How much do you know about the flame retardancy of nonwoven fabrics?

Flame retardant non-woven fabric

Polyester flame retardant non-woven fabric is the main component of polyester, viscose fiber is a chemical fiber, is terephthalic acid or diethyl terephthalate and ethylene glycol polymerization products.Features 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, flame retardant, is a kind of material additives, generally used in polyester plastics, textiles, etc., added to polyester by improving the ignition point of materials or hinder the burning of materials to achieve the purpose of flame retardant, so as to improve the fire safety of materials.

There are many kinds of flame retardants, such as halogen flame retardants, organophosphorus flame retardants and phosphorus - halogen flame retardants, expansion flame retardants and inorganic flame retardants.At present, the most widely used halogen flame retardants are bromine flame retardants.

Polypropylene fiber is a synthetic fiber made of propylene as raw material. It has the following characteristics: high strength, good wet strength and dry strength, wear resistance and corrosion resistance.

Viscose fiber belongs to regenerated cellulose fiber, with good moisture absorption, breaking strength than cotton is small, environmental protection, non-toxic, high price than other fiber characteristics.

Flame retardant non-woven fabric can be divided into flame retardant knitted cotton and flame retardant hot air cotton.Flame retardant knotted cotton is made of tangled fibers after puncture by needling machine.Flame retardant hot air cotton is mainly formed by hot air through furnace after net laying.Both products have their own characteristics, common is fire retardant, lightweight, warm, durable, environmental protection.

Test standards are US CFR1633, UK BS5852 and US TB117 standards.

Comparison of flame retardant products

CFR1633 can pass the test of the product features: flame retardant, melt resistance, a small amount of flue gas, do not release gas, with self-extinguishing effect, carbonization can keep the original state, moisture absorption, breathable, soft feel, elastic lasting, mainly suitable for export to the United States high-grade mattress.

BS5852 test standard product features: at present, the European market for soft furniture mattresses and seats mandatory flame retardant requirements, at the same time the requirements of soft and hard hand adjustable, good fire performance, automatic extinguishing within 30 seconds, mainly suitable for export to the European market, high-end sofa used more.

The TB117 test features products with relatively low fire resistance requirements and maximum burn time of no more than 8 seconds, suitable for textiles and furniture exported to the United States.