Cut resistant antimicrobial yarn and apparel

• US 6,260,344 B1
• Filed: 07/07/1999
• Issued: 07/17/2001
• Est. Priority Date: 01/08/1998
• Status: Expired due to Term

• Current Assignee: Wells Lamont Corporation (Berkshire Hathaway Incorporated)
• Original Assignee: Whizard Protective Wear Corp.
• Inventors: Chakravarti, Kalidas
• Primary Examiner(s): Calvert, John J.
• Assistant Examiner(s): Welch, Gary L.
• Application Number:
  US09/349,267
• Time in Patent Office: 741 Days
• Field of Search: 572/10, 572/30, 2/25, 216/7, 442/203, 428/222, 424/404, 424/409
• US Class Current: 57/230
• CPC Class Codes: A41D 31/24 Resistant to mechanical stress, e.g. pierce-proof aprons resistant to mechanical aggressions A41D13/043
• CPC Class Codes: D02G 3/12 Threads containing metallic filaments or strips
• CPC Class Codes: D02G 3/38 Threads in which fibres, filaments, or yarns are wound with other yarns or filaments, e.g. wrap yarns, i.e. strands of filaments or staple fibres are wrapped by a helically wound binder yarn; D02G3/32 takes precedence; covering endless core threads with fibres by using open-end spinning techniques D01H4/00
• CPC Class Codes: D02G 3/442 Cut or abrasion resistant yarns or threads
• CPC Class Codes: D02G 3/449 Yarns or threads with antibacterial properties filaments containing agents inhibiting growth of microorganisms D01F1/103
• CPC Class Codes: D04B 1/28 gloves

Abstract

A knittable cut resistant yarn for use in protective wear, such as gloves, arm protectors, aprons, or the like, including a core with at least one strand of flexible material selected from the group consisting of stainless steel wire and poly-paraphenylene terephthalamide. The core is wrapped with at least one strand of an antimicrobial treated acrylic fiber. A first wrap is wound in one direction about the core having a denier in the range of about 75 to about 600. Each additional wrap is wound about the core in a different direction. The antimicrobial treated acrylic fiber contains the antimicrobial agent 5-chloro-2-(2,4-dichlorophenoxy)phenol.

Claims

1. A knittable cut-resistant yarn for use in protective wear, such as gloves, arm protectors, and aprons, comprising:

a) a core having at least one strand of flexible material selected from the group consisting of a stainless steel, a fiberglass and a poly-paraphenylene terephthalamide;

b) a first wrap wound in one direction about the core comprising a strand of an anti-microbial treated acrylic fiber, said first wrap having a denier in a range of about 75 to about 600; and

,

c) at least one additional wrap wherein each said additional wrap is wound in a different direction about said core having a denier in the range of about 75 to about 600.

2. The yarn of claim 1, wherein said stainless steel material has a diameter of about 0.002 inches.

3. The yarn of claim 2, wherein each said additional wrap has a denier of substantially 300.

4. The yarn of claim 1, wherein said poly-paraphenylene terephthalamide material has a denier in a range of about 200 to 600.

5. The yarn of claim 1, wherein said first wrap has a denier of substantially 300.

6. The yarn of claim 1, wherein said first wrap and said additional wraps are wrapped at a rate of 7-12 wraps per inch about said core.

7. The yarn of claim 1, wherein said anti-microbial treated acrylic fiber contains 5 chloro-2-(2,4 dichlorophenoxy)phenol.

8. The yarn of claim 1, wherein said core further comprises at least one fiberglass fiber.

9. The yarn of claim 8, wherein said fiberglass fiber has a denier in a range of about 75 to about 500.

10. The yarn of claim 1, wherein the said additional wrap is selected from the group consisting of a high density polyethylene and a polyester having a denier in the range of 75 to 600.

11. The yarn of claim 10, wherein said additional wrap has a denier in the range of 200 to 400.

12. The yarn of claim 1, wherein said core is from about 20 to 50% by weight of the total yarn.

13. The yarn of claim 1, wherein said core is about 40 percent by weight of the total yarn.

14. A cut-resistant knittable yarn for making fabric adapted to be used with protective wear, such as gloves, arm protectors, and aprons, comprising:

a) a core including at least two longitudinally extending synthetic fibers;

b) at least one inner wrap wound around said core made from a synthetic fiber;

c) an outer wrap wound around said at least one inner wrap; and

d) an inner fiber comprising an anti-microbial treated acrylic fiber.

15. The yarn of claim 14, wherein said acrylic fiber contains an anti-microbial agent forming part of the matrix of the polymer.

16. The yarn of claim 15 wherein said antimicrobial is 5-chloro-2-(2,4-dichlorophenoxy)phenol.

17. A knittable cut-resistant yarn for use in protective wear, such as gloves, arm protectors, and aprons, comprising:

a) a core having at least one strand of flexible material selected from the group consisting of a stainless steel, a fiberglass and a poly-paraphenylene terephthalamide;

b) a plurality of inner wraps wound about the core, wherein said inner wraps are wound in a different direction than the previous inner wrap and at least one of said inner wraps comprises an anti-microbial treated acrylic fiber having a denier in a range of about 75 to about 600; and

,

c) an outer wrap around said plurality of inner wraps.

18. The yarn of claim 17, wherein said core further comprises at least one fiberglass fiber.

19. A knittable cut-resistant yarn for use in protective wear, such as gloves, arm protectors, and aprons, comprising:

a) a core having at least one strand of flexible material selected from the group consisting of a stainless steel, a fiberglass and a poly-paraphenylene terephthalamide;

b) a first wrap wound about the core comprising a strand of an anti-microbial treated acrylic fiber, said first wrap having a denier in a range of about 75 to about 600; and

,

c) at least one additional wrap wound about said core having a denier in the range of about 75 to about 600.

20. The knittable cut-resistant yarn of claim 19 wherein said additional wrap is wound about the core in a different direction from said first wrap.