Film for wrapping, methods of making and using

Abstract

One embodiment of a wrapping film comprises a polymer film having, on at least one surface thereof, at least one sealing area comprising at least one varnished area; and a plurality of individual unvarnished areas; wherein, within the sealing area, the area ratio of the unvarnished areas to the varnished area (PV:V) is ≦1; and wherein, within the sealing area, the largest individual unvarnished area is ≦30 mm 2 . Other embodiments are described.

1 . A wrapping film, comprising:
 a polymer film having, on at least one surface thereof, at least one sealing area comprising:
 at least one varnished area; and 
 a plurality of individual unvarnished areas; 
   wherein, within the sealing area, the area ratio of the unvarnished areas to the varnished area (PV:V) is ≦1;   and wherein, within the sealing area, the largest individual unvarnished area is ≦30 mm 2 .   
     
     
         2 . The film of  claim 1 , wherein the wrapping film is a ream wrap. 
     
     
         3 . A method for making a wrapping film, comprising:
 forming, on at least one surface of a polymer film, a sealing area comprising:
 at least one varnished area; and 
 a plurality of individual unvarnished areas; 
   wherein, within the sealing area, the area ratio of the unvarnished areas to the varnished area (PV:V) is ≦1;   and wherein, within the sealing area, the largest individual unvarnished area is ≦30 mm 2 .   
     
     
         4 . The method of  claim 3 , wherein the wrapping film is a ream wrap. 
     
     
         5 . A method for making a wrapping film, comprising:
 forming, on at least one surface of a polymer film, a sealing area comprising:
 at least one varnished area; and 
 a plurality of individual unvarnished areas; 
   and contacting at least a portion of the polymer film with the ream of paper;   wherein, within the sealing area, the area ratio of the unvarnished areas to the varnished area (PV:V) is ≦1;   and wherein, within the sealing area, the largest individual unvarnished area is ≦30 mm 2 .   
     
     
         6 . The method of  claim 5 , wherein the wrapping film is a ream wrap. 
     
     
         7 . A method for wrapping an article, comprising:
 forming, on at least one surface of a polymer film, a sealing area comprising:
 at least one varnished area; and 
 a plurality of individual unvarnished areas; 
   contacting the surface with a second surface of the polymer film; and   applying energy to at least one of the unvarnished areas to form a peelable bond between the surfaces within the sealing area;   wherein, within the sealing area, the area ratio of the unvarnished areas to the varnished area (PV:V) is ≦1;   and wherein, within the sealing area, the largest individual unvarnished area is ≦30 mm 2 .   
     
     
         8 . The method of  claim 7 , wherein the article is a ream of paper. 
     
     
         9 . A wrapped article, comprising:
 an article wrapped with a polymer film having, on at least one surface thereof, at least one peelable bond comprising:
 at least one varnished, unbonded area; and 
 a plurality of individual bonded areas; 
   wherein, within the peelable bond, the area ratio of the bonded areas to the varnished, unbonded area (BA:VUB) is ≦1;   and wherein, within the peelable bond, the largest individual bonded area is ≦30 mm 2 .   
     
     
         10 . The article of  claim 9 , wherein the article is a ream of paper. 
     
     
         11 . A wrapping film, comprising:
 a polymer film having first and second surfaces and, on the first surface, at least one sealing area, comprising:
 a coating comprising varnish and microspheres dispersed in the varnish. 
   
     
     
         12 . The film of  claim 11 , wherein the wrapping film is a ream wrap. 
     
     
         13 . A method for making a wrapping film, comprising:
 forming, on at least one surface of a polymer film, a sealing area comprising:
 a coating comprising varnish and microspheres dispersed in the varnish. 
   
     
     
         14 . The method of  claim 13 , wherein the wrapping film is a ream wrap. 
     
     
         15 . A method for wrapping an article, comprising:
 contacting an article with a polymer film;   contacting a first surface of the polymer film with a second surface of the polymer film; and   applying energy to at least a portion of the surfaces to form a peelable bond between the surfaces, the peelable bond comprising:
 a coating comprising varnish and microspheres dispersed in the varnish, the microspheres bonding the first and second surfaces together. 
   
     
     
         16 . The method of  claim 15 , wherein the article is a ream of paper. 
     
     
         17 . A wrapped article, comprising:
 an article wrapped with a polymer film, the polymer film comprising:
 first and second surfaces; and 
 a peelable bond between the first and second surfaces; 
   wherein the peelable bond comprises:
 a coating comprising varnish and microspheres dispersed in the varnish, the microspheres bonding the first and second surfaces together. 
   
     
     
         18 . The article of  claim 17 , wherein the article is a ream of paper. 
     
     
         19 . A method for wrapping an article, comprising:
 contacting an article with a polymer film;   contacting a first surface of the polymer film with a second surface of the polymer film; and   applying energy to at least a portion of the surfaces to form a peelable bond between the surfaces, the peelable bond comprising:
 an unbonded area; and 
 a plurality of individual bonded areas in the unbonded area; 
   wherein, within the peelable bond, the area ratio of the bonded areas to the unbonded area (BA:UB) is ≦1;   and wherein, within the peelable bond, the largest individual bonded area is ≦30 mm 2 .   
     
     
         20 . The method of  claim 19 , wherein the article is a ream of paper. 
     
     
         21 . A wrapped article, comprising:
 an article wrapped with a polymer film having, on at least one surface thereof, at least one peelable bond comprising:
 at least one unbonded area; and 
 a plurality of individual bonded areas; 
   wherein, within the peelable bond, the area ratio of the bonded areas to the unbonded area (BA:UB) is ≦1;   and wherein, within the peelable bond, the largest individual bonded area is ≦30 mm 2 .   
     
     
         22 . The article of  claim 21 , wherein the article is a ream of paper.