Is nylon flame resistant?

02 Jul.,2024

 

Fire Flammable Fabrics - City of Phoenix

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All fabrics will burn,  but some are more combustible than others.  

Untreated natural fibers such as cotton, linen and silk burn more readily than wool, which is more difficult to ignite and burns with a low flame velocity.

The weight and weave of the fabric will affect how easily the material will ignite and burn. 

Fabrics with a tight weave - wool, modacrylic, 100 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. Full, long and loose garments tend to ignite easily and have a higher rate of burning since more material is exposed to the atmosphere than with close-fitting garments.

Flame-retardant materials used in garments require special laundering to maintain the flame-retardant effectiveness. Flame-retardant materials should be washed only with standard detergents. Clothing labels usually provide adequate information about the care of the garment.

Recommended clothing for minimum flammability would be sturdy jeans, tight-fitting jerseys, blouses without frills, jersey pajamas with no ruffled nightgowns, clothes with tight-fitting or short sleeves, clothes made from flame-retardant fabrics, sweaters, shirts and dresses that are not loose, flowing or too big. Clothing made from flame-retardant fabric is recommended especially for the elderly.

In terms of flammability, silk may be the worst with a high burning rate, which may be increased by the dyes and other additives to provide color.

  • Cotton and linen also have a high burning rate but this can be alleviated by the application of flame-retardant chemical additives.
  • Acetate and triacetate are as flammable or slightly less flammable than cotton. However, they can be made flame-retardant with chemical treatment.
  • Nylon, polyester and acrylic tend to be slow to ignite but once ignited, severe melting and dripping occurs.
  • Wool is comparatively flame-retardant. If ignited, it usually has a low burning rate and may self-extinguish.
  • Glass fibers and modacrylic are almost flame-resistant. These synthetic fibers are designed and manufactured to possess flame-retardant properties.

Fire Resistant Fabrics | Fire Retardant vs. Fire Resistant

Flame-resistant and fire-retardant fabrics are essential safety tools in a variety of industrial, commercial, and municipal applications. Technological improvements in these fabrics have facilitated the development flame barriers, coverings, numerous types of personal protective equipment, and more. This blog post will discuss the differences between flame-resistant and fire-retardant fabrics, common applications of these fabrics, and more.

Want more information on cloth fire & flame resistant & retardant? Feel free to contact us.

Flame-Resistant (FR) Fabrics

While there is significant overlap in fire-resistant and flame-retardant fabric&#;both in terminology and physical usage&#;the two fabric types have distinct differences.

Fire-Retardant Fabric vs. Fire-Resistant Fabric

Fire-retardant fabrics and fire-resistant fabrics are two different classes of material. Each class has unique attributes that make them advantageous for intense heat or open flame applications, but they use different mechanisms to do so.

  • Fire-retardant fabrics, also known as chemically flame retardant fabrics, are standard fabrics that have been treated with a special flame-retardant coating. They will burn, but at a much slower rate than untreated standard fabrics. Flame retardancy is classified into three groups: flame retardant (FR), inherently flame retardant (IFR), and durably flame retardant (DFR).
  • Flame-resistant fabrics are made up of typically synthetic fibers that resist ignition under prolonged exposure to flame or heat. Because of this construction, they are also sometimes referred to as inherently flame-retardant fabrics. Instead of burning, these fabrics will eventually begin to melt. The degree of inherently flame-resistant fibers within a flame-resistant fabric can vary widely from a few percent of the fibers to a full construction, depending on the manufacturer.

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Nylon and Polyester Fabric Fire Resistance

Synthetic fibers comprise most of the top choices for fire-resistant fabrics. While most natural fibers are flammable, plastic-based fibers will often melt due to the heat instead of igniting. Nylon and polyester fabrics have become especially popular due to their high melting points and low thermal conductivity. For additional protection, manufacturers can treat the fibers with a solution of fire-resistant chemicals.

Adding a Fire-Resistant Fabric Finish

Certain chemicals can treat natural and synthetic fibers to increase their fire resistance. These chemicals are classified into four different groups based on their effects:

  • Soft Fire Resistant (FR)
  • Medium Crisp Fire Resistant (FR)
  • Medium Soft Fire Resistant (MSFR)
  • Heat Set Fire Resistant (HSFR)

Common Applications

Fire-resistant and fire-retardant fabrics are necessary in a wide variety of applications. Many industries regulate the types of fabrics allowed in various settings to ensure that facilities meet minimum application safety standards. Some of the most popular applications for these fabrics include the following:

  • Aeronautical, automotive, and marine applications, which require fire-retardant or fire-resistant fabrics for seating, cargo nets, and interior finishes
  • Hospital uses, such as material for drapes, sheets, and mattress covers
  • Military applications, such as protective military clothing
  • Occupational safety, with applications primarily focused on worker safety and PPE in industrial and outdoor settings
  • Recreation, especially in camping, fishing, golfing, hiking, hunting, and shooting

More Information on Fire Resistant/Retardant Fabrics

At Jason Mills, we manufacture a wide variety of knit textiles, including flame-retardant and fire-resistant fabrics. Our materials meet strict industrial and safety standards to ensure every protective fabric is as safe as possible. Our team can research and develop custom fibers to create knit fabrics that target specific operational challenges. Contact us today or request a quote to see how our capabilities can serve your operation.

 

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