Functional fiber having photocatalyst activity and fiber structure containing the same

A technology of functional fibers and photocatalysts, applied in the field of antifouling fiber structures and deodorizing fiber structures, can solve the problems of the processing stage, the difficulty of the spinning processability of porous fibers and other problems, and achieve the goal of inhibiting adhesion, Excellent workability

Inactive Publication Date: 2007-03-14
JAPAN EXLAN CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since porous fibers have difficulties in spinning processability (static electricity generation), dyeability (colorability), etc., there are problems in the processing stage.
As mentioned above, the conventional antifouling fiber structure has problems in terms of durability of the antifouling function, function of fibers constituting the fiber structure, influence on physical properties, processability, etc.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment A1

[0094]Spinning dope (AI) containing acrylonitrile copolymer containing acrylonitrile, methyl acrylate, and sodium methallyl sulfonate with an acrylonitrile content of 90% by weight and acrylonitrile, methyl acrylate, Allyl sodium sulfonate has an acrylonitrile content of 88% by weight and a spinning stock solution (AII) containing an acrylonitrile copolymer and titanium oxide particles (TK522 manufactured by Teika Co., Ltd.) with an average primary particle diameter of 15 nm at a ratio of 1:1. Proportionally supply ISG Mixer (theoretical stock solution layer number is 432) for multilayer mixing to make wet spinning yarn. Here, a sodium thiocyanate aqueous solution was used as a solvent for the acrylonitrile-based copolymer. In addition, titanium oxide fine particles were adjusted to be 5% by weight relative to 100 parts by weight of the acrylonitrile polymer in the spinning stock solution (AII).

[0095] As the coagulation liquid, a 12% by weight aqueous solution of sodium th...

Embodiment A2

[0110] A functional fiber for evaluation was obtained in the same manner as in Example A1 except that sodium thiocyanate at a concentration of 12% by weight at 5° C. was used as the coagulation solution.

Embodiment A3

[0112] A functional fiber for evaluation was obtained in the same manner as in Example A1, except that titanium oxide microparticles (Titanium Oxide AMT100 manufactured by Teika Co., Ltd.) with an average primary particle diameter of 5 nm was used instead of titanium oxide TK522 manufactured by Teika Co., Ltd. used in Example A1. .

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Abstract

PROBLEM TO BE SOLVED: To provide a functional fiber sufficiently utilizing photocatalyst functions of a metal oxide having a photocatalyst activity and having various functions such as deodorizing, antimicrobial, mildewproofing and anti-staining properties. SOLUTION: The functional fiber is characterized as follows. The fiber has a multilayer structure comprising porous layers and dense layers alternately arranged and metal oxide fine particles having the photocatalyst activity are contained in the dense layers. The pore surface area of the fiber is preferably within the range of 10-40 m<SP>2< / SP> / g and the metal oxide fine particles are preferably titanium oxide. The particle diameter of the metal oxide fine particles is preferably 10-100 nm. COPYRIGHT: (C)2006,JPO&NCIPI

Description

technical field [0001] The present invention relates to functional fibers that can fully utilize photocatalyst activity and have various functions such as the performance of removing volatile organic compounds, deodorization, antibacterial and antifungal properties, and antifouling properties. In addition, the present invention relates to a volatile organic compound-removing fiber structure capable of removing volatile organic compounds, a deodorizing fiber structure that absorbs and decomposes malodorous components, and an antifouling fiber structure using such functional fibers. Background technique [0002] In recent years, metal compounds having photocatalytic activity, such as titanium oxide, have attracted attention, and their applications to various uses such as deodorization, antibacterial, antifungal, and antifouling have been proposed. A fiber product obtained by including a metal compound having such photocatalytic activity has also been proposed. However, the cu...

Claims

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Application Information

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IPC IPC(8): D01F8/04D01F8/08
CPCY02A50/20
Inventor 渡边义弘田中孝一
Owner JAPAN EXLAN CO LTD
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