What standards do non-woven fabrics need to meet as automotive interior materials?

Nowadays, many materials in car interiors are made of non-woven fabrics. For example, car roofs, car floor mats, car interior decorations, etc. are all made of non-woven fabrics, so as car interiors, What are the requirements for non-woven fabrics? Below we have summarized four points for everyone to understand. 1. Breathable and moisture permeable Needle-punched non-woven fabrics are generally used for car interiors. They are all used in low- and mid-range cars, and are generally divided by the Camry class. Needle punching and stitching are generally used for low- and medium-sized cars, and high-end cars are woven with spunbonded non-woven fabrics when the roof is formed. There are two kinds of non-woven fabric and knitted fabric. Non-woven fabrics also have: needle punching, stitching (mainly horsepower and Frisian stitching), depending on whether you use it for fabric or ceiling reinforcement. Mid-to-high-end materials. Now more and more cars are using this material. Non-yarn stitched roof: polyester material, with a loop structure, which is very similar to warp knitting, and is characterized by good elasticity in the thickness direction. Needle-punched ceiling: polyester material, the effect is fluffy, the price is low and medium, and it is used in many cars and vans. 2. UV and light resistance. Automotive textiles must have good light resistance and UV resistance. Large heat and cold cycles may affect the fading and degradation of the fabric, not only affecting the service life of the material, but also greatly affecting the aesthetics of the fabric after the fading of the textile. As the sun sets, the temperature inside the car drops and greatly affects the relative humidity of the car cabin. As the sun rises, the temperature inside the cabin can reach 130°C under certain extreme weather conditions. In order to meet the requirements of daylighting and automobile lightweight in modern automobiles, window glass began to occupy a large area, which caused the interior space of automobiles to be affected by light. 3. Atomization performance The surface area of u200bu200bthe fiber on the front of the velvet fabric is large, and the fogging phenomenon will be more serious. It will cause serious fogging due to the accumulation of chemical reagents used in the process of yarn weaving, dyeing and finishing. This problem must be strict control. The surface area of u200bu200bthe fiber on the front of the velvet fabric is large, and the haze phenomenon will be more serious if the fabric has not been stented for a long time. Therefore, automotive interior fabrics must have certain anti-fogging properties. The 'rime' on the window glass is difficult to remove, which will seriously affect the sight of the drivers and passengers, and the volatile matter suspended in the air may be inhaled into the human body, thereby affecting people's health and safety. These volatile substances will volatilize when heated and condense on the car windows and windshield, forming a kind of 'rime' phenomenon on the surface. Therefore, the finished car interior materials may contain many low-molecular volatile substances. Automotive interior materials will undergo various functional finishing before use, and adhesives will be used during installation. 4. Abrasion resistance The common test methods for the abrasion resistance of automotive textiles are Martindale method and taber abrasion tester. The car seat fabric needs to have high abrasion resistance, so that it does not ball or snag during use to ensure the aesthetics of the seat. In some cases, it may be used for more than 10 years or even longer. Under normal circumstances, seat fabrics should be used for at least 2 years. Abrasion resistance is the most important requirement for car seat fabrics and steering wheel fabrics. 5. Flame-retardant performance Special attention should be paid when selecting. Generally speaking, the horizontal combustion test method is commonly used to evaluate the flame retardant performance of automotive interior materials. Its thermal performance and combustion performance are also different. Various fibers may be used in automotive textile materials, and their composition and chemical structure are different, so that once the car is in a fire hazard, it can ensure that passengers have enough time to leave or reduce the risk of fire. Automotive interior materials, especially textiles, must have good flame retardancy and flame retardancy, and flame retardant non-woven fabrics must be used. The above is the summary of the detailed content about the standards that non-woven fabrics need to meet as automotive interior materials. If you don't understand, you can directly contact the relevant technical personnel of the company.