GB190311003A - Manufacture of New Green Sulphurised Colouring Matters. - Google Patents

Manufacture of New Green Sulphurised Colouring Matters.

Info

Publication number
GB190311003A
GB190311003A GB190311003DA GB190311003A GB 190311003 A GB190311003 A GB 190311003A GB 190311003D A GB190311003D A GB 190311003DA GB 190311003 A GB190311003 A GB 190311003A
Authority
GB
United Kingdom
Prior art keywords
amidophenol
indophenols
naphthylamine
simplest
dyes
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
Inventor
Denton Abel Charles
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.)
Agfa Gevaert NV
Original Assignee
Aktiengesellschaft fuer Anilinfabrikation GmbH
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 Aktiengesellschaft fuer Anilinfabrikation GmbH filed Critical Aktiengesellschaft fuer Anilinfabrikation GmbH
Application granted granted Critical
Publication of GB190311003A publication Critical patent/GB190311003A/en
Expired legal-status Critical Current

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  • Heat Sensitive Colour Forming Recording (AREA)
  • Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems (AREA)

Abstract

11,003. Abel, C. D., [Akt.-Ges. f³r Anilin Fabrikation]. May 14. Dyes, artificial.-Sulphurized dyes, which dye cotton bright-green tints of great fastness, are produced by boiling an aqueous solution of alkalipolysulphide, or sodium sulphide and sulphur, in the presence of copper sulphate or other salt, with indophenols of which the simplest is that derived from p-amidophenol and #-naphthylamine. The indophenols derived from homologues of p-amidophenol, or o-chlor-p-amidophenol and alpha-naphthylamine or alpha-naphthylamine sulphonic acids having no sulphonic acid group in the para position to the amido group, may be used. The dye obtained from the simplest indophenol is a dark-green powder insoluble in water, easily soluble in alkali sulphides, and slightly soluble in caustic alkalies to greenish solutions and in concentrated sulphuric acid to a bluish solution. The leuco compounds of the indophenols may be used.
GB190311003D 1903-05-14 1903-05-14 Manufacture of New Green Sulphurised Colouring Matters. Expired GB190311003A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB190311003T 1903-05-14

Publications (1)

Publication Number Publication Date
GB190311003A true GB190311003A (en) 1904-04-07

Family

ID=32253374

Family Applications (1)

Application Number Title Priority Date Filing Date
GB190311003D Expired GB190311003A (en) 1903-05-14 1903-05-14 Manufacture of New Green Sulphurised Colouring Matters.

Country Status (1)

Country Link
GB (1) GB190311003A (en)

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