Composite yarn, method for obtaining same and resulting textile structure

Abstract

The invention concerns a composite yarn consisting of a continuous yarn, obtained by spinning fibers made of organic or inorganic material or natural fibers, and a polymer material. The invention is characterized in that the consecutive fibers said yarn are uniformly distributed in said polymer material such that each of said fibers is coated by said polymer material. The invention also concerns a method for making such a composite yarn and a textile structure obtainable from at least a composite yarn of the invention.

1 . A composite yarn consisting of a continuous yarn, obtained by spinning fibers made of an organic or inorganic material or natural fibers, and of a polymer material, characterized in that the constituent fibers of said continuous yarn are uniformly distributed within said polymer material in such a way that each of said fibers is coated by said polymer material.  
     
     
         2 . A composite yarn that can be obtained by a process for coating with a liquid monomer or polymer preparation comprising a polymer material, characterized in that it comprises a core consisting of a composite yarn as claimed in  claim 1 , and in that the material formed around the core and the constituent polymer material of the core are of the same nature.  
     
     
         3 . A fire-retarded composite yarn that can be obtained by a process for coating with a liquid monomer or polymer preparation comprising a polymer material and a fire-retarding filler, characterized in that it comprises a core consisting of a composite yarn as claimed in  claim 1  and in that the material formed around the core and the constituent polymer material of the core are of the same nature.  
     
     
         4 . The composite yarn as claimed in  claim 1 , characterized in that the inorganic or organic material constituting the fibers of the yarn is chosen from a group consisting of polyester, glass or silica.  
     
     
         5 . The composite yarn as claimed in  claim 1  characterized in that the polymer material is chosen from chlorinated polymers.  
     
     
         6 . The composite yarn as claimed in  claim 5 , characterized in that the chlorinated polymer material is chosen from the group consisting of polyvinyl chloride, superchlorinated PVCs, polyvinylidene chlorides and chlorinated polyolefins.  
     
     
         7 . The composite yarn as claimed in  claim 1  characterized in that the polymer material is chosen from organopolysiloxanes.  
     
     
         8 . The composite yarn as claimed in  claim 1  characterized in that the polymer material is chosen from polyurethanes.  
     
     
         9 . The composite yarn as claimed in  claim 3 , characterized in that the fire-retarding filler is chosen from the group consisting of zinc borate, aluminum hydroxide, antimony trioxide and zinc hydroxystannate.  
     
     
         10 . A process for manufacturing a composite yarn, characterized in that a continuous yarn, obtained by spinning fibers made of an organic or inorganic material, is subjected to a process for mechanically opening the yarn that allows said fibers to be separated, simultaneously with or prior to its coating by a polymer material.  
     
     
         11 . A process for manufacturing a composite yarn, characterized in that a continuous yarn, obtained by spinning fibers made of an organic or inorganic material, is subjected to a process for mechanically opening the yarn that allows said fibers to be separated, prior to a primary coating with a liquid monomer or polymer preparation, and in that the composite yarn obtained is subjected to a second coating with a liquid monomer or polymer preparation.  
     
     
         12 . A process for manufacturing a fire-retarded composite yarn, characterized in that a continuous yarn, obtained by spinning fibers made of an organic or inorganic material, is subjected to a process for mechanically opening the yarn that allows said fibers to be separated, prior to a primary coating with a liquid monomer or polymer preparation that does not contain a fire-retarding filler, and in that the composite yarn obtained is subjected to a second coating with a liquid monomer or polymer preparation containing a fire-retarding filler.  
     
     
         13 . The process as claimed in  claim 11 , characterized in that the monomer or polymer of the second coating is of the same nature as the monomer or polymer of the first coating.  
     
     
         14 . A textile structure, for example a fabric, characterized in that it can be obtained from at least one composite yarn as claimed in  claim 1.