JP2004313934A - Portable device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To make full use of luminescent and antibacterial characteristics so as to improve visibility and avoid bacterial propagation. <P>SOLUTION: On the surface of the main body 1 of the portable device there is formed a coating-layer 2 containing a luminescent material 3 and an antibacterial material 4. The luminescent material may be a fluorescent material or a light-accumulating material. The antibacterial material may be an inorganic antibacterial agent containing silver or copper. Such an inorganic antibacterial agent can be obtained by heating at least one of silver nitrate, silver halide, silver oxide, together with a glass-material or a refractory material, followed by crushing the same. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a portable device such as a mobile phone and a camera. More specifically, the present invention relates to a portable device capable of exhibiting two characteristics of light emitting property and antibacterial property.
[0002]
[Prior art]
[Patent Document 1] Japanese Patent Application Laid-Open No. 2000-9910
For example, portable devices such as cellular phones and cameras have recently been significantly reduced in weight, size and cost. For this reason, in addition to requiring a certain level of strength and durability, the device body needs to be compatible with mass production, and ABS resin, polycarbonate resin, acrylic resin, and the like having high workability are widely used. In addition, the appearance quality of such a portable device is also important, and the surface of the portable device is usually coated to cover the resin background.
However, such a conventional coating simply applies or sprays a colored paint to cover the underlying resin color and give a new color.
[0004]
However, the painted surface of the device itself has a poor grip due to its smooth surface, and it often falls during handling.Especially if the mobile phone is lost in the dark, indoors or outdoors, the visibility is extremely low. However, there was a problem that it could not be easily found. In addition, when a mobile phone, a camera, or the like is used for a long period of time, there is a problem in that hand marks and dirt adhere to the surface of the device main body, and bacteria are propagated, which is not hygienic.
[0005]
[Problems to be solved by the invention]
The present invention solves the above-mentioned conventional problems and provides a portable device that exhibits two characteristics of luminescence and antibacterial properties, thereby improving visibility and preventing the propagation of various bacteria. It was completed for the purpose.
[0006]
[Means for Solving the Problems]
In order to solve the above-mentioned problems, a portable device according to the present invention is characterized in that a coating film containing a luminescent substance and a substance having an antibacterial function is formed on a surface of a main body of the apparatus.
[0007]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.
The drawings show cross-sectional views of the main parts of the present invention. In the drawings, reference numeral 1 denotes a main body of a device such as a mobile phone or a camera, and reference numeral 2 denotes a thin coating film having a thickness of about 1 to 100 μm formed on its surface. The device main body 1 is made of an ABS resin, a polycarbonate resin, an acrylic resin, or the like having high workability. Since the resin itself is colorless, white, or transparent, the appearance quality is improved by forming the colored coating film 2 on the surface. It is configured to increase.
[0008]
The present invention has a characteristic configuration in that the coating film 2 formed on the surface of the device main body 1 contains a luminescent substance 3 and a substance 4 having an antibacterial function.
As a result, two properties of luminescence and antibacterial properties are exhibited, and it is possible to improve visibility and prevent the propagation of various bacteria.
[0009]
The luminescent substance 3 includes a fluorescent pigment or a luminous pigment.
The fluorescent pigment is an organic pigment that is obtained by dissolving a fluorescent dye in a synthetic resin, curing the resin, and then pulverizing the resin to produce a clear color. The luminous pigment refers to an inorganic pigment that emits phosphorescence for a relatively long time in a dark place after being irradiated with sunlight or artificial illumination light.
By including such a luminescent substance 3 in the coating film 2, a color-developing action is exerted. For example, even if the substance is dropped during handling, it can be immediately noticed because it stands out. In the case of loss or the like, the visibility is very good and it can be easily found.
[0010]
As a substance having an antibacterial function, there is an inorganic antibacterial agent containing silver or copper.
More specifically, this inorganic antibacterial agent is obtained by heating at least one substance selected from silver nitrate, silver halide, and silver oxide together with a glass material or a refractory material, and then pulverizing the material. In addition, the inorganic antibacterial agent is granular and has an average particle size of about 0.01 to 20 μm.
The inclusion of the substance 4 having such an antibacterial function in the coating film 2 exerts an antibacterial action, so that even if it is used for a long time and the surface of the device body 1 is stained with dirt or dirt, the propagation of various germs can be accurately achieved. It can be prevented and is extremely hygienic.
[0011]
As described above, in the present invention, since the coating film 2 containing the luminescent substance 3 and the substance 4 having an antibacterial function is formed on the surface of the device body 1, the colorless, white or transparent base color of the device body 1 is The concealed and colored coating film 2 appears on the surface, and exhibits an excellent appearance. In addition, since the light-emitting substance 3 is contained, it exhibits a fluorescent property or a light-storing property, and develops a color even in darkness, thereby greatly improving visibility. Further, since the coating film 2 contains the substance 4 having an antibacterial function, even if hand grime or dirt adheres to the surface of the apparatus body 1 during use, the antibacterial substance prevents the propagation of various bacteria. , And can maintain a clean state.
Furthermore, since the powder of the luminescent substance and the substance having an antibacterial function is held in a state of protruding from the surface of the coating film, the surface becomes slightly uneven, so that there is little danger of slipping off due to a great increase in grip force. There are benefits too.
[0012]
[Example]
A paint containing 20 parts by weight of a commercially available phosphorescent material (SrAl ₂ O ₄ : Eu ²⁺ .Dy ³⁺ ) and 0.5 part by weight of a silver-based inorganic antibacterial agent is prepared with respect to 100 parts by weight of an acrylic resin paint. did. This paint was applied to the surface of a mobile phone made of ABS resin by a spray gun to form a paint film.
(Confirmation of effect)
The cell phone thus obtained was illuminated at 400 lux for 1 hour using a fluorescent lamp of D65 light source for 1 hour. As a result, it was confirmed that the phosphorescent pigment in the coating film emitted light and the visibility was greatly improved. It was confirmed that it could be increased.
Moreover, the 10 ⁵ cells / ml of E. coli liquid to the surface of the coating film was 1ml dropping, temperature of 37 ° C., in an environment of a humidity of 90% or more by checking the 24-hour survival bacteria after passage, evaluate antimicrobial did. As a result, a decrease in the number of bacteria of 10 ³ or more was observed, and the excellent antibacterial activity of the present invention was confirmed.
Further, similarly to 10 ⁵ cells / ml of Staphylococcus aureus on the surface is 1ml dropping, temperature of 37 ° C., by examining the number of viable bacteria after 24 hours in an environment of a humidity of 90% or more was evaluated antimicrobial . As a result, a decrease in the number of bacteria of 10 ³ or more was observed, and the excellent antibacterial activity of the present invention was confirmed.
[0013]
【The invention's effect】
As is clear from the above description, the present invention exhibits two properties of luminescence and antibacterial properties, and can improve visibility and prevent the propagation of various bacteria.
Therefore, the present invention greatly contributes to industrial development as a portable device that has eliminated the conventional problems.
[Brief description of the drawings]
FIG. 1 is a sectional view of a main part showing an embodiment of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Device main body 2 Paint film 3 Luminescent substance 4 Substance with antibacterial function

Claims (5)

A portable device characterized in that a coating film containing a luminescent substance and a substance having an antibacterial function is formed on a surface of a device body. The portable device according to claim 1, wherein the luminescent substance is a fluorescent pigment or a luminous pigment. The portable device according to claim 1, wherein the substance having an antibacterial function is an inorganic antibacterial agent containing silver or copper. 4. The portable device according to claim 3, wherein the inorganic antibacterial agent is obtained by heating at least one substance selected from silver nitrate, silver halide, and silver oxide together with a glass material or a refractory material, and then pulverizing the material. machine. The portable device according to any one of claims 1 to 4, wherein the powder of the luminescent substance and the substance having an antibacterial function is held in a state of protruding from the surface of the coating film so as to enhance gripping force.

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