GB765087A - Leathers of deep neutral black shades - Google Patents

Leathers of deep neutral black shades

Info

Publication number
GB765087A
GB765087A GB33964/54A GB3396454A GB765087A GB 765087 A GB765087 A GB 765087A GB 33964/54 A GB33964/54 A GB 33964/54A GB 3396454 A GB3396454 A GB 3396454A GB 765087 A GB765087 A GB 765087A
Authority
GB
United Kingdom
Prior art keywords
dyestuff
neutral
black shades
leathers
neutral black
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
GB33964/54A
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.)
Cassella Farbwerke Mainkur AG
Original Assignee
Cassella Farbwerke Mainkur 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 Cassella Farbwerke Mainkur AG filed Critical Cassella Farbwerke Mainkur AG
Publication of GB765087A publication Critical patent/GB765087A/en
Expired legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P3/00—Special processes of dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form, classified according to the material treated
    • D06P3/02—Material containing basic nitrogen
    • D06P3/04—Material containing basic nitrogen containing amide groups
    • D06P3/32—Material containing basic nitrogen containing amide groups leather skins
    • D06P3/3206—Material containing basic nitrogen containing amide groups leather skins using acid dyes
    • D06P3/3226—Material containing basic nitrogen containing amide groups leather skins using acid dyes dis-polyazo
    • 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
    • C09B35/00—Disazo and polyazo dyes of the type A<-D->B prepared by diazotising and coupling
    • C09B35/38—Trisazo dyes ot the type
    • C09B35/44—Trisazo dyes ot the type the component K being a hydroxy amine
    • C09B35/46—Trisazo dyes ot the type the component K being a hydroxy amine the component K being an amino naphthol
    • C09B35/463—D being derived from diaminodiphenyl

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Coloring (AREA)

Abstract

Leather, including chrome leather, is dyed in deep, neutral black shades by applying a dyestuff of the formula:- <FORM:0765087/IV(b)/1> where R is a benzene or naphthalene radical which contains no substituent sulphonic acid group but may be substituted by an alkyl, alkoxy, aryl, aryloxy, nitro, acylamino, amino or carboxyl group or a halogen atom. Numerous examples are given of the radical R. The dyestuff is applied in a neutral to weakly acidic aqueous solution. The dyestuff may be prepared by coupling a diazodisazo dyestuff of the formula <FORM:0765087/IV(b)/2> with 1-amino-3-hydroxy-benzene in an acid, neutral or alkaline medium.
GB33964/54A 1953-11-23 1954-11-23 Leathers of deep neutral black shades Expired GB765087A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE765087X 1953-11-23

Publications (1)

Publication Number Publication Date
GB765087A true GB765087A (en) 1957-01-02

Family

ID=6673028

Family Applications (1)

Application Number Title Priority Date Filing Date
GB33964/54A Expired GB765087A (en) 1953-11-23 1954-11-23 Leathers of deep neutral black shades

Country Status (1)

Country Link
GB (1) GB765087A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1277115B (en) * 1961-06-12 1968-09-05 William Fredrick Via Jun Container for holding and mixing different materials

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1277115B (en) * 1961-06-12 1968-09-05 William Fredrick Via Jun Container for holding and mixing different materials

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