Abrasive article packaging and method of making same

Abstract

A system for packaging abrasive articles having an inner wrapper and an outer wrapper. The outer wrapper has a portion without vents that is positioned proximate a portion of the inner layer with vents. Aligning the vented portion of the inner wrapper and the vented portion of the outer wrapper so that they do not overlap restricts the transfer of air and moisture through the packaging system.

1 . A system for packaging at least one abrasive article comprising: 
 an inner wrapper comprising a first portion comprising at least one vent and a second portion absent vents; and    at least one outer wrapper in contact with at least a portion of said inner wrapper, said outer wrapper comprising a first portion comprising at least one vent and a second portion absent vents;    wherein said first portion of said inner wrapper is proximate said second portion of said outer wrapper.    
     
     
         2 . The system of  claim 1  wherein said inner wrapper is in contact with at least a portion of said abrasive article.  
     
     
         3 . The system of  claim 1  wherein said at least one abrasive article comprises at least one of an abrasive belt, an abrasive sheet, or an abrasive disc.  
     
     
         4 . The system of  claim 1  wherein said first wrapper and said second wrapper each comprise a shrink wrap film.  
     
     
         5 . The system of  claim 4  wherein said shrink wrap films comprise at least one of polyethylene, polypropylene, and copolymers thereof  
     
     
         6 . The system of  claim 1  wherein said at least one abrasive article comprises a plurality of abrasive discs.  
     
     
         7 . The system of  claim 6  wherein said plurality of abrasive discs comprises a plurality of fibre discs comprising: 
 a backing comprising cellulose fibers, and    an abrasive layer comprising a phenolic resin and abrasive particles.    
     
     
         8 . The system of  claim 6  wherein said plurality of abrasive discs comprises a first quantity of abrasive discs facing a first direction, and a second quantity of discs facing a second direction, wherein said first direction is opposite said second direction.  
     
     
         9 . The system of  claim 8  wherein said first quantity of abrasive discs and said second quantity of abrasive discs are commingled.  
     
     
         10 . The system of  claim 8  wherein said first quantity of abrasive discs and said second quantity of abrasive discs are divided.  
     
     
         11 . A method for packaging at least one abrasive article comprising: 
 providing an inner wrapper comprising a first portion comprising at least one vent and a second portion absent vents;    sealing said at least one abrasive article within said inner wrapper;    heating said inner wrapper to shrink said inner wrapper;    providing an outer wrapper comprising a first portion comprising at least one vent and a second portion absent vents;    sealing said abrasive article within said outer wrapper with said first portion of said inner wrapper proximate said second portion of said outer wrapper; and    heating said outer wrapper to shrink said outer wrapper.    
     
     
         12 . The method of  claim 11  further comprising perforating said first portion of said inner wrap to create said vent, and perforating said first portion of said outer wrapper to create said vent.  
     
     
         13 . The method of  claim 11  wherein said inner wrapper is in contact with at least a portion of said abrasive article.  
     
     
         14 . The method of  claim 11  wherein said at least one abrasive article comprises at least one of an abrasive belt, an abrasive sheet, or an abrasive fibre disc.  
     
     
         15 . The method of  claim 11  wherein said first wrapper and said second wrapper each comprise a shrink wrap film.  
     
     
         16 . The method of  claim 15  wherein said shrink wrap films comprise at least one of polyethylene, polypropylene, and copolymers thereof.  
     
     
         17 . The method of  claim 11  wherein said at least one abrasive article comprises a plurality of fibre discs comprising: 
 a backing comprising cellulose fibers, and    an abrasive layer comprising a phenolic resin and abrasive particles.    
     
     
         18 . The method of  claim 17  further comprising positioning a first quantity of said fibre discs to face a first direction and positioning a second quantity of said fibre discs to face second direction, wherein said first direction is opposite said second direction.  
     
     
         19 . The method of  claim 18  wherein said first quantity of fibre discs and said second quantity of fibre discs are commingled.  
     
     
         20 . The method of  claim 18  wherein said first quantity of fibre discs and said second quantity of fibre discs are divided.