GB190126465A - Improvements in and relating to the Manufacture of Black Sulphur Dyes for Cotton. - Google Patents

Improvements in and relating to the Manufacture of Black Sulphur Dyes for Cotton.

Info

Publication number
GB190126465A
GB190126465A GB190126465DA GB190126465A GB 190126465 A GB190126465 A GB 190126465A GB 190126465D A GB190126465D A GB 190126465DA GB 190126465 A GB190126465 A GB 190126465A
Authority
GB
United Kingdom
Prior art keywords
cotton
black
dyes
alkali
relating
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
Harris Lake Henry
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.)
Sandoz AG
Original Assignee
Sandoz AG
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 Sandoz AG filed Critical Sandoz AG
Application granted granted Critical
Publication of GB190126465A publication Critical patent/GB190126465A/en
Expired legal-status Critical Current

Links

Landscapes

  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

26,465. Lake, H. H., [Chemical Works, formerly Sandoz]. Dec. 27. Dyes, artificial.-Black sulphur dyes for cotton are produced by heating 1 :3 : 4-dinitrophenol, or the corresponding nitroamido or diamidophenol, with an aqueous solution of an alkali hyposulphite at 150‹-170‹ C. in an autoclave for several hours. The product separates in the form of a black crystalline powder. It is insoluble in water, dilute acids, sodium carbonate, benzene, aniline, or strong sulphuric acid, but it dissolves easily in soda lye and alkali sulphides. It dyes cotton, in a bath containing sodium sulphide and common salt, black shades fast to washing, alkalies, acids, and light.
GB190126465D 1901-12-27 1901-12-27 Improvements in and relating to the Manufacture of Black Sulphur Dyes for Cotton. Expired GB190126465A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB190126465T 1901-12-27

Publications (1)

Publication Number Publication Date
GB190126465A true GB190126465A (en) 1902-10-23

Family

ID=32426395

Family Applications (1)

Application Number Title Priority Date Filing Date
GB190126465D Expired GB190126465A (en) 1901-12-27 1901-12-27 Improvements in and relating to the Manufacture of Black Sulphur Dyes for Cotton.

Country Status (1)

Country Link
GB (1) GB190126465A (en)

Similar Documents

Publication Publication Date Title
GB190126465A (en) Improvements in and relating to the Manufacture of Black Sulphur Dyes for Cotton.
Teppema et al. Researches on mercaptothiazoles. I
GB190114081A (en) Manufacture of a Blue-dyestuff from Para-amido-paraoxydiphenylamine.
GB189909998A (en) Manufacture of Para-oxy-para-amido-ortho-oxydiphenylamine by heating Para-oxy-para-amidodiphenylamine-ortho-sulphonic acid with Caustic Alkalies.
GB190205277A (en) Improved Process for Reducing Indigo.
GB190304340A (en) Improvements in, and relating to, the Manufacture of Dyes
GB413296A (en) Improvements in or relating to the manufacture of vulcanised rubber
GB190407041A (en) Improvements in the Manufacture and Production of Blue-black, to Black, Sulphur Colouring Matters, or Dyes.
GB189921496A (en) Manufacture of Blue Dye-stuffs for Cotton.
GB190605890A (en) Manufacture and Production of a New Dyestuff of the Anthracene Series
GB190714846A (en) Manufacture of Dyestuffs of the Thioindigo Series.
GB190306078A (en) Improved Manufacture of Sulphurised Colouring Matters.
GB190016247A (en) The Manufacture of Dyestuffs.
GB190407042A (en) Improvements in the Manufacture and Production of Green Sulphur Colouring Matters, or Dyes.
GB274558A (en) Improvements in and relating to the manufacture of derivatives, of the anthraquinone series
US1810013A (en) Process of preparing 4'-sulpho-omicron-benzoyl-benzoic acid
US696751A (en) Blue sulfur dye and process of making same.
GB391747A (en) Manufacture of aminothiophenols or substitution products thereof
GB189910775A (en) Manufacture of a Black Colouring Matter Directly Dyeing Cotton.
GB191409269A (en) Manufacture of Finely Subdivided Vat Dyestuffs of the Dihydro-1:2:2:1-anthraquinoneazine Series.
GB189918105A (en) Manufacture of a Sulphurised Black Dyestuff.
GB190104568A (en) Manufacture of a Brown Sulphurised Dyestuff from 2 : 4-dinitro-para-oxydiphenylamine or 2 : 4-nitro-amido-oxydiphenylamine.
GB190511066A (en) Improvements in the Manufacture and Production of Sulphur Colouring Matters
GB190010843A (en) Manufacture of a Sulphurised Leuco-compound.
GB190214935A (en) Improvement in the Manufacture and Production of Theophylline.