DE69019737D1 - METHOD FOR PRODUCING PAPER WITH WATERMARK. - Google Patents
METHOD FOR PRODUCING PAPER WITH WATERMARK.Info
- Publication number
- DE69019737D1 DE69019737D1 DE69019737T DE69019737T DE69019737D1 DE 69019737 D1 DE69019737 D1 DE 69019737D1 DE 69019737 T DE69019737 T DE 69019737T DE 69019737 T DE69019737 T DE 69019737T DE 69019737 D1 DE69019737 D1 DE 69019737D1
- Authority
- DE
- Germany
- Prior art keywords
- watermark
- producing paper
- paper
- producing
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Lifetime
Links
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F1/00—Wet end of machines for making continuous webs of paper
- D21F1/44—Watermarking devices
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F1/00—Wet end of machines for making continuous webs of paper
- D21F1/44—Watermarking devices
- D21F1/46—Dandy rolls
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F1/00—Wet end of machines for making continuous webs of paper
- D21F1/60—Cylinder moulds
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP32476589A JPH0686719B2 (en) | 1989-12-14 | 1989-12-14 | Method for producing transparent paper |
PCT/JP1990/001602 WO1991009172A1 (en) | 1989-12-14 | 1990-12-10 | Method of making watermarked paper |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69019737D1 true DE69019737D1 (en) | 1995-06-29 |
DE69019737T2 DE69019737T2 (en) | 1996-02-08 |
Family
ID=18169427
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69019737T Expired - Lifetime DE69019737T2 (en) | 1989-12-14 | 1990-12-10 | METHOD FOR PRODUCING PAPER WITH WATERMARK. |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0458973B1 (en) |
JP (1) | JPH0686719B2 (en) |
DE (1) | DE69019737T2 (en) |
WO (1) | WO1991009172A1 (en) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2769927B1 (en) * | 1997-10-20 | 1999-12-24 | Thibierge Et Comar | PAPER COMPRISING A RELIEF PATTERN, ITS MANUFACTURING METHOD AND CANVAS FOR MANUFACTURING IT |
DE102008024401B3 (en) * | 2008-05-20 | 2010-01-07 | Hans Grossmann | Drainage screen for a suction roll of a paper machine |
CN101372816B (en) * | 2008-09-20 | 2011-04-20 | 李�昊 | Casing of vacuum rotary screen cage |
CN102373642B (en) * | 2011-11-10 | 2014-07-23 | 保定钞票纸业有限公司 | Two-dimension code watermark anti-counterfeiting paper and manufacture method thereof,as well as watermark cylinder mould |
CN103128471A (en) * | 2013-03-19 | 2013-06-05 | 四川大学 | White watermark automatic welding system |
CA2918041A1 (en) | 2013-07-09 | 2015-01-15 | Georgia-Pacific Gypsum Llc | Selectively sized multi-ply core stock paper, methods, and apparatus |
CH709680A1 (en) | 2014-05-21 | 2015-11-30 | Landqart Ag | Dewatering screen for manufacturing paper with at least one watermark and therefore made paper with a watermark. |
CN105672042B (en) * | 2016-01-21 | 2018-08-07 | 成都印钞有限公司 | A kind of manufacture craft of anti-forge paper with latent image watermark and the paper |
CN111231493A (en) * | 2019-12-13 | 2020-06-05 | 成都印钞有限公司 | Paper forming die, die manufacturing method and paper manufactured by forming die |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE116431C (en) * | ||||
DE59473C (en) * | E. HOESCH, Königlicher Kommerzienrath, in Düren und M. KRAUSE in Berlin S.W., Beuthstrafse 7 | Creation of colored watermarks on the paper machine | ||
US1514238A (en) * | 1922-04-07 | 1924-11-04 | F C Huyck & Sons | Means for watermarking paper |
GB373905A (en) * | 1930-10-20 | 1932-06-02 | Nat Bank Of Hungary | Process for the production of genuine watermark papers without using relief moulds |
CH206738A (en) * | 1937-11-12 | 1939-08-31 | Ernst Walter Ludwig | Relief stencil for creating real relief watermarks. |
CH244613A (en) * | 1945-05-25 | 1946-09-30 | Reinhardt Erwin | Device on paper machines for the production of watermarks that appear darker when viewed through the paper compared to the same. |
JPS5341523Y2 (en) * | 1973-05-14 | 1978-10-06 | ||
US4526652A (en) * | 1983-11-17 | 1985-07-02 | The Mead Corporation | Dandy roll for manufacturing paper having simulated oxford cloth watermark and related method for papermaking |
-
1989
- 1989-12-14 JP JP32476589A patent/JPH0686719B2/en not_active Expired - Fee Related
-
1990
- 1990-12-10 WO PCT/JP1990/001602 patent/WO1991009172A1/en active IP Right Grant
- 1990-12-10 DE DE69019737T patent/DE69019737T2/en not_active Expired - Lifetime
- 1990-12-10 EP EP91900050A patent/EP0458973B1/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JPH0686719B2 (en) | 1994-11-02 |
EP0458973A4 (en) | 1992-06-03 |
WO1991009172A1 (en) | 1991-06-27 |
DE69019737T2 (en) | 1996-02-08 |
JPH03185200A (en) | 1991-08-13 |
EP0458973A1 (en) | 1991-12-04 |
EP0458973B1 (en) | 1995-05-24 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8363 | Opposition against the patent | ||
8365 | Fully valid after opposition proceedings |