FI102622B1 - Method and arrangement for formation of a paper or cardboard web - Google Patents

Method and arrangement for formation of a paper or cardboard web

Info

Publication number
FI102622B1
FI102622B1 FI973775A FI973775A FI102622B1 FI 102622 B1 FI102622 B1 FI 102622B1 FI 973775 A FI973775 A FI 973775A FI 973775 A FI973775 A FI 973775A FI 102622 B1 FI102622 B1 FI 102622B1
Authority
FI
Finland
Prior art keywords
raw material
formation
web
substrate
paper
Prior art date
Application number
FI973775A
Other languages
Finnish (fi)
Swedish (sv)
Other versions
FI102622B (en
FI973775A0 (en
Inventor
Vilho Nissinen
Original Assignee
Valmet Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Valmet Corp filed Critical Valmet Corp
Priority to FI973775A priority Critical patent/FI102622B/en
Publication of FI973775A0 publication Critical patent/FI973775A0/en
Application granted granted Critical
Publication of FI102622B1 publication Critical patent/FI102622B1/en
Publication of FI102622B publication Critical patent/FI102622B/en

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  • Paper (AREA)

Abstract

Method for formation of a paper or cardboard web from fibrous powder or an aqueous mixture of fibers, in which method the web forming the raw material is supplied to a web forming the web substrate by means of a strong electric field and gas flow or ion blowing, which is formed between the electrodes that form the electric field. Fixation of the raw material on the substrate is ensured by electric forces that act on the raw material. During use of dry raw material, the raw material is moistened or a binder of synthetic material is added before it is fed to a press nip 1, 5, 11, 12 which is used for the web formation, for formation of hydrogen bonds or another bonding effect between the particles and the raw material. After moistening, the formation substrate 1 with supplied raw material is conveyed to at least one press nip 1, 5, 11, 12 for pressing of a fixed web of raw material fibers. <IMAGE>
FI973775A 1997-09-24 1997-09-24 Method and apparatus for forming a paper or cardboard web FI102622B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FI973775A FI102622B (en) 1997-09-24 1997-09-24 Method and apparatus for forming a paper or cardboard web

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI973775 1997-09-24
FI973775A FI102622B (en) 1997-09-24 1997-09-24 Method and apparatus for forming a paper or cardboard web

Publications (3)

Publication Number Publication Date
FI973775A0 FI973775A0 (en) 1997-09-24
FI102622B1 true FI102622B1 (en) 1999-01-15
FI102622B FI102622B (en) 1999-01-15

Family

ID=8549589

Family Applications (1)

Application Number Title Priority Date Filing Date
FI973775A FI102622B (en) 1997-09-24 1997-09-24 Method and apparatus for forming a paper or cardboard web

Country Status (1)

Country Link
FI (1) FI102622B (en)

Also Published As

Publication number Publication date
FI102622B (en) 1999-01-15
FI973775A0 (en) 1997-09-24

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Legal Events

Date Code Title Description
FG Patent granted

Owner name: VALMET CORPORATION