首页>
外国专利>
Steel gravure method for the production of a security document, steel gravure plate and semi-product for the same and method for production thereof
Steel gravure method for the production of a security document, steel gravure plate and semi-product for the same and method for production thereof
展开▼
机译:用于生产防伪文件的钢凹版印刷方法,用于其的钢凹版印刷板和半成品及其生产方法
展开▼
页面导航
摘要
著录项
相似文献
摘要
A method for producing a security document having printed image 1 produced by steel intaglio printing and embossed microstructures 2 of an order of magnitude of less than 100 microns is carried out by one printing plate 8 on which both the steel intaglio structures and the microstructures are present. The parts of the microstructures closest to printing plate surface 9 are located 20 to 100 microns below the printing plate surface so that they are not touched and destroyed by the wiping cylinder. Alternative methods for producing a steel intaglio printing plate with integrated microstructures are provided. The microstructures can be used for embossing a diffractive relief or a blind embossing.
展开▼