JPS60188163A - Indicator - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention can be used in conjunction with a deodorizer that is frequently used under sunlight, such as a deodorizer placed in a car, etc., so that the effectiveness of the deodorizer can be confirmed. Concerning the indicators.

Generally, deodorizers suitable for deodorizing inside automobiles, etc., use deodorizing agents such as activated carbon, which have excellent adsorption properties for odor particles suspended in the air, and gradually become saturated during use, resulting in deodorizing capacity. decreases and eventually loses its effectiveness. Therefore, deodorizers have a preset expiration date and must be replaced once this expiry date has passed.

However, deodorants are generally used for a relatively long period of time, and it is troublesome to judge the expiration date and replace them.Therefore, there is no way to simply display the appropriate replacement period and detect the effectiveness of the deodorizer. It becomes necessary.

In view of the above-mentioned points, the present invention provides an indicator that can visually confirm the effectiveness of a deodorizer used in products such as car deodorizers that can be used under sunlight, whether directly or indirectly. With the goal.

In the indicator of the present invention, a drug that changes color and fades in response to light is filled into a see-through container or molded to form a certain shaped body, and a part of this shaped body is oriented in the direction of sunlight irradiation. The shaped body is placed so that the usage period of the product to which it is attached can be confirmed, and for example, it can be attached to a car deodorizer to display whether the deodorant is effective or not.

Embodiments of the present invention will be described below based on the drawings.

Figure vS1 is a sectional view showing the structure of the indicator 1 according to the present invention, and reference numeral 2 denotes a transparent container made of colorless transparent or colored transparent glass, synthetic resin, etc.
has an opening 3 at one end, and a color-changing agent 4 capable of changing color in response to sunlight is filled into the container 2 through the opening 3. The color change agent 4 is formed by mixing a coloring material that discolors and fades when exposed to sunlight, that is, a pigment or dye with low sunlight fastness, and a pigment or dye that has extremely high sunlight fastness, on the contrary. Note that these pigments or dyes will be described later. Of course, only pigments or dyes with weak sunlight fastness may be used. Then, the indicator 1 filled with the color-changing agent 4 is placed in a case 5 as shown in FIG. Incorporate it inside. The case 5 has an aperture 6 so that the light-receiving end of the indicator 1 is exposed to light, and the case is installed with the aperture 6 facing the direction of sunlight irradiation. Further, an opening hole 7 for checking discoloration is provided on the side opposite to the light receiving side. In this state, since sunlight enters one end of the indicator l from the opening hole 6 side, the pigment or dye with weak sunlight fastness among the filled color changing agents 4 changes color and fades. On the other hand, pigments or dyes with high sunlight fastness retain their color. This phenomenon starts from one end of the opening side 3 of the indicator 1 and gradually progresses to the other end, and as time passes, the discoloration area gradually increases, and eventually the color at the other end becomes different from the first color. The point in time is the desired end point. This end] The illumination point is aperture 7
You can check it through. For example, if the shelf life of the substance for which the indicator 1 is installed is 6 months, the container is filled with a color-changing agent 4 so that the color will fade when exposed to direct light or scattered light, and the color on the other end will change after 6 months. Adjust the length of 2. Also, by adjusting the area of the light receiving section 3,
Able to achieve purpose. Of course, it is also possible to adjust the irradiation amount and intensity for summer and winter, which are different.

Figure 3 schematically shows the color change process of the indicator 1 installed in the case 5, where the X marks are the colors of pigments or dyes with low sunlight fastness in the indicator 1, and the ○ marks are the colors of the pigments or dyes with low sunlight fastness. Indicates high pigment or dye color. FIG. 5A shows the mixed color state at the initial stage of use, where the entire indicator 1 is in the first mixed color. ) in the same figure shows a state in which the pigment or dye indicated by the X mark has partially faded due to sunlight irradiation. FIG. 1C shows that the entire indicator 1 has completely changed color, and this state can be confirmed from the case hole 7.

By the way, regarding pigments or dyes with high sunlight fastness, there are red colors such as amaranth, tartrazine, Lysole Rubin B, Laketud C, Lysole Red, Toluidine Red, Herendovink CN, Permaton Red, Red Garla, and Calamine, and nine blue colors. Examples of yellow include indigo, calpanthrene blue, phthalocyanine blue, gunjo, chromium hydroxide, etc. Examples of yellow include yellow iron oxide, Fastride Yellow 3G, Pola Yellow 5G, Benzidine Yellow 〇, permanent orange, Benzidine Orange G, and orange. - There are tartrazine, etc., and the greens include nutall green B, light green SF yellow, pyranine conch, alizanine cyanine green F, oxidized, loam, etc. Black naphthol black and purple alizurol purple have high sunlight fastness. White pigments include inorganic pigments such as anhydrous silicic acid, magnesium silicate, talc, kaolin, bentonite, mica, zirconium oxide, magnesium oxide, calcium carbonate, and titanium oxide, all of which have high sunlight fastness. In addition, for pigments or dyes with low sunlight fastness, red colors include Rose Bengal, Phloxine BK, Tetrabromofluorescein,
Rhodamine B, erythrosin, newcoccin, etc. are included, and the blue ones include indigo carmine and alphazurin FG.
etc., and the yellow ones include β-carotene, cabsanthin,
Bixin, safrole yellow, rutin, quercetin, exochrome, short fluorescein.

x IJ x Romi 7 Yellow N A + ') Lanin, Quinoline Yellow, Orange SS, Yellow OB, Yellow A
Examples of green include Guinea green, Quinizarin green SS, and chlorophyll. The above-mentioned color change agent can be prepared by combining two or more of these pigments or dyes having different sunlight fastnesses. For example, a mixture of Railrad C and indigo carmine exhibits a purple color, which becomes red after fading by sunlight. or,
Borae o-5Q.

It has a reddish-purple color that is a mixture of Gunjo and Rose Bengal K, and turns green after fading. Furthermore, it is also possible to use only one type with low sunlight fastness. For example, if Guinea green is used, it will turn yellowish brown after fading.

FIGS. 4 and 5 relate to Embodiment I, and show a case in which the indicator is attached to an on-vehicle deodorizer with a validity period of 8 months. In this case, the indicator 8 is
A glass pipe 9 having a diameter of 15 mm and a length of 70 m is filled with a color change agent 11 through an opening 10 thereof. Color change agent]]
is prepared by sufficiently kneading 20 parts of toluidine red, 30 parts of indigo carmine, 100 parts of titanium oxide, and 50 parts of water. After filling the color change agent, the pipe opening 1o is closed using a disc-shaped lid 12. A translucent part (transparent part) 13 with a diameter of 3 pus is formed in the center of the lid body 12.
The surrounding area other than the light-transmitting part is colored with opaque black or the like or is treated with opacity. This hollow colored lid 12
The amount of light received is limited, and the color changing agent 11 is irradiated with the light. Next, the injector 8 thus produced is installed inside the deodorizer case 14 in such a direction that the lid 12 side is exposed to sunlight, as shown in FIG. However, although the case 14 is made of an opaque body and has a structure in which a deodorizing agent is stored and adsorbed therein, only the indicator 8 is shown in the figure, and other detailed grooves are omitted. An aperture 15 for light reception is formed on one side of the case 14, and the light receiving part of the indicator 8 is placed in this hole, and an aperture 15 is formed on the opposite side of the case.
6 is formed and the indicator 8 finishes changing color (i.e.,
It is now possible to check the point at which the deodorizer's effectiveness is no longer effective. Note that when not in use, the openings 15 and 16 of the case must be sealed with a light shielding member. Furthermore, there is a difference in the amount of sunlight irradiation between winter and summer, and as a result, the interior of a car becomes hotter in summer, and more adsorbed substances are generated. Therefore, in the summer, the effective period of the deodorizer is shortened, but at the same time, due to the increase in the amount of sunlight, the period when the indicator finishes changing color is also shortened, so that the point at which the deodorizer becomes ineffective can be almost accurately indicated.

In the above embodiment, the case 14 is configured so that it can be confirmed only at the end of the color change period of the indicator.
It is not possible to check the progress of discoloration. Next, a description will be given of a device that improves the above drawbacks and allows the discoloration range of the indicator to be checked at any time as needed.

FIGS. 6 and 7 relate to the second embodiment. FIG. 6 is a plan view, and FIG. 7 is a longitudinal sectional view thereof. In this embodiment, the indicator 17 is installed in a storage case 18 for a deodorizer, etc., and a polarization filter 19 is arranged on the top surface of the case 18.The polarization filter 19 allows the light irradiated from the light receiving side of the indicator 17 to be is cut so that it is on the side opposite to the light receiving side. Therefore, 'indicator 17
You can check the status of the discolored area from the top of the container at any time.

FIG. 8 relates to a third embodiment, in which the status of the discoloration area of the indicator 20 can be checked at any time by opening and closing the lid, and the lid 22 is attached to the top surface of the storage case 21. An indicator 2 is provided on the back side of this lid part 22.
0 is fixedly or removably attached, and the lid part 22 has a spring-lid structure with a coil spring 23 and a fixture 24.

Therefore, if the fixing device 24 is released as necessary, the indicator 20 attached to the lid portion 22 can be exposed to the outside of the case and viewed directly as shown in the figure. Note that the indicator may be fixed inside the container without being fixed to the lid, so that only the lid can be lifted up.

In either case, the lid must be closed again after confirmation.

9 to 12 relate to the fourth embodiment. Figure 9 shows the external appearance, number 10 shows the indicator part and observation part, Figure 11 shows the display part, and Figure 12 shows the cross section of the light source fiber in the observation part. In this embodiment, an observation device is constructed using an optical fiber along an indicator 26 installed in a storage case 25, and the observation device consists of a light source fiber 2 with a cap.
7 and an optical fiber 28 connected to this light source section 27
and a display projection window 29 to which the other tuft 1, 1 part of this fiber 28 is connected. The light source fiber 27 is for taking in natural light or lamp light during observation and illuminating the indicator 26.
For example, it may be made of glass or acrylic and formed into a columnar shape, but it is better to form it by bundling many thin glass fibers together. A light shielding cap 27a made of black rubber or the like is normally fitted onto the upper end surface of the light source fiber 27, and a groove 27b is formed at the lower end of the cap 27a as shown in FIG. has been done. The groove 27b allows the light source fiber 27 to be connected to the case 25.
It is held movably along the opening 25a on the top surface. Furthermore, the light source fiber 27 has a first
As shown in FIG. 2, a through passage 27c is formed to connect the optical fibers 28, and one end of the fiber 28 is directed toward the lower end of the light source fiber 27, that is, toward the indicator 26 side. On the outer cylindrical surface of the indicator 26, display symbols such as numbers indicating the color change area are attached from the light receiving side in the longitudinal direction, and the image guided through the optical fiber 28 is projected onto the projection window 29 and observed. . In addition, if the display number is attached to the transparent outer case surface of the indicator 26 in the same color as the initial color of the color change agent, the display number will be displayed sequentially as the color change area increases. In this case, since the light source fiber 27 moves by the length of the indicator 26 in order to check the color change area, the optical fiber 28 connected between the light source section 27 and the display section 29 needs to have flexibility. For this reason, the optical fiber 28 is wound spirally, for example. In addition,
In such an observation device, in order to prevent light from entering through the case opening 25a, the opening is covered from the left and right with flocked soft rubber, vinyl chloride leather, cloth, leather, etc.

Even in this case, the light source fiber 27 is
can be moved along. In the above device, the light source fiber 27 is moved and the discolored region is projected onto the display window 29 through the optical fiber 28 for observation. can also be moved along the case opening 25; to be viewed directly from the top of the magnifying device. In this case, a light-shielding camp made of black rubber or the like is normally fitted so that it can be fitted onto the upper end surface of the enlarging device.

In the above-mentioned embodiment, the indicator has a structure in which a transparent container is filled with a color-changing agent, but instead of being filled in a container, the indicator body is formed by molding the color-changing agent into a certain shape. It is also possible to use or,
When a transparent container is used, it may be a pipe-shaped container that does not have a bottom at one end and is open at both ends.

As described above, according to the present invention, a shaped body made by filling or molding a drug that changes color in response to light into a transparent container is placed in a predetermined product case so that light is irradiated from one end of the body. Since it is possible to confirm the usage period of the product by increasing the discoloration area, it can be installed inside the case of a car deodorizer and used as a means to display whether the deodorizer is effective or not. . Therefore, it is effective for use in products that are frequently used under sunlight.

[Brief explanation of drawings]

1 and 2 are cross-sectional views schematically illustrating the structure of the indicator according to the present invention, FIG. 3 is an explanatory diagram illustrating the color change process of the indicator, and FIGS. 6 and 7 relate to a second embodiment of the present invention, - FIG. 6 is a plan view, and FIG. 7 is a sectional view taken along the line I--I of FIG. FIG. 8 is a perspective view showing the third embodiment of the present invention, and FIGS. 9 to 12 relate to the fourth embodiment, and FIG.
is a perspective view showing the external appearance, FIG. 10 is a perspective view showing the observation section,
FIG. 11 is a perspective view showing the display section, and FIG. 12 is a longitudinal sectional view showing the light source fiber. 1... Indicator body, 2... Transparent container, 3...
...Aperture (light receiving part), 4...Discoloration agent, 5...Product case. t'' Agent Patent Attorney Susumu Ito 1...j,.\-- Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 8 Figure 12

Claims (1)

[Claims] A drug that can change color in response to light is filled or molded into a transparent container to form a certain shape, and a part of this shape is placed facing the direction of sunlight to indicate the period of use. An indicator characterized by: