| abstract |
The present invention relates to a paste ink for an engraved steel die printing process comprising an infrared absorbing material and having a viscosity value at 40 占 폚 of at least 3 Pa 占 퐏, preferably at least 5 Pa 占 퐏, Containing elemental compounds whose IR absorption is the result of electron transfer within the d-shell of a transition element atom or ion.n n n n Sculptured steel die printing, electronic transfer, infrared absorbing material, paste phase consistency |