JPS5679165A - Preparation of pigment ink for writing utensils - Google Patents

Preparation of pigment ink for writing utensils

Info

Publication number
JPS5679165A
JPS5679165A JP15613379A JP15613379A JPS5679165A JP S5679165 A JPS5679165 A JP S5679165A JP 15613379 A JP15613379 A JP 15613379A JP 15613379 A JP15613379 A JP 15613379A JP S5679165 A JPS5679165 A JP S5679165A
Authority
JP
Japan
Prior art keywords
pigment
ink
acceleration
pigment ink
water
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
JP15613379A
Other languages
Japanese (ja)
Other versions
JPS629273B2 (en
Inventor
Kazuo Iwata
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 JP15613379A priority Critical patent/JPS5679165A/en
Publication of JPS5679165A publication Critical patent/JPS5679165A/en
Publication of JPS629273B2 publication Critical patent/JPS629273B2/ja
Granted legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE: To remove coares particles and agglomerates, etc. in a composition and to obtain the titled ink causing a little clogging phenomena with time, by centrifuging pigment ink comprising pigment, an oil-in-water type resin emulsion, water, etc. at a specific centrifugal acceleration.
CONSTITUTION: Pigment ink comprising (A) pigment (e.g., C. I. Pigment yellow 1, etc.), (B) and oil-in-water type resin emulsion preferably, acrylic, vinyl acetate, styrene-butadiene), (C) polyfunctional alcohol and/or its derivative (e.g., 1,2- ehanediol, etc.), and (D) water is centrifuged at a centrifugal acceleration not more than 25,000 acceleration of gravity (G) (preferably 5,000W21,000 G and a product of the centrigual acceleration and centrifugation time 100,000W2,000,000 G minutes), to give the desired pigment ink. Amount of the ingredients A, B, C, and D are preferably 2W30wt%, 1W25wt%, 1W25wt%, and 20W90wt% based on total amount of untreated ink respectively.
COPYRIGHT: (C)1981,JPO&Japio
JP15613379A 1979-11-30 1979-11-30 Preparation of pigment ink for writing utensils Granted JPS5679165A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15613379A JPS5679165A (en) 1979-11-30 1979-11-30 Preparation of pigment ink for writing utensils

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15613379A JPS5679165A (en) 1979-11-30 1979-11-30 Preparation of pigment ink for writing utensils

Publications (2)

Publication Number Publication Date
JPS5679165A true JPS5679165A (en) 1981-06-29
JPS629273B2 JPS629273B2 (en) 1987-02-27

Family

ID=15621036

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15613379A Granted JPS5679165A (en) 1979-11-30 1979-11-30 Preparation of pigment ink for writing utensils

Country Status (1)

Country Link
JP (1) JPS5679165A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58141256A (en) * 1982-02-16 1983-08-22 Pilot Ink Co Ltd Aqueous pigment ink for marking pen and preparation thereof
JPS59120667A (en) * 1982-12-27 1984-07-12 Pentel Kk Water-base pigment ink

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002097387A (en) * 2000-09-21 2002-04-02 Jsr Corp Method of preparation for aqueous dispersion of inorganic particles

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS48101026A (en) * 1972-03-31 1973-12-20
JPS49101963A (en) * 1973-01-31 1974-09-26
JPS5410023A (en) * 1977-06-22 1979-01-25 Dainichiseika Color Chem Aqueous ink composition for writing instrument

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS48101026A (en) * 1972-03-31 1973-12-20
JPS49101963A (en) * 1973-01-31 1974-09-26
JPS5410023A (en) * 1977-06-22 1979-01-25 Dainichiseika Color Chem Aqueous ink composition for writing instrument

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58141256A (en) * 1982-02-16 1983-08-22 Pilot Ink Co Ltd Aqueous pigment ink for marking pen and preparation thereof
JPH0341512B2 (en) * 1982-02-16 1991-06-24
JPS59120667A (en) * 1982-12-27 1984-07-12 Pentel Kk Water-base pigment ink
JPH0465111B2 (en) * 1982-12-27 1992-10-19 Pentel Kk

Also Published As

Publication number Publication date
JPS629273B2 (en) 1987-02-27

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