Compression packaging, packaging unit and method for producing a packaging unit

Abstract

The invention relates to a compression packaging for a compressible item to be packaged ( 30 ), the packaging being formed from a film ( 10 ) which is stretched at least monoaxially. The film ( 10 ) has an enveloping portion ( 11 ), with which the item to be packaged ( 30 ) can be enclosed, and an edge reinforcement ( 15 ) which adjoins the enveloping portion ( 11 ) and can at least partially cover the item to be packaged ( 30 ) on the end thee ( 31 ) thereof. The edge reinforcement ( 15 ) has a film thickness which is greater than the film thickness of the enveloping portion ( 11 ), whereby an improved protection of the item to be packaged ( 30 ) in the region of the end face ( 31 ) can be achieved.

1 . A compression packaging for a compressible item to be packaged ( 30 ), which is configured from at least one mono-axially drawn film ( 10 ), wherein the film ( 10 ) comprises an enveloping portion ( 11 ), with which the item to be packaged ( 30 ) can be covered in its extent, and an edge reinforcement ( 15 ) adjacent to the enveloping portion ( 11 ), with which the item to be packaged ( 30 ) can be at least partially covered at its end face ( 31 ), and the edge reinforcement ( 15 ) comprises a film thickness, which is greater than the film thickness of the enveloping portion ( 11 ), wherein an improved protection of the item to be packaged ( 30 ) can be achieved in the area of the end face ( 31 ), wherein the film ( 10 ) comprises a significantly higher tensile strength in circumferential direction of the item to be packaged ( 30 ) than in the direction of the edge reinforcement ( 15 ). 
     
     
         2 . The compression packaging according to  claim 1 , characterized in that
 the film thickness of the edge reinforcement ( 15 ) is at least twice as big as the film thickness of the enveloping portion ( 11 ).   
     
     
         3 . The compression packaging according to  claim 1 , characterized in that
 the film ( 10 ) comprises two edge portions ( 12 , 13 ), which at leak partially overlap and are particularly glued or welded to one another.   
     
     
         4 . The compression packaging according to  claim 1 , characterized in that
 the film ( 10 ) is configured of multi-layers.   
     
     
         5 . The compression packaging according to  claim 1 , characterized in that
 the film ( 10 ) is drawn at least in a ratio 1:2, particularly at least in a ratio 1:3.   
     
     
         6 . The compression packaging according to  claim 1 , characterized in that
 the film ( 10 ) is bi-axially drawn.   
     
     
         7 . The compression packaging according to  claim 1 , characterized in that
 the film thickness of the enveloping portion ( 11 ) is in the area of 20 μm≦x≦70 μm particularly in the area of 30 μm≦x≦50 μm.   
     
     
         8 . The compression packaging according to  claim 1 , characterized in that
 the film ( 10 ) is a polymeric film, which is drawn in the running direction of the machine of a film stretch unit.   
     
     
         9 . A packaging unit ( 20 ) with a compressible item to be packaged ( 30 ), which is at least partially covered by a compression packaging, which is configured from a at least mono-axially drawn film ( 10 ), wherein the film ( 10 ) comprises an enveloping portion ( 11 ), with which the item to be packaged ( 30 ) is covered with in its extent, and an edge reinforcement ( 15 ) adjacent to the enveloping portion ( 11 ), with which the item to be packaged ( 30 ) is at least partially covered at its end face ( 31 ), and the edge reinforcement ( 15 ) comprises a film thickness, which is greater than the film thickness of the enveloping portion ( 11 ), wherein an improved protection of the item to be packaged ( 30 ) can be achieved in the area of the end face ( 31 ). 
     
     
         10 . The packaging unit ( 20 ) according to  claim 9 , characterized in that
 the edge reinforcement ( 15 ) covers at least 2% of the end face ( 31 ) of the item to be packaged ( 30 ), particularly covers at least 5%-50% of the end face ( 31 ) of the item to be packaged ( 30 ).   
     
     
         11 . The packaging unit ( 20 ) according to  claim 9 , characterized in that
 the edge reinforcement ( 15 ) of the film ( 10 ) abuts to the end face ( 31 ) of the item to be packaged ( 30 ), wherein particularly the edge reinforcement ( 15 ) at least partially covers the extent of the item to be packaged ( 30 ).   
     
     
         12 . The packaging unit ( 20 ) according to  claim 9 , characterized in that
 the end face ( 31 ) of the item to be packaged ( 30 ) comprises a circumferential edge ( 33 ), which is protected by the edge reinforcement ( 15 ).   
     
     
         13 . The packaging unit ( 20 ) according to  claim 9 , characterized in that
 the item to be packaged ( 30 ) comprises one of the following geometrical forms: cylinder, cuboid, sphere, cube.   
     
     
         14 . The packaging unit ( 20 ) according to  claim 9 , characterized in that
 the item to be packaged ( 30 ) is one of the following goods: mineral wool, textiles, foodstuffs, toys, carpet, foam mat, paper, suitcase.   
     
     
         15 . The packaging unit ( 20 ) according to  claim 9 , characterized in that
 the film ( 10 ) comprises a significantly higher tensile strength in circumferential direction of the item to be packaged ( 30 ) than in the direction of the edge reinforcement ( 15 ).   
     
     
         16 . A method for the production of a packaging unit ( 20 ) particularly according to  claim 9  with a compressible item to be packaged ( 30 ), which is at least partially covered by a compression packaging, which is configured from a at least mono-axially drawn film ( 10 ), wherein the film ( 10 ) comprises an enveloping portion ( 11 ), with which the item to be packaged ( 30 ) is covered in its extent and an edge reinforcement ( 15 ) adjacent to the enveloping portion ( 11 ), with which the item to be packaged ( 30 ) is at least partially covered at its end face ( 31 ), and the edge reinforcement ( 15 ) comprises a film thickness, which is greater than the film thickness of the enveloping portion ( 11 ), wherein an improved protection of the item to be packaged ( 30 ) can be achieved in the area of the end face ( 31 ), wherein the following production steps are intended:
 a) extrusion of the film ( 10 ) 
 b) mono-axial drawing of the film ( 10 ) 
 c) provision and compression of the item to be packaged ( 30 ) 
 d) covering of the compressed item to be packaged ( 30 ) with the film ( 10 ), wherein the film ( 10 ) is configured broader than the item to be packaged ( 30 ), so that at least at the end face ( 31 ) of the item to be packaged ( 30 ) a protrusion ( 18 ) of the film ( 10 ) results, which is not directly contacting the item to be packaged ( 30 ) 
 e) decompressing of the item to be packaged ( 30 ), wherein at the same time the protrusion ( 18 ) abuts to the end face ( 31 ) of the item to be packaged ( 30 ). 
 
     
     
         17 . The method according to  claim 16 , characterized in that
 in step b) the film ( 10 ) is heated to a suitable temperature and is drawn with a stretch ratio of at least 1:2, wherein the film ( 10 ) results, which comprises a tensile strength Z in the direction of the extent of the item to be packaged ( 30 ), which is approximately in the area between 100 N/mm 2 ≦Z≦300 N/mm 2  and/or comprises an elasticity D in the direction of the extent of the item to be packaged ( 30 ), which is in the area between approximately 5%≦D≦40%.   
     
     
         18 . The compression packaging according to  claim 2 , characterized in that
 the film ( 10 ) comprises two edge portions ( 12 , 13 ), which at least partially overlap and are particularly glued or welded to one another.   
     
     
         19 . The packaging unit ( 20 ) according to  claim 10 , characterized in that
 the edge reinforcement ( 15 ) of the film ( 10 ) abuts to the end face ( 31 ) of the item to be packaged ( 30 ), wherein particularly the edge reinforcement ( 15 ) at least partially covers the extent of the item to be packaged ( 30 ).