Polymeric sheets and articles wrapped therewith
AssigneePolysack Plastic Industries Ltd.
InventorsMaor Segal, Yoav Guthman, Aharon Ben-Soussane, Yiftach Nir
Life of this patent
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Abstract
A polymeric sheet having low density and comprising a low to non-existent amount of cyclic olefinic polymers (COP) and/or cyclic olefinic copolymers (COC). The overall density of the sheet may be lower than water. The sheet may be stretched and then heat shrinked onto an article. The sheet may be used as a label or package to wrap articles therewith.
Claims18
A method for labeling an article with a polymeric sheet comprising:
- wrapping the polymeric sheet around the circumference of the article to obtain a labeled article;
- and
- heating the labeled article to 100° C. or less, to allow the polymeric sheet to shrink by at least 20% of its original dimension along a machine direction thereof, to thereby follow the contours of the article,
- the polymeric sheet having a density less than 1 g/cm.
A method for labeling an article having at least two portions with cross-sectional diameters that differ from one another by more than 20%, the method comprising:
- (a) preparing a polymeric sheet, the polymeric sheet:
- being monoaxially stretched along the machine direction,
- being heat shrinkable along the machine direction by at least 20% of its original dimension,
- being transparent after shrinking, and having, prior to and after shrinking, a density of less than 1 g/cm3;
- (b) wrapping the polymeric sheet onto an outer surface of the article to obtain a labeled article;
- and
- (c) monoaxially heat shrinking the labeled article at a temperature of about 100° C. to circumferentially envelop the at least two portions of the outer surface to closely and substantially uniformly follow the portions' contour.
Dependencies are inferred from the claim text.