The invention relates to a security pigment of core-shell particles, comprising a core based on a thermoplastic material, a shell based on a condensation polymer, and an organic or metalorganic feature substance present in dissolved or finely distributed form in the core, wherein the mass fraction of the shell amounts to more than 25%, preferably 50%, particularly more than 100%, in relation to the mass of the core. The invention further relates to a method for producing the core-shell particles and to value documents having the core-shell particles.
本发明涉及一种核壳颗粒防伪
颜料,它包括一个基于热塑性材料的核、一个基于缩聚聚合物的壳和一种以溶解或精细分布形式存在于核中的有机或
金属有机特征物质,其中壳的质量分数相对于核的质量大于 25%,最好大于 50%,特别是大于 100%。本发明还涉及生产核壳颗粒的方法和具有核壳颗粒的价值文件。