US322130A - saxony - Google Patents
saxony Download PDFInfo
- Publication number
- US322130A US322130A US322130DA US322130A US 322130 A US322130 A US 322130A US 322130D A US322130D A US 322130DA US 322130 A US322130 A US 322130A
- Authority
- US
- United States
- Prior art keywords
- paper
- saxony
- safety
- manufacturing
- gerhard
- 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
- 238000004519 manufacturing process Methods 0.000 description 12
- 229940097275 Indigo Drugs 0.000 description 6
- 241001062009 Indigofera Species 0.000 description 6
- 235000000177 Indigofera tinctoria Nutrition 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 239000000126 substance Substances 0.000 description 6
- 239000002253 acid Substances 0.000 description 4
- 150000007513 acids Chemical class 0.000 description 4
- ZCDOYSPFYFSLEW-UHFFFAOYSA-N chromate(2-) Chemical compound [O-][Cr]([O-])(=O)=O ZCDOYSPFYFSLEW-UHFFFAOYSA-N 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 229910052788 barium Inorganic materials 0.000 description 2
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium(0) Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- 239000000460 chlorine Substances 0.000 description 2
- 229910052801 chlorine Inorganic materials 0.000 description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M5/00—Duplicating or marking methods; Sheet materials for use therein
- B41M5/124—Duplicating or marking methods; Sheet materials for use therein using pressure to make a masked colour visible, e.g. to make a coloured support visible, to create an opaque or transparent pattern, or to form colour by uniting colour-forming components
- B41M5/165—Duplicating or marking methods; Sheet materials for use therein using pressure to make a masked colour visible, e.g. to make a coloured support visible, to create an opaque or transparent pattern, or to form colour by uniting colour-forming components characterised by the use of microcapsules; Special solvents for incorporating the ingredients
- B41M5/1655—Solvents
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S428/00—Stock material or miscellaneous articles
- Y10S428/916—Fraud or tamper detecting
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24802—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.]
- Y10T428/24835—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.] including developable image or soluble portion in coating or impregnation [e.g., safety paper, etc.]
Definitions
- This invention relates to the manufacture of paper that shall at once indicate anyalteration effected by chemical means of writing or other marks made thereon.
- the known methods for the production of such safety-paper either do not offer perfect security for the purpose required, on account of the chemical reagents employed therein, or they are of such a complicated nature as not to be practically available.
- the purpose aimed at is attained by manufacturing a colored paper of such a nature that the chemicals employed for removing writing or other marks in ink from the same, such as acids, chlorine, &c., will destroy or alter the color, the paper thus afiording the required safety, as any attempt to remove or alter the writing will at once become visible thereon.
- the requisite operations for the preparation of such paper are at the same time very simple and do not affect or complicate the ordinary process of manufacturing paper, as
- the invention is carried out in practice as follows:
- the paper material is colored with indigo, preferably with indigo from the steeping-vat or steeping-trough, and is mixed with a chromate that is insoluble in water and soluble in acidssuch as chromate of barium.
- the extent to which the latter is added depends upon the degree of blue-green to yellow-green coloration of the paper desired.
- paper so prepared dilute mineral acids effect wherein the paper material, after being 001- ored with indigo, is treated with chromates insoluble in water, but soluble in alcohol.
Landscapes
- Paper (AREA)
Description
UNITED STATES PATENT OFFICE;
GERHARD SCHREIBER, OF GHEMNITZ, SAXONY, GERMANY, ASSIGNOR TO DIE DIRECTION DER PATENTPAPIERFABRIK ZU PENIG, OF PENIG, SAXONY.
PROCESS OF MANUFACTURING SAFETY-PAPER FOR CHECKS, 80C.
SPECIFICATION forming part of Letters Patent 0. 322,130, dated July 14-, 1885.
Application filed March 16, 1885. (No specimens.)
Be it known that I, GERHARD SOHREIBER,
doctor of philosophy and chemist, a resident of the city of Ohemnitz, in the Kingdom of Saxony, and German Empire, have invented a certain new and useful Improvement in the Process of Manufacturing Safety-Paper for Checks, &c., of which the following is a specification.
This invention relates to the manufacture of paper that shall at once indicate anyalteration effected by chemical means of writing or other marks made thereon. The known methods for the production of such safety-paper either do not offer perfect security for the purpose required, on account of the chemical reagents employed therein, or they are of such a complicated nature as not to be practically available. According to the present invention the purpose aimed at is attained by manufacturing a colored paper of such a nature that the chemicals employed for removing writing or other marks in ink from the same, such as acids, chlorine, &c., will destroy or alter the color, the paper thus afiording the required safety, as any attempt to remove or alter the writing will at once become visible thereon. The requisite operations for the preparation of such paper are at the same time very simple and do not affect or complicate the ordinary process of manufacturing paper, as
the requisite chemicals need only be added to the paper material in the rag-engine.
The invention is carried out in practice as follows: The paper material is colored with indigo, preferably with indigo from the steeping-vat or steeping-trough, and is mixed with a chromate that is insoluble in water and soluble in acidssuch as chromate of barium. The extent to which the latter is added depends upon the degree of blue-green to yellow-green coloration of the paper desired. On
paper so prepared dilute mineral acids effect wherein the paper material, after being 001- ored with indigo, is treated with chromates insoluble in water, but soluble in alcohol.
In testimony whereof I have signed my name to this specification in the presence of two sub-.
scribing witnesses.
GERHARD SGHREIBER.
Witnesses:
ALBERT VIEwEs, OTTO REIoHoLD.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US322130A true US322130A (en) | 1885-07-14 |
Family
ID=2391268
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US322130D Expired - Lifetime US322130A (en) | saxony |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US322130A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3088841A (en) * | 1960-03-01 | 1963-05-07 | American Bank Note Co | Safety inks and documents |
| JPS514440B1 (en) * | 1967-02-20 | 1976-02-12 | ||
| US6045656A (en) * | 1998-12-21 | 2000-04-04 | Westvaco Corporation | Process for making and detecting anti-counterfeit paper |
| US6054021A (en) * | 1999-01-20 | 2000-04-25 | Westvaco Corporation | Process of manufacturing authenticatable paper products |
| WO2012101334A1 (en) | 2011-01-25 | 2012-08-02 | Honnorat Recherches & Services | Paper that cannot be forged using solvents |
| WO2013060947A1 (en) | 2011-10-26 | 2013-05-02 | Honnorat Recherches & Services | Security paper that cannot be falsified using redox agents |
-
0
- US US322130D patent/US322130A/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3088841A (en) * | 1960-03-01 | 1963-05-07 | American Bank Note Co | Safety inks and documents |
| JPS514440B1 (en) * | 1967-02-20 | 1976-02-12 | ||
| US6045656A (en) * | 1998-12-21 | 2000-04-04 | Westvaco Corporation | Process for making and detecting anti-counterfeit paper |
| US6054021A (en) * | 1999-01-20 | 2000-04-25 | Westvaco Corporation | Process of manufacturing authenticatable paper products |
| WO2012101334A1 (en) | 2011-01-25 | 2012-08-02 | Honnorat Recherches & Services | Paper that cannot be forged using solvents |
| US9057159B2 (en) | 2011-01-25 | 2015-06-16 | Honnorat Recherches & Services | Paper that cannot be forged using solvents |
| WO2013060947A1 (en) | 2011-10-26 | 2013-05-02 | Honnorat Recherches & Services | Security paper that cannot be falsified using redox agents |
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