阅读说明：本技术 制备金属纳米颗粒层的方法及其在装饰或安全元件中的用途 (Method for producing a metal nanoparticle layer and use thereof in decorative or security elements ) 是由 N·A·格里戈连科 M·里歇特 于 2018-05-07 设计创作，主要内容包括：本发明涉及一种制备包含银纳米颗粒的薄层的方法，所述纳米颗粒是作为涂覆或印刷方法的一部分直接在基材上产生的。所述层在透射和反射时显示出不同的颜色。所述层不显示出金属层的典型导电性，因为颗粒基本上是未烧结的离散颗粒。本发明进一步涉及装饰和安全元件。当将所述层施加至安全元件(例如全息图)上时，所获得的产品还在反射和透射时显示出不同的颜色，显示出极其明亮的光学可变图像(OVD图像)以及高纯度和对比度。取决于层厚，呈现或高或低强度的金属外观。(The present invention relates to a method for preparing a thin layer comprising silver nanoparticles, which nanoparticles are produced directly on a substrate as part of a coating or printing process. The layers exhibit different colors in transmission and reflection. The layer does not exhibit the typical conductivity of a metal layer because the particles are essentially discrete particles that are not sintered. The invention further relates to a decorative and security element. When the layer is applied to a security element, such as a hologram, the product obtained also shows different colours in reflection and transmission, shows an extremely bright optically variable image (OVD image) and high purity and contrast. Depending on the layer thickness, a metallic appearance of either high or low strength is present.)