JPS5661466A - Manufacture of pigmentary ink for writing tool - Google Patents

Manufacture of pigmentary ink for writing tool

Info

Publication number
JPS5661466A
JPS5661466A JP13653579A JP13653579A JPS5661466A JP S5661466 A JPS5661466 A JP S5661466A JP 13653579 A JP13653579 A JP 13653579A JP 13653579 A JP13653579 A JP 13653579A JP S5661466 A JPS5661466 A JP S5661466A
Authority
JP
Japan
Prior art keywords
manufacture
pigmentary
ink
dispersivity
stable
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
JP13653579A
Other languages
Japanese (ja)
Other versions
JPS629272B2 (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 JP13653579A priority Critical patent/JPS5661466A/en
Publication of JPS5661466A publication Critical patent/JPS5661466A/en
Publication of JPS629272B2 publication Critical patent/JPS629272B2/ja
Granted legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE: To manufacture a pigmentary ink having a stable dispersivity for a long period of time and scarcely causing clogging, by adding a polyhydric alcohol and an O/W type resin emulsion to a pigment dispersion deprived of coarse pigment particles by a centrifugal separator.
CONSTITUTION: A pigment dispersion, obtained by removing coarse pigment particles by means of a centrifugal separator at a centrifugal acceleration of 27,000G, is mixed with a polyhydric alcohol (e.g., 1,2-ethanediol) and/or its derivative (e.g., diethylene glycol dimethyl ether) and an O/W type resin emulsion (e.g., emulsions of an acrylic resin, vinyl acetate resin, etc.) as requisite components to obtain a pigmentary ink for writing tools which has a stable dispersivity for a long period of time and scarcely causes clogging.
COPYRIGHT: (C)1981,JPO&Japio
JP13653579A 1979-10-23 1979-10-23 Manufacture of pigmentary ink for writing tool Granted JPS5661466A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13653579A JPS5661466A (en) 1979-10-23 1979-10-23 Manufacture of pigmentary ink for writing tool

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13653579A JPS5661466A (en) 1979-10-23 1979-10-23 Manufacture of pigmentary ink for writing tool

Publications (2)

Publication Number Publication Date
JPS5661466A true JPS5661466A (en) 1981-05-26
JPS629272B2 JPS629272B2 (en) 1987-02-27

Family

ID=15177450

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13653579A Granted JPS5661466A (en) 1979-10-23 1979-10-23 Manufacture of pigmentary ink for writing tool

Country Status (1)

Country Link
JP (1) JPS5661466A (en)

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

Also Published As

Publication number Publication date
JPS629272B2 (en) 1987-02-27

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