Printable film
AssigneeTaghleef Industries Inc.
InventorsEric Propst, Christoph Michel
Life of this patent
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Abstract
An extruded multilayer film includes a top layer comprising a blend of a polyolefin and adsorbent silica. The adsorbent silica is 5% or more of the blend and the polyolefin is 95% or less of the blend. The multilayer film is oriented in at least one direction to cause fracturing of the top layer to provide a microporous surface exposing the adsorbent silica gel. The fractured top layer is receptive to receiving a printing ink on an exposed surface thereof with enhanced pigment entrapment and rapid ink drying. A single layer film in the form of the top layer, and also oriented in at least one direction also constitutes a part of this invention.
Claims17
A multilayer extruded film comprising
- a polymeric base layer, and
- at least one exposed layer comprising:
- 5 to 30 wt. % of an adsorbent silica gel having a pore size greater than 30 angstroms;
- and
- at least one polymer selected from the group consisting of polypropylene, propylene/ethylene copolymer, propylene/ethylene/butene terpolymer, maleated polypropylene and blends thereof,
- wherein the film is oriented in at least one direction and the at least one exposed layer while exposed has a water contact angle of at least 100 degrees and a surface tension of at least 35 dynes, and
- wherein the at least one exposed layer is at least one printable layer.
Dependencies are inferred from the claim text.