Process for realising box-shaped packagings with thermoplastic film sheets and product obtained therefrom

Abstract

A process for the realization of box-shaped packagings with thermoplastic film sheets foresees the use of at least one film sheet of thermoplastic material ( 12, 13 ), bound to a flap ( 14, 15 ) of a box ( 11 ), when the same is placed in a laid down configuration, and comprises the following steps; placing the box ( 11 ) in such a way as to be able to take said film sheets ( 12, 13 ) away, leaving the bottom of the box ( 11 ) accessible; inserting the products ( 21 ) in the box ( 11 ); wrapping the products ( 21 ) into said film sheets ( 12, 13 ); heating the content of the box ( 11 ) with means for providing a concentrated ventilation from the top; and, once the shrinking of the thermoplastic material has occurred, closing the box ( 11 ) at the open side.

1 . Process for the realisation of box-shaped packagings with thermoplastic film sheets characterised in that it provides for the use of at least one film sheet of thermoplastic material ( 12 ,  13 ), bound to a flap of a box ( 11 ), when this is arranged in a laid down configuration, comprising the following steps; placing the box ( 11 ) in such a way as to be able to take at least partially said film sheet ( 12 ,  13 ) away, leaving the bottom of the box ( 11 ) accessible, inserting the products ( 21 ) in the box ( 11 ), wrapping the products ( 21 ) in said film sheets ( 12 ,  13 ), heating the content of the box ( 11 ) with means for providing a concentrated ventilation from the top, and, once the shrinking of the thermoplastic material has occurred, closing the box ( 11 ) on the open side.  
     
     
         2 . Process, according to  claim 1 , characterised in that it provides for the use of a pair of film sheets of thermoplastic material ( 12 ,  13 ), bound to the long flaps ( 14 ,  15 ) of said box ( 11 ), when it is arranged in laid down configuration, which are placed the one upon the other at least in the middle of the bottom of the box.  
     
     
         3 . Process according to  claim 1 , characterised in that it foresees a step in which a soft material is placed onto the bottom of the box ( 11 ), if delicate products have to be packaged.  
     
     
         4 . Process according to  claim 1 , characterised in that the means for providing a concentrated ventilation from the top are chosen among: an oven with a ventilation concentrated from the top, a small tower with ventilation concentrated from the top, one or a plurality of even manual blowers.  
     
     
         5 . Process according to  claim 1 , characterised in that the film sheets ( 12 ,  13 ) can be bound to the long flaps ( 14 ,  15 ) of the box ( 11 ) by means of embedding, gluing, welding, clipping or sewing.  
     
     
         6 . Process according to  claim 1 , characterised in that said film sheets ( 12 ,  13 ) are heat-shrinking film sheets.  
     
     
         7 . Box-shaped packaging obtained with the process according to the preceding claims, characterised in that it comprises at least a film sheet made of thermoplastic or heat-shrinking material ( 12 ,  13 ) bound to a flap of the box ( 11 ), wherein inside said film sheet ( 12 ,  13 ) made of thermoplastic material, which is wrapped around and heated, products ( 21 ) to be packaged are inserted.  
     
     
         8 . Box-shaped packaging according to  claim 7 , characterised in that it comprises two film sheets ( 12 ,  13 ) made of thermoplastic or heat-shrinking material bound to opposite flaps ( 14 ,  15 ) of the box ( 11 ) inside which products ( 21 ) to be packaged are inserted.