Non woven fabric is a new type of textile material, which is formed by a series of physical, chemical or mechanical treatments of fiber aggregates or fiber stacking layers. Due to its unique structure and manufacturing process, non-woven fabrics have many excellent properties, including heat resistance.
Production materials
Firstly, the heat resistance of non-woven fabrics mainly depends on the degree of heat resistance of their manufacturing materials. The common non-woven materials in the current market mainly include polypropylene (PP), polyester (PET), and nylon (NYLON). These materials have high melting points and hot deformation temperatures, and can be used at relatively high temperatures. For example, the melting point of polypropylene is 160 ℃, the melting point of polyester is 260 ℃, and the melting point of nylon is 210 ℃. Therefore, non-woven fabrics can resist the influence of high temperature environment to a certain extent and have a longer service life.
Production process
Secondly, non-woven fabrics can have a certain degree of heat resistance through special manufacturing processes. Generally speaking, non-woven fabric production processes include hot air method, stretching method, wet method, and melt blown method. Among them, hot air method and stretching method are the most common production processes. In the process of making non-woven fabric, the fibers are heated and subjected to tensile force, forming a relatively dense fiber structure, which makes the non-woven fabric have a certain degree of heat resistance. In addition, by adding special additives such as flame retardants, the heat resistance of non-woven fabrics can also be improved.
The structure of nonwoven fabrics
Again, the heat resistance of non-woven fabrics is also related to their structural characteristics. Non woven fabrics are usually made by stacking several layers of fibers, which are bonded together through methods such as hot melt or plasticization. This structure interweaves fibers, forming a uniform and dense fiber network with high tensile strength and heat resistance. At the same time, non-woven fabrics also have good air permeability and moisture absorption, which can effectively dissipate heat and reduce various problems caused by high temperatures.
Other improvement methods
The heat resistance of non-woven fabrics can be further improved through some treatment methods. For example, the heat resistance of non-woven fabrics can be improved by increasing the softness and thermal stability of the fibers. In addition, special chemical materials such as flame retardants can also be used to treat non-woven fabrics, making them have better fire resistance and high temperature resistance.
Conclusion
In summary, non-woven fabric materials have a certain degree of heat resistance. Its heat resistance mainly depends on the heat resistance of the manufacturing materials, the characteristics of the manufacturing process, the compactness of the structure, and the special treatment conditions. By selecting appropriate materials, optimizing production processes, improving structural characteristics, and conducting special treatments, the heat resistance of non-woven fabrics can be further improved.
Dongguan Liansheng Nonwoven Fabric Co., Ltd., a manufacturer of non-woven fabrics and non-woven fabrics, is worthy of your trust!
Post time: Jul-07-2024