Hot melt flexographic inks and method of preparing same

Details Hot melt flexographic inks and method of preparing same Hot melt flexographic inks and method of preparing same

2005-01-11

2005-01-11

Shosho, Callie (Department: 1714)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Processes of preparing a desired or intentional composition...

C524S275000, C524S487000, C524S489000, C524S556000, C524S563000

Reexamination Certificate

active

06841590

ABSTRACT:
Solid, solvent-free inks are provided for use in hot melt flexographic printing. The ink is composed of a pigment; a thermoplastic binder which is an ethylene copolymer, a hydrocarbon resin, or a combination thereof; a wax which is a highly branched hydrocarbon wax, a polyethylene homopolymer wax, an oxidized polyethylene wax, an animal wax, a vegetable wax or combinations thereof; a solid linear alcohol; and, a dispersing agent. The ink may also contain a solid plasticizer. The solid ink has a melting point of about 75° C. or greater, and when heated to a temperature between about 90° C. and about 135° C., a molten ink is formed which has a viscosity between about 100 cps and about 1200 cps. The solid inks are used in melt flexographic printing by heating the ink to a temperature greater than about 90° C. to form a molten ink which has a viscosity between about 100 cps and about 1200 cps; applying the molten ink to the surface of a heated anilox roller in operational contact with a heated flexographic printing plate; and printing the applied molten ink from the printing plate onto a substrate such as conventional print stock, polymeric films, metal sheets, etc.

REFERENCES:
patent: 4066585 (1978-01-01), Schepp et al.
patent: 4280939 (1981-07-01), Johnson
patent: 4853427 (1989-08-01), Herten et al.
patent: 4865913 (1989-09-01), Takeuchi et al.
patent: 4889560 (1989-12-01), Jaeger et al.
patent: 4946508 (1990-08-01), Schwartz et al.
patent: 4946509 (1990-08-01), Schwartz et al.
patent: 5024894 (1991-06-01), Chien
patent: 5062894 (1991-11-01), Schwartz et al.
patent: 5112398 (1992-05-01), Kruse
patent: 5560765 (1996-10-01), Sawada
patent: 5574078 (1996-11-01), Elwakil
patent: 5593486 (1997-01-01), Oliver et al.
patent: 6106602 (2000-08-01), Ouchi et al.
patent: 6283031 (2001-09-01), Kakuta et al.
patent: 6645282 (2003-11-01), Stone et al.
patent: 20030108689 (2003-06-01), Tan et al.
Ethylene Homopolymers-Polywax [online]. Baker Hughes Corporation, 2003. Retrieved from the Internet: <URL: www.bakerhughes.com/bakerpetrolite/polymers/ethylene_homopolymers>.

Affiliated with

Also associated with

Rating

Hot melt flexographic inks and method of preparing same does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Hot melt flexographic inks and method of preparing same, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hot melt flexographic inks and method of preparing same will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3435835