As an indispensable part of the national economy and people's livelihood, textiles are divided into three categories according to their uses: clothing textiles, decorative textiles and industrial textiles. They occupy an important position in people's daily life. However, textiles are relatively easy to burn due to their constituent raw materials. In recent years, there have been many reports of fires caused by improper storage of textiles or fire during use, which has brought a greater impact on the personal and property safety of consumers. Therefore, textiles need different degrees of flame retardant finishing, so that it can not only provide consumers with material needs, but also effectively improve safety. With the advancement of textile technology and the continuous improvement of people's living standards, the research on flame retardant finishing of textiles has also been further developed, and certain research results have been achieved.
Production method of textile flame retardant fiber
Different from ordinary fibers, flame retardant fibers have good flame retardancy and can delay the spread of fire. Flame retardant fibers can be divided into two categories, one is that the fibers themselves have certain flame retardant properties, such as poly-m-phenylene isophthalamide fibers, polyamide-imide fibers, etc., which have been widely used in various High temperature resistant and flame retardant working environment; the other type is obtained by modifying conventional fibers.
Due to the wide source, large quantity and low price of conventional fibers, they are the most commonly used raw materials for general flame retardant products. According to the different ways of combining flame retardants and fiber macromolecules, conventional methods of fiber flame retardant modification can be roughly divided into the following categories:
Copolymerization method: The flame retardant effect is lasting, but the process is complicated and the cost is high.
Blending method: also called additive method, the durability is not as good as fibers produced by copolymerization method.
Skin-core composite spinning method: The fiber has good stability, high strength and uniformity, but the equipment is complex and expensive, and the cost is too high.
Textile flame retardant finishing method
The flame retardant finishing of fabrics refers to the process in which flame retardants are coated on fabrics by physical (adsorption, deposition, adhesion) or chemical (chemical bonds) bonding. The flame retardant treated textiles cannot be ignited by open flames, the flame spread speed is reduced, and the combustion performance is reduced. Thick carbon layer.
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