Method for antimicrobial treatment of fiber, process for production of antimicrobial fiber, and antimicrobial fiber

A treatment method and antibacterial technology, which are used in the antibacterial treatment of fibers, the manufacture of antibacterial fibers and the fields of antibacterial fibers, can solve the problems of reduced cost advantage, increased cost, and reduced product feel, and achieve excellent washing resistance. , Easy to adjust, the effect of the change control of the feel

Inactive Publication Date: 2010-11-24
OSAKA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, increasing the amount of the antimicrobial agent or using a resin binder leads to an increase in cost, a reduction in the cost advantage over the blending method, and a reduction in processability and texture of the product during post-processing.

Method used

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  • Method for antimicrobial treatment of fiber, process for production of antimicrobial fiber, and antimicrobial fiber
  • Method for antimicrobial treatment of fiber, process for production of antimicrobial fiber, and antimicrobial fiber
  • Method for antimicrobial treatment of fiber, process for production of antimicrobial fiber, and antimicrobial fiber

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1 and comparative example 1

[0057] In Example 1 and Comparative Example 1, antibacterial treatment was performed using silver as a noble metal, and the obtained antibacterial performance was compared with a cloth made of commercially available antibacterial silver fibers.

Embodiment 1

[0059] (1) Preparation of antibacterial fiber samples

[0060] Silver nitrate was added to 800 mL of water, and the resulting silver nitrate aqueous solution with a concentration of 0.1 mM was put into a 1 L plastic bottle, and 8 mL of 2-propanol was added to promote the reduction reaction of silver ions. In the obtained aqueous solution, 8.6 mg of silver existed as ions.

[0061] A commercially available cotton cloth (50 cm×50 cm) was immersed in the obtained aqueous solution, the plastic bottle was sealed, and cobalt 60 gamma rays were irradiated under the following conditions using a cobalt 60 gamma ray irradiation device while stirring.

[0062] Radiation source: cobalt 60 gamma ray source (energy of gamma ray photon: 1.25MeV)

[0063] Ray source intensity: about 7000 Curies

[0064] Dose rate: 3kGy / h

[0065] Irradiation time: 2 hours

[0066] Then, the cotton cloth was taken out from the plastic bottle, washed with water, and dried to obtain the antibacterial fiber s...

Embodiment 2～5

[0079] In the following examples, silver ions were used as noble metal ions to test the relationship between concentration and antibacterial properties.

[0080] (1) Production of samples

[0081] Silver nitrate was added to 1 L of water, silver nitrate aqueous solutions of various concentrations shown in Table 2 were charged into the container, and 1 vol% of 2-propanol was added to promote the reduction reaction of silver ions.

[0082] A commercially available cotton cloth (50 cm x 50 cm) was immersed in the obtained aqueous solution, the container was sealed, and the same cobalt 60 gamma ray irradiation device as in Example 1 was used to irradiate cobalt 60 gamma rays with an absorbed dose of 10 kGy (10000 J / kg). In addition, stirring of the aqueous solution was not performed at the time of irradiation. Then, the cotton cloth was taken out from the container, washed with water, and dried to obtain each sample of Examples 2 to 5 in which silver nanoparticles adhered to the ...

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PUM

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Abstract

Disclosed are a method for the antimicrobial treatment of a fiber and a process for the production of an antimicrobial fiber, each of which is characterized by immersing the fiber in an aqueous solution containing a noble metal ion or a noble metal complex and irradiating the aqueous solution with gamma-ray or electron beam. In the method for the antimicrobial treatment of a fiber and the processfor the production of an antimicrobial fiber, the noble metal constituting the noble metal ion or the noble metal complex is at least one noble metal selected from the group consisting of gold, silver, platinum, palladium, ruthenium, rhodium, iridium and rhenium. Also disclosed is an antimicrobial fiber produced by the process.

Description

technical field [0001] The present invention relates to an antibacterial treatment method for fibers, a method for producing antibacterial fibers and antibacterial fibers. Specifically, it relates to an antimicrobial treatment method for fibers capable of firmly attaching antimicrobial metal fine particles, a method for producing antimicrobial fibers, and antimicrobial fibers produced by the above production methods. Background technique [0002] In recent years, the loss of drug-resistant bacteria such as MRSA caused by the large-scale use of antibiotics has become a problem, and the inorganic fungicide-antibacterial agent has gradually been re-examined. The main reason is that metals such as silver or metal oxides such as titanium oxide may not show strong bactericidal effect, but they will not produce antibacterial properties, are harmless to the human body, and have continuous antibacterial effects against broad-spectrum bacteria-mold, etc. -Anti-mildew effect. [0003...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M10/00A61L2/16
CPCD06M23/08D06M11/49A61L2/238D06M11/42D06M11/83D06M10/008
Inventor 清野智史井手正人上田裕之氏家一胜廉林笃
Owner OSAKA UNIV
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