Valve bag

Abstract

A valve sack for bulk material such as cement, gypsum, pellets, animal feed, or similar having a stand-up base, preferably a cross-base or a block base, and having a valve base that is disposed opposite the stand-up base and into which a valve hose is worked that forms a valve for filling the valve sack in the region of a first corner fold of the base fold, characterized in that the valve hose is formed from a thermal material and from a material different therefrom, with both materials being weldable or sealable with one another to close the valve.

1 . A valve sack ( 10 ) for bulk material such as cement, gypsum, pellets, animal feed, or similar having a stand-up base ( 20 ), preferably a cross-base or a block base, and having a valve base ( 30 ) that is disposed opposite the stand-up base ( 20 ) and into which a valve hose ( 50 ) is worked that forms a valve ( 50 ) for filling the valve sack ( 10 ) in the region of a first corner fold ( 32 ) of the base fold, wherein
 the valve hose ( 50 ) is formed from a thermal material ( 54 ,  55 ,  56 ) and a material ( 52 ,  40 ,  41 ) different therefrom, with both materials ( 40 ,  41 ,  52 ,  54 ,  55 ,  56 ) being weldable or sealable with one another to close the valve ( 20 ).   
     
     
         2 . A valve sack ( 10 ) in accordance with  claim 1 , wherein the different material is a carrier material ( 52 ) on which a thermal material ( 54 ,  55 ,  56 ) is applied, with one or more cut-outs of the thermal material ( 54 ,  55 ,  56 ) being provided over the hose periphery of the formed valve ( 50 ). 
     
     
         3 . A valve sack ( 10 ) in accordance with  claim 2 , wherein the thermal material ( 54 ,  56 ) is applied to the carrier material ( 52 ) centrally to the center axis ( 37 ) of the valve base ( 30 ), with the applied thermal material ( 54 ,  56 ) neither overlapping nor closing to form a hose with a folded closed valve base ( 30 ). 
     
     
         4 . A valve sack ( 10 ) in accordance with  claim 2 , wherein the thermal material ( 54 ,  55 ) is applied to the carrier material ( 52 ) in two or more separate regions over the valve periphery, with the thermal material regions ( 54 ,  55 ) preferably terminating flush with at least one side edge of the carrier material ( 52 ). 
     
     
         5 . A valve sack ( 10 ) in accordance with  claim 2 , wherein the thermal material ( 54 ,  55 ) is adhesively bonded to the carrier material ( 52 ) or is formed by a coating ( 56 ) of the carrier material ( 52 ). 
     
     
         6 . A valve sack ( 10 ) in accordance with  claim 1 , wherein the thermal material ( 54 ,  55 ,  56 ) is polyethylene and the different material ( 52 ,  40 ,  41 ) is paper. 
     
     
         7 . A valve sack in accordance with  claim 1 , wherein the different material is a top sheet ( 40 ,  41 ) that is applied to the side flaps ( 38 ,  39 ) after their folding closed. 
     
     
         8 . A valve sack in accordance with  claim 7 , wherein the top sheet ( 40 ,  41 ) extends up to the outer valve inlet edge or up to the ends ( 27 ,  27 ′) of the side flaps  38 ,  39 . 
     
     
         9 . A valve sack ( 10 ) in accordance with  claim 4 , wherein the thermal material ( 54 ,  55 ) is adhesively bonded to the carrier material ( 52 ) or is formed by a coating ( 56 ) of the carrier material ( 52 ). 
     
     
         10 . A valve sack ( 10 ) in accordance with  claim 3 , wherein the thermal material ( 54 ,  55 ) is adhesively bonded to the carrier material ( 52 ) or is formed by a coating ( 56 ) of the carrier material ( 52 ). 
     
     
         11 . A valve sack ( 10 ) in accordance with  claim 10 , wherein the thermal material ( 54 ,  55 ,  56 ) is polyethylene and the different material ( 52 ,  40 ,  41 ) is paper. 
     
     
         12 . A valve sack ( 10 ) in accordance with  claim 9 , wherein the thermal material ( 54 ,  55 ,  56 ) is polyethylene and the different material ( 52 ,  40 ,  41 ) is paper. 
     
     
         13 . A valve sack ( 10 ) in accordance with  claim 5 , wherein the thermal material ( 54 ,  55 ,  56 ) is polyethylene and the different material ( 52 ,  40 ,  41 ) is paper. 
     
     
         14 . A valve sack ( 10 ) in accordance with  claim 4 , wherein the thermal material ( 54 ,  55 ,  56 ) is polyethylene and the different material ( 52 ,  40 ,  41 ) is paper. 
     
     
         15 . A valve sack ( 10 ) in accordance with  claim 3 , wherein the thermal material ( 54 ,  55 ,  56 ) is polyethylene and the different material ( 52 ,  40 ,  41 ) is paper. 
     
     
         16 . A valve sack ( 10 ) in accordance with  claim 2 , wherein the thermal material ( 54 ,  55 ,  56 ) is polyethylene and the different material ( 52 ,  40 ,  41 ) is paper. 
     
     
         17 . A valve sack in accordance with  claim 11 , wherein the different material is a top sheet ( 40 ,  41 ) that is applied to the side flaps ( 38 ,  39 ) after their folding closed. 
     
     
         18 . A valve sack in accordance with  claim 10 , wherein the different material is a top sheet ( 40 ,  41 ) that is applied to the side flaps ( 38 ,  39 ) after their folding closed. 
     
     
         19 . A valve sack in accordance with  claim 9 , wherein the different material is a top sheet ( 40 ,  41 ) that is applied to the side flaps ( 38 ,  39 ) after their folding closed. 
     
     
         20 . A valve sack in accordance with  claim 13 , wherein the different material is a top sheet ( 40 ,  41 ) that is applied to the side flaps ( 38 ,  39 ) after their folding closed.