JP3094067U - Simple photocatalytic performance evaluation indicator card - Google Patents

Abstract

(57) [Summary] [Problem] Eliminates the need for complicated indicator adjustment and expensive and special equipment, and can be easily attached and fixed not only to a vertical surface or a ceiling surface, but also to any flat surface. The photocatalytic performance can be evaluated, skill is not required, and the dye in the aqueous solution state is held by the water holding piece, and the aqueous solution state over a long period of time can be maintained at a constant position. A dye which is faded by a photocatalyst is coated on one side of a support having good light transmittance and excellent workability, such as a plastic film as a transparent base material, to form a dye layer.
Alternatively, a dye-colored tape piece having a dye layer formed thereon is adhered, and the dye layer or the dye-colored tape piece is provided in a dye layer forming small hole pierced inside an appropriately shaped moisture holding piece, and the moisture retention is performed. A plurality of pieces are attached to the support so that a dye layer can be formed separately for each concentration, and water is contained in the dye layer, and the aqueous dye is held by the water holding piece. The adhesive part is adhered and fixed to the photocatalyst product.

Description

[Detailed description of the device]

[0001]

[Technical field to which the device belongs]

  This device simplifies the photocatalytic performance of air purifiers, outer walls and various other photocatalytic products. The present invention relates to a simple photocatalytic performance evaluation indicator card that can be evaluated.

[0002]

[Prior art]

  In recent years, products that use photocatalytic functions, such as deodorization and removal of harmful substances Air purifiers, deodorizing filters, exterior walls and exteriors of buildings mainly for antifouling, building materials, and te Anti-fog for side mirrors of clothing, papers, automobiles, etc. , Car body antifouling coatings, etc. have been developed, and various products such as those have a remarkable momentum. It is increasing. However, for such products, a standard that correctly evaluates the photocatalytic performance, The standards are evaluated by various companies and commercialized, so that consumers can improve their quality and safety. It was not an environment where photocatalyst products that ensure integrity could be selected appropriately.

[0003]   Recently, in view of these problems, the Photocatalyst Product Technology Council and the Photocatalyst Product Forum were established. There is a movement to form standards and standards, especially by the Photocatalyst Product Technology Council The photocatalytic performance evaluation test method is an excellent evaluation method that does not require expensive equipment. However, these methods also require chemical knowledge and skills. , Evaluator's mistakes and errors may occur in the evaluation method.

[0004]   In the process of creating standards and standards for photocatalyst products, the Photocatalyst Product Technical Council We propose liquid-phase film adhesion method, gas bag A method, and gas bag B method as test methods. is doing. As an evaluation method suitable for photocatalytic products of flat plate shape, liquid phase film There is a dressing method. This method, as shown in FIG. 5, is a photocatalyst flat plate product to be evaluated. A test color obtained by diluting methylene blue to 10 mg / l (based on anhydrous weight) with distilled water. 0.1 ml of the elementary solution 12 was dispensed, and the coating film 11 (low density polyethylene (Thickness: 30 to 50 μm, 30 ± 2 mm square), and a test for the purpose of preventing drying. The test portion is covered with a water holding petri dish 10 such as a plastic petri dish. this, After irradiating with ultraviolet light (1.0 mW / cm2) for 1 hour, the presence or absence of coloring is checked by visual observation. It is a judgment.   The above methods are highly evaluated as methods that can be tested without using expensive measuring instruments or chemicals. . However, even with this method, the concentration of the test substance (methylene blue, etc.) can be adjusted to some extent. It is necessary to familiarize yourself with this, and this test evaluation method is suitable only for products placed horizontally. There are many inconveniences because it can not be used, and it is not suitable when you want to evaluate on-site the photocatalyst construction It was good.

[0005]

[Problems to be solved by the device]

  Therefore, the present invention is in a simple photocatalytic performance evaluation indicator card that was developed extensively. Is proposed as a result of earnest research in view of the existing defects described above, and Suitable for the evaluation of photocatalyst products with the same shape, it does not require special equipment or chemical knowledge. An easy evaluation indicator card with a photocatalyst on one side of the transparent substrate A compound with a more fading effect is applied, and the adhesive part makes it easy to evaluate the base material. A card with a function that can be attached to a flat plate such as a vertical surface or a ceiling surface. The photocatalyst can be easily attached by attaching it to a shaped photocatalyst product and changing the color of the card in a predetermined time. The photocatalytic performance of products can be evaluated. Materials that give media functions, such as titanium oxide powder, sols, slurries, coatings Photocatalytic performance that can be applied to photocatalyst products of flat plate shape etc. manufactured using materials The purpose is to provide an evaluation indicator card.

[0006]

[Means for Solving the Problems]

  In order to effectively achieve the above-mentioned purpose, this invention is a simple photocatalytic performance evaluation In the case of the indicator card, the support 3 which is a transparent base material is removed by a photocatalyst. A simple photocatalyst performance evaluation indicator cover in which a dye layer 1 is formed by applying a color dye. The photocatalyst discolors the support 3 which is a transparent base material. A dye coloring tape piece 7 having a dye layer 8 formed by applying a dye on one surface is adhered and formed. Features a photocatalytic performance evaluation indicator card and is a transparent substrate The support 3 is made of a plastic film that has good light transmittance and excellent workability. It features a simple photocatalytic performance evaluation indicator card that is used for The dye layers 1 and 8 are the water-retaining pieces 2 having the small holes 14 for forming the dye layers 1 and 8 formed therein. , A simple photocatalyst formed in the small holes 14 by being attached to the support 3. It features a performance evaluation indicator card, and the water retention piece 2 is round or round. It has a polygonal shape or other appropriate appearance and is attached to the support 3 in plural numbers. A simple photocatalyst in which dye layers 1 and 8 for different concentrations are provided in the small holes 14 of the minute holding piece 2. It features a performance evaluation indicator card, and the top surface of the water retention piece 2 Adhesive portion 4 is formed by applying adhesive, and the adhesive portion 4 allows a vertical surface or a ceiling. Adhesively fixed to the photocatalyst product installed on the surface, etc., and irradiate light 13 from the surface of the support 3. Features a simple photocatalyst performance evaluation indicator card that can be evaluated and measured It is a thing.

[0007]

[Embodiment of device]

  The simple photocatalytic performance evaluation indicator card of the present invention is a transparent base material. Photocatalyst is used as a support for plastic films and other materials with good light transmission and excellent workability. To form a dye layer by applying a dye that fades on one side, or to form a dye layer The dye-colored tape piece is attached, and the dye layer and the dye-colored tape piece are appropriately shaped. The water-retaining piece is provided in the small hole for forming the dye layer formed inside the water-retaining piece. A plurality of dyes are attached to the support so that dye layers can be formed for each concentration, and the dyes Moisture is added to the layer, and the dye that has been made into an aqueous solution is held by the water-holding piece. The adhesive part on the upper surface is adhered and fixed to the photocatalyst product, and the photocatalyst is manufactured by irradiating light from the support side. Since the product can be evaluated, the moisture retention of the photocatalyst product Water retention of solvent (generally water) using a cotton swab on the dye layer formed inside the piece After adding a suitable amount of water to make it a dye solution so that it does not overflow from the piece, Attach the indicator card to the catalyst product so that the dye solution does not overflow, By irradiating the back surface, that is, the support side, with light such as ultraviolet rays and sunlight for a certain period of time. , The dye layer of a certain concentration fades and the photocatalytic performance can be visually evaluated. It can be easily attached to any flat surface, regardless of whether it is a vertical surface or a ceiling surface. Anyone can evaluate and measure photocatalytic performance.

[0008]   The dye in the dye layers 1 and 8 is a dye-based compound that fades by a photocatalyst. Although it itself decomposes with a photocatalyst and loses its color, it is faster to use an aqueous solution. Since the color fades, the dye layers 1 and 8 should be moistened with an appropriate amount of water, and the dye in an aqueous solution should be treated with water. The water-retaining piece 2 is provided so that the water-retaining piece 2 can hold the solution and keep the aqueous solution for a long time. Has been. The water retaining piece 2 has the same role as a conventional petri dish, but the former retains water. In order to keep it in a constant position as much as possible, the latter is to prevent water from evaporating. Used to hold as much as it comes.

[0009]

【Example】

  Next, a practical example of the indicator card for simple photocatalytic performance evaluation according to the present invention An example of application will be described in detail.

[0010]   Fig. 1 is a cross-sectional view of the indicator card. Release paper A such as an adhesive tape for a mold or an adhesive sheet is attached and integrated. Indicator Turcard is a transparent plastic film that has good light transmission and excellent workability. A circle, an ellipse, a triangle, a quadrangle or other polygonal shape is formed on one surface of the support body 3 as a base material. Moisture that has an external appearance and that has a small hole 14 formed by piercing its inside to a suitable size. A plurality of holding pieces 2 are attached. 4 water retention in a row at regular intervals on the drawing The pieces 2 are attached, but the number is not limited. Each small hole 14 of such a water retention piece 2 Inside, as shown in Figure 2, 10ppm, 30ppm, 60ppm, 120ppm As shown in FIG. 4, the dye layer 1 is formed by applying dyes of different concentrations as shown in FIG. Dye is applied to one side of the dye-coated carrier 9 to form the dye layer 8 The colored tape pieces 7 are cut according to the density and are sequentially loaded into the small holes 14 and attached. Be done.

[0011]   An adhesive portion 4 made of an adhesive is formed on the upper surface of the attached water retention piece 2, and Similarly, an adhesive portion 4a made of an adhesive is formed on the upper surface of the support 3 excluding the water retention piece 2. Then, after releasing the release paper A, the dye layers 1 and 8 in the small holes 14 of the water holding piece 2 are removed. A proper amount of water is injected, and the water is held by the water holding piece 2, and as shown in FIG. After obtaining the solution B as a solution, the photocatalyst Attach the coating carrier 5 to the photocatalyst layer 6, that is, attach it to the photocatalyst product surface to make it adhere, and The color of fading of the dye layers 1 and 8 is performed by irradiating light 13 from an external line from the support 3 side for a certain period of time. Therefore, the photocatalytic performance can be easily evaluated and measured.

[0012]

[Example 1]   An indicator card having the structure shown in FIG. 1 is made. For details, see 3 support As a film of polypropylene 30 μm with good light transmission and excellent processability Adhesive processing was applied to 2 and the water retention piece of 2 was also made of polypropylene 50 μm. The film is punched into a donut shape and attached to the support 3. With one more dye layer Then, methylene blue 10ppm, 30ppm, 60ppm, 120ppm Make a solution of each concentration and add polyvinylpyrrolidone (molecular weight 360.000) is added and printed, and a simple photocatalytic performance evaluation indicator card To get

[0013]

Example 2   An indicator card having the structure shown in FIG. 4 is made. Specifically, dye coat The dye-colored tape piece 7 having the dye layer 8 printed or impregnated thereon is placed on the printing carrier 9. Produced in the same manner as in Example 1 except that the material is die-cut into a predetermined size and attached to the support 3. . That is, the dye-colored tape piece 7 is used as the dye-coated carrier 9 on one side of the moisture-proof cellophane. Using a hydrophilic film, such as Dilution in aqueous solution of concentration (10ppm, 30ppm, 60ppm, 120ppm) It can be made by wrapping and dyeing.

[0014]

Example 3   As shown in Fig. 3, attach the indicator card so that it contacts a flat plate. Wear it and irradiate it with ultraviolet light 13 for a predetermined time to observe the color fading state with the naked eye. Evaluate. Specifically, the indicator card produced in Example 1 or 2 While allowing the dye layers 1 and 8 of FIG. Attach it to the photocatalyst product, and further attach the entire indicator card to the photocatalyst product. Then, the substrate 3 side was irradiated with UV light 13 for 6 hours, and the results are shown in Table 1. Show. The experimental results show that the simple evaluation was possible.

[0015]

[Table 1] 〇 ・ ・ ・ Complete disappearance of dye △ ・ ・ ・ Half disappearance of dye × ・ ・ ・ No disappearance of dye

[0016]

Example 4   How much photocatalytic effect is achieved in the environment where wallpaper with photocatalytic function is actually installed In order to confirm whether the photocatalyst is present, the photocatalyst evaluation after the wallpaper construction was tried. Irradiation light is natural light and fluorescent light In the same manner as in Example 3 except that the light irradiation time was 8 hours. The evaluation method was used. The results are shown in Table 2. Experimental results show that simple evaluation was possible It is something.

[0017]

[Table 2] 〇 ・ ・ ・ Complete disappearance of dye △ ・ ・ ・ Half disappearance of dye × ・ ・ ・ No disappearance of dye

[0018]

[Effect of device]

  According to the present invention, when evaluating photocatalytic performance, complicated indicator adjustment and expensive and special Easily attach and fix to any surface such as vertical surface, ceiling surface, etc. without requiring equipment Yes, the result judgment can be confirmed with the naked eye, and the user can see the light of the product without requiring any skill. It has the effect of notifying the catalytic effect, and the dye layer contains an appropriate amount of water to make it an aqueous solution. The water retention piece holds the dye that has become a solute, so the aqueous solution can be kept in a fixed position for a long time. Therefore, the photocatalytic performance can be easily evaluated.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of an indicator card.

FIG. 2 is a partially cutaway plan view of an indicator card.

FIG. 3 is a cross-sectional view of attaching an indicator card to a photocatalyst layer.

FIG. 4 is a cross-sectional view of a dye-colored tape piece and an indicator card to which the tape piece is attached.

FIG. 5 is a sketch showing a conventional photocatalytic performance evaluation method.

[Explanation of symbols]

1 dye layer 2 Water retention piece 3 support 4 Adhesive part 4a Adhesive part 5 Photocatalyst coating carrier 6 Photocatalyst layer 7 Dye coloring tape pieces 8 dye layer 9 Dye coating carrier 10 Petri dish for holding water 11 Covering film 12 Test dye solution 13 light 14 small holes A release paper B Aqueous dye

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Creator Hisashi Mori             Eiwari, New Family, Tomita-cho, Nakagawa-ku, Nagoya-shi, Aichi             1106 Mori Seibu Co., Ltd. (72) Creator Nobuya Hino             Esperanza 7-13 Akamatsucho, Saga City, Saga Prefecture             Akamatsu No.503 Daikasei Co., Ltd. (72) Creator Ken Yang             Esperanza 7-13 Akamatsucho, Saga City, Saga Prefecture             Akamatsu No.503 Daikasei Co., Ltd. (72) Creator Kisho Uryu             Pear Tech, 543 Hajimachi, Suzuka City, Mie Prefecture             Limited company

Claims (6)

[Scope of utility model registration request] 1. A simple photocatalytic performance evaluation indicator card comprising a support (3) which is a transparent base material and a dye layer (1) formed by coating a dye fading by a photocatalyst. 2. A dye-colored tape piece (7) having a dye layer (8) formed by applying a dye fading by a photocatalyst on one side to a support (3) which is a transparent substrate. A simple photocatalytic performance evaluation indicator card featuring. 3. The simplified photocatalytic performance evaluation indicator card according to claim 1, wherein the support (3), which is a transparent substrate, is made of a plastic film having a good light transmittance and excellent workability. 4. The dye layer (1, 8) is affixed to a support (3) with a water retaining piece (2) having a small hole (14) for forming the dye layer (1, 8) formed inside. The simple photocatalytic performance evaluation indicator card according to claim 1 or 2, wherein the indicator card is formed in the small hole (14). 5. The moisture retaining piece (2) has a circular or polygonal shape or other appropriate appearance, and a plurality of the moisture retaining pieces (2) are attached to the support (3) and the small holes (14) of each moisture retaining piece (2). The simplified photocatalytic performance evaluation indicator card according to claim 1 or 2, wherein a dye layer (1, 8) for each concentration is provided in the bracket. 6. A water-retaining piece (2) is coated with an adhesive portion (4) on the upper surface thereof, and the adhesive portion (4) adheres and fixes the photocatalyst product to a vertical surface or a ceiling surface. The simple photocatalytic performance evaluation indicator card according to claim 1 or 2, which can be evaluated by performing irradiation with light (13) from the surface of the support (3).