JPS5611973A - Ink composition for ink jet recording - Google Patents

Ink composition for ink jet recording

Info

Publication number
JPS5611973A
JPS5611973A JP8742979A JP8742979A JPS5611973A JP S5611973 A JPS5611973 A JP S5611973A JP 8742979 A JP8742979 A JP 8742979A JP 8742979 A JP8742979 A JP 8742979A JP S5611973 A JPS5611973 A JP S5611973A
Authority
JP
Japan
Prior art keywords
direct black
direct
water
composition
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.)
Granted
Application number
JP8742979A
Other languages
Japanese (ja)
Other versions
JPS6155544B2 (en
Inventor
Tadashi Fujii
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.)
Ricoh Co Ltd
Original Assignee
Ricoh 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 Ricoh Co Ltd filed Critical Ricoh Co Ltd
Priority to JP8742979A priority Critical patent/JPS5611973A/en
Publication of JPS5611973A publication Critical patent/JPS5611973A/en
Publication of JPS6155544B2 publication Critical patent/JPS6155544B2/ja
Granted legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE: The titled ink composition, having improved dye solubility without clogging a nozzle even after a long period of down-time, and comprising a specific component which is a nonvolatile and wetting liquid as a water absorbing agent, p- toluenesulfonic acid and a specific water-soluble direct dye.
CONSTITUTION: A composition comprising (A) one or more water-soluble direct dyes selected from Direct Black 2 (C.I. No.22590), Direct Black 4 (C.I. No. 30245), Direct Black 19 (C.I. No.35255), Direct Black 38 (C.I. No.305235) and Direct Black 154, (B) an aliphatic polyhydric alcohol (alkyl ether derivative), e.g. polyethylene glycol-200, and (C) p-toluenesulfonic acid. The amounts of (A), (B) and (C) are 1W7wt%, 5W30wt% and 0.2W7wt% respectively.
EFFECT: Improved jet stability.
COPYRIGHT: (C)1981,JPO&Japio
JP8742979A 1979-07-12 1979-07-12 Ink composition for ink jet recording Granted JPS5611973A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8742979A JPS5611973A (en) 1979-07-12 1979-07-12 Ink composition for ink jet recording

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8742979A JPS5611973A (en) 1979-07-12 1979-07-12 Ink composition for ink jet recording

Publications (2)

Publication Number Publication Date
JPS5611973A true JPS5611973A (en) 1981-02-05
JPS6155544B2 JPS6155544B2 (en) 1986-11-28

Family

ID=13914617

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8742979A Granted JPS5611973A (en) 1979-07-12 1979-07-12 Ink composition for ink jet recording

Country Status (1)

Country Link
JP (1) JPS5611973A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57185366A (en) * 1981-05-08 1982-11-15 Ricoh Co Ltd Ink for ink jet recording
DE3330379A1 (en) * 1982-08-23 1984-02-23 Ricoh Co., Ltd., Tokyo AQUEOUS INK FOR INK JET PRINTING
DE3438421A1 (en) * 1983-10-19 1985-05-02 Canon K.K., Tokio/Tokyo RECORDING LIQUID

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021033688A1 (en) * 2019-08-22 2021-02-25 日本電産株式会社 Outer rotor-type motor

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57185366A (en) * 1981-05-08 1982-11-15 Ricoh Co Ltd Ink for ink jet recording
JPH022906B2 (en) * 1981-05-08 1990-01-19 Ricoh Kk
DE3330379A1 (en) * 1982-08-23 1984-02-23 Ricoh Co., Ltd., Tokyo AQUEOUS INK FOR INK JET PRINTING
DE3330379C2 (en) * 1982-08-23 1986-02-13 Ricoh Co., Ltd., Tokio/Tokyo Aqueous ink for ink jet printing
DE3438421A1 (en) * 1983-10-19 1985-05-02 Canon K.K., Tokio/Tokyo RECORDING LIQUID

Also Published As

Publication number Publication date
JPS6155544B2 (en) 1986-11-28

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