Stretchable barrier wrap and method for manufacturing thereof

Abstract

A stretchable barrier wrap includes an extensible cellulosic substrate having a stretchability of at least 5% and an aqueous polyolefin dispersion barrier layer on the extensible cellulosic substrate.

What is claimed is: 
     
         1 . A stretchable barrier wrap, comprising:
 an extensible cellulosic substrate having a stretchability of at least 5%; and   an aqueous polyolefin dispersion barrier layer on the extensible cellulosic substrate.   
     
     
         2 . The stretchable barrier wrap of  claim 1 , wherein the extensible cellulosic substrate is an extensible paper substrate. 
     
     
         3 . The stretchable barrier wrap of  claim 1 , wherein the extensible cellulosic substrate has a caliper thickness in a range of 3 points to 10 points. 
     
     
         4 . The stretchable barrier wrap of  claim 1 , wherein the extensible cellulosic substrate has a stretchability of at least 6%. 
     
     
         5 . The stretchable barrier wrap of  claim 1 , wherein the extensible cellulosic substrate has a stretchability of at least 7%. 
     
     
         6 . The stretchable barrier wrap of  claim 1 , wherein the extensible cellulosic substrate has a stretchability of in a range of 5% to 12%. 
     
     
         7 . The stretchable barrier wrap of  claim 1 , wherein the extensible cellulosic substrate has a stretchability of in a range of 6% to 11%. 
     
     
         8 . The stretchable barrier wrap of  claim 1 , wherein the extensible cellulosic substrate has a stretchability of in a range of 7% to 10%. 
     
     
         9 . The stretchable barrier wrap of  claim 1 , wherein the extensible cellulosic substrate has a lignin content of at least 8%, by weight percent. 
     
     
         10 . The stretchable barrier wrap of  claim 1 , wherein the aqueous polyolefin dispersion barrier layer comprises a pigment. 
     
     
         11 . The stretchable barrier wrap of  claim 1 , wherein the aqueous polyolefin dispersion barrier layer comprises a clay pigment. 
     
     
         12 . The stretchable barrier wrap of  claim 1 , wherein the aqueous polyolefin dispersion barrier layer comprises a calcium carbonate pigment. 
     
     
         13 . The stretchable barrier wrap of  claim 1 , wherein the aqueous polyolefin dispersion barrier layer comprises a clay pigment in an amount of at least 50 percent by weight of the total pigment weight. 
     
     
         14 . The stretchable barrier wrap of  claim 1 , wherein the aqueous polyolefin dispersion barrier layer has a coat weight, on a dry basis, of at least 0.5 lb/3000 ft 2 . 
     
     
         15 . The stretchable barrier wrap of  claim 1 , further comprising a base coat between the aqueous polyolefin dispersion barrier layer and the first major side of the extensible cellulosic substrate. 
     
     
         16 . The stretchable barrier wrap of  claim 1 , further comprising a coating, barrier or non-barrier, on the second major side of the extensible cellulosic substrate. 
     
     
         17 . A method for manufacturing a stretchable barrier wrap, comprising:
 providing an extensible cellulosic substrate having a stretchability of at least 5%; and   coating an aqueous polyolefin dispersion barrier layer on the extensible cellulosic substrate.   
     
     
         18 . The method of  claim 17 , wherein the extensible cellulosic substrate has a stretchability of at least 6%. 
     
     
         19 . The method wrap of  claim 17 , wherein the aqueous polyolefin dispersion barrier layer comprises a pigment. 
     
     
         20 . The method of  claim 17 , wherein the aqueous polyolefin dispersion barrier layer has a coat weight, on a dry basis, of at least 0.5 lb/3000 ft 2 .