JPH0953981A - Ultraviolet ray checker - Google Patents

Abstract

PROBLEM TO BE SOLVED: To check the intensity and exposure of ultraviolet rays easily according to the color by forming one or more dyes which change color depending on the intensity and/or exposure level of ultraviolet rays on a sealing face. SOLUTION: The ultraviolet ray checker is entirely formed out of a sealing body 8, and comprises a part 4 printed with a dye changing color reversibly upon irradiation with UV-rays, a gauge 5 for indicating the intensity level of UV-ray by means of an index, a part 6 printed with a dye changing color irreversibly and accumulatively, and a part 7 coated with an UV-cut article provided additionally, as required, in order to determine the effect of the UV-cut article. The gauge 5 is previously colored with a dye which changes color depending on the intensity of UV-rays and the intensity indications of 'weak', 'attention' and 'strong' are provided on the coloring band of gauge 5. Consequently, current intensity of UV-rays can be determined through comparison of indicated color.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ultraviolet checker for easily checking the amount of exposure of ultraviolet rays by color.

[0002]

2. Description of the Related Art Sunlight contains ultraviolet rays which have a bad effect on the human body, especially on the skin when exposed to a large amount of sunlight, and when exposed to too much sunlight outdoors, it may be harmful to health. In order to block this ultraviolet ray, various companies provide various ultraviolet ray blocking agents, sprays, or ultraviolet ray blocking films. However, these are not permanently effective, and their effectiveness decreases when, for example, they get wet with water. Therefore, these UV blockers had to be repainted regularly.

[0003]

However, since ultraviolet rays cannot be seen, it is conventionally necessary to check how much ultraviolet rays one has been exposed to, or how much the effectiveness of the ultraviolet blocker is reduced. Because it was difficult, I had no choice but to manage my own health by regularly going into the shade or repainting UV-blocking agents by my own intuition. In addition, since people who are particularly vulnerable to ultraviolet rays may be exposed to the ultraviolet rays through the glass even when they are indoors, it is necessary to be very careful about the ultraviolet rays. Moreover, although there are existing ultraviolet ray measuring devices, they are complicated, technical, and expensive, and reading those values will only affect the current amount of ultraviolet rays, which will affect the human body. It was not possible to measure the cumulative UV dose. In addition, even if the current amount of ultraviolet rays was digitized, it was not easy enough to understand how much the human body had no effect on the human body.

An object of the present invention is to provide an ultraviolet checker for easily checking the intensity and exposure of ultraviolet rays by color.

[0005]

In order to solve the above problems, the inventors of the present invention have used an ink that reversibly or irreversibly discolors by ultraviolet rays, and the amount of ultraviolet rays currently being exposed is determined by the degree of discoloration. Or, paying attention to the fact that the cumulative amount of UV light that has been taken up to now can be easily measured with different colors, and by forming them on, for example, the seal surface, the amount of UV light exposure can be easily measured by color. It is a developed UV checker.

The present invention is a seal-type UV checker in which at least one dye that changes its color depending on the intensity of UV light and the level of exposure is formed on the seal surface.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION The dye used in the present invention is not particularly limited as long as it is a dye that changes color depending on the intensity of ultraviolet rays and the level of exposure amount, but a dye that reversibly changes color by ultraviolet rays is formed on the sealing surface. By doing so, it is possible to display the intensity and exposure amount of ultraviolet light at the present time. Here, reversibly changing the color depending on the intensity of the ultraviolet ray and / or the exposure amount means that the dye reversibly changes the color according to the intensity of the ultraviolet ray and the level of the exposure amount, and changes from colorless to a certain chromatic color. Or vice versa, or when the color changes from a certain chromatic color to another chromatic color, or when the intensity of ultraviolet light or the exposure amount returns to the original value, the color changes again to the original color.

Therefore, it is sufficient to select one kind of this type of dye. This reversibly discoloring dye, specifically, a dye capable of displaying the level of the amount of ultraviolet rays currently being exposed is, for example, a photochromic ink, but it goes without saying that other dyes can be used as long as the above-mentioned action is exhibited. Absent. It is also possible to combine two or more kinds of dyes that change color depending on the intensity of ultraviolet rays and the level of exposure amount. In this case, the intensity of ultraviolet rays and the exposure amount at present can be determined by the color change of each dye.

On the other hand, since it is also important to measure the cumulative amount of ultraviolet light that has been exposed to the present, the present invention is a seal in which a dye that irreversibly accumulates the amount of ultraviolet light exposure and changes color is formed on the seal surface. The UV checker is also used. Here, the dye that irreversibly accumulates the exposure amount of ultraviolet rays and changes color means a dye whose color change reaction of the dye is irreversible.
Specifically, basic dyes such as malachide green and crystal violet lactone are suitable, but the color changes from colorless to a certain chromatic color, or vice versa, or from a certain chromatic color. The dye may be selected according to various variations of discoloration such as change to another chromatic color or change in hue or color tone, and is not particularly limited.

The reversible dye and the irreversible dye may be formed in combination with each other on the sealing surface,
It can be formed alone. The dye is most preferably printed on the seal surface by printing these dyes on the seal surface, but the present invention is not limited to this. For example, a coating method may be used. Here, the sealing surface is, for example, a surface of a base material such as tack paper adhered so as to be separable from the bonding material. Of course, the base material can be configured without attaching the bonding material. The seal surface is preferably covered with a protective film by sandwiching the printed dye in a sandwich shape. Although this protective cover is not essential for carrying out the present invention, as will be described later, there is a case where an ultraviolet blocking agent is applied from above the ultraviolet checker or it is used in such a manner that it gets wet with water. This is because it is desirable to cover with a protective film that is transparent and transmits ultraviolet light so that the ink printed on the sticker or the like does not drop by the action. In this case, the material of the film is not particularly limited, and various types such as polyethylene film and polypropylene film can be used.

The method of using this ultraviolet checker may be appropriately selected according to the above constitution, but the most preferable method of use is the so-called U, which recently contains an ultraviolet blocking agent.
It is desirable to use the cream as a V-cut product together as a guide for when to use it. For example, the ultraviolet checker may be attached to the skin of a human body to display the intensity and / or the amount of exposure of ultraviolet rays as a level, and a cream containing an ultraviolet blocking agent may be applied according to the change in the level. In addition, as another usage, you can stick a sticker printed with these dyes on clothes etc. to grasp the current UV condition where you are placed, or apply a UV blocker to your skin At the same time, it is also possible to apply it on the UV checker to confirm the effect of the UV blocking agent and its reduction.

Since it is necessary to confirm the color of the ink that has been discolored by ultraviolet rays as a level indicator of the intensity of ultraviolet rays, in some cases, the color of each level indicating the intensity of ultraviolet rays is printed beforehand as a guide. It is desirable to simply check the amount of ultraviolet rays that are currently exposed or the cumulative amount of ultraviolet rays that have been exposed up to now by comparing with the color.

Since the ultraviolet checker of the present invention is a seal-like checker in which at least one or more dyes that change color depending on the intensity of ultraviolet rays and / or the level of exposure amount are formed on the seal surface, the seal body can be peeled off and attached to the human body. For example, you can easily judge how much ultraviolet light you are currently receiving with color display, and if you display the level display such as "weak", "caution", "strong" in advance as index color display, The intensity of UV light and the level of exposure can be easily grasped by the color change.

When a dye that irreversibly accumulates the amount of exposure to ultraviolet rays and changes color is formed on the seal surface, the cumulative amount of ultraviolet rays that may affect the human body can be easily determined. The display format makes it easy for children to understand.

[0015]

EXAMPLES Examples of the present invention will be described below. FIG.
FIG. 2 is a sectional view showing an embodiment of a seal-type ultraviolet checker according to the present invention, and FIG. 2 is a plan view of the same.

In the figure, 1 is tack paper which is a base of a seal, and 2 is a dye printed on the tack paper.
As this dye, a dye that changes color depending on the intensity of ultraviolet rays and / or the level of exposure is used. 3 is a polypropylene film which is transparent and transmits ultraviolet rays.

As shown in FIG. 2, the ultraviolet checker of this embodiment has a seal member 8 as a whole, and a printed portion 4 of a dye that reversibly changes its color by ultraviolet rays, and a level of the intensity of the ultraviolet ray as an index. Gage 5 for printing, printed part 6 of dye that undergoes irreversible and cumulative discoloration, and in some cases U separately provided to check the efficacy of UV cut products.
It is composed of a V-cut product application site 7. In addition, 4 or 6 is printed for the portion of 7.

As shown in the figure, the gauge 5 is pre-colored with a color in which the dye changes its color depending on the intensity of the ultraviolet rays. Depending on the intensity, the color is "good", "caution", or "strong". Is also shown on the colored band of the gauge 5.
Therefore, the intensity of ultraviolet rays at the present time can be known by comparing the intensity of ultraviolet rays with the displayed color.

As the dye of the printing portion 6, the color of the dye changes depending on the total amount of ultraviolet rays received, and the dye that fades when exposed to excessive ultraviolet rays is used. Therefore,
If you print the letters "Please enter the shade" from the beginning and print the irreversible dark color dye on it, the color fades according to the accumulation of ultraviolet rays, and finally "Shade The words "Please enter" appear in the display, which makes it easy for children to see at a glance.

The dye printed on the printing portion 4 for judging the amount of ultraviolet rays currently exposed is the one containing a photochromic ink, which is printed on the printing portion 6 for judging the cumulative amount of ultraviolet rays exposed so far. As the dye, a dye containing a basic ink is used.

Specifically, the photochromic ink is compounded with a polyester resin (manufactured by Teikoku Ink Co., trade name "EG Medium") 70 parts Photochromic ink (manufactured by Nippon Chemix Co., trade name "Photochrome pst beads") 30 Part Light stabilizer 0.6 part Basic ink formulation is acrylic emulsion (acrylic ester copolymer, Nippon Carbide Co., trade name "Nikazol FX355") 90 parts Malachite Green 4 parts Silicone polyether copolymer (trade name "Anti-foam 013B") 2 parts Defoaming leveling agent (sodium acrylate, trade name "T-120" manufactured by Dainippon Ink and Chemicals, Inc.) 2 parts.

As shown in FIG. 2, the ultraviolet checker of the present embodiment is of a type in which a plurality of rectangular and circular ones are arranged, but the shape and the number are not limited to this. Needless to say, it can be used in various variations.

[0023]

The UV checker of the present invention is a seal-type UV checker in which at least one dye that changes color depending on the intensity of UV light and / or the amount of exposure is formed on the seal surface. You can easily check the intensity of UV light and the amount of exposure by the color just by pasting it on.

In particular, if a dye that reversibly changes color depending on the intensity of ultraviolet rays and a dye that changes color by irreversibly accumulating the amount of exposure to ultraviolet rays are formed on the seal surface, the influence of ultraviolet rays at the present time and This is very convenient because the cumulative effect of ultraviolet rays on can be easily determined.

Further, since it is a sticker type, it is very convenient to carry, and it can be visually judged by color, so that the display form is easy for children to understand. In addition, since it is a seal type, it is an extremely safe tool because it has only soft parts in its constituent parts.

[Brief description of drawings]

FIG. 1 is a sectional view showing an embodiment of a seal-type ultraviolet checker according to the present invention.

FIG. 2 is a plan view showing an embodiment of a seal-type ultraviolet checker according to the present invention.

[Explanation of symbols]

 1 Tack paper 2 Dye 3 Polypropylene film 4 UV reversible color change dye print area 5 Gauge 6 UV irreversible color change dye print area 7 UV cut product application area 8 Seal body

Claims (6)

[Claims] 1. A seal-type UV checker in which at least one dye that changes color depending on the intensity of UV light is formed on the seal surface. 2. The seal-like ultraviolet checker according to claim 1, wherein a dye that reversibly changes color depending on the intensity of ultraviolet rays is formed on the seal surface. 3. The seal-type UV checker according to claim 1, wherein a dye that irreversibly accumulates the exposure amount of UV rays and changes color is formed on the seal surface. 4. The seal-like UV checker according to claim 1, wherein a dye that reversibly changes color depending on the intensity of UV light and a dye that changes color by irreversibly accumulating an exposure amount of UV light are formed on the seal surface. 5. A seal-like ultraviolet checker according to claim 1, 2, 3 or 4, wherein the dye according to claim 1, 2, 3 or 4 is printed on tack paper to form a film thereon. 6. A method of using a seal-type UV checker, which comprises sticking the seal-type UV checker according to any one of claims 1 to 5 onto the skin of a human body to display the intensity and / or the exposure amount of the UV level as a level.