JPS56163172A - Fluorescent ink composition for impregnation of white porous lead - Google Patents
Fluorescent ink composition for impregnation of white porous leadInfo
- Publication number
- JPS56163172A JPS56163172A JP6755480A JP6755480A JPS56163172A JP S56163172 A JPS56163172 A JP S56163172A JP 6755480 A JP6755480 A JP 6755480A JP 6755480 A JP6755480 A JP 6755480A JP S56163172 A JPS56163172 A JP S56163172A
- Authority
- JP
- Japan
- Prior art keywords
- ink composition
- impregnation
- solvent
- white porous
- porous lead
- 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
- Inks, Pencil-Leads, Or Crayons (AREA)
Abstract
PURPOSE: The titled ink composition comprising a fluorescent dye, light resistance modifier, thickening agent and solvent.
CONSTITUTION: An ink composition is obtained by mixing (A) a pigment consisting of about 5W70pts.wt. fluorescent dye (e.g., fluorexein sodium or eosine) and about 0W60pts.wt. nonfluorescent dye, (B) about 0.1W20pts.wt. light resistance modifier (UV absorbent, e.g., "TOMISORP" manufactured by YOSHITOMI CO.) (C) about 1W40pts.wt. thickening agent (e.g., a mixture of phenylglycol and acetone) and (D) about 1W30pts.wt. org. solvent (e.g., a mixture of phenylglycol and ethanol). Then a colored lead giving a distinct letter and stably usable for a long time, is formed by the impregnation of white porous lead with said ink composition, followed by the volatilization of the low-volatile solvent.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6755480A JPS56163172A (en) | 1980-05-21 | 1980-05-21 | Fluorescent ink composition for impregnation of white porous lead |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6755480A JPS56163172A (en) | 1980-05-21 | 1980-05-21 | Fluorescent ink composition for impregnation of white porous lead |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS56163172A true JPS56163172A (en) | 1981-12-15 |
Family
ID=13348292
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6755480A Pending JPS56163172A (en) | 1980-05-21 | 1980-05-21 | Fluorescent ink composition for impregnation of white porous lead |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS56163172A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5595700A (en) * | 1991-05-02 | 1997-01-21 | Mitsubishi Pencil Kabushiki Kaisha | Non-baked color pencil leads and method for preparing same |
-
1980
- 1980-05-21 JP JP6755480A patent/JPS56163172A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5595700A (en) * | 1991-05-02 | 1997-01-21 | Mitsubishi Pencil Kabushiki Kaisha | Non-baked color pencil leads and method for preparing same |
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