FI102622B1 - Method and arrangement for formation of a paper or cardboard web - Google Patents
Method and arrangement for formation of a paper or cardboard webInfo
- 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
Links
Landscapes
- 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>
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) |
-
1997
- 1997-09-24 FI FI973775A patent/FI102622B/en active IP Right Grant
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 |