Manufacturing method of tape-form recording medium

Abstract

A manufacturing method of a tape-form recoding medium in the present invention includes a raw web manufacturing process of forming a data recoding layer on one side of a substrate and a back coat layer having a minute convexity on the other side thereof, and thus manufacturing raw web of the tape-form recoding medium; a raw web winding process of winding the raw web with a predetermined tension; a raw web rewinding process of rewinding the raw web; and a raw web heating process of heating the rewound raw web.

1 . A manufacturing method of a tape-form recoding medium comprising: 
 a raw web manufacturing process of forming a data recoding layer on one side of a substrate and a back coat layer having a minute convexity on the other side thereof, and manufacturing raw web of the tape-form recoding medium;    a raw web winding process of winding the raw web with a predetermined tension;    a raw web rewinding process of rewinding the raw web; and    a raw web heating process of heating the raw web rewound.    
     
     
         2 . The manufacturing method of the tape-form recoding medium according to  claim 1  further comprising a strain relief process of heating the raw web wound and relieving a strain of the raw web after the raw web winding process and before the raw web rewinding process.  
     
     
         3 . The manufacturing method of the tape-form recoding medium according to  claim 1  further comprising a raw web slitting process of slitting the raw web after the raw web winding process and before the raw web rewinding process, wherein the raw web rewinding process winds the slit raw web.  
     
     
         4 . The manufacturing method of the tape-form recoding medium according to  claim 2  further comprising a raw web slitting process of slitting the raw web after the strain relief process and before the raw web rewinding process, wherein the raw web rewinding process winds the slit raw web.  
     
     
         5 . The manufacturing method of the tape-form recoding medium according to  claim 1 , wherein the raw web is rewound on a hub having a taper on a tape winding face in the raw web rewinding process.  
     
     
         6 . The manufacturing method of the tape-form recoding medium according to  claim 2 , wherein the raw web is rewound on a hub having a taper on a tape winding face in the raw web rewinding process.  
     
     
         7 . The manufacturing method of the tape-form recoding medium according to  claim 3 , wherein the raw web is rewound on a hub having a taper on a tape winding face in the raw web rewinding process.  
     
     
         8 . The manufacturing method of the tape-form recoding medium according to  claim 4 , wherein the raw web is rewound on a hub having a taper on a tape winding face in the raw web rewinding process.  
     
     
         9 . The manufacturing method of the tape-form recoding medium according to  claim 1 , wherein the data recording layer is a magnetic layer and 1 to 150 nm in thickness.  
     
     
         10 . The manufacturing method of the tape-form recoding medium according to  claim 2 , wherein the data recording layer is a magnetic layer and 1 to 150 nm in thickness.  
     
     
         11 . The manufacturing method of the tape-form recoding medium according to  claim 3 , wherein the data recording layer is a magnetic layer and 1 to 150 nm in thickness.  
     
     
         12 . The manufacturing method of the tape-form recoding medium according to  claim 4 , wherein the data recording layer is a magnetic layer and 1 to 150 nm in thickness.  
     
     
         13 . The manufacturing method of the tape-form recoding medium according to  claim 5 , wherein the data recording layer is a magnetic layer and 1 to 150 nm in thickness.  
     
     
         14 . The manufacturing method of the tape-form recoding medium according to  claim 6 , wherein the data recording layer is a magnetic layer and 1 to 150 nm in thickness.  
     
     
         15 . The manufacturing method of the tape-form recoding medium according to  claim 7 , wherein the data recording layer is a magnetic layer and 1 to 150 nm in thickness.  
     
     
         16 . The manufacturing method of the tape-form recoding medium according to  claim 8 , wherein the data recording layer is a magnetic layer and 1 to 150 nm in thickness.  
     
     
         17 . The manufacturing method of the tape-form recoding medium according to  claim 5 , wherein one side length of the raw web out of both sides in width directions thereof is formed longer than the other side length.  
     
     
         18 . The manufacturing method of the tape-form recoding medium according to  claim 6 , wherein one side length of the raw web out of both sides in width directions thereof is formed longer than the other side length.  
     
     
         19 . The manufacturing method of the tape-form recoding medium according to  claim 7 , wherein one side length of the tape-form recoding medium obtained in the raw web heating process is formed longer than the other side length out of both sides in width directions of the medium.  
     
     
         20 . The manufacturing method of the tape-form recoding medium according to  claim 8 , wherein one side length of the tape-form recoding medium obtained in the raw web heating process is formed longer than the other side length out of both sides in width directions of the medium.