GB226373A - Manufacture of vat-dyestuffs - Google Patents

Manufacture of vat-dyestuffs

Info

Publication number
GB226373A
GB226373A GB3252423A GB3252423A GB226373A GB 226373 A GB226373 A GB 226373A GB 3252423 A GB3252423 A GB 3252423A GB 3252423 A GB3252423 A GB 3252423A GB 226373 A GB226373 A GB 226373A
Authority
GB
United Kingdom
Prior art keywords
vat
dyestuffs
naphthioindoxyl
oxidizing agents
manufacture
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
GB3252423A
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.)
BASF Schweiz AG
Original Assignee
Gesellschaft fuer Chemische Industrie in Basel CIBA
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 Gesellschaft fuer Chemische Industrie in Basel CIBA filed Critical Gesellschaft fuer Chemische Industrie in Basel CIBA
Priority to GB3252423A priority Critical patent/GB226373A/en
Publication of GB226373A publication Critical patent/GB226373A/en
Expired legal-status Critical Current

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Abstract

Thioindigoid dyes are obtained by treating with oxidizing agents nuclear halogen substitution products of 2 : 3-naphthioindoxyl; the latter are produced according to the process described in Specification 216,347. In an example, dyestuffs dyeing cotton in fast blue shades from the vat are obtained by blowing air through a caustic soda solution of p 1-brom- or 1-chlor-2 : 3-naphthioindoxyl; other oxidizing agents such as potassium ferricyanide may be used.
GB3252423A 1923-12-29 1923-12-29 Manufacture of vat-dyestuffs Expired GB226373A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3252423A GB226373A (en) 1923-12-29 1923-12-29 Manufacture of vat-dyestuffs

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3252423A GB226373A (en) 1923-12-29 1923-12-29 Manufacture of vat-dyestuffs

Publications (1)

Publication Number Publication Date
GB226373A true GB226373A (en) 1924-12-24

Family

ID=10339913

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3252423A Expired GB226373A (en) 1923-12-29 1923-12-29 Manufacture of vat-dyestuffs

Country Status (1)

Country Link
GB (1) GB226373A (en)

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