Global Patent Index - EP 1057653 A1

EP 1057653 A1 20001206 - Method of producing color changes

Title (en)

Method of producing color changes

Title (de)

Erzeugungsverfahren zur Farbänderung

Title (fr)

Procédé de changement de couleur

Publication

EP 1057653 A1 20001206 (EN)

Application

EP 99870112 A 19990604

Priority

EP 99870112 A 19990604

Abstract (en)

Color changes in a medium are achieved using electrochemically sensitive materials. Application of electric potential to electrodes in proximity to the materials induces a color change in the materials. A material may include electrochemically sensitive components such as pH indicators, Red-ox indicators, metalloindicators that are not red-ox systems, bleaching agents, pigments or combinations of these components. <IMAGE>

IPC 1-7

B41M 5/20

IPC 8 full level

B41M 5/20 (2006.01); B41M 7/00 (2006.01)

CPC (source: EP)

B41M 5/20 (2013.01)

Citation (search report)

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

DOCDB simple family (publication)

EP 1057653 A1 20001206

DOCDB simple family (application)

EP 99870112 A 19990604