Xinxiang Yulong Textile Co., Ltd., as a manufacturer of […]
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Determining the flame retardant properties of flame ret […]
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Three methods of FR finishing about the fr fabric:
1) exhaust combustion method: fire retardant and cellulosic fibers integrated with ionic bond or covalently bond, which makes it not dissolved in the durability to get the durable flame retardant function.
Fire retardant fabric can be divided into three categories according to the fire retardant effect: disposable fire retardant fabric/durable fire retardant fabric/raw material type fire retardant fabric.
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The inquiry about finished flame retardant fabric is more complex than greige inquiry. Flame retardant fabric specification is not enough to get accurate and effective price, because it refers to the dyeing and the after treatment. As for the same one fire retardant fabric, same color and same dyeing factory, but the cost different, why?
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It is an extremely complex process to test the fire retardant fabric’s FR property, because there are too many burning factors affect the fire retardant fabric, and these factors are related. The FR property will be different even the same fire retardant fabric has different behaviors in the fire.
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What are the best fire retardant fabric varieties? Fire retardant fabric is generally divided into two kinds, one is post-processing processed fire retardant fabric, one is a natural flame-retardant fiber fabric. If it is concerned about the effect of flame retardant, of course, the best is aramid fire retardant fabric, it has a permanent flame retardant property.
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Generally speaking, fire proof fabric is fire retardant fabric, but only the higher grade fire retardant fabric can be called fire proof fabric, like asbestos fabric, glass fabric etc.
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1, Good fireproof workwear has durability or permanent heat resistance, flame retardant, non-combustion, not because of washing, the use of the number of times to reduce the flame retardant properties.
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Fire proof property:
When buying fire proof workwear, first check the fire retardant fabric material, fibre composition etc, also can remove one or two yarns at the seams, with a lighter to see the fire proof property and shrinkage of yarn.
There is two evaluation of fire retardant fabric:
1,Oxygen index.
Fabric combustion requires oxygen, oxygen index is the flame retardant fabric required for the expression of oxygen
The char length of fire retardant fabric refers to the carbonization length of fabric after the burned fabric completely extinguished. Char length test is divided into sampling, burning, tearing, measuring several steps.
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