| In21st century, the world of science and technology is undergoing profound changes. More and more people pay attention to the high-tech industry that the automotive industry stands for. The development and application of automotive textiles have become essential, in particular the automotive seating fabric which accounted for the larger proportion in the automotive textiles. Although there have been dozens of professional manufactures at present in China, compared with developed countries there is still a considerable gap. The high-performance chemical fibers required for automotive seating fabrics, high-performance sponge, knitted lining materials, as well as high-end automotive seating fabrics mostly depend on imports. And the seating fabrics produced independently by domestic enterprises still have many problems in comfort, functionality, molding processing and other factors, because of the technology and cost of production. Therefore, studying the performance of automotive seating fabrics has positive significance to the development of innovative seating fabrics.In this thesis, the testing standards for automotive textiles should be selected by compared firstly. And the properties of10kinds of woven PIP seating fabrics and10kinds of woven trim seating fabrics were tested including trapezoidal tearing strength, tensile breaking strength, bond strength, color fastness and anti-pilling. Secondly, automotive seating fabrics were endowed with different performance because of their special composited structure. Tensile breaking strength, resistance to stretch&set, stiffness, flame retardant property of10composited fabrics and their corresponding surface fabrics were tested. And the influences of composite technology on the seating fabrics’properties above were studied.The results indicated that the tearing strength and tensile strength of these two kinds of composited fabrics all met the requirements of standards. There were some substandard specimens that bond strength of two interfaces didn’t reach the minimum requirement of the standard. The color fastness and anti-pilling of these seating fabrics were all good. The average grade of color fastness was greater than4.0, and that of anti-pilling was greater than8.0. So the seating fabrics didn’t have pilling phenomenon after rubbed. After those tested finished, it took integrated evaluation of these seating fabrics by establishing a mode of illegibility math integrated evaluation. The performance sort was set, and it was also found that the integrated performance of jacquard and twill were better than plain weave.It was also found that the strength and elongation of knitted surface fabrics was decreased, and that of woven surface fabrics had little changes after composited. Resistance stretch&set of knitted surface fabrics was higher than that of the knitted composited fabrics, and the woven fabrics had inverse law. The stiffness of seating fabrics was increased after composited as a result of the increase of the fabrics’thickness. Polyurethane sponge had very poor flame retardant performance. So when surface monolayer fabrics were laminated with polyurethane sponge, the flame retardant performance of composited seating fabrics was degraded. There were big changes occurring after the surface monolayer fabrics laminated into composited seating fabrics. And this change can be controlled by the regulation of the structure of surface fabrics, composited technology, sponges’performances, and other factors.Sewing injuries always turned up in actual production. In order to seek the best sewing parameters to get larger sewing strength, this paper also studied the impacts of the distance of stitch and selvage, gauge distance, the types of sewing thread on sewing strength and breaking elongation, and orthogonal experiment was taken. Then the impact of each factors and the optimum parameters were obtained by range analysis and variance analysis. When the distance between stitch and selvage was8cm, the gauge distance was2cm, and the type of sewing thread was D, the strength and elongation on warp direction was the highest. On weft direction, when the distance between stitch and selvage was8cm, the gauge distance was2cm, and the type of sewing thread was E, the strength was the highest. When the distance between stitch and selvage was8cm, the gauge distance was6cm, and the type of sewing thread was A, the elongation was the highest. The results also showed that sewing strength and elongation had the same influence on warp direction, and gauge distance was the most significant factor of sewing process; while, on weft direction sewing strength and elongation had different influences, and the distance of stitch and selvage had the most important influence on sewing process. |
PDF Full Text Request