Flame retardant and fabric flammability of flame retardant fabrics
2019-01-16 09:29 | writer: admin
Fabric flammability considerations
Fabric flammability is an important issue to consider, especially for fabrics that will be used in public places (such as schools, theaters, or special events) because federal fabrics require fabric fabrics used in these locations to be certified as flame retardants. .
Although all fabrics burn, some fabrics are naturally more fire resistant than others. Those more flammable products can greatly improve their fire resistance through the treatment of flame retardant chemicals.
Some synthetic fibers are extremely flame retardant, including glass fibers and modified polyacrylonitrile. Other compositions, including certain polyesters, are slow to ignite and may even extinguish themselves. However, once the synthetic fabric is ignited, they will melt rather than flame. If in contact with the skin, the resulting material can cause severe burns.
Natural fibers usually do not melt. Wool and silk burn slowly, are difficult to ignite, and may extinguish themselves. Using other untreated natural fabrics, such as cotton and linen, the fabric can ignite quickly, resulting in a fast moving flame spread. Fabrics comprising a combination of natural fibers and synthetic fibers, such as polyester-cotton blend fabrics, can be particularly troublesome because they combine the fast ignition and flame spread of natural fibers with the melting of synthetic fibers.
The ignition and combustion factors of the fabric are also affected by the weight of the fabric and the fabric. Lightweight, loose woven fabrics burn faster than heavier fabrics that are tightly woven. In addition, the flammability of the fabric is also affected by the texture of the fabric surface, and the fleece fabrics (such as velvet and velvet) are easier to ignite than fabrics with a smooth surface.
Fabric flame retardancy
Permanent flame retardant fabric with treated flame retardant fabric
The good news is that the flammability of fabrics can be greatly reduced by the use of flame retardants. Many natural fibers, including cotton, can be partially treated with a chemical that reduces the flammability of the fabric to an almost non-combustible level. During a fire, chemicals react with the naturally occurring gases and tars of the fabric, converting the gas and tar into carbon char, which greatly slows the burning rate of the fabric.
Some polyester fabrics are considered to be permanently flame retardant. This is because the fabric is made of fiber and its flame retardant properties are directly established in the molecular structure of the fiber. Fabrics made with TreviraTM and AvoraTM polyester fibers are considered to be inherent or permanent flame retardants.
Other synthetic fabrics can be considered as durable flame retardants, flame retardants or non-flame retardants. "Durable flame retardant" refers to a method of chemically treating a polyester with a water-insoluble chemical during the manufacturing process. In other cases, the synthetic fabric may be treated locally with chemicals after the manufacturing process (in the same manner as natural fibers such as cotton), or may be untreated (or untreated) and thus considered to be non-flame retardant. .
When the fabric is designated as "inherently flame retardant", "permanently flame retardant" or "permanently flame retardant", the flame retardancy will continue the life of the fabric. Fabrics can be cleaned or dry cleaned as recommended by the curtain manufacturer.
In the case of fabrics known as "flame retardants" which have been partially treated with chemicals, the flame retardancy of the fabric will dissipate over time, especially during repeated cleaning. These fabrics must be dry cleaned with a non-liquid detergent.
One of the five common misconceptions about flame retardancy is that it is always good. Typically, the flame retardancy of a partially treated fabric is certified for one year, but the actual length of time that the treatment remains effective will vary depending on the number of fabrics dried and the environmental conditions therein. Use fabric. It is recommended that the partially treated fabric be retested annually to ensure flame retardancy and re-processed by qualified personnel as needed.
More information about flame retardant
We provide information on some aspects of flame retardancy and fabric flammability issues on our website. For more information, please feel free to browse other articles in the "Flame-retardant" section of our website.
We are also happy to use the expertise of flame retardant fabrics as part of your purchase of flame retardant fabrics or offer quotes. For assistance, please call 0373-3037877 or contact us for a free quote.