Fabric, and cable cover for robot arm

Abstract

For providing a fabric that has a low frictional property and can exhibit long-term tribological properties even when the fabric is subjected to a high-speed frictional force under a high load, there is provided a fabric according to the present invention is a fabric in which a composite yarn of fluororesin fibers A and fibers B other than fluororesin fibers is used for at least one of a warp yarn and a weft yarn, and the fabric is characterized in that a mass ratio α of the fluororesin fibers A in the composite yarn is 5 to 70%, and a ratio of the area ratio X of the fluororesin fibers in a fabric surface to a mass ratio Y of the fluororesin fibers in the fabric is 1 or more and 5 or less. This fabric can be usefully used for a cable cover for a robot arm.

1 . A fabric wherein a composite yarn of fluororesin fibers A and fibers B other than fluororesin fibers is used for at least one of a warp yarn and a weft yarn, a mass ratio α of the fluororesin fibers A in the composite yarn is 5 to 70%, and a ratio X/Y of an area ratio X of the fluororesin fibers A in a fabric surface to a mass ratio Y of the fluororesin fibers A in the fabric is 1 or more and 5 or less. 
     
     
         2 . The fabric according to  claim 1 , wherein the composite yarn is used for either the warp yarn or the weft yarn, and the fibers B are used as either the weft yarn or the warp yarn orthogonal to the composite yarn. 
     
     
         3 . The fabric according to  claim 1 , wherein the area ratio X is 10% or more and 60% or less. 
     
     
         4 . The fabric according to  claim 1 , wherein the composite yarn is a doubled and twisted yarn obtained by doubling and twisting the fluororesin fibers A and the fibers B other than fluororesin fiber. 
     
     
         5 . The fabric according to  claim 4 , wherein the fibers B constituting the doubled and twisted yarn is a twisted yarn. 
     
     
         6 . The fabric according to  claim 1 , wherein the fluororesin fibers A are made from a polytetrafluoroethylene resin. 
     
     
         7 . The fabric according to  claim 1 , wherein the fibers B are fibers that are 7 cN/dtex or more in tensile strength. 
     
     
         8 . The fabric according to  claim 7 , wherein the fibers B are fibers that are 15 to 50 cN/dtex in tensile strength. 
     
     
         9 . The fabric according to  claim 1 , wherein the fibers B are fibers that have a heat resistance temperature of 280° C. or higher. 
     
     
         10 . The fabric according to  claim 1 , wherein the fibers B are fibers that are 450 to 800 cN/dtex in tensile modulus of elasticity. 
     
     
         11 . The fabric according to  claim 1 , wherein the fibers B are organic fibers. 
     
     
         12 . The fabric according to  claim 1 , wherein the fibers B are fibers selected from liquid crystal polyester fibers, para-aramid fibers, and polyparaphenylene benzobisoxazole fibers. 
     
     
         13 . A robot arm cable cover comprising, in at least a part thereof, the fabric according to  claim 1 .