Method of treating nonwoven fabrics with non-ionic fluoropolymers
AssigneeKimberly-Clark Worldwide, Inc.
InventorsHue Scott Snowden, Michael D. Powers, Phillip Andrew Schorr
Life of this patent
Estimating the term…
Abstract
The present invention provides a method of treating a nonwoven fabric to improve alcohol repellency that includes contacting a nonwoven fabric with an aqueous treatment solution that includes a non-ionic fluoropolymer and essentially no antistatic agent or less than 0.05 weight percent by weight of an antistatic agent. The present invention also provides a nonwoven fabric with improved alcohol repellency.
Claims12
A topically treated nonwoven fabric laminate, the nonwoven fabric laminate comprising at least one spunbond layer and at least one meltblown layer, and the laminate further comprising a dried coating of a non-ionic fluoropolymer composition on said spunbond and meltblown layers, said composition applied in solution form to said laminate so as to permeate and coat all layers of said laminate;
- and wherein the nonwoven fabric laminate further comprises an antistatic agent applied over said coating of non-ionic fluoropolymer on one side of said laminate, and wherein the antistatic agent is an organic phosphate ester.
Dependencies are inferred from the claim text.