| 摘要 |
FIELD: polymer material. ^ SUBSTANCE: invention relates to polymeric multilayer fluorescently stained particles widely applicable for distribution of visible information and provides sheet-shaped fluorescence-emitting articles. These have at least two film layers, each of which contains fluorescent dye in polymer matrix. Stained film of the upper layer is characterized by higher resistance to UV emission than stained sublayer film, and article itself has specified fluorescent coloration differing both from coloration of said stained fluorescent sublayer film and from coloration of said stained fluorescent upper layer. Manufacturing process for such articles is also described. Articles may optionally contain light-returning elements suitable as warning signs such as pedestrian crossing signs and signs indicating school zones, which emit fluorescent yellow color. ^ EFFECT: ensured resistance to weather conditions, increased color durability, and improved coloration characteristics regulated by industrial standards for particular conditions. ^ 37 cl, 14 dwg, 3 tbl, 11 ex |
