US2016295859A1PendingUtilityA1

Disposable antimicrobial wipes and methods of making

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Assignee: ECOLAB USA INCPriority: Apr 9, 2015Filed: Apr 9, 2015Published: Oct 13, 2016
Est. expiryApr 9, 2035(~8.7 yrs left)· nominal 20-yr term from priority
Inventors:Wendy ChanSherri L. Tischler
A01N 33/12A61K 2800/33A61Q 17/005A01N 25/10A01N 25/34A61K 8/365A61K 8/416A61K 8/0208A61K 8/36D04H 1/4258A01N 37/02A47L 13/17
53
PatentIndex Score
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References
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Claims

Abstract

An antimicrobial wipe is provided including a textile comprised of natural fibers untreated with a chemical bonding agent, the textile is treated with an antimicrobial composition, the antimicrobial composition comprising a quaternary ammonium compound and an organic acid, wherein the antimicrobial composition is surfactant free, emollient free, and polymeric free. A method of preparing such wipes is also provided.

Claims

exact text as granted — not AI-modified
1 . An antimicrobial wipe, comprising:
 a textile consisting of lyocell fibers not treated with a chemical binding agent,   an antimicrobial composition applied to the textile, the antimicrobial composition comprising a quaternary ammonium compound and from about 0.05 to about 0.4 wt. % of an organic acid,   wherein the antimicrobial composition is free of surfactants other than quaternary ammonium compounds, emollient free, and polymeric free.   
     
     
         2 . The wipe of  claim 1  wherein the textile is comprised of a woven or nonwoven web. 
     
     
         3 - 4 . (canceled) 
     
     
         5 . The wipe of  claim 1  wherein the organic acid is comprised of citric acid, maleic acid, tartaric acid, salicylic acid, glycolic acid, adipic acid, glutaric acid, gluconic acid, succinic acid, benzoic acid, lactic acid, acetic acid, malic acid, or combinations thereof. 
     
     
         6 . The wipe of  claim 1  wherein the organic acid has a pKa from 2 to 7. 
     
     
         7 . The wipe of  claim 1  wherein the organic acid has a pKa of 2 to 6. 
     
     
         8 . The antimicrobial wipe of  claim 1  wherein the antimicrobial composition comprises about 0.05 wt. % to about 0.4 wt. % quaternary ammonium. 
     
     
         9 . The antimicrobial wipe of  claim 1  wherein greater than 40% of the quaternary ammonium is expressed after squeezing the wipe for about 5 to about 20 seconds. 
     
     
         10 . The antimicrobial wipe of  claim 1  wherein greater than 50% of the quaternary ammonium is expressed after squeezing the wipe for about 5 to about 20 seconds. 
     
     
         11 . The antimicrobial wipe of  claim 1  wherein the quaternary ammonium is comprised of octyl decyl dimethyl ammonium chloride, dioctyl dimethyl ammonium chloride, didecyl dimethyl ammonium chloride, dimethyl ethyl benzyl ammonium chloride, didecyl dimethyl ammonium carbonate, didecyl dimethyl ammonium bicarbonate, benzethonium chloride, and combinations thereof. 
     
     
         12 . The antimicrobial wipe of  claim 1  wherein the wipe is disposable and biodegradable. 
     
     
         13 . The antimicrobial wipe of  claim 1  wherein the antimicrobial composition further comprises dye, fragrance, alcohol or any combination thereof. 
     
     
         14 . The composition of  claim 11  wherein the organic acid and quaternary ammonium are added simultaneously. 
     
     
         15 . The composition of  claim 14  wherein the organic acid and quaternary ammonium are added consecutively. 
     
     
         16 . (canceled) 
     
     
         17 . A method of preparing an antimicrobial wipe, comprising:
 applying organic acid and quaternary ammonium to a natural fiber textile.   
     
     
         18 . The method of  claim 17  wherein the organic acid and quaternary ammonium are added simultaneously. 
     
     
         19 . The method of  claim 17  wherein the organic acid and quaternary ammonium are added consecutively. 
     
     
         20 . The method of  claim 17  wherein the wipe is disposable. 
     
     
         21 . The method of  claim 16  wherein the organic acid is comprised of citric acid, maleic acid, tartaric acid, salicylic acid, glycolic acid, adipic acid, glutaric acid, gluconic acid, succinic acid, benzoic acid, lactic acid, acetic acid, malic acid, or combinations thereof. 
     
     
         22 . The method of  claim 17  wherein the organic acid has a pKa from 2 to 7. 
     
     
         23 . The method of  claim 17  wherein the organic acid has a pKa of 2 to 6. 
     
     
         24 . The method of  claim 17  wherein greater than 40% of the quaternary ammonium is expressed after squeezing the wipe for 5-20 seconds. 
     
     
         25 . The method of  claim 17  wherein greater than 50% of the quaternary ammonium is expressed after squeezing the wipe for 5-20 seconds. 
     
     
         26 . The method of  claim 17  wherein the quaternary ammonium is comprised of octyl decyl dimethyl ammonium chloride, dioctyl dimethyl ammonium chloride, didecyl dimethyl ammonium chloride, dimethyl ethyl benzyl ammonium chloride, didecyl dimethyl ammonium carbonate, didecyl dimethyl ammonium bicarbonate, benzethonium chloride, and combinations thereof. 
     
     
         27 . The method of  claim 17  wherein surfactant, dye, fragrance, alcohol or any combination thereof is added to the textile. 
     
     
         28 . A pretreated wipe consisting of a textile wipe and a composition applied to the textile wipe, wherein the textile wipe consists of lyocell, and wherein the composition comprises a quaternary ammonium compound and a pretreatment chemistry consisting of organic acid and water. 
     
     
         29 . (canceled) 
     
     
         30 . The wipe of  claim 28  wherein the composition further comprises dye. 
     
     
         31 . The wipe of  claim 28  wherein the composition further comprises fragrance. 
     
     
         32 . The wipe of  claim 28  wherein the composition further comprises alcohol. 
     
     
         33 . The wipe of  claim 28  wherein the composition further comprises any combination of dye, fragrance, and alcohol. 
     
     
         34 . The wipe of  claim 28  wherein the textile is disposable. 
     
     
         35 . The wipe of  claim 28  wherein the textile consists of a woven or nonwoven web. 
     
     
         36 . (canceled) 
     
     
         37 . The wipe of  claim 28  wherein the organic acid is chosen from the group of citric acid, maleic acid, tartaric acid, salicylic acid, glycolic acid, adipic acid, glutaric acid, gluconic acid, succinic acid, benzoic acid, lactic acid, acetic acid, malic acid, or combinations thereof. 
     
     
         38 . The wipe of  claim 28  wherein the organic acid has a pKa from 2 to 7. 
     
     
         39 . The wipe of  claim 28  wherein the organic acid has a pKa of 3 to 6. 
     
     
         40 . The antimicrobial wipe of  claim 28  wherein the composition comprises about 0.05 wt. % to about 0.4 wt. % quaternary ammonium and about 0.05 wt. % to about 0.4 wt. % organic acid. 
     
     
         41 . The antimicrobial wipe of  claim 28  wherein the wipe is constructed to express greater than 40% of the quaternary ammonium when squeezed for about 2 to about 30 seconds. 
     
     
         42 . The antimicrobial wipe of  claim 28  wherein the wipe is constructed to express greater than 70% of the quaternary ammonium when squeezed for about 5 to about 20 seconds. 
     
     
         43 . The antimicrobial wipe of  claim 28  wherein the quaternary ammonium compound is selected from the group consisting of octyl decyl dimethyl ammonium chloride, dioctyl dimethyl ammonium chloride, didecyl dimethyl ammonium chloride, dimethyl ethyl benzyl ammonium chloride, didecyl dimethyl ammonium carbonate, didecyl dimethyl ammonium bicarbonate, benzethonium chloride, and combinations thereof. 
     
     
         44 . A method of preparing an antimicrobial wipe, comprising:
 a first step of applying organic acid to a textile comprised of natural fibers, and   a second step of applying quaternary ammonium to the textile.   
     
     
         45 . The method of  claim 42  wherein the first step is conducted by a vendor and the second step is conducted by a customer. 
     
     
         46 . The method of  claim 42  wherein the wipe is disposable.

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