EXPOfabric® - Your Preferred Fabric Partner
Terminology Commonly Used for FR Fabrics
Fabric has been treated with a Flame Retardant chemical at the Mill or Flameproofer. This is a topical treatment, usually water-soluble and has limited service life. It cannot stand up to high humidity or washing. The fabric must be retested each year and re-flame proofed as necessary to maintain its certification. This is the most common type of finish on 100% Cotton FR fabrics and Polyester or Nylon fabrics treated by a flameproofer.
A Flame Retardant additive is added to the fiber to give the fabric Permanent Flame Resistance. A topical finish is often added in fabric dyeing and finishing insuring in fabric formation and the FR properties are maintained. Although there will be no degradation from washing or dry cleaning, the same factors of environment, use of added components and further processing may compromise its flame resistance. Retesting every few years and re-flame proofing may still be required.
Fabric cannot be Flame proofed by any method without compromising the structural integrity of the fabric.
Fabric is treated with Flame Retardant chemicals in the dyeing and finishing process at the mill. These chemicals are not water-soluble and are permanently bonded to the fabric. This process is commonly used on 100% Polyester fabrics. All of Expofabric 100% Polyester fabrics that are denoted as PFR in the catalogue are Permanently Flame Resistant. Nevertheless, retesting and re-flame proofing may still be required.