| 摘要 |
1,235,553. Pressure-sensitive record materials. RANK XEROX Ltd. 10 June, 1968 [16 June, 1967], No. 27469/68. Heading D2B. [Also in Division G2] Deformation images with or without colour changes are formed by providing a layer of liquid crystalline material and imagewise exposing said layer to a mechanical force by means of a stylus, a shaped character head, or pressurised gas applied through a stencil; or to an electrical force by means of a shaped electrode; a modulated electron beam or an ion gun. The liquid crystalline materials specified are cholesterol esters, anisaldazine, p-azoxyphenelole, p-butoxy benzoic acid, p-methoxy-cinnamic acid. |
