No full-text available
To read the full-text of this research,
you can request a copy directly from the authors.
The Effect of Wet Processing on the Comfort and Mechanical Properties of Fabrics Made from Cotton Fibres and Its Blends with Modal and Tencel Fibres in Weft
Abstract
In this modern era, customers demand improved functional fabrics along with some other properties. The product developments can be done in various methods; the blending of various fibres to make fabric with enhanced properties is one of them. The wet processing can affect the comfort properties of fabrics made out of different fibrous material. Here, the effect of wet processing (scouring and dyeing) was studied on the comfort and other properties of plain-woven fabrics made using weft of 100% cotton, 50:50 cotton/tencel and 50:50 cotton/modal blend was studied. The results reveal that the air permeability decreases in all samples (100% cotton fabric, cotton/modal blended fabric and Tencel/cotton blended fabric) after scouring but no significant change has been seen after dyeing. The overall moisture management capacity increases significantly in all samples after scouring and further increases after dyeing. Fabric strength increases after scouring and decreases after dying. The fabric bending modulus decreases after scouring in all fabric samples and there is not significantly change has been seen after dyeing.
ResearchGate has not been able to resolve any citations for this publication.
Textiles are ubiquitous materials that many of us take for granted in our everyday lives. We rely on our clothes to protect us from the environment and use them to enhance our appearance. Textiles also find applications in transport, healthcare, construction, and many other industries.
The revised and updated 2nd Edition of The Chemistry of Textile Fibres highlights the trend towards the synthesis, from renewable resources, of monomers for making synthetic fibres. It contains new information on the influence of legislation and the concerns of environmental organisations on the use of chemicals in the textile industry. New sections on genetically modified cotton, anti-microbial materials and spider silk have been added as well as a new chapter covering functional fibres and fabrics.
This book provides a comprehensive overview of the various types of textile fibres that are available today, ranging from natural fibres to the high-performance fibres that are very technologically advanced. Readers will gain an appreciation of why particular types of fibre are used for certain applications through understanding the chemistry behind their properties.
Students following ‘A’ level courses or equivalent and first-year undergraduate students reading textile technology subjects at university will find this book a valuable source of information.
The worldwide growing need of cotton but its lower production has boosted the production of regenerated cellulosic fibers. This work compares the thermal comfort and mechanical properties of bamboo rayon fiber blends with cotton and other regenerated fibers. So, bamboo rayon fibers were blended with cotton, tencel lyocell, modal rayon, and viscose rayon. One-hundred-percent pure fabrics of bamboo rayon, cotton, tencel lyocell, modal rayon, and viscose rayon were made. Also, 50:50 blends of bamboo rayon with cotton, tencel lyocell, modal rayon, and viscose rayon were prepared. Plain-woven fabrics were made by using yarns of 20 tex. The thermal comfort and mechanical properties were analyzed. It is found that 100% tencel lyocell fabrics give higher mechanical and comfort properties. Similarly, bamboo rayon:tencel lyocell (50:50)–blended fabric gives better thermal comfort and mechanical properties than bamboo rayon:cotton–, bamboo rayon:modal rayon–, and bamboo rayon:viscose rayon–blended fabrics.
Lyocell, a novel cellulosic fiber, has superior mechanical properties along with envi ronmental friendly aspects. Nevertheless, in some applications, its fibrillation behavior is considered to be a drawback. This behavior can be easily measured by the so-called fibrillation index, which is a value indicating the degree of fibrillation of the fibers. This paper investigates the relationship between the degree of fibrillation of Lyocell fibers and three of their physical properties: birefringence, viscosity. and relative crystallinity. Optical microscopy is used to determine the fibrillation indices of Lyocell fibers after being finished with a commercial crosslinking agent in various concentrations. Birefrin gence, viscosity, and relative crystallinity are studied with polarized optical microscopy. the dilute solution technique, and x-ray diffractometry, respectively. The results show that certain concentrations of the crosslinking agent can be used effectively to control the degree of fibrillation. Relative crystallinity and birefringence decrease steadily, while the concentration of crosslinking agent increases. Intrinsic viscosity marked increases when concentrations of crosslinking agent are higher. There are firm relationships between the fibrillation index and these three properties; accordingly, a simple mathematical model is derived to predict the degree of fibrillation in relation to them.
Comparative investigations of new regenerated cellulosic fibers, bamboo viscose fiber and Tencel, together with conventional
viscose fibers have been carried out to explain the similarity and difference in their molecular and fine structure. The analyses
jointly using SEM, XRD and IR reveal that all the three fibers belong to cellulose II. Tencel consists of longer molecules
and has a greater degree of crystallinity, while bamboo viscose fiber has a lower degree of crystallinty. TG-DTG-DSC study
shows three fibers resemble in thermal behavior with a two-step decomposition mode. The first step is associated to water
desorption, suggesting that bamboo viscose fiber holds better water retention and release ability, the second a depolymerization
and decomposition of regenerated cellulose, indicating that Tencel is more thermally stable in this process than bamboo and
conventional viscose fiber.
The use of hollow/microporous yarns plays an important role in enhancing the thermo‐physiological comfort properties of fabrics. Depending on structural variations in hollow yarn, heat and moisture regulation behaviours of fabrics can be affected significantly. In this study, three types of hollow cotton yarn fabrics, produced by introducing polyvinyl alcohol (PVA) filament in the core, PVA staple fibres in the blend and PVA filament in doubling with cotton spun yarn, are studied. All three types of pre‐hollow yarns and reference yarns are made with a variation in spinning technique (single roving/double roving) to prepare eight single jersey knitted fabrics. The hollow/microporous structure of the yarn is created by dissolving the PVA fibres using hot washing of the fabrics. On overall evaluation of the fabric’s thermo‐physiological comfort properties, the doubled hollow yarn fabrics are found to be better than other fabrics. In general, thermal resistance, thermal absorptivity, wicking and drying properties of all types of hollow yarn fabrics increase after repeated laundering, while air permeability, water vapour permeability and water absorbency of hollow yarn fabrics mostly decrease. In contrast with fabrics made from yarn produced through single roving technique, use of double roving technique only improves fabric water vapour permeability.
Objective Evaluation of Fabric Handle. Physical Testing of Textiles
- B P Saville