GB381944A - Manufacture of azo-dyestuffs insoluble in water - Google Patents

Manufacture of azo-dyestuffs insoluble in water

Info

Publication number
GB381944A
GB381944A GB1944231A GB1944231A GB381944A GB 381944 A GB381944 A GB 381944A GB 1944231 A GB1944231 A GB 1944231A GB 1944231 A GB1944231 A GB 1944231A GB 381944 A GB381944 A GB 381944A
Authority
GB
United Kingdom
Prior art keywords
carboxylic acid
oxynaphthalene
methoxy
alkoxy
amino
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
GB1944231A
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.)
IG Farbenindustrie AG
Original Assignee
IG Farbenindustrie 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 IG Farbenindustrie AG filed Critical IG Farbenindustrie AG
Priority to GB1944231A priority Critical patent/GB381944A/en
Publication of GB381944A publication Critical patent/GB381944A/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
    • C09B29/00—Monoazo dyes prepared by diazotising and coupling
    • C09B29/10—Monoazo dyes prepared by diazotising and coupling from coupling components containing hydroxy as the only directing group
    • C09B29/18—Monoazo dyes prepared by diazotising and coupling from coupling components containing hydroxy as the only directing group ortho-Hydroxy carbonamides
    • C09B29/20—Monoazo dyes prepared by diazotising and coupling from coupling components containing hydroxy as the only directing group ortho-Hydroxy carbonamides of the naphthalene series

Abstract

Azo dyes are made in substance, on a substratum or on the fibre, by coupling a diazo compound with an arylide of a 6-alkoxy-2 : 3-oxynaphthoic acid. Bluer shades are obtained than when using the unsubstituted arylides. In examples, the following dyestuffs are produced on cotton, (1) 4-chloro-2-toluidine, 4-amino - 1 : 3- dimethylbenzene, 4-chloro-2-nitraniline or o-nitraniline --> 6-methoxy-2-oxynaphthalene - 3 - carboxylic acid anilide, (2) 2 : 5-dichloroaniline --> 6-methoxy- 2-oxynaphthalene-3-carboxylic acid - 4<1> - toluidide, (3) 1-amino - 4 - benzoylamino - 2 : 5 - diethoxybenzene --> 6-methoxy - 2 - oxynaphthalene-3-carboxylic acid - o - anisidide, 4-amino - 4<1>-methoxydiphenylamine --> b - or a -naphthylamide of 6-methoxy-2-oxynaphthalene-3-carboxylic acid. 6-Alkoxy-2 : 3-hydroxynaphthoic acid arylides are made by condensing 6-alkoxy-2-naphthol-3-carboxylic acid with arylamines according to known methods. Specifications 6379/12, [Class 2 (iii), Dyes &c.], and 17279/13, [Class 15 (ii), Dyeing, Processes &c. for], are referred to.
GB1944231A 1931-07-06 1931-07-06 Manufacture of azo-dyestuffs insoluble in water Expired GB381944A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1944231A GB381944A (en) 1931-07-06 1931-07-06 Manufacture of azo-dyestuffs insoluble in water

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1944231A GB381944A (en) 1931-07-06 1931-07-06 Manufacture of azo-dyestuffs insoluble in water

Publications (1)

Publication Number Publication Date
GB381944A true GB381944A (en) 1932-10-06

Family

ID=10129454

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1944231A Expired GB381944A (en) 1931-07-06 1931-07-06 Manufacture of azo-dyestuffs insoluble in water

Country Status (1)

Country Link
GB (1) GB381944A (en)

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