Material for flame-retardant sheet

Abstract

The flame retardant sheet material of the present invention simultaneously affords good flame retardancy and melting resistance in a sheet material in which a nonwoven is used, and also simultaneously provides good abrasion resistance and an excellent design, making it suitable for use in automotive trim surface materials. A flame retardant sheet material is obtained by first needle-punching and then stitch-bonding a web containing 70 to 95 wt % base fiber and 5 to 30 wt % flame retardant fiber selected from among flame retardant rayon fiber and modacrylic fiber. It is preferable for propoxyphosphazene or another such phosphoric ester-based flame retardant to be kneaded into the flame retardant fiber. It is also preferable to add a binder fiber to the web in order to improve abrasion resistance.

1 . A flame retardant sheet material, comprising a web containing 70 to 95 wt % base fiber and 5 to 30 wt % flame retardant fiber selected from among flame retardant rayon fiber and modacrylic fiber, the web being subjected to needle-punching and then stitch-bonding.  
     
     
         2 . The flame retardant sheet material according to  claim 1 , wherein the flame retardant fiber contains a phosphoric acid-based flame retardant or a halogen-based flame retardant.  
     
     
         3 . The flame retardant sheet material according to  claim 1  or  2 , wherein the yarn used in the stitch-bonding is Spandex yarn or a twisted and crimped yarn.  
     
     
         4 . The flame retardant sheet material according to  claim 1  or  2 , wherein the yarn used in the stitch-bonding is a low melting point yarn.  
     
     
         5 . The flame retardant sheet material according to any of  claims 1  to  4 , wherein the base fiber is polyester.  
     
     
         6 . The flame retardant sheet material according to of  claims 1  to  5 , wherein the web further contains 3 to wt % binder fiber.