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Absorbent sheet having cellulose fibers on upper side and lower side

A cellulose fiber, absorbent technology for multi-layer belt applications that solves problems such as lost productivity, reduced caliper, and expensive paper machine downtime

Active Publication Date: 2020-04-07
GPCP IP HLDG LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, the caliper of the paper product will be significantly reduced due to air leakage from the seal between the vacuum box and the creping structure
Also, accumulated fibers that cause undesired changes in paper product properties will also have to be removed from the outer edges of the vacuum box
Purging operations lead to costly downtime of the paper machine and lost productivity

Method used

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  • Absorbent sheet having cellulose fibers on upper side and lower side
  • Absorbent sheet having cellulose fibers on upper side and lower side
  • Absorbent sheet having cellulose fibers on upper side and lower side

Examples

Experimental program
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Embodiment Construction

[0036] In one aspect, the invention relates to a papermaking process using a belt having a multilayer structure that can be used to crepe a paper web (as part of the papermaking process). The present invention also relates to a paper product having superior properties, wherein the paper product can be formed using a multilayer creping belt.

[0037] The term "paper product" as used herein encompasses any product that synthesizes papermaking fibers with cellulose as the main component. This would include, for example, products marketed as paper towels, toilet paper, facial tissue, etc. Papermaking fibers include virgin or recycled (regenerated) cellulose fibers or fiber mixtures comprising cellulose fibers. Wood fibers include, for example, those obtained from deciduous and coniferous trees, including softwood fibers (eg, northern and southern softwood kraft fibers) and hardwood fibers (eg, eucalyptus, maple, birch, poplar, etc.). Examples of fibers suitable for use in making...

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PUM

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Abstract

The present application relates to an absorbent sheet having cellulosic fibers on the upper side and the lower side, the absorbent sheet includes: a plurality of hollow dome regions protruding from anupper side of the absorbent sheet, wherein each hollow dome region is shaped such that a distance from at least one first point on an edge of the hollow dome region to a second point on an edge in anopposite side of the hollow dome region is at least 0.5 mm; and a connection region forming a network interconnecting the hollow dome regions of the absorbent sheet, in which a thickness of a singlelayer of the absorbent sheet is at least 140 mils / 8 sheets.

Description

[0001] This application is titled "Method for Manufacturing Paper Products Using Multilayer Creping Belts and Paper Products Manufacturing Using Multilayer Creping Belts", the international filing date is September 25, 2015, and the international application number is PCT / US2015 / 052390 , The divisional application of the invention patent application with the national application number 201580051598.X. [0002] Cross References to Related Applications [0003] This application is based on US Provisional Patent Application No. 62 / 055261 filed September 25, 2014, the entire contents of which are incorporated herein by reference. technical field [0004] The present invention relates to a multilayer belt which can be used to crepe cellulosic paper webs in the papermaking process. The invention also relates to a method of making a paper product using a multilayer belt for creping in a papermaking process. The present invention also relates to paper products having superior proper...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B31F1/12
CPCD21F11/006D21H27/002D21H27/005D21H11/04D21H27/007D21H27/40
Inventor 施晓明周洪量樊晓林
Owner GPCP IP HLDG LLC