| 摘要 |
A method for producing an information carrier comprising the steps of : (1) providing an information carrier precursor comprising: a rigid sheet or support; a receiving layer configuration comprising at least one constituent layer; and a layer or element capable of a human-readable or machine-readable change upon absorbing UV, visible or IR radiation, wherein at least one layer of the receiving layer configuration is opaque, porous, has the capability of being rendered substantially transparent upon penetration by a lacquer provided at the outermost surface of the receiving layer configuration and comprises at least one pigment and at least one binder; (2) realizing a temporary transparentization pattern by applying a vaporizable liquid pattern-wise or integrally to the receiving layer configuration; (3) writing with a light source a first pattern in the layer or element capable of human readable or machine-readable change; and in any order evaporating the vaporizable liquid; applying a second pattern to the outermost layer of the receiving layer configuration; optionally, in any order applying a third pattern to the outermost layer of the receiving layer conf igurationand and realizing a permanent transparentization pattern by applying a lacquer pattern-wise or integrally to the receiving layer configuration; with the proviso that the lacquer is applied after the vaporizable liquid has been evaporated, thereby producing an information carrier. |
