Method for making a customised crown cap, capsule and cap thus obtained

Abstract

A method for making a customised crown cap, including the following steps: making a shell defining the body of the crown cap, having the circular upper face configured with a recessed portion positioned and included inside the perimeter of the upper face; making a personalising element having dimensions corresponding to the recessed portion and having, at its upper surface, identification means; inserting the personalising element inside the recessed portion and relative stable association.

1 . A method for making a customised crown cap, wherein it comprises the following steps:
 making a shell defining the body of the crown cap, having the circular upper face configured with a recessed portion positioned and included inside the perimeter of the upper face;   making a personalising element having dimensions corresponding to the recessed portion and having, at its upper surface, identification means;   inserting the personalising element inside the recessed portion and relative stable association.   
     
     
         2 . The method according to  claim 1 , wherein the personalising element has a circular shape. 
     
     
         3 . The method according to  claim 1 , wherein the step of making a personalising element comprises the steps of:
 preparing a sheet of plastic material having a mainly planar extension;   printing a plurality of identification elements and/or decorations on the sheet;   cutting the sheet into a plurality of portions, at least at a part of the identification elements and/or decorations, to make a corresponding plurality of personalising elements.   
     
     
         4 . The method according to  claim 1 , wherein the sheet of plastic material is a sheet of thermoplastic material. 
     
     
         5 . The method according to  claim 1 , wherein the step of inserting the personalising element inside the recessed portion comprises a step of gluing the personalising element inside the recessed portion. 
     
     
         6 . The method according to  claim 1 , wherein the step of making a shell comprises the following steps:
 a) making a capsule equipped with a plurality of corrugations defining teeth of the crown cap;   b) making a recessed portion on the circular upper face of the capsule.   
     
     
         7 . The method according to  claim 6 , wherein the step of making a capsule equipped with a plurality of corrugations defining teeth of the crown cap is made, in terms of time, before the step of making a recessed portion on the circular upper face of the capsule. 
     
     
         8 . The method according to  claim 6 , wherein the making of a recessed portion on the circular upper face of the capsule comprises a step of placing the capsule in contact with a die, and subjecting it to the pressing action of a punch. 
     
     
         9 . The method according to  claim 8 , wherein the punch has an axially-symmetrical shape and has on a radially outer portion a prominent edge. 
     
     
         10 . The method according to  claim 9 , wherein the prominent edge of the punch is connected to a central face by an inclined surface, the inclined surface being inclined relative to a surface of the central face at an angle of between 15° and 50°. 
     
     
         11 . The method according to  claim 10 , wherein the prominent edge of the punch is connected to a central face by an inclined surface, the inclined surface being inclined relative to a surface of the central face at an angle of between 20° and 40°. 
     
     
         12 . The method according to  claim 1 , wherein the die has on a radially outer portion a perimeter recess. 
     
     
         13 . A closing capsule, comprising a shelldefining the body of the crown cap, equipped with a plurality of corrugations defining the teeth of the crown cap wherein it has a circular upper face configured with a recessed portion positioned and included inside the perimeter of the upper face, the recessed portion being a continuous portion radially inside an axis of symmetry of the shell. 
     
     
         14 . The capsule according to  claim 13 , wherein the recessed portion comprises a first central surface which terminates, at a radially outer edge, with a surface inclined relative to the first central surface. 
     
     
         15 . The capsule according to  claim 14 , wherein the inclined surface is inclined relative to the first central surface at an angle of between 15° and 50°. 
     
     
         16 . A closing cap, comprising a closing capsule according to  claim 13  and a personalising element coupled to the shell and positioned inside the recessed portion.