| 摘要 |
<p>A tufted nonwoven with improved stitch holding, a bonded nonwoven and methods for their manufacture are described. The tufted nonwoven with improved stitch holding comprises a face material which tufts a bonded nonwoven comprising a mixture of a plurality of bicomponent filaments 1 with a plurality of bicomponent filaments 2 wherein ialpha) at least bicomponent filaments 1 exhibit a core/sheath geometry wherein component 11 represents the core and component 12 represents the sheath or ibeta) at least bicomponent filaments 1 exhibit a side by side geometry wherein component 11 represents side 1 and component 12 represents side 2 or igamma) at least bicomponent filaments 1 exhibit an islands in the sea geometry wherein component 11 represents the islands and component 12 represents the sea ii) the component 11 exhibits a melting temperature Tm(11) and the component 22 exhibits a melting temperature Tm(22), iii) the component 12 exhibits a melting temperature Tm(12), the component 21 exhibits a melting temperature Tm(21) and Tm(12) is higher than Tm(21) and iv) the melting temperatures of both component 11 and 22 and the melting temperatures of components 12 and 21 obey to the relation both Tm(11) and Tm(22)>Tm(12)>Tm(21) an wherein the face material is bonded to bicomponent filaments 1 and 2 by a solidified melt of components 12 and 21.</p> |
