Laminated material and method for its production
AssigneeCarl Freudenberg KG
InventorsDieter Groitzsch, Gerhard Schaut
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Abstract
A laminate is claimed, having a first cover layer, a fabric with perforations as the middle layer, and a second cover layer, as are a method for its production and the use of the laminate as a fluid absorption and distribution layer made of a nonwoven fabric layer oriented in the Z direction, for absorbent hygiene articles. A three-dimensional form is achieved in that the fabric is present in the shrunk state in the middle layer, i.e. is brought into this state.
Claims23
A laminate material comprising a first cover layer, a middle layer of fabric having perforations thereon, and a second cover layer,
- wherein the fabric has been shrunk to cause alignment in the Z direction of the entire laminate material by way of undulation or other geometric alignment of the fabric, and
- wherein the fabric is formed of a polymer having a relatively coarse monofilaments in the lengthwise direction and a relatively fine monofilaments in the crosswise direction.
A laminate having a first cover layer, a middle layer made of non-intersecting filaments, and a second cover layer, the non-intersecting filaments having been shrunk to cause alignment in the Z direction of the entire laminate by way of undulation or other geometric alignment of the middle layer,
- wherein the middle layer further comprises parallel monofilaments made of a first thermoplastic, oriented lengthwise;
- and monofilaments made of a second thermoplastic being deposited above and/or below the filaments of the first thermoplastic;
- the second monofilaments being arranged such that at least two parallel filaments of the first thermoplastic, aligned in a linear orientation, are intersected and bonded.
Dependencies are inferred from the claim text.