Pulp-containing biodegradable non-woven fabric and method for producing the same
AssigneeGlatfelter Gernsbach GmbH
InventorHenning Roettger
Life of this patent
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Abstract
The present invention relates to a biodegradable non-woven fabric, a method for producing a biodegradable non-woven fabric and a wipe or tissue. The biodegradable non-woven fabric comprises biodegradable fibers and pulp fibers. At least a part of the biodegradable fibers is entangled with each other. At least a part of the pulp fibers is covalently bonded to each other by at least one of the group consisting of a biodegradable binder, a biodegradable wet-strength agent and a biodegradable binder fiber.
Claims16
A biodegradable non-woven fabric comprising biodegradable fibers and pulp fibers,
- wherein at least a part of the biodegradable fibers is entangled with each other, and
- at least a part of the pulp fibers is covalently bonded to each other by at least one of the group consisting of a biodegradable binder, a biodegradable wet-strength agent and a biodegradable binder fiber.
A method for producing a biodegradable non-woven fabric, comprising the steps of:
- (a) forming a fibrous web from a fiber blend comprising biodegradable fibers and pulp fibers or forming a layer of biodegradable fibers with a layer of tissue;
- (b) entangling at least a part of the biodegradable fibers with each other by subjecting the fibrous web or the fibrous web combined with a tissue layer to a water-jet treatment;
- and
- (c) drying the entangled fibrous web,
- wherein the method further comprises at least one of the following steps:
- applying a biodegradable binder to the entangled fibrous web prior to drying the entangled fibrous web,
- adding a biodegradable wet-strength agent to the fiber blend,
- blending a biodegradable binder fiber to the fiber blend.
Use of a biodegradable binder, a biodegradable wet-strength agent and/or a biodegradable binder fiber for imparting resiliency to a wipe or tissue comprising a biodegradable non-woven fabric.
Dependencies are inferred from the claim text.