Dispersible moist wipe with emulsion for prevention of skin irritation
View Patent ↗A dispersible moist wipe used to clean urine and fecal matter from the skin. The wetting solution is an oil-in-water emulsion containing silicone oil. Phase separation is prevented with one or more gums, propylene glycol alginate, and a Gemini surfactant or phosphate ester.
1. A moist wipe comprising:
a stable wetting composition for the prevention of skin irritation, the stable wetting composition comprising:
disodium ethylene dicocamide PEG-15 disulfate;
a gum blend comprising a gum and propylene glycol alginate, wherein the amount of the gum blend is 0.01% to 0.5% by weight; wherein the gum is selected from the group consisting of guar gum, gellan gum, acacia gum, cellulose gum, dehydroxanthan gum, sclerotium gum, locust bean gum and combinations thereof;
1% to 10% by weight silicone oil;
85% to 98% by weight water;
a salt containing monovalent and/or divalent ions; and
a dispersible substrate onto which the stable wetting composition has been applied; wherein the amount of salt is that which is effective to preserve the wet strength of the dispersible substrate during storage;
wherein the viscosity of the stable wetting composition is less than 5000 centipoise; and wherein the stable wetting composition maintains stability after at least one freeze-thaw cycle.
2. The moist wipe of claim 1 wherein the silicone oil consists of dimethicone.
3. The moist wipe of claim 1 wherein the silicone oil is selected from the group consisting of dimethicone, amodimethicone and derivatives thereof, dimethiconol, cyclomethicone, stearyl dimethicone, behenyl dimethicone, phenyl trimethicone and combinations thereof.
4. The moist wipe of claim 1 further comprising a preservative.
5. The moist wipe of claim 1 further comprising a pH adjusting agent.
6. The moist wipe of claim 1 wherein the gum consists of xanthan gum and guar gum.
7. The moist wipe of claim 1 wherein the substrate comprises spunbond fabric, meltblown fabric, knit fabric, wet-laid fabric, scrims or needle-punched webs.
8. The moist wipe of claim 1 wherein the substrate is airlaid nonwoven fabric.
9. A moist wipe comprising:
a stable wetting composition for the prevention of skin irritation, the stable wetting composition having a viscosity of less than 5000 centipoise and comprising:
disodium ethylene dicocamide PEG-15 disulfate;
xanthan gum, guar gum and propylene glycol alginate;
1% to 10% by weight dimethicone;
85% to 98% by weight water; and
a salt containing monovalent and/or divalent ions; and
a non-woven substrate onto which the stable wetting composition has been applied; wherein the stable wetting composition maintains stability after at least one freeze-thaw cycle.
10. A stable wetting composition for a moist wipe comprising:
disodium ethylene dicocamide PEG-15 disulfate;
a gum blend comprising xanthan gum, guar gum and propylene glycol alginate, wherein the amount of gum blend is 0.05% to 0.5% by weight;
1% to 10% by weight silicone oil;
1% to 3% salt containing monovalent and/or divalent ions; and
95% to 98% by weight water;
wherein the viscosity of the stable wetting composition is less than 5000 centipoise; and
wherein the stable wetting composition maintains stability after at least one freeze-thaw cycle.
11. The moist wipe of claim 1 , wherein the stable wetting composition maintains stability after at least three freeze-thaw cycles.
12. The moist wipe of claim 9 , wherein the stable wetting composition maintains stability after at least three freeze-thaw cycles.
13. The stable wetting composition for a moist wipe of claim 10 , wherein the stable wetting composition maintains stability after at least three freeze-thaw cycles.