Advantages of High Elastic Polyester Yarn
Among the various materials used for the making of textile products, high elastic polyester yarns have a lot of advantages. For example, this type of material is capable of offering better air permeability properties. It also can increase the elongation value in both directions.
Co/PBT yarn showed better air permeability properties
Various studies have been carried out to examine the effect of pbt dty yarn on woven fabrics. These yarns are characterized by a number of properties which differ from the traditional elastic yarns. They have great potential to produce lightweight, elastic fabrics for use in apparel. However, these yarns can only be used in certain parts of a fabric.
A study conducted to evaluate the effects of PBT on woven fabrics examined three samples. These fabrics were woven using a Co/PBT core yarn (40 tex) with an 8.3 tex PBT core as the weft. In addition to the usual physical and mechanical properties, breaking elongation was also assessed. Compared with untreated Co/PBT, the weft with a treated yarn showed better air permeability.
The study investigated the influence of PBT on complex fabrics. These samples were woven on a Minifaber laboratory rapier weaving machine with 100% cotton (8 x 2 tex) warp. The tensile properties of the tested samples were evaluated according to standard. The results are shown in Appendix C, Table A9.
PBT filament fabric
YANHUANG polyester pbt filament yarn has a good hand feeling and softness. In addition, it can be dyed and has better chemical resistance than elastane. It has been widely used in fashion industry and has created countless styles of clothing. This kind of fabric has great potential to be used in various fields such as sanitary materials, sportswear, classic clothing, and other types of fabrics.
The study is aimed at evaluating the elongation properties of different woven fabrics with incorporated PBT yarns. The elongation values of the treated samples were measured both in the warp and weft directions. A total of 90 treatments were conducted in this study. The elongation value of samples with PBT was higher than those with elastane. The elongation values were significantly affected by the washing treatment.
The thermal properties of the tested fabrics were also measured. The fabric samples with elastane had better thermal conductivity than those with PBT. However, the difference was not statistically significant.
Woven fabrics with elastane yarns showed higher elongation values in both directions
Using PBT filament yarns, it is possible to produce lightweight elastic fabrics. However, to develop such fabric it is necessary to understand the physical properties of the woven fabric, such as breaking elongation, shrinkage, air permeability, dimensional stability, etc. The pbt polyester yarn following study is conducted to understand the influence of these physical properties on breaking elongation and bursting distension performances.
Breaking elongation of woven fabrics was measured using an Instron 5567 dynamometer. The elongation values were obtained before and after thermal treatment. The results show that after thermal treatment, the fabrics showed higher elongation value in both directions. This is due to the interaction between PBT and the weave.
The fabrics with CO/PBT yarns in the weft had the smallest shrinkage. On the other hand, the fabrics with multifilament PBT yarns in the weft had highest breaking elongation in both directions. The elongation values of the PBT/Cotton sample were 57.2 % and 33.6%, respectively, in warp and weft directions.
Fabric setting and shrinkage
During the process of fabric setting and shrinkage, many factors affect the structure of the fabric. A number of physical properties such as breaking elongation, density, linear density, warp and weft density and mass per square metre are affected. In this study, breaking elongation properties of woven fabrics were determined using polybutylene terephthalate (PBT) yarns. These parameters were measured according to SIST ISO 5081:1996 standard.
A multifactor ANOVA was used to analyze the experimental results. The fdy dty main factor, treatment, had a significant influence on breaking elongation. The interactions between PBT and Weave were also statistically significant in the weft direction.
All samples had an increase in physical properties after treatment. Elongation values at break were three times higher than in untreated fabrics. The average shrinkage of these fabrics was 15%. These increased mechanical and physical properties were mainly due to the increased density of the threads.
The sample with Lycra in the weft had the greatest shrinkage. The weft density changed by 5% on average.
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