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GB1358270A - Purification of basic oxyzine dyestuffs - Google Patents

Purification of basic oxyzine dyestuffs

Info

Publication number
GB1358270A
GB1358270A GB5674471A GB5674471A GB1358270A GB 1358270 A GB1358270 A GB 1358270A GB 5674471 A GB5674471 A GB 5674471A GB 5674471 A GB5674471 A GB 5674471A GB 1358270 A GB1358270 A GB 1358270A
Authority
GB
United Kingdom
Prior art keywords
dyestuff
surface active
active agent
basic
dyestuffs
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
GB5674471A
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
Priority to GB5674471A priority Critical patent/GB1358270A/en
Priority to NL7216598A priority patent/NL7216598A/xx
Publication of GB1358270A publication Critical patent/GB1358270A/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
    • C09B67/0075—Preparations with cationic dyes
    • 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
    • C09B19/00—Oxazine dyes
    • 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
    • C09B44/00—Azo dyes containing onium groups
    • C09B44/005—Special process features in the quaternization reaction
    • 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
    • C09B67/0096—Purification; Precipitation; Filtration

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

1358270 Purifying basic oxazine dyes IMPERIAL CHEMICAL INDUSTRIES Ltd 20 Nov 1972 [7 Dec 1971] 56744/71 Heading C4P Basic oxazine dyestuffs are purified by precipitation from aqueous solution in the absence of organic solvents and in presence of a cationic surface active agent by (i) cooling, (ii) adding a salt to decrease the solubility of the dyestuff and/or (iii) by conversion of the dyestuff into a less soluble form. The amount of cationic surface active agent is preferably 1À0 to 5À0% by weight of the dyestuff and non-ionic surface active agents may also be added, the total amount of surface active agent mixture being not greater than 8% by weight of dyestuff.
GB5674471A 1971-12-07 1971-12-07 Purification of basic oxyzine dyestuffs Expired GB1358270A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB5674471A GB1358270A (en) 1971-12-07 1971-12-07 Purification of basic oxyzine dyestuffs
NL7216598A NL7216598A (en) 1971-12-07 1972-12-07

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5674471A GB1358270A (en) 1971-12-07 1971-12-07 Purification of basic oxyzine dyestuffs

Publications (1)

Publication Number Publication Date
GB1358270A true GB1358270A (en) 1974-07-03

Family

ID=10477425

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5674471A Expired GB1358270A (en) 1971-12-07 1971-12-07 Purification of basic oxyzine dyestuffs

Country Status (2)

Country Link
GB (1) GB1358270A (en)
NL (1) NL7216598A (en)

Also Published As

Publication number Publication date
NL7216598A (en) 1973-06-12

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee