Invention Grant
- Patent Title: Paper products having increased bending stiffness and cross-direction strength and methods for making the same
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Application No.: US16239935Application Date: 2019-01-04
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Publication No.: US11441268B2Publication Date: 2022-09-13
- Inventor: John Mullaney Meazle
- Applicant: INTERNATIONAL PAPER COMPANY
- Applicant Address: US TN Memphis
- Assignee: INTERNATIONAL PAPER COMPANY
- Current Assignee: INTERNATIONAL PAPER COMPANY
- Current Assignee Address: US TN Memphis
- Agent Thomas W. Barnes, III
- Main IPC: D21F1/02
- IPC: D21F1/02 ; D21F1/18 ; D21F1/20 ; D21F11/04 ; D21F9/00 ; D21F1/06

Abstract:
A process for making a paper product comprising: providing a forming fabric; causing the forming fabric to rotate such that an upper surface of the forming fabric moves in a machine direction; providing a multi-layer headbox comprising first and second inlet headers and a slice outlet; providing a first aqueous slurry of first fibers to the first inlet header and a second aqueous slurry of second fibers to the second inlet header; combining streams of the first and second aqueous slurries to define a jet exiting the slice outlet; emitting the jet onto the upper surface of the forming fabric to form a web; causing the forming fabric to oscillate in a direction transverse to the machine direction, whereby at least a significant number of the first fibers are caused to align in a direction that deviates from the machine direction; and forming the paper product from the web.
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