JPS56163172A - Fluorescent ink composition for impregnation of white porous lead - Google Patents

Fluorescent ink composition for impregnation of white porous lead

Info

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
Application number
JP6755480A
Other languages
Japanese (ja)
Inventor
Masatoshi Abe
Shunyu Ogiwara
Toshiaki Okazaki
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TONBO ENPITSU KK
TONBO PENCIL
Original Assignee
TONBO ENPITSU KK
TONBO PENCIL
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by TONBO ENPITSU KK, TONBO PENCIL filed Critical TONBO ENPITSU KK
Priority to JP6755480A priority Critical patent/JPS56163172A/en
Publication of JPS56163172A publication Critical patent/JPS56163172A/en
Pending legal-status Critical Current

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
JP6755480A 1980-05-21 1980-05-21 Fluorescent ink composition for impregnation of white porous lead Pending JPS56163172A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (1)

* Cited by examiner, † Cited by third party
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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