Wallpaper with deodorizing function and method of maunfacturing of the wallpaper

A technology for air purification and wallpaper, applied in chemical instruments and methods, organic compound/hydride/coordination complex catalysts, paper, etc., can solve the problems of surface aging, restricted use, hindering diversification and expanding applications, etc.

Active Publication Date: 2010-08-18

LG HAUSYS LTD

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AI-Extracted Technical Summary

Problems solved by technology

This reaction may lead to surface aging

In addition, UV-sensitive photocatalysts can be activated even when irrad...

Method used

[0038] In this step, the air-purifying wallpaper is prepared by coating the visible light active photocatalyst on the surface of the wallpaper. The coating step may be carried out according to any suitable coating method known in the art. Particular preference is given to the spraying method. Photocatalyst-coated wallpapers are produced accordi...

Abstract

The invention provides a wallpaper with the deodorizing function. The wallpaper comprises a base layer, a printing layer and an air cleaning coating formed in order from the bottom. The air cleaning coating is formed by coating a photocatalyst activated by the visible light. The photocatalyst contains a solvent, a titanium compound, a chelating agent, a metallic compound and an acidic catalyst. The invention also provides a method for manufacturing the wallpaper with the deodorizing function. Even in the presence of a low-energy light source such as an indoor filament lamp, a fluorescent lampand a light-emitting diode (LED) lamp, the wallpaper with the deodorizing function still continuously exhibits enough photocatalysis activity. Therefore, the wallpaper with the deodorizing function can be used in various occasions, including the place where no enough effect is achieved by the conventional wallpaper coated with the photocatalyst. In addition, the wallpaper with the deodorizing function can be used for a long term with no damage on the appearance of the base wallpaper.

Application Domain

Covering/liningsSpecial paper +5

Technology Topic

SolventAir cleaning +11

Image

Examples

Experimental program(1)
Comparison scheme(1)
Effect test(3)

Example Embodiment

[0044] Example 1

[0045] 142 g of titanium tetraisopropoxide, 72 g of isopropanol and 10 g of acetylacetone were reacted in the first reactor at room temperature for 30 minutes. 1.4 g of iron nitrate, 2.6 g of zinc nitrate and 1.8 g of copper nitrate were completely dissolved in 760 g of distilled water in a second reactor at 400 rpm. After the reaction mixture of the first reactor was slowly added to the aqueous solution of the second reactor, 1.6 g of nitric acid was added dropwise thereto. The resulting mixture was heated to 80°C and allowed to react for 3 hours. The reaction mixture was reacted with 7.6 g of triethyl orthosilicate for 1 hour. The reaction resulted in a transparent visible-light active titanium dioxide photocatalyst.

[0046] The photocatalyst was sprayed at 1-20 g/m 2 The amount is coated on the surface of the wallpaper.

PUM

Description & Claims & Application Information

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