RIBBED FILM STRUCTURES WITH PIGMENT CREATED VISUAL CHARACTERISTICS

摘要

In one example embodiment, a film includes a coextruded structure having both an extruded ribbed skin layer that includes a plurality of ribs, and a core layer. The ribs are spaced apart by a web that is integral with the ribs. The film also includes a coloring agent that is substantially more apparent in the ribs than in the web, such that a contrast in color and/or color intensity between the ribs and the web is visible.

主权项

1. A method for producing a film, comprising:
adding a coloring agent to one of a first thermoplastic resin or a second thermoplastic resin; coextruding the first thermoplastic resin into a first layer of a coextruded film and the second thermoplastic resin into a second layer of the coextruded film that abuts the first layer; forming, during coextruding, a plurality of extruded ribs into the coextruded film that are spaced apart from each other by thinner portions that are integral with the extruded ribs such that:
the extruded ribs have a color of the coloring agent; andthe thinner portions have a different color than the color of the coloring agent.