CUT RESISTANT COMPOSITE YARN

• US 20120060563A1
• Filed: 02/09/2010
• Published: 03/15/2012
• Est. Priority Date: 02/09/2009
• Status: Active Grant

• Current Assignee: Avient Protective Materials BV (Avient Corp.)
• Original Assignee: DSM IP Assets BV (DSM-Firmenich AG)
• Inventors: Henssen, Giovanni Joseph Ida
• Granted Patent: US 8,806,902 B2
• Time in Patent Office: Days
• US Class Current: 66/174
• CPC Class Codes: A41D 19/01505 resistant to mechanical aggressions, e.g. cutting. piercing
• CPC Class Codes: D02G 3/32 Elastic yarns or threads ; Production of plied or cored yarns, one of which is elastic
• CPC Class Codes: D02G 3/442 Cut or abrasion resistant yarns or threads
• CPC Class Codes: D04B 1/18 elastic threads
• CPC Class Codes: D04B 1/28 gloves

Abstract

The invention relates to a cut resistant composite yarn comprising: a) at least one yarn containing filaments and/or staple fibers, said filaments and/or staple fibers containing a hard component, said hard component being a plurality of hard fibers, said hard fibers having an average diameter of at most (25) microns; and b) at least one continuous elastic filament. The invention further relates to a fabric and articles comprising the yarn, in particular a glove.

Claims

1. Cut resistant composite yarn comprising:

a) at least one first yarn containing polymeric filaments and/or staple polymeric fibers, said filaments and/or staple fibers containing a hard component, said hard component being a plurality of hard fibers, said hard fibers having an average diameter of at most 25 microns; and

b) at least one continuous elastic filament.

2. The yarn of claim 1 further comprising at least one yarn containing filaments and/or staple fibers of polyester and/or nylon.

3. The yarn of claim 1 further comprising at least one yarn containing melt spun filaments and/or staple fibers of polyethylene

4. The yarn of claim 1 further comprising at least one yarn containing gel spun filaments and/or staple fibers of ultrahigh molecular weight polyethylene.

5. The yarn of claim 1 wherein the first yarn has a titer of between 100 and 400 dtex.

6. The yarn of claim 1 wherein the elastic filament has in the relaxed state a linear density between 8 and 220 dtex.

7. The yarn of claim 1 wherein the elastic filament is manufactured from a long chain synthetic polymer comprising segmented polyurethane.

8. The yarn of claim 1 having a titer of between 100 and 10.000 dtex.

9. A lightweight, cut resistant fabric comprising the yarn of claim 1.

10. The fabric of claim 9, said fabric having a cut resistance as measured by ASTM F 1790-97 above 500 g and an areal density of at most 400 g/m².

11. The fabric of claim 9 wherein said fabric is manufactured on an at least 15 gauge knitting machine.

12. The fabric of claim 11 where the knitting machine was at least 18 gauge

13. A glove comprising the fabric of claim 9.

14. The glove of claim 13, the surface of which being at least partially coated with a polyurethane based elastomer.