Nested rolled paper product
AssigneeKimberly-Clark Worldwide, Inc.
InventorsRichard Wolkowicz, Mark Burazin
Life of this patent
Estimating the term…
Abstract
A nested rolled paper product is shown in which raised and depressed areas are formed in a sheet. The depressed areas may comprise square shapes, rounded shapes or other geometric shapes that are capable of aligning or nesting in registration when the sheet is rolled to form a reduced diameter rolled product. A high loft through air drying fabric is employed to imprint a high caliper pattern into the sheet in such a way as to nest raised portions, resulting in a more compact product having a minimized roll diameter. Grooves or channels in the sheet are capable of aligning as the sheet is rolled. The resulting rolled product may be toilet tissue, paper towels, or other similar paper products. The final rolled product achieves a minimum roll diameter for a fixed roll length.
Claims23
A nested rolled paper product, comprising:
- (a) an elongated sheet of rolled fibrous material, the sheet having a machine direction that is elongated and a cross direction perpendicular to the machine direction;
- and
- (b) raised and depressed areas in the sheet of fibrous material, the depressed areas being formed by drying the paper product on a throughdrying fabric having a pattern of raised and depressed portions;
- the depressed areas of the elongated sheet being adapted to form channels in the sheet,
- (c) wherein the channels align in registration when the elongated sheet is in the rolled condition, thereby forming a nested rolled paper product having a compact exterior rolled dimension, wherein the nesting factor is greater than 2.
A nested rolled paper product, comprising:
- an elongated sheet of rolled fibrous material, the sheet having a machine direction that is elongated and a cross direction perpendicular to the machine direction;
- raised and depressed areas in the sheet of fibrous material, the depressed areas being formed by drying the paper product on a throughdrying fabric having a pattern of raised and depressed portions;
- the depressed areas of the elongated sheet being adapted to form channels in the sheet;
- and
- wherein the channels align in registration when the elongated sheet is in the rolled condition, thereby forming a nested rolled paper product having a compact exterior rolled dimension, wherein the nesting factor is greater than 2 and the caliper of the elongated sheet is greater than about 15 mils.
A nested rolled paper product, comprising:
- an elongated sheet of rolled fibrous material, the sheet having a machine direction that is elongated and a cross direction perpendicular to the machine direction;
- raised and depressed areas in the sheet of fibrous material, the depressed areas being formed by drying the paper product on a throughdrying fabric having a pattern of raised and depressed portions;
- the depressed areas of the elongated sheet being adapted to form channels in the sheet;
- and
- wherein the channels align in registration when the elongated sheet is in the rolled condition, thereby forming a nested rolled paper product having a compact exterior rolled dimension, wherein the nesting factor is greater than 2.5 and the caliper of the elongated sheet is from about 15 mils to about 40 mils.
Dependencies are inferred from the claim text.