Non-woven fabrics play an important role in the automotive market, from cockpit filters and seat covers to trunk linings, acoustic blankets and carpet cloth. In China, according to the current annual output of 700,000 cars, the annual demand for non-woven sound insulation felt will reach about 2.45 million square meters. In China's "Technical Development Project Guide for Textile Industry" from 2000 to 2005, there were 15 projects related to the non-woven fabrics and industrial textile industry. The research content of "research and product development of interior materials for cars" includes knitting. Interior materials, flame retardant, antistatic car woven decorative fleece materials, fiber-based composite materials for structural interiors. The goal is to replace imports, to match the decorative fabrics of cars, meet the requirements of luxury, comfort, and safety, and its flame retardant performance and antistatic performance have reached the domestic leading level.
It has been used in automotive parts since more than 40 years ago. Non-woven fabrics can be used for sound insulation, air filtration, thermal insulation, reinforcement, and to improve passenger comfort and reliability. In addition to these advantages, non-woven fabrics are considered by many automobile companies as economic materials because of their high strength and durability. As the application of non-woven fabrics in automobiles continues to grow, competition among coil manufacturers participating in this market is also intensifying, and research and development work in this area is also intensifying.
Klaus Troeger, the sales manager of Schwarzenbach / Saale, the automobile affairs department of the German Sandler company, said, "In recent years, the requirements of automobile manufacturers have promoted the development of special non-woven fabrics." It paves the way for industrial non-woven fabrics to continue to break through the fields traditionally occupied by woven fabrics. " Consumers' requirements for automotive non-woven fabrics are mainly low-cost, high-efficiency filtering and sound-absorbing materials.
With the continuous introduction of new automotive non-woven fabrics, auto manufacturers are investigating the replacement of more expensive materials such as leather seats with these products. Usually not noticed by drivers or passengers, non-woven fabrics are hidden under seats or carpets, or sewn together with other fabrics to increase strength and durability. Needle-punched fabric supplier Mr. Edward Merchlinsky, general manager of Amoco Fabrics and Fibers Industrial Fabrics Branch, believes that needle-punched fabrics are very suitable for replacing leather as seats because they are more economical and easy to handle in the process of pulling, sticking and sewing , Suitable for sewing.
Non-woven fabric becomes stronger
The environmentally friendly characteristics of non-woven fabrics allow them to be used in automobiles instead of foam products. According to Mr. Dan Kamat, Vice President of Precision Custom Coatings, car manufacturers are increasingly aware of the environmental advantages of nonwovens compared to other materials.
This can be glimpsed from the growth of the PCC needle punched and thermally bonded nonwovens business, which are increasingly used in engine hood linings, car roofs, dashboards, and other small acoustic and thermal insulation interior parts more.
Automakers want to stop using non-recyclable foam materials, and non-woven fabric manufacturers have developed materials that can replace foam and can be recycled. In addition, they can be firmly combined with glass fiber and recycled materials. When stretched, the color is uniform, without wrinkles and tears.
Eswegee Vliesstoffe, a German company specializing in the production of chemically bonded, mechanically consolidated and thermally bonded nonwoven fabrics for automobiles, also feels the trend for nonwoven fabrics to replace woven fabrics, and new stitch-bonded products have been developed for automotive interior parts, such as Car roof or glove box. Other environmentally friendly stitch-bonded fabrics have also been developed to replace foam in composite materials for seats.
Eswegee's composite nonwoven fabric is produced by hot melt lamination, which can be effectively used to replace the more traditional flame bonded woven fabric-foam interlayer material, and can be completely recycled. The company's Techtex stitching line in Mittweida produces Multiknit and Kunit nonwoven fabrics, which can replace foams up to 8mm thick.
The composite material can use glass fiber, carbon fiber, aromatic fiber and the combination of the above fibers to produce multiaxial non-woven fabric with a grammage of 200-2800.
Although non-woven fabrics give cars many advantages and quickly replace traditional fabrics, the needs of car manufacturers and consumers fundamentally determine the style and size of the most popular cars. Naturally, the number and variety of cars sold in a year will have a great impact on non-woven fabric manufacturers. Mr. Merchlinsky of Amoco believes that the trend of car styles, sizes and materials can change very quickly, and the time period can be calculated in months.
Some car manufacturers like bucket seats. This demand will quickly spread in the automotive industry chain, making this market very competitive and manufacturers must therefore be able to respond to this change anytime, anywhere, and provide appropriate products.
The shortened product development cycle has put forward new requirements for enterprises, making them more and more invested in product development, and improving the interaction with OEM manufacturers.
In order to provide a more efficient filter, Kureha chose the ideal combination of synthetic fibers and binding materials such as water-soluble resins to design a thermally bonded nonwoven fabric for vehicles. Used in engines such as engine filters. Such filter materials can be shaped according to specific filters. Colbond also offers Colbon, a thermally bonded nonwoven fabric for cabin filters. Colback is used as a supporting medium for cabin filters, and as a back material for forming automotive carpets and felts. Colback uses two-component filaments with polyester as the core and nylon polyamide as the skin, which has good thermal and mechanical stability. Its polyamide skin can be used as a bonding layer, which is very different from various dyes and coatings. Good affinity.
The main advantage of Colback as a carpet is that it can be preformed and connected with the pile to have good wear resistance. When used as a supporting medium in a filter, it has high toughness, air permeability and homogeneity. Cost is the main driving force for the growth of non-woven fabrics in the automotive market, but it has also become a major obstacle for non-woven fabric manufacturers. Because of the global economic downturn in the past few years, OEMs have exerted great pressure on first- and second-tier automotive suppliers, thus Affects participants in the entire supply chain, including coil producers, because they are also struggling for high-priced raw materials.
Mr. Verbakel of Colbond said that sometimes the excessive attention to the cost of individual components has led to the neglect of the entire cost or the quality of the final product. We have noticed that the laggards in the automotive manufacturing market show a tendency to believe that high output can be used to To meet the excess capacity of their pile production line. This is a bad thing for everyone, not only because of high price pressure, but also logistics and quality requirements. The cost of stalling the original equipment production line per minute is thousands of dollars. Neither the coil producers 'profitable sales nor the automakers' purchase of these materials at below-market prices can compensate for these high risks.
Another trend that Mr. Verbakel noticed is online car auctions, that is, the purchase of cars used to be considered a long-term research process, and has now become a game of anonymous quotation and gambling on the Internet.
envirnmental factor
In addition to price factors, non-woven fabric suppliers are also working hard to produce products that comply with the automobile recycling regulations that will come into effect in Europe in 2006. It requires 1% of automobiles to be recycled, thus opening up many opportunities for recyclable non-woven fabrics. door.
The recycling of cars is more valued in Europe than in the United States, mainly due to the upcoming European law. But global non-woven fabric manufacturers still assure customers that their products are recyclable. North America is also interested in recycling, but because it is not mandatory, it is not as important or strict as Europe. European coil manufacturers involved in the automotive industry are implementing new quality management systems to respond to these regulations.
For example, eswegee has implemented a new quality management system to meet the quality standards of DINENISO9001 and DINENISO14001, VDA6 and EU environmental requirements. In order to standardize the benefits provided to customers, the company's global molecular organizations have implemented this system.
Although some non-woven fabric manufacturers have not completely turned to producing recyclable car products, experts believe that this will be the trend in the next few years. Recyclability is not only beneficial to automobiles, because the demand for high-loft, binder-free pure polyester nonwoven fabrics will increase, while also providing a safer production process for nonwoven fabrics.
Both car manufacturers and non-woven fabric manufacturers are constantly adjusting to adapt to changes in the automotive industry, and the R & D activities of the two have not shown any signs of slowing down.
In the next few years, the most noticeable of non-woven fabrics for automobiles may be sound insulation materials. Sandler has launched sawasorb plus and sawaform products for this purpose. The former is made of pure polyester material with low grammage and low combustion performance. Future products will be market-oriented, combining traditional R & D and customization for customers, and more complex non-woven fabrics will be used in high-tech fields, so it is necessary to recognize future needs and requirements in advance and integrate them in multifunctional fabrics .
Forming Fiber Technology Co., Ltd. (FFT) is a major thermoforming and nonwoven system solution provider and first-line supplier for North American automotive OEMs. Currently, FFT supplies more than 40% of the luggage trim lining to the North American car trunk market. The company is also seeking to continue to expand its market share in this market and other interior components.
In 2003, FFT was acquired by Morgenthaler Partners, which was intended to use this platform as a platform to acquire other fiber solution providers and build a one-stop supplier of fiber products and systems for the automotive and non-automotive markets. FFT also produces pre-spun dyed polyester fibers produced from 100% industrial and civilian recycled materials for industrial textiles.
In addition, the automobile is also widely used as a rubber plate skeleton reinforcement material, a steel ring sheath compounded with rubber, an automobile steering gear connecting ring, a sealing strip, and a modified rubber compound used in mudguards and tire repairs. In the mat, and in the floor. It can improve the strength, wear resistance and flexibility of the components and prolong the service life.
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