Partitionable paper towel

Patent metadata

Field	Value
Publication number	US-2016345786-A1
Application number	US-201615162053-A
Country	US
Kind code	A1
Filing date	May 23, 2016
Priority date	May 26, 2015
Publication date	Dec 1, 2016
Grant date	—

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 perforation line in the CD direction wherein the perforation strength is between about 450 grams/3 inches and about 950 grams/3 inches; at least one perforation line in the MD direction wherein the perpendicular perforation strength is between about 770 grams/3 inches and about 1700 grams/3 inches; and wherein the perforation strength in the CD direction is greater than the perforation strength in the MD direction.

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 paper towel product has a perforation tensile ratio of at least about 32%.

5 . The paper towel product of claim 1 , wherein the paper towel product has a perpendicular perforation tensile ratio of at least about 32%.

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

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

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.

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

12 . A partitionable rolled paper towel product comprising:
a continuous roll of at least one paper web having a basis weight of at least 30 g/sq. meter, wherein the continuous roll of at least one paper web has a series of repeating perforations, wherein the series of perforations includes a full sheet perforation and a half sheet perforation, both in the cross machine direction, and a quarter sheet perforation in the machine direction, and wherein the full sheet perforation and the half sheet perforation have substantially the same perforation strength and the quarter sheet perforation has a perforation strength greater than the perforation strength of the full and half sheet perforations.

13 . The rolled paper product of claim 12 , wherein the ratio of the perforation tensile of the quarter sheet perforation to the half sheet perforation tensile is at least about 1.15.

14 . The rolled towel product of claim 12 , wherein the perforation strength of the full and half sheets is between about 450 grams/3 inches and about 950 grams/3 inches.

15 . The rolled towel product of claim 12 , wherein the rolled paper towel is a two-ply product.

16 . The rolled towel product of claim 12 , wherein the rolled paper towel is a three-ply product.

17 . The rolled towel product of claim 12 , wherein the product is embossed.

18 . A rolled paper product comprising:
a series of sheets of a single-use absorbent paper, wherein the first sheet is defined by a first set of perforations that extend in the CD direction and a second set of perforations that extend in the CD direction; and wherein the first sheet includes at least one set of perpendicular perforations in the MD direction allowing the first sheet to be partitioned into smaller sheets; wherein the perforation bond length of the at least on set of perpendicular perforations in the MD direction is longer than the bond length of the first and second sets of perforations that extend in the CD direction; and wherein the perforation strength of the MD perforations is at least about 770 grams/3 inches.

19 . The rolled paper product of claim 18 , wherein the ratio of the perpendicular perforation tensile strength/perforation tensile strength is at least about 1.15.

20 . The rolled paper product of claim 18 , wherein the bond area of the perforations in the CD direction are at least about 15%.

21 . The rolled paper product of claim 20 , wherein the bond area of the perpendicular perforations in the MD direction are at least about 16%.

22 . The rolled paper product of claim 18 , wherein the bond length of the perforations extending in the MD direction are at least 1.2 times the length of the bonds of either the first or second set of perforations in the CD direction.

23 . The rolled paper product of claim 18 , wherein the smaller sheets are at least about 5 inches long in the CD direction.

24 . A rolled paper towel product comprising:
at least one perforation line in the CD direction; at least one perforation line in the MD direction; and wherein the ratio of the perpendicular perforation tensile strength to the perforation tensile strength is at least about 1.15.

25 . The rolled paper product of claim 24 , wherein the ratio of the perpendicular perforation tensile strength to the perforation tensile strength is at least about 1.5.

26 . The rolled paper product of claim 24 , wherein the perforation line in CD direction has a perforation tensile of between about 450 g/3 inches and about 950 g/3 inches.

27 . The rolled paper product of claim 24 , wherein the perpendicular perforation lines in the machine direction have a perforation tensile of between about 770 g/3 inches and 1700 g/3 inches.

28 . A rolled paper towel product of at least one paper web produced by through drying, the rolled towel product comprising:
a basis weight of at least about 35 g/sq. meter; at least one perforation line in the CD direction: at least one perpendicular perforation line in the MD direction; wherein the ratio of the perpendicular perforation tensile to the CD perforation tensile strength is at least 1.0 or higher; and wherein the bond length in the perpendicular perforation line is longer than the bond length in the CD perforation line.

29 . The paper product of claim 28 , wherein the perforation line in the CD direction comprises a series of uniform perforations.

30 . The paper product of claim 28 , wherein the perpendicular perforation line comprises a series of uniform perforation.

31 . The paper product of claim 28 , wherein the perpendicular perforation line comprises non-uniform bond lengths.

32 . The paper product of claim 28 , wherein the bond lengths of the perpendicular perforation located proximate the perforation line in the CD direction are longer than the bond lengths in the CD perforation line.

33 . A rolled paper towel product of at least one paper web produced by through drying, the rolled towel product comprising:
a basis weight of at least about 40 g/sq. meter; at least one perforation line in the CD direction: at least one perpendicular perforation line in the MD direction; wherein the ratio of the percent bond area in the perpendicular perforation to the % bond area in the CD perforation is greater than about 1.0; and wherein the bond length in the

Assignees

• Georgia Pacific Consumer Products Lp

Inventors

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

Classifications

• B31F2201/0797

  Perforating · CPC title

• B32B29/002

  as the main or only constituent of a layer, which is next to another layer of the same or of a different material (next to a layer of a particular substance B32B9/06; next to a bituminous or tarry layer B32B11/06; next to a water-setting substance layer B32B13/08; next to a metal layer B32B15/12; next to a glass layer B32B17/065; next to a layer formed of natural mineral fibres or particles B32B19/046; next to a wood layer B32B21/06; next to a cellulosic plastic layer B32B23/06; next to a natural or synthetic rubber layer B32B25/06; next to a synthetic resin layer B32B27/10) · CPC title

• B31F1/07 Primary

  Embossing {, i.e. producing impressions formed by locally deep-drawing, e.g. using rolls provided with complementary profiles}({B31F1/128 takes precedence;} corrugating B31F1/20; embossing in combination with printing B41F19/02, B41M1/24; typewriters for embossing B41J3/38; stamping in combination with deforming B41K3/36) · CPC title

• B32B2432/00

  Cleaning articles, e.g. mops or wipes · CPC title

• A47K10/16 Primary

  Paper towels; Toilet paper; Holders therefor · CPC title