Meltspun multicomponent thermoplastic continuous filaments,...

Details Meltspun multicomponent thermoplastic continuous filaments,... Meltspun multicomponent thermoplastic continuous filaments,...

D - Textiles, Paper

01

F

D01F 8/04 (2006.01) D04H 3/02 (2006.01) D04H 3/16 (2006.01) D04H 3/14 (2006.01)

Patent

CA 2261337

Multicomponent thermoplastic continuous filaments are provided, including hollow core multicomponent filaments. The filaments are at least partially splittable into smaller filaments in the absence of mechanical treatment or application of high pressure water jets. The surface energy of the components can be controlled to control separation of the multicomponent filaments. Sub- denier and micro-denier filaments of low orientation can be produced from relatively high molecular weight polymers to produce nonwovens of surprising strength, barrier, and cover.

L'invention a trait à des fils continus thermoplastiques composites, des fils composites à coeur creux notamment. Ces fils peuvent, du moins partiellement, se scinder en fils plus petits sans traitement mécanique ni application de jets d'eau sous des pressions élevées. Il est possible d'agir sur l'énergie superficielle des composants pour maîtriser la séparation des fils composites. On peut produire des fils à faible orientation, de l'échelle du sous-denier et du micro-denier, à partir de polymères de masse moléculaire relativement élevée et ce, afin d'obtenir des non-tissés dotés d'une résistance ainsi que de propriétés barrière et de couverture surprenantes.

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