Masking article for producing precise paint lines and method of improving paint line performance of masking articles

Abstract

An adhesive masking article for shielding a protected work surface from a coating applied to a surface adjacent the protected work surface includes a backing layer having first and second opposed major surfaces, and at least one edge, an adhesive on at least a portion of at least one of the first and second backing layer opposed major surfaces, and a barrier inducing treatment on at least an edge surface of the masking article to contact the coating when the coating contacts the edge of the backing layer, thereby causing a barrier to form along the edge of the masking article that impedes the migration of the coating past the edge of the masking article beneath the masking article.

1 . An adhesive masking article for shielding a protected work surface from a coating applied to a surface adjacent the protected work surface, the masking article comprising:
 (a) a backing layer having first and second opposed major surfaces, and at least one edge;   (b) an adhesive on at least a portion of at least one of the first and second backing layer opposed major surfaces; and   (c) a water soluble cationic barrier inducing compound present on at least the edge of the masking article to contact the coating when the coating comes into contact with the edge of the backing layer.   
     
     
         2 . A masking article as defined in  claim 1 , wherein the barrier inducing compound has a solubility in water of at least about 0.1 grams/100 grams of deionized water at 23° C. 
     
     
         3 . A masking article as defined in  claim 1 , wherein the barrier inducing compound comprises a cationic material comprising a compound having at least one of 2 amine groups, a metal cation having a valency of at least 2, and a combination thereof. 
     
     
         4 . A masking article as defined in  claim 3 , wherein the cationic material has an amine equivalent weight of at least about 40 g/equivalent, and no greater than about 1000 g/equivalent. 
     
     
         5 . A masking article as defined in  claim 3 , wherein the cationic material comprises a polyvalent metal cation. 
     
     
         6 . A masking article as defined in  claim 1 , wherein the barrier inducing compound comprises an organic compound. 
     
     
         7 . A masking article as defined in  claim 1 , wherein the barrier inducing compound comprises at least one of a cationic polymer and a cationic oligomer. 
     
     
         8 . A masking article as defined in  claim 7 , wherein the cationic polymer comprises an organic polymer. 
     
     
         9 . A masking article as defined in  claim 1 , wherein the barrier inducing treatment comprises an inorganic compound. 
     
     
         10 . A masking article as defined in  claim 9 , wherein the inorganic compound comprises a polyvalent metal compound. 
     
     
         11 . A masking article as defined in  claim 10 , wherein the polyvalent metal compound comprises a metal salt. 
     
     
         12 . A masking article as defined in  claim 11 , wherein the metal salt comprises a soluble salt of aluminum, iron, zirconium, chromium, cobalt, titanium, magnesium, zinc, calcium, copper, manganese, strontium, yttrium, lanthanum, polyaluminum halide, basic aluminum nitrate, hydrolyzed aluminum, aluminum sulfate, zirconyl salts, titanyl salts, and combinations thereof. 
     
     
         13 . An adhesive masking article for shielding a protected work surface from a coating applied to a surface adjacent the protected work surface, the masking article comprising:
 (a) a backing layer having first and second opposed major surfaces, and at least one edge;   (b) an adhesive on at least a portion of at least one of the first and second backing layer opposed major surfaces; and   (c) a polycationic barrier inducing treatment present on at least the edge of the masking article to contact the coating when the coating comes into contact with the edge of the backing layer.   
     
     
         14 . A masking article as defined in  claim 13 , wherein the polycationic barrier inducing treatment comprises a crosslinked organic polycationic polymer derived from vinyl monomers. 
     
     
         15 . A masking article as defined in  claim 13 , wherein the polycationic polymer comprises at least one of Polyquaternium-6 and Polyquaternium-37. 
     
     
         16 . A masking article as defined in  claim 13 , wherein the polycationic polymer comprises at least one of a polyquaternary amine polymer and a polyfunctional protonated primary, secondary, or tertiary amine, or a combination thereof. 
     
     
         17 . A masking article as defined in  claim 13 , wherein the polycationic polymer comprises at least one of poly(diallyldimethylammonium salt), protonated or quaternized homo- or copolymer of an amine functional acrylic monomer, and protonated polyethylene imine. 
     
     
         18 . A masking article as defined in  claim 17 , wherein the amine functional acrylic monomer comprises at least one of acrylates, methacrylates, acrylamides, and methacrylamides. 
     
     
         19 . A masking article as defined in  claim 17 , wherein the acrylic monomer is selected from diallyldimethylammonium salt, methacryloyloxyalkyl trialkyl ammonium salt, acryloyloxyalkyl trialkyl ammonium salt, quaternized dialkylaminoalkylacrylamidine salt, trialkylaminoalkyl acrylate and methacrylate salts, dialkyldiallyl ammonium salts (e.g. dimethyldiallylammonium salts), acrylamidoalkyltrialkyl salts, methacrylamidoalkyltrialkyl salts, and alkyl imidazolinium salts. 
     
     
         20 . A barrier inducing treatment formulation for use in connection with a masking article comprising an organic cationic barrier inducing compound.