JPS57144546A - Photoreceptor - Google Patents
PhotoreceptorInfo
- Publication number
- JPS57144546A JPS57144546A JP2938281A JP2938281A JPS57144546A JP S57144546 A JPS57144546 A JP S57144546A JP 2938281 A JP2938281 A JP 2938281A JP 2938281 A JP2938281 A JP 2938281A JP S57144546 A JPS57144546 A JP S57144546A
- Authority
- JP
- Japan
- Prior art keywords
- fine powder
- photoreceptor
- color
- niobate
- ortho
- 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.)
- Pending
Links
- 108091008695 photoreceptors Proteins 0.000 title abstract 3
- 239000000843 powder Substances 0.000 abstract 3
- 239000006185 dispersion Substances 0.000 abstract 2
- 229920000642 polymer Polymers 0.000 abstract 2
- 229910052761 rare earth metal Inorganic materials 0.000 abstract 2
- 239000000758 substrate Substances 0.000 abstract 2
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 abstract 1
- 150000001875 compounds Chemical class 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- 239000007788 liquid Substances 0.000 abstract 1
- 230000007774 longterm Effects 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 229910052758 niobium Inorganic materials 0.000 abstract 1
- 239000010955 niobium Substances 0.000 abstract 1
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 abstract 1
- 229920001296 polysiloxane Polymers 0.000 abstract 1
- -1 rare earth compound Chemical class 0.000 abstract 1
- 229920003002 synthetic resin Polymers 0.000 abstract 1
- 239000000057 synthetic resin Substances 0.000 abstract 1
Classifications
-
- 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
- G03C1/72—Photosensitive compositions not covered by the groups G03C1/005 - G03C1/705
- G03C1/725—Photosensitive compositions not covered by the groups G03C1/005 - G03C1/705 containing inorganic compounds
Landscapes
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
- Optical Filters (AREA)
- Electrochromic Elements, Electrophoresis, Or Variable Reflection Or Absorption Elements (AREA)
Abstract
PURPOSE:To obtain a photoreceptor to be colored by irradiation of ultraviolet rays and to be decolored by heating or the like, and capable of being used repeatedly, by dispersing a fine powder of an ortho-niobate, a compound of niobium of rare earth elements having photochromism into a transparent film- forming polymer, and forming this dispersion layer on the surface of a substrate. CONSTITUTION:A fine powder of ortho-niobate, a rare earth compound, such as YNbO4 or EuNbO4 containing 0.01-0.1mol% PrNbO4, TbNbO4, or ErNbO4 based on the total composition is heated to 1,250-1,400 deg.C, and pulverized to 0.1-10mum size. This fine powder is dispersed into a transparent solution of a urethane or silicone type polymer, and the dispersion liquid is coated on a substrate, such as paper or synthetic resin film to form a 50-200mum thick photosensitive layer. This photoreceptor is colored from a pale color to a dark brown with ultraviolet rays, and retains this color for a long term. When it is irradiated with laser beams or heated to 100-200 deg.C, it returns to the initial color, and can be used repeatedly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2938281A JPS57144546A (en) | 1981-03-03 | 1981-03-03 | Photoreceptor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2938281A JPS57144546A (en) | 1981-03-03 | 1981-03-03 | Photoreceptor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS57144546A true JPS57144546A (en) | 1982-09-07 |
Family
ID=12274581
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2938281A Pending JPS57144546A (en) | 1981-03-03 | 1981-03-03 | Photoreceptor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57144546A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11344580A (en) * | 1998-03-31 | 1999-12-14 | Seiko Instruments Inc | Reversible discolorable composition and timepiece exterior part using the same |
| JP2002255673A (en) * | 2001-02-28 | 2002-09-11 | Gifu Prefecture | Ceramic product having color rendering property and colorant |
| WO2005019933A1 (en) * | 2003-08-26 | 2005-03-03 | Japan Science And Technology Agency | Method for producing functional polyimide fine particle, and rewritable memory material utilizing change in fluorescence characteristics caused by light irradiation or heat treatment |
| US7622411B2 (en) * | 2003-03-26 | 2009-11-24 | Mitsubishi Heavy Industries, Ltd. | Thermal barrier coating material |
-
1981
- 1981-03-03 JP JP2938281A patent/JPS57144546A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11344580A (en) * | 1998-03-31 | 1999-12-14 | Seiko Instruments Inc | Reversible discolorable composition and timepiece exterior part using the same |
| JP2002255673A (en) * | 2001-02-28 | 2002-09-11 | Gifu Prefecture | Ceramic product having color rendering property and colorant |
| US7622411B2 (en) * | 2003-03-26 | 2009-11-24 | Mitsubishi Heavy Industries, Ltd. | Thermal barrier coating material |
| WO2005019933A1 (en) * | 2003-08-26 | 2005-03-03 | Japan Science And Technology Agency | Method for producing functional polyimide fine particle, and rewritable memory material utilizing change in fluorescence characteristics caused by light irradiation or heat treatment |
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