Stack of bags

Abstract

A stack ( 2 ) of individual, pre-formed bags, each bag ( 4 ) comprising: a body portion ( 6 ) formed by front ( 8 ) and rear ( 10 ) walls having closed sides ( 12 ), a closed bottom ( 13 ) and an open mouth ( 14 ); first and second side handles ( 16, 18 ) extending away from the body portion ( 6 ) at opposite sides of the open mouth ( 14 ); and a block header ( 20 ) separably connected to the first and second side handles ( 16, 18 ), wherein the block header ( 20 ) is provided with at least one internal line of weakness ( 26, 28 ) such that it may be divided into individual attachment tabs ( 40, 41, 42 ), each attachment tab being provided with a support member receiving aperture ( 43, 44, 45 ) for receiving a support member of a bag dispenser.

1 . A stack of individual, pre-formed bags, each bag comprising: a body portion formed by front and rear walls having closed sides, a closed bottom and an open mouth; first and second side handles extending away from the body portion at opposite sides of the open mouth; and a block header separably connected to the first and second side handles, wherein the block header is provided with at least one internal line of weakness such that it may be divided into individual attachment tabs, each attachment tab being provided with a support member receiving aperture for receiving a support member of a bag dispenser.  
   
   
       2 . A stack of individual, pre-formed bags according to  claim 1 , wherein the block header is attached to the body portion of the bags at the mouth of the bags.  
   
   
       3 . A stack of individual, preformed bags according to  claim 2 , wherein the block header is provided with two internal lines of weakness such that it may be divided into three individual attachment tabs, first and second attachment tabs being attached to the first and second handles respectively and a third attachment tab being attached to he body portion at the mouth of the bag.  
   
   
       4 . A stack of individual, pre-formed bags according to  claim 2 , wherein the block header comprises a first portion in the form of a bridging web extending between the first and second side handles and a second portion extending downwardly from the mid-point of the bridging web and attached to the body portion at the mouth of the bag.  
   
   
       5 . A stack of individual, pre-formed bags according to  claim 2 , wherein the block header is in the form of a bridging web extending between the first and second side handles and the body portion of the bag comprises a projection extending upwardly from the mouth and attached to the bridging web.  
   
   
       6 . A stack of individual, pre-formed bags according to  claim 1 , wherein a portion of the rear wall of one bag in the stack is attached to a portion of the front wall of the next bag in the stack.  
   
   
       7 . A stack of individual, pre-formed bags according to  claim 6 , wherein the attachment is effected by means of an adhesive.  
   
   
       8 . A stack of individual, pre-formed bags according to  claim 6 , wherein the attachment is effected by means of corona discharge treatment during the formation of the stack of bags.