Patent ID: 9554949
Date: 2017-01-31
CPC Classifications: A61F,B26D,B26F,B29C,Y10T

Claim:
1. An apertured film comprising an apertured film surface area comprising a pattern of apertures and lands surrounding the apertures, the lands comprising a land area; the land area comprising a plurality of light trap micro-pits randomly positioned on the land area with uniform density across the land area and a total reflective area, each of the light trap micro-pits comprising an opening with a sidewall descending from the opening to a bottom; wherein each of the openings of the light trap micro-pits comprises an irregular perimeter with an average diameter and a depth greater than half the average diameter of the micro-pit divided by tan 37.5, wherein the apertured film surface area comprises a 75° gloss in the machine direction of the apertured film of less than 4.0.