Expanded slit sheet cushioning products with novel reduced dimension slit patterns
AssigneeHexcelPack, LLC
InventorDavid Paul Goodrich
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Abstract
In the preferred embodiments, the present invention provides substantially improved slit sheet cushioning products by advantageously combining novel paper properties with novel slit patterns for improved features and characteristics. In some illustrative and non-limiting example embodiments, cushioning products of the present invention can include, e.g., a novel slit sheet material in combination with extensible paper employed as, e.g., a cushioning pad or as cushioning within an envelope product, wherein the cushioning product can be substantially more resilient, but, yet, e.g., thinner for better utilization of space.
Claims81
A slit sheet paper cushioning product, comprising:
- a slit sheet paper having a slit pattern including a plurality of slits extending in a cross direction that forms a plurality of open cells upon expansion in a machine direction,
- wherein the slit width is from 0.15 inches to 0.45 inches.
A slit sheet paper cushioning product, comprising:
- a sheet paper having a slit pattern including a plurality of slits extending in a cross direction that forms a plurality of open cells upon expansion in a machine direction,
- wherein the slit width is between about 0.15 and 0.35 inches, and said slit sheet paper is formed from i) an extensible paper made to be extensible in the machine direction and the cross direction without said slit pattern, said extensible paper having an extensibility within a range of 3 to 20% in the machine direction or from ii) a non-extensible paper.
A slit sheet paper cushioning product, comprising:
- at least one slit sheet paper having a slit pattern including a plurality of slits extending in a cross direction that forms a plurality of open cells upon expansion in a machine direction,
- wherein the slit width is less than 0.40 inches, and said slit sheet paper being formed from an expandable paper that expands into an alternating row expansion pattern that includes alternating rows with bottom-side cell openings in bottom-side rows situated on a bottom side of the expanded slit sheet paper and with top-side cell openings in top-side rows situated on a top side of the expanded slit sheet paper.
Dependencies are inferred from the claim text.