JPS56161490A - Production of pigment-deposited phosphor - Google Patents
Production of pigment-deposited phosphorInfo
- Publication number
- JPS56161490A JPS56161490A JP6404180A JP6404180A JPS56161490A JP S56161490 A JPS56161490 A JP S56161490A JP 6404180 A JP6404180 A JP 6404180A JP 6404180 A JP6404180 A JP 6404180A JP S56161490 A JPS56161490 A JP S56161490A
- Authority
- JP
- Japan
- Prior art keywords
- pigment
- deposited
- coated
- polyacrylate
- phosphor
- 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
Landscapes
- Luminescent Compositions (AREA)
Abstract
PURPOSE: To obtain a pigment-deposited phosphor which exhibits sufficient contrast effect and in which a lowering in brightness is slight, by a method wherein the surface of a phosphor particle is coated with a polyacrylate ester having a low second-order transition point, a pigment is deposited on the polyacrylate-coated surface, and then the pigment-deposited surface is coated with a polyacrylate ester having a high second-order transition point.
CONSTITUTION: The surface of a phosphor particle is coated with a polyacrylate ester having a second-order transition point (Tg) of -10°C or lower in an amount of 0.01W0.03wt% based on the whole weight of the phosphor particle. A pigment is deposited on the polyacrylate-coated surface. Further, the pigment-deposited surface is coated with a polyacrylate ester having a second-order transition point (Tg) of 0W20°C in an amount of 0.01W0.03wt% based on the whole weight of the phosphor particle. When a polyacrylate ester having a relatively high Tg is used, the adhesive force for the pigment becomes poor, contrast effect is insufficient, the average particle diameter of the product is small and agglomeration becomes poor. On the contray, when a polyacrylate having a low Tg is used, the adhesive force to the pigment becomes greater, and contrast effect becomes better. Since agglomeration becomes better, there can be obtd. an excellent pigment-deposited phosphor.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6404180A JPS56161490A (en) | 1980-05-16 | 1980-05-16 | Production of pigment-deposited phosphor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6404180A JPS56161490A (en) | 1980-05-16 | 1980-05-16 | Production of pigment-deposited phosphor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS56161490A true JPS56161490A (en) | 1981-12-11 |
Family
ID=13246625
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6404180A Pending JPS56161490A (en) | 1980-05-16 | 1980-05-16 | Production of pigment-deposited phosphor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS56161490A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01313587A (en) * | 1988-04-25 | 1989-12-19 | Gte Prod Corp | Method for imparting non-coagulation capacity to silver activated zinc sulfide fluorescent body |
| JPH0312474A (en) * | 1989-06-05 | 1991-01-21 | Gte Prod Corp | Bonding coloring agent particles to fludrescent material particles |
| WO2000032716A1 (en) * | 1998-11-27 | 2000-06-08 | Nittetsu Mining Co., Ltd. | Fluorescent or phosphorescent composition |
-
1980
- 1980-05-16 JP JP6404180A patent/JPS56161490A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01313587A (en) * | 1988-04-25 | 1989-12-19 | Gte Prod Corp | Method for imparting non-coagulation capacity to silver activated zinc sulfide fluorescent body |
| JPH0312474A (en) * | 1989-06-05 | 1991-01-21 | Gte Prod Corp | Bonding coloring agent particles to fludrescent material particles |
| WO2000032716A1 (en) * | 1998-11-27 | 2000-06-08 | Nittetsu Mining Co., Ltd. | Fluorescent or phosphorescent composition |
| US6666991B1 (en) | 1998-11-27 | 2003-12-23 | Nittetsu Mining Co., Ltd. | Fluorescent or phosphorescent composition |
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