Manufacturing method of a tray container, and the tray container itself

Abstract

A manufacturing method of a tray container for housing a plurality of photothermographic material sheets, comprising a step of: pressing and heating a paperboard, using dies to produce the tray container, wherein temperature of the dies is greater than 180° C., and pressing force is 180-230 kgf/cm 2 (18-23 Mpa).

1 . A manufacturing method of a tray container for housing a plurality of photothermographic material sheets, comprising a step of: 
 pressing and heating a paperboard, with dies to produce the tray container,    wherein temperature of the dies is greater than 180° C., and pressing force is 180-230 kgf/cm 2  (18-23 Mpa).    
   
   
       2 . The manufacturing method of the tray container in  claim 1 , wherein moisture content of the tray container after pressing is less than 3.0 wt %.  
   
   
       3 . The manufacturing method of the tray container in  claim 1 , wherein a material for the tray container is selected from among coated cardboard, corrugated fiberboard and synthetic paper.  
   
   
       4 . A tray container for housing a plurality of photothermographic material sheets, wherein the tray container is manufactured of paperboard with the dies by pressing and heating, and wherein temperature of the dies is greater than 180° C., and pressing force is 180-230 kgf/cm 2  (18-23 Mpa).  
   
   
       5 . The tray container for housing a plurality of photothermographic material sheets in  claim 4 , wherein moisture content of the tray container after pressing is less than 3.0 wt %.  
   
   
       6 . The tray container for housing a plurality of photothermographic material sheets in  claim 4 , wherein a material of the tray container is selected from among coated cardboard, corrugated fiberboard and synthetic paper.  
   
   
       7 . The tray container for housing a plurality of photothermographic material sheets in  claim 4 , comprising: 
 a base on which the photothermographic material sheets are stacked; and    a short wall centered on each of the four sides of the base, integral and perpendicular to the base.