Method for the dyeing of yarn from a supercritical fluid

Details Method for the dyeing of yarn from a supercritical fluid Method for the dyeing of yarn from a supercritical fluid

1997-11-18

1999-08-17

Einsmann, Margaret

Bleaching and dyeing; fluid treatment and chemical modification

Confined gas phase superatmospheric pressure dyeing process

8552, 8576, 8580, 81491, 8155, 81492, D06P 100, D06P 352, D06P 190, D06P 1613

Patent

active

059387947

ABSTRACT:
A method for the dyeing of a textile substrate, particularly for the dyeing of a polyester yarn wound upon a bobbin, is described, in which the textile substrate to be dyed is arranged within an autoclave and superfused, respectively perfused, with a supercritical fluid containing at least one dye, whereby an auxiliary fluid is loaded with the at least one dye, whereby the auxiliary fluid in brought into contact with the supercritical fluid and whereby hereafter the textile substrate is perfused, respectively superfused, with the supercritical fluid containing the at least one dye.

REFERENCES:
patent: 5250078 (1993-10-01), Saus et al.
patent: 5298032 (1994-03-01), Schlenker et al.
patent: 5340614 (1994-08-01), Perman et al.

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