Overdyeable pigmented polymeric fiber and yarns and articles...

Details Overdyeable pigmented polymeric fiber and yarns and articles... Overdyeable pigmented polymeric fiber and yarns and articles...

2008-01-22

2008-01-22

Douyon, Lorna M. (Department: 1751)

Plastic and nonmetallic article shaping or treating: processes

With incorporating dye susceptible material or dyeing workpiece

C008S404000, C008S445000, C008S550000, C008S618000, C008S636000, C008S637100, C008S924000

Reexamination Certificate

active

07320766

ABSTRACT:
Dyed yarns typically have inferior color fastness compared with pigmented yarns. However, dyeing offers a virtually infinite selection of colors, flexibility and more uniformity than constructions of pigmented yarns in residential carpet and other yarn applications, such as apparel. It has been found that relatively small amounts of pigment (10 to 1000 ppm) incorporated into polymeric fibers, and particularly nylon fibers used in carpets, creates lightly pigmented yarns which, when overdyed, are highly uniform and have a higher degree of apparent dye light fastness compared to normal dyed yarns. This effect is observable for both anionic and cationic polyamide polymers, and dyeing of these slightly pigmented yarns can be conducted to produce yarns of almost any color of greater depth than the base yarn.

REFERENCES:
patent: 4087494 (1978-05-01), Reinehr et al.
patent: 5066308 (1991-11-01), Yeh et al.
patent: 5108684 (1992-04-01), Anton et al.
patent: 5445653 (1995-08-01), Hixson et al.
patent: 5562871 (1996-10-01), Hoyt et al.
patent: 5756020 (1998-05-01), Locke et al.
patent: 5830572 (1998-11-01), Anton et al.
patent: 5908663 (1999-06-01), Wang et al.

Affiliated with

Also associated with

Rating

Overdyeable pigmented polymeric fiber and yarns and articles... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Overdyeable pigmented polymeric fiber and yarns and articles..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Overdyeable pigmented polymeric fiber and yarns and articles... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2791737