Electron donor substance visualization kit and electron donor substance visualization method

Abstract

To provide an electron donor substance visualization kit which improves visibility of a colored place even when an attachment site of an electron donor substance such as an urea component and a trace amount of protein component is a dark color such as block and brown, and dissolves an odor problem by unwiping and a risk of secondary infection of a norovirus when the electron donor substance is vomit, and an electron donor substance visualization method using the same.MEANS FOR SOLVING THE PROBLEM: An electron donor substance visualization kit is a combination of liquid A containing a coloring component composed of an electron donating coloring agent and a solvent, and liquid B containing a bleach component composed of an electron accepting agent and a solvent, wherein a foaming agent is contained in either or both of the liquid A and the liquid B.SELECTED DRAWING: Figure 4

Description

[Technical Field]

[0001] The present invention relates to an electron donor visualization kit capable of visualizing urinary components and other electron donors, and a method for visualizing electron donors using the same. [Background technology]

[0002] Urine components are prone to scattering on toilet floors and walls, and if left unattended, they can be decomposed by bacteria and cause unpleasant odors, such as ammonia. Protein components, such as milk, sweeteners, and juices, are also prone to scattering in the kitchen and around dining tables, causing stains and odors if left unattended. Furthermore, it is desirable to quickly and reliably remove biological stains, such as saliva, vomit, and fingerprints, to prevent unpleasant odors and infectious diseases. For this reason, cleaning is performed periodically or as needed. However, these deposits are nearly transparent, making them difficult to visually inspect after drying. Therefore, even after cleaning, it is impossible to confirm whether they have been completely removed. As a result, many people feel that odors persist despite cleaning.

[0003] To solve this problem, the applicant has previously filed a patent application for an electron donor visualization kit that combines Solution A, which contains a coloring component consisting of an electron donor colorant and a solvent, with Solution B, which contains a bleaching component consisting of an electron acceptor and a solvent, and a method for visualizing electron donors using the kit (Patent Document 1). This allows the adhesion sites of electron donors, such as urine components and trace protein components, to be colored and stably visualized over a certain period of time, thereby solving the problem of odors after cleaning.

[0004] Here, the electron-donating colorant in Solution A must be a coloring component that easily loses electrons and oxidizes, and dyes are generally used. Because dyes have poor hiding power, when the surface to which the electron-donating substance is attached is dark, such as black or brown, the visualized area is difficult to see, and there is a risk of areas remaining unwiped. This can lead to odor problems, and if the electron-donating substance is vomit, there is also the risk of secondary infection with viruses such as norovirus.

[0005] [Patent Document 1] WO2022 / 185727 Summary of the Invention [Problem to be solved by the invention]

[0006] The object of the present invention is to solve the above-mentioned conventional problems by providing an electron donor visualization kit that can reliably visually identify colored areas even when the areas where electron donors such as urine components or trace protein components have adhered are dark colors such as black or brown, and that eliminates odor problems caused by incomplete wiping and the risk of secondary infection by norovirus and the like when the electron donor is vomit, as well as a method for visualizing electron donors using the same. [Means for solving the problem]

[0007] The electron donor visualization kit of the present invention, which has been developed to solve the above-mentioned problems, is an electron donor visualization kit characterized by combining liquid A containing a coloring component consisting of an electron donor colorant and a solvent, and liquid B containing a bleaching component consisting of an electron acceptor and a solvent, and is characterized in that either liquid A or liquid B, or both, contain a foaming agent.

[0008] The foaming agent is preferably one that, when mixed with the bleaching component and the coloring component in the same concentration and ratio, causes the electron-donating colorant to fade in 30 minutes or less, and is more preferably selected from the group consisting of amine oxide, alkylbenzene sulfonate, polyoxyalkylene alkyl ether sulfate, alkyltrimethylammonium salt, lauroyl sarcosine salt, alkylbetaine, and mixtures thereof.

[0009] It is also preferred that the electron donor is a compound containing at least one nucleophilic atomic group, and that the nucleophilic atomic group is any one selected from the group consisting of C=C, CN, C=N, -NH, -NH-, -SH, and combinations thereof.

[0010] Furthermore, it is preferable that the liquid A or B contains a quaternary ammonium salt, and it is also preferable that the liquid A or B contains a thickener that gels with calcium ions.

[0011] Furthermore, it is preferable that the liquid A and the liquid B are filled in separate foam-discharging containers.

[0012] In addition, the electron donor visualization method of the present invention, which has been made to solve the above-mentioned problems, is an electron donor visualization kit that combines liquid A, which contains a coloring component consisting of an electron donor colorant and a solvent, and liquid B, which contains a bleaching component consisting of an electron acceptor and a solvent, onto the surface to which the electron donor is attached, and is characterized in that the electron donor visualization kit, which is characterized in that either liquid A or liquid B or both of liquids A and B contain a foaming agent, is sprayed to make the area where the electron donor is attached visible. [Effects of the Invention]

[0013] To visualize an electron donor using this method, first, Solution B, which contains a bleaching component consisting of an electron acceptor and a solvent, is sprayed onto the surface of the electron donor. The bleaching component reacts with the electron donor at the site of the electron donor, reducing the bleaching ability accordingly, but the bleaching ability remains the same in other areas. Next, Solution A, which contains a coloring component consisting of an electron-donating colorant and a solvent, is sprayed onto the surface. Because the bleaching ability is reduced at the site of the electron donor, the coloring component is not bleached. However, because the bleaching ability is not reduced in other areas, the coloring component is bleached and becomes colorless. Note that Solutions B and A may be sprayed almost simultaneously, or Solution A may be sprayed before Solution B.

[0014] As a result, the dye remains only in the areas where the electron donor is attached, while the unattached dye is decolorized and becomes colorless, making it possible to stably visualize only the areas where the electron donor is attached for a certain period of time. Moreover, according to the present invention, since a foaming agent is incorporated into either or both of the A and B solutions, the sprayed solution forms foam when sprayed onto the areas where the electron donor is attached. This foaming conceals the underlying surface, allowing the stained areas to be reliably visualized even if the areas where the electron donor is attached are dark in color, such as black or brown. This eliminates odor problems caused by incomplete wiping and the risk of secondary infection, such as norovirus, if the electron donor is vomit. Furthermore, since the foaming agent also has a cleaning effect, the areas where the electron donor is attached can be cleaned by wiping them with a sheet or the like after visualization. Furthermore, by filling the liquid A and the liquid B into a foam dispensing container, foam is formed when the liquid is sprayed, making the device easy to use.

[0015] In addition, the coloring component sprayed on areas other than those to which the electron donor is attached becomes colorless, which has the advantage that the appearance of the sprayed surface does not deteriorate. If liquid A or B contains a quaternary ammonium salt, there is the advantage that the decolorization rate of liquid A due to the reaction between liquid A and liquid B can be increased.

[0016] It is also preferable to use a foaming agent that, when mixed with the bleaching component and the coloring component in the same concentration and ratio, causes the electron-donating colorant to fade in 30 minutes or less, thereby improving visibility without significantly slowing down the fade time (visualization time) of areas other than the stained area compared to conventional visualization kits. Furthermore, the foaming agent is preferably selected from the group consisting of amine oxide, alkylbenzene sulfonate, polyoxyalkylene alkyl ether sulfate, alkyltrimethylammonium salt, lauroyl sarcosine salt, alkylbetaine, and mixtures thereof. These foaming agents are inherently resistant to oxidation by bleaching components (i.e., they have no electron-donating properties), and therefore the oxidation reaction caused by the bleaching components in Solution B acts intensively on the colored components, thereby improving visibility while maintaining the decolorization time (visualization time) of areas other than the stained areas at approximately the same level as that of conventional visualization agents (Comparative Example 1 described below).

[0017] Furthermore, because the electron donor visualization kit of the present invention is a combination of these solutions A and B, the concentrations of each can be optimized and sold, preventing excessive bleaching that would discolor wallpaper, etc., or insufficient bleaching that would leave pigment residue. [Brief explanation of the drawings]

[0018] [Figure 1] FIG. 1 is a cross-sectional view showing an example of an electron donor visualization kit of the present invention. [Figure 2] FIG. 1 is an explanatory diagram showing the function of a quaternary ammonium salt in the present invention. [Figure 3] FIG. 1 is a diagram illustrating a method for using the electron donor visualization kit of the present invention. [Figure 4] 1 shows the results of comparing the visibility of the electron donor attachment site using the electron donor visualization kit of the present invention (Example) and a conventional electron donor visualization kit (Comparative Example). DETAILED DESCRIPTION OF THE INVENTION

[0019] Preferred embodiments of the present invention will be described below. In the present invention, a combination of Solution A, which contains a coloring component consisting of an electron-donating colorant and a solvent, and Solution B, which contains a bleaching component consisting of an electron-accepting agent and a solvent, is used. The electron donor visualization kit of the present invention refers to a tool used to spray Solutions A and B onto an electron donor to visualize the electron donor. Its form is not particularly limited, and may include, for example, one or more spray containers, packs, collection tubes, syringes, etc., each filled with Solution A and Solution B. It may also be electrically driven using a sensor or power source, or may be an aerosol-like device in which the contents are sprayed in a mist under gas pressure. Furthermore, it is preferable that Solution A and Solution B are each filled in separate spray containers. Filling them in separate spray containers does not necessarily require two physically separated containers; it may also be a form in which first and second separate containers are connected to each other. 1, a configuration may be adopted in which first and second containers are connected to each other and different liquids are mixed before spraying using a suction pipe 3 that connects both containers 1 and 2, and the mixed liquid is sprayed from a single nozzle. The spray container may also be configured to be electrically driven using a sensor or power source, or may be configured like an aerosol in which the contents are sprayed in a mist form using gas pressure.

[0020] The electron donor to be visualized is preferably a compound containing at least one nucleophilic atomic group, and the nucleophilic atomic group is preferably any one selected from the group consisting of C=C, CN, C=N, -NH, -NH-, -SH, and combinations thereof.

[0021] Specific examples of electron donors include amino acids, proteins and peptides composed of amino acids, creatinine, carbohydrates, vitamin C, amylase, ethanol, and ammonia. The amino group of amino acids and the ether group of glucose and glucose are easily oxidized electron donors, and urine components, including proteins, can be visualized. In addition, compounds with high electron density (δ-) bonds such as C=C, C=N, CN (including peptide bonds), -NH2, -NH-, and -SH, are easily oxidized. Therefore, in addition to urine components, compounds such as starch, proteins, amino acids, and sugars can also be visualized. This allows visualization of urine components, saliva, and vomit, as well as fingerprints, sweat, and biofilms containing urea and protein. It can also visualize sweeteners and juices containing glucose and glucose, foods containing antioxidants and vitamin C such as soft drinks, tea, sake, rice, and sugar, and soap scum.

[0022] Liquid A is a liquid containing coloring components consisting of an electron-donating colorant and a solvent. An electron-donating colorant is a colorant that loses electrons and is easily oxidized. This property applies to dyes in general, and the dyes shown in Tables 1, 2, and 3 below can be used. Table 1 shows acid dyes including anthraquinone dyes, Table 2 shows basic dyes, and Table 3 shows other dyes. CI in the tables is the color index established by the British and American dye societies. The amount added should be sufficient to color the solvent, and is preferably about 10 ppm to 10% by weight, and more preferably 100 ppm to 1% by weight. Furthermore, to improve the visibility of the colored areas, conventionally known fluorescent dyes may be used. When the applied spray liquid is irradiated with UV light, the colored areas emit light, making it possible to more reliably visualize the electron donor.

[0023] [Table 1]

[0024] [Table 2]

[0025] [Table 3]

[0026] In this embodiment, a foaming agent is blended into Solution A. The foaming agent is a type of surfactant that generates and stabilizes foam. The foam's action can conceal the base, so even if the area where the electron donor is attached is dark in color, such as black or brown, the colored area can be clearly seen. The foaming agent is not particularly limited as long as it is a conventionally known one, and examples thereof include polyoxyalkylene alkyl ethers such as polyoxyethylene lauryl ether and polyoxyethylene stearyl ether, polyoxyethylene sorbitan monolaurate, polyoxyethylene sorbitan tetraoleate, polyoxyethylene sorbitan monopalmitate, polyoxyethylene sorbitan monostearate, dioctyl sulfosuccinate, lauryl hydroxysulfobetaine, dodecylbenzenesulfonate, polyoxyethylene alkylamine, alkyl betaine, cetyltrimethylammonium chloride, 2-alkyl-N-carboxymethyl- Examples of the alkyl ether include N-hydroxyethyl imidazolinium betaine, polyoxyalkylene branched decyl ether, polyoxyalkylene branched decyl ether, polyoxyalkylene alkyl ether sulfate, triethanolamine lauryl sulfate, lauroyl sarcosine salt, amine oxides such as dimethyl lauryl amine oxide and dihydroxyethyl lauryl amine oxide, alkyl benzene sulfonic acid, linear alkyl benzene sulfonate, polyoxyethylene sorbitan trioleate, polyoxyethylene alkyl ether sulfate, alkyl alkanolamide, polyoxyalkylene alkenyl ether, and polyoxyethylene stearylamine.

[0027] However, because the foaming agent is easily oxidized by the bleaching component of Solution B (described below), the bleaching component acts on both the coloring component and the foaming agent. As a result, the addition of a foaming agent delays the oxidation reaction of the bleaching component to the foaming agent by the time required for the oxidation reaction of the bleaching component to the foaming agent, which tends to prolong the decolorization time (visualization time) of areas other than the stained area. Therefore, it is preferable to use a foaming agent that, when mixed with the bleaching component and the coloring component at the same concentration and ratio, results in a decolorization time of the electron-donating coloring agent of 30 minutes or less. Specifically, it is preferable to use an aqueous solution containing 1.0 wt% of the electron-donating coloring component and foaming agent in a 1:1 ratio with an aqueous solution containing 1.0 wt% of the bleaching component, which results in a decolorization time of the electron-donating coloring component of 30 minutes or less. This allows for improved visibility without significantly slowing the decolorization time (visualization time) of areas other than the stained area compared to conventional visualization kits. Furthermore, foaming agents such as amine oxides, alkylbenzene sulfonates, polyoxyalkylene alkyl ether sulfates, lauroyl sarcosine salts, and alkyl betaines are not easily oxidized by bleaching components (they have no electron-donating properties), and therefore do not adversely affect the decolorization time (visibility time) of areas other than the stained areas, regardless of their relationship with the electron-donating colorants. The foaming agent can also be blended in only liquid B or in both liquids A and B. In this case, it will not be oxidized by the bleaching component of liquid B and can be stored stably in the discharge container for a long period of time. These foaming agents can be used alone or in combination of two or more kinds, and the amount of the foaming agent blended is preferably 0.5 to 8.0% by weight, with the upper limit of the blended amount being the critical micelle concentration.

[0028] The "critical micelle concentration" refers to the concentration at which a surfactant begins to form micelles in Liquid A. Therefore, below the critical micelle concentration, the surfactant does not fully form micelles in Liquid A, but above the critical micelle concentration of 8.0% by weight, the surfactant forms micelles in Liquid A. Increasing the foaming agent concentration above the critical micelle concentration does not significantly affect the foaming effect.

[0029] The solvent may be water such as ion-exchanged water, pure water, or tap water, or an organic solvent. Examples of the organic solvent include alcohols such as methanol, ethanol, propanol, butanol, pentanol, hexanol, and benzyl alcohol, and diols or triols such as glycerin, diglycerin, triglycerin, ethylene glycol, diethylene glycol, triethylene glycol, propylene glycol, and polyethylene glycol, used alone or in combination. The amount of the organic solvent added is preferably 60 to 99.99% by weight.

[0030] Furthermore, a quaternary ammonium salt can be contained in Solution A or Solution B as an elimination aid. Examples of quaternary ammonium salts include tetramethylammonium chloride, tetrabutylammonium chloride, methylbenzethonium chloride, distearyldimethylammonium chloride, cetylpyridinium chloride, alkyltrimethylammonium chloride, octyltrimethylammonium chloride, decyltrimethylammonium chloride, dodecyldimethylbenzylammonium chloride, dodecyltrimethylammonium chloride, tetradecyltrimethylammonium chloride, hexadecyltrimethylammonium chloride, cetyltrimethylammonium chloride, stearyltrimethylammonium chloride, benzyltrimethylammonium chloride, benzyltriethylammonium chloride, dialkyldimethylammonium chloride, tetramethylammonium hydroxide, benzalkonium bromide, cetrimonium bromide, domiphen bromide, alkyltrimethylammonium bromide, hexadecyltrimethylammonium bromide, and hexadecyltrimethylammonium bromide, but are not limited thereto. Preferably, benzalkonium chloride, benzethonium chloride, and dodecyltrimethylammonium chloride can be used. Furthermore, a thickener such as synthetic hectorite can be added to enhance adhesion. The addition of the erasing aid is preferably 10 ppm to 10 wt %.

[0031] As shown in the data in the Examples below, when a cationic surfactant, a quaternary ammonium salt, is added as an erasing aid, an electron-donating colorant sprayed onto a surface to which no electron donor is attached quickly disappears. The mechanism of action of the quaternary ammonium salt in the present invention is thought to be as follows.

[0032] The quaternary ammonium salt cation shown in the upper part of Figure 2 has a hydrophilic group and a hydrophobic group at both ends of the molecule, and forms a micelle with hydrophilic groups on the outside and hydrophobic groups on the inside, as shown in the lower part of Figure 2. Dye X and bleaching component Y are captured inside this micelle, resulting in localized concentration and accelerating bleaching.

[0033] Furthermore, known thickeners can be added to Solution A or Solution B to enhance adhesion. Examples of known thickeners include water-swellable silicate particles, alginate, carboxymethylcellulose, gum arabic, arginine polymer, sodium alginate, alginate propylene glycol, ethylcellulose, xanthan gum, carrageenan, pectin, gellan gum, methylcellulose, polyvinylpyrrolidone resin, butyral resin, acrylic resin, and cellulose nanofiber. It is particularly desirable that the thickener added to Solution A or Solution B be a thickener that gels with calcium ions. Examples of thickeners that gel with calcium ions include water-swellable silicate particles, alginate, carrageenan, LM pectin, and LA gellan gum. The thickeners that gel with calcium ions react with the calcium ions contained in urine components to form a gel, thereby enhancing adhesion to urine components in particular. This prevents dripping, for example, when spraying a liquid onto urine components adhering to a wall. Furthermore, water-swellable silicate particles are more desirable because they have high thixotropy, and the pressure exerted when the liquid passes through the fine holes in the nozzle during spraying significantly reduces the viscosity of the liquid, thereby improving the liquid diffusion during spraying. The amount of water-swellable silicate particles added is preferably 0.1 to 20% by weight.

[0034] The water-swellable silicate particles are a general term for a group consisting of smectite, bentonite, vermiculite, and mica, and the smectite is a general term for a group consisting of montmorillonite, a dioctahedral hydrous layered silicate mineral, and hydrite, nontronite, saponite, hectorite, sauconite, and stevensite, which have a structure similar to montmorillonite. The water-swellable silicate particles may be natural or synthetic.

[0035] The alginate is not particularly limited as long as it is a salt of alginic acid, but is preferably a monovalent cation salt of alginic acid, such as the sodium salt (sodium alginate), potassium salt (potassium alginate), or ammonium salt (ammonium alginate).

[0036] Furthermore, shelf life can be improved by adding a known antiseptic / antifungal agent to Solution A or Solution B. Known antiseptic / antifungal agents that can be used in the present invention include chloromethylisothiazolinone, methylisothiazolinone, phenol, sodium omadine, sodium pentachlorophenol, 1,2-benzisothiazolin-3-one, 2,3,5,6-tetrachloro-4(methylsulfonyl), pyridine, sodium benzoate, alkali metal salts of benzoic acid, sorbic acid, and dehydroacetic acid, benzimidazole compounds, 1,3-dimethylol-5,5-dimethylhydantoin, 1- or 3-monomethylol-5,5-dimethylhydantoin, 3-iodo-2-propynyl butylcarbamate, and 1,3-butylene glycol, which can be used alone or in combination, and preferably in an amount of 0.001 to 10% by weight.

[0037] Solution B contains bleaching components consisting of an electron acceptor and a solvent. The electron acceptor is an oxidizing agent that oxidizes a counter substance by accepting electrons. It can be selected from the group consisting of metal hypochlorites such as sodium hypochlorite, metal chlorates, hydrogen peroxide, metal perborates, metal percarbonates, metal peroxides, acyl peroxides, benzoyl peroxide, peracetic acid, ozone, sodium bisulfate, nitrogen dioxide, chlorine, chlorine dioxide, azodicarbonamide, sodium sulfite, sodium metabisulfite, percarbonates, tetraacetyleneethylenediamine, metal peroxymonosulfates, and mixtures thereof. The amount of the electron acceptor added is preferably 10 ppm to 20 wt%, more preferably 100 ppm to 6 wt%. Furthermore, a thickener such as synthetic smectite can be added to Solution B to enhance adhesion. The thickeners contained in Solution B can be the same as those described above, and the amount added is preferably 0.01 to 20 wt%.

[0038] In this embodiment, it is preferable to sell the liquids A and B as a kit filled in separate foam-dispensing containers. Any conventionally known foam-dispensing container can be used, such as a foamer pump or squeeze container configured to mix and foam liquids A and B with pressurized air, and then pass the foam through a sheet-like porous body (mesh) to discharge the resulting uniform, fine foam from the tip of a nozzle; or a mist dispenser or trigger-type spray container that discharges the cleaning solution in a fine, uniform foam state through a nozzle with a specific diameter.

[0039] An example of how to use the electron donor visualization kit of the present invention will be described below with reference to FIG. Figure 3 (1) shows a surface with urine components attached. Here, the areas where urine components are attached are shown surrounded by lines, but in reality they are not visible to the naked eye. Generally, human and animal urine components contain urea, creatinine, sodium hydrogen phosphate, ammonium chloride, sodium nitrite, potassium phosphate, calcium ions, etc.

[0040] As shown in Figure 3 (2), Liquid B, which contains a bleaching component consisting of an electron acceptor and a solvent, is sprayed onto this surface. At the locations where urine components are attached, the bleaching component of Liquid B reacts with the urine components, reducing its bleaching ability. However, at other locations, the bleaching ability remains unchanged. This state is shown in (3). Next, as shown in (4), Liquid A, which contains a coloring component consisting of an electron-donating colorant and a solvent, and a foaming agent, is sprayed onto the surface. At the locations where urine components are attached, the bleaching ability of Liquid B, which was sprayed earlier, has decreased, so the coloring component is not decolorized and remains colored by Liquid A. However, at other locations, the bleaching ability of Liquid B has not decreased, so the coloring component of Liquid A is decolorized and becomes colorless.

[0041] As a result, as shown in Figure 3 (5), the areas where urine components are attached are stained with the remaining pigment of Liquid A, while the pigment of Liquid A is decolorized in other areas. This makes the areas where urine components are attached visible and possible to identify. Furthermore, the foaming agent contained in Liquid A causes foam to form when sprayed onto the urine components. As shown in Figure 4 (Example 1), the foam conceals the underlying surface, improving the visibility of the stained areas. The user can reliably remove the attached urine components by cleaning the areas where urine components are attached. In addition, the cleaning effect of the foaming agent can be expected, allowing for simultaneous cleaning of areas where electron donors are attached. Furthermore, the pigment of Liquid A is decolorized in areas other than those where urine components are attached, preventing deterioration of the appearance due to residual pigment of Liquid A. Furthermore, adding a quaternary ammonium salt as an elimination aid to Liquid A or B can accelerate the decolorization reaction and increase the rate at which Liquid A is decolorized by the reaction between Liquid A and Liquid B.

[0042] In Figure 3, liquid B is sprayed followed by liquid A, but liquids B and A may be sprayed almost simultaneously, or liquid A may be sprayed before liquid B. However, to ensure that the reaction between the urine components and liquid B proceeds more reliably, it is preferable to spray liquid B first and then liquid A, as shown in Figure 3. [Example]

[0043] [Table 4]

[0044] The foaming agents in the table are: sodium lauroyl sarcosine (Sarcosinate LN, manufactured by Nikko Chemicals Co., Ltd.); dimethyllaurinamine oxide (Unisafe A-LM, manufactured by NOF Corporation); sodium alkylbenzenesulfonate (Newlex R-25L, manufactured by NOF Corporation); sodium polyoxyethylene lauryl ether sulfate (Emal E-27C, manufactured by Kao Corporation); cetyltrimethylammonium chloride (Cortamin 60W, manufactured by Kao Corporation); lauryl betaine (Amphitol 20HD, manufactured by Kao Corporation); polyoxyethylene lauryl ether (DKS-NL-110, manufactured by Daiichi Kogyo Seiyaku Co., Ltd.); polyoxyethylene stearylamine (Nonion S-220, manufactured by NOF Corporation); and polyoxyethylene sorbitan monolaurate (Nonion K-230, manufactured by NOF Corporation).

[0045] Liquids A and B were prepared as shown in Table 4 and filled into foam dispenser containers. The solvent for both Liquids A and B was ion-exchanged water. Liquids A and B were sprayed sequentially onto black tiles to which the target substance had been attached and dried, and the visibility of the areas where the target component was attached and the decolorization speed (visualization speed) of the non-attached areas were evaluated and recorded in Table 4. The target component "urine" used was artificial urine containing urea, ammonium chloride, and calcium ions.

[0046] Regarding the evaluation criteria in Table 4, visibility refers to the visibility of the area where the target component is attached. If the area where the target component is attached is colored with a colorant compared to the area where it is not attached and the area where it is attached is clearly visible to the naked eye, it was evaluated as ◯; if the black color of the base is not concealed and it is difficult to see with the naked eye, it was evaluated as ×. The decolorization speed in areas other than the stained areas refers to the speed at which the colored components of Liquid A that have adhered to areas other than the stained areas are decolorized by the bleaching components of Liquid B. If the color disappears extremely quickly within 20 seconds, it is evaluated as ◎, and if the color disappears within 30 minutes, it is evaluated as 〇.

[0047] Comparative Example 1 in the table is a formulation without the addition of a foaming agent, while Examples 1-11 are formulations in which a foaming agent was added to either Solution A or Solution B. The foaming agents used in Examples 1-6 and 11 were sodium lauroyl sarcosinate, dimethyl lauryl amine oxide, sodium alkylbenzene sulfonate, sodium polyoxyalkylene alkyl ether sulfate, cetyl trimethyl ammonium chloride, and lauryl betaine, and are resistant to oxidation by bleaching components (no electron-donating properties). The foaming agents used in Examples 7-10 were those that, when mixed with the bleaching components and coloring components at the same concentrations, caused the electron-donating colorant to fade in 30 minutes or less. Figure 4 shows the results of the visibility test for Example 1 (left) and Comparative Example 1 (right). In Comparative Example 1, the colored areas were difficult to visually confirm due to the black color of the tile, while in Example 1, the adhesion areas could be clearly confirmed visually because the base was concealed by the concealing properties of the foam derived from the foaming agent. Note that, although not shown in Figure 4, the results for Examples 2-11 also showed visibility equivalent to that of Example 1. In addition, in Examples 7-9, the decolorization speed of areas other than the soiled areas was good, within 30 minutes, and was therefore evaluated as ◯. In addition, in Examples 1-6, which contained a specific foaming agent, the decolorization speed of areas other than the soiled areas was the same as that of Comparative Example 1, and showed better results. Furthermore, in Example 10, in which benzalkonium chloride was blended as an erasing aid, the decolorization speed in areas other than the soiled areas was improved compared to Example 7, in which the erasing aid was not blended.

[0048] As can be seen from these results, adding a foaming agent to either liquid A or liquid B can improve the visibility of the colored areas. Furthermore, by using a foaming agent that, when mixed with the bleaching component and coloring component at the same concentration, results in a bleaching time of the electron-donating colorant of 30 minutes or less, visibility can be improved without significantly slowing the bleaching time (visualization time) of areas other than the stain compared to conventional visualization kits. Amine oxides, alkylbenzene sulfonates, polyoxyalkylene alkyl ether sulfates, alkyltrimethylammonium salts, lauroyl sarcosinates, and alkyl betaines are particularly preferred, as the incorporation of these foaming agents improves visibility without slowing the erasing rate. These foaming agents are unlikely to be oxidized by the bleaching component, so the oxidation reaction by the bleaching component is concentrated on the coloring component, without adversely affecting the bleaching time (visualization time of the electron-donating agent).

[0049] The present invention has been described above in relation to the embodiment that is considered to be the most practical and preferable at this time. However, the present invention is not limited to the embodiment disclosed in the specification of this application, and can be modified as appropriate within the scope of the claims and the gist or idea of ​​the invention that can be read from the specification as a whole. It should be understood that electron donor visualization kits and electron donor visualization methods incorporating such modifications are also included within the technical scope. [Explanation of symbols]

[0050] 1 1st container 2 Second container 3 Suction tube

Claims

1. An electron donor visualization kit comprising a combination of a liquid A containing a coloring component consisting of an electron donor colorant and a solvent, and a liquid B containing a bleaching component consisting of an electron acceptor and a solvent, wherein either or both of the liquid A and the liquid B contain a foaming agent.

2. 2. The electron donor visualization kit according to claim 1, wherein the foaming agent is one that causes the electron donor colorant to fade in 30 minutes or less when mixed with the bleaching component and the coloring component in the same concentration and ratio.

3. 3. The electron donor visualization kit of claim 1, wherein the foaming agent is selected from the group consisting of amine oxides, alkylbenzene sulfonates, polyoxyalkylene alkyl ether sulfates, alkyltrimethylammonium salts, lauroyl sarcosinates, alkyl betaines, and mixtures thereof.

4. 3. The electron donor visualization kit according to claim 1, wherein the electron donor is a compound containing at least one nucleophilic atomic group.

5. The electron donor visualization kit of claim 4, wherein the nucleophilic atomic group is any one selected from the group consisting of C=C, CN, C=N, -NH2, -NH-, -SH, and combinations thereof.

6. 6. The electron donor visualization kit according to claim 1, wherein the solution A or the solution B contains a quaternary ammonium salt.

7. 6. The electron donor visualization kit according to claim 1, wherein the solution A or B contains a thickener that gels with calcium ions.

8. 6. The electron donor visualization kit according to claim 1, wherein the liquid A and the liquid B are filled in separate foam-dispensing containers.

9. An electron donor visualization kit comprising a combination of liquid A containing a coloring component consisting of an electron donor colorant and a solvent and liquid B containing a bleaching component consisting of an electron acceptor and a solvent, and a method for visualizing an electron donor, comprising spraying the electron donor visualization kit, wherein either or both of liquid A and liquid B contain a foaming agent, onto a surface to which an electron donor has adhered, to make the area where the electron donor has adhered visible.

10. The electron donor visualization kit according to claim 9, characterized in that the foaming agent used is one that, when mixed with the bleaching component and the coloring component in the same concentration and ratio, causes the electron donor colorant to fade in 30 minutes or less.

11. 11. The method for visualizing an electron donor according to claim 9, wherein the foaming agent is selected from the group consisting of amine oxides, alkylbenzene sulfonates, polyoxyalkylene alkyl ether sulfates, alkyltrimethylammonium salts, lauroyl sarcosinates, alkyl betaines, and mixtures thereof.

12. 11. The method for visualizing an electron donor according to claim 9, wherein the electron donor is a compound containing at least one nucleophilic atomic group.

13. The electron donor visualization method according to claim 12, characterized in that the nucleophilic atomic group is any one selected from the group consisting of C=C, CN, C=N, -NH2, -NH-, -SH, and combinations thereof.

Images