Soft through air dried tissue

US10570570B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-10570570-B2
Application numberUS-201816115723-A
CountryUS
Kind codeB2
Filing dateAug 29, 2018
Priority dateAug 3, 2012
Publication dateFeb 25, 2020
Grant dateFeb 25, 2020

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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.

A multi-layer through air dried tissue including a first exterior layer comprised substantially of hardwood fibers, an interior layer comprised substantially of softwood fibers, and a second exterior layer comprised substantially of hardwood fibers. The interior layer includes a first wet end additive comprising an ionic surfactant and a second wet end additive comprising a non-ionic surfactant.

First claim

Opening claim text (preview).

What is claimed is: 1. A multi-layer structured tissue comprising an outer surface having an Average Peak to Valley Waviness of 140 microns or less. 2. The multi-layer structured tissue of claim 1 , wherein the outer surface has a Waviness Uniformity of 27 microns or less. 3. The multi-layer structured tissue of claim 1 , wherein the outer surface has an Average Primary Amplitude of 50 microns or less. 4. The multi-layer structured tissue of claim 1 , wherein the outer surface has an Amplitude Uniformity of 8 microns or less.

Assignees

Inventors

Classifications

  • characterised by function or properties in or on the paper (D21H19/66, D21H27/02 take precedence) · CPC title

  • Kraft or sulfate pulp · 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

  • Reinforcing agents · CPC title

  • including a through-drying process · CPC title

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Frequently asked questions

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What does patent US10570570B2 cover?
A multi-layer through air dried tissue including a first exterior layer comprised substantially of hardwood fibers, an interior layer comprised substantially of softwood fibers, and a second exterior layer comprised substantially of hardwood fibers. The interior layer includes a first wet end additive comprising an ionic surfactant and a second wet end additive comprising a non-ionic surfactant.
Who is the assignee on this patent?
First Quality Tissue Llc
What technology area does this patent fall under?
Primary CPC classification D21H27/38. Mapped technology areas include Textiles & Paper.
When was this patent published?
Publication date Tue Feb 25 2020 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).