Dispersible hydroentangled basesheet with triggerable binder

Patent metadata

Field	Value
Publication number	US-2016355979-A1
Application number	US-201615241324-A
Country	US
Kind code	A1
Filing date	Aug 19, 2016
Priority date	Jan 31, 2014
Publication date	Dec 8, 2016
Grant date	—

Abstract

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.

First claim

What is claimed is:

1 . A dispersible moist wipe comprising:
entangled fibers; and, 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.

2 . The dispersible moist wipe as set forth in claim 1 wherein the wipe has a geometric mean tensile (GMT) wet strength of at least 300 grams per inch (g/in).

3 . The dispersible moist wipe as set forth in claim 2 wherein the GMT wet strength is at least about 500 g/in.

4 . The dispersible moist wipe as set forth in claim 2 wherein the GMT wet strength is at least about 700 g/in.

5 . The dispersible moist wipe as set forth in claim 1 wherein the wipe has a GMT soak wet strength of less than about 180 g/in.

6 . The dispersible moist wipe as set forth in claim 5 wherein the GMT soak strength of the wipe is less than about 160 g/in.

7 . The dispersible moist wipe as set forth in claim 5 wherein the GMT soak strength of the wipe is less than about 140 g/in.

8 . The dispersible moist wipe as set forth in claim 1 wherein the wipe has a CD stretch percent greater than about 40%.

9 . The dispersible moist wipe as set forth in claim 8 wherein the CD stretch percent of the wipe is between about 45% and about 55%.

10 . The dispersible moist wipe as set forth in claim 8 wherein the CD stretch percent of the wipe is between about 47% and about 49%.

11 . A dispersible moist wipe having a geometric mean tensile (GMT) wet strength of at least about 300 grams per inch (g/in), a GMT soak wet strength of less than about 180 g/in, and a CD stretch percent greater than about 40%.

12 . The dispersible moist wipe as set forth in claim 11 wherein the GMT wet strength is at least about 500 g/in.

13 . The dispersible moist wipe as set forth in claim 12 wherein the GMT wet strength is at least about 700 g/in.

14 . The dispersible moist wipe as set forth in claim 12 wherein the GMT soak strength of the wipe is less than about 160 g/in.

15 . The dispersible moist wipe as set forth in claim 12 wherein the GMT soak strength of the wipe is less than about 140 g/in.

16 . The dispersible moist wipe as set forth in claim 12 wherein the CD stretch percent of the wipe is between about 45% and about 55%.

17 . The dispersible moist wipe as set forth in claim 12 wherein the CD stretch percent of the wipe is between about 47% and about 49%.

18 . The dispersible moist wipe as set forth in claim 12 wherein the wet density is in a range from about 0.100 g/ccm to about 0.115 g/ccm.

19 . The dispersible moist wipe as set forth in claim 12 wherein the wet density is in a range from about 0.110 g/ccm to about 0.112 g/ccm.

20 . A dispersible moist wipe comprising:
entangled fibers; and, 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 vinyl-functional cationic monomer is selected from the group consisting of [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, [2-(methacryloxy)ethyl]dimethylbenzyl ammonium chloride and combinations thereof.

Assignees

• Kimberly Clark Co

Inventors

• Zwick Kenneth John
• Vogel Nathan John
• Lee Wanduk
• Baker Joseph Kenneth
• Ackroyd Colin

Classifications

• D21H17/45

  Nitrogen-containing groups · CPC title

• Y10T428/24802

  Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.] · CPC title

• D21H23/24

  during paper manufacture · CPC title

• D04H1/465

  Hydraulic needling · CPC title

• Y10T442/698

  Containing polymeric and natural strand or fiber materials · CPC title