The flame retardant effect of nonwoven fabric refers to the ability of the material to prevent the spread of fire and accelerate combustion speed in the event of fire, thereby protecting the safety of products made of non-woven fabric and the surrounding environment.
Non woven fabric is a material formed by textile machinery or chemical treatment using continuous fibers or short fibers as raw materials. Due to its lightweight, breathable, wear-resistant, non-toxic and non irritating characteristics, it is widely used in medical, health, agriculture, industry, construction and other fields.
However, in some special industries such as electronics, aerospace, forestry, etc., non-woven fabrics have high requirements for flame retardant performance. Therefore, in the process of manufacturing non-woven fabric products, manufacturers usually take various measures to improve their flame retardant effect.
Raw material selection
Firstly, the flame retardant effect of non-woven fabrics is related to the selection of raw materials. Some raw materials with flame retardant properties, such as flame retardant fibers, flame retardant fillers, etc., can improve the flame retardant ability of non-woven fabrics through processes such as mixing, hot melting, or wet treatment. Flame retardant fibers have high heat resistance and self extinguishing properties. They can immediately melt when encountering a fire source, preventing the continuous spread of flames and thus avoiding the occurrence and expansion of fires.
Production process
Secondly, the flame retardant effect of non-woven fabrics is related to the textile process. By adjusting the textile process parameters of non-woven fabrics, such as spinning temperature, spinning speed, water spray speed, etc., the fiber structure and density of non-woven fabrics can be controlled. This regulation can make the arrangement of non-woven fibers more compact, thereby reducing the breathability of flame retardant materials and preventing the spread of fire.
Flame retardant
In addition, certain flame retardants can also be added in the production process of non-woven fabrics to improve their flame retardant effect. Flame retardant is a chemical substance that can release a large amount of flame retardant gas or form a heat-resistant structure when exposed to high temperatures. By adding an appropriate amount of flame retardant, non-woven fabrics can hinder the occurrence and expansion of combustion when encountering flames. Common flame retardants include bromine based flame retardants, nitrogen based flame retardants, phosphorus based flame retardants, etc. These flame retardants can interact with the resin structure of non-woven fabrics, changing the physical and chemical behavior of non-woven fabric combustion, thereby achieving the effect of preventing the spread of fire.
However, it should be noted that the flame retardant effect of non-woven fabrics is not constant. When non-woven fabrics are exposed to high temperatures or large areas of flame exposure, their flame retardant effect may be reduced. In addition, when using non-woven products, it is still necessary to follow the basic principles of fire safety, such as staying away from open flames and avoiding prolonged exposure to high temperatures.
Conclusion
In summary, the flame retardant effect of non-woven fabrics depends on multiple factors, including the selection of raw materials, regulation of textile processes, and the use of flame retardants. By adding materials or chemicals with good flame retardant properties during the manufacturing process, the flame retardant effect of non-woven fabrics can be improved. However, in order to ensure the safety of non-woven products, it is still necessary to pay attention to the usage environment and fire prevention measures, and timely replace aged or damaged products.
Dongguan Liansheng Nonwoven Fabric Co., Ltd., a manufacturer of non-woven fabrics and non-woven fabrics, is worthy of your trust!
Post time: Jul-09-2024