Purpose
– The purpose of this paper is to present the thermal comfort properties of single jersey knitted fabric structures made from bamboo, tencel and bamboo-tencel blended yarns.
Design/methodology/approach
– Bamboo, tencel fibre and blends of the two fibres were spun into yarns of identical linear density (30s Ne). Each of the blended yarns so produced was converted to single jersey knitted fabrics with loose, medium and tight structures.
Findings
– An increase in tencel fibre in the fabric had led to a reduction in fabric thickness and GSM. Air permeability and water-vapour permeability also increased with increase in tencel fibre content. The anticipated increase in air permeability and relative water vapour permeability with increase in stitch length was observed. The thermal conductivity of the fabrics was generally found to increase with increase in the proportion of bamboo.
Research limitations/implications
– It is clear from the foregoing that, although a considerable amount of work has been done on bamboo blends and their properties, still there are many gaps existing in the literature, in particular, on thermal comfort, moisture management and spreading characteristics. Thus the manuscript addresses these issues and provides valuable information on the comfort characteristics of the blended fabrics for the first time. In the evolution of this manuscript, it became apparent that a considerable amount of work was needed to fill up the gaps existing in the literature and hence this work which deals with an investigation of the blend yarn properties and comfort properties of knitted fabrics was taken up.
Originality/value
– This research work is focused on the thermal comfort parameters of knitted fabrics made from 100 per cent tencel yarn, 100 per cent bamboo yarn and tencel/bamboo blended yarns of different blend ratios.
The objective of this study was to develop a thermoregulated cotton fabric using novel nanoencapsulated phase change material that contains paraffin wax as core and urea-formaldehyde as the shell material using in-situ polymerization method. The nanocapsules were fixed on the fabric surface using pad-dry-cure method. The morphology and chemical structures were measured using scanning electron microscope and Fourier transform infrared spectroscopy, respectively. The thermal properties and stabilities were measured using differential scanning calorimetry and thermogravimetric analyzer. The fabric properties such as tensile strength, water absorption, and abrasion resistance were also studied. The average diameter of the nanocapsules was found to be 256 nm. The latent heat energy storage capacity of the fabric containing 20 and 40 wt.% nanocapsules was 1.52 and 1.91 J/g, respectively.
This article deals with development and characterization of cotton and organic cotton flat knit bandages for wound healing. Bioploymers such as chitosan-sodium alginate, sodium-calcium alginate, and their mixtures were coated on the bandage and subjected to Fourier transform-infrared and scanning electron microscope analysis. Bacteria present in infected wound samples were identified using different bio-chemical methods. Three antibiotic drugs were selected based on the antibiotic sensitivity test and incorporated into the polymer-coated samples to improve the antibacterial and wound healing properties. Further, the antibacterial activities of the samples were evaluated against the identified bacteria in the wound for about 4 days. The strongest antibacterial activity was found in chitosan-sodium alginate-calcium alginate coated with chloramphenicol and tetracycline hydrochloride drug-loaded cotton and organic cotton samples. Hence, these bandages are suitable for quick wound healing process.
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