Process for the level dyeing of polyester material

Details Process for the level dyeing of polyester material Process for the level dyeing of polyester material

1979-06-18

1981-03-10

Clingman, A. Lionel

Bleaching and dyeing; fluid treatment and chemical modification

Dye or potential dye composition, additive, treatment,...

Mixed dyes, noncomplexed

8475, 8639, 8922, D06P 100, C09B 2700

Patent

active

042551544

ABSTRACT:
Described is a process for the level dyeing of polyester material by the aqueous exhaust method at temperatures above 100.degree. C., which comprises the use of an aqueous dye liquor which contains at least one migrating disperse dye as well as further ingredients. As migrating disperse dye, preferably a dye is used which has a diffusion coefficient Do at 130.degree. C. of 2 to 10.times.10.sup.-10 cm.sup.2 /sec, a distribution coefficient K at 130.degree. C. of 20 to 500 1/kg, and a migration half-life t/2 less then 50 minutes.

REFERENCES:
patent: 3989449 (1976-11-01), Dixon et al.
Weingarten, R., Textilpraxis International, 1973, pp. 231-233.
Weigold, S., Spinner Weber Textilveredlung, 1967, 77, pp. 35-41.
Merian, E. et al., J. Soc. Dyers and Colourists, 1963, 79, (No. 11), pp. 505-512.
Cegarra, J., et al., Textilveredlung, 1972, 7, (No. 7), pp. 433-439.
Moncrieff, R. W., "Man-Made Fibres" (John Wiley, 1975) pp. 453 and 887-888.

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