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US 12,521,960 B2Granted
Method for producing a controlled tear-open and/or tear-off aid for fiber-based web material
AssigneeInterlas GmbH & Co. KG
InventorsBernhard Lang, Christian Lang, Patricia Hermann
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Abstract
The present invention relates to a method for producing a guided tear-open and/or tear-off aid for paper and/or other fiber-based web materials. The present invention is distinguished in that the material of the paper and/or other fiber-based web material for producing a scoring line is partially subtracted along the guided tear-open and/or tear-off aid to be produced thereon at least from one web side.
Claims9
A method for producing a guided tear-open and/or tear-off aid for paper and/or other fiber-based web materials, comprising:
- providing the paper and/or other fiber-based web material with at least two fiber layers,
- producing at least two scoring lines in at least one planar side of the fiber-based web material in such a way that the scoring line severs at least one fiber layer,
- wherein for producing the scoring lines, material is subtracted to form v-shaped grooves and the scoring lines are disposed on both planar sides of the paper and/or other fiber-based web material,
- wherein a planar side of the fiber-based web material has two adjacently extending scoring lines, and the spacing between the adjacently extending scoring lines is formed in a region with twice to ten times the scoring line width, and
- wherein the scoring lines are from both sides so deep that they cover the thickness of the paper and/or other fiber-based web material in total.
2 more elements
Dependencies are inferred from the claim text.