U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Antimicrobial yarn having nanosilver particles and methods for manufacturing the same

Patent 6979491 Issued on December 27, 2005. Estimated Expiration Date: Icon_subject March 27, 2022. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

Particle-packed fiber article having antibacterial property
Patent #: 4525410
Issued on: 06/25/1985
Inventor: Hagiwara ,   et al.

Process for producing an antibacterial fiber article
Patent #: 5064599
Issued on: 11/12/1991
Inventor: Ando, et al.

Dyed synthetic fiber comprising silver-substituted zeolite and copper compound, and process for preparing same
Patent #: 5180402
Issued on: 01/19/1993
Inventor: Kubota, et al.

Antibacterial fiber, textile and water-treating element using the fiber and method of producing the same
Patent #: 5496860
Issued on: 03/05/1996
Inventor: Matsumoto, et al.

Antibacterial fiber, textile and water-treating element using the fiber and method of producing the same
Patent #: 5561167
Issued on: 10/01/1996
Inventor: Matsumoto, et al.

Fine metallic particles-containing fibers and method for producing the same
Patent #: 5897673
Issued on: 04/27/1999
Inventor: Nishida, et al.

Antibacterial cellulose fiber and production process thereof
Patent #: 5985301
Issued on: 11/16/1999
Inventor: Nakamura, et al.

Food wrapping cloth
Patent #: 6274519
Issued on: 08/14/2001
Inventor: Omori, et al.

Nanosilver-containing antibacterial and antifungal granules and methods for preparing and using the same
Patent #: 6379712
Issued on: 04/30/2002
Inventor: Yan, et al.

Nanoparticle-based permanent treatments for textiles Patent #: 6607994
Issued on: 08/19/2003
Inventor: Soane, et al.

Inventors

Assignee

Application

No. 10106033 filed on 03/27/2002

US Classes:

428/361, With coating or impregnation57/232, Coated or impregnated424/403, Insect repellent or mothproofed424/404, Antifungal or antibacterial424/405, Biocides; animal or insect repellents or attractants (e.g., disinfectants, pesticides, etc.)424/402, Wearing apparel, fabric, or cloth424/1.29, Coated, impregnated, or colloidal particulate (e.g., microcapsule, micro-sphere, micro-aggregate, macro-aggregate)106/1.13, Elemental metal is Group IB (Cu, Ag, Au)106/1.14, Elemental metal is Ag106/1.18, Metal-depositing composition contains elemental metal of Group IB (Cu, Ag, Au)106/1.19, Elemental metal is Ag106/2, Coating repellent428/365, Including textile, cloth or fabric428/907, RESISTANT AGAINST PLANT OR ANIMAL ATTACK442/123, Coating or impregnation functions biologically (e.g., insect repellent, antiseptic, insecticide, bactericide, etc.)442/124, Inhibits mildew442/59COATED OR IMPREGNATED WOVEN, KNIT, OR NONWOVEN FABRIC WHICH IS NOT (A) ASSOCIATED WITH ANOTHER PREFORMED LAYER OR FIBER LAYER OR, (B) WITH RESPECT TO WOVEN AND KNIT, CHARACTERIZED, RESPECTIVELY, BY A PARTICULAR OR DIFFERENTIAL WEAVE OR KNIT, WHEREIN THE COATING OR IMPREGNATION IS NEITHER A FOAMED MATERIAL NOR A FREE METAL OR ALLOY LAYER

Examiners

Primary: Singh, Arti R.

Attorney, Agent or Firm

Foreign Patent References

  • 1034090 CN 02/01/1997
  • 1291666 CN 04/01/2001
  • 1291667 CN 04/01/2001
  • 2108030 FR 12/01/1972
  • 2003-136649 JP 05/01/2003
  • 2001-0091023 KR 10/01/2001

International Class

D02G003/00

Abstract

The present invention provides a yarn with antimicrobial effects. The antimicrobial antifungal effect of the yarn is derived from nanosilver particles (diameter between 1 and 100 nm) which are adhered to the yarn. The yarn contains fibers which are made of cotton, linen, silk, wool, leather, blending fabric, synthetic fiber, or any combination thereof. The yarn can be used to make cloth to be used particularly for treating patients with burns or wound. The cloth made from the antimicrobial yarn can be further used to make clothes such as underwears, socks, shoe cushions, shoe linings, bed sheets, pillow cases, towels, women hygiene products, laboratory coats, and medical robes. The present invention also provides a method for making the antimicrobial yarn.

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