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Sanitary ware

A kind of pottery and sanitation technology, which is applied in the field of sanitary pottery and can solve the problems of easily damaged photocatalyst layer

Active Publication Date: 2013-12-04
TOTO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Furthermore, although the cleaning frequency of sanitary pottery is reduced by setting a photocatalyst layer, the cleaning is to rub the surface with a brush, etc., so it is easy to damage the photocatalyst layer. Therefore, the photocatalyst layer on the surface of sanitary pottery must have high wear resistance.

Method used

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Examples

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Embodiment

[0037] Although the present invention will be specifically described based on the following examples, the present invention is not limited to these examples.

[0038] In addition, since the evaluation of the durability (water resistance) of the photocatalyst layer formed on the surface of sanitary ware to water showed approximately the same tendency as the test for alkali resistance, the following alkali resistance test was used in this example to evaluate.

[0039] Preparation of coating solution for forming photocatalyst layer

[0040] Titanium alkoxide (titanium diisopropoxide bis(acetylacetonate), NDH-510C, manufactured by Nippon Soda Co., Ltd.) and zirconium alkoxide (tributoxyzirconium monoacetylacetonate, Orgatix ZC -540, manufactured by Japan Matsumoto Fine Chemical Co., Ltd.) can be mixed so that the weight ratio of the solid content after firing can be in the ratio shown in the following table. Next, this mixture was diluted with a mixed solvent of 2-propanol (80...

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Abstract

Disclosed is a sanitary ware provided with a photocatalyst layer having high water resistance and abrasion resistance with good photocatalytic activity maintained. The sanitary ware has a glaze layer and the photocatalyst layer on the same, wherein the photocatalyst layer is an oxide film obtained by firing a precursor of titanium oxide and a precursor of zirconium oxide and contains 65 to 90% by mass of titanium oxide and 10 to 35% by mass of zirconium oxide.

Description

[0001] related application [0002] This application claims the priority of Japanese Patent Application No. 2011-74621 for which it applied on March 30, 2011, and makes a part of this application disclosure by referring the specification of this Japanese application. technical field [0003] The present invention relates to sanitary pottery such as a toilet, urinal, washbasin, washbasin, etc., and more specifically relates to a sanitary pottery having a photocatalyst layer with excellent water resistance and abrasion resistance on its surface. Background technique [0004] Sanitary pottery such as toilets are known. On the surface of the sanitary pottery, for example, a photocatalyst surface layer is formed on the basin surface of the toilet, and the hydrophilicity exhibited by irradiating ultraviolet rays to the photocatalyst layer is used to suppress the adhesion of dirt, thereby improving the washing performance. Such sanitary ware has the advantage of suppressing the adh...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B41/87A47K1/04B01J35/02C04B41/86C04B41/89E03D9/00E03D11/02E03D13/00B01J35/00
CPCC04B2111/00827E03D11/13E03C1/18C04B41/009B01J35/004B01J21/063C04B41/52B01J21/066C04B41/89E03D11/02E03C1/14Y10T428/265Y10T428/1317B01J35/39C04B33/00C04B41/5022C04B41/4537C04B41/5041C04B41/5042C04B41/87A47K1/04B01J35/00C04B41/46
Inventor 八木晋一日野隆博一木智康雨森博彰高野聪士德留弘优
Owner TOTO LTD
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