Laminated pet food bag

Abstract

The present invention encompasses a laminated bag having a multi-ply structure and stain hiding abilities that prevent grease from bleeding through to the outer portion of the bag. More particularly, the present invention provides the construction of the bag and materials from which the bag is made. The multi-ply structured bag comprises an outer lamination play, an intermediate paper ply and an inside ply. The outer lamination ply being constructed by lamination of a clear film layer, a co-extruded white and gray polyethylene layer and a paper layer. The bag provides stain hiding characteristics, a bright outer appearance and a durable outer layer that will show less wear on the bag.

1 . A bag having a multi-ply structure, comprising: 
 an outer lamination ply;    an intermediate paper ply; and    an inside ply;    wherein said outer lamination ply comprises a clear film layer, a co-extruded polyethylene layer, and a paper layer;    wherein said clear film layer, said co-extruded polyethylene layer and paper layer are laminated to form said outer lamination ply; and    wherein said outer lamination ply, said intermediate paper ply and said inside ply are adjoined and assembled to form a unitary wall structure for making the bag.    
   
   
       2 . A bag as recited in  claim 1 , wherein said co-extruded polyethylene layer comprises two pigmented layers.  
   
   
       3 . A bag as recited in  claim 2 , wherein said pigmented layers are approximately 2 Mils thick.  
   
   
       4 . A bag as recited in  claim 3 , wherein said co-extruded polyethylene layer comprises a first layer that is 85% of said thickness and a second layer that is 15% of said thickness.  
   
   
       5 . A bag as recited in  claim 4 , wherein said first layer is a white pigment and said second layer is a gray pigment.  
   
   
       6 . A bag as recited in  claim 1 , wherein said bag has a front panel, a back panel, and gusseted side panels joining the front and back panels.  
   
   
       7 . A bag as recited in  claim 1 , wherein said outer lamination ply hides stains of the intermediate paper ply.  
   
   
       8 . A bag as recited in  claim 1 , wherein said out lamination ply prevents bleed through of one or more substances within said bag.  
   
   
       9 . A bag as recited in  claim 7 , wherein said one or more substances within the bag is grease.  
   
   
       10 . A bag as recited in  claim 1 , wherein said outer lamination ply provides a brightness that enhances the appearance of said bag.  
   
   
       11 . A bag as recited in  claim 10 , wherein said outer lamination ply has ink and lacquers applied to provide a decorative and pleasing exterior appearance to the bag.  
   
   
       12 . A bag as recited in  claim 1 , wherein said unitary wall structure is utilized to provide a front panel, a back panel and gusseted sides panels, and wherein said front panel, said back panel and said gusseted side panels are adjoined to for a bag with a single closed end and an open end.  
   
   
       13 . A method for hiding stains on a laminated bag comprising: 
 providing a multi-ply structure for constructing said bag;    said multi-ply structure comprising: 
 an outer lamination ply;  
 an intermediate paper ply; and  
 an inside ply;  
   wherein said outer lamination ply is adjoined to said intermediate paper ply, which is in turn adjoined to said inside ply; and    wherein said outer lamination ply has stain hiding characteristics.    
   
   
       14 . A method as recited in  claim 13 , wherein the stain hiding characteristic of said outer lamination ply is achieved by constructing said outer lamination ply utilizing a clear film layer, a co-extruded white and gray polyethylene layer; and a paper layer.  
   
   
       15 . A method as recited in  claim 14 , wherein said clear film layer, said co-extruded white and gray polyethylene layer and said paper layer are laminated together to form said outer lamination ply.  
   
   
       16 . A bag as recited in  claim 14 , wherein said white and gray polyethylene layer provides a masking of any stains that are on said paper layer.  
   
   
       17 . A bag as recited in  claim 13 , wherein said paper layer does not contain any fluorocarbons.  
   
   
       18 . A bag as recited in  claim 13 , wherein said outer lamination ply provides a brightness that enhances the exterior appearance of said bag.  
   
   
       19 . A bag for holding pet food, comprising: 
 a pair of substantially rectangular shaped front and back panels having top and bottom ends and opposite side edges;    a pair of opposite side panels joining the opposite side edges of the front and back face panels, said side panels each having a longitudinal accordion pleat therein defining longitudinal gusset folds in the side panels;    closure means on bag end for securing the front and back face panels and said pair of gusseted side panels to close one end of the bag;    said front and back face panels and gusseted side panels comprising a multi-wall structure formed of an outer lamination ply, an intermediate paper ply, and an inside ply; and    said outer lamination ply providing a bright appearance and stain hiding characteristics.    
   
   
       20 . A bag for holding pet food as recited in  claim 19 , wherein said outer lamination ply comprises: 
 a clear film layer;    a co-extruded polyethylene layer; and    a paper layer.    
   
   
       21 . A bag for holding pet food as recited in  claim 20 , wherein said clear film layer, said co-extruded polyethylene layer and paper layer are laminated to form said outer lamination ply and wherein said outer lamination ply, said intermediate paper ply and said inside ply are adjoined and assembled to form a unitary multi-wall structure, for making the bag.  
   
   
       22 . A bag as recited in  claim 20 , wherein said co-extruded polyethylene layer comprises two pigmented layers.  
   
   
       23 . A bag as recited in  claim 22  wherein said pigmented layers are approximately 2 Mils thick.  
   
   
       24 . A bag as recited in  claim 21 , wherein said co-extruded polyethylene layer comprises a first layer that is 85% of said thickness and a second layer that is 15% of said thickness.  
   
   
       25 . A bag as recited in  claim 24 , wherein said first layer is a white pigment and said second layer is a gray pigment.  
   
   
       26 . A bag for holding pet food as recited in  claim 19 , wherein said outer lamination provides a protection that results in said bag having less shop wear appearance.  
   
   
       27 . A bag for holding pet food as recited in  claim 19 , wherein said outer lamination provides a surface that allows for ease of printing and fabrication of said.