Biodegradable absorbent articles
AssigneeEveryone's Earth Inc.
InventorsNicole M. Richards, Thomas C. Kallish
Life of this patent
Estimating the term…
Abstract
A biodegradable, disposable absorbent article, such as a diaper, having a non-woven inner layer of natural fibers and a non-woven outer layer of natural fibers and a treatment applied to at least one surface thereof. The treatment includes at least one compound selected from the group consisting of waxes, urethanes, silicones, fluorocarbons, and non-fluorochemical repellents. The absorbent article has a core of natural fibers or fibrous material, and optionally polyacrylate superabsorbent particles, positioned between the inner layer and the outer layer. The article may contain polylactic acid films between the layers.
Claims19
A disposable absorbent article comprising:
- a non-woven inner layer consisting of 100% cellulosic fibers;
- a hydrophobic non-woven outer layer, the hydrophobic non-woven outer layer consisting of:
- a) 100% cellulosic fibers treated with an internal hydrophobic agent, the internal hydrophobic agent is a dendrimer wax;
- and
- b) an external hydrophobic surface treatment applied to a surface of the non-woven outer layer, the external hydrophobic surface treatment selected from the group consisting of waxes, urethanes, silicones, fluorocarbons, non-fluorochemical repellents, and combinations thereof, and
- a core comprising natural fibers or fibrous material positioned between the non-woven inner layer and the non-woven outer layer.
A biodegradable diaper comprising:
- a non-woven inner layer consisting of 100% cotton;
- a hydrophobic non-woven outer layer, the hydrophobic non-woven outer layer consisting of:
- a) 100% cotton treated with an internal hydrophobic agent, the internal hydrophobic agent is a dendrimer wax;
- and
- b) an external hydrophobic surface treatment applied to a surface of the non-woven outer layer, the external hydrophobic surface treatment selected from the group consisting of waxes, urethanes, silicones, fluorocarbons, non-fluorochemical repellents, and combinations thereof, and
- an absorbent core comprising polyacrylate superabsorbent particles and at least one of cotton and fluff pulp positioned between the non-woven inner layer and the non-woven outer layer.
A disposable absorbent article comprising:
- a non-woven inner layer consisting of 100% cellulosic fibers;
- a hydrophobic non-woven outer layer, the hydrophobic non-woven outer layer consisting of:
- (a) 100% cellulosic fibers treated with an internal hydrophobic agent, the internal hydrophobic agent is a dendrimer wax;
- and
- (b) an external hydrophobic surface treatment applied to a surface of the non-woven outer layer, the external hydrophobic surface treatment selected from the group consisting of waxes, urethanes, silicones, fluorocarbons, non-fluorochemical repellents, and combinations thereof;
- and
- a core positioned between the non-woven inner layer and the non-woven outer layer, the core comprising:
- a corrugated absorbent structure of absorbent material comprising natural fibers or fibrous material, the corrugated absorbent structure having a plurality of alternating peaks and valleys, the plurality of alternating peaks and valleys providing a fluid retainment space in the core.
Dependencies are inferred from the claim text.