First, flame retardant non-woven fabric can be divided into three categories according to material: polyester flame-retardant non-woven fabric, polypropylene flame-retardant non-woven fabric and viscose flame-retardant non-woven fabric. This is mainly divided according to their main components.
The main component of polyester flame retardant nonwoven fabric is polyester, polyester fiber belongs to chemical fiber, it is the product of polymerization of terephthalic acid or diethyl terephthalate and ethylene glycol.
Characteristics are as follows: high strength, good elasticity, good heat resistance, smooth surface, good wear resistance, good light resistance, corrosion resistance, poor dyeing. Its flame retardant mechanism is mainly to add flame retardant, is a material additive, generally used in polyester plastics, textiles and so on, added to polyester by increasing the ignition point of the material or hinder the material burning to achieve the purpose of flame retardation. In order to improve the fire safety of materials. There are many kinds of flame retardants, including halogenated flame retardants, organophosphorus and phosphorus-halogen flame retardants, intumescent flame retardants and inorganic flame retardants. The most commonly used halogen flame retardants are bromine flame retardants. Polypropylene fiber is a synthetic fiber made from propylene. Its characteristics are high strength, good wet and dry strength, wear resistance and corrosion resistance. Viscose fiber is a kind of regenerated cellulose fiber with good moisture absorption, less breaking strength than cotton, environmental protection, non-toxic, and higher price than other fibers. Flame retardant non-woven fabric can be divided into flame-retardant needle cotton and flame-retardant hot air cotton according to the process. Flame-retardant needle cotton is formed by fiber entanglement after puncture by needle punching machine, and flame-retardant hot air cotton is mainly formed by hot air passing through furnace after laying net. Both products have their own characteristics, the common is flame retardant, light, warm, durable, environmental protection. Test standards are the United States cfr1633, the United Kingdom bs5852 and the United States tb117 standards.
Second, the company's flame-retardant cotton products introduced Lianying's flame-retardant cotton products with flame-retardant, anti-droplet effect, can effectively form a flame retardant firewall.
①United States CFR1633 test content: during a 30-minute test period, the maximum calorific release peak of the mattress or mattress suit shall not exceed 200KW, within the first 10 minutes of release, Total heat release must be less than 15 MJ , use: mainly used in mattresses, cushions, sofas, seats and home textile products.
②UK BS5852 main test standard: main test cigarette butts and acetylene flame simulation matches, Also look at the damage length, basically using a lighter to burn vertically on the surface of the textile for 20 seconds, and within 12 seconds after leaving the flame, the flame automatically extinguishes.
③ USA 117 test content: cigarette test, The overburning part is not more than 80 inches, the average burning length is not more than 3 inches, the maximum burning length is not more than 4 inches, the average burning time is not more than 4 seconds, the longest burning time is not more than 8 seconds, and the mass loss of open fire combustion is not more than 4%. Role: fire proof use: soft furniture, mattress, toys, home textile products material: polyester fiber three, flame retardant products can be tested by the United States CFR1633 characteristics of products: flame retardant, melting resistance, a small amount of smoke, no release of gas, self-extinguishing effect, After carbonization can remain intact, moisture absorption, breathable, feel soft, elastic durable, mainly suitable for export to the United States high-end mattresses. Through BS5852 test standard product characteristics: at present the European market for soft furniture mattresses and seats of the mandatory flame retardant requirements, at the same time requires that the handle soft and hard adjustable, good fire resistance, within 30 seconds automatically extinguished, mainly suitable for export to the European market, High-grade sofa adopts more. The characteristics of the products which can pass the tb117 test in the United States have relatively low fire resistance requirements and the longest burning time is not more than 8 seconds. It is suitable for textiles and furniture exported to the United States.
