Tissue-based water barrier material
AssigneeKimberly-Clark Worldwide, Inc.
InventorsMaria del Carmen Lopez Garcia, Sridhar Ranganathan
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Abstract
A hydrophobic, liquid-impermeable substrate includes a hydrophilic nonwoven having a treated surface, a polyolefin dispersion disposed on the treated surface, and a hydrophobic chemistry disposed on the polyolefin dispersion. A method for preparing a hydrophobic, breathable, liquid-impermeable substrate includes providing a hydrophilic nonwoven having a treated surface, applying a polyolefin dispersion to the treated surface, and applying a hydrophobic chemistry to the polyolefin dispersion. The hydrophilic nonwoven can be tissue or paper toweling. The hydrophobic chemistry can be a water-dispersible hydrophobic polymer.
Claims20
A hydrophobic, liquid-impermeable substrate comprising:
- a hydrophilic nonwoven having a treated surface;
- a polyolefin dispersion disposed on the treated surface;
- and a hydrophobic chemistry disposed on the polyolefin dispersion.
A method for preparing a hydrophobic, breathable, liquid-impermeable substrate comprising:
- providing a hydrophilic nonwoven having a treated surface;
- applying a polyolefin dispersion to the treated surface;
- and
- applying a hydrophobic chemistry to the polyolefin dispersion.
Dependencies are inferred from the claim text.