THIN-SHEET MATERIAL WITH VIEWPOINT-DEPENDENT COLOUR AND COMPRISING MULTIPLE DISCRETE ELEMENTS Russian patent published in 2013 - IPC B32B3/28 B32B3/30 B44F1/08 

FIELD: process engineering.

SUBSTANCE: invention relates to thermoplastic films used as components of absorbing articles, packages, wrapping materials, etc. It includes first and second thin-sheet materials. Note here that first thin-sheet material comprises first polymer with first refracting properties while second thin-sheet material features second refracting properties. Painted thin-sheet material includes dye with interference effect built in, at least, one layer of painted thin-sheet material. Discrete lengthy elements feature diameter smaller than 500 mcm. Discrete lengthy elements feature H:D ratio making, at least, 0.2. Note here that proposed material comprises, at least 95 lengthy elements per 1 cm².

EFFECT: expanded process performances.

26 cl, 28 dwg, 6 ex