Low-moisture cloud-making cleaning article

• US 9,826,876 B2
• Filed: 09/30/2013
• Issued: 11/28/2017
• Est. Priority Date: 09/30/2013
• Status: Active Grant

• Current Assignee: Kimberly-Clark Worldwide Incorporated (Kimberly-Clark Corporation)
• Original Assignee: Kimberly-Clark Worldwide Incorporated (Kimberly-Clark Corporation)
• Inventors: Yang, Kaiyuan, Baker, Andrew T, Feldkamp, Joseph R, Koenig, David William, Lee, WanDuk, Rippl, Carl G, Engelbrecht, Kathleen C, Leong, Waihong, Soerens, Dave A, Bhatt, Divesh, Heo, Jin, Abraham, Jose Kollakompil
• Primary Examiner(s): VINEIS, FRANK J
• Application Number:
  US14/042,071
• Publication Number:
  US 20150089755A1
• Time in Patent Office: 1,520 Days
• Field of Search: 442123-125, 15208-233, 424 7012
• CPC Class Codes: A47L 13/17 containing cleaning agents A47L13/19 takes precedence ; chemical compositions C11D17/049
• CPC Class Codes: D04H 1/00 Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres

Abstract

A cleaning article includes a cleaning article sheet comprising a fabric substrate, wherein the fabric substrate includes pores therein, and wherein the fabric substrate has a background moisture percentage by weight, and liquid water disposed substantially and disconnectedly within the pores, wherein the liquid water is at moisture percentage by weight that is 5 to 150 percentage points higher than the background moisture percentage. The nonwoven substrate can include pores formed between and/or within the fibers and can have a background moisture percentage by weight. The substrate can include a treatment to increase the dielectric constant from the dielectric constant of the substrate without the treatment. The moisture of the article can be configured to exhibit a dielectric constant of at least 50% and up to 600% higher than the dielectric constant of the same article with only background moisture.

Claims

1. A hard surface cleaning article comprising:

a cleaning article sheet comprising a fabric substrate including fibers, wherein the fabric substrate includes pores therein, and wherein the substrate includes a zwitterion grafted to the fibers to increase the dielectric constant of the substrate from the dielectric constant of the substrate without the zwitterion; and

a liquid disposed substantially and disconnectedly within the pores, the liquid consisting of liquid water, wherein the liquid water is at a moisture percentage by weight of 5 to 100 percent, wherein the cleaning article is configured to transfer liquid water to a surface, wherein the majority of water transferred to the surface is transferred by condensation.

2. The cleaning article of claim 1, wherein the pores in the fabric substrate are formed between the fibers.

3. The cleaning article of claim 1, wherein the pores in the fabric substrate are formed within the fibers.

4. The cleaning article of claim 1, wherein the fabric substrate includes cellulosic material.

5. The cleaning article of claim 1, wherein the fabric substrate includes polysaccharide material.

6. The cleaning article of claim 1, wherein the article is configured to reabsorb a majority of the liquid water transferred to the surface.

7. The cleaning article of claim 1, wherein the moisture of the article is configured to exhibit a dielectric constant of at least 50% and up to 700% higher than the dielectric constant of the same article when dry.

8. The cleaning article of claim 1, wherein the moisture of the article is configured to exhibit a dielectric constant of at least 50% and up to 700% higher than the dielectric constant of the same article when dry, and wherein the article is configured to remove bacteria by establishing a dielectric gradient of ∈

1(wipe) >

∈

2(microbial debris) >

∈

3(surface) during wiping.

9. The cleaning article of claim 8, further comprising an alkoxysilane coupling agent.

10. The cleaning article of claim 1, wherein the zwitterion is serine.

11. A hard surface cleaning article comprising:

a cleaning article sheet comprising a nonwoven substrate having fibers, wherein the nonwoven substrate includes pores formed between and/or within the fibers, and wherein the substrate includes a zwitterion grafted to the fibers to increase the dielectric constant from the dielectric constant of the substrate without the treatment; and

a liquid disposed substantially and disconnectedly within the pores, the liquid consisting of liquid water, wherein the liquid water is at a moisture percentage by weight of 5 to 100 percent, wherein the cleaning article is configured to transfer liquid water to a surface, wherein the majority of water transferred to the surface is transferred by condensation, wherein the moisture of the article is configured to exhibit a dielectric constant of at least 50% and up to 600% higher than the dielectric constant of the same article when dry.

12. The cleaning article of claim 11, wherein the zwitterion is serine.

13. The cleaning article of claim 11, further comprising an alkoxysilane coupling agent.

14. A hard surface cleaning article comprising:

a cleaning article sheet comprising a nonwoven substrate having fibers, wherein the nonwoven substrate includes pores formed between and/or within the fibers;

a treatment on the substrate to increase the dielectric constant from the dielectric constant of the substrate without the treatment, wherein the treatment includes a zwitterion grafted to the fibers; and

liquid water disposed substantially and disconnectedly within the pores, wherein the liquid water is at a moisture percentage by weight of 5 to 100 percent, wherein the cleaning article is configured to transfer liquid water to a surface, wherein the majority of water transferred to the surface is transferred by condensation, wherein the moisture of the article is configured to exhibit a dielectric constant of at least 50% and up to 600% higher than the dielectric constant of the same article when dry, wherein the article is configured to remove bacteria by establishing a dielectric gradient of ∈

1(wipe) >

∈

2(microbial debris) >

∈

3(surface) during wiping.

15. The cleaning article of claim 14, wherein the zwitterion is serine.