All natural cellulose or regenerated cellulose, fiber fabrics, and other natural or synthetic fiber fabrics that are partially treated or untreated are flammable, and these fabrics are prone to combustion when in contact with an open flame source. Due to factors such as flammability and flame spread, some combustible fabrics can pose a threat to consumer safety when made into clothing for use&Nbsp

In view of the above reasons, various countries have formulated a series of regulations and related testing methods for the flammability of fabrics and their products. Countries such as Europe, America, and Japan have long legislated on the combustion performance of a series of textile products, including clothing fabrics, pajamas, children's pajamas, carpets, mattresses, curtains, etc., which require passing combustion tests before production and use; The Consumer Product Safety Commission (CPSC) of the United States also legislates that textiles used in high-rise buildings, aviation, maritime transportation, hospital sanatoriums, public gathering places, and flammable work areas must pass flame resistance tests; Our country's national standards GB/T5455 and GB 5456 also have technical requirements for the combustion performance of clothing, fabrics, home furnishings, etc.

Experimental purposes and requirements

According to the experimental methods specified in the national standard GB5455-85, the tendency to prevent combustion, smoldering, and carbonization of textiles after various flame retardant treatments is measured, that is, the damage length, sustained combustion time, and flame retardant time of flame retardant fabrics are measured. Through experiments, master the structure and experimental methods of a vertical combustion tester, and understand the factors that affect the combustion performance of textiles

For textiles, combustion performance is a very important quality indicator. It is reported that the combustion performance of textiles can generally be characterized by indicators such as flame spread rate, sustained combustion time, flame retardant time, and damage length. Generally speaking, the lower the flame spread rate of fabrics, the shorter the duration of ignition. When in contact with a fire source, the ignition time is relatively slow, which can give people reaction time to get rid of the burn caused by the fire source on the body or avoid the occurrence of a fire. Therefore, the combustion performance of textiles is an important indicator that affects human safety. Flame retardancy refers to the properties of a substance or material that significantly delay flame spread after treatment

Testing standards and scope

Country

Standard

Standard name

Applicable scope

China

FZ/T  01028

Measurement of combustion performance of textile fabrics:; Horizontal method Suitable for various textile fabrics GB/T; 14644

Textile combustion performance Determination of combustion rate in the 45 ° direction Suitable for clothing textiles GB/T; 14645

Determination of the burning performance of textiles in the 45 ° direction, damage area, and flame exposure frequency Method A:; Various textile fabrics

Method B:; Fabrics suitable for melting combustion

GB/T; 5455

Textile combustion performance test:; Vertical method Suitable for flame-retardant woven fabrics, knitted fabrics, coated products, laminated products, etc GB/T; 5456

Vertical direction of textile combustion performance - Determination of flame propagation performance of samples Suitable for single or multi-component clothing, curtains, curtains, and large tents, including awnings and door covers (coated, quilted, multi-layer, sandwich products, and similar combinations)

United States

16  CRF; Part  1610

Flammability test method for clothing fabrics Suitable for clothing products

16  CRF; Part  1615

Flammability test method for children's pajamas Suitable for children's pajamas and accessories of different sizes

16  CRF; Part  1616

Europe

BS  EN  ISO; 6940

Burning performance of textile fabrics: determination of flammability of vertical specimens Suitable for fabrics such as clothing, curtains, and curtains, including single or multi-layer fabric components BS  EN  ISO; 6941

Burning performance of textile fabrics: determination of flame spread of vertical specimens

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