GB705332A - Improvements in and relating to colouration by vat dyestuffs - Google Patents

Improvements in and relating to colouration by vat dyestuffs

Info

Publication number
GB705332A
GB705332A GB2807951A GB2807951A GB705332A GB 705332 A GB705332 A GB 705332A GB 2807951 A GB2807951 A GB 2807951A GB 2807951 A GB2807951 A GB 2807951A GB 705332 A GB705332 A GB 705332A
Authority
GB
United Kingdom
Prior art keywords
vat
pyridine
cellulose acetate
swelling
dyebath
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
GB2807951A
Inventor
Alexander Robert Urquhart
Gordon Roy Sutcliffe
Peter Coburn
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.)
LANSIL Ltd
Original Assignee
LANSIL 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 LANSIL Ltd filed Critical LANSIL Ltd
Priority to GB2807951A priority Critical patent/GB705332A/en
Publication of GB705332A publication Critical patent/GB705332A/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
    • D06P1/00—General 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
    • D06P1/44—General 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 insoluble pigments or auxiliary substances, e.g. binders
    • D06P1/64—General 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 insoluble pigments or auxiliary substances, e.g. binders using compositions containing low-molecular-weight organic compounds without sulfate or sulfonate groups
    • D06P1/642—Compounds containing nitrogen
    • D06P1/6426—Heterocyclic compounds
    • 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
    • D06P1/00—General 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
    • D06P1/22—General 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 vat dyestuffs including indigo
    • D06P1/221—Reducing systems; Reducing catalysts

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Coloring (AREA)

Abstract

Cellulose acetate is dyed in an aqueous dyebath under non-swelling conditions with certain vat dyestuffs which have been reduced under non-alkaline conditions in the presence of pyridine, the amount of pyridine being such that the swelling of the cellulose acetate is only substantially the same as the swelling in water alone. The vat dyestuffs used are indigo and thioindigo and their derivatives, halogenated indirubines, dinaphthindigoid compounds, acyl aminoanthraquinones, pyranthrones, benzanthrones, anthraquinonyl amines, and carbazoles containing more than one anthraquinone nucleus, but dyestuffs containing a single anthraquinone nucleus linked at two adjacent carbon atoms to a second cyclic residue through a heterocyclic grouping are excluded. It is preferred to prepare the reduced vat in concentrated form and to add this to the dyebath, and if the acidity normally developed during dyeing becomes considerable, a weak alkali such as ammonia may be added to bring the bath nearer to neutrality. In examples, (1) Durindone Blue 4BCS is reduced with sodium hydrosulphite while adding pyridine, and the concentrated vat is added to a dyebath and used for dyeing cellulose acetate fabric, the dye being subsequently developed on the fabric by means of a solution of sodium perborate; (2) cellulose acetate fabric is dyed in a bath made from a vat concentrate made by mixing Caledon Golden Yellow GKS, water, sodium hydrosulphite and pyridine, and is finally developed by means of a solution of sodium perborate. Specification 320,978, [Class 15(2)], is referred to.
GB2807951A 1951-11-29 1951-11-29 Improvements in and relating to colouration by vat dyestuffs Expired GB705332A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2807951A GB705332A (en) 1951-11-29 1951-11-29 Improvements in and relating to colouration by vat dyestuffs

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2807951A GB705332A (en) 1951-11-29 1951-11-29 Improvements in and relating to colouration by vat dyestuffs

Publications (1)

Publication Number Publication Date
GB705332A true GB705332A (en) 1954-03-10

Family

ID=10269934

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2807951A Expired GB705332A (en) 1951-11-29 1951-11-29 Improvements in and relating to colouration by vat dyestuffs

Country Status (1)

Country Link
GB (1) GB705332A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1734172A3 (en) * 2005-06-16 2007-09-19 Rohm and Haas Company Method for dyeing textiles

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1734172A3 (en) * 2005-06-16 2007-09-19 Rohm and Haas Company Method for dyeing textiles

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