GB287214A - Improvements in or relating to the dyeing of regenerated cellulose materials - Google Patents

Improvements in or relating to the dyeing of regenerated cellulose materials

Info

Publication number
GB287214A
GB287214A GB3156826A GB3156826A GB287214A GB 287214 A GB287214 A GB 287214A GB 3156826 A GB3156826 A GB 3156826A GB 3156826 A GB3156826 A GB 3156826A GB 287214 A GB287214 A GB 287214A
Authority
GB
United Kingdom
Prior art keywords
aminonaphthol
acid
nitraniline
components
nitro
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
GB3156826A
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.)
Imperial Chemical Industries Ltd
Original Assignee
British Dyestuffs Corp 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 British Dyestuffs Corp Ltd filed Critical British Dyestuffs Corp Ltd
Priority to GB3156826A priority Critical patent/GB287214A/en
Publication of GB287214A publication Critical patent/GB287214A/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
    • C09B31/00—Disazo and polyazo dyes of the type A->B->C, A->B->C->D, or the like, prepared by diazotising and coupling
    • C09B31/02—Disazo dyes
    • C09B31/08—Disazo dyes from a coupling component "C" containing directive hydroxyl and amino groups

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Coloring (AREA)

Abstract

287,214. British Dyestuffs Corporation, Ltd., and Baddiley, J. Dec. 13, 1926. Substantive dyes, dyeing with ; disazo dyes. - Regenerated cellulose silk is dyed with secondary disazo dyes obtained bv coupling a diazotized nitroarylamine or a homologue or derivative thereof free from sulpho or carboxy groups with a middle component, rediazotizing, and coupling alkaline with a 1 : 8-aminonaphthol sulphonic acid or a N-substituted derivative thereof. The nitro group may or may not be reduced. The following dyestuffs are specified in examples :-pnitraniline # ClÞve's acid # 1 : 8-aminonaphthol-4-sulphonic acid, yielding a dull-blue shade: p-nitraniline # m-amino - P - cresol methyl ether # 1 : 8-aminonaphthol-3 : 6-disulphonic acid. and reduction of the nitro group yielding a' greenish-black shade. In the latter case the fastness to washing and to acids is increased by diazotization on the fibre and development with m-toluylenediamine. A table is given showing the shades obtainable from various components, and in which other first components specified are m-nitraniline, o-chloro-p-nitraniline, m-nitro-p-toluidine, and p-nitro-o-anisidine ; other middle components are p-xylidine, m-toluidine, and alpha-naphthylamine ; and other end components are 1-acetylamino-8-naphthol-3 : 6 - disulphonic acid, and 1 : 8-aminonaphthol-2 : 4-disulphonic acid.
GB3156826A 1926-12-13 1926-12-13 Improvements in or relating to the dyeing of regenerated cellulose materials Expired GB287214A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3156826A GB287214A (en) 1926-12-13 1926-12-13 Improvements in or relating to the dyeing of regenerated cellulose materials

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3156826A GB287214A (en) 1926-12-13 1926-12-13 Improvements in or relating to the dyeing of regenerated cellulose materials

Publications (1)

Publication Number Publication Date
GB287214A true GB287214A (en) 1928-03-13

Family

ID=10325060

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3156826A Expired GB287214A (en) 1926-12-13 1926-12-13 Improvements in or relating to the dyeing of regenerated cellulose materials

Country Status (1)

Country Link
GB (1) GB287214A (en)

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