Fabric comprising double networks of loops and a method of making it

Abstract

A looped knitted fabric including a foundation having interlaced chain-stitch threads or wales and connecting threads without a weft, and a first network of loops knitted in the foundation, each having two feet ( 3 ) knitted in the foundation, two first strands extending from the first feet ( 3 ) and a first crest ( 4 ) connecting the two first strands, each first crest ( 4 ) being on a given side of the two first feet ( 3 ) in the case of all the first loops, it includes a second network of loops knitted in the foundation, each having two second feet ( 3′ ) knitted in the foundation, two second strands extending from the two second feet, and a second crest ( 4′ ) connecting the two second strands, each second crest ( 4′ ) being on the side opposite the said side of the two second feet ( 3′ ) in the case of all the second loops, and each second foot ( 3′ ) lying on the imaginary line connecting two first feet ( 3 ) of a first loop, between and preferably half-way between the two first feet.

1 . A looped knitted fabric comprising: 
 a foundation comprising interlaced chain-stitch threads or wales and connecting threads without a weft, and    a first network of loops knitted in the foundation, each comprising two feet ( 3 ) knitted in the foundation, two first strands extending from the first feet ( 3 ), and a first crest ( 4 ) connecting the two first strands, each first crest ( 4 ) being on a given side of the two first feet ( 3 ) in the case of all the first loops, 
 Wherein it comprises a second network of loops knitted in the foundation, each comprising two second feet ( 3 ′) knitted in the foundation, two second strands extending from the two second feet, and a second crest ( 4 ′) connecting the two second strands, each second crest ( 4 ′) being on the side opposite the said side of the two second feet ( 3 ′) in the case of all the second loops, and each second foot ( 3 ′) lying on the imaginary line connecting two first feet ( 3 ) of a first loop, between and preferably half-way between the two first feet.  
   
     
     
         2 . A fabric according to  claim 1 , wherein 
 each first crest ( 4 ) of a first loop is interlaced in a second crest ( 4 ′) of a second loop.    
     
     
         3 . A fabric according to  claim 1   wherein the feet of the first and second loops are formed along the wales.    
     
     
         4 . A fabric according to  claim 1 , 
 wherein the fabric has a weight between 15 g/m 2  and 150 g/m 2 , inter alia between 15 g/m 2  and 40 g/m 2 , in the case of a thread diameter between 17 and 120 decitex, inter alia between 22 and 70 decitex.    
     
     
         5 . A method of producing a fabric according to 
   claim 1 , comprising steps consisting in using three guide bars, a first for forming the chain stitches in co-operation with some needles, a second for forming weft connections with the chain stitch-forming needles, and a third for alternately forming meshes (the feet of the loops) on the chain stitch-forming needles in one row and loops on the needles between the said chain stitch-forming needles of the chain stitch-forming needles in a following row, wherein at least two rows of needles are provided between two rows of chain stitch-forming needles and the third bar forms at least two networks of loops between two consecutive rows of chain stitch-forming needles.    
     
     
         6 . A method according to  claim 5 , wherein 
 a 10-23 weave is used for the third bar.    
     
     
         7 . A method according to  claim 6 , wherein 
 a 10-45 weave is used for the third bar.    
     
     
         8 . A laminated assembly comprising a fabric according to  claim 1  fixed to a support, inter alia by pasting.  
     
     
         9 . A laminated assembly according to  claim 8 , 
 wherein the support is a pilch.    
     
     
         10 . A pilch comprising a self-gripping female part ( 6 ) fixed to a hooked male part ( 7 ), the self-gripping female part ( 6 ) comprising a fabric according to claim  1 .