Minimizing ozone fading in dyed polyamides by treating same with

Details Minimizing ozone fading in dyed polyamides by treating same with Minimizing ozone fading in dyed polyamides by treating same with

1980-05-19

1981-12-08

Tungol, Maria P.

Bleaching and dyeing; fluid treatment and chemical modification

Organic additive for dye composition, dye composition...

Six-membered hetero ring consisting of one nitrogen and five...

8585, 260 458N, D06P 1642, C08L 534, D06P 502, B32B 2702

Patent

active

043045685

ABSTRACT:
There is disclosed a method for minimizing ozone fading in dyed polyamides by treating the dyed polyamide with a substituted piperidine thiourea of the formula ##STR1## where R is a lower alkyl radical having 1-5 carbon atoms or phenyl. The treated dyed polyamides, preferably in fiber form, display minimize ozone fade without a reduction in light stability.

REFERENCES:
patent: 3584993 (1971-06-01), Myles et al.
patent: 3705166 (1972-12-01), Murayama et al.
patent: 3822996 (1974-07-01), Lofquist et al.
patent: 3828052 (1974-08-01), Holt et al.
patent: 3904581 (1975-09-01), Murayama et al.
patent: 3917449 (1975-11-01), Wells et al.
patent: 4105404 (1978-08-01), Lofquist et al.

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