Patent ID: 11873179
Assignee: NITTO DENKO CORPORATION
Field: Surface technology, coating (Chemistry)
Classification: CPC B | IPC B

Claim 4:
5. A method of conveying a glass film composite using a roll-to-roll process for winding a glass film composite wound on a feed roller by a winding roller through a plurality of conveyance rollers, wherein
the glass film composite includes an elongated glass film, and linear resin tapes disposed on one side of the glass film along a longitudinal direction of the glass film at both ends in a width direction of the glass film,
the conveyance rollers include a first conveyance roller that conveys the glass film composite, a concave surface of the glass film composite which is not covered by the resin tapes being faced to the first conveyance roller, and a second conveyance roller that conveys the glass film composite, a concave surface of the glass film composite which is covered by the resin tapes being faced to the second conveyance roller, and
a diameter of the second conveyance roller ρ (mm), the predetermined holding angle θ (degrees), and a thickness of the glass film t (μm) satisfy a relation, ρ
  ≥
  
   
    7
    
     3
     ⁢
     0
    
   
   ⁢
   
    (
    
     2
     ⁢
        
     
      tan
      ⁡
      (
      
       
        θ
        
         1
         ⁢
         8
         ⁢
         0
        
       
       -
       
        1
        2
       
      
      )
     
     ⁢
     π
    
    )
   
   ⁢
   
    t
    .