| 摘要 |
<p>Disclosed, among others, are a multilayer film that permits thermal printing or printing by application of pressure from pressure-applying devices. The structure includes an extruded, outer skin layer and an extruded internal pigment layer. Further, the structure includes an extruded image-rendering layer intermediate to the outer skin layer and the pigment layer, the image-rendering layer including a collapsible layer structure, sensitive to the application of temperature and/or pressure, having dispersed therein a plurality of voids, the collapsible layer structure in uncollapsed condition being substantially opaque to obscure from view the pigment layer there beneath. The collapsible layer structure is selectively collapsible by application of temperature and/or pressure to temporarily elevate localized temperature or pressure at the collapsible layer structure at select locations, so as to provide substantially transparent collapsed structure at the select locations, the pigment layer being visible through the substantially transparent collapsed structure.</p> |
