Easy Access Woven Plastic Bags

Abstract

A woven laminated plastic bag having a weakened portion is provided. The weakened portion is generally defined by a plurality of perforations in the bag. In various aspects the bag can be fabricated from woven polypropylene and/or polyethylene layer which can be laminated with a film layer, can form a pinch bottom bag, and can have one or both sides include graphics and/or printing. The bag can also provide a top end and/or a bottom end either or both of which provide a discrete area which may contain discrete graphics and/or printing.

What is claimed is: 
     
         1 . A bag comprising:
 a front wall, a back wall, a first side wall, and a second side wall;   wherein each of the front wall, the back wall, the first side wall, and the second side wall respectively further comprise: an interior surface, an exterior surface, a first end, and a second end;   wherein each of the front wall, the back wall, the first side wall, and the second side wall comprise a first layer and a second layer;   wherein the first layer comprises woven strips comprising polypropylene, and the second layer comprises a polymer film comprising polypropylene;   wherein the bag further comprises a plurality of perforations proximal the first end of the bag that define a line;   wherein each of the plurality of perforations penetrates through at least a portion of the first layer or a portion of the second layer;   wherein the back wall comprises a first back portion arranged on a first side of the line and a second back portion arranged on a second side of the line;   wherein the first end of the back wall extends further than a first portion of the first side wall and a first portion of the second side wall at respective first ends of the first portion of the first side wall and the first portion of the second side wall;   wherein the first portion of the first side wall and the first portion of the second side wall extend further than a second portion of the first side wall and a second portion of the second side wall at respective first ends of the second portion of the first side wall and the second portion of the second side wall, the second portions of the first side wall and the second side wall each being proximal to the front wall;   wherein the second portion of the first side wall and the second portion of the second side wall extend further than the first end of the front wall; and   wherein, when the first end of the bag is sealed, the first back portion and the second back portion are adapted to be pulled from the first side wall to form an opening.   
     
     
         2 . The bag according to  claim 1 , wherein the first back portion and the second back portion are adapted to be pulled apart from each other along the line to increase a size of the opening. 
     
     
         3 . The bag according to  claim 1 , wherein the bag further comprises an adhesive on the exterior surface of the first side wall. 
     
     
         4 . The bag according to  claim 3 , wherein the adhesive on the exterior surface of the first side wall extends from a first location at which the first side wall and the back wall join to a second location at which the first side wall and the front wall join, and the adhesive closes a portion of the first side wall. 
     
     
         5 . The bag according to  claim 3 , wherein the adhesive on the exterior surface of the first side wall is located proximal the first end of the bag. 
     
     
         6 . The bag according to  claim 1 , wherein the first and second layers are laminated together using adhesive lamination or extrusion lamination. 
     
     
         7 . The bag according to  claim 1 , wherein, when one end of the bag is sealed to form an interior cavity, the interior cavity can hold at least 10 pounds of material without tearing. 
     
     
         8 . The bag according to  claim 1 , wherein the first portion of the first side wall and the second portion of the first side wall are separated by a first angled cut, and the first portion of the second side wall and the second portion of the second side wall are separated by a second angled cut, the first and second angled cuts extending at an angle of about 45 degrees with respect to the first end of the bag. 
     
     
         9 . The bag according to  claim 1 , wherein the line extends from 20% of a first length across the front wall of the bag and the first side wall of the bag to 50% of a second length of a width of the back wall of the bag. 
     
     
         10 . The bag according to  claim 1 , wherein the plurality of perforations enables opening the bag by tearing the plurality of perforations using less force than tearing other portions of the bag. 
     
     
         11 . A bag comprising:
 a front wall, a back wall, a first side wall, and a second side wall;   wherein each of the front wall, the back wall, the first side wall, and the second side wall respectively further comprise: an interior surface, an exterior surface, a first end, and a second end;   wherein each of the front wall, the back wall, the first side wall, and the second side wall comprise a first layer and a second layer;   wherein the first layer comprises woven strips comprising polyethylene, and the second layer comprises a polymer film comprising polyethylene;   wherein the bag further comprises a plurality of perforations proximal the first end of the bag that define a line;   wherein each of the plurality of perforations penetrates through at least a portion of the first layer or a portion of the second layer;   wherein the back wall comprises a first back portion arranged on a first side of the line and a second back portion arranged on a second side of the line;   wherein the first end of the back wall extends further than a first portion of the first side wall and a first portion of the second side wall at respective first ends of the first portion of the first side wall and the first portion of the second side wall;   wherein the first portion of the first side wall and the first portion of the second side wall extend further than a second portion of the first side wall and a second portion of the second side wall at respective first ends of the second portion of the first side wall and the second portion of the second side wall, the second portions of the first side wall and the second side wall each being proximal to the front wall;   wherein the second portion of the first side wall and the second portion of the second side wall extend further than the first end of the front wall; and   wherein, when the first end of the bag is sealed, the first back portion and the second back portion are adapted to be pulled apart from the first side wall to form an opening.   
     
     
         12 . The bag according to  claim 11 , wherein the first back portion and the second back portion are adapted to be pulled apart from each other along the line to increase a size of the opening. 
     
     
         13 . The bag according to  claim 11 , wherein the bag further comprises an adhesive on the exterior surface of the first side wall. 
     
     
         14 . The bag according to  claim 13 , wherein the adhesive on the exterior surface of the first side wall extends from a first location at which the first side wall and the back wall join to a second location at which the first side wall and the front wall join, and the adhesive closes a portion of the first side wall. 
     
     
         15 . The bag according to  claim 13 , wherein the adhesive on the exterior surface of the first side wall is located proximal the first end of the bag. 
     
     
         16 . The bag according to  claim 11 , wherein the first and second layers are laminated together using adhesive lamination or extrusion lamination. 
     
     
         17 . The bag according to  claim 11 , wherein, when one end of the bag is sealed to form an interior cavity, the interior cavity can hold at least 10 pounds of material without tearing. 
     
     
         18 . The bag according to  claim 11 , wherein the first portion of the first side wall and the second portion of the first side wall are separated by a first angled cut, and the first portion of the second side wall and the second portion of the second side wall are separated by a second angled cut, the first and second angled cuts extending at an angle of about 45 degrees with respect to the first end of the bag. 
     
     
         19 . The bag according to  claim 11 , wherein the line extends from 20% of a first length across the front wall of the bag and the first side wall of the bag to 50% of a second length of a width of the back wall of the bag. 
     
     
         20 . The bag according to  claim 11 , wherein the plurality of perforations enables opening the bag by tearing the plurality of perforations using less force than tearing other portions of the bag. 
     
     
         21 . A bag comprising:
 a front wall, a back wall, a first side wall, and a second side wall;   wherein each of the front wall, the back wall, the first side wall, and the second side wall respectively further comprise: an interior surface, an exterior surface, a first end, and a second end;   wherein each of the front wall, the back wall, the first side wall, and the second side wall comprise a first layer and a second layer;   wherein the first layer comprises woven polymer strips comprising polypropylene, polyethylene, or both and the second layer comprises an oriented polymer film comprising polypropylene, polyethylene, or both;   wherein the bag further comprises a plurality of perforations proximal the first end of the bag that define a line;   wherein each of the plurality of perforations penetrates through at least a portion of the first layer or a portion of the second layer;   wherein the back wall comprises a first back portion arranged on a first side of the line and a second back portion arranged on a second side of the line;   wherein the first end of the back wall extends further than a first portion of the first side wall and a first portion of the second side wall at respective first ends of the first portion of the first side wall and the first portion of the second side wall;   wherein the first portion of the first side wall and the first portion of the second side wall extend further than a second portion of the first side wall and a second portion of the second side wall at respective first ends of the second portion of the first side wall and the second portion of the second side wall, the second portions of the first side wall and the second side wall each being proximal to the front wall;   wherein the second portion of the first side wall and the second portion of the second side wall extend further than the first end of the front wall; and   wherein, when the first end of the bag is sealed, the first back portion and the second back portion are adapted to be pulled apart from the first side wall to form an opening from which the contents of the bag may be poured.   
     
     
         22 . The bag according to  claim 21 , wherein the bag further comprises an adhesive on the exterior surface of the first side wall. 
     
     
         23 . The bag according to  claim 22 , wherein the adhesive on the exterior surface of the first side wall extends from a first location at which the first side wall and the back wall join to a second location at which the first side wall and the front wall join, and the adhesive closes a portion of the first side wall. 
     
     
         24 . The bag according to  claim 22 , wherein the adhesive on the exterior surface of the first side wall is located proximal the first end of the bag. 
     
     
         25 . The bag according to  claim 22 , wherein the first side wall further comprises a gusset. 
     
     
         26 . The bag according to  claim 25 , wherein the adhesive closes first and second sides of the gusset of the first side wall proximal the top end of the bag. 
     
     
         27 . The bag according to  claim 25 , further comprising an adhesive located on an exterior surface of the second side wall. 
     
     
         28 . The bag according to  claim 27 , wherein the second side wall comprises a gusset, and wherein the adhesive closes the gussets of the first side wall proximal the top end of the bag and the second side wall proximal the top end of the bag. 
     
     
         29 . The bag according to  claim 21 , wherein the first and second layers are laminated together using adhesive lamination or extrusion lamination. 
     
     
         30 . The bag according to  claim 21 , wherein, when one end of the bag is sealed to form an interior cavity, the interior cavity can hold at least 10 pounds of material without tearing. 
     
     
         31 . The bag according to  claim 21 , wherein the first portion of the first side wall and the second portion of the first side wall are separated by a first angled cut, and the first portion of the second side wall and the second portion of the second side wall are separated by a second angled cut, the first and second angled cuts extending at an angle of about 45 degrees with respect to the first end of the bag. 
     
     
         32 . The bag according to  claim 21 , wherein the line extends from 20% of a first length across the front wall of the bag and the first side wall of the bag to 50% of a second length of a width of the back wall of the bag. 
     
     
         33 . The bag according to  claim 21 , wherein the plurality of perforations enables opening the bag by tearing the plurality of perforations using less force than tearing other portions of the bag. 
     
     
         34 . The bag according to  claim 21 , wherein the first back portion and the second back portion are separable from each other along the line to increase a size of the opening.