Hydroentangled split-fibre nonwoven material
AssigneeSCA Hygiene Products AB
InventorsAnders Stralin, Hannu Ahoniemi, Lars Fingal, Mikael Strandqvist
Life of this patent
Estimating the term…
Abstract
A hydroentangled integrated composite nonwoven material, includes a mixture of randomized continuous filaments, splittable shortcut staple fibers, and optionally non-splittable staple fibers. The splittable fibers should be 3-16 mm long bicomponent fibers. 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 fibers can be colored. A process of producing such a nonwoven material is disclosed.
Claims13
A method of producing a hydroentangled integrated composite nonwoven material, comprising
- forming a web of randomized continuous filaments on a forming fabric;
- providing an aqueous fibre dispersion comprising splittable shortcut staple fibres having a length of 3 to 16 mm;
- wetlaying the aqueous fibre dispersion on the web of continuous filaments;
- thus forming a fibrous web comprising the continuous filaments and splittable shortcut staple fibres;
- and
- subsequently hydroentangling the fibrous web to form a hydroentangled nonwoven material, wherein a numerical majority of the splittable fibres are split during the hydroentanglement step.
Dependencies are inferred from the claim text.