D - Textiles – Paper – 21 – H
Patent
D - Textiles, Paper
21
H
D21H 27/42 (2006.01) D04H 1/54 (2006.01) D04H 5/06 (2006.01) D04H 5/08 (2006.01)
Patent
CA 2246323
An inexpensive sheet or web shaped fibre material for use e.g. in sanitary napkins typically consists of a mixture of short cellulose fibres and some 15 % of relatively long, thermoplastic binder fibres. It is a noticeable problem that the short fibres "dust" out of the material, and according to the invention this is remedied in that the material, when made by dry forming, is provided with a surface coating of very thin layers of pure binder fibres. In addition to a marked holding back of the dust, these layers condition that the amount of binder fibres in the base material can be halved and that the breaking stress of the material is noticeably improved. Thereby the products are usable not only as inserts, but also as individual, self-contained units e.g. for wiping in domestic or industrial cleaning.
L'invention porte sur un matériau économique en feuille ou en bande formé à sec utilisable notamment pour des serviettes à usage sanitaire et consistant en un mélange de fibres courtes de cellulose et d'environ 15 % de fibres thermoplastiques de liaison relativement longues. On sait que les fibres courtes ont tendance à former une poussière se détachant du matériau, or l'invention y remédie en ce que le formage à sec donne un revêtement superficiel de couches très fines de fibres de liaison pures. En plus de la nette rétention de la poussière de fibres, ces couches permettent de réduire de moitié la quantité de fibres de liaison du matériau de base tout en augmentant sensiblement sa résistance à la rupture. Le produit peut donc s'employer non seulement comme élément d'insertion mais comme unité individuelle autonome par exemple comme torchon à usage domestique ou pour le nettoyage industriel.
Marks & Clerk
Scan-Web I/s
LandOfFree
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