Partitionable paper towel

Patent metadata

Field	Value
Publication number	US-9918595-B2
Application number	US-201615162053-A
Country	US
Kind code	B2
Filing date	May 23, 2016
Priority date	May 26, 2015
Publication date	Mar 20, 2018
Grant date	Mar 20, 2018

Abstract

The present disclosure is directed to a paper towel product that will capably separate from the paper towel roll as a full sheet, a half sheet or a quarter sheet. A method of making a paper towel with machine direction perforations is also disclosed.

First claim

What is claimed is:

1. A rolled paper towel product of at least one paper web, the rolled towel product comprising:
a basis weight of at least about 35 g/sq. meter;
a SAT absorbent capacity of at least about 300 grams/sq. meter;
at least one mechanical perforation line in the CD direction having a perforation strength and wherein the perforation strength is between about 450 grams/3 inches and about 950 grams/3 inches;
at least one mechanical perpendicular perforation line in the MD direction having a perforation strength and wherein the perforation strength of the perpendicular perforation line is between about 770 grams/3 inches and about 1700 grams/3 inches;
wherein the perforation strength in the MD direction is greater than the perforation strength in the CD direction; and
wherein the ratio between the perforation tensile strength of the mechanical perpendicular perforation line and the CD tensile strength of the paper web is at least about 32%.

2. The paper towel product of claim 1 , wherein the paper towel product has a basis weight of at least about 50 g/sq. meter.

3. The paper towel product of claim 1 , wherein the paper towel product has a ratio of perpendicular perf tensile/perf tensile of at least about 1.15.

4. The paper towel product of claim 1 , wherein the ratio between the perforation tensile strength of the mechanical perpendicular perforation line and the CD tensile strength of the paper web is at least about 32%.

5. The paper towel product of claim 1 , wherein the product comprises at least two paper webs produced by through drying.

6. The paper towel product of claim 1 , wherein the SAT absorbent capacity is at least bout 550 grams/sq. meter.

7. The paper towel product of claim 6 , wherein the MD perforation line and the CD perforation line intersect to form 2 squares.

8. The paper towel product of claim 1 , wherein the MD perforation line comprises perforations having an aspect ratio of less than 3.

9. The paper towel product of claim 1 , wherein the MD perforation line bisects the paper towel into two approximately equal pieces.

10. The paper towel product of claim 1 , wherein the product is embossed.

Assignees

• Gpcp Ip Holdings Llc

Inventors

• Olson Steven R
• Hoadley David A
• Daul Thomas J

Classifications

• B31F2201/0797

  Perforating · CPC title

• B65H18/28

  Wound package of webs · CPC title

• B32B29/00

  Layered products comprising {a layer of} paper or cardboard · CPC title

• B32B29/06

  specially treated, e.g. surfaced, parchmentised · CPC title

• D21H27/002 Primary

  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