Nonwoven fabric for increasing the availability of chlorine 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 chlorine 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 nonionic modified siloxane 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 nonionic modified siloxane additive may be disposed on at least one of the first surface or the second surface.
Claims18
A wipe for preventing chlorine depletion, comprising:
- (a) a first nonwoven layer comprising a first group of continuous polyolefin filaments;
- (b) a second nonwoven layer comprising a second group of continuous filaments;
- (c) at least one pulp layer comprising cellulosic pulp and acrylic polymeric staple fibers, wherein the at least one pulp layer is disposed directly between the first nonwoven layer and the second nonwoven layer, and wherein the first nonwoven layer, the second nonwoven layer, and the at least one pulp layer are hydroentangled together and define a hydroentangled nonwoven fabric having a first surface and a second surface;
- and
- (d) a nonionic modified siloxane additive disposed on at least one of the first surface or the second surface;
- wherein the hydroentangled nonwoven fabric is devoid of meltblown fibers.
A method for producing a wipe, comprising:
- (a) hydroentangling together (i) a first nonwoven layer comprising a first group of continuous filaments, (ii) a second nonwoven layer comprising a second group of continuous filaments, and (iii) at least one pulp layer comprising cellulosic pulp and acrylic polymeric staple fibers to form a hydroentangled nonwoven fabric having a first surface and a second surface;
- wherein the at least one pulp player is disposed directly between the first nonwoven layer and the second nonwoven layer;
- and
- (b) applying a nonionic siloxane additive onto at least one of the first surface or the second surface;
- wherein the wipe is devoid of meltblown fibers.
Dependencies are inferred from the claim text.