Adhesive articles having repositionability or slidability characteristics

Abstract

An adhesive article exhibiting air release or egress, repositionability, and/or slidability characteristics. An adhesive article comprises an adhesive layer comprising an adhesive surface comprising discrete forms of non-adhesive material randomly distributed on the patterned surface and at least partially embedded in the adhesive layer. The discrete forms of non-adhesive material provide areas of no or minimal adhesion and provide the article with some level of repositionability or slidability. The adhesive surface comprising the non-adhesive forms may be patterned to provide an adhesive surface with a contact surface and recessed area or channels that provide the article with a route for air to flow out from under the construction. An article may be formed by providing a release liner, applying discrete forms of non-adhesive material to a surface of the release liner, at least partially embedding the non-adhesive forms, and embossing the release liner.

1 . A pressure sensitive label, comprising:
 an adhesive layer having a first and second side;   a plurality of discrete non-adhesive material forms randomly distributed, some of which are at least partially embedded in the adhesive layer;   a first release liner adhered to a first side of the adhesive layer;   a second release liner adhered to a second side of the adhesive layer;   wherein one of the first release liner or second release liner is used to transfer the label to a substrate.   
     
     
         2 . The pressure sensitive label of  claim 1 , wherein both the first and second side of the adhesive layer include areas of non-adhesive material. 
     
     
         3 . An adhesive article comprising:
 a substrate having first and second surface;   a printed layer that is applied to the surface of the substrate;   a cover layer provided over the printed layer;   an adhesive layer applied to the second surface of the substrate;   a plurality of discrete non-adhesive material forms randomly distributed, some of which are partially embedded in the adhesive layer; and   a release liner covering the adhesive layer and the plurality of discrete non-adhesive material forms; and   wherein the plurality of discrete non-adhesive material forms provide air egress in the adhesive layer.   
     
     
         4 . The adhesive article of  claim 3 , wherein the release liner has a textured finish. 
     
     
         5 . The adhesive article of  claim 3 , wherein the release liner has a patterned finish. 
     
     
         6 . A method of making an adhesive article, the method comprising:
 providing a release liner having a release surface and a back surface;   applying a plurality of non-adhesive forms to the release surface of the release liner such that the nonadhesive forms are distributed on the release surface in a non-regular arrangement;   at least partially embedding one or more of the non-adhesive forms into the release liner release surface wherein the embedding pressure;   embossing the release liner to provide an embossed pattern using; and   applying an adhesive layer having a front surface and a back surface onto the release surface of the release liner, wherein the front surface of the adhesive layer is adhered to the release surface of the release liner.   
     
     
         7 . A method as recited in  claim 6 , wherein the embossing is accomplished at a pressure in the range of about 25 to about 150 pounds per square inch and a temperature of about 45° F. to about 300° F. 
     
     
         8 . The method of  claim 6 , wherein the release liner is embossed by one of pressure rollers, a platen or a printing plate. 
     
     
         9 . A method of making a release liner for an adhesive article comprising the steps of:
 providing a moving web;   spraying discrete quantities of non-adhesive material forms to the web;   drying the non-adhesive material forms;   heating the web with the non-adhesive material forms;   embedding at least a portion of the non-adhesive material forms into the web; and   embossing the web with the embedded non-adhesive material.   
     
     
         10 . The method as recited in  claim 9 , wherein the steps of embedding and embossing are carried out substantially simultaneously.