Waterfast inks

Details Waterfast inks Waterfast inks

1993-11-12

1994-11-15

Klemanski, Helene

Compositions: coating or plastic

Coating or plastic compositions

Metal-depositing composition or substrate-sensitizing...

106 20R, 8551, C09D 1102

Patent

active

053644620

ABSTRACT:
The present invention provides improved dye based ink solutions for use in ink jet printing. In one embodiment of the invention, an aqueous ink with improved water solubility and waterfastness is provided that includes a dye component and a hydroxyethylated polyethylene imine polymer, wherein the hydroxyethylated polyethylene imine polymer has incorporated therein approximately 10 to 55 percent hydroxyethyl groups by weight. Alternative embodiments of the invention include the use of hydroxypropylated polyethylene imine polymers or epichlorohydrin-modified polyethylene imine polymers. In addition, aprotic solvents such as dimethyl sulfoxide and tetramethylene sulfone may be added to improve the solubility and stability of the dye solution, and humectants such as 2-pyrrolidone may be added. According to the methods of the invention, an ink with improved stability, jetting characteristics, solubility and waterfastness may be provided.

REFERENCES:
patent: 3753931 (1973-08-01), Raspanti
patent: 4076497 (1978-02-01), Freyberg et al.
patent: 4150997 (1979-04-01), Hayes
patent: 4155768 (1979-05-01), Adams
patent: 4167393 (1979-09-01), de Roo
patent: 4197135 (1980-04-01), Bailey et al.
patent: 4238234 (1980-12-01), Lang
patent: 4267088 (1981-05-01), Kempf
patent: 4299630 (1981-11-01), Hwang
patent: 4383859 (1983-05-01), Moore et al.
patent: 4520143 (1985-05-01), Jellinek
patent: 4585484 (1986-04-01), Haruta et al.
patent: 4588413 (1986-05-01), Keil et al.
patent: 4601756 (1986-07-01), Chiba et al.
patent: 4627875 (1986-12-01), Kobayashi et al.
patent: 4659382 (1987-04-01), Kang
patent: 4664708 (1987-05-01), Allen
patent: 4789400 (1988-12-01), Solodar et al.
patent: 4791165 (1988-12-01), Bearss et al.
patent: 4793264 (1988-12-01), Lin et al.
patent: 4836851 (1989-06-01), Pawlowski et al.
patent: 5017224 (1991-05-01), Tomita et al.
patent: 5017644 (1991-05-01), Fuller et al.
patent: 5019164 (1991-05-01), Tomita et al.
Kang, H. R. (19910 J. Imag. Sci 35 pp. 179-201.

Affiliated with

Also associated with

Rating

Waterfast inks does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Waterfast inks, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Waterfast inks will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1094483