Dispersible Wet Wipes Made Using Short Cellulose Fibers for Enhanced Dispersibility
The present disclosure generally relates to dispersible wet wipes. More particularly, the disclosure relates to a dispersible wet wipe constructed of a wipe substrate containing a tissue web consisting of cellulose fibers and a binder composition for binding said binder composition to said tissue web. The tissue web contains cellulose fibers that have a fiber length of 3 mm or less. The construction of the dispersible wipes may allow for a pass through percentage value calculates via a dispersibility shake flask test of at least about 70 percent for increased dispersibility. More desirably, the single-ply dispersible wet wipes may have a pass through percentage value of at least about 95 percent.
1 . A dispersible wet wipe comprising:
a wipe substrate containing a tissue web consisting of cellulose fibers, wherein said cellulose fibers have a fiber length of 3 mm or less, and a binder composition for binding said binder composition to said tissue web, wherein said binder composition is present at an add-on rate of between about 1 percent and about 15 percent based on total weight the wipe substrate, the binder composition comprising less than about 18 percent by weight of binder composition solids; and
a wetting composition containing between 0.4 and 3.5 percent salt.
2 . The dispersible wet wipe of claim 1 wherein said binder composition is present at an add-on rate of between about 1 and about 8 percent based on total weight the wipe substrate.
3 . The dispersible wet wipe of claim 1 wherein the binder composition comprising less than about 16 percent by weight of binder composition solids
4 . The dispersible wet wipe of claim 1 wherein the fibrous substrate comprises an uncreped through-air dried tissue web.
5 . The dispersible wet wipe of claim 1 wherein the wet wipe has an in-use machine direction tensile strength of greater than 300 grams per linear inch.
6 . The dispersible wet wipe of claim 1 wherein the wet wipe has an post-use machine direction tensile strength of less than 200 grams per linear inch.
7 . The dispersible wet wipe of claim 1 wherein the wet wipe has a ratio of machine direction tensile strength to cross-direction tensile strength of less than 2.25.
8 . The dispersible wet wipe of claim 1 wherein the wet wipe has a geometric mean tensile strength of at least 300 grams per linear inch.
9 . The dispersible wet wipe of claim 1 wherein the wipe substrate comprises a single layer.
10 . The dispersible wet wipe of claim 1 wherein said wipe substrate has a formation value of greater than 20.
11 . A dispersible wet wipe comprising:
a wipe substrate containing a tissue web consisting of cellulose fibers, wherein said cellulose fibers have a fiber length of 3 mm or less, and a binder composition for binding said binder composition to said tissue web, said binder composition is present at an add-on rate of between about 1 and about 15 percent; and
a wetting composition containing between about 0.4 and about 3.5 percent salt;
wherein said dispersible wet wipe has a pass through percentage value of at least about 70 percent.
12 . The dispersible wet wipe of claim 11 wherein said dispersible wet wipe has a pass through percentage value of at least about 95 percent.
13 . The dispersible wet wipe of claim 11 wherein said binder composition is present at an add-on rate of between about 1 and about 8 percent based on total weight of the wipe substrate.
14 . The dispersible wet wipe of claim 11 wherein the binder composition comprising less than about 18 percent by weight of binder composition solids.
15 . The dispersible wet wipe of claim 11 wherein the fibrous substrate comprises an uncreped through-air dried tissue web.
16 . The dispersible wet wipe of claim 11 wherein the wet wipe has an in-use machine direction tensile strength of greater than 300 grams per linear inch.
17 . The dispersible wet wipe of claim 11 wherein the wet wipe has an post-use machine direction tensile strength of less than 200 grams per linear inch.
18 . The dispersible wet wipe of claim 11 a pass through percentage value of at least about 70 percent.
19 . The dispersible wet wipe of claim 11 wherein said wipe substrate has a formation value of greater than 18.
20 . The dispersible wet wipe of claim 11 wherein the wet wipe has a ratio of machine direction tensile strength to cross-direction tensile strength of less than 2.25.
21 . The dispersible wet wipe of claim 11 wherein the wet wipe has a geometric mean tensile strength of at least 300 grams per linear inch.