Application design of flame retardant fabric in automobile

Application design of Flame retardant fabric in automobile
In recent years, with the rapid development of economy, China has gradually become the largest automobile production and sales country in the world. Cars have become indispensable tools for people to go out. Although the arrival of cars has brought great convenience to human life, all kinds of traffic accidents also pose a great potential threat to the life and property safety of drivers and passengers. [1] A survey shows that [2-3], the fire threat is the most serious of all traffic accidents, because the vast number of automobile interior products are flammable.
To solve this problem, design a flame retardant seat has a very important significance. During car interior decoration, more car owners require interior fabric to be flame retardant and breathable, but also need to have a spacious car interior space, a wide field of view and comfortable seat feel [4]. At present, most of the car seat cover fabric is of woven fabrics and knitted fabric as the foundation, has many excellent properties, these properties include good permeability, elasticity, extensibility, soft and comfortable wearing [5]. As flame retardant polyester yarn is excellent in its comprehensive properties such as flame-retardant, dyeing and abrasion resistance, and its wide range of applications is [6-10]. Therefore, this experiment uses flame retardant polyester yarn as raw material to develop a knitted Flame retardant fabric that meets the requirements of automotive interior decoration. The 1 part test 1.1 test material selection selection of single yarn fineness is 19.4tex flame retardant polyester yarn and ordinary polyester yarn as raw material of flame retardant automobile seat. The basic properties of the flame retardant polyester yarn are as shown in 1. 1 basic parameters of combustion flame retardant polyester yarn speed (mm / min-1) = 70 = 32 /% LOI / P > 6500 * 10 - 6 combustion performance difficult to burn 1.2 knitting weaving machine: STOLLCMS530HP computer automatic flat knitting machine. The way of yarn: three strands of yarn. Machine number: 14 pin /25.4mm. 1.3 fabric design. This experiment is made of flame retardant polyester and ordinary polyester yarn. 5 kinds of mixing proportion are designed. The ratio of flame retardant polyester yarn to ordinary polyester yarn is 1: 0, 2: 1, 1: 1, 1: 2, 0: 0, respectively. In the design of fabric weave, considering the poor wearability and strength of the single fabric, the test was made of rib air layer, border knitting and half border knitting. 15 knitted fabrics were obtained. The knitting of 3 kinds of tissues is shown in 1, and the specification parameters of the part of the fabric are shown in 2. With the analysis of 2 physical index test 2.1 fabric performance test of 2.1.1 15 on the test sample surface density the test pattern thick degree as shown in figure 2.
From the two, we can see that, under the same yarn ratio, the double-sided structure and 5 kinds of Mixed Knitted flame retardant fabrics are made. Single factor analysis of the fabric structure and mix proportion influence on flame retardant properties, and Borda method was used to judge the flame resistance, abrasion resistance, comfort and other indicators of the fabric, the final analysis is required to meet the automotive interior structure for Milano, flame retardant polyester and polyester (ratio of 2016,45 10) surface air layer density of rib and half cardigan than cardigan. Milano weaving, knitting needle first way all plain, Second Road third road all needle needle weaving, 1+1 rib, woven fabric are relatively thick and stiff. The semi border and border arrangement are all circles, so the woven fabric is thinner than the air layer.
In addition, the air layer horizontal stripes recessive effect, if appropriate to increase the number of air layer, the horizontal stripe effect is more obvious. 2.1.2 shrinkage test using M (resistance): m (polyester) 3 kinds of organization structure 1 =2: fabric, using Y (B) 089A type automatic shrinkage test machine and oven, select a certain dose of detergent according to standard requirements, operate in accordance with the test procedure, after testing, the amount of the zonal distance data as shown in figure 3. 3 fabric shrinkage test results of fabric weave Milano semi cardigan cardigan warp weft shrinkage shrinkage of /%3.23.54.0 /%2.53.33.6 can be drawn from the 3 minimum shrinkage rib air fabric, the half cardigan, finally cardigan. From the 3 kinds of fabrics woven in it can be seen that the organization is composed of air layer rib rib peace needle tissue compounded with respect to the coil set ring can be transfer less lateral extension of smaller, more stable fabric size; and half cardigan and cardigan for tuck organization, its fabric the coil transfer a greater amount of shrinkage test was also greater. The wear resistance of 2.1.3 YG401C Martin Dyer automatic fabric flat grinding apparatus, according to GB/T21196.4 - 2007 "Martin Dyer textiles (Martin? Dale) method for determination of abrasion resistance of fabrics - Part fourth: assessment of appearance change", the M (resistance): m (polyester) =2: 3 1 the fabric was tested, the test results as shown in figure 4.
The test results of 4 abrasion resistance of fabric structure grade Milano 4 half cardigan 3 cardigan from 4 grade 3 can be seen: the wear resistance of the organizational structure of Milano was the best, half cardigan, cardigan is the worst. In weaving, the thicker rib air layer has more organization points, more contact points with the grinding surface under the unit area, and the coil is not easy to transfer, so its wear resistance is stronger than the other two. The 2.1.4 bursting strength is referenced to the national standard GB/T19976 - 2005 "steel ball method of bursting strength". According to the required parameters, 3 different organizations of M (resistance): m (polyester) =2: 1 are tested, and the average burst strength is 5. 5, the test results of fabric bursting strength. The average rib breaking strength of sample rib, air layer, half border knitting and border weaving is 5 from /N385.02362.98329.56.