NEW STAIN RESISTANT BARRIER FABRIC
The instant invention relates to a new liquid repellent and stain resistant barrier fabric comprising a fabric substrate having a face side and an underside with spaced-apart indentations on the underside of the fabric substrate; a primary treat composition covering at least the face side of the fabric substrate; a perforated polymeric latex overlaying the underside of the fabric substrate, wherein the perforations align with the spaced-apart indentations; a polymeric adhesive layer covering the perforated latex; and a polymeric barrier film overlaying the adhesive layer. Such liquid repellent and stain resistant barrier fabrics are suitable in home furnishing and commercial applications.
1 . A barrier fabric comprising:
a fabric substrate having a face side and an underside with spaced-apart indentations on the underside of said fabric substrate;
a primary treatment composition covering at least the face side of said fabric substrate;
a perforated polymeric latex overlaying the underside of said fabric substrate,
wherein said perforations align with said spaced-apart indentations;
a polymeric adhesive layer covering said perforated latex; and
a polymeric barrier film overlying said adhesive layer.
2 . The barrier fabric of claim 1 , wherein the primary treatment composition comprises a fluorochemical compound and a crosslinkable resin.
3 . The barrier fabric of claim 2 , wherein the primary treatment composition further comprises a stain resistant agent.
4 . The barrier fabric of claim 2 or claim 3 , wherein the primary treatment composition further comprises an antimicrobial agent.
5 . The barrier fabric of claim 1 , wherein the polymeric latex comprises a polyurethane latex.
6 . The barrier fabric of claim 1 , wherein the polymeric latex comprises an acrylic latex.
7 . The barrier fabric of claim 1 , wherein the polymeric adhesive layer is a polyester copolymer adhesive layer.
8 . The barrier fabric of claim 1 , wherein the polymeric barrier film comprises a polyurethane film.
9 . The barrier fabric of claim 1 , wherein the polymeric barrier film comprises a polyester polyurethane film.
10 . The barrier fabric of claim 1 , wherein the polymeric barrier film comprises a polyether polyurethane film.
11 . The barrier fabric of claim 2 , wherein the fluorochemical comprises at least one of a fluorocarbonylimino biuret, a fluroester, a fluoroester carbamate, and a fluoropolymer, and mixtures thereof.
12 . The barrier fabric of claim 2 , wherein the crosslinkable resin is a non-formaldehyde resin.
13 . The barrier fabric of claim 3 , wherein the stain resistant agent comprises at least one of a sulfonated phenol-aldehyde condensation product, a sulfonated naphthol-aldehyde condensation product, a polymethacrylic acid polymer, an acrylic acid polymer, a copolymers of acrylic acid or methacrylic acid with ethylenically unsaturated comonomers, and a hydrolyzed maleic anhydride copolymer with an ethylenically unsaturated comonomer.
14 . A method for preparation of a barrier fabric, the method comprising:
a) providing a fabric substrate having a face side and an underside;
b) covering at least the face side of said fabric with a primary treatment composition;
c) overlaying a polymeric latex in the underside of said fabric substrate;
d) perforating the overlaid underside of said fabric substrate;
e) covering the perforated underside with a polymeric adhesive layer; and
f) overlaying the adhesive layer with a polymeric film.
15 . The method of claim 14 , wherein the primary treatment composition comprises a fluorochemical compound and a crosslinkable resin.
16 . The method of claim 14 , wherein the primary treatment composition further comprises a stain resistant agent.
17 . The method of claim 15 or claim 16 , wherein the primary treatment composition further comprises an antimicrobial agent.
19 . The method of claim 14 , wherein the polymeric latex comprises a polyurethane latex.
20 . The method of claim 14 , wherein the polymeric latex comprises an acrylic latex.
21 . The method of claim 14 , wherein the polymeric barrier film comprises a polyurethane film.
22 . The method of claim 14 , wherein the polymeric barrier film comprises a polyester polyurethane film
23 . The method of claim 14 , wherein the polymeric barrier film comprises a polyether polyurethane film.
24 . The method of claim 14 , wherein the fluorochemical comprises at least one of a fluorocarbobyllimino biuret, a fluoroester, a fluoroester carbmate, and a fluoropolymer, and mixtures thereof.
25 . The method of claim 11 , wherein the crosslinkable resin is a non-formaldehyde resin.
26 . The method of claim 14 , wherein wherein the stain resistant agent comprises at least one of a sulfonated phenol-aldehyde condensation product, a sulfonated naphthol-aldehyde condensation product, a polymethacrylic acid polymer, an acrylic acid polymer, a copolymers of acrylic acid or methacrylic acid with ethylenically unsaturated comonomers, and a hydrolyzed maleic anhydride copolymer with an ethylenically unsaturated comonomer.