FR769286A - Procédé de fabrication de papier doublement infalsifiable - Google Patents
Procédé de fabrication de papier doublement infalsifiableInfo
- Publication number
- FR769286A FR769286A FR769286DA FR769286A FR 769286 A FR769286 A FR 769286A FR 769286D A FR769286D A FR 769286DA FR 769286 A FR769286 A FR 769286A
- Authority
- FR
- France
- Prior art keywords
- manufacturing process
- paper manufacturing
- proof paper
- double tamper
- tamper
- 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
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 |
|---|---|---|---|
| FR769286T | 1934-01-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR769286A true FR769286A (fr) | 1934-08-23 |
Family
ID=9184703
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR769286D Expired FR769286A (fr) | 1934-01-19 | 1934-01-19 | Procédé de fabrication de papier doublement infalsifiable |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR769286A (fr) |
-
1934
- 1934-01-19 FR FR769286D patent/FR769286A/fr not_active Expired
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