Colouring cellulosic textiles simultaneous with finishing - using etherified urea, carbamate or triazine as swelling agent and disperse dye solvent

• Main Authors: PETERSEN,HARRO,.DR, BAUMGARTE,ULRICH,.DR
• Format: Patent
• Language: English; German
• Published: 06.11.1980
• Edition: 3
• 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; TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS,FABRICS, FEATHERS, OR FIBROUS GOODS MADE FROM SUCH MATERIALS

Dyeing or printing of cellulose textiles (or their blends with synthetic fibres) using disperse dyes (I) in aq. media in presence of water-soluble swelling agents anddye solvents is now carried out simultaneously with finishing. The new feature is that the swelling agent/dye solvent is 30-300 wt. pts. per 1000 wt. pts. liquor or printing paste of a methylol and/or methylol ether cpd. (A) of (cyclic) ureas, carbamates or aminotriazines etherified with polyethylene glycol, opt. together with up to 50 wt. % acid catalyst. After treatment the dye is fixed at is not >230 degrees C. Esp. (A) is etherified with a PEG contg. 5-25 ethylene oxide units. Dyeing and finishing are carried out in a single stage giving a finished article of better feel and good, smooth appearance. Method is esp. suitable for cotton and cotton-polyester blends.