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Characteristics and uses of flame retardant fabrics

Characteristics and uses of flame retardant fabrics Tag: Flame retardant fabric, flame retardant cloth, cotton flame retardant fabric, C/N flame retardant fabric, CVC flame retarda…

Characteristics and uses of flame retardant fabrics


Flame retardant fabric, flame retardant cloth, cotton flame retardant fabric, C/N flame retardant fabric, CVC flame retardant fabric

The production process of flame retardant fabrics and the use of flame retardants can be roughly divided into two categories: flame retardant treatment of fibers and flame retardant finishing of fabrics:
Flame retardant treatment of fibers: 1. The flame retardant mechanism refers to the Combustible raw fibers (such as polyester, cotton, and acrylic) are added with certain flame retardants to inhibit free radicals during the burning process; or to change the thermal decomposition process of the fiber and promote dehydration and carbonization; some are flame retardant The agent decomposes and releases non-combustible gas which covers the surface of the fiber and isolates the air. 2. Flame retardant treatment methods 1) Improve the thermal stability of fiber-forming polymers 2) Flame retardant modification of raw filaments Flame retardant finishing of fabrics: 1. Flame retardant mechanism 1) Covering layer theory: Flame retardants can It forms a glassy or stable foam covering layer, which has heat insulation, oxygen insulation, prevents flammable gases from escaping outward, and plays a flame retardant role. 2) Non-combustible gas theory: The flame retardant decomposes into non-combustible gas when heated, and the concentration of combustible gas decomposed from cellulose is diluted to below the lower combustion limit. 3) Endothermic theory: Flame retardants undergo endothermic reactions at high temperatures, lowering the temperature to prevent the spread of combustion. In addition, the heat can be transferred out quickly after fabric finishing, so that the cellulose cannot reach the temperature of ignition and combustion. 4) Chemical reaction theory (catalytic dehydration theory): The flame retardant reacts with the fiber as a Lewis acid at high temperatures, causing the fiber to catalytically dehydrate and carbonize, reducing the generation of flammable gases. Flame-retardant fabrics are divided into components according to their composition: 1. Elastic flame-retardant fabric – This kind of fabric is blended with 95% cotton fiber and 5% spandex fiber. In addition to the excellent characteristics of cotton fiber, it has elasticity due to the addition of spandex, so it is more comfortable to wear and has better wrinkle resistance after being made into clothes.
2. Cotton flame-retardant fabric – This fabric is composed of 100% natural fiber “cotton” and has the characteristics of breathable, moisture-permeable, comfortable to wear, soft to the touch and other characteristics of cotton fiber. There are various specifications such as twill, plain weave, satin and weft knitted fabrics. 3.C/N flame retardant fabric – This fabric is blended with 88% cotton fiber and 12% nylon fiber. It has the characteristics of good wear resistance, better strength, and softer feel. The wear life of the work clothes made of it can be extended by more than 50%, and it can better prevent sparks, arcs, metal droplets, etc. 4. CVC flame retardant fabric – This fabric is blended with more than 60% cotton fiber and less than 40% polyester fiber. It combines the excellent characteristics of cotton and polyester fibers, and has the characteristics of good strength, good durability and wrinkle resistance.
Characteristics of flame-retardant fabrics: 1. Excellent permanent flame-retardant and fire-retardant properties. Washing and friction will not affect the flame-retardant properties. 2. Good safety. When the fiber encounters fire, it releases low smoke and does not release poisonous gas. 3. Using conventional fiber as a carrier, it does not produce harmful elements and meets environmental protection requirements. 4. Good thermal insulation, providing all-round thermal protection. 5. The fabric has the moisture absorption and release properties of conventional fibers, and has the characteristics of soft feel, comfort, breathability, and warmth retention. 6. Post-finishing flame retardant is mainly used for fabrics made of cotton or low-proportion chemical fibers, and flame-retardant fibers use various chemical fibers as carriers to give full play to the excellent properties of various chemical fibers. Uses of flame-retardant fabrics: 1. Industrial flame-retardant protective workwear (used in petroleum, petrochemical, chemical and other industries); 2. Fire fighter combat uniforms and command uniforms; 3. Home and hotel decorative items, such as carpets, curtains, Bedding, etc.; 4. General clothing, especially children’s clothing, pajamas, etc.; 5. Arc protection clothing; 6. Space suits; 7. Racing suits. How to clean flame-retardant fabrics: 1. When washing, the water temperature should be below 30°C. Add 1 gram of neutral soap or enzyme-free detergent per kilogram of clothing. The liquor ratio should not be greater than 1:40. Use light washing methods to avoid excessive friction. And cause the anti-static performance to decrease. 2. After washing, it needs to be dried in the sun, or ironed at 150℃ for 2 minutes after natural drying. It can also be dried at 150℃ for more than 4 minutes before use. 3. Store in a dry and ventilated place to avoid mechanical or chemical damage. 4. Metal accessories are not allowed to be used when making work clothes. When they must be used (buttons, zippers), it should be ensured that the metal accessories are not directly exposed when wearing. 5. When wearing work clothes, it is prohibited to attach or wear any metal objects to the clothes, and it is prohibited to put them on or take off in flammable and explosive places.



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