Crimp enhancement additive for multicomponent filaments

Details Crimp enhancement additive for multicomponent filaments Crimp enhancement additive for multicomponent filaments

D - Textiles, Paper

01

F

D01F 8/04 (2006.01) D01F 1/10 (2006.01) D01F 8/06 (2006.01) D04H 3/02 (2006.01) D04H 3/16 (2006.01)

Patent

CA 2303240

Spunbond multicomponent filaments and nonwoven webs made from the filaments are disclosed. In accordance with the present invention, the multicomponent filaments contain a crimp enhancement additive. Specifically, the crimp enhancement additive is added to one of the polymeric components in order to accelerate its solidification rate. The additive enhances crimp, allows for highly crimped filaments to be made at smaller deniers, and produces low density webs with improved stretch and cloth-like properties. Specifically, the additive incorporated into the filaments is a nonionic surfactant such as an alkyl ether alkoxylate, a siloxane alkoxylate, an ester of a polyalkylene glycol, a polysaccharide derivative, a glycerol ester, or mixtures thereof.

L'invention concerne des filaments à composants multiples filés-liés et des nappes produites à partir de ces filaments. Selon la présente invention, les filaments à composants multiples contiennent un additif améliorant de frisure. Spécifiquement, l'additif améliorant de frisure est ajouté à l'un des composants polymères afin d'accélérer la vitesse de solidification de celui-ci. L'additif permet d'améliorer la frisure, de produire des filaments fortement frisés à des deniers plus faibles, et d'obtenir des nappes basse densité qui présentent des propriétés élastiques et de toucher de type tissu améliorées. Spécifiquement, l'additif incorporé dans les filaments est un tensioactif non ionique tel qu'un alcoxylat d'éther d'alkyle, un alcoxylat de siloxane, un ester d'un polyalkyène glycol, un dérivé de polysaccharide, un ester de glycérol ou des mélanges de ceux-ci.

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