Paper aimed at forming a u-straw
AssigneeAhlstrom Oyj
InventorsBertrand Morales, John Blanz
Life of this patent
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Abstract
The invention relates to drinking U-straws and more particularly to a paper for manufacturing drinking U-straws, which is environmental friendly, bio-degradable and is able to be formed in the shape of a bent straw with an accordion-like structure at the bend. The paper has high water resistance as well as high strength and elongation properties compatible with the intended use. In particular, the paper for forming a U-straw includes: •between 10 and 50 dry wt % of first fibers having a length of between 1.4 mm and 2.5 mm; •between 40 and 80 dry wt % of second fibers having a length of between 0.3 mm and 0.8 mm; and •between 1 and 6 dry wt % of a sizing agent.
Claims11
A U-straw characterized in that it is made from at least one layer of a paper, wherein the paper comprises:
- between 10 and 50 dry wt % of first fibers having a length of between 1.4 mm and 2.5 mm;
- between 40 and 80 dry wt % of second fibers having a length of between 0.3 mm and 0.8 mm;
- between 1 and 6 dry wt % of a sizing agent;
- and
- starch, wherein the starch is present in the paper in an amount of at most 1 dry wt %;
- said paper having:
- an elongation in the Cross Direction of between 4 and 8%.
Dependencies are inferred from the claim text.