GB399497A - Improvements in the manufacture of pigments - Google Patents

Improvements in the manufacture of pigments

Info

Publication number
GB399497A
GB399497A GB3612431A GB3612431A GB399497A GB 399497 A GB399497 A GB 399497A GB 3612431 A GB3612431 A GB 3612431A GB 3612431 A GB3612431 A GB 3612431A GB 399497 A GB399497 A GB 399497A
Authority
GB
United Kingdom
Prior art keywords
grinding
sodium
dodecyl
ester
sodium salt
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
GB3612431A
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.)
JOSEPH EDWARD CLAPHAM
Imperial Chemical Industries Ltd
Original Assignee
JOSEPH EDWARD CLAPHAM
Imperial Chemical Industries 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 JOSEPH EDWARD CLAPHAM, Imperial Chemical Industries Ltd filed Critical JOSEPH EDWARD CLAPHAM
Priority to GB3612431A priority Critical patent/GB399497A/en
Publication of GB399497A publication Critical patent/GB399497A/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

Landscapes

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

Abstract

Organic pigments are improved as regards colouring power and miscibility with drying-oils, water, &c. by grinding in the wet or dry state with a small proportion of a sulphuric ester of an alcohol having 10-20 carbon atoms in the molecule. The sodium salt of the ester may be used, and traces of caustic soda may be present during the grinding. The grinding under aqueous conditions of Monolite Fast Scarlet RNS, artificial indigo, and the azo-pigment obtained by combining diazotized 2 : 4-dinitro-aniline with b -naphthol is described, the products, if desired, being dried and then powdered. Stearyl or dodecyl sulphate, oleyl, stearyl, or cetyl sodium sulphate, and the sodium salt of the sulphuric ester of sperm oil alcohols, are specified as assistants. The Provisional Specification describes the grinding or kneading of pigments or aqueous pastes thereof with a small proportion of a sulphonic acid or sulphuric ester having in the molecule an aliphatic carbon chain of more than 8 carbon atoms, or its sodium or ammonium salt, cetyl sulphobenzyl ether or its sodium salt, dodecyl sodium sulphate, and dodecyl sulpho-acetate or its ammonium salt being specified.ALSO:Inorganic and organic pigments are improved as regards colouring power and miscibility with drying oils, water, &c. by grinding in the wet or dry state with a small proportion of a sulphuric ester of an alcohol having 10-20 carbon atoms in the molecule. The sodium salt of the ester may be used, and traces of caustic soda may be present during the grinding. The grinding may be effected in presence of a base such as barytes. The grinding under aqueous conditions of prussian blue, ultramarine, monolite Fast Scarlet RNS, artificial indigo, and the azo-pigment obtained by combining diazotized 2 : 4-dinitroaniline with b -naphthol is described, the products, if desired, being dried and then powdered. Stearyl or dodecyl sulphate, oleyl, stearyl or cetyl sodium sulphate, and the sodium salt of the sulphuric ester of sperm oil alcohols, are specified as assistants. The Provisional Specification describes the grinding or kneading of pigments or aqueous pastes thereof with a small proportion of a sulphonic acid or sulphuric ester having in the molecule an aliphatic chain of more than 8 carbon atoms, or its sodium or ammonium salt, cetyl sulphobenzyl ether or its sodium salt, dodecyl sodium sulphate, and dodecyl sulpho-acetate or its ammonium salt being specified.
GB3612431A 1931-12-31 1931-12-31 Improvements in the manufacture of pigments Expired GB399497A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3612431A GB399497A (en) 1931-12-31 1931-12-31 Improvements in the manufacture of pigments

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3612431A GB399497A (en) 1931-12-31 1931-12-31 Improvements in the manufacture of pigments

Publications (1)

Publication Number Publication Date
GB399497A true GB399497A (en) 1933-10-02

Family

ID=10385212

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3612431A Expired GB399497A (en) 1931-12-31 1931-12-31 Improvements in the manufacture of pigments

Country Status (1)

Country Link
GB (1) GB399497A (en)

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