Inspection device of winding appearance of tape and improvement processing method for the same

Abstract

To provide a winding appearance inspection device of a tape capable of gathering a line speed in an inspection process, as well as capable of inspecting a winding appearance of the tape wound on a roll body core, even in a reel having a flange formed in a roll body core (a roll body core). Winding appearance inspection device 10 serves as a device that evaluates the winding appearance of the tape such as film T or the like wound on roll body core H, comprising light projector 12 that irradiates a light along winding surface S of the tape such as film T or the like that at least partially passes near the roll body core H, and receiver 13 that receives the light.

1 - 4 . (canceled)  
     
     
         5 . A winding appearance improvement processing method in a winding appearance inspection device of a tape, wherein the tape is subjected to heat-treatment for a predetermined time at a temperature just below a glass transition temperature of a material used for a support base of the magnetic tape, so that a natural curl may be effectively formed.  
     
     
         6 . The winding appearance improvement processing method of the tape as described in  claim 5 , wherein the temperature just below a glass transition temperature is set to be lower than a glass transition temperature by 5 to 10 degrees C.  
     
     
         7 . The winding appearance improvement processing method as described in  claim 5 , wherein after taking up the tape on a reel for the tape, the winding appearance of the tape taken up on the reel for the tape is inspected, and when the inspection result is a failure, the tape for the tape is rewound on the reel for the tape, then the take-up posture of the tape for the tape is inspected again.  
     
     
         8 . The winding appearance improvement processing method of the tape as described in  claim 7 , wherein the winding appearance inspection device of the tape as described in claim  1  is used.  
     
     
         9 . The winding appearance improvement processing method as described in  claim 7 , wherein the magnetic tape is rewound at lower taking-up speed than the first taking-up speed.  
     
     
         10 . The winding appearance improvement processing method as described in  claim 8 , wherein the magnetic tape is rewound under decompressed state.  
     
     
         11 . The winding appearance improvement processing method as described in  claim 7 , wherein the magnetic tape is subjected to heat-treatment at a temperature just below a glass transition temperature of the material used for a support base of the magnetic tape, so that a natural curl may be effectively formed.  
     
     
         12 . The winding appearance improvement processing method as described in  claim 11 , wherein the temperature just below a glass transition temperature is set to be lower than a glass transition temperature by 5 to 10 degrees C.