The invention relates to the use of a
flame resistant (FR) three-layer double-knit fabric, also know as a matelasse fabric. The top layer is of standard non-FR face
yarn, the middle layer is of a FR filler spun
yarn and the bottom layer is of a FR spun
yarn or FR
filament yarn. This FR matelasse fabric can be used to protect a mattress, foundation, upholstery
cushion, pillow, office panel, transportation seat or any other article requiring FR protection. In this invention, a matelasse fabric is formed by circular double knitting a FR spun or FR
filament yarn into the bottom portion of the fabric, utilizing a heavy cotton count FR filler spun yarn for the middle layer and using conventional non-FR yarns for the top layer. The invention has particular applicability in the formation of FR mattresses and foundations that require passage of large open
flame tests such as CPSC's 16 CFR Part 1633, California's Test Bulletin 603 and Test Bulletin 129 and in the formation of FR
upholstered furniture that requires passage of California's Test Bulletin 133 or British Standard 5852 using the crib 5 ignition source or higher.