Dyeing of polyacrylonitrile and acid-modified polyester fibres - with basic dyes in presence of fixing accelerators

Dyeing or printing of polyacrylonitrile or acid-modified polyester fibres, or mists. contg. these is performed with cationic dyes in presence of a fixing accelerator of formula A-X- HCH2OCH2- H-CN (in which A is phenyl diphenyl or naphthyl with up to two 1-4C alkyl, 1-2C alkoxy, F, Cl or Br substits...

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Bibliographic Details
Main Authors TROESKEN,OTTO,DR, KOLLODZEISKI,NORBERT, WIRTH,SIEGFRIED, RIBKA,JOACHIM,DR, KEIL,KARL-HEINZ,DR
Format Patent
LanguageEnglish
German
Published 24.06.1976
Edition2
Subjects
DYEING LEATHER, FURS, OR SOLID MACROMOLECULAR SUBSTANCES INANY FORM
DYEING OR PRINTING TEXTILES
FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
LAUNDERING
TEXTILES
TREATMENT OF TEXTILES OR THE LIKE
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Summary:Dyeing or printing of polyacrylonitrile or acid-modified polyester fibres, or mists. contg. these is performed with cationic dyes in presence of a fixing accelerator of formula A-X- HCH2OCH2- H-CN (in which A is phenyl diphenyl or naphthyl with up to two 1-4C alkyl, 1-2C alkoxy, F, Cl or Br substits; R' and R2 are H or 1-2C alkyl and X is -O- or -COO-); in amt. of 2-25g/l of dye bath. Method is more efficient than the nearest known accelerator (benzyl oxypropionitrile) giving a further redn. in dyeing time, better utilisation of the dye, and deeper shades. Can be used in high-spped continuous dyeing processes. Toxicity of cpds. used is very low.
Bibliography:Application Number: DE19742461148