Non-Sorptive or Minimally Sorptive Disinfectant Wipes

Abstract

A disinfectant wipe is provided including a substrate that is substantially free of polyamides, and an acid anionic disinfectant is adsorbed to the substrate such that the disinfectant readily releases from the substrate to allow at least 65% delivery of the disinfectant when wiped on a surface. The substrate may be a woven, nonwoven, knit fabric, a foam, sponge or film composition and may be formed from polyester, polypropylene, nylon, cotton, rayon, acrylic, or combinations thereof. The acid anionic disinfectant has a pH below 7, below 5, below 3 and below 2. The substrate used to prepare the disinfectant wipe is not pretreated with the disinfectant or a release composition before applying the disinfectant. That is, the disinfectant is not applied and re-applied to ensure release onto a surface. In an embodiment of the invention acid anionic disinfectant is an antimicrobial agent.

We claim: 
     
         1 . A disinfectant wipe, comprising:
 a substrate substantially free of polyamides or Lewis bases, Lewis bases characterized by the conjugate acid form of the Lewis base possessing a pKa about 0 or lower; an acid anionic disinfectant adsorbed to the substrate such that the disinfectant readily releases from the substrate to allow at least 65% delivery of the active disinfectant when squeezed.   
     
     
         2 . The disinfectant wipe of  claim 1 , wherein the substrate is comprised of a woven, nonwoven, knit fabric, a foam, sponge or film composition. 
     
     
         3 . The disinfectant wipe of  claim 1  wherein the substrate is comprised of fibers. 
     
     
         4 . The disinfectant wipe of  claim 1  wherein the substrate is comprised of polyester, polypropylene, nylon, cotton, rayon, acrylic, or combinations thereof. 
     
     
         5 . The disinfectant wipe of  claim 1  wherein the acid anionic disinfectant has a pH below 7. 
     
     
         6 . The disinfectant wipe of  claim 1  wherein the acid anionic disinfectant has a pH below 5. 
     
     
         7 . The disinfectant wipe of  claim 1  wherein the acid anionic disinfectant has a pH below 4. 
     
     
         8 . The disinfectant wipe of  claim 1  wherein the acid anionic disinfectant has a pH below 3. 
     
     
         9 . The disinfectant wipe of  claim 1  wherein the acid anionic disinfectant has a pH below 2. 
     
     
         10 . The disinfectant wipe of  claim 1  wherein the acid anionic disinfectant has at least about a 75% delivery. 
     
     
         11 . The disinfectant wipe of  claim 1  wherein the acid anionic disinfectant has at least about an 80% delivery. 
     
     
         12 . The disinfectant wipe of  claim 4  wherein the synthetic material is comprised of polyolefin. 
     
     
         13 . The disinfectant wipe of  claim 10  wherein the polyolefin is comprised of polyethylene and polypropylene. 
     
     
         14 . The disinfectant wipe of  claim 2  wherein the substrate is comprised of a nonwoven material. 
     
     
         15 . The disinfectant wipe of  claim 14  wherein the nonwoven is manufactured by a method comprised of spinbonding, meltblowing, dry laid, air laid or wet laid processes. 
     
     
         16 . The disinfectant wipe of  claim 1  wherein the substrate is not pretreated with the disinfectant or a release composition before applying the disinfectant. 
     
     
         17 . The disinfectant wipe of  claim 1  wherein the disinfectant is an antimicrobial agent. 
     
     
         18 . The disinfectant wipe of  claim 17  wherein the acid anionic disinfectant is comprised of linear alkylbenzene sulfonic acid, sodium dodecylsulfate, sodium lauryl sulfate, sulfonated oleic acid, and the potassium or sodium salts thereof, and combinations thereof. 
     
     
         19 . The disinfectant wipe of  claim 17  wherein the acid anionic disinfectant is selected from the group consisting of linear alkylbenzene sulfonic acid, sodium dodecylsulfate, sodium lauryl sulfate, sulfonated oleic acid, and the potassium or sodium salts thereof, and combinations thereof. 
     
     
         20 . The disinfectant wipe of  claim 1  wherein the acid anionic disinfectant is comprised of linear alkylbenzene sulfonic acid. 
     
     
         21 . The disinfectant wipe of  claim 1  wherein the acid anionic disinfectant has at least about an 85% delivery rate when squeezed. 
     
     
         22 . The disinfectant wipe of  claim 1  wherein the acid anionic disinfectant has at least about a 90% delivery rate when squeezed. 
     
     
         23 . The disinfectant wipe of  claim 1  wherein the substrate is comprised of synthetic material. 
     
     
         24 . The disinfectant wipe of  claim 4  wherein the synthetic material is comprised of polyolefin.