Dissolved air de-bonding of a tissue sheet
US-2020080265-A1 · Mar 12, 2020 · US
Dissolved air de-bonding of a tissue sheet
US11248346B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11248346-B2 |
| Application number | US-202017025028-A |
| Country | US |
| Kind code | B2 |
| Filing date | Sep 18, 2020 |
| Priority date | May 23, 2016 |
| Publication date | Feb 15, 2022 |
| Grant date | Feb 15, 2022 |
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- Title
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Abstract
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Tissue papers and methods of making are disclosed herein. In one aspect, a tissue paper is substantially free of a chemical debonder and has a geometric mean tensile (GMT) in a range between about 500 and about 5,000 g/3 inches (g/3 in.) and a caliper in a range between about 50 and about 350 mils/8 sheets.
First claim
Opening claim text (preview).
What is claimed is: 1. A gas-impregnated tissue paper substantially free of a chemical debonder and having a percent increase in slope of velocity/pressure ((feet 3 /min/feet 2 )/inches water column) as a function of 1/P 0.5 of at least 15% compared to a like non-gas-impregnated tissue paper; wherein P is pressure from about 8 inches water column to about 20 inches water column. 2. The gas-impregnated tissue paper of claim 1 , wherein the increase in slope of velocity/pressure is at least 20% compared to a like non-gas-impregnated tissue paper. 3. The gas-impregnated tissue paper of claim 1 , wherein the increase in slope of velocity/pressure is at least 22% compared to a like non-gas-impregnated tissue paper.
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Inventors
Classifications
- D21H27/005Primary
relating to physical or mechanical properties, e.g. tensile strength, stretch, softness · CPC title
Tissue paper; Absorbent paper (D21H21/22, D21H27/02, D21H27/20 take precedence; toilet paper A47K10/00; absorbent pads for physiological fluids A61L15/16; making on paper-making machines D21F11/00) · CPC title
Physical treatment, e.g. heating, irradiating (D21H25/18 takes precedence; dryer section of machines for making continuous webs of paper D21F5/00) · CPC title
Foam · CPC title
Secondary fibres (working-up waste paper D21C5/02) · CPC title
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- What does patent US11248346B2 cover?
- Tissue papers and methods of making are disclosed herein. In one aspect, a tissue paper is substantially free of a chemical debonder and has a geometric mean tensile (GMT) in a range between about 500 and about 5,000 g/3 inches (g/3 in.) and a caliper in a range between about 50 and about 350 mils/8 sheets.
- Who is the assignee on this patent?
- Gpcp Ip Holdings Llc
- What technology area does this patent fall under?
- Primary CPC classification D21H27/005. Mapped technology areas include Textiles & Paper.
- When was this patent published?
- Publication date Tue Feb 15 2022 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 12 related publications on this page (citations in our corpus or others sharing the same primary CPC).