Manufacturing methods and applications of antimicrobial plant fibers having silver particles

A plant fiber, antibacterial activity technology, applied in the field of patient cloth, can solve the problems of harming the user, easy to break, etc.

Inactive Publication Date: 2007-12-05
ANSON NANOTECH GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Also, the extra thin metallic yarns tend to break, making repeated laundering of this cloth problematic
The cloth also injures the user due to broken metal yarns

Method used

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  • Manufacturing methods and applications of antimicrobial plant fibers having silver particles
  • Manufacturing methods and applications of antimicrobial plant fibers having silver particles

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] Small-scale production of antimicrobial yarn

[0049] (1) Preparation of silver-containing solution

[0050] (a) Silver nitrate solution:

[0051] AgNO 3 3.9g

[0052]

[0053] Dissolve in 150ml water

[0054] (b) Silver-containing solutions:

[0055] A silver-containing solution was prepared by diluting the silver nitrate solution with additional water to a volume of 250 ml.

[0056] (2) Production of antibacterial yarn

[0057] Antibacterial yarns are produced as follows:

[0058] (a) Natural white degreased yarn (10 g) was immersed in the silver-containing solution of (1). The yarn is squeezed and tumbled in the solution so that the yarn completely absorbs the treatment solution.

[0059] (b) The silver-containing solution is partially removed by centrifugation (for example in a washing machine), dried in an oven at 120 to 160°C.

[0060] (c) washing the dried yarn with water, and drying in an oven again to obtain the o...

Embodiment 2

[0062] Production of antimicrobial yarns on an industrial scale

[0063] (1) Preparation of silver-containing solution

[0064] (a) Silver nitrate solution:

[0065] AgNO 3 5.5g

[0066]

[0067] Dissolve in 200L water

[0068] In a 500-liter container, 5.5 kg of silver nitrate was dissolved in 200 L of water at room temperature, thereby preparing an aqueous solution of silver nitrate.

[0069] (b) Silver-containing solutions:

[0070] Prepare a silver-containing solution by mixing the silver nitrate solution with additional water. Additional water was added to the mixture to bring the volume to 500 L.

[0071] (2) Production of antibacterial yarn

[0072] Antibacterial yarns are produced as follows:

[0073] (a) Natural white degreased yarn (200 g) was immersed in the silver-containing solution of (1). The yarn was squeezed and tumbled in the solution so that the yarn completely absorbed the silver solution.

[0074] The silver-cont...

Embodiment 3

[0077] Electron Microscopic Study of Antibacterial Yarn

[0078] (1. Purpose

[0079] For the yarn prepared according to the method described in Example 1, the size and distribution of the attached nano-silver particles were analyzed.

[0080] (2) Method

[0081] According to the method described in JY / T011-1996 Transmission Electron Microscopy Handbook, the 5 antibacterial yarn samples prepared in Example 1 (before) were studied. A JEM-100CXII transmission electron microscope was used with an accelerating voltage of 80KV and a resolution of 0.34nm.

[0082] (3) Results

[0083]Six batches of antimicrobial yarn samples containing nanosilver particles evenly distributed on the yarn were studied. Lot No. 010110 contained about 62% nanosilver particles with a size of less than 10 nm, about 36% nanosilver particles with a size of about 10 nm, and about 2% nanosilver particles with a size of 15 nm. Lot No. 001226 contained about 46% nanosilver particles having a size of less...

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Abstract

The present invention also provides a method for making the antimicrobial plant fibers. The characteristic of the method is no need of additional reducing agent. The present invention provides plant fibers with antimicrobial effects. The antimicrobial antifungal effect of the fibers is derived from nanosilver particles (diameter between 1 and 100 nm) which are attached to the fibers. The fibers which are made of cotton, linen, blending fibers, or any combination thereof. The fibers can be used to make yarn cloth to be used particularly for treating patients with burns or wound. The cloth made from the antimicrobial fibers 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.

Description

technical field [0001] The present invention relates to methods of making and using antimicrobial fibers for healthcare and medical applications. The present invention relates to an antibacterial fiber, which is made of plant fibers and contains preferably about 0.1% to 1.5% by weight of nano silver particles (1 nm to 100 nm in diameter) attached thereto. Nanosilver contents outside the above range may also provide satisfactory results. The preparation of the nano-silver particles does not require the use of additional reducing agents. Antimicrobial fibers are preferably used in the production of cloths, especially cloths for treating patients suffering from burns or wounds. The cloth can be used in the production of clothing such as underwear, socks, insoles, shoe liners, bed sheets, pillowcases, towels, feminine hygiene products, lab coats and doctor gowns. Background technique [0002] Metals, including silver, copper, mercury and zinc, are known to have antimicrobial ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M11/58D02G3/04
CPCD02G3/449D06M11/58D06M23/08D21C9/004D06M11/64A01N59/16D06M16/00A61L2/238D21C5/005D06M11/83D21H11/20D21H21/36A61P31/04A61P31/10A01N25/34A01N2300/00
Inventor 程家宠严季雄
Owner ANSON NANOTECH GRP
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