What makes fabrics fire resistant

Inherent fabrics and fibers do not need to be chemically treated. The FR properties are an essential characteristic of the fiber chemistry. Once again these fibers are FR fibers, but from creation of the fibers. Both inherent fabrics and fibers cannot lose their flame resistant properties from normal wear or laundering. The garment will keep its flame resistant characteristics throughout its life.

Modacrylic fibers are the most popular inherent fibers. They are primarily used in blends with other inherent flame resistant fibers. The modacrylic fibers are often combined with various percentages of lyocell, para-aramid or polyamide imide fibers. Inherent fabrics and fibers are found in petrochemical, electrical and utility industries.

Another popular application is firefighter station wear and turn out gear. Most inherent fabrics and fibers are not recommended for use in welding operations or around molten substances. Caring for inherent fabrics and fibers is the same as the treated types.

Soft water is recommended as hard water contains mineral salts that can leave insoluble deposits on the fabric. Chlorine bleach is also not recommended as it will weaken the fabric. This information is provided by Bulwark, a leader in the flame resistant garment industry. This is also not necessarily an endorsement of Bulwark. There are other brands that manufacture high-quality flame resistant garments as well. Fabrics with a tight weave - wool, modacrylic, percent polyester and those that are flame-retardant treated are good choices.

Heavy, tight weave fabrics will burn more slowly than loose weave, light fabrics of the same material. The surface texture of the fabric also affects flammability.

Fabrics with long, loose, fluffy pile or "brushed" nap will ignite more readily than fabrics with a hard, tight surface, and in some cases will result in flames flashing across the fabric surface. Most synthetic fabrics, such as nylon, acrylic or polyester resist ignition. However, once ignited, the fabrics melt. This hot, sticky, melted substance causes localized and extremely severe burns.

When natural and synthetic fibers are blended, the hazard may increase because the combination of high rate of burning and fabric melting usually will result in serious burns. In some cases, the hazard may be greater than that of either fabric individually. Curtains, draperies and other articles in the home can have their burning rates reduced with flame retardants applied through chemical treatment.

Such flame-retardant treatment after manufacturing is not recommended for clothing. The design of clothing also may influence the flammability of the garment. These products are affordable and fairly effective at providing a somewhat lower degree of flame resistance than some of the other fabrics, but will provide ample protection for certain professionals. This means these fabrics will remain flame resistant for a lifetime without any additional treatment necessary.

Treated flame resistant fabrics, however, are fabrics that are sprayed or dipped into a flame resistant chemical. This treatment renders the fabrics flame resistant, but the flame resistance may not be permanent. These types of fabrics may lose some degree of their flame resistance through washing, regular use, and exposure to certain elements. For professionals who require any degree of heat and flame resistance as a part of their work, there are a variety of fabrics available to choose from.

From fabrics which are made of flame resistant fibers to fabrics which are treated with a flame resistant chemical, there is a style, weight, and brand to suit your needs and your budget.

Blog - Latest News. Nomex This line of fire resistant fabrics has been in use since the s. Kevlar Among some of the more common types of fire resistant fabrics is Kevlar. Indura Indura cotton is among one of the best selling brands of flame resistant clothing. Proban Proban is a bit different than the other fire resistant and fire retardant clothing.

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