繊維科学および工学ジャーナル

Natural and synthetic fibre has gained wide application in science and technology. They are now used as reinforcement material for composites in automobile, aviation, textile, apparel and other related industries. In spite of their inherent drawbacks (disposal method, anisotropic nature, production cost and technical complexities) natural fibres present a wide range of advantages ranging from availability, eco-friendliness and a reasonable competitiveness with sheet metals and other counterparts. Natural fibres, in particular, offer light weight as well as good strength when used both as a reinforcement material in various matrix configurations. In this article, the behaviour and response of samples of a 4-ply viscose rayon material loaded in tension is investigated. The response of viscose-rayon yarn in various tensile loading configurations was carried out. Two types of single fibre multifilament material is cut out from separate spools 1840 dtex and 2440 dtex; the remaining two samples tested were plain woven fabric – single and 4-layer. These tensile tests were done to estimate the maximum yield strength of the material and the onset of plastic behaviour. A Unit Cell (UC) of the material is developed in TexGen, commercial software, as a Representative Volume Element (RVE). The model is imported into an FEA tool and the simulation results are compared. Symmetry and periodic boundary conditions are imposed using the planar symmetry function in Ansys and the simple Dirichlet boundary condition in terms of displacement. The results showed good agreement with the experimental results and helped to characterize the material for further use in composite development.

Yarn, the fundamental unit of textile production, is a complex yet essential component in the creation of fabrics and garments. Understanding the intricacies of yarn manufacturing is crucial for anyone involved in the textile industry, from designers to manufacturers and consumers. This comprehensive guide explores the process of yarn production, from raw materials to finished products, unraveling the secrets behind yarn construction, types and applications. By delving into the techniques and technologies involved, this article aims to provide readers with a deeper appreciation of the art and science of yarn manufacturing.

Yarn production, an age-old craft steeped in tradition, seamlessly blends artistry and scientific precision. This article delves into the intricate world of spinning, exploring the fusion of creativity and technology that underpins yarn manufacturing. From ancient spindle techniques to modern industrial processes, we unravel the complexities of yarn production, shedding light on the artistry, innovation and sustainability driving the industry forward.

This paper aims to analyse the published works on nonwoven garments and underline the area of improvements in the nonwoven hydro entangled fabrics and how the properties limitations such as shearing rigidity, drape and thermal properties of nonwoven can be addressed through adopting special techniques of pattern-making that enable nonwoven hydro entangled fabrics for garment manufacturing. A garment's mechanics largely depend on the fabric properties and other factors like design and pattern making. Historically, nonwoven garments started from paper clothing in 1960 but could not succeed because of ill fit, lack of adequate strength and flammability. Over time, advanced technology and innovative materials enhanced the functionality of nonwoven fabrics that support the nonwoven fabric entering the clothing industry as the main fabric. Research institutes and research companies developed nonwoven garments using advanced nonwoven fabrics such as Tyvek® and Evolon®. However, medical and processing industries could only commercialise nonwoven fabrics as the main body wear for single-use or multi-use protective garments. Lack of drape, high shearing rigidity and minimal conforming properties of nonwoven fabric are the highly challenging areas of hydroentangled nonwoven fabrics for clothing application. Adopting an appropriate pattern technique mechanism can enhance functionality and comfort, where nonwoven garments perform expectedly.