Tubular bag provided with an openable tubular bag body

Abstract

Tubular pouch (10), having a tubular pouch body (11) and a lid piece (12) and optionally having a base. The tubular pouch body (11) is formed by means of a fin-seal (14), with at least one weakness of material (16, 17) extending, starting from the free longitudinal edge (15) of the fin-seal (14), around the circumference of the tubular pouch body (11) so that, as required, the tubular pouch (10) can be opened along that weakness of material (16, 17).

1 . A tubular pouch, comprising a tubular pouch body and a lid piece, said tubular pouch body being formed by means of a fin-seal having a free longitudinal edge, wherein at least one weakness of material starts from the free longitudinal edge of the fin-seal and extends around the circumference of the tubular pouch body so that, as required, the tubular pouch can be opened along that weakness of material. 
   
   
       2 . A tubular pouch according to  claim 1 , wherein the weakness of material is a stamped line selected from the group consisting of a continuously extending stamped line, and a stamped line of non-continuous configuration. 
   
   
       3 . A tubular pouch according to  claim 1 , wherein there are provided two stamped lines or other weaknesses of material, spaced apart from one another axially and each extending around the circumference of the tubular pouch body, which between them define a tear-open strip. 
   
   
       4 . A tubular pouch according to  claim 1 , wherein the weakness of material is formed close to the lid piece. 
   
   
       5 . A tubular pouch according to  claim 1 , wherein the weakness of material adjoins a cut formed at the free edge of the fin-seal. 
   
   
       6 . A tubular pouch according to  claim 5 , wherein the cut is in the form of a V-notch. 
   
   
       7 . A tubular pouch according to  claim 1 , wherein the lid piece is sealed or adhesively bonded to the tubular pouch body. 
   
   
       8 . A tubular pouch according to  claim 1 , further including at least one barrier layer selected from the group consisting of SiO 2 , AlO x , ethyl vinyl alcohol or a metal foil. 
   
   
       9 . A tubular pouch according to  claim 1 , wherein the lid piece of relatively rigid construction and has sealable or adhesively bondable rims. 
   
   
       10 . A tubular pouch according to  claim 9 , wherein the lid piece is in the form of a shallow dish and is produced by deep-drawing or injection-molding. 
   
   
       11 . A tubular pouch according to  claim 9 , further comprising stand-up, standing or other base produced from a laminate and comprises a fold selected from the group consisting of a V-fold, and a W-fold. 
   
   
       12 . A tubular pouch according to  claim 1 , wherein a part(s) selected from the group consisting of said lid piece, said tubular pouch body, said lid piece and said tubular pouch body has/have a thickness selected from the group consisting of in the range of from 50μ to 500μ, especially from 80μ to 400μ, preferably from 100μ to 350μ. 
   
   
       13 . A tubular pouch according to  claim 1 , wherein a part(s) selected from the group consisting of said lid piece, said tubular pouch body, and said lid piece and said tubular pouch body is/are sterilisable. 
   
   
       14 . A tubular pouch according to  claim 2 , wherein at least the tubular pouch body comprises at least one unidirectionally stretched foil. 
   
   
       15 . A tubular pouch according to  claim 15 , wherein said unidirectionally stretched foil is part of a laminate. 
   
   
       16 . A tubular pouch according to  claim 16 , wherein the thickness of the unidirectionally stretched foil is greater than that of the remaining further layers of the laminate. 
   
   
       17 . A tubular pouch according to  claim 15 , wherein at least one unidirectionally stretched foil comprises material selected from the group consisting of at least one polyolefin, at least one polyamide, at least one ester, polyethylene, polypropylene, polyethylene terephthalate, and any two or more thereof. 
   
   
       18 . A tubular pouch according to  claim 15 , wherein the unidirectionally stretched foil has a thickness in selected from the group consisting of in the range of from 10μ to 200μ, from 35μ to 155μ, and from 45μ to 95μ. 
   
   
       19 . A tubular pouch according to  claim 1 , further comprising a stand-up, standing or other base. 
   
   
       20 . A tubular pouch according to  claim 19 , wherein a part(s) selected from the group consisting of said lid piece, said base, and said lid piece and said base is/are sealed or adhesively bonded to said tubular pouch body. 
   
   
       21 . A tubular pouch according to  claim 1 , wherein said tubular pouch body is produced from an aluminium or other laminate having at least one sealing layer. 
   
   
       22 . A tubular pouch according to  claim 19 , wherein a part(s) selected from the group consisting of said lid piece, said base, and said lid piece and said base are of relatively rigid construction and have sealable or adhesively bondable rims. 
   
   
       23 . A tubular pouch according to  claim 19 , further comprising a stand-up, standing or other base in the form of a shallow dish produced by deep-drawing or injection-molding. 
   
   
       24 . A tubular pouch according to  claim 1 , wherein said lid piece is produced from substantially the same materials as said tubular pouch body. 
   
   
       25 . A tubular pouch according to  claim 19 , wherein a part(s) selected from the group consisting of said lid piece, said base, said tubular pouch body, any two thereof, and all three thereof has/have a thickness selected from the group consisting of in the range of from 50μ to 500μ, from 80μ to 400μ, and from 100μ to 350μ. 
   
   
       26 . A tubular pouch according to  claim 19 , a part(s) selected from the group consisting of said lid piece, said base, said tubular pouch body, any two thereof, and all three thereof is/are sterilisable. 
   
   
       27 . A tubular pouch according to  claim 20 , wherein a part(s) selected from the group consisting of said lid piece, said base, and said lid piece and said base are produced from substantially the same materials as the tubular pouch body.