| 摘要 |
A profiled surface (4a) of a sheet (1) made of thermoformable material is obtained by passing this sheet between the two rollers (2, 3) of at least one pair of rollers, this pair of rollers comprising a roller (2) which is profiled, heated and driven, whereas the second roller (3), which has a smooth surface, is neither driven nor heated. During the production of a printed design (4a) consisting of the superposition of the profiles of the two profiled rollers (2, 2a), the first profiled roller (2) is driven and heated whereas the second profiled roller (2a) is not heated and the other two rollers (2a, 3a) of each pair of rollers are neither driven nor heated. <IMAGE> |
