Dispersible hydroentangled basesheet with triggerable binder
The present disclosure is generally directed to a dispersible moist wipe comprising hydroentangled fibers and a binder composition. The moist wipe demonstrates high initial wet strength while maintaining effective dispersion in an aqueous environment. The moist wipe has potential application as a flushable surface cleaning product and/or a flushable cleansing cloth.
1. A dispersible moist wipe comprising:
entangled fibers comprising regenerated fibers in an amount of about 5 to about 30 percent by weight and natural fibers in an amount of about 70 to about 95 percent by weight; and,
from about 0.5 gsm to about 5 gsm of a binder composition, wherein the binder composition comprises a composition having the structure:
wherein x=1 to about 15 mole percent; y=about 60 to about 99 mole percent; and z=0 to about 30 mole percent; Q is selected from C 1 -C 4 alkyl ammonium, quaternary C 1 -C 4 alkyl ammonium and benzyl ammonium; Z is selected from —O—, —COO—, —OOC—, —CONH—, and —NHCO—; R 1 , R 2 , R 3 are independently selected from hydrogen and methyl; R 4 is C 1 -C 4 alkyl; R 5 is selected from hydrogen, methyl, ethyl, butyl, ethylhexyl, decyl, dodecyl, hydroxyethyl, hydroxypropyl, polyoxyethylene, and polyoxypropylene;
wherein the moist wipe has a geometric mean tensile (GMT) wet strength of at least about 300 g/in and a GMT soak wet strength of less than about 180 g/in.
2. The dispersible moist wipe of claim 1 , wherein the moist wipe comprises from about 1.2 gsm to about 2.6 gsm of the binder composition.
3. The dispersible moist wipe of claim 1 , wherein the moist wipe has a GMT wet strength of at least about 500 g/in.
4. The dispersible moist wipe of claim 1 , wherein the moist wipe has a GMT wet strength of from about 300 g/in to about 900 g/in and a GMT soak wet strength of from about 130 g/in to about 175 g/in.
5. A dispersible moist wipe comprising:
entangled fibers comprising regenerated fibers in an amount of about 5 to about 30 percent by weight and natural fibers in an amount of about 70 to about 95 percent by weight; and,
from about 0.5 gsm to about 5 gsm of a binder composition, wherein the binder composition comprises the polymerization product of a vinyl-functional cationic monomer and one or more hydrophobic vinyl monomers with alkyl side chains of 1 to 4 carbon atoms;
wherein the moist wipe has a geometric mean tensile (GMT) wet strength of at least about 300 g/in and a GMT soak wet strength of less than about 180 g/in.
6. The dispersible moist wipe of claim 5 , wherein the vinyl-functional cationic monomer is selected from [2-(acryloxy)ethyl]dimethyl ammonium chloride, [2-(methacryloxy)ethyl]dimethyl ammonium chloride, [2-(acryloxy)ethyl]trimethyl ammonium chloride, [2-(methacryloxy)ethyl]trimethyl ammonium chloride, (3-acrylamidopropyl)trimethyl ammonium chloride, N,N-diallyldimethyl ammonium chloride, [2-(acryloxy)ethyl]dimethylbenzyl ammonium chloride, and [2-(methacryloxy)ethyl]dimethylbenzyl ammonium chloride.
7. The dispersible moist wipe of claim 5 , wherein the moist wipe comprises from about 1.2 gsm to about 2.6 gsm of the binder composition.
8. The dispersible moist wipe of claim 5 , wherein the moist wipe has a GMT wet strength of at least about 500 g/in.
9. The dispersible moist wipe of claim 5 , wherein the moist wipe has a GMT wet strength of from about 300 g/in to about 900 g/in and a GMT soak wet strength of from about 130 g/in to about 175 g/in.
10. A dispersible moist wipe comprising:
entangled fibers; and,
from about 0.5 gsm to about 5 gsm of a binder composition, wherein the binder composition comprises a composition having the structure:
wherein x=1 to about 15 mole percent; y=about 60 to about 99 mole percent; and z=0 to about 30 mole percent; Q is selected from C 1 -C 4 alkyl ammonium, quaternary C 1 -C 4 alkyl ammonium and benzyl ammonium; Z is selected from —O—, —COO—, —OOC—, —CONH—, and —NHCO—; R 1 , R 2 , R 3 are independently selected from hydrogen and methyl; R 4 is C 1 -C 4 alkyl; R 5 is selected from hydrogen, methyl, ethyl, butyl, ethylhexyl, decyl, dodecyl, hydroxyethyl, hydroxypropyl, polyoxyethylene, and polyoxypropylene;
wherein the moist wipe has a geometric mean tensile (GMT) wet strength of at least about 300 g/in and a GMT soak wet strength of less than about 180 g/in.
11. The dispersible moist wipe of claim 10 wherein the fibers comprise a mixture of regenerated fibers having a length in the range of about 4 mm to about 15 mm and natural fibers having a length greater than about 1 mm.
12. The dispersible moist wipe of claim 10 , wherein the moist wipe comprises from about 1.2 gsm to about 2.6 gsm of the binder composition.
13. The dispersible moist wipe of claim 10 , wherein the moist wipe has a GMT wet strength of at least about 500 g/in.
14. The dispersible moist wipe of claim 10 , wherein the moist wipe has a GMT wet strength of from about 300 g/in to about 900 g/in and a GMT soak wet strength of from about 130 g/in to about 175 g/in.