Fabric comprising a transparent, fire-resistant coating

Abstract

The invention relates to a textile comprising a woven or nonwoven textile backing and a flame retardant coating, characterized in that the flame retardant coating comprises nanoparticles of a mineral flame retardant selected from the group consisting of aluminum monohydroxide (AlOOH), aluminum trihydroxide (Al(OH) 3 ) and a mixture thereof and poly(vinyl alcohol).

1 : A textile, comprising a woven or nonwoven textile backing and a flame retardant coating, wherein the flame retardant coating comprises:
 (i) nanoparticles of a mineral flame retardant selected from the group consisting of aluminum monohydroxide (AlOOH), aluminum trihydroxide (Al(OH) 3 ) and a mixture thereof; and   (ii) a poly(vinyl alcohol).   
     
     
         2 : The textile of  claim 1 , wherein the flame retardant coating comprises, by weight relative to a total weight of (i) and (ii):
 (i) 50% to 90% of the aluminum monohydroxide, the aluminum trihydroxide nanoparticles, or both; and   (ii) 10% to 50% of the poly(vinyl alcohol).   
     
     
         3 : The textile of  claim 1 , wherein the flame retardant coating has a grammage of between 25 and 500 g/m 2 . 
     
     
         4 : The textile of  claim 1 , wherein at least 95% of the mineral flame retardant nanoparticles have an equivalent diameter of greater than 20 nm and less than 750 nm. 
     
     
         5 : The textile of  claim 1 , wherein the textile backing comprises glass yarns representing at least 30% by weight of the textile backing. 
     
     
         6 : The textile of  claim 1 , wherein the textile is a luminous fabric comprising two faces, at least one of which is adapted to function as a lighting surface. 
     
     
         7 : The textile of  claim 6 , wherein the textile comprises a woven textile backing comprising warp yarns and weft yarns selected from the group consisting of group consisting of a binding yarn and an optical fiber capable of emitting light sideways. 
     
     
         8 : The textile of  claim 6 , wherein the textile comprises a binding yarn comprising a glass yarn representing at least 50% by weight of a total weight of the binding yarn forming the woven textile backing. 
     
     
         9 : The textile of  claim 6 , wherein the flame retardant coating is applied on a side of a face adapted to function as a lighting surface. 
     
     
         10 : The textile of  claim 1 , further comprising at least one additional coating selected from the group consisting of a reflective coating, a structuring coating, a coating having a good cleanability and a diffusing coating. 
     
     
         11 : A process for manufacturing the textile of  claim 1 , the process comprising:
 depositing an aqueous flame retardant composition comprising
 (i) the nanoparticles of the mineral flame retardant selected from the group consisting of aluminum monohydroxide (AlOOH), aluminum trihydroxide (Al(OH) 3 ) and a mixture thereof, and 
 (ii) the poly(vinyl alcohol), 
   
       on a surface of the textile backing; and
 drying in order to obtain the flame retardant coating. 
 
     
     
         12 : The process of  claim 11 , wherein the aqueous flame retardant composition comprises, by weight relative to a total weight of solid material in the composition:
 (i) 50% to 90% of the aluminum monohydroxide, the aluminum trihydroxide nanoparticles, or both; and   (ii) 10% to 50% of the poly(vinyl alcohol).   
     
     
         13 : The process of  claim 11 , wherein the aqueous flame retardant composition has a viscosity of less than 10 Pa·s, which viscosity corresponds to a Brookfield viscosity. 
     
     
         14 : The process of  claim 11 , wherein the aqueous flame retardant composition has a pH of between 2 and 6. 
     
     
         15 : The process of  claim 11 , wherein the aqueous flame retardant composition comprises, by weight relative to a total weight of the aqueous flame retardant composition:
 from 5% to 40% of the aluminum monohydroxide, the and/or aluminum trihydroxide nanoparticles, or both; and   from 2% to 15% of the poly(vinyl alcohol).