JP2005212489A - Manufacturing method of article having pattern-like anti-fogging effect - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a manufacturing method of an article having an anti-fogging effect in the shape of a pattern, which can give a high design quality, by utilizing changes in temperature and humidity, for a transparent article whose inside can be seen through, such as glass and a transparent plastic used for a window and show window, a show case and a glass tumbler or for a reflexive article having a high surface brightness such as a mirror. <P>SOLUTION: The manufacturing method of the article having the anti-fogging effect in the shape of a pattern comprises pasting in the shape of a pattern a film having an anti-fogging effect on a surface of the transparent article through which the light passes or the reflexive article on which the light reflects. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

The present invention relates to a method of manufacturing an article having an antifogging effect in a pattern, and more specifically, a transparent article or mirror that can be seen through the inside of glass, transparent plastic, showcases, glass cups, and the like used for windows and show windows. The present invention also relates to a method for manufacturing an article having an antifogging effect in a pattern that can impart high designability to a reflective article having a high surface luminance by utilizing changes in temperature and humidity.

In humid environments or environments with large temperature differences, items such as windows, show windows, and showcases that require transparency, and mirrors that require reflectivity may become cloudy due to condensation, making it impossible to see through the interior. Since the video cannot be confirmed, various anti-fogging means have been conventionally taken.

As described above, in these transparent articles or reflective articles, the transparency or reflectivity of the articles is often the basic performance of these articles themselves, and transmitted light due to condensation of water vapor in the air is often present. The occurrence of diffuse reflection, i.e., cloudiness, is often a major drawback in these articles.

As a general means for preventing these fogging, for example, a method of passing a weak current through these transparent articles to heat them to prevent fogging, a heating element is arranged in the vicinity of the transparent articles, and the heat There are a method for preventing fogging, a method for forcibly creating an air flow in the vicinity of the surface of the transparent article to prevent fogging, or a method using these in combination. In any of the above methods, it is necessary to make these articles in a structure suitable for anti-fogging in advance, which is generally expensive.

Furthermore, the method of heating by passing a weak current through these transparent articles, etc., and the method of heating from the vicinity using a heating element pay special attention to prevent leakage, and have a safe structure. It is not an economical method because it needs to be adopted and the running cost is high.

On the other hand, as a simple method, a paint having an anti-fogging effect is applied by spray coating (for example, product name “Mokudashi Spray” manufactured by RP Topura Co., Ltd.) or the like, or a film having anti-fogging properties is applied to these articles. Although the method of sticking is also taken, all of these methods have a short life of the anti-fogging effect, and the application range is extremely limited.

In addition, a method of preventing fogging by directly applying an antifogging paint to the surface of the article is also employed. As a method for producing these antifogging films and antifogging articles, for example, in Patent Document 1, hydrophilic polyvinyl alcohol is cross-linked with a cross-linking agent such as a silane coupling agent to improve water resistance and surface hardness. An antifogging film capable of imparting excellent adhesiveness is disclosed, and Patent Document 2 discloses an antifogging article obtained by adding a surfactant to a polyol-modified melamine resin having a relatively hydrophilic property.

However, any of the above methods exhibits an antifogging effect over the entire surface of the transparent article or the reflective article. In other words, it is a technology based on the recognition that fogging due to condensation only lowers the performance of an article, and actively uses the fogging caused by condensation to further improve the design of the article. There is no intention to do.
Japanese Patent Laid-Open No. 3-181586 JP 56-159231 A

The present invention has been made in view of the above facts, and the object of the present invention is to provide a pattern with a high design property in which patterns such as letters and designs are lifted by positively using cloudiness caused by condensation. Another object of the present invention is to provide a method for producing an article having an antifogging effect.

The present invention is a method for producing an article having an antifogging effect in a pattern in which a film having antifogging properties is pasted on the surface of a transparent article that transmits light or a reflective article that reflects light.
The present invention is described in detail below.

The transparent article through which the light passes is not particularly limited, and for example, a window glass, a light such as a partition, or the like that can be seen through the article, a frozen showcase, a cup, Those that see through the built-in items such as bottles, forehead, and packaging materials, those that use transmitted light itself such as transparency sheets, etc., the material is glass, other light-transmitting inorganic materials, plastics, Other materials that can transmit visible light, such as a light-transmitting organic material, can be used. Here, the visible light does not need to be all visible light, and may be a part of which visible light can be transmitted.

The reflective article that reflects the light is not particularly limited. For example, a typical example is a mirror, but other polished and glossy metals, glass, metal-deposited plastics, and the like are caused by condensation. The thing which can confirm the presence of cloudiness visually is mentioned.

The pattern refers to characters, designs and the like for display and decoration effects.

The antifogging film is not particularly limited. For example, a hydrophilic cellulose film such as cellophane, a synthetic resin such as polyethylene, polypropylene, vinyl chloride resin, and polyethylene terephthalate is used with a surfactant. Examples thereof include an added film and a film obtained by applying a coating-type antifogging agent to the synthetic resin film. Those commercially available as films having anti-fogging properties include, for example, products manufactured by Dai Nippon Printing Co., Ltd., trade names “Mirampa”, RP Topura Co., Ltd., trade names “Kumadai Film”, products manufactured by Sony Chemical Co., Ltd. Name “Bordon Film”, manufactured by Riken Vinyl Industry Co., Ltd., trade name “RIVEX-AF”, manufactured by Nippon Sheet Glass Co., Ltd., trade name “Pelcoat AF”, manufactured by FILM SPECIALITIES, trade name “VISTEX”, and the like.

The means for cutting the film having antifogging properties into a pattern is not particularly limited. For example, a cutting machine that cuts the adhesive sheet into an arbitrary shape (Sekisui Chemical Co., Ltd., trade name “ Sekisui cutting machine 920F type "or the like is preferably used. In addition, a pattern is cut in the antifogging film, and after the antifogging film is pasted on the surface of a transparent article or a reflective article, only unnecessary portions of the film are peeled off. It may be made to remove.

A means for attaching the antifogging film to the surface of the transparent article or the reflective article is not particularly limited, and may be attached with an adhesive, for example. A pressure-sensitive adhesive layer may be provided in advance on the back surface of the film having, and may be pressed and stuck to the adherend surface, between the surface of the transparent article or reflective article and the back surface of the film having antifogging properties. It may be affixed with a double-sided adhesive tape interposed.

When the film having antifogging property is provided with an adhesive layer in advance, after cutting the film having antifogging property into a pattern, the adhesive layer laminated on the back surface is exposed on the surface, Once temporarily attached to a so-called application tape that is used to cleanly adhere to the surface of a transparent article or a reflective article, which is an adherend, and transfer it to the surface of the transparent article or reflective article, Only the application tape may be peeled off and attached.

Since the method for producing an article having an antifogging effect in the pattern of the present invention is configured as described above, when a transparent film having an antifogging property is used, the surface of the article is fogged due to condensation. It is possible to obtain an article with extremely high designability, in which a pattern such as a target character or design is floating, by an extremely simple method.

Hereinafter, the present invention will be described in more detail with reference to examples. However, the present invention is not limited to these examples.

(Example 1)
Cut the 30-point letter “A” with an anti-fogging film (RP Topura Co., Ltd., trade name “cloudy film”) with a cutting machine (Sekisui Chemical Co., Ltd., trade name “Sekisui Cutting Machine 920F type”), Temporarily attach to a marking film transfer sheet (Sekisui Chemical Co., Ltd., trade name “Sekisui Application Tape # 555”), affix it to transparent glass for construction (Asahi Glass Co., Ltd.), peel off the marking film transfer sheet, and pattern An article having an antifogging effect was obtained.

The obtained pattern-shaped article having an anti-fogging effect is left in a room at a temperature of 23 ° C. and a humidity of 50% RH and then exhaled. And the opposite surface could be seen through.

The method for producing an article having an anti-fogging effect in a pattern according to the present invention is extremely anti-fogging in a pattern having a very high design, in which a desired pattern of characters, designs, etc. is floated by condensation by extremely simple means. An article having an effect can be manufactured.
In addition, when the pattern is a character, a design, or the like for the purpose of decoration, the decoration effect can be further enhanced by appropriately changing the environment such as light, temperature and humidity.

Claims (1)

A method for producing an article having an antifogging effect in a pattern, wherein a film having an antifogging property is attached to the surface of a transparent article that transmits light or a reflective article that reflects light.