Canvas for breaking down light

Abstract

The present invention relates to a canvas including a substrate and a layer for breaking down light characterized in that said layer includes mother-of-pearl or a substance with substantially identical light diffraction or iridescence properties, from the UV range to the IR range, to mother-of-pearl.

1 . A canvas comprising a support and a layer for breaking down light, the layer comprising one of a mother-of-pearl and a substance having light diffraction or iridescence properties, from the ultraviolet (UV) range to that of infrared (IR), substantially identical to that of mother-of-pearl. 
     
     
         2 . The canvas according to  claim 1 , wherein the layer is incorporated in the mass of the support. 
     
     
         3 . The canvas according to  claim 1 , wherein the support is a non-woven. 
     
     
         4 . The canvas according to  claim 3 , wherein the non-woven is chosen from the group comprising non-wovens composed at least in part from mineral fibres, fibres of animal origin, vegetable fibres and chemical fibres. 
     
     
         5 . The canvas according to  claim 4 , wherein the non-woven is a non-woven linen. 
     
     
         6 . The canvas according to  claim 1 , wherein the layer for breaking down light is continuous. 
     
     
         7 . The canvas according to  claim 1 , further comprising a layer comprising at least one of metallic particles and particles with metallic reflections. 
     
     
         8 . The canvas according to  claim 1 , wherein the layer for breaking down light further comprises at least one of metallic particles and powder of stone to be whetted. 
     
     
         9 . A process for producing canvas according to  claim 1 , the process comprising: a step consisting of impregnating the support in a mother-of-pearl solution. 
     
     
         10 . The process according to  claim 9 , wherein the mother-of-pearl solution comprises from 10 to 20% mother-of-pearl. 
     
     
         11 . A method of use of the canvas according to  claim 1  for making products rejecting infrared, such as blind canvases, canvases for tents and clothing. 
     
     
         12 . The canvas according to  claim 3 , wherein the non-woven is composed at least in part from vegetable fibres.