Clean room wipes

• US 8,431,497 B2
• Filed: 08/25/2009
• Issued: 04/30/2013
• Est. Priority Date: 08/25/2009
• Status: Active Grant

• Current Assignee: Berkshire Corporation, Highland Industries, Inc. (Ningbo Junsheng Investment Group Co., Ltd.)
• Original Assignee: Berkshire Corporation
• Inventors: Davidson, Adam S., Faile, Susan E.
• Primary Examiner(s): JOHNSON, JENNA LEIGH
• Application Number:
  US12/546,912
• Publication Number:
  US 20110048977A1
• Time in Patent Office: 1,344 Days
• Field of Search: 510/438, 510/439, 510/441, 811/56, 811/554, 811/556, 442/121
• US Class Current: 442/121
• CPC Class Codes: B65D 75/5838 combined with separate fixed tearing means, e.g. tabs
• CPC Class Codes: D04B 1/16 synthetic threads
• CPC Class Codes: Y10T 442/2508 Coating or impregnation absorbs chemical material other than water

Abstract

A supply of clean room wipes. The supply of clean room wipes includes a sealed package and a plurality of wipes within the sealed package. The wipes in the package include a substrate and an anhydride finish applied to the substrate. The treated wipes have a Strength Contribution from Treatment (lbs) when tested using a standard trap tear method ASTM D 5587:1996 of greater than about 10% and an average improvement in Percent Carbon Black Pick-Up greater than about 10% compared to an untreated wipe. In addition, a sealed edge may be applied along the perimeter of each wipe to prevent loss of material from the wipe during use.

Claims

1. A supply of clean room wipes, said product comprising:

(a) a sealed package; and

(b) a plurality of wipes within said sealed package, said plurality of wipes having a ethylene maleic anhydride (EMA) particle capture and retention finish of between about 0.02 wt. % and about 2 wt. % solids on weight of said substrate, having a Strength Contribution from Treatment (lbs) when tested using a standard trap tear method ASTM D 5587;

1996 of greater than about 10% and an average improvement in Percent Carbon Black Pick-Up greater than about 10% compared to an untreated wipe.

2. The product according to claim 1 further including a sealed edge along the perimeter of each wipe to prevent loss of material from said wipe during use.

3. The product according to claim 2 further including a saturant.

4. The product according to claim 3, wherein said saturant is chosen from alcohols, water, ketones, hypochlorites, peroxides, biostats, biocides, lubricants, surfactants and mixtures thereof.

5. The product according to claim 2, wherein said plurality of wipes are sterilized.

6. The product according to claim 5, wherein said plurality of wipes are irradiated until substantially sterile.

7. The product according to claim 2, wherein said plurality of wipes are clean room laundered prior to packaging.

8. The product according to claim 1 further including an outer bag surrounding said sealed package, which is adapted to be removed prior to use.

9. The product according to claim 1, wherein said sealed package is resealable.

10. The product according to claim 1, wherein said sealed package is solvent resistant.

11. The product according to claim 1, wherein said sealed package forms a sterile barrier between the environment and said plurality of wipes.

12. The product according to claim 1, wherein said material forming said sealed package is selected from the group consisting of laminates, films, metalized films and combinations thereof.

13. A textile article having a particle capturing finish, said product comprising:

(a) a substrate; and

(b) an ethylene maleic anhydride (EMA) finish applied to said substrate at between about 0.02 wt. % and about 2 wt. % solids on weight of said substrate.

14. The product according to claim 13, wherein said substrate is formed of synthetic yarns.

15. The product according to claim 14, wherein said synthetic yarns are polyester.

16. The product according to claim 14, wherein said synthetic yarns are between about 30 denier and about 200 denier.

17. The product according to claim 16, wherein said synthetic yarns are about 70 denier.

18. The product according to claim 14, wherein said synthetic yarns are texturized.

19. The product according to claim 18, wherein said synthetic yarns are air texturized.

20. The product according to claim 19, wherein said synthetic yarns are air texturized without entanglement.

21. The product according to claim 13, wherein said substrate is between about 40 gms/meter² and about 300 gms/meter².

22. The product according to claim 13, wherein said substrate is formed by circular knitting.

23. The product according to claim 22, wherein said substrate formed by circular knitting is slit prior to packaging.

24. The product according to claim 13, wherein said ethylene maleic anhydride (EMA) finish is topically applied.

25. The product according to claim 24, wherein said topically applied finish is applied by immersion and padding.

26. The product according to claim 13, wherein said ethylene maleic anhydride (EMA) finish is between about 0.1 wt. % and 0.5 wt. % solids on weight of substrate.

27. A supply of clean room wipes, said supply of clean room wipes comprising:

(a) a sealed package;

(b) a plurality of wipes within said sealed package, said wipes including (i) a substrate and (ii) an ethylene maleic anhydride (EMA) finish applied to said substrate at between about 0.02 wt. % and about 2 wt. % solids on weight of substrate, wherein said plurality of wipes having a Strength Contribution from Treatment (lbs) when tested using a standard trap tear method ASTM D 5587;

1996 of greater than about 10% and an average improvement in Percent Carbon Black Pick-Up greater than about 10% compared to an untreated wipe; and

(c) a sealed edge along the perimeter of each wipe to prevent loss of material from said wipe during use.

28. The product according to claim 27 further including a saturant.

29. The product according to claim 28, wherein said saturant is chosen from alcohols, water, ketones, hypochlorites, peroxides, biostats, biocides, lubricants, surfactants and mixtures thereof.

30. The product according to claim 27, wherein said plurality of wipes are sterilized.

31. The product according to claim 30, wherein said plurality of wipes are irradiated until substantially sterile.

32. The product according to claim 27, wherein said plurality of wipes are clean room laundered prior to packaging.

33. The product according to claim 27 further including an outer bag surrounding said sealed package, which is adapted to be removed prior to use.

34. The product according to claim 27, wherein said sealed package is resealable.

35. The product according to claim 27, wherein said sealed package is solvent resistant.

36. The product according to claim 27, wherein said sealed package forms a sterile barrier between the environment and said plurality of wipes.

37. The product according to claim 27, wherein said material forming said sealed package is selected from the group consisting of laminates, films, metalized films and combinations thereof.

38. The product according to claim 27, wherein said substrate is formed of synthetic yarns.

39. The product according to claim 38, wherein said synthetic yarns are polyester.

40. The product according to claim 38, wherein said synthetic yarns are between about 30 denier and about 200 denier.

41. The product according to claim 40, wherein said synthetic yarns are about 70 denier.

42. The product according to claim 38, wherein said synthetic yarns are texturized.

43. The product according to claim 42, wherein said synthetic yarns are air texturized.

44. The product according to claim 43, wherein said synthetic yarns are air texturized without entanglement.

45. The product according to claim 27, wherein said substrate is between about 40 gms/meter² and about 300 gms/meter².

46. The product according to claim 27, wherein said substrate is formed by circular knitting.

47. The product according to claim 46, wherein said substrate formed by circular knitting is slit prior to packaging.

48. The product according to claim 27, wherein said ethylene maleic anhydride (EMA) finish is topically applied.

49. The product according to claim 48, wherein said topically applied finish is applied by immersion and padding.

50. The product according to claim 27, wherein said ethylene maleic anhydride (EMA) finish is between about 0.1 wt. % and 0.5 wt. % solids on weight of substrate.

51. The product according to claim 27, wherein said ethylene maleic anhydride (EMA) finish is a co-polymer.