JPS56133379A - Aqueous ink - Google Patents

Aqueous ink

Info

Publication number
JPS56133379A
JPS56133379A JP3795980A JP3795980A JPS56133379A JP S56133379 A JPS56133379 A JP S56133379A JP 3795980 A JP3795980 A JP 3795980A JP 3795980 A JP3795980 A JP 3795980A JP S56133379 A JPS56133379 A JP S56133379A
Authority
JP
Japan
Prior art keywords
aqueous ink
acid
colorant
formalin condensate
ink
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
JP3795980A
Other languages
Japanese (ja)
Inventor
Denkichi Sasage
Kunihiko Otaguro
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.)
Pentel Co Ltd
Original Assignee
Pentel Co Ltd
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 Pentel Co Ltd filed Critical Pentel Co Ltd
Priority to JP3795980A priority Critical patent/JPS56133379A/en
Publication of JPS56133379A publication Critical patent/JPS56133379A/en
Pending legal-status Critical Current

Links

Landscapes

  • Inks, Pencil-Leads, Or Crayons (AREA)

Abstract

PURPOSE: Aqueous ink suitable for fountain pens, signature pens, drawing, etc., having improved dissolution stability and water resistance, comprising a formalin condensate of acid dy shown by a specific formula as a colorant.
CONSTITUTION: (A) Preferably 1W20wt% formalin condensate of an acid dye (preferably, C.I. Acid Yellow 98, C.I. Acid Orange 41, etc.) shown by the formula (A is an acid dye containing one sulfone group in its molecule; n is 0W5) as a colorant is blended with (B) preferably 10W60wt% aqueous ink solvent (e.g., diethylene glycol, etc.), and (C) preferably 40W80wt% water as a main solvent, to give the desired aqueous ink. A rust preventive, e.g., benzotriazole, etc. and an antiseptic, e.g., potassium sorbate, etc. may be added to the ink, if necessary.
COPYRIGHT: (C)1981,JPO&Japio
JP3795980A 1980-03-25 1980-03-25 Aqueous ink Pending JPS56133379A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3795980A JPS56133379A (en) 1980-03-25 1980-03-25 Aqueous ink

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3795980A JPS56133379A (en) 1980-03-25 1980-03-25 Aqueous ink

Publications (1)

Publication Number Publication Date
JPS56133379A true JPS56133379A (en) 1981-10-19

Family

ID=12512088

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3795980A Pending JPS56133379A (en) 1980-03-25 1980-03-25 Aqueous ink

Country Status (1)

Country Link
JP (1) JPS56133379A (en)

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