Method of dyeing polycapronamide textile articles using two acid

Details Method of dyeing polycapronamide textile articles using two acid Method of dyeing polycapronamide textile articles using two acid

1985-04-17

1987-05-26

Clingman, A. Lionel

Bleaching and dyeing; fluid treatment and chemical modification

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

Mixed dyes, noncomplexed

8680, 8924, 8400, 8641, 8929, D06P 324, D06P 139

Patent

active

046682414

ABSTRACT:
A method of dyeing textile materials of polycapronamide, enabling low temperature dyeing conditions and process duration times which do not exceed the art standards, is characterized by the following combined features: (a) use of at least two discrete combinations of dyestuffs, which show different kinetic behaviors from each other; (b) maintenance of an alkaline pH at tapering values, in the extreme down to neutral; (c) use of exclusively anionic dyeing aids; and (d) maintenance through the various method steps of a maximum temperature as high as 60.degree. C., preferably as 40.degree. C.
Perfectly uniform dyeing is achieved through the utilization of conventional apparata and dyeing method procedures.

REFERENCES:
patent: 3980428 (1976-09-01), Fabbri et al.
patent: 4252531 (1981-02-01), Daeuble et al.
patent: 4381186 (1983-04-01), Magni et al.
patent: 4445905 (1984-05-01), Schaetzer et al.

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