Hydroentangled nonwoven composites

Details Hydroentangled nonwoven composites Hydroentangled nonwoven composites

B - Operations, Transporting

32

B

B32B 5/26 (2006.01) A61F 13/15 (2006.01) B32B 7/08 (2006.01) B32B 23/02 (2006.01) B32B 23/10 (2006.01) D04H 5/08 (2006.01) D04H 13/00 (2006.01)

Patent

CA 2220725

Disclosed herein is an entangled nonwoven composite made from absorbent fibers such as wood pulp fibers and matrix fibers such as polyolefin staple fibers. The absorbent fibers are entangled with the matrix fibers in such a manner so that the composite has an absorbent-rich side and a matrix-rich side. Intermediate the two exterior sides there is an entangled interior portion made from a mixture of the absorbent and matrix fibers. The composite is particularly well-suited for use in multifunctional handling of fluids such as, for example, body fluids which are absorbed by personal care absorbent articles. The matrix fiber portion of the composite acts as a fluid intake region while the absorbent fiber portion acts as a fluid retention region and the portion of the composite intermediate the two exterior surfaces acts as a fluid transfer region.

Composite non tissé enchevêtré fabriqué à partir de fibres absorbantes telles que des fibres de pâte de bois, et de fibres matrices telles que des fibres discontinues polyoléfiniques. Les fibres absorbantes et les fibres matrices sont enchevêtrées de telle manière que le composite présente une face majoritairement composée de fibres absorbantes, et une face majoritairement composée de fibres matrices. Entre ces deux faces extérieures se situe une partie intérieure enchevêtrée fabriquée à partir d'un mélange des fibres absorbantes et matrices. Ce composite convient notamment aux articles polyvalents devant venir au contact de liquides tels que les liquides de l'organisme absorbés par les articles absorbants destinés à l'hygiène personnelle. La partie du composite qui est constituée de fibres matrices sert de zone d'entrée de liquides, tandis que la partie constituée de fibres absorbantes sert de zone de rétention de liquides, et la partie située entre les deux faces extérieures sert de zone de transfert de liquides.

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