IP Library › Granted Patent US 7,449,085
Granted Patent B2
US 7,449,085 · App. 11/591,798 · Granted Nov 11, 2008

Paper sheet having high absorbent capacity and delayed wet-out

View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 7,449,085
App. No.
11/591,798
Granted
Nov 11, 2008
Kind
B2
Abstract

Absorbent paper products, such as paper towels, are disclosed which have a combination of high absorbent capacity and a moderate to low rate of absorbency for hand protection. These properties can be produced, for example, using a throughdried basesheet, such as an uncreped throughdried sheet, in which at least one surface of which has been printed with a patterned moisture barrier coating and creped. The presence of the moisture barrier coating on the surface retards the absorbent rate for that side of the sheet while allowing a significant amount of liquid to pass through to the center of the sheet.

Claims (11)

1. A low density paper product having one or more plies consisting essentially of hardwood kraft fibers, softwood kraft fibers or blends thereof and having a discontinuous moisture retardant coating on the surface thereof, said product having a Bulk of 10 cubic centimeters or greater per gram, a Vertical Absorbent Capacity from about 8.0 grams of water per gram of fiber to about 12 grams of water per gram of fiber, a Wet-Out Time from about 4.5 seconds to about 7 seconds and a cross-machine direction wet tensile strength of from about 700 to about 970 grams per 3 inches of sample width.

2. The product of claim 1 wherein the number of plies is one.

3. The product of claim 1 wherein the number of plies is two.

4. The product of claim 1 having an Anisotropy Factor of about 1.05 or greater.

5. The product of claim 1 having an Anisotropy Factor of about 1.1 or greater.

6. The product of claim 1 having an Anisotropy Factor of about 1.2 or greater.

7. The product of claim 1 having an Anisotropy Factor of about 1.5 or greater.

8. The product of claim 1 having an Anisotropy Factor of about 1.05 or greater.

9. The product of claim 1 having an Anisotropy Factor of from about 1.05 to about 2.5.

10. The product of claim 1 having an Anisotropy Factor of from about 1.1 to about 2.

11. The product of claim 1 wherein one or more of the plies is an uncreped throughdried ply.

Assignments (1)
NAME CHANGE Recorded Feb 3, 2015
From: KIMBERLY-CLARK WORLDWIDE, INC.
To: KIMBERLY-CLARK WORLDWIDE, INC.
Reel/Frame 034880/0704 →