Invention Grant
- Patent Title: Fibrous web of paper or board and method of making the same
- Patent Title (中): 纤维网的纸或纸板和制作相同的方法
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Application No.: US14396554Application Date: 2013-04-24
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Publication No.: US09334610B2Publication Date: 2016-05-10
- Inventor: Karita Kinnunen , Tuomo Hjelt
- Applicant: STORA ENSO OYJ
- Applicant Address: FI Helsinki
- Assignee: Stora Enso OYJ
- Current Assignee: Stora Enso OYJ
- Current Assignee Address: FI Helsinki
- Agency: Patterson Thuente Pedersen, P.A.
- Priority: FI20125462 20120426
- International Application: PCT/FI2013/050460 WO 20130424
- International Announcement: WO2013/160553 WO 20131031
- Main IPC: D21H27/30
- IPC: D21H27/30 ; D21H11/18 ; D21H21/24 ; D21H21/56 ; D21F11/00 ; B32B5/26 ; B32B7/02 ; B32B29/00 ; D21H17/09

Abstract:
The invention relates to a fibrous web product such as paper, and a method for the preparation of such fibrous web. According to the method microfibrillated cellulose (MFC) together with a pulp of a greater fiber length, such as chemithermomechanical pulp (CTMP), are mixed with a foam of water and a sur-factant, the foam is supplied to a forming fabric of a paper or board machine, dewatered by suction of air through the forming fabric, and dried to the final web product. The method brings a high bulk in combination with a high Scott bond value, to provide improved wet and dry tensile strength for the paper and board products.
Public/Granted literature
- US20150114581A1 FIBROUS WEB OF PAPER OR BOARD AND METHOD OF MAKING THE SAME Public/Granted day:2015-04-30
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