Three-dimensional substrates

US10206826B2 · kind B2 · utility

Assignee

• The Procter & Gamble Company · US

Inventors

• Olaf Erik Alexander Isele · Sharonville, US
• Jörg Endres · Frankfurt am Main, DE
• Gueltekin ERDEM · Beijing, CN
• Rodrigo Rosati · Francavilla al Mare, IT
• Paul Thomas Weisman · Cincinnati, US
• Sharon Ann Young · Mason, US
• Mike P. Purdon · Hebron, US

Key dates

• Filing date: Mar 2, 2015
• Grant date: Feb 19, 2019
• Expiry date: Aug 26, 2035

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61F2013/8491
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A liquid permeable substrate for an absorbent article is disclosed. The substrate includes a first layer including a hydrophobic material and a second layer including a hydrophilic material. The first layer is joined to the second layer. The substrate includes a plurality of recesses, a plurality of projections, and a plurality of land areas. The land areas surround at least a majority of the plurality of projections and a plurality of the recesses. The plurality of recesses, the plurality of projections, and the plurality of land areas together form a first three-dimensional surface on a first side of the substrate and a second three-dimensional surface on a second side of the substrate. The substrate has an overall z-directional height in the range of about 1000 μm to about 6000 μm according to the Overall Substrate Height Test.