Process for producing resin roll

Abstract

A resin roll ( 1 ) comprises a lower winding layer ( 3 ) comprising a fiber-reinforced resin formed on an outer periphery of a roll core ( 2 ), and an outer sleeve ( 5 ) comprising a synthetic resin formed on the outside through an adhesive layer ( 4 ). A non-woven fiber aggregate layer ( 8 ) which constitutes an outer periphery of the lower winding layer ( 3 ) is formed such that a tape-shaped non-woven fiber aggregate in which a fiber material mainly comprising inorganic fibers is coupled with a binder is sequentially transferred and the non-woven fiber aggregate is impregnated with a liquid thermosetting resin and wound around the outer periphery of the roll core ( 2 ).

1 - 13 . (canceled)  
   
   
       14 . A manufacturing method of a resin roll comprising: 
 a step of forming a lower winding layer comprising a fiber-reinforced resin on an outer periphery of a roll core;    a step of forming an outer sleeve comprising a synthetic resin on an outer periphery of said lower winding layer, wherein said step of forming the lower winding layer comprises a step of transferring a tape-shaped non-woven fiber aggregate in which a fiber material mainly comprising inorganic fibers is coupled with a binder in a predetermined direction so as to be wound around the outer periphery of said roll core, and a step of impregnating said non-woven fiber aggregate with a liquid thermosetting resin while said non-woven fiber aggregate is being transferred.    
   
   
       15 . The manufacturing method of the resin roll according to  claim 14 , wherein said lower winding layer has a laminated structure comprising an inner layer and an outer layer, wherein 
 said step of forming the lower winding layer comprises:    a step of forming said inner layer of the lower winding layer on the outer periphery of said roll core, and    a step of forming said outer layer on said inner layer on said roll core, and    said outer layer is said non-woven fiber aggregate impregnated with the thermosetting resin.    
   
   
       16 . The manufacturing method of the resin roll according to  claim 15 , wherein said inner layer comprises a layer in which a thread, a roving or a cloth tape comprising inorganic fibers or organic fibers is impregnated with a liquid thermosetting resin and wound around said roll core.  
   
   
       17 . The manufacturing method of the resin roll according to  claim 14 , wherein said step of forming the lower winding layer comprises a step of lowering viscosity of the thermosetting resin material after said non-woven fiber aggregate is impregnated with said liquid thermosetting resin.  
   
   
       18 . The manufacturing method of the resin roll according to  claim 17 , wherein the viscosity of said thermosetting resin is lowered while said non-woven fiber aggregate is being transferred.  
   
   
       19 . The manufacturing method of the resin roll according to  claim 17 , wherein the viscosity of said thermosetting resin is lowered while said non-woven fiber aggregate is being wound around said roll core.  
   
   
       20 . The manufacturing method of the resin roll according to  claim 14 , wherein said fiber material comprises glass fibers.  
   
   
       21 . The manufacturing method of the resin roll according to  claim 14 , wherein said non-woven fiber aggregate is a non-woven fabric or a paper formed of said fiber material.  
   
   
       22 . The manufacturing method of the resin roll according to  claim 14 , wherein said non-woven fiber aggregate has a length-direction tensile strength of 50N/15 mm or more.  
   
   
       23 . The manufacturing method of the resin roll according to  claim 14 , wherein said non-woven fiber aggregate has a basic weight of 30 g/m 2  to 100 g/m 2 .  
   
   
       24 . The manufacturing method of the resin roll according to  claim 14 , wherein an inorganic filler is mixed to said thermosetting resin.  
   
   
       25 . The manufacturing method of the resin roll according to  claim 14 , wherein said outer sleeve is formed on said lower winding layer through an adhesive layer.  
   
   
       26 . The manufacturing method of the resin roll according to  claim 14 , wherein said outer sleeve is formed directly on said lower winding layer without an adhesive layer.