CH476581A - Chromogenic compound recording sheet - Google Patents
Chromogenic compound recording sheetInfo
- Publication number
- CH476581A CH476581A CH32967A CH32967A CH476581A CH 476581 A CH476581 A CH 476581A CH 32967 A CH32967 A CH 32967A CH 32967 A CH32967 A CH 32967A CH 476581 A CH476581 A CH 476581A
- Authority
- CH
- Switzerland
- Prior art keywords
- recording sheet
- chromogenic compound
- compound recording
- chromogenic
- sheet
- Prior art date
Links
- 239000003593 chromogenic compound Substances 0.000 title 1
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
- B41M5/26—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used
-
- 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
- B41M5/26—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used
- B41M5/28—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used using thermochromic compounds or layers containing liquid crystals, microcapsules, bleachable dyes or heat- decomposable compounds, e.g. gas- liberating
- B41M5/282—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used using thermochromic compounds or layers containing liquid crystals, microcapsules, bleachable dyes or heat- decomposable compounds, e.g. gas- liberating using thermochromic compounds
- B41M5/284—Organic thermochromic compounds
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
- G03C1/00—Photosensitive materials
- G03C1/685—Compositions containing spiro-condensed pyran compounds or derivatives thereof, as photosensitive substances
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- General Physics & Mathematics (AREA)
- Heat Sensitive Colour Forming Recording (AREA)
- Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US52032566A | 1966-01-13 | 1966-01-13 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH476581A true CH476581A (en) | 1969-08-15 |
Family
ID=24072112
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH32967A CH476581A (en) | 1966-01-13 | 1967-01-09 | Chromogenic compound recording sheet |
Country Status (5)
Country | Link |
---|---|
US (1) | US3421894A (en) |
BE (1) | BE692252A (en) |
CH (1) | CH476581A (en) |
DE (1) | DE1671563B2 (en) |
GB (1) | GB1109554A (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3715212A (en) * | 1970-12-07 | 1973-02-06 | Rca Corp | Photochromic display and storage device and method of operation thereof |
US4533567A (en) * | 1983-05-24 | 1985-08-06 | Ncr Corporation | Carbonless paper coating formulation |
GB8432563D0 (en) * | 1984-12-21 | 1985-02-06 | Banks P J | Apparatus for handling information |
US4960679A (en) * | 1985-01-31 | 1990-10-02 | Canon Kabushiki Kaisha | Image forming device |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL214309A (en) * | 1956-02-06 | |||
US3016308A (en) * | 1957-08-06 | 1962-01-09 | Moore Business Forms Inc | Recording paper coated with microscopic capsules of coloring material, capsules and method of making |
US2949381A (en) * | 1958-04-04 | 1960-08-16 | Steinhardt Amos | Duplicating sheet coated with a colorless waxy transfer material |
US3328167A (en) * | 1959-08-10 | 1967-06-27 | Minnesota Mining & Mfg | Copy-paper |
NL259795A (en) * | 1960-01-08 | |||
US3141404A (en) * | 1961-04-12 | 1964-07-21 | Columbia Ribbon & Carbon | Novel imaging process |
BE622029A (en) * | 1961-09-18 | |||
NL128266C (en) * | 1961-10-05 |
-
1966
- 1966-01-13 US US520325A patent/US3421894A/en not_active Expired - Lifetime
- 1966-11-04 GB GB49555/66A patent/GB1109554A/en not_active Expired
-
1967
- 1967-01-06 BE BE692252D patent/BE692252A/xx not_active IP Right Cessation
- 1967-01-09 CH CH32967A patent/CH476581A/en not_active IP Right Cessation
- 1967-01-12 DE DE1967N0029816 patent/DE1671563B2/en active Granted
Also Published As
Publication number | Publication date |
---|---|
DE1671563A1 (en) | 1971-09-30 |
GB1109554A (en) | 1968-04-10 |
DE1671563B2 (en) | 1976-09-30 |
US3421894A (en) | 1969-01-14 |
BE692252A (en) | 1967-06-16 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PL | Patent ceased |