The present invention relates to cleaning sheets that resist folding, especially refolding upon themselves even after an initial fold has been formed in the sheet.
대표청구항▼
What is claimed: 1. A cleaning sheet comprising: a. at least three layers comprising: i. a first outer layer; ii. a second outer layer; and iii. a third central layer comprising a viscoelastic material in the form of a sheet, wherein said third central layer is disposed between said first outer lay
What is claimed: 1. A cleaning sheet comprising: a. at least three layers comprising: i. a first outer layer; ii. a second outer layer; and iii. a third central layer comprising a viscoelastic material in the form of a sheet, wherein said third central layer is disposed between said first outer layer and said second outer layer, and b. a liquid cleaning/refreshment composition releasably absorbed in said viscoelastic material; wherein said cleaning sheet comprises a longitudinal direction and said at least three layers form a plurality of apertures comprising: a perimeter having a length dimension corresponding to said longitudinal direction and a width dimension orthogonal to said longitudinal direction; wherein said at least three layers are thermally bonded at portions of said perimeter corresponding to said length dimension and not thermally bonded at portions of said perimeter corresponding to said width dimension; and wherein the central layer is fragmented, forming discontinuous regions. 2. The cleaning sheet according to claim 1, wherein said viscoelastic material comprises an open area of from about 10% to about 20% of the surface area of the viscoelastic material. 3. The cleaning sheet according to claim 1, wherein said first outer layer and said second outer layer are non-wovens. 4. The cleaning sheet according to claim 1, wherein said third central layer comprises a non-woven. 5. The cleaning sheet according to claim 1, wherein said third central layer is selected from the group consisting of a cellulosic material; a metallic material; a woven or knit material; a thermoset material. 6. The cleaning sheet according to claim 1, wherein said third central layer is selected from the group consisting of cellulosics, thermoplastic battings, metallic foils, metallic battings, sponges, formed films, and combinations thereof. 7. The cleaning sheet according to claim 1, wherein said first outer layer comprises an elongation to break, said second outer layer comprises an elongation to break and said third central layer comprises a elongation to break which is less than both the elongations to break of said first outer layer and said second outer layer. 8. The cleaning sheet according to claim 1, wherein said plurality of apertures is disposed in a regular, repeating pattern oriented generally in the longitudinal direction of said cleaning sheet. 9. The cleaning sheet according to claim 1, wherein the viscoelastic material comprises a polymer. 10. The cleaning sheet according to claim 1, wherein the viscoelastic material comprises a hydrophilic material and/or a hydrophobic material. 11. The cleaning sheet according to claim 10, wherein the hydrophilic material comprises a cellulosic material. 12. The cleaning sheet according to claim 1, wherein the viscoelastic material is prepared by solid state post formation technology. 13. The cleaning sheet according to claim 1, wherein the viscoelastic material is prepared by differential elongation composite technology. 14. The cleaning sheet according to claim 1, wherein the liquid cleaning/refreshment composition comprises water and a member selected from the group consisting of organic solvents, organic surfactants, auxiliary cleaning agents, perfumes and mixture thereof. 15. The cleaning sheet according to claim 1, wherein the liquid cleaning/refreshment composition comprises water and a surfactant. 16. The cleaning sheet according to claim 15, wherein the surfactant comprises a nonionic surfactant. 17. The cleaning sheet according to claim 16, wherein the nonionic surfactant is selected from the group consisting of ethoxylated alcohols, ethoxylated alkyl phenols and mixtures thereof. 18. The cleaning sheet according to claim 1, wherein said at least three layers is wholly or partially covered by a coversheet which is permeable to the liquid cleaning/refreshment composition. 19. The cleaning sheet according to claim 1 wherein the cleaning sheet is a dryer sheet. 20. The cleaning sheet according to claim 1, wherein the cleaning sheet further comprises a consumer signal component. 21. The cleaning sheet according to claim 1, wherein said at least three layers is wholly or partially covered by a cleaning sheet. 22. The cleaning sheet according to claim 21, wherein the coversheet substantially encases said at least three layers. 23. The cleaning sheet according to claim 21, wherein said at least three layers is bonded to the coversheet at discrete areas, whereby, in-use, said at least three layers is maintained in its original configuration relative to the coversheet. 24. The cleaning sheet according to claim 21, wherein the coversheet comprises a hydrophobic material. 25. The cleaning sheet according to claim 24, wherein the coversheet comprises a hydrophobic ink. 26. The cleaning sheet according to claim 24, wherein the coversheet comprises paint. 27. The cleaning sheet according to claim 21, wherein the coversheet comprises a cellulosic material. 28. The cleaning sheet according to claim 21, wherein the coversheet comprises apertures. 29. The cleaning sheet according to claim 21, wherein the coversheet comprises crepe. 30. The cleaning sheet according to claim 24, wherein the hydrophobic material comprises crepe. 31. The cleaning sheet according to claim 21, wherein the coversheet comprises polyethylene. 32. The cleaning sheet according to claim 21, wherein the coversheet comprises nylon. 33. An overall non-immerion cleaning/refreshment process for treating a fabric, which optionally comprises a prespotting operation, comprising the overall steps of: a) placing the fabric together with the cleaning sheet according to claim 1 in a tumbling apparatus; and b) operating the tumbling apparatus. 34. The process according to claim 33 wherein the tumbling apparatus is a hot air clothes dryer. 35. The process according to claim 33 wherein the process further comprises placing the fabric together with the cleaning sheet according to claim 1 into a containment bag prior to placing into the tumbling apparatus. 36. The process according to claim 35 wherein vapors are vented from the containment bag during step b). 37. A kit comprising a plurality of cleaning sheets according to claim 1. 38. A kit comprising: a) one or more cleaning sheets according to claim 1; and b) a re-usable containment bag. 39. A kit comprising: a) one or more cleaning sheets according to claim 1; and b) a stain remover system.
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