Adhesive film constructions with detectable transparent release liners
Assignee3M Innovative Properties Company
InventorsJoseph P. Spolidoro, David J. Murphy, Andrew W. Morris
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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.
Claims16
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.
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.
Dependencies are inferred from the claim text.