Invention Grant
- Patent Title: Fibrous sheet with improved properties
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Application No.: US17572829Application Date: 2022-01-11
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Publication No.: US12043963B2Publication Date: 2024-07-23
- Inventor: Deborah J. Calewarts , Jian Qin , Charles W. Colman , Cathleen M. Uttecht , Donald E. Waldroup , Francis P. Abuto , Jenny L. Day , Stephen M. Lindsay
- Applicant: Kimberly-Clark Worldwide, Inc.
- Applicant Address: US WI Neenah
- Assignee: Kimberly-Clark Worldwide, Inc.
- Current Assignee: Kimberly-Clark Worldwide, Inc.
- Current Assignee Address: US WI Neenah
- Agency: KIMBERLY-CLARK WORLDWIDE, INC.
- The original application number of the division: US16767614
- Main IPC: D21H27/38
- IPC: D21H27/38 ; D04H1/425 ; D04H1/4374 ; D04H1/541 ; D04H1/559 ; D04H1/593 ; D04H1/732 ; D21F11/00 ; D21F11/02 ; D21H13/24 ; D21H15/04 ; D21H17/35 ; D21H21/16

Abstract:
A method for producing a foam-formed multilayered substrate that includes producing an aqueous-based foam including at least 3% by weight non-straight synthetic binder fibers, wherein the non-straight synthetic binder fibers have an average length greater than 2 mm; forming together a wet sheet layer from the aqueous-based foam and a cellulosic fiber layer, wherein the cellulosic fiber layer includes at least 60 percent by weight cellulosic fibers; and drying the combined layers to obtain the foam-formed multilayer substrate. A multilayered substrate includes a first layer including at least 60 percent by weight non-straight synthetic binder fibers having an average length greater than 2 mm; and a second layer including at least 60 percent by weight cellulosic fiber, wherein the first layer is in a facing relationship with the second layer, and wherein the multilayered substrate has a wet/dry tensile ratio of at least 60%.
Public/Granted literature
- US20220127792A1 FIBROUS SHEET WITH IMPROVED PROPERTIES Public/Granted day:2022-04-28
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