GB998946A - Reduction of sulphur dyes - Google Patents

Reduction of sulphur dyes

Info

Publication number
GB998946A
GB998946A GB1040/64A GB104064A GB998946A GB 998946 A GB998946 A GB 998946A GB 1040/64 A GB1040/64 A GB 1040/64A GB 104064 A GB104064 A GB 104064A GB 998946 A GB998946 A GB 998946A
Authority
GB
United Kingdom
Prior art keywords
reduction
dyes
sulphur
reduced
sulphur dyes
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
GB1040/64A
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.)
Southern Bleachery and Print Works Inc
Original Assignee
Southern Bleachery and Print Works Inc
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 Southern Bleachery and Print Works Inc filed Critical Southern Bleachery and Print Works Inc
Publication of GB998946A publication Critical patent/GB998946A/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
    • D06P1/30—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 sulfur dyes

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Coloring (AREA)

Abstract

The invention comprises a process for the reduction of sulphur dyes in which an alkali metal borohydride is used in conjunction with sodium sulphide or hydrosulphide in alkaline solution. The reduction may be effected using dyes which are soluble or insoluble in water to produce a dye composition in the liquid form. Alternatively the dyestuff may be reduced to the substantive form in the presence of a cellulosic material to be dyed. The preferred borohydrides are those of sodium and potassium and are used as 0.01% to 1% preferably 0.1 to 0.6% based on the weight of sulphur dye to be reduced. The temperature of reduction is from room temperature to 230 DEG F. at pH usually above 9.5.
GB1040/64A 1963-03-26 1964-01-09 Reduction of sulphur dyes Expired GB998946A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US267931A US3195974A (en) 1963-03-26 1963-03-26 Sulfur dye baths containing alkali metal borohydrides and process of dyeing cellulose textiles therewith

Publications (1)

Publication Number Publication Date
GB998946A true GB998946A (en) 1965-07-21

Family

ID=23020728

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1040/64A Expired GB998946A (en) 1963-03-26 1964-01-09 Reduction of sulphur dyes

Country Status (5)

Country Link
US (1) US3195974A (en)
CH (2) CH416552A (en)
FR (1) FR1381063A (en)
GB (1) GB998946A (en)
NL (1) NL6403267A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE602006010939D1 (en) * 2005-06-16 2010-01-21 Rohm & Haas Process for dyeing textiles

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2993743A (en) * 1961-07-25 i i ttts
US3124411A (en) * 1964-03-10 Method for dyeing textile materials
US2091417A (en) * 1933-01-23 1937-08-31 Gen Aniline Works Inc Sulphur dyestuff preparations
US2745788A (en) * 1954-04-30 1956-05-15 Gillette Co Dyeing with quinones or hydroquinones and borohydrides and compositions therefor
GB818790A (en) * 1957-04-16 1959-08-26 Farbefabriken Bayer Ag Process for printing textile fabrics with vat dyestuffs
CH383935A (en) * 1957-10-11 1964-11-15 Dieter Goerrig Durable, reducing mixture
US3118868A (en) * 1960-11-07 1964-01-21 Holliday Co Ltd L B Sulphurised vat dyestuffs in solubilised form

Also Published As

Publication number Publication date
US3195974A (en) 1965-07-20
CH408855A (en) 1966-09-30
CH416552A (en) 1966-07-15
CH274264A4 (en) 1965-11-30
FR1381063A (en) 1964-12-04
NL6403267A (en) 1964-09-28

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