Method of rendering an electrocoagulation printed image water-fa

Details Method of rendering an electrocoagulation printed image water-fa Method of rendering an electrocoagulation printed image water-fa

1997-01-21

1997-11-25

Gorgos, Kathryn L.

Chemistry: electrical and wave energy

Processes and products

Electrophoresis or electro-osmosis processes and electrolyte...

204483, 204508, 101DIG29, C25D 1304

Patent

active

056908016

ABSTRACT:
An improved electrocoagulation printing method comprising the steps of (a) providing a positive electrolytically inert electrode having a continuous passivated surface moving at substantially constant speed along a predetermined path, the passivated surface defining a positive electrode active surface; (b) forming on the positive electrode active surface a plurality of dots of colored, coagulated colloid representative of a desired image, by electrocoagulation of an electrolytically coagulable colloid present in an electrocoagulation printing ink comprising a liquid colloidal dispersion containing said electrolytically coagulable colloid, a dispersing medium, a soluble electrolyte and a coloring agent; and (c) bringing a substrate into contact with the dots of colored, coagulated colloid to cause transfer of the colored, coagulated colloid from the positive electrode active surface onto the substrate and thereby imprint the substrate with the image. The improvement resides in treating the dots of colored, coagulated colloid transferred onto the substrate in step (c) with a crosslinking agent so as to substantially completely crosslink the colored, coagulated colloid and thereby render the printed image water-fast.

REFERENCES:
patent: 3010883 (1961-11-01), Johnson et al.
patent: 3145156 (1964-08-01), Oster
patent: 4661222 (1987-04-01), Castegnier
patent: 4895629 (1990-01-01), Castegnier
patent: 5449392 (1995-09-01), Castegnier et al.
patent: 5538601 (1996-07-01), Castegnier

Affiliated with

Also associated with

Rating

Method of rendering an electrocoagulation printed image water-fa does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method of rendering an electrocoagulation printed image water-fa, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of rendering an electrocoagulation printed image water-fa will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2103619