Articles having anti-blocking surface using flock alternative

Abstract

An article has a finished fabric with two finished surfaces, and a treatment on at least one of the finished surfaces, which is a dry non-foamed aqueous composition as a flock substitute at 0.5-15 g/m 2 . It has an anti-blocking characteristic and masks any tacky feel of the finished fabric on the treated surfaces. The dry non-foamed aqueous composition includes: (i) hollow glass particles of 5-100 μm average particle size in an amount of 10-99 weight %, which hollow glass particles have an impact strength of greater than 50 MPa; (ii) a water-soluble or water-dispersible film-forming organic polymeric binder with a T g of less than 25° C.; (iii) a crosslinking agent if needed; and (iv) porous particles in an amount of less than 0.01 weight %. The weight ratio of the (i) hollow glass particles to the (ii) water-soluble or water-dispersible film-forming organic polymeric binder is from 1:5 to and including 10:1.

1 . An article consisting of:
 a finished fabric having two finished surfaces, and   a treatment on at least one of the two finished surfaces in the form of a dry non-foamed aqueous composition disposed on at least one of the two finished surfaces as a flock substitute at a dry coverage of at least 0.5 g/m 2  and up to and including 15 g/m 2 , and having an anti-blocking characteristic and masking any tacky feel of the finished fabric on the treated at least one of the two finished surfaces, the dry non-foamed aqueous composition comprising:   (i) hollow glass particles having an average particle size of at least 5 μm and up to and including 100 μm, that are present in an amount of at least 10 weight % and up to and including 99 weight %, based on the total weight of the dry non-foamed aqueous composition, the hollow glass particles having an impact strength of greater than 50 MPa;   (ii) a water-soluble or water-dispersible film-forming organic polymeric binder that has a glass transition temperature of less than 25° C.;   (iii) a crosslinking agent if it is needed to crosslink the (ii) water-soluble or water-dispersible film-forming organic polymeric binder; and   (iv) porous particles that are present in an amount of less than 0.01 weight %, if at all, based on the total weight of the dry non-foamed aqueous composition,   wherein the weight ratio of the (i) hollow glass particles to the (ii) water-soluble or water-dispersible film-forming organic polymeric binder is from 1:5 to and including 10:1.   
     
     
         2 . The article of  claim 1 , wherein the (i) hollow glass particles are present in the dry non-foamed aqueous composition in an amount of at least 25 weight % and up to and including 80 weight %, based on the total weight of the dry non-foamed aqueous composition. 
     
     
         3 . The article of  claim 1 , wherein the dry non-foamed aqueous composition further comprises one or more of a defoaming agent, an anti-foaming agent, a lubricant, a flame retardant, and a tinting agent, all of which are different from all of the components (i), (ii), (iii), and (iv). 
     
     
         4 . The article of  claim 1 , wherein the (i) hollow glass particles have an average particle size of at least 20 μm and up to and including 60 μm. 
     
     
         5 . The article of  claim 1 , wherein the (i) hollow glass particles in the dry non-foamed aqueous composition have a density of at least 0.1 g/cm 3  and up to and including 0.8 g/cm 3 . 
     
     
         6 . The article of  claim 1 , wherein the (iv) porous particles are completely absent from the dry non-foamed aqueous composition. 
     
     
         7 . The article of  claim 1 , wherein the (i) hollow glass particles are present in the dry non-foamed aqueous composition in relation to the (ii) water-soluble or water-dispersible film-forming organic polymeric binder at a weight ratio of from 1:3 to and including 8:1. 
     
     
         8 . The article of  claim 1 , wherein the (i) hollow glass particles are present in the dry non-foamed aqueous composition in relation to the (ii) water-soluble or water-dispersible film-forming organic polymeric binder at a weight ratio of from 1:1 to and including 6:1. 
     
     
         9 . The article of  claim 1 , wherein the (ii) water-soluble or water-dispersible film-forming organic polymeric binder is a poly(vinyl alcohol), a partially hydrolyzed poly(vinyl acetate), a cellulosic polymer, a poly(ethylene oxide), a poly(vinyl pyrrolidone), an acrylic polymer, an acrylamide polymer, a fluorinated polymer, a chlorinated polymer, a polymer containing siloxane moieties, gelatin or a gelatin derivative, a polysaccharide, a polyurethane, a polyester ionomer, or a combination of two or more of these recited polymeric materials. 
     
     
         10 . The article of  claim 1 , wherein the (ii) water-soluble or water-dispersible film-forming organic polymeric binder is an acrylic polymer, a partially hydrolyzed poly(vinyl acetate), a chlorinated polymer, and a combination of two or more of these recited polymeric materials. 
     
     
         11 . The article of  claim 1 , wherein the (ii) water-soluble or water-dispersible film-forming organic polymeric binder is an acrylic polymer derived at least from one or more (meth)acrylates and N-methylol (meth)acrylamide. 
     
     
         12 . The article of  claim 1 , wherein the non-foamed aqueous composition further comprises a coating aid. 
     
     
         13 . The article of  claim 1 , wherein the dry non-foamed aqueous composition has a density greater than 0.9 g/cm 3 . 
     
     
         14 . The article of  claim 1 , wherein the dry non-foamed aqueous composition further comprises a thickener. 
     
     
         15 . The article of  claim 1 , wherein the fabric is a woven fabric, optionally comprising one or more flame retardants. 
     
     
         16 . The article of  claim 1 , wherein the finished fabric comprises woven fiberglass. 
     
     
         17 . The article of  claim 1 , further comprising a design either on the dry non-foamed aqueous composition or on a finished surface of the finished fabric having no dry non-foamed aqueous composition, or on both the dry non-foamed aqueous composition and the finished surface of the finished fabric having no dry non-foamed aqueous composition. 
     
     
         18 . The article of  claim 1 , further comprising an adhesive composition that is disposed on only one of the two finished surfaces of the finished fabric and underneath the dry non-foamed aqueous composition. 
     
     
         19 . The article of  claim 1 , further comprising an adhesive composition disposed over the dry non-foamed aqueous composition. 
     
     
         20 . The article of  claim 1 , wherein the dry non-foamed aqueous composition is disposed on only one of the two finished surfaces of the finished fabric, and the other finished surface is in contact with a secondary substrate.