Process for Production of Glass Fiber Fabric Having Silica Microparticles Adhered Thereon, Glass Fiber Fabric Having Silica Microparticles Adhered Thereon, and Fiber-Reinforced Molded Resin Article

Abstract

A production process for producing a glass fiber fabric that has good smoothness and is excellent in resin impregnation property is provided wherein glass fiber yarns are woven to obtain a glass fiber fabric.

1 . A process for production of a glass fiber fabric having silica microparticles adhered thereon in which silica microparticles are attached or fused on glass filament surfaces of a glass fiber fabric to adhere the silica microparticles, comprising:
 an attachment step of immersing the glass fiber fabric in which a sizing agent is attached on the glass filaments, in an aqueous dispersion of silica microparticles to attach the silica microparticles on the glass filament surfaces of the glass fiber fabric;   a fiber-opening step of providing a fiber-opening treatment to the glass fiber fabric on which the silica microparticles are attached by the attachment step; and   a heating step of heat-treating the glass fiber fabric to which the fiber-opening treatment is provided by the fiber-opening step, to fuse some or all of the silica microparticles attached by the attachment step, on the glass filament surfaces of the glass fiber fabric.   
     
     
         2 . The process for production of a glass fiber fabric having silica microparticles adhered thereon according to  claim 1 , wherein a fusion rate of the silica microparticles in the glass fiber fabric having silica microparticles adhered thereon is 60% or more. 
     
     
         3 . The process for production of a glass fiber fabric having silica microparticles adhered thereon according to  claim 1 , wherein the fiber-opening treatment
 provides at least one of a fiber-opening treatment with a water jet, a fiber-opening treatment with a vibrowasher, and a fiber-opening treatment with an ultrasonic wave.   
     
     
         4 . The process for production of a glass fiber fabric having silica microparticles adhered thereon according to  claim 1 , wherein a mass per unit area of the glass fiber fabric having silica microparticles adhered thereon is 110 g/m 2  or less. 
     
     
         5 - 8 . (canceled)