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US 10,765,569 B2Granted
Synthetic surfactant-free finish, sheet having synthetic surfactant-free finish, articles having sheet with synthetic surfactant-free finish, and related methods
AssigneeAttends Healthcare Products, Inc.
InventorsHarry J. Chmielewski, Edward L. Seames
Life of this patent
Estimating the term…
Abstract
Nonwoven (and film) topsheet and acquisition/distribution materials treated with a hydrophilic, synthetic surfactant-free finish, absorbent articles for infant or incontinence care that contain these materials, and methods for apply such finishes and/or making such absorbent articles.
Claims12
A hydrophilic, synthetic sheet comprising:
- a sheet of synthetic material having a first surface;
- where the sheet comprises a hydrophilic finish including molecules of a water-soluble protein dispersed on the first surface;
- where the finish includes substantially no synthetic surfactants;
- where a 0.5-10% aqueous solution of the water-soluble protein has a surface tension of less than 49 milliNewtons per meter (mN/m);
- and
- the water-soluble protein comprises soy protein isolate.
3 more elements
A method of imparting hydrophilic properties to a sheet of polymeric material, the method comprising:
- applying a 0.5-10% aqueous solution of a water-soluble protein having a surface tension of less than 49 milliNewtons per meter (mN/m) to a sheet of polymeric material in an aqueous solution;
- and
- drying the sheet such that at least a portion of the protein is retained on a surface of the sheet;
- where the aqueous solution is substantially free of synthetic surfactants;
- and
- where the protein comprises soy protein isolate.
3 more elements
A finish for a synthetic nonwoven or film, the finish comprising:
- an 0.5-10% aqueous solution of a water-soluble, thermally-denatured protein, the solution having a surface tension less than 49 milliNewtons per meter (mN/m);
- where the aqueous solution is substantially free of synthetic surfactants;
- and
- where the protein comprises soy protein isolate.
1 more element
Dependencies are inferred from the claim text.