GB1087004A - Process for reducing the particle size of phthalocyanine and quinacridone pigments - Google Patents

Process for reducing the particle size of phthalocyanine and quinacridone pigments

Info

Publication number
GB1087004A
GB1087004A GB1640666A GB1640666A GB1087004A GB 1087004 A GB1087004 A GB 1087004A GB 1640666 A GB1640666 A GB 1640666A GB 1640666 A GB1640666 A GB 1640666A GB 1087004 A GB1087004 A GB 1087004A
Authority
GB
United Kingdom
Prior art keywords
pigment
organic liquid
phthalocyanine
dry
specified
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
GB1640666A
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.)
EIDP Inc
Original Assignee
EI Du Pont de Nemours and Co
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 EI Du Pont de Nemours and Co filed Critical EI Du Pont de Nemours and Co
Publication of GB1087004A publication Critical patent/GB1087004A/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
    • C09B48/00—Quinacridones
    • 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
    • C09B67/0032—Treatment of phthalocyanine pigments

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Nitrogen Condensed Heterocyclic Rings (AREA)
  • Developing Agents For Electrophotography (AREA)

Abstract

The particle size of quinacridone pigments and phthalocyanine pigments containing statistically not more than one substituent per molecule is reduced by dry-milling the pigment in apparatus having attrition and shearing action, effecting contact between the dry-milled pigment obtained and a water emulsion of an organic liquid which is an aliphatic, halogenated aliphatic or saturated cycloaliphatic hydrocarbon boiling between 35 DEG C. and 85 DEG C., the amount of organic liquid used being at least 0.1 part by weight per part of pigment and thereafter removing the organic liquid and recovering the pigment. Specified quinacridone pigments are 4,11-dichloroquinacridone, 2,9 - dichloroquinacridone, 2,9 - dimethylquinacridone, 4,11 - difluoroquinacridone and 2,9-dimethoxyquinacridone. Specified phthalocyanine pigments are metal-free phthalocyanine, Cu-phthalocyanine, phthalocyanines of the metals Ni, Co, Fe, Mg, Pb and V; and Cuphthalocyanine containing a small amount of chlorine. Specified organic liquids are CCl4, CHCl3, CH2Cl2, C6H14, cyclohexane an fluorinated hydrocarbons. Examples of the above process are given.ALSO:The particle size of quinacridone pigments and phthalocyanine pigments containing statistically not more than one substituent per molecule is reduced by dry-milling the pigment in apparatus having attrition and shearing action, effecting contact between the dry milled pigment obtained and a water emulsion of an organic liquid which is an aliphatic halogenated aliphatic or saturated cycloaliphatic hydrocarbon boiling between 35 DEG C and 85 DEG C, the amount of organic liquid used being at least 0.1 part by weight per part of pigment, and thereafter removing the organic liquid and recovering the pigment. Specified organic liquids are CCl4, CHCl3,CH2Cl2,C6H14, cyclohexane and fluorinated hydrocarbons. Examples of the process are given.
GB1640666A 1965-04-15 1966-04-14 Process for reducing the particle size of phthalocyanine and quinacridone pigments Expired GB1087004A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US44824065A 1965-04-15 1965-04-15

Publications (1)

Publication Number Publication Date
GB1087004A true GB1087004A (en) 1967-10-11

Family

ID=23779526

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1640666A Expired GB1087004A (en) 1965-04-15 1966-04-14 Process for reducing the particle size of phthalocyanine and quinacridone pigments

Country Status (3)

Country Link
CH (1) CH460994A (en)
DE (1) DE1290643B (en)
GB (1) GB1087004A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3980488A (en) * 1972-03-07 1976-09-14 The Sherwin-Williams Company Pigment conditioning and vehicle flushing process
US4104277A (en) * 1976-02-19 1978-08-01 Ciba-Geigy Corporation Process for preparing an alpha or beta form copper phthalocyanine pigment

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3980488A (en) * 1972-03-07 1976-09-14 The Sherwin-Williams Company Pigment conditioning and vehicle flushing process
US4104277A (en) * 1976-02-19 1978-08-01 Ciba-Geigy Corporation Process for preparing an alpha or beta form copper phthalocyanine pigment

Also Published As

Publication number Publication date
DE1290643B (en) 1969-03-13
CH460994A (en) 1968-08-15

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