GB1072702A - Improvements in or relating to the treatment of pigments - Google Patents

Improvements in or relating to the treatment of pigments

Info

Publication number
GB1072702A
GB1072702A GB1896364A GB1896364A GB1072702A GB 1072702 A GB1072702 A GB 1072702A GB 1896364 A GB1896364 A GB 1896364A GB 1896364 A GB1896364 A GB 1896364A GB 1072702 A GB1072702 A GB 1072702A
Authority
GB
United Kingdom
Prior art keywords
pigment
surfactants
incorporated
pigments
cationic
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.)
Expired
Application number
GB1896364A
Inventor
James Hossack
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.)
Geigy Co Ltd
Original Assignee
Geigy 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 Geigy Co Ltd filed Critical Geigy Co Ltd
Priority to GB1896364A priority Critical patent/GB1072702A/en
Publication of GB1072702A publication Critical patent/GB1072702A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B67/00—Influencing the physical, e.g. the dyeing or printing properties of dyestuffs without chemical reactions, e.g. by treating with solvents grinding or grinding assistants, coating of pigments or dyes; Process features in the making of dyestuff preparations; Dyestuff preparations of a special physical nature, e.g. tablets, films
    • C09B67/0001—Post-treatment of organic pigments or dyes
    • C09B67/0004—Coated particulate pigments or dyes
    • C09B67/0008—Coated particulate pigments or dyes with organic coatings

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Pigments, Carbon Blacks, Or Wood Stains (AREA)

Abstract

A process for treating a pigment for incorporation into surface coating compositions comprises precipitating the pigment in the presence of two surfactants, or after-treating a slurry of the pigment with two surfactants, one of the surfactants being cationic and the other anionic, and both having a surface tension of not more than 38.5 dynes per cm. in a 0.2% by weight aqueous solution at 25 DEG C. Suitable pigment slurries for the second embodiment contain 1-20% by weight pigment. The cationic surfactant may be a water-soluble amine salt of a straight or branched-chain C12-C20 amine with an inorganic or organic acid M.W. less than 150, e.g. a rosin acid amine. The anionic surfactant may be an alkyl aryl sulphonic acid or sulphonate where the alkyl is straight or branched-chain C10-C14, particularly dodecylbenzene sulphonic acid or sulphonate. Treated pigments which are exemplified are organic violets, yellows and reds characterized by Colour Index Nos, and, in Example 7, an azo pigment produced in situ from m-nitro-p-toluidine and b -naphthol. The treated pigments may be incorporated into nitrocellulose or zinc resinate gravure inks, a polyamide printing ink, or a tint lithographic varnish mediumALSO:Pigments treated to improve their flow, gloss retention, or dispersibility by means of a cationic plus an anionic surfactant possessing surface tensions not more than 38.5 dynes per cm. in a 0.2% wt. aqueous solution at 25 DEG C. may then be incorporated into an alkyd resin paint medium. In Examples 7, 8 an azo pigment and a red pigment, C.I. Pigment Red 3 respectively, are incorporated into a medium based on a long oil linseed penta-alkyd resin containing 70% oil base and 20% phthalic anhydride.
GB1896364A 1964-05-07 1964-05-07 Improvements in or relating to the treatment of pigments Expired GB1072702A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1896364A GB1072702A (en) 1964-05-07 1964-05-07 Improvements in or relating to the treatment of pigments

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1896364A GB1072702A (en) 1964-05-07 1964-05-07 Improvements in or relating to the treatment of pigments

Publications (1)

Publication Number Publication Date
GB1072702A true GB1072702A (en) 1967-06-21

Family

ID=10121451

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1896364A Expired GB1072702A (en) 1964-05-07 1964-05-07 Improvements in or relating to the treatment of pigments

Country Status (1)

Country Link
GB (1) GB1072702A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5182317A (en) * 1975-01-17 1976-07-19 Masayoshi Sakakibara IBUNSANSEIRYUJOKONJOSOSEIBUTSUOYOBISONOSEIHO
US4265810A (en) * 1978-10-26 1981-05-05 E. I. Du Pont De Nemours And Company Process for recovering zwitterionic diazonium salts by aggregation
US4664715A (en) * 1984-09-27 1987-05-12 Basf Aktiengesellschaft Preparation of lakes having improved performance characteristics
EP0272649A2 (en) * 1986-12-23 1988-06-29 Kao Corporation Spherical fine particulate pigment and process for preparing the same
US6793724B2 (en) * 2001-09-17 2004-09-21 Brother Kogyo Kabushiki Kaisha Ink for ink-jet recording and color ink set

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5182317A (en) * 1975-01-17 1976-07-19 Masayoshi Sakakibara IBUNSANSEIRYUJOKONJOSOSEIBUTSUOYOBISONOSEIHO
JPS52970B2 (en) * 1975-01-17 1977-01-11
US4265810A (en) * 1978-10-26 1981-05-05 E. I. Du Pont De Nemours And Company Process for recovering zwitterionic diazonium salts by aggregation
US4664715A (en) * 1984-09-27 1987-05-12 Basf Aktiengesellschaft Preparation of lakes having improved performance characteristics
EP0272649A2 (en) * 1986-12-23 1988-06-29 Kao Corporation Spherical fine particulate pigment and process for preparing the same
EP0272649A3 (en) * 1986-12-23 1991-11-13 Kao Corporation Spherical fine particulate pigment and process for preparing the same
US6793724B2 (en) * 2001-09-17 2004-09-21 Brother Kogyo Kabushiki Kaisha Ink for ink-jet recording and color ink set

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