GB317428A - Improvements in and relating to dyes and dyeing - Google Patents

Improvements in and relating to dyes and dyeing

Info

Publication number
GB317428A
GB317428A GB1441128A GB1441128A GB317428A GB 317428 A GB317428 A GB 317428A GB 1441128 A GB1441128 A GB 1441128A GB 1441128 A GB1441128 A GB 1441128A GB 317428 A GB317428 A GB 317428A
Authority
GB
United Kingdom
Prior art keywords
leuco
dyes
compounds
vat dyes
treated
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
GB1441128A
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.)
JOHN EDMUND GUY HARRIS
Scottish Dyes Ltd
Original Assignee
JOHN EDMUND GUY HARRIS
Scottish Dyes 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 JOHN EDMUND GUY HARRIS, Scottish Dyes Ltd filed Critical JOHN EDMUND GUY HARRIS
Priority to GB1441128A priority Critical patent/GB317428A/en
Publication of GB317428A publication Critical patent/GB317428A/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
    • C09B9/00—Esters or ester-salts of leuco compounds of vat dyestuffs

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Coloring (AREA)

Abstract

317,428. Barnes, R. S., Harris, J. E. G, Thomas, J., and Scottish Dyes, Ltd. May 16,1928. Leuco compounds of vat dyes, esters of.-Dry leuco-compounds of vat dyes are treated with malonyl halides, especially malonyl chloride, in tertiary basic suspension to give water soluble, stable compounds. These may be applied for dyeing without the usual vatting process, and converted into the parent dyestuffs with acid oxidizing agents. In examples, leuco-thioindigo and the leuco compound of Caledon Red BN are treated in pyridine suspension with malonyl chloride, in an atmosphere of nitrogen, and in the latter case. the product is dyed on to cotton from aqueous solution, and developed by an acid hypochlorite solution. Reference is made also to vat dyes of the anthraquinone series as starting materials. Specifications 186,057, 231,889, 245,587, 247,787, and 251,491 are referred to.
GB1441128A 1928-05-16 1928-05-16 Improvements in and relating to dyes and dyeing Expired GB317428A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1441128A GB317428A (en) 1928-05-16 1928-05-16 Improvements in and relating to dyes and dyeing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1441128A GB317428A (en) 1928-05-16 1928-05-16 Improvements in and relating to dyes and dyeing

Publications (1)

Publication Number Publication Date
GB317428A true GB317428A (en) 1929-08-16

Family

ID=10040714

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1441128A Expired GB317428A (en) 1928-05-16 1928-05-16 Improvements in and relating to dyes and dyeing

Country Status (1)

Country Link
GB (1) GB317428A (en)

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