GB189723816A - Improvements in the Production of Colouring Matters. - Google Patents

Improvements in the Production of Colouring Matters.

Info

Publication number
GB189723816A
GB189723816A GB189723816DA GB189723816A GB 189723816 A GB189723816 A GB 189723816A GB 189723816D A GB189723816D A GB 189723816DA GB 189723816 A GB189723816 A GB 189723816A
Authority
GB
United Kingdom
Prior art keywords
production
acid
dyes
colouring matters
naphthylamine
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
Arthur Ashworth
Joshua Buerger
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of GB189723816A publication Critical patent/GB189723816A/en
Expired legal-status Critical Current

Links

Abstract

23,816. Ashworth, A., and B³rger, J. Oct. 16. Dyes, artificial.-Dyes which yield a black shade upon unmordanted or chrome-mordanted wool are produced by combining with a-oxynaphthoic acid a diazo-azonaphthalene sulphonic acid, such as that derived from the combination of #-naphthylamine disulphonic acid-G with a-naphthylamine.
GB189723816D 1897-10-16 1897-10-16 Improvements in the Production of Colouring Matters. Expired GB189723816A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB189723816T 1897-10-16

Publications (1)

Publication Number Publication Date
GB189723816A true GB189723816A (en) 1897-11-20

Family

ID=32137452

Family Applications (1)

Application Number Title Priority Date Filing Date
GB189723816D Expired GB189723816A (en) 1897-10-16 1897-10-16 Improvements in the Production of Colouring Matters.

Country Status (1)

Country Link
GB (1) GB189723816A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4274952A (en) * 1978-10-07 1981-06-23 Voest-Alpine Aktiengesellschaft Apparatus for separating solids from a suspension

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4274952A (en) * 1978-10-07 1981-06-23 Voest-Alpine Aktiengesellschaft Apparatus for separating solids from a suspension

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