US2023037335A1PendingUtilityA1

Hygienic paper

Assignee: KAUFMANN WERNERPriority: Jan 14, 2020Filed: Jan 12, 2021Published: Feb 9, 2023
Est. expiryJan 14, 2040(~13.5 yrs left)· nominal 20-yr term from priority
Inventors:Werner Kaufmann
A47K 10/16D21H 21/16D21H 27/002
47
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Claims

Abstract

The invention relates to hygienic paper in web form for moist applications that preferably consists of mutually contiguous sheets that are connected to one another via a tear-off perforation, wherein the hygienic paper consists of a cellulose mass with embedded reinforcement fibers and the reinforcement fibers have an increased tear strength on an initial moistening and at least partly lose their tear strength after an extended moistening, whereby the sheets disintegrate into smaller pieces over the course of the time after the moistening, at the latest in the sewer system.The invention further relates to hygienic paper comprising individual sheets, wherein the sheets are each provided with at least one disintegration perforation that provides a disintegration of the sheets into smaller pieces over the course of the time after a moistening, at the latest in a sewer system.

Claims

exact text as granted — not AI-modified
1 .- 19 . (canceled) 
     
     
         20 . Hygienic paper for moist applications that comprises contiguous sheets that are connected to one another via a tear-off perforation, wherein the hygienic paper consists of a cellulose mass with embedded reinforcement fibers and the reinforcement fibers have an increased tear strength on an initial moistening and at least partly lose their tear strength after an extended moistening, whereby the sheets disintegrate into smaller pieces over the course of the time after the moistening, at the latest in the sewer system. 
     
     
         21 . Hygienic paper in web form for moist applications that comprises contiguous sheets that are connected to one another via a tear-off perforation, wherein the hygienic paper consists of a cellulose mass,
 wherein the hygienic paper is present in at least two layers, and wherein the lignin portion in one of the layers is higher than the lignin portion in the further layer or in the further layers from which the lignin portion is removed.   
     
     
         22 . Hygienic paper in web form for moist applications that comprises contiguous sheets that are connected to one another via a tear-off perforation, wherein the hygienic paper consists of a cellulose mass,
 wherein the hygienic paper is manufactured from a paper towel material.   
     
     
         23 . Hygienic paper that comprises contiguous sheets that are connected to one another via a tear-off perforation, in accordance with  claim 20 ,
 wherein the sheets are each provided with at least one disintegration perforation that provides a disintegration of the sheets into smaller pieces over the course of the time after a moistening, at the latest in a sewer system.   
     
     
         24 . Hygienic paper in accordance with  claim 20 ,
 wherein the reinforcement fibers can be dissolved in wastewater.   
     
     
         25 . Hygienic paper in accordance with  claim 20 ,
 wherein the reinforcement fibers are provided with a hydrophobic coating that loses its effect in wastewater.   
     
     
         26 . Hygienic paper in accordance with  claim 22 ,
 wherein the tear-off perforation and the disintegration perforation are slit perforations and/or hole perforations.   
     
     
         27 . Hygienic paper in accordance with  claim 20 ,
 wherein the tear-off perforation extends in a straight line along the total width of the hygienic paper.   
     
     
         28 . Hygienic paper in accordance with  claim 20 ,
 wherein the tear-off perforations each extend in parallel with one another.   
     
     
         29 . Hygienic paper in accordance with  claim 20 ,
 wherein the disintegration perforation extends in wave shape along the total length and/or along the width of the hygienic paper.   
     
     
         30 . Hygienic paper in accordance with  claim 20 ,
 wherein the disintegration perforation extends in zigzag shape along the total length and/or along the width of the hygienic paper.   
     
     
         31 . Hygienic paper in accordance with  claim 20 ,
 wherein a plurality of disintegration perforations, possibly different disintegration perforations, are provided.   
     
     
         32 . Hygienic paper in accordance with  claim 31 ,
 wherein the disintegration perforations extend over the hygienic paper such that at least some disintegration perforations intersect at least once.   
     
     
         33 . Hygienic paper in accordance with  claim 20 ,
 wherein the spacings between the individual perforations of the tear-off perforation are smaller than the spacings between individual perforations of the disintegration perforation.   
     
     
         34 . Hygienic paper in accordance with  claim 20 ,
 wherein the hygienic paper consists of a plurality of layers.   
     
     
         35 . Hygienic paper in accordance with  claim 20 ,
 wherein the hygienic paper has a width between 7 and 14 cm.   
     
     
         36 . Hygienic paper in accordance with  claim 20 ,
 wherein the hygienic paper is wound onto tubes.   
     
     
         37 . Hygienic paper in accordance with  claim 20 ,
 wherein the hygienic paper is produced as tissue paper.   
     
     
         38 . Hygienic paper in accordance with  claim 20 ,
 wherein the individual sheets have a length between 10 and 18 cm.   
     
     
         39 . Hygienic paper that comprises contiguous sheets that are connected to one another via a tear-off perforation, wherein the sheets are each provided with at least one disintegration perforation that provides a disintegration of the sheets into smaller pieces over the course of the time after a moistening, at the latest in a sewer system.

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