Wet wipes having improved dispensability

• US 5,540,332 A
• Filed: 04/07/1995
• Issued: 07/30/1996
• Est. Priority Date: 04/07/1995
• Status: Expired due to Term

• Current Assignee: Kimberly-Clark Worldwide Incorporated (Kimberly-Clark Corporation)
• Original Assignee: Kimberly-Clark Corporation
• Inventors: Zander, Teresa M., Everson, Mark G., Hammonds, Yvette L., Cesco-Cancian, Annamaria, Kopacz, Thomas J.
• Primary Examiner(s): THOMAS, ALEXANDER S
• Application Number:
  US08/418,737
• Time in Patent Office: 480 Days
• Field of Search: 428/121, 428/126, 428/195, 428/192, 221/48, 221/50, 221/47, 206/494
• US Class Current: 206/494
• CPC Class Codes: A47K 10/421 dispensing from the top of the dispenser A47K10/44 takes precedence
• CPC Class Codes: A47K 2010/3266 Wet wipes
• CPC Class Codes: A47K 2010/428 Details of the folds or interfolds of the sheets
• CPC Class Codes: B65D 83/0894 the articles being positioned relative to one another or to the container in a special way, e.g. for facilitating dispensing, without additional support
• CPC Class Codes: Y10T 428/24231 At opposed marginal edges
• CPC Class Codes: Y10T 428/24777 Edge feature

Abstract

A wet wipe having an improved dispensability and a method of producing the same are described. The wet wipe defines a pair of opposite end edges. At least a portion of one of the end edges is configured in a non-linear pattern which is adapted to facilitate a dispensing of the wet wipe. The end edge of the wet wipe which is configured in the non-linear pattern is further configured to provide a peel force of no more than 50 grams and a peel force ratio of at least 1.1. The wet wipe is also configured to provide an average dispensing force of no more than 10 grams and a dispensing force ratio of at least 1.1.

Claims

1. A wet wipe comprising a pair of opposite end edges wherein at least a portion of one of said end edges is configured in a non-linear pattern which is adapted to facilitate a dispensing of said wet wipe wherein said non-linear pattern defines a repeat length of from about 2.0 to about 20.0 millimeters.

2. The wet wipe according to claim 1 wherein said wet wipe comprises a gas-formed matrix of thermoplastic polymeric meltblown microfibers and wood pulp fibers having a basis weight of from 25 to 120 grams per square meter.

3. The wet wipe according to claim 1 wherein said wet wipe contains from 150 to 600 weight percent of a liquid based on a dry weight of said wet wipe.

4. The wet wipe according to claim 1 wherein said wet wipe is further arranged in a folded configuration.

5. The wet wipe according to claim 4 wherein said wet wipe defines a central portion and a top flap portion which is connected to and folded over upon said central portion along a first fold line and wherein said top flap portion includes said portion of said one end edge which is configured in said non-linear pattern.

6. The wet wipe according to claim 1 wherein said portion of said one end edge of said wet wipe which is configured in said non-linear pattern is further configured to provide a peel force of no more than 50 grams to facilitate said dispensing of said wet wipe.

7. The wet wipe according to claim 1 wherein said portion of said one end edge of said wet wipe which is configured in said non-linear pattern is further configured to provide a peel force of from 5 to 50 grams to facilitate said dispensing of said wet wipe.

8. The wet wipe according to claim 1 wherein said portion of said one end edge of said wet wipe which is configured in said non-linear pattern is further configured to provide a peel force ratio of at least 1.1.

9. The wet wipe according to claim 1 wherein said portion of said one end edge of said wet wipe which is configured in said non-linear pattern is further configured to provide a dispensing force of no more than 10 grams to facilitate said dispensing of said wet wipe.

10. The wet wipe according to claim 1 wherein said wet wipe is configured to provide a dispensing force ratio of at least 1.1 to facilitate said dispensing of said wet wipe.

11. The wet wipe according to claim 1 wherein said non-linear pattern is a sine wave pattern.

12. The wet wipe according to claim 11 wherein said sine wave pattern defines a height of from 1.5 to 3.0 millimeters.

13. The wet wipe according to claim 1 wherein said non-linear pattern is a zig-zag pattern.

14. The wet wipe according to claim 1 wherein at least a portion of said end edge of said wet wipe opposite said one end edge is configured in a non-linear pattern.

15. The wet wipe according to claim 1 wherein said repeat length is from about 5.0 to about 10.0 millimeters.

16. The wet wipe according to claim 1 wherein said wet wipe defines a substantially rectangular configuration.

17. A stack of wet wipes comprising a plurality of wet wipes which are arranged in a stacked configuration wherein each of said wet wipes includes a pair of opposite end edges which are arranged in a nonoverlapping manner with said end edges of adjacent wet wipes in said stacked configuration and wherein at least a portion of one of said end edges is configured in a non-linear pattern which defines a repeat length of from about 2.0 to about 20.0 millimeters and which is adapted to facilitate a dispensing of said wet wipe from said stack of wet wipes.

18. The stack of wet wipes of claim 17 wherein said stack of wet wipes includes at least 40 wet wipes.

19. The stack of wet wipes according to claim 17 wherein said stack of wet wipes contains from 150 to 600 weight percent of a liquid based on a dry weight of said stack of wet wipes.

20. The stack of wet wipes according to claim 17 wherein said at least one wet wipe is further arranged in a folded configuration.

21. The stack of wet wipes according to claim 20 wherein said at least one wet wipe defines a central portion and a top flap portion which is connected to and folded over upon said central portion along a first fold line and wherein said top flap portion includes said portion of said one end edge of said at least one wet wipe which is configured in said non-linear pattern.

22. The stack of wet wipes according to claim 17 wherein said portion of said one end edge of said at least one wet wipe which is configured in said non-linear pattern is further configured to provide a peel force of no more than 50 grams to facilitate said dispensing of said at least one wet wipe.

23. The stack of wet wipes according to claim 17 wherein said portion of said one end edge of said at least one wet wipe which is configured in said non-linear pattern is further configured to provide a peel force of from 5 to 50 grams to facilitate said dispensing of said at least one wet wipe.

24. The stack of wet wipes according to claim 17 wherein said portion of said one end edge of said at least one wet wipe which is configured in said non-linear pattern is further configured to provide a peel force ratio of at least 1.1.

25. The stack of wet wipes according to claim 17 wherein said portion of said one end edge of said at least one wet wipe which is configured in said non-linear pattern is further configured to provide a dispensing force of no more than 10 grams to facilitate said dispensing of said at least one wet wipe.

26. The stack of wet wipes according to claim 17 wherein said at least one wet wipe is configured to provide a dispensing force ratio of at least 1.1 to facilitate said dispensing of said at least one wet wipe.

27. The stack of wet wipes according to claim 17 wherein said non-linear pattern is a sine wave pattern.

28. The stack of wet wipes according to claim 17 wherein at least a portion of said end edge of said at least one wet wipe which is opposite said one end edge is configured in a non-linear pattern.

29. The stack of wet wipes according to claim 27 wherein said sine wave pattern defines a height of from 1.5 to 3.0 millimeters.

30. The stack of wet wipes according to claim 17 wherein said non-linear pattern defines a repeat length of from about 5.0 to about 10.0 millimeters.

31. A stack of wet wipes comprising:

a) a liquid; and

b) a plurality of wet wipes which are individually folded and arranged in a stacked configuration wherein at least one of said wet wipes defines;

i) a leading end edge;

ii) a central portion; and

iii) a top flap portion which includes said leading end edge and which is connected to and folded over upon said central portion along a first fold line wherein at least a portion of said leading end edge is configured in a non-linear pattern which defines a repeat length of from about 2.0 to about 20.0 millimeters and which is adapted to be peelingly lifted by a user to facilitate a dispensing of said at least one wet wipe from said stack of wet wipes.

32. The stack of wet wipes according to claim 31 wherein said at least one wet wipe further defines a bottom flap portion which includes a trailing end edge and which is connected to and folded under said central portion along a second fold line.

33. The stack of wet wipes according to claim 32 wherein at least a portion of said trailing end edge of said at least one wet wipe is configured in a non-linear pattern to facilitate said dispensing of said at least one wet wipe.

34. The stack of wet wipes according to claim 31 wherein said portion of said leading end edge of said at least one wet wipe is configured in a sine wave pattern.

35. The stack of wet wipes according to claim 34 wherein said sine wave pattern defines a height from 1.5 to 3.0 millimeters.

36. The stack of wet wipes according to claim 31 wherein said portion of said leading end edge of said at least one wet wipe which is configured in said non-linear pattern is further configured to provide a peel force of no more than 50 grams.

37. The stack of wet wipes according to claim 31 wherein said portion of said leading end edge of said at least one wet wipe which is configured in said non-linear pattern is further configured to provide a peel force ratio of at least 1.1.

38. A package of wet wipes, comprising:

a) a container which defines an interior and is capable of being sealingly closed;

b) a stack of wet wipes which is disposed in said interior of said container, said stack of wet wipes comprising a plurality of wet wipes which contain a liquid and which are individually folded and arranged in a stacked configuration wherein at least one of said wet wipes defines;

i) a leading end edge;

ii) a central portion; and

iii) a top flap portion which includes said leading end edge and which is connected to and folded over upon said central portion along a first fold line wherein at least a portion of said leading end edge is configured in a non-linear pattern which defines a repeat length of from about 2.0 millimeters to about 20.0 millimeters and which is adapted to be peelingly lifted by a user to facilitate a dispensing of said at least one wet wipe from said stack of wet wipes.

39. The package of wet wipes according to claim 38 wherein said portion of said leading end edge of said at least one wet wipe is configured in a sine wave pattern.

40. The package of wet wipes according to claim 38 wherein said portion of said leading end edge of said at least one wet wipe is configured to provide a peel force of no more than 50 grams to facilitate said dispensing of said at least one wet wipe.

41. The package of wet wipes according to claim 38 wherein said portion of said leading end edge of said at least one wet wipe is configured to provide a peel force ratio of at least 1.1 to facilitate said dispensing of said at least one wet wipe.

42. The package of wet wipes according to claim 38 wherein said portion of said leading end edge of said at least one wet wipe is configured to provide a dispensing force of no more than 10 grams to facilitate said dispensing of said at least one wet wipe.

43. The package of wet wipes according to claim 38 wherein said at least one wet wipe is configured to provide a dispensing force ratio of at least 1.1 to facilitate said dispensing of said at least one wet wipe.

44. The package of wet wipes according to claim 38 wherein said container comprises a plastic tub which includes a reclosable top.

45. The package of wet wipes according to claim 38 wherein said interior of said container includes a width which is substantially equal to a stack width of said stack of wet wipes and wherein said interior of said container includes a length which is substantially equal to a stack length of said stack of wet wipes.

46. A method for providing a stack of wet wipes which are easily dispensed, said method comprising the steps of:

a) providing a continuously moving web of material which includes a pair of opposite side edges wherein at least a section of one of said side edges of said web of material is configured in a non-linear pattern which defines a repeat length of from about 2.0 to about 20.0 millimeters;

b) folding said web of material along a first fold line to define a central portion and a top flap portion which includes said section of said one side edge and which is folded over upon said central portion;

c) selectively cutting said folded web of material to provide a plurality of generally rectangular, folded over wet wipes wherein said section of said one side edge of said web of material which is configured in said non-linear pattern provides at least a portion of an end edge of at least one of said wet wipes; and

d) arranging each of said folded over wet wipes in a stacked configuration to form said stack of wet wipes wherein said portion of said end edge of said at least one wet wipe is arranged in a nonoverlapping manner with said end edges of adjacent wet wipes in said stacked configuration and is adapted to be peelingly lifted by a user to facilitate a dispensing of said at least one wet wipe from said stack of wet wipes.

47. The method according to claim 46 and further comprising the step of folding said web of material about a second fold line to define a bottom flap portion which is folded under said central portion.

48. The method according to claim 46 wherein at least a section of said side edge of said web of material opposite said one side edge is configured in a non-linear pattern.

49. The method according to claim 46 wherein said non-linear pattern is a sine wave pattern.

50. The method according to claim 49 wherein said sine wave pattern defines a height of from 1.5 to 3.0 millimeters.

51. The method according to claim 46 and further comprising the step of adding a liquid to said web of material before said step of folding said web of material.