Hydroentangled split-fibre nonwoven material
AssigneeSCA Hygiene Products AB
InventorsAnders Stralin, Hannu Ahoniemi, Lars Fingal, Mikael Strandqvist
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Abstract
A hydroentangled integrated composite nonwoven material, includes a mixture of randomized continuous filaments, splittable shortcut staple fibres, and optionally non-splittable staple fibres. The splittable fibres should be 3-16 mm long bicomponent fibres. Preferably there should be no thermal bonding points between the filaments. The nonwoven material has improved textile feeling and reduced two-sidedness. The continuous filaments should preferably be spunlaid filaments. Some of the staple fibres can be coloured. A process of producing such a nonwoven material is disclosed.
Claims23
A hydroentangled integrated composite nonwoven material,
- comprising a mixture of randomized continuous filaments and staple fibres, wherein
- the staple fibres are splittable shortcut staple fibres having a length of 3 to 16 mm.
A method of producing a hydroentangled integrated composite nonwoven material (9), comprising
- forming a web of randomized continuous filaments on a forming fabric;
- providing an aqueous fibre dispersion comprising splittable shortcut staple fibres and optionally non-splittable staple fibres;
- wetlaying the aqueous fibre dispersion on the web of continuous filaments;
- thus forming a fibrous web comprising the continuous filaments, splittable shortcut staple fibres and optional non-splittable staple fibres;
- and
- subsequently hydroentangling the fibrous web to form a hydroentangled nonwoven material, wherein
- the splittable shortcut staple fibres have a length of 3 to 16 mm,
- and that the major part of the splittable fibres is split during the dispersion preparation or hydroentanglement process steps.
Dependencies are inferred from the claim text.