Face films and pressure sensitive laminates for printing
AssigneeAvery Dennison Corporation
InventorsDavid Bland, Wen-Li A. Chen, Michael Ramsay, Shanshan Wang
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Abstract
Microporous structures in face films are described for improving printability of the films. Also described are laminates and pressure sensitive adhesive laminates including the microporous structured face films. Various related methods are additionally described.
Claims31
A polymeric film, the film defining a first face for receiving print, and a second oppositely directed face, the film including a microporous structure extending along at least the first face, wherein the microporous structure has a porosity within a range of from 40% to 75%, the microporous structure includes a plurality of interconnected pores having a pore size distribution within a range of from 2 microns to 10 nm, the microporous structure has a thickness of at least 20 microns as measured from the first face, and the film comprises a beta polypropylene crystal phase.
A polymeric film, the film defining a first face for receiving print, and a second oppositely directed face, the film including a microporous structure extending along at least the first face, wherein the microporous structure has a porosity within a range of from 40% to 75%, the microporous structure includes a plurality of interconnected pores having a pore size distribution within a range of from 2 microns to 10 nm, the microporous structure has a thickness of at least 20 microns as measured from the first face, and the film comprises a beta polypropylene crystal phase wherein the film is stretched at a stretch ratio of within a range of from 1:1.1 to 1:10.
Dependencies are inferred from the claim text.