(19)
(11) EP 1 084 828 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
04.04.2001 Bulletin 2001/14

(43) Date of publication A2:
21.03.2001 Bulletin 2001/12

(21) Application number: 00120006.2

(22) Date of filing: 14.09.2000
(51) International Patent Classification (IPC)7: B41C 1/10
(84) Designated Contracting States:
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
Designated Extension States:
AL LT LV MK RO SI

(30) Priority: 15.09.1999 CA 2282188

(71) Applicant: TOYO INK MFG. CO., LTD.
Tokyo (JP)

(72) Inventor:
  • Castegnier, Adrien
    Outremont, Quebec H2V 2Z2 (CA)

(74) Representative: Koepe, Gerd L. 
Koepe, Fiesser & Partner GBR, Radeckestrasse 43 EG
81245 München
81245 München (DE)

   


(54) Intermittent electrocoagulation printing method and apparatus


(57) An image is reproduced and transferred onto a substrate by (a) providing a positive 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 ink representative of a desired image, by electrocoagulation of an electrolytically coagulable polymer present in an electrocoagulation printing ink containing a coloring agent; and (c) bringing a substrate into contact with the dots of colored, coagulated ink to cause transfer of the colored, coagulated ink from the positive electrode active surface onto the substrate and thereby imprint the substrate with the image.






Search report