The invention discloses a co-extruded soft-touch functional BOPP film and a preparation method thereof, characterized by comprising a core layer, a soft-touch functional upper surface layer arranged above the core layer, and an anti-blocking lower surface layer arranged below the core layer. The main body of the soft-touch functional upper surface layer is a modified polyurethane elastomer, the upper end surface of the upper surface layer is provided with a concave-convex structure, and the soft-touch functional upper surface layer contains expanded microporous masterbatch. The beneficial effects of the invention are as follows: by using modified thermoplastic elastomer (TPE) material and adopting a one-step extrusion and stretching molding process, a soft-touch functional layer product with a velvet touch is prepared. The creative addition of expanded masterbatch generates hollow cavities and surface protrusions during stretching, forming a microscopic hollow concave-convex spherical morphology on the surface, achieving superior velvet-smooth soft-touch effect. When the contact surface is pressed, the hollow microspheres deform to a certain extent and elastically feed back a certain resilience to the user, and are not easy to stain fingerprints and oil stains.
Country Code: CN
Application Number: CN202010565626.2
