Methods of making fabric-creped absorbent cellulosic sheets

US11788232B2 · kind B2 · utility

Assignee

• GPCP IP Holdings LLC · US

Inventors

• Daniel H. Sze · Appleton, US
• Xiaolin Fan · Appleton, US
• Hung Liang Chou · Neenah, US
• Taiye Philips Oriaran · Appleton, US
• Farminder Singh Anand · Painesville, US
• Dean J. Baumgartner · Bonduel, US
• Joseph H. Miller · Neenah, US

Key dates

• Filing date: Apr 15, 2021
• Grant date: Oct 17, 2023
• Expiry date: Jul 15, 2041

Classification

• Technology area (CPC D): Textiles; Paper
• CPC primary: D21H11/00
• WIPO field: Textile and paper machines
• WIPO sector: Mechanical engineering

Abstract

A method of making a fabric-creped absorbent cellulosic sheet. The method includes compactively dewatering a papermaking furnish to form a web having a consistency of about thirty percent to about sixty percent, creping the web under pressure in a creping nip between a transfer surface and a structuring fabric, and drying the web to form the absorbent cellulosic sheet. The absorbent sheet has SAT capacities of at least about 9.5 g/g and at least about 500 g/m2. A creping ratio is defined by the speed of the transfer surface relative to the speed of the structuring fabric, and the creping ratio is less than about 25%.