Method for treating non-woven webs
View Patent ↗The present invention describes a means for fixing skin care ingredients on the surface of non-woven webs and cellulosic mats. The active ingredients can be released (deposited) onto the skin by normal triggering mechanisms, which include the action of water or urine or by friction or rubbing. The fixative systems described herein provide the ability to control high load levels while not interfering with the wettabliity of the fabric or paper. Additionally, incompatible/reactive ingredients can be treated onto the same web and are kept as separate particles fixed to the surface until released.
1. A method for treating a non-woven web comprising the steps of:
dispersing one or more starches in water,
wherein the one or more starches have been converted to a water fluidity of at least 40;
adding one or more oily mobile materials to said starch dispersion to form a mixture, and
applying the mixture to a non-woven web.
2. The method of claim 1 , wherein the one or more oily mobile materials is an emollient.
3. The method of claim 1 , wherein the one or more starches is selected from the group consisting of waxy maize, tapioca, potato and sago.
4. The method of claim 3 , wherein the one or more starches is at least a converted starch.
5. The method of claim 3 , wherein the one or more starches is modified with octenyl succinic anhydride, propylene oxide or sodium hypochloride.
6. The method of claim 1 , wherein the one or more oily mobile materials is selected from the group consisting of an emollient, a surfactant, and a blend of a surfactant and an emollient.
7. The method of claim 6 , wherein the one or more starches is a pyrodextrin or maltodextrin.
8. The method of claim 7 , wherein the pyrodextrin or maltodextrin is chemically modified with octenyl succinic anhydride and the one or more oily materials is petrolatum, the composition further comprising a surfactant.