초록 ▼

A method of producing a patterned and/or apertured nonwoven material wherein a web of continuous filaments are formed on a forming member, the continuous filaments being free from each other without any thermal or adhesive bonds therebetween, and applying a wetformed fiber dispersion containing natu

A method of producing a patterned and/or apertured nonwoven material wherein a web of continuous filaments are formed on a forming member, the continuous filaments being free from each other without any thermal or adhesive bonds therebetween, and applying a wetformed fiber dispersion containing natural and/or synthetic or regenerated staple fibers on top of the synthetic filaments. The web is hydroentangled, from the side on which the natural fibers and/or staple fibers are applied, in two subsequent hydroentangling stations and is between the hydroentangling stations transferred from a first hydroentangling wire having a mesh value of at least 20 mesh/cm, to a second hydroentangling wire, having a mesh value of no more than 15 mesh/cm. A nonwoven material is obtained having one side with predominantly continuous filaments and one side with predominantly natural fibers and/or synthetic staple fibers, wherein the material on the side with predominantly natural fibers and/or synthetic staple fibers has a three-dimensionally patterned structure and that natural fibers and/or synthetic staple fibers are penetrating into the layer of continuous filaments and are protruding through the layer of continuous filament.

대표청구항 ▼

The invention claimed is: 1. A method of producing a patterned and/or apertured nonwoven material comprising forming a web of continuous filaments on a forming member, the continuous filaments being free from each other without any thermal or adhesive bonds therebetween; applying a wet-or foam form

The invention claimed is: 1. A method of producing a patterned and/or apertured nonwoven material comprising forming a web of continuous filaments on a forming member, the continuous filaments being free from each other without any thermal or adhesive bonds therebetween; applying a wet-or foam formed fiber dispersion containing natural fibers and/or synthetic or regenerated staple fibers on top of said continuous filaments, thus forming a fibrous web containing said continuous filaments and said natural fibers and/or staple fibers; and subsequently hydroentangling the fibrous web, the web during hydroentangling being supported by a first entangling member, wherein the fibrous web is hydroentangled, from the side on which the natural fibers and/or staple fibers are applied, in two hydroentangling stations disposed one after the other, and between said hydroentangling stations is transferred from said first entangling member to a second entangling member, said first entangling member has a mesh value of at least 20 mesh/cm and the second entangling member has a mesh value of no more than 15 mesh/cm, and after the second hydroentangling station, drying the web without additional hydroentangling. 2. A method according to claim 1, wherein no hydroentangling of the fibrous web takes place from the side on which the continuous filaments are applied. 3. A method according to claim 1, wherein the natural fibres and/or the synthetic staple fibres are deposited on top of said web of continuous filaments. 4. A method according to claim 1, wherein the first entangling member has a mesh value of at least 30 mesh/cm. 5. A method according to claim 1, wherein the second entangling member has a mesh value of no more than 12 mesh/cm. 6. A method according to claim 1, wherein the first entangling member has a count value of at least 17. 7. A method according to claim 1, wherein the second entangling member has a count value of no more than 15. 8. A method according to claim 1, wherein at least the second entangling member is a woven wire. 9. A method according to claim 1, wherein the continuous filaments are spunlaid filaments. 10. A method according to claim 1, wherein the fibrous web comprises between 0.5 and 50% by weight of continuous filaments. 11. A method according to claim 1, wherein the fibrous web comprises between 20 and 85% by weight of natural fibers. 12. A method according to claim 11, wherein the natural fibers are pulp fibers. 13. A method according to claim 1, wherein the fibrous web comprises between 5 and 50% by weight of synthetic or regenerated staple fibers. 14. A method according to claim 13, wherein at least a major part of the synthetic staple fibres have a fiber length between 3 and 7 mm. 15. A method according to claim 1, wherein apertures are formed in the fibrous web in the second entangling station. 16. The method according to claim 1, wherein the first entangling member has a count value between 23 and 35 count/cm, and the second entangling member a count value between 6 and 11 count/cm. 17. A method according to claim 1, wherein the fibrous web comprises between 15 and 30% by weight of continuous filaments. 18. A method according to claim 1, wherein the fibrous web comprises between 40 and 75% by weight of natural fibers.