ClassID:

58582

B41M5/286 - CPC Classification

Classification description:

Duplicating or marking methods; Sheet materials for use therein; Thermography Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used using thermochromic compounds or layers containing liquid crystals, microcapsules, bleachable dyes or heat- decomposable compounds, e.g. gas- liberating using compounds undergoing unimolecular fragmentation to obtain colour shift, e.g. bleachable dyes

Recent Application in this class: