Process for producing fine fibers and fabrics thereof

Details Process for producing fine fibers and fabrics thereof Process for producing fine fibers and fabrics thereof

D - Textiles, Paper

01

D

D01D 5/30 (2006.01) D01F 8/00 (2006.01) D01F 8/06 (2006.01) D01F 8/12 (2006.01) D01F 8/14 (2006.01) D04H 1/42 (2006.01) D04H 3/16 (2006.01)

Patent

CA 2256414

The disclosed invention relates to split fibers and improved means and methods for obtaining them as well as their use in nonwovens and incorporation into personal care and other products. Multicomponent filaments are formed including at least two incompatible components. These filaments are drawn under hot aqueous, for example, steam, conditions causing them to split into fibers containing the incompatible components. These fibers are collected as a fine fiber nonwoven which finds utility as a component of sanitary napkins, diapers and other products.

La présente invention, qui concerne des fibres clivées, concerne également un perfectionnement des moyens et procédés permettant d'obtenir de telles fibres. L'invention concerne également l'utilisation de telles fibres dans des non tissés, et leur incorporation dans des produits d'hygiène personnelle ou autres. Les filaments multicomposants obtenus selon l'invention comportent au moins deux composants incompatibles entre eux. Le procédé consiste à réaliser l'étirage de ces filaments dans des conditions d'ambiance très chaude et humide, par exemple dans une atmosphère de vapeur, de façon à provoquer un clivage des filaments en fibres contenant les composants incompatibles. Ces fibres, qui sont restituées sous forme d'un non tissé de fibres fines, conviennent comme composants notamment pour les serviettes hygiéniques et les couches pour bébés.

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