JPS6311160B2 - - Google Patents
Info
- Publication number
- JPS6311160B2 JPS6311160B2 JP54152489A JP15248979A JPS6311160B2 JP S6311160 B2 JPS6311160 B2 JP S6311160B2 JP 54152489 A JP54152489 A JP 54152489A JP 15248979 A JP15248979 A JP 15248979A JP S6311160 B2 JPS6311160 B2 JP S6311160B2
- Authority
- JP
- Japan
- Prior art keywords
- printing
- color
- hidden
- printed
- ink
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M3/00—Printing processes to produce particular kinds of printed work, e.g. patterns
- B41M3/001—Printing processes to produce particular kinds of printed work, e.g. patterns using chemical colour-formers or chemical reactions, e.g. leuco dyes or acids
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Color Printing (AREA)
- Printing Methods (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15248979A JPS5675893A (en) | 1979-11-27 | 1979-11-27 | Latent print and development thereof |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15248979A JPS5675893A (en) | 1979-11-27 | 1979-11-27 | Latent print and development thereof |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5675893A JPS5675893A (en) | 1981-06-23 |
JPS6311160B2 true JPS6311160B2 (en, 2012) | 1988-03-11 |
Family
ID=15541585
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15248979A Granted JPS5675893A (en) | 1979-11-27 | 1979-11-27 | Latent print and development thereof |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5675893A (en, 2012) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6055234A (ja) * | 1983-09-05 | 1985-03-30 | Matsumoto Kosan Kk | 温度指示用セツト |
JPS60161190A (ja) * | 1984-02-01 | 1985-08-22 | Ricoh Co Ltd | 多色画像記録方法 |
US11396197B2 (en) * | 2019-06-19 | 2022-07-26 | Crayola Llc | Marking system for moldable substrates |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS51131711A (en) * | 1975-05-08 | 1976-11-16 | Chuo Senkou Kk | Color development method of nonnvisible printed section and printing object and coating device |
-
1979
- 1979-11-27 JP JP15248979A patent/JPS5675893A/ja active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS5675893A (en) | 1981-06-23 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US5290068A (en) | Document security method and system | |
US4227719A (en) | Protection system for documents | |
US4662651A (en) | Document protection using multicolor characters | |
US5395138A (en) | Security document verification system with pressure-rupturable microcapsules | |
EP0326303B1 (en) | Improved security for images formed by impact based systems | |
CA1106872A (en) | Document protection using colors below critical density of copier | |
EP0675809B1 (en) | Latent image printing process and apparatus and substrate therefor | |
US4681348A (en) | Financial document protection | |
JPS6311160B2 (en, 2012) | ||
JP2944861B2 (ja) | スクラッチ発色印刷方法及びスクラッチ発色印刷体 | |
JPH034545Y2 (en, 2012) | ||
JP3042311B2 (ja) | 感圧複写重合体 | |
JPH11105459A (ja) | 感熱記録用シート | |
JP3640409B2 (ja) | 減感処理が施された感圧複写帳票 | |
JP2000225770A (ja) | 偽造防止方法 | |
JPH036442Y2 (en, 2012) | ||
JPS5651383A (en) | Pressure sensitive copy paper | |
JP3013897B2 (ja) | 感圧記録紙用顕色剤シートとその製造方法、記録方法及び顕色剤組成物 | |
JP3539768B2 (ja) | 複写帳票組 | |
JP3908283B2 (ja) | 複写用紙 | |
US5750462A (en) | Latent image printing process and apparatus and substrate therefor | |
JP6589395B2 (ja) | 複写シートの真贋判定方法 | |
US2329143A (en) | Safety paper and method of making same | |
CA2149947C (en) | Heat sensitive system and use thereof | |
JPH02299891A (ja) | カードの真偽判定方法、及びカード上に画像を形成する方法 |