Soft, absorbent sheets having high absorbency and high caliper, and methods of making soft, absorbent sheets

US9303363B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9303363-B2
Application numberUS-201414541316-A
CountryUS
Kind codeB2
Filing dateNov 14, 2014
Priority dateNov 14, 2013
Publication dateApr 5, 2016
Grant dateApr 5, 2016

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  1. Title

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  2. Abstract

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  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

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  6. CPC / IPC classifications

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  7. Citations and related patents

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Abstract

Official abstract text for this publication.

Paper products, such as hand towels, have high absorbency, high caliper, and good perceived softness. Two-ply products have a caliper of at least about 260 mils/8 sheets and an SAT capacity of at least about 650 g/m 2 . The paper products are made using a structuring fabric that has a high planar volumetric index, which indicates a relation between the contact area ratio of a papermaking web contacting surface of the structuring fabric and the volume of pockets of the fabric.

First claim

Opening claim text (preview).

We claim: 1. An absorbent cellulosic sheet comprising: a first ply providing a first surface of the sheet; and a second ply providing a second surface of the sheet, the second ply being directly attached to the first ply, wherein the sheet has a caliper of at least about 260 mils/8 sheets, and the sheet has a saturation (SAT) capacity of at least about 650 g/m 2 . 2. An absorbent sheet according to claim 1 , wherein the sheet has an SAT capacity of at least about 700 g/m 2 . 3. An absorbent sheet according to claim 2 , wherein the sheet has a caliper of at least about 260 mils/8 sheets. 4. An absorbent sheet according to claim 1 , wherein the sheet has a caliper of at least about 265 mils/8 sheets. 5. An absorbent sheet according to claim 1 , wherein the sheet has a dry machine direction/cross machine direction (MD/CD) tensile ratio of less than about 1.0. 6. An absorbent sheet according to claim 5 , wherein the sheet has a dry MD/CD tensile ratio of about 0.85 to about 1.0. 7. An absorbent sheet according to claim 1 , wherein the sheet has a dry machine direction/cross machine direction (MD/CD) stretch ratio of about 2.2. 8. An absorbent sheet according to claim 1 , wherein the sheet has a basis weight of less than about 32 lbs/ream. 9. An absorbent cellulosic sheet comprising: a first ply providing a first surface of the sheet; and a second ply providing a second surface of the sheet, wherein the sheet has a dry machine direction/cross machine direction (MD/CD) tensile ratio of less than about 1.0, and the sheet has a caliper of at least about 255 mils/8 sheets. 10. An absorbent sheet according to claim 9 , wherein the first ply is directly attached to the second ply. 11. An absorbent sheet according to claim 9 , wherein the sheet has a dry MD/CD tensile ratio of about 0.85 to about 1.0. 12. An absorbent sheet according to claim 9 , wherein the sheet has a dry machine direction/cross machine direction (MD/CD) stretch ratio of about 2.2. 13. An absorbent sheet according to claim 9 , wherein the sheet has a caliper of at least about 260 mils/8 sheets. 14. An absorbent sheet according to claim 9 , wherein the sheet has a caliper of at least about 265 mils/8 sheets. 15. An absorbent sheet according to claim 9 , wherein the sheet has a basis weight of less than about 32 lbs/ream. 16. An absorbent cellulosic sheet comprising: a first ply providing a first surface of the sheet; and a second ply providing a second surface of the sheet, wherein the sheet has a dry machine direction/cross machine direction (MD/CD) tensile ratio of less than about 1.0, and the sheet has a saturation (SAT) capacity of at least about 675 g/m 2 . 17. An absorbent sheet according to claim 16 , wherein the second ply is directly attached to the first ply.

Assignees

Inventors

Classifications

  • Drying · CPC title

  • Volume rendering · CPC title

  • Wire-cloths · CPC title

  • Making patterned paper · CPC title

  • D21H27/30Primary

    Multi-ply (for surface covering D21H27/18; making on paper-making machines D21F9/00, D21F11/00) · CPC title

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Frequently asked questions

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What does patent US9303363B2 cover?
Paper products, such as hand towels, have high absorbency, high caliper, and good perceived softness. Two-ply products have a caliper of at least about 260 mils/8 sheets and an SAT capacity of at least about 650 g/m 2 . The paper products are made using a structuring fabric that has a high planar volumetric index, which indicates a relation between the contact area ratio of a papermaking web co…
Who is the assignee on this patent?
Georgia Pacific Consumer Prod
What technology area does this patent fall under?
Primary CPC classification D21H27/30. Mapped technology areas include Textiles & Paper.
When was this patent published?
Publication date Tue Apr 05 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).