Thermally sensitive recording medium for forming multi-colors

Details Thermally sensitive recording medium for forming multi-colors Thermally sensitive recording medium for forming multi-colors

B - Operations, Transporting

41

M

B41M 5/34 (2006.01) B41M 5/30 (2006.01)

Patent

CA 2478521

A thermally sensitive recording medium to form multi-colors contains a complex fine particle containing at least one dye precursor and a multivalence isocyanate polymer. The multivalence isocyanate polymer contains at least one of 4,4'-diisocyanato-3,3'-dimethyl-1,1'-biphenyl and polymethylene polyphenyl polyisocyanate.

L'invention se rapporte à un support d'enregistrement thermique polychrome caractérisé par le fait qu'au moins un précurseur de colorant et un polymère d'un composé polyisocyanate constituent des particules fines composites et par le fait que le composé polyisocyanate contient 4,4'-diisocyanato-3,3'-diméthyl-1,1'-biphényl et/ou polyméthylène polyphényle polyisocyanate.

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