AT132051B - Process for the production of security paper. - Google Patents
Process for the production of security paper.Info
- Publication number
- AT132051B AT132051B AT132051DA AT132051B AT 132051 B AT132051 B AT 132051B AT 132051D A AT132051D A AT 132051DA AT 132051 B AT132051 B AT 132051B
- Authority
- AT
- Austria
- Prior art keywords
- production
- security paper
- security
- paper
- Prior art date
Links
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
- D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
- D21H21/40—Agents facilitating proof of genuineness or preventing fraudulent alteration, e.g. for security paper
- D21H21/44—Latent security elements, i.e. detectable or becoming apparent only by use of special verification or tampering devices or methods
- D21H21/46—Elements suited for chemical verification or impeding chemical tampering, e.g. by use of eradicators
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE582530T | 1930-10-08 |
Publications (1)
Publication Number | Publication Date |
---|---|
AT132051B true AT132051B (en) | 1933-02-25 |
Family
ID=6344578
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT132051D AT132051B (en) | 1930-10-08 | 1931-10-05 | Process for the production of security paper. |
Country Status (4)
Country | Link |
---|---|
US (1) | US1864116A (en) |
AT (1) | AT132051B (en) |
DE (1) | DE582530C (en) |
GB (1) | GB378694A (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2622491A (en) * | 1948-10-04 | 1952-12-23 | Patent & Licensing Corp | Process of making multiply waterproofed sheets |
NL264698A (en) * | 1960-02-19 | |||
US3326744A (en) * | 1963-03-01 | 1967-06-20 | Eastman Kodak Co | Stain-free paper sized with starch or gelatin and aromatic organic acids |
FR2647820B1 (en) * | 1989-06-01 | 1991-09-20 | Aussedat Rey | INFALSIFIABLE SECURITY PAPER AND AQUEOUS OR ORGANIC COMPOSITION USEFUL, IN PARTICULAR FOR MAKING PAPER INFALSIFIABLE |
FR2650606B1 (en) * | 1989-08-07 | 1992-04-30 | Aussedat Rey | INFALSIFIABLE SECURITY PAPER AND AQUEOUS OR ORGANIC COMPOSITION USEFUL, IN PARTICULAR FOR MAKING PAPER INFALSIFIABLE |
-
1930
- 1930-10-08 DE DE1930582530D patent/DE582530C/en not_active Expired
-
1931
- 1931-10-03 US US566806A patent/US1864116A/en not_active Expired - Lifetime
- 1931-10-05 AT AT132051D patent/AT132051B/en active
- 1931-10-07 GB GB27892/31A patent/GB378694A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
US1864116A (en) | 1932-06-21 |
GB378694A (en) | 1932-08-18 |
DE582530C (en) | 1933-08-16 |
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