Patent ID: 7883748
Filing Date: 2011-02-08
Classification: B29C,B29L,B32B,Y10T

Abstract:
1. A method of manufacturing a reinforcing fiber sheet having a cloth core comprising: (a) setting a screen on top of a cloth layer of an assemblage of reinforcing fibers constructed of vertically and horizontally woven vertical strips and horizontal strips; (b) supplying onto the screen an ink that exhibits flexibility after drying and screen printing to impregnate the cloth layer with the ink; and (c) drying the cloth layer impregnated with the ink such that the dried ink forms an adhesive medium that bonds together and reinforces the vertical strips and the horizontal strips into a cloth core, wherein said screen has a mesh size having a mesh number corresponding to ¼ to ⅓ of the mesh number specified for ordinary screen printing of the ink, wherein, when the cloth core is pulled in a diagonal direction, the vertical and horizontal strips become inclined to each other forming a rhombic shape that reduces the tendency of the cloth layer from coming undone, and whereas the cloth layer in step (a) comes undone when pulled diagonally.