Nonwoven fabric for increasing the availability of quaternary ammonium in solution
AssigneeAVINTIV Specialty Materials Inc.
InventorsHerbert P. Hartgrove, Dianne B. Ellis, Dawn Ellen Huston, Teresa Ann Oldham
Life of this patent
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Abstract
Wipes for preventing quaternary ammonium (“quat”) depletion suitable for commercial applications (e.g., industrial and consumer disinfectant wipes) are provided. The wipe includes at least one nonwoven layer, at least one pulp layer, and a cationic additive. The at least one nonwoven layer and the at least one pulp layer may be hydroentangled to form a hydroentangled nonwoven fabric having a first surface and a second surface. Additionally, the cationic additive may be disposed on at least one of the first surface or the second surface.
Claims16
A wipe for preventing quaternary ammonium depletion, comprising:
- (a) a first spunbond layer and a second spunbond layer, wherein the first spunbond layer, the second spunbond layer, or both comprises one or more polyolefins;
- (b) at least one pulp layer disposed between the first spunbond layer and the second spunbond layer, the at least one pulp layer comprising (i) pulp and (ii) acrylic meltblown fibers, acrylic staple fibers, or both, and wherein the at least one pulp layer, the first spunbond layer, and the second spunbond layer are hydroentangled together and define a hydroentangled nonwoven fabric having a first surface and a second surface;
- and
- (c) a cationic additive disposed on at least one of the first surface or the second surface.
Dependencies are inferred from the claim text.