GB437049A - A process for dyeing animal fibres - Google Patents

A process for dyeing animal fibres

Info

Publication number
GB437049A
GB437049A GB1513634A GB1513634A GB437049A GB 437049 A GB437049 A GB 437049A GB 1513634 A GB1513634 A GB 1513634A GB 1513634 A GB1513634 A GB 1513634A GB 437049 A GB437049 A GB 437049A
Authority
GB
United Kingdom
Prior art keywords
diazotized
rinsing
drying
treatment
hour
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
GB1513634A
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.)
John W Leitch & Co Ltd
Original Assignee
John W Leitch & Co Ltd
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 John W Leitch & Co Ltd filed Critical John W Leitch & Co Ltd
Priority to GB1513634A priority Critical patent/GB437049A/en
Publication of GB437049A publication Critical patent/GB437049A/en
Expired legal-status Critical Current

Links

Classifications

    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06PDYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P1/00General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
    • D06P1/02General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using azo dyes
    • D06P1/12General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using azo dyes prepared in situ
    • D06P1/122General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using azo dyes prepared in situ the textile material containing one component

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
  • Coloring (AREA)

Abstract

Azo dyes, forming on the material.--Animal fibres such as wool or silk, with or without an admixture of other material such as cotton or artificial silk, which have been dyed by causing a diazotized amine to couple with the fibres, are treated to change the colour of the dyeings by subjecting the dyed fibres to the action of warm or hot aqueous solutions of one or more metallic compounds or salts of chromium, copper, nickel or cobalt and thereafter rinsing and drying. The following examples are specified: (1) A yellow dyeing, produced on natural silk yarn by treatment in a 1 per cent soda ash solution at 50 DEG C. containing a wettingout agent, draining off surplus liquor, treatment for 45 minutes in a cold solution of diazotized 2 - methoxy - 5 - nitraniline neutralized with sodium bicarbonate and rinsing, is changed to a terracotta brown by placing in an aqueous solution at 30--40 DEG C. of copper sulphate and acetic acid, heating slowly to about 95 DEG C., maintaining at 90--95 DEG C. for \ba1/2\be--\ba3/4\be hour, rinsing and drying. (2) An orange brown dyeing, produced on wool yarn by treatment with diazotized b -naphthylamine, is changed to a dark brown of improved fastness by placing in an aqueous solution at 50--60 DEG C. of sodium bichromate and sulphuric acid, heating slowly to boiling, so maintaining for \ba3/4\be--1 hour, rinsing and drying. (3) A dull yellow or gold dyeing, produced on natural silk yarn by treatment with diazotized a -naphthylamine, is changed to a dark brown of improved fastness by placing in an aqueous solution at 30--40 DEG C. of potassium bichromate and sulphuric acid, heating slowly to 95--100 DEG C., maintaining at 95 DEG C. for \ba3/4\be--1 hour, rinsing and drying. (4) An orange brown dyeing, produced on wool yarn by treatment with diazotized 2 - methoxy - 4 - nitraniline, is changed to a brownish maroon of good fastness to light by placing in an aqueous solution at 50 DEG C. of copper sulphate and acetic acid, heating slowly to 95 DEG C., maintaining at or near the boil for \ba3/4\be--1 hour, rinsing and drying. (5) An orange brown dyeing, produced on wool yarn by treatment with diazotized a -aminoanthraquinone, is changed to a dark brown of improved fastness by placing in an aqueous solution at 50 DEG C. of copper sulphate and acetic acid, heating slowly to 95 DEG C., maintaining at or near the boil for \ba3/4\be--1 hour, rinsing and drying. (6) A reddish orange brown dyeing, produced on woollen cloth containing cotton and viscose artificial silk by treatment with a mixture of diazotized a -naphthylamine and diazotized 4-nitro-2-aminotoluene, is changed to a dark brown with contrasting effect threads by placing in an aqueous solution at 30--40 DEG C. of sodium bichromate and sulphuric acid, heating slowly to boiling, so maintaining for \ba3/4\be--1 hour, rinsing and drying. (7) An orange brown dyeing, produced on woollen cloth by treatment with diazotized 2 - methozy - 4 - nitraniline, is changed to a brownish maroon by placing in a aqueous solution at 30 DEG C. of copper sulphate, heating slowly to 95 DEG C., maintaining at or near the boil for \ba3/4\be--1 hour, rinsing and drying. (8) An orange brown dyeing, produced on loose wool by treatment with diazotized b -naphthylamine, is changed to a dark brown of improved fastness by placing in an aqueous solution at 50--60 DEG C. of sodium bichromate and sulphuric acid, heating slowly to the boil, so maintaining for \ba1/2\be--1 hour, rinsing and drying. Other specified diazo compounds are those of 3-chloro-1 - aminonaphthalene, 4 - nitro - 1 - aminonaphthalene, 1 : 5 - diaminonaphthalene, Brönner acid, 4-nitraniline, benzidine, tolidine, o - aminoazotoluene, dianisidine, 4 - aminoacenaphthene, 4 : 8-diamino-1 : 5-dihydroxyanthraquinone, 2 - methoxy - 4 - chloraniline, 3 - nitro - 4 - aminophenetol, o - nitrobenzidine and 1 : 5-diaminoanthraquinone.
GB1513634A 1934-05-18 1934-05-18 A process for dyeing animal fibres Expired GB437049A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1513634A GB437049A (en) 1934-05-18 1934-05-18 A process for dyeing animal fibres

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1513634A GB437049A (en) 1934-05-18 1934-05-18 A process for dyeing animal fibres

Publications (1)

Publication Number Publication Date
GB437049A true GB437049A (en) 1935-10-23

Family

ID=10053671

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1513634A Expired GB437049A (en) 1934-05-18 1934-05-18 A process for dyeing animal fibres

Country Status (1)

Country Link
GB (1) GB437049A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110318186A (en) * 2019-07-05 2019-10-11 嘉兴市东亮染整有限公司 A kind of increasing is deep to increase gorgeous wool yarn dyeing

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110318186A (en) * 2019-07-05 2019-10-11 嘉兴市东亮染整有限公司 A kind of increasing is deep to increase gorgeous wool yarn dyeing

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