Adhesive film constructions with detectable transparent release liners

Abstract

The present invention provides adhesive film constructions that include a detectable transparent release liner. The release liner includes a transparent polymeric core and one or more detection stripes. The detection stripes are parallel to the longitudinal length of the construction. By providing a release liner that is transparent over a majority of its major surfaces (except for the detection stripes), the problem of edge detection when using transparent liners and/or transparent adhesive film constructions can be addressed without significantly degrading the ability to see through a majority of the film and liner composite.

What is claimed is:  
     
         1 . An adhesive film construction comprising: 
 a continuous length film that comprises opposing edges extending along a length of the film;    adhesive located on a first major surface of the film;    a transparent release liner attached to the film over the adhesive; and    at least one detection stripe on the transparent release liner, the at least one detection stripe extending along substantially all of the length of the film, wherein the at least one detection stripe is parallel to the opposing edges of the film, whereby removal of the release liner from the adhesive removes the at least one detection stripe from the adhesive film construction.    
     
     
         2 . A construction according to  claim 1 , wherein the at least one detection stripe comprises a coating on the transparent release liner.  
     
     
         3 . A construction according to  claim 1 , wherein the at least one detection stripe comprises a tape attached to the release liner.  
     
     
         4 . A construction according to  claim 1 , further comprising two or more of the at least one detection stripes.  
     
     
         5 . A construction according to  claim 1 , further comprising three or more of the at least one detection stripes.  
     
     
         6 . A construction according to  claim 1 , wherein the film comprises a transparent film.  
     
     
         7 . A construction according to  claim 1 , wherein the film comprises a transparent film, and further wherein the film comprises an image located thereon.  
     
     
         8 . A construction according to  claim 1 , wherein the film comprises a perforated film.  
     
     
         9 . A construction according to  claim 1 , wherein the film comprises a perforated one-way vision film.  
     
     
         10 . A construction according to  claim 1 , wherein the at least one detection stripe occupies about 30% or less of a major surface of the release liner.  
     
     
         11 . A construction according to  claim 1 , wherein the at least one detection stripe occupies about 1% or more of the major surface of the release liner.  
     
     
         12 . An adhesive film construction comprising: 
 a continuous length film that comprises opposing edges extending parallel to each other along a length of the film;    adhesive located on a first major surface of the film, wherein at least a portion of the film and the adhesive are transparent;    a transparent release liner attached to the film over the adhesive; and    a plurality of detection stripes on the transparent release liner, the plurality detection stripes comprising a coating on the transparent release liner, wherein each detection stripe of the plurality of detection stripes extends along substantially all of the length of the film, wherein each detection stripe of the plurality of detection stripes is parallel to the opposing edges of the film, wherein the plurality of detection stripes occupy about 20% or less of a major surface of the release liner, and wherein the plurality of detection stripes occupy about 1% or more of the major surface of the release liner; whereby removal of the release liner from the adhesive removes the plurality of detection stripes from the adhesive film construction.    
     
     
         13 . A method of processing an adhesive film construction manufactured according to  claim 1 , the method comprising: 
 threading the adhesive film construction into a film processing sensor, wherein the processing system comprises a film sensor;    detecting at least one of the detection stripes with the film sensor; and    manipulating the adhesive film construction based on the detecting.    
     
     
         14 . A method according to  claim 13 , wherein the film sensor emits ultraviolet electromagnetic energy, and further wherein the detecting comprises detecting at least a portion of the ultraviolet electromagnetic energy emitted by the film sensor.  
     
     
         15 . A method according to  claim 13 , wherein the manipulating comprises feeding the adhesive film composite through the film processing system.  
     
     
         16 . A method according to  claim 13 , wherein the manipulating comprises steering the adhesive film composite within the film processing system.