Nonwoven cleaning substrate
The presently disclosed subject matter relates to nonwoven materials and their use in cleaning articles. More particularly, the nonwovens are layered structures including a rough outer surface which are useful for scrubbing and cleaning purposes.
1. A multi-layer nonwoven material, comprising:
a first outer layer comprising from about 10 gsm to about 50 gsm of bicomponent fibers; and
a second outer layer comprising synthetic fibers and optionally cellulose fibers,
wherein the first outer layer is heat-treated to provide a rough outer surface having a static coefficient of friction ranging from about 0.01 to about 3.0 and a kinetic coefficient of friction ranging from about 0.0001 to about 2.0,
wherein the synthetic fibers comprise bicomponent fibers,
wherein the first outer layer comprises bicomponent fibers having a first dtex value and the second outer layer comprises bicomponent fibers having a second dtex value, and wherein the first dtex value is greater than the second dtex value.
2. The multi-layer nonwoven material of claim 1 , wherein at least one of the first outer layer and the second outer layer comprises binder.
3. The multi-layer nonwoven material of claim 1 , wherein the second outer layer comprises both cellulose fibers and synthetic fibers.
4. The multi-layer nonwoven material of claim 1 , further comprising an intermediate layer.
5. The multi-layer nonwoven material of claim 4 , wherein the intermediate layer comprises cellulose fibers.
6. The multi-layer nonwoven material of claim 5 , wherein the intermediate layer comprises bicomponent fibers.
7. The multi-layer nonwoven material of claim 1 , further comprising a first intermediate layer, disposed between the first outer layer and the second outer layer, and comprising cellulose fibers.
8. The multi-layer nonwoven material of claim 7 , further comprising a second intermediate layer, disposed adjacent to the first outer layer, and comprising bicomponent fibers.
9. The multi-layer nonwoven material of claim 8 , further comprising a third intermediate layer, disposed adjacent to the second outer layer, and comprising bicomponent fibers.
10. The multi-layer nonwoven material of claim 1 , wherein the multi-layer nonwoven material is heat-treated at a temperature of from about 110° C. to about 200° C.
11. The multi-layer nonwoven material of claim 1 , wherein the multi-layer nonwoven material is heat-treated at a temperature of from about 135° C. to about 150° C.