conventional and organic salts are comparable, better in case of sodium citrate. Similarly color depth on fabric after
dyeing with organic as well as inorganic salts is measured using data color. Results confirm that higher values of K/S
are obtained for organic salts by using lower organic salt concentration compared to conventional salt. Reduction in total
dissolved solids (TDS) of dye effluents is obtained from 6% to 29% for three organic salts as compared to conventional
salt.
The study was aimed to develop a knitted denim fabric and investigate its properties. The said fabric has similar visualappearance to the woven denim fabric, offering additional stretch properties. The twill effect was produced on circularknitting machine using cross terry structures. Woven denim fabric was also produced to compare its properties withknitted denim. The Physical and comfort properties of these fabrics like air permeability, thermal resistance and moisturemanagement, were investigated. Experimental investigation of serviceability i.e Pilling was also carried out. The purposeof study is to compare both woven and knitted denim fabric properties.
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