58567 ⎘
Duplicating or marking methods; Sheet materials for use therein using pressure to make a masked colour visible, e.g. to make a coloured support visible, to create an opaque or transparent pattern, or to form colour by uniting colour-forming components characterised by the use of microcapsules; Special solvents for incorporating the ingredients Solvents
Material composition for pressure measurement, material for pressure measurement, and material set for pressure measurement
#2Material composition for pressure measurement, material for pressure measurement, and material set for pressure measurement
#3Latent image systems, developers, and blockers therefor