JPS5554382A - Preparation of fluorescent material coated with pigment - Google Patents
Preparation of fluorescent material coated with pigmentInfo
- Publication number
- JPS5554382A JPS5554382A JP8121078A JP8121078A JPS5554382A JP S5554382 A JPS5554382 A JP S5554382A JP 8121078 A JP8121078 A JP 8121078A JP 8121078 A JP8121078 A JP 8121078A JP S5554382 A JPS5554382 A JP S5554382A
- Authority
- JP
- Japan
- Prior art keywords
- red
- pigment
- preparation
- fluorescent material
- material coated
- 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.)
- Granted
Links
Landscapes
- Luminescent Compositions (AREA)
Abstract
PURPOSE: To prepare red phosphorescent particles uniformly coated with red pigment particles, by forming α-Fe2O3 red pigment particles in the presence of red phosphorescent particles.
CONSTITUTION: Oxygen is introduced into a dispersion of a red phosphorescent material and chemically precipitated Fe(OH)2, to oxdize the Fe(OH)2 to α-Fe(OH)3. After separating the phosphorescent material and α-Fe(OH)3, the mixture is calcined at 250W750°C in an oxidizing atmosphere, and the α-FeO(OH) attached to the surface of the red phosphorescent material is converted to red oxide (α-Fe2O3).
USE: Cathode-ray tube for color TV.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP53081210A JPS598380B2 (en) | 1978-07-04 | 1978-07-04 | Manufacturing method of pigmented phosphor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP53081210A JPS598380B2 (en) | 1978-07-04 | 1978-07-04 | Manufacturing method of pigmented phosphor |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5554382A true JPS5554382A (en) | 1980-04-21 |
JPS598380B2 JPS598380B2 (en) | 1984-02-24 |
Family
ID=13740116
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP53081210A Expired JPS598380B2 (en) | 1978-07-04 | 1978-07-04 | Manufacturing method of pigmented phosphor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS598380B2 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5545712A (en) * | 1978-09-27 | 1980-03-31 | Hitachi Ltd | Manufacture of pigment-adhered red luminescent fluophor |
EP0599407A2 (en) * | 1992-11-26 | 1994-06-01 | Philips Patentverwaltung GmbH | Coating process of red luminescent phosphor particle with hematite |
EP0894842A1 (en) * | 1997-08-02 | 1999-02-03 | Philips Patentverwaltung GmbH | Manufacture of a heamatite coated phosphor |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS534463A (en) * | 1976-07-02 | 1978-01-17 | Hitachi Ltd | Color receiving tube |
-
1978
- 1978-07-04 JP JP53081210A patent/JPS598380B2/en not_active Expired
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS534463A (en) * | 1976-07-02 | 1978-01-17 | Hitachi Ltd | Color receiving tube |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5545712A (en) * | 1978-09-27 | 1980-03-31 | Hitachi Ltd | Manufacture of pigment-adhered red luminescent fluophor |
EP0599407A2 (en) * | 1992-11-26 | 1994-06-01 | Philips Patentverwaltung GmbH | Coating process of red luminescent phosphor particle with hematite |
EP0599407A3 (en) * | 1992-11-26 | 1994-07-27 | Philips Patentverwaltung | Coating process of red luminescent phosphor particle with hematite. |
US5387436A (en) * | 1992-11-26 | 1995-02-07 | U.S. Philips Corporation | Method of coating red-luminescing phosphor particles with hematite |
EP0894842A1 (en) * | 1997-08-02 | 1999-02-03 | Philips Patentverwaltung GmbH | Manufacture of a heamatite coated phosphor |
Also Published As
Publication number | Publication date |
---|---|
JPS598380B2 (en) | 1984-02-24 |
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