In-Mold Label Container with Rib and Method of Manufacturing the Same

Abstract

An in-mold label container with ribs enabling an increase in heat insulation property against a temperature on the inside of the container and an increase in heat absorbing property against a temperature on the outside of the container and a method of manufacturing the container. In the in-mold label container ( 1 ) with the ribs, a resin container body ( 1 a ) having the plurality of ribs ( 5 ) on the side face ( 2 ) outer periphery thereof is formed integrally with a label ( 6 ) disposed on the side face ( 2 ) outer periphery of the container body ( 1 a ). The label ( 6 ) is holdingly installed between a resin portion on the container body ( 1 a ) side and a resin portion on the rib ( 5 ) side. Normally, the label ( 6 ) is formed of a material higher in heat insulation property or heat absorbing property than the resin of the container body ( 1 a ).

1 . A ribbed in-mold label container constructed and obtained by integrally molding a resinous container body having a plurality of projection-type ribs on an outer periphery of a lateral surface thereof and a label disposed on the outer periphery of the lateral surface of the container body, 
 wherein the label is sandwiched between a resin segment on a container body side and a resin segment on a ribs side.    
   
   
       2 . A ribbed in-mold label container according to  claim 1 , wherein the label is formed using a material exhibiting a higher heat insulating capacity or a higher heat absorbing capacity than a material of the resin.  
   
   
       3 . A ribbed in-mold label container according to  claim 1 , wherein the ribs are formed over an entirety of the outer periphery of the lateral surface in a direction perpendicular to a circumferential direction thereof.  
   
   
       4 . A method of manufacturing a ribbed in-mold label container, comprising: preparing an injection molding die for molding a container body having a plurality of projection-type ribs on an outer periphery of a lateral surface thereof; disposing a label at such a position within the injection molding die so that the label serves as the outer periphery of the lateral surface of the container body; and injecting a resin into the injection molding die to integrally mold the container body and the label, wherein: 
 by injecting the resin into the injection molding die, on which the label is disposed, the resin is caused to flow to both sides of the label and form the ribs and the container body on an outer peripheral side and an inner peripheral side of the label respectively; and    the label is sandwiched between a resin segment on the container body side and a resin segment on the ribs side to integrate the label with the container body.    
   
   
       5 . A method of manufacturing a ribbed in-mold label container according to  claim 4 , wherein the label is pressed toward an outer peripheral surface of a core of the injection molding die or an inner peripheral surface provided on a cavity side due to a shearing speed and/or a shearing pressure of the poured resin and then destroyed, whereby the resin is caused to flow to both the sides of the label.