Bleaching and dyeing; fluid treatment and chemical modification – Drawing or stretching of preform with dyeing – process or...
Patent
1996-03-08
1997-05-20
Einsmann, Margaret
Bleaching and dyeing; fluid treatment and chemical modification
Drawing or stretching of preform with dyeing, process or...
8494, 8922, D06P 316, D06P 354
Patent
active
056308493
ABSTRACT:
The invention is a method of dyeing aliphatic polyester filaments with a disperse dye by selecting a dyeing temperature, dyeing pH, and dyeing time in such a way that the weight average molecular weight of the aliphatic polyester filament has a lowering ratio of 20% or less.
The invention is a method for dyeing the aliphatic polyester filament with good reproducibility and level dyeing property while substantially maintaining the molecular weight and the essential excellent properties of the aliphatic polyester filament, and can provide dyed articles which have high strength, are excellent in level dyeing property and color fastness to light, and have various hues.
REFERENCES:
patent: 3502422 (1970-03-01), Miller et al.
patent: 4531947 (1985-07-01), Engelhardt
patent: 5201922 (1993-04-01), Seto et al.
Ajioka Masanobu
Ghoda Isamu
Kameoka Taiji
Kawamura Isamu
Suizu Hiroshi
Einsmann Margaret
Mitsui Toatsu Chemicals Inc.
LandOfFree
Dyeing method does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Dyeing method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dyeing method will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1721194