SYSTEM AND METHOD FOR MAKING A TEXTURED FILM

摘要

A system and a method for making a web having a complex topography. A substrate having coatable material is contacted by a face-side roller having grooves set into the major surface thereof, the coatable material is then split between the face side roller and the substrate, resulting in a textured surface having a first area associated with the splitting from the major surface, and a second area resulting from splitting associated with areas of the face-side roller having grooves. Raised ridge features produced from the splitting step interconnect portions within the first area, and portions within the second area, and in between the first and second area.

主权项

1. A method of producing a web with a complex topography comprising:
applying a first coatable material to a first major surface of a substrate; changing the viscosity of the first coatable material from a first viscosity to a second viscosity to form a second coatable material; contacting the second coatable material on the substrate to a face-side roller having a first major surface and a plurality of roll features set into the first major surface of the face-side roller;splitting the second coatable material between the substrate and the face-side roller, to impart a resultant texture in the second coatable material on the substrate, wherein the resultant texture comprises a first area associated with splitting between the first major surface of the face-side roller and the substrate, and a second area resulting from splitting between an area on the face side roller associated with at least one of the roll features and the substrate, and wherein the resultant texture comprises an interconnected network of raised ridge features within at least the second area; and,
hardening the textured second coatable material to produce the web with an ensuant textured surface.