Thin-Walled Plastic Tube with Label

Abstract

A thin-walled plastic tube having an axial direction and a radial direction is manufactured by injection moulding and includes a tube body with a tube shoulder with an emptying opening at a first end and an end closure at a second end, the tube body having a wall thickness of 0.3-1.2 mm. The plastic tube includes a label applied simultaneously with the injection moulding, the label having a plastic film with a tensile strength in the axial direction of the tube which is at least 100 N/mm 2 , preferably at least 150 N/mm 2 , and most preferably at least 210 N/mm 2 measured according to DIN ISO 527-1/-3, an elongation at break which is at most 70%, preferably at most 50%, and most preferably at most 25% measured according to DIN ISO 527-1/-3, and a thickness of at most 90 μm and preferably of at most 75 μm.

1 . A thin-walled plastic tube ( 1 ) having an axial direction (a) and a radial direction (r), the plastic tube ( 1 ) being manufactured by injection moulding and comprising a tube body ( 2 ) with a tube shoulder with an emptying opening ( 4 ) at a first end ( 8 ) and an end closure ( 10 ) at a second end ( 9 ), the tube body ( 2 ) having a wall thickness of 0.3-1.2 mm, characterized in that the plastic tube ( 1 ) comprises a label ( 11 ) applied simultaneously with the injection moulding, the label ( 11 ) comprising a plastic film with a tensile strength in the axial direction (a) of the tube ( 1 ) which is at least 100 N/mm 2 , preferably at least 150 N/mm 2 , and most preferably at least 210 N/mm 2  measured according to DIN ISO 527-1/-3, an elongation at break which is at most 70%, preferably at most 50%, and most preferably at most 25% measured according to DIN ISO 527-1/-3, and a thickness of at most 90 μm and preferably of at most 75 μm. 
   
   
       2 . A thin-walled plastic tube ( 1 ) according to  claim 1 , the plastic film having a tensile strength in the radial direction (r) of the tube ( 1 ) of at least 50 N/mm 2 , preferably at least 80 N/mm 2 , and most preferably at least 120 N/mm 2 , and an elongation at break of at most 250%, preferably at most 200%, and most preferably at most 110%. 
   
   
       3 . A thin-walled plastic tube ( 1 ) according to  claim 1 , the label ( 11 ) extending around the entire tube body ( 2 ) in the radial direction (r). 
   
   
       4 . A thin-walled plastic tube according to  claim 1 , the label ( 11 ) extending over the entire length of the tube body ( 2 ), from the shoulder edge ( 13 ) to the end closure ( 10 ). 
   
   
       5 . A thin-walled plastic tube ( 1 ) according to  claim 1 , the label ( 11 ) extending in the longitudinal direction into the end closure ( 10 ) on the tube body ( 2 ). 
   
   
       6 . A thin-walled plastic tube ( 1 ) according to  claim 1 , the label ( 11 ) extending in the longitudinal direction over the edge ( 13 ) between the tube body ( 2 ) and the tube shoulder ( 3 ). 
   
   
       7 . A thin-walled plastic tube ( 1 ) according to  claim 1 , the plastic film being a multilayer film comprising at least one layer of oriented polypropylene. 
   
   
       8 . A thin-walled plastic tube ( 1 ) according to  claim 1 , the end closure ( 10 ) of the tube body ( 2 ) having a non-linear curved shape. 
   
   
       9 . A thin-walled plastic tube ( 1 ) according to  claim 1 , the plastic film having a density of between 0.4 and 1.2 g/cm 3  and preferably between 0.5 and 1.0 g/cm 3 . 
   
   
       10 . A thin-walled plastic tube ( 1 ) according to  claim 2 , the label ( 11 ) extending around the entire tube body ( 2 ) in the radial direction (r). 
   
   
       11 . A thin-walled plastic tube according to  claim 2 , the label ( 11 ) extending over the entire length of the tube body ( 2 ), from the shoulder edge ( 13 ) to the end closure ( 10 ). 
   
   
       12 . A thin-walled plastic tube according to  claim 3 , the label ( 11 ) extending over the entire length of the tube body ( 2 ), from the shoulder edge ( 13 ) to the end closure ( 10 ).