Systems and methods for application of surface chemistry to bath tissue, facial tissue, and paper towel

Patent metadata

Field	Value
Publication number	US-12180656-B2
Application number	US-202117484065-A
Country	US
Kind code	B2
Filing date	Sep 24, 2021
Priority date	Sep 24, 2020
Publication date	Dec 31, 2024
Grant date	Dec 31, 2024

Abstract

A method of producing wet laid disposable bath tissue, facial tissue, and paper towel with enhanced properties through application of surface additives using a piezoelectrical apparatus or application device.

First claim

We claim:

1. A method of applying chemistries to a paper product comprising:
forming a paper web on a papermaking machine; and
applying a chemistry in a pattern directly to the paper web while the paper web is moving through a paper converting line with a piezoelectric device during a process for converting the paper web into a roll good,
wherein the chemistry has a viscosity of 20 centipoise (cps) to 1,000 cps as measured by a Brookfield viscometer, and
wherein the paper product is a wet laid disposable bath tissue, facial tissue or paper towel.

2. The method of claim 1 , wherein the chemistry comprises a solution, an emulsion, an ointment, a lotion or combinations thereof.

3. The method of claim 1 , wherein the chemistry has a viscosity of 40 centipoise (cps) to 200 centipoise (cps) as measured by a Brookfield viscometer.

4. The method of claim 1 , wherein the step of applying a chemistry comprises controlling droplet size of the chemistry to 0.5 microns to 20 microns in diameter.

5. The method of claim 1 , wherein the step of applying a chemistry comprises controlling a speed of formation of a droplet of the chemistry to a maximum of 165,000 droplets per second.

6. The method of claim 1 , wherein the step of applying a chemistry comprises controlling angle of deflection of droplets of the chemistry.

7. The method of claim 1 , wherein the step of controlling angle of deflection comprises applying an electrostatic field to the droplets of chemistry and passing the droplets through electrostatic deflection plates.

8. The method of claim 1 , wherein the step of applying a chemistry comprises applying the chemistry by an amount of 0.1 kg/ton to 10 kg/ton to the paper web.

9. The method of claim 1 , wherein the step of applying a chemistry comprises applying the chemistry by an amount of 0.1 kg/ton to about 5 kg/ton to the paper web.

10. The method of claim 1 , wherein the step of applying a chemistry comprises applying the chemistry by an amount of 0.1 kg/ton to about 2.5 kg/ton to the paper web.

11. The method of claim 1 , further comprising the step of changing a temperature of the chemistry before the step of applying.

12. The method of claim 1 , wherein the step of changing a temperature of the chemistry comprises cooling the chemistry.

13. The method of claim 1 , wherein the step of changing a temperature of the chemistry comprises heating the chemistry.

Assignees

• First Quality Tissue Llc

Inventors

• Sealey Ii James E
• Brennan Kevin
• Pence Justin S
• Miller Iv Byrd Tyler
• Walkiewicz Matthew John

Classifications

• B05D3/14

  by electrical means · CPC title

• D21H17/06

  Alcohols; Phenols; Ethers; Aldehydes; Ketones; Acetals; Ketals · CPC title

• D21H21/24

  Surfactants · CPC title

• D21H27/02

  Patterned paper (patterned coatings D21H19/66; embossing B31F1/07; prepared on the paper-making machines D21F11/00) · CPC title

• D21H27/007 Primary

  relating to absorbency, e.g. amount or rate of water absorption, optionally in combination with other parameters relating to physical or mechanical properties · CPC title