Composite yarn comprising at least two single elastic filaments and a plurality of inelastic elements

Abstract

A composite yarn (100) comprising at least two single elastic filaments (101) and plurality of inelastic elements (103), wherein: said inelastic elements (103) comprise a plurality of inelastic filaments and/or a bundle of inelastic filaments; said single elastic filaments (101) and said inelastic filaments (103) are connected to each other by intermingling.

1 . A composite yarn ( 100 ) comprising at least two single elastic filaments ( 101 ) and a plurality of inelastic elements ( 103 ), wherein:
 said plurality of inelastic elements ( 103 ) comprise a plurality of inelastic filaments and/or a bundle of inelastic filaments;   said at least two single elastic filaments ( 101 ) and said inelastic elements ( 103 ) are intermingled and said at least two single elastic filaments ( 101 ) are substantially independent of one another except at entanglement points;   said entanglement points comprise greater than 100 entanglement points per meter; and   said at least two single elastic filaments ( 101 ) have different draft ratios.   
     
     
         2 . The composite yarn ( 100 ) according to  claim 1 , wherein said at least two single elastic filaments comprise at least five single elastic filaments ( 01 ) and wherein each of said at least five single elastic filaments ( 101 ) has a different draft ratio. 
     
     
         3 . The composite yarn ( 100 ) according to  claim 2 , wherein said elastic filaments ( 101 ) are each drafted with a draft between 1.1 and 6.9. 
     
     
         4 . The composite yarn ( 100 ) according to  claim 3 , wherein the draft of said inelastic elements ( 103 ) is lower than 5. 
     
     
         5 . The composite yarn ( 100 ) according to  claim 2 , wherein the draft of said inelastic elements ( 103 ) is less than the draft of the elastic filaments ( 101 ). 
     
     
         6 . The composite yarn ( 100 ) according to  claim 2 , wherein a count of each of said inelastic elements ( 103 ) is less than a count of each of said single elastic filaments ( 101 ) and a percentage in weight of said plurality of inelastic elements ( 103 ) is greater than a percentage in weight of said at least five single elastic filaments ( 101 ). 
     
     
         7 . The composite yarn ( 100 ) according to  claim 1 , wherein said inelastic elements ( 103 ) comprise said plurality of inelastic filaments, and said at least two single elastic filaments ( 101 ) are not coalesced. 
     
     
         8 . The composite yarn ( 100 ) according to  claim 1 , wherein each of said inelastic elements ( 103 ) comprise at least one polyester filament and/or a polyamide filament. 
     
     
         9 . The composite yarn ( 100 ) according to  claim 1 , wherein said inelastic elements ( 103 ) are texturized. 
     
     
         10 . The composite yarn ( 100 ) according to  claim 1 , wherein said inelastic elements ( 103 ) comprise bi-component filaments and said single elastic filaments ( 101 ) have a count between 40 and 70 denier. 
     
     
         11 . The composite yarn ( 100 ) according to  claim 10 , wherein said inelastic elements ( 103 ) comprise one of PET/PTT, PBT/PTT and PET/PTMT. 
     
     
         12 . The composite yarn ( 100 ) according to  claim 1 , further comprising at least a bundle of elastic filaments intermingled with said inelastic elements ( 103 ). 
     
     
         13 . An article ( 300 ) comprising a fabric ( 200 ) comprising the composite yarn according to  claim 1 . 
     
     
         14 . A process for producing a composite yarn ( 100 ), said process comprising the steps of:
 providing a plurality of inelastic elements ( 103 ), said inelastic elements comprising a plurality of inelastic filaments and/or a bundle of inelastic filaments;   providing at least at least two separate single elastic filaments ( 101 );   intermingling said at least two separate single elastic filaments ( 101 ) and said inelastic elements ( 103 ); and   collecting the composite yarn ( 100 ) obtained via said intermingling step,   wherein said at least two separate single elastic filaments ( 101 ) are fed as individual filaments and therefore not coupled together prior to said intermingling and are substantially independent of one another except at said entanglement points after said intermingling, and   wherein said providing at least two separate single elastic filaments ( 101 ) comprises drafting said at least two separate single elastic filaments ( 101 ) such that said at least two separate single elastic filaments ( 101 ) have different draft ratios.   
     
     
         15 . The process according to  claim 14 , wherein said providing at least at least two separate single elastic filaments ( 101 ) comprises providing at least at least five separate single elastic filaments ( 101 ) and drafting said at least five separate single elastic filaments ( 101 ) such that each of said at least five separate single elastic filaments ( 101 ) has a different draft ratio. 
     
     
         16 . The process according to  claim 14 , wherein no further yarn or roving or sliver is added to the composite yarn ( 100 ) between said intermingling step and said collecting step. 
     
     
         17 . The process according to  claim 14 , further comprising a step of texturing the inelastic elements ( 103 ) and wherein said inelastic elements ( 103 ) are overfed during said intermingling step, at a percentage between 1.2% and 7.0%. 
     
     
         18 . The process according to  claim 15 , wherein said collecting the composite yarn ( 100 ) obtained via said intermingling step comprises the composite yarn ( 100 ) comprising a count of each of said inelastic filaments ( 103 ) being less than a count of each of said at least 5 separate elastic filaments ( 101 ), and a percentage in weight of said plurality of inelastic filaments ( 103 ) is greater than a percentage in weight of said at least five single elastic filaments ( 101 ) in said composite yarn ( 100 ). 
     
     
         19 . A composite yarn obtainable according to the process of  claim 14 . 
     
     
         20 . A composite yarn ( 100 ) comprising at least five single elastic filaments ( 101 ) and a plurality of inelastic elements ( 103 ), wherein:
 said inelastic elements ( 103 ) comprise a plurality of inelastic filaments and/or a bundle of inelastic filaments;   said at least five single elastic filaments ( 101 ) and said inelastic filaments ( 103 ) are intermingled and said at least five single elastic filaments ( 101 ) are substantially independent of one another except at entanglement points, wherein   said entanglement points comprise greater than 100 entanglement points per meter,   a count of each of said inelastic filaments ( 103 ) is less than a count of each of said single elastic filaments ( 101 ) and a percentage in weight of said plurality of inelastic filaments ( 103 ) is greater than a percentage in weight of said single elastic filaments ( 101 ) in said composite yarn ( 100 ), and   each of said at least five single elastic filaments ( 101 ) has a different draft ratio.