GB354818A - Manufacture of acid wool dyestuffs - Google Patents

Manufacture of acid wool dyestuffs

Info

Publication number
GB354818A
GB354818A GB1483530A GB1483530A GB354818A GB 354818 A GB354818 A GB 354818A GB 1483530 A GB1483530 A GB 1483530A GB 1483530 A GB1483530 A GB 1483530A GB 354818 A GB354818 A GB 354818A
Authority
GB
United Kingdom
Prior art keywords
dyes
manufacture
acid
acid wool
wool dyestuffs
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
GB1483530A
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 GB1483530A priority Critical patent/GB354818A/en
Publication of GB354818A publication Critical patent/GB354818A/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
    • C09B57/00—Other synthetic dyes of known constitution
    • C09B57/08—Naphthalimide dyes; Phthalimide dyes

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Indole Compounds (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Coloring (AREA)

Abstract

Naphthalene dyes.-Acid wool dyes are obtained by treating hydroaromatic - nitronaphthalic - acidimides with a reducing agent causing the entrance of a sulphonic acid group. According to the example, 4-nitro-1 : 8-naphthalic acid cyclohexylimide, obtained by condensing cyclohexylamine with the anhydride, is treated with hydrosulphite solution and bisulphite may also be used. The Provisional Specification refers also to the use of nitronaphthalimides substituted by a residue of hydrazine or a derivative thereof. Specification 309,552, [Class 2 (iii), Dyes &c.], is referred to.
GB1483530A 1930-05-14 1930-05-14 Manufacture of acid wool dyestuffs Expired GB354818A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1483530A GB354818A (en) 1930-05-14 1930-05-14 Manufacture of acid wool dyestuffs

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1483530A GB354818A (en) 1930-05-14 1930-05-14 Manufacture of acid wool dyestuffs

Publications (1)

Publication Number Publication Date
GB354818A true GB354818A (en) 1931-08-14

Family

ID=10048307

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1483530A Expired GB354818A (en) 1930-05-14 1930-05-14 Manufacture of acid wool dyestuffs

Country Status (1)

Country Link
GB (1) GB354818A (en)

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