process for producing fine enhanced fine particle metal flakes having brightness and color intensity, first coating process containing enhanced flakes, reflective metal flakes, multilayer laminate and resin coating

摘要

PROCESS FOR PRODUCTION OF FINAL FINE PARTICULATED FINE PARTICULAR FLAKES WITH BRIGHTNESS AND COLOR INTENSITY, FIRST COATING FORMATION PROCESS CONTAINING REFLECTED METAL FLAKES AND REFINED METAL FLAVES. The present invention relates to a process for preparing a fine material in enhanced fine particles having high levels of brightness and color intensity. The process comprises forming a free coating onto a flexible polymeric carrier film, enhancing the free coating with a diffraction mesh pattern that is "monoruled" from an angle above 45 °, vacuum metallizing the free surface enhanced with a highly reflective metal such as aluminum, and solubilizing the metallized free coating in a solvent to remove the metal from the carrier to form enhanced metal flakes that reproduce the enhancement pattern. The flakes are coated with the solvent and free coating polymer solution while avoiding high shear, particle sizing or other energy applications that would excessively break the flakes so that the flake particle size D50 is maintained at , or above, 75 microns. The flakes have application for coatings and printing inks that produce extremely high gloss characterized as an optically apparent gloss or sparking effect in combination with high color intensity or chromaticity.