Protective fabric having high penetration resistance

• US 6,548,430 B1
• Filed: 12/03/1999
• Issued: 04/15/2003
• Est. Priority Date: 08/29/1994
• Status: Expired due to Term

• Current Assignee: Warwick & York Incorporated
• Original Assignee: Warwick & York Incorporated
• Inventors: Howland, Charles A.
• Primary Examiner(s): Morris, Terrel
• Assistant Examiner(s): Guarriello, John J.
• Application Number:
  US09/453,773
• Time in Patent Office: 1,229 Days
• Field of Search: 442/189, 442/208, 428/902, 428/911, 139/383.R, 2/25
• US Class Current: 442/208
• CPC Class Codes: D03D 1/00 Woven fabrics designed to make specified articles
• CPC Class Codes: D03D 1/0041 Cut or abrasion resistant
• CPC Class Codes: D03D 1/0052 Antiballistic fabrics
• CPC Class Codes: D03D 15/283 synthetic polymer-based, e.g. polyamide or polyester fibres cellulose-based artificial fibres D03D15/225
• CPC Class Codes: D03D 15/41 with specific twist
• CPC Class Codes: D03D 3/00 Woven fabrics characterised by their shape
• CPC Class Codes: D10B 2201/02 Cotton
• CPC Class Codes: D10B 2211/02 Wool
• CPC Class Codes: D10B 2321/021 polyethylene
• CPC Class Codes: D10B 2331/021 aromatic polyamides, e.g. aramides
• CPC Class Codes: D10B 2331/04 polyesters, e.g. polyethylene terephthalate [PET]
• CPC Class Codes: D10B 2401/062 stiff, shape retention
• CPC Class Codes: D10B 2401/063 high strength
• CPC Class Codes: D10B 2501/04 Outerwear; Protective garments
• CPC Class Codes: D10B 2501/041 Gloves
• CPC Class Codes: Y10S 428/902 High modulus filament or fiber
• CPC Class Codes: Y10S 428/911 Penetration resistant layer
• CPC Class Codes: Y10T 442/3065 Including strand which is of specific structural definition
• CPC Class Codes: Y10T 442/322 Warp differs from weft
• CPC Class Codes: Y10T 442/3585 Epoxy resin

Abstract

A protective fabric includes a plurality of warp yarns interwoven with a plurality of fill yarns. The denier of each of the warp and fill yarns is less than 500. The yarns are made from at least one of liquid crystal polyesters, para-aramids, and high density polyethylenes.

Claims

1. A protective fabric substrate for protection against puncture penetration and/or ballistics comprising:

a plurality of warp yarns densely interwoven with a plurality of fill yarns in at least a 70×

70 structure;

said warp yarns having interlocking sidewall contact between adjacent said warp yarns at points of shed crossing;

a denier of each of the warp and fill yarns being less than 500;

wherein the yarns are made from at least one of liquid crystal polyesters, para-aramids, and high density polyethylenes.

2. The protective fabric as claimed in claim 1 wherein the denier of each of the warp and fill yarns is approximately 200.

3. The protective fabric as claimed in claim 2 wherein a warp crimp is not equal to a fill crimp.

4. The protective fabric as claimed in claim 2 wherein the yarns are made from para-aramids.

5. The protective fabric as claimed in claim 2, wherein the cross section aspect ratio of warp yarns at shed crossings is about 1.

6. A fabric substrate comprising:

a plurality of warp yarns densely interwoven with a plurality of fill yarns in at least 70×

70 structure;

said warp yarns having interlocking sidewall contact between adjacent said warp yarns at points of shed crossing.

7. A fabric substrate according to claim 6, a denier of each of the warp and fill yarns being less than 500.

8. A fabric substrate according to claim 6, a denier of each of the warp and fill yarns being approximately 200.

9. A fabric substrate according to claim 6, wherein the yarns are made from at least one of liquid crystal polyesters, para-aramids, and high density polyethylenes.

10. A fabric substrate according to claim 6 wherein a warp crimp is not equal to a fill crimp.

11. A fabric substrate according to claim 6 wherein a warp crimp is greater than a fill crimp.

12. A protective fabric substrate for protection against puncture penetration and/or ballistics comprising:

a plurality of warp yarns densely interwoven with a plurality of fill yarns in at least a 70×

70 structure;

said warp yarns having interlocking sidewall contact between adjacent said warp and fill yarns at points of fill crossing;

a denier of each of the warp and fill yarns being less than 500;

wherein the yarns are made from at least one of liquid crystal polyesters, para-aramids, and high density polyethylenes.

13. The protective fabric, as claimed in claim 12 wherein the denier of each of the warp and fill yarns is approximately 200.

14. The protective fabric as claimed in claim 13 wherein a warp crimp is not equal to a fill crimp.

15. The protective fabric as claimed in claim 13 wherein the yarns are made from para-aramids.