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US 11,149,367 B2Granted
Regenerated cellulose fiber
AssigneeKelheim Fibres GmbH
InventorsHaio Harms, Ingo Bernt, Walter Roggenstein
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Abstract
The invention relates to a regenerated cellulose fiber in the form of a solid viscose flat fiber having the following properties: The fiber consists of cellulose by more than 98%. The ratio of width B to thickness D of the fiber is 10:1 or higher. The fiber surface is essentially smooth. The fiber is essentially transparent. The fiber according to the invention is particularly suitable for the production of paper.
Claims6
A regenerated cellulose fiber in the form of a solid viscose flat fiber, wherein the fiber comprises the following properties:
- the fiber comprises more than 98% cellulose;
- the ratio of width B to thickness D of the fiber is 10:1 or higher;
- the fiber surface is essentially smooth;
- the fiber is transparent;
- the fiber is a staple fiber with a length from 2 mm to 70 mm;
- and
- two faces of the fiber which define the fiber's broadside are parallel to each other across an area of at least 90% of a surface of the fiber.
4 more elements
Dependencies are inferred from the claim text.