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GB1249912A - Process for preparing pigment compositions - Google Patents

Process for preparing pigment compositions

Info

Publication number
GB1249912A
GB1249912A GB26669A GB26669A GB1249912A GB 1249912 A GB1249912 A GB 1249912A GB 26669 A GB26669 A GB 26669A GB 26669 A GB26669 A GB 26669A GB 1249912 A GB1249912 A GB 1249912A
Authority
GB
United Kingdom
Prior art keywords
pigment
casein
sodium
carrier
caseinate
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
GB26669A
Inventor
M Dukes
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.)
Imperial Chemical Industries Ltd
Original Assignee
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 Imperial Chemical Industries Ltd filed Critical Imperial Chemical Industries Ltd
Publication of GB1249912A publication Critical patent/GB1249912A/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
    • C09B67/0071—Process features in the making of dyestuff preparations; Dehydrating agents; Dispersing agents; Dustfree compositions
    • C09B67/0092—Dyes in solid form

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Nitrogen Condensed Heterocyclic Rings (AREA)
  • Pigments, Carbon Blacks, Or Wood Stains (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)

Abstract

1,249,912. Pigment compositions from aqueous dispersions. N. P. KINARIWALA PRIVATE Ltd. 2 Jan., 1969, No. 266/69. Heading C4A. Pigment compositions which are readily dispersible in aqueous media are obtained by adding to an aqueous dispersion of a pigment, a carrier selected from casein, animal glue, gelatin, sodium alginate, or a derivative thereof, precipitating the carrier and pigment by adjusting the pH of the dispersion to the isoelectric point of the carrier, separating the carrier and pigment from the aqueous phase and, if desired, recovering a dried powder therefrom. The precipitating agent may be an organic or mineral inorganic acid or salt, or a mixture thereof. The process is applicable to numerous water-insoluble organic and inorganic pigments. In examples, carriers used include sodium and potassium caseinate, sodium nitro caseinate, sodium salts of halogenated casein derivatives, of carbamide casein, and of casein condensation products with ethylene or butylene oxide, sodium caseinate plus glue or gelatine, or glue or gelatine alone or with urea. Acetic acid is a specified precipitant. Conventional dispersants, e.g. lignin sulphonate or naphthalene sulphonic acid/formaldehyde condensates, and preservatives, e.g. salicylic or benzoic acids or phenol and/or their derivatives, are optionally present. The process may be used to recover pigments from waste liquors, as well as to modify the properties of dry pigments.
GB26669A 1969-05-01 1969-01-02 Process for preparing pigment compositions Expired GB1249912A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2226669 1969-05-01

Publications (1)

Publication Number Publication Date
GB1249912A true GB1249912A (en) 1971-10-13

Family

ID=10176594

Family Applications (1)

Application Number Title Priority Date Filing Date
GB26669A Expired GB1249912A (en) 1969-05-01 1969-01-02 Process for preparing pigment compositions

Country Status (5)

Country Link
AT (2) AT292699B (en)
CS (1) CS163197B2 (en)
GB (1) GB1249912A (en)
PL (2) PL80662B1 (en)
SU (1) SU432719A3 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000047681A1 (en) * 1999-02-09 2000-08-17 Bayer Aktiengesellschaft Solid pigment preparations
GB2385594A (en) * 1999-02-09 2003-08-27 Bayer Ag Solid pigment preparations

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000047681A1 (en) * 1999-02-09 2000-08-17 Bayer Aktiengesellschaft Solid pigment preparations
GB2363127A (en) * 1999-02-09 2001-12-12 Bayer Ag Solid pigment preparations
US6596073B1 (en) 1999-02-09 2003-07-22 Bayer Aktiengesellschaft Solid pigment preparations
GB2363127B (en) * 1999-02-09 2003-08-13 Bayer Ag Solid pigment preparations
GB2385594A (en) * 1999-02-09 2003-08-27 Bayer Ag Solid pigment preparations
GB2385594B (en) * 1999-02-09 2003-10-08 Bayer Ag Solid pigment prepartions

Also Published As

Publication number Publication date
CS163197B2 (en) 1975-08-29
AT292696B (en) 1971-09-10
SU432719A3 (en) 1974-06-15
PL80664B1 (en) 1975-08-30
PL80662B1 (en) 1975-08-30
AT292699B (en) 1971-09-10

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