Cleaning agent composition, spray bottle type cleaning agent, wet wiper, and method for cleaning the surface of an article.

Abstract

To provide a detergent composition which has excellent cleaning force, is suppressed in damages onto an acryl resin surface, and hardly leaves a wiped mark.SOLUTION: A detergent composition which contains quaternary ammonium salt as a component (a), an amphoteric surface active agent as a component (b), alkyl glucoside as a component (c), and ethanol as a component (d) is such that: a content of the component (a) is 0.03-0.06 mass%; a content of the component (b) is 0.04-0.08 mass%; a content of the component (c) is 0.08-0.12 mass%; a content of the component (d) is 3-20 mass%; the total content of the component (a),(b), (c) is 0.25 mass% or less; and a relation of the content of the component (c)>the content of the component (b)>the content of the component (a), and a relation of the content of the (c) / the total content of the component (a), (b)=0.8-1.5 are satisfied.SELECTED DRAWING: None

Description

Technical Field

[0001] The present invention relates to a detergent composition, a spray bottle-type detergent, a wet wiper, and a method for cleaning the surface of an article.

Background Art

[0002] Conventionally, in restaurants such as restaurants and izakayas, ethanol preparations and the like have been used for the purpose of disinfecting bacteria and viruses.

[0003] Furthermore, in recent years, due to the influence of the spread of the so-called novel coronavirus (SARS-CoV2), in restaurants and the like, for infection prevention measures, every time people change, acrylic partitions, tables, chairs, menu books, touch panels, table bells, etc. Disinfection of articles such as is recommended by industry group guidelines and the like. Therefore, for these articles, disinfection by spraying an ethanol preparation or a detergent composition from a spray bottle or the like and wiping it off, or by wiping it with a wet wiper or the like, is being carried out more frequently than ever.

[0004] For example, in Patent Document 1, it has been proposed to spray a detergent composition with a spray bottle or impregnate a wet wiper to wipe off dirt adhering to an article, and remove oil dirt and dirt caused by tobacco smoke.

Prior Art Documents

Patent Documents

[0005]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0006] Acrylic partitions used for infection control measures are known to be damaged by ethanol, causing the surface to whiten, and reducing its strength, making it more prone to breakage. On the other hand, cleaning agents containing surfactants that do not contain ethanol take a long time to dry, making them difficult to work with, and depending on the concentration of the surfactant, they can leave streaks, resulting in aesthetic problems.

[0007] The present invention aims to provide a cleaning composition that has excellent cleaning power, suppresses damage to acrylic resin surfaces, and leaves minimal streaks. [Means for solving the problem]

[0008] The inventors diligently conducted research to solve the above-mentioned problems. As a result, they found that by blending a quaternary ammonium salt, an amphoteric surfactant, an alkyl glucoside, and ethanol into a cleaning agent composition, and setting the content of these components within a specific range and relationship, it is possible to obtain a cleaning agent composition that has excellent cleaning power, suppresses damage to the acrylic resin surface, and leaves minimal streaks, even at a low ethanol concentration of 3 to 20% by mass. The present invention was completed by further research based on these findings.

[0009] In other words, the present invention provides inventions in the following embodiments. Item 1. The product comprises a quaternary ammonium salt as component (a), an amphoteric surfactant as component (b), an alkyl glucoside as component (c), and ethanol as component (d). The content of component (a) is 0.03 to 0.06% by mass, The content of component (b) is 0.04 to 0.08% by mass, The content of component (c) is 0.08 to 0.12% by mass, The content of component (d) is 3 to 20% by mass, The total content of the above components (a), (b), and (c) is 0.25% by mass or less. A detergent composition that satisfies the relationship: the content of component (c) > the content of component (b) > the content of component (a), and the relationship: the content of component (c) / the total content of components (a) and (b) = 0.8 to 1.5. Item 2. The detergent composition according to item 1, further comprising a pH buffer as component (e). Item 3. The pH buffer is at least one selected from the group consisting of glycine, phosphoric acid, phthalic acid, citric acid, succinic acid, maleic acid, acetic acid, malic acid, tartaric acid, lactic acid, gluconic acid, carbonic acid, boric acid, trishydroxymethylaminomethane and hydroxyethylpiperazineethanesulfonic acid and their salts. A detergent composition according to item 2, wherein the pH is 8 to 10. Item 4. The detergent composition according to any one of items 1 to 3, wherein the quaternary ammonium salt is at least one selected from the group consisting of alkyltrimethylammonium salt, dialkyldimethylammonium salt, and alkyldimethylbenzylammonium salt. Item 5. The detergent composition according to any one of items 1 to 4, wherein the amphoteric surfactant is an amine oxide type surfactant. Item 6. A cleaning agent composition according to any one of items 1 to 5, used for cleaning an acrylic resin surface. Item 7. A spray bottle type cleaning agent in which a cleaning agent composition described in any one of items 1 to 6 is filled into a spray bottle. Item 8. A wet wipe comprising a fibrous sheet containing a cleaning agent composition as described in any one of items 1 to 6. Item 9. A method for cleaning the surface of an article, comprising bringing a cleaning agent composition described in any one of items 1 to 6 into contact with the surface of the article to be cleaned. [Effects of the Invention]

[0010] According to the present invention, it is possible to provide a cleaning agent composition that has excellent cleaning power despite having a low ethanol concentration of 3 to 20% by mass, while suppressing damage to the acrylic resin surface and leaving minimal streaks. Furthermore, according to the present invention, it is also possible to provide a spray bottle type cleaning agent, a wet wiper, and a method for cleaning the surface of an article using the cleaning agent composition. [Modes for carrying out the invention]

[0011] The following describes in detail the cleaning agent composition, spray bottle type cleaning agent, wet wiper, and method for cleaning the surface of an article according to the present invention. In this specification, numbers connected by "~" represent a numerical range that includes the numbers before and after "~" as the lower limit and upper limit, respectively. If multiple lower limits and multiple upper limits are listed separately, any lower limit and upper limit may be selected and connected by "~".

[0012] The detergent composition of the present invention comprises a quaternary ammonium salt as component (a), an amphoteric surfactant as component (b), an alkyl glucoside as component (c), and ethanol as component (d). In the detergent composition of the present invention, the content of component (a) is 0.03 to 0.06% by mass, the content of component (b) is 0.04 to 0.08% by mass, the content of component (c) is 0.08 to 0.12% by mass, and the content of component (d) is 3 to 20% by mass. Furthermore, in the detergent composition of the present invention, the total content of components (a), (b), and (c) is 0.25% by mass or less, satisfying the relationship: content of component (c) > content of component (b) > content of component (a), and satisfying the relationship: content of component (c) / total content of components (a) and (b) = 0.8 to 1.5. The cleaning agent composition of the present invention satisfies all of these characteristics, thereby exhibiting excellent cleaning power while suppressing damage to the acrylic resin surface and exhibiting the characteristic of leaving fewer streaks.

[0013] The detergent composition of the present invention will be described in detail below.

[0014] The detergent composition of the present invention contains a quaternary ammonium salt as component (a). The quaternary ammonium salt is effective for imparting antibacterial and antiviral performance to the detergent composition. The quaternary ammonium salt is not particularly limited as long as it can be formulated in the detergent composition. Specific examples include alkyltrimethylammonium salts, dialkyldimethyammonium salts, and alkyldimethylbenzylammonium salts. Among these, benzalkonium chloride and dimethyldimethylammonium chloride are particularly preferred. The quaternary ammonium salt contained in the detergent composition of the present invention may be one type or two or more types.

[0015] In the detergent composition of the present invention, the content of the quaternary ammonium salt as component (a) is 0.03 to 0.06% by mass.

[0016] The detergent composition of the present invention contains an amphoteric surfactant as component (b). An amine oxide type surfactant is preferable as the amphoteric surfactant, and it is effective for imparting antiviral performance to the detergent composition. The amine oxide type surfactant preferably has one hydrocarbon group having 8 to 20 carbon atoms. Specific examples of the amine oxide type surfactant include alkyldimethylamine oxides such as decyldimethylamine oxide, lauryldimethylamine oxide, myristyldimethylamine oxide, and lauric acid amidopropyldimethylamine oxide, and fatty acid amidopropyldimethylamine oxide. The amphoteric surfactant contained in the detergent composition of the present invention may be one type or two or more types.

[0017] In the detergent composition of the present invention, the content of the amphoteric surfactant as component (b) is 0.04 to 0.08% by mass.

[0018] The detergent composition of the present invention contains alkyl glucoside as component (c). The alkyl glucoside is effective for imparting antiviral performance to the detergent composition. The alkyl glucoside preferably has an average carbon number of the alkyl group of 8 to 16, more preferably 8 to 14, and the average degree of condensation of the glycoside is preferably 1 to 2, more preferably 1.1 to 1.8. The alkyl glucoside contained in the detergent composition of the present invention may be one type or two or more types.

[0019] In the detergent composition of the present invention, the content of alkyl glucoside as component (c) is 0.08 to 0.12% by mass.

[0020] The detergent composition of the present invention contains ethanol as component (d). In the detergent composition of the invention, the content of ethanol as component (d) is 3 to 20% by mass. In the present invention, from the viewpoint that even when the ethanol concentration is low, a detergent composition can be obtained that has excellent detergency while suppressing damage to the acrylic resin surface and is less likely to leave wiping marks, the content of ethanol is preferably 3 to 15% by mass, more preferably 4 to 12% by mass, still more preferably 5 to 11% by mass, and particularly preferably 6 to 10% by mass. In addition, the addition of ethanol is a component necessary for improving the drying speed and exerting bactericidal power.

[0021] The detergent composition of the present invention optionally contains a pH buffer as component (e). The pH buffer is effective in stabilizing the liquid properties of the detergent composition and ensuring cleaning power due to its weak alkalinity by buffering against pH changes. Specific examples of pH buffers include at least one selected from the group consisting of glycine, phosphoric acid, phthalic acid, citric acid, succinic acid, maleic acid, acetic acid, malic acid, tartaric acid, lactic acid, gluconic acid, carbonic acid, boric acid, trishydroxymethylaminomethane and hydroxyethylpiperazineethanesulfonic acid and their salts. The detergent composition of the present invention may contain one or more pH buffers. Carbonates are particularly preferred as pH buffers, and a combination of sodium carbonate and sodium bicarbonate is even more preferred.

[0022] Furthermore, the cleaning agent composition of the present invention has a total content of component (a), component (b), and component (c) of 0.25% by mass or less. In addition, the cleaning agent composition of the present invention must satisfy the relationship: content of component (c) > content of component (b) > content of component (a), and the relationship: content of component (c) / total content of components (a) and (b) = 0.8 to 1.5. By satisfying all of the above requirements, the cleaning agent composition of the present invention can exhibit excellent cleaning power, suppress damage to the acrylic resin surface, and leave minimal streaks.

[0023] From the viewpoint of more favorably exhibiting the effects of the present invention, the total content of component (a), component (b), and component (c) is preferably 0.10 to 0.25% by mass, more preferably 0.12 to 0.25% by mass, and even more preferably 0.15 to 0.25% by mass.

[0024] Furthermore, from the viewpoint of exhibiting the effects of the present invention more favorably, the ratio of the content of component (c) to the total content of components (a) and (b) is particularly preferably 0.90 to 1.30.

[0025] The detergent composition of the present invention is an aqueous detergent composition containing components (a), (b), (c), (d), and optionally component (e) in the predetermined range of content. That is, the detergent composition of the present invention contains water. The water content is not particularly limited as long as it does not hinder the effect of the detergent composition of the present invention, but is preferably 70% by mass or more, more preferably 80% by mass or more, and even more preferably 85% by mass or more.

[0026] The detergent composition of the present invention may further contain, to the extent that it does not impair the effects of the present invention, components (a), (b), (c), (d), water, and optionally component (e), as well as additives. Examples of additives include chelating agents, solubilizers, dyes, fragrances, and preservatives. When the detergent composition of the present invention contains additives, there may be one type of additive or two or more types. When the detergent composition of the present invention contains additives, the content of each additive is preferably 0.5% by mass or less, and the total content of the additives is preferably 1% by mass or less.

[0027] The pH of the detergent composition of the present invention is not particularly limited, as long as it does not impair the effects of the present invention, but is preferably 8.0 to 10.0, and more preferably 9.0 to 10.0.

[0028] The cleaning agent composition of the present invention preferably possesses disinfecting properties. The target of disinfection is not limited to specific bacteria, but includes potentially pathogenic bacteria such as Escherichia coli, Salmonella, Pseudomonas aeruginosa, and Staphylococcus aureus.

[0029] Furthermore, the cleaning agent composition of the present invention preferably possesses antiviral properties. The antiviral target is not limited to specific viruses. For example, viruses that have an envelope structure and may be pathogenic, such as the novel coronavirus (SARS-CoV-2) and influenza viruses, are suitable targets.

[0030] Next, a cleaning method using the cleaning agent composition of the present invention will be described. The cleaning method can be broadly categorized into two forms, based on the method of applying the cleaning agent composition to the object to be cleaned.

[0031] One first method of using the cleaning agent composition of the present invention is to fill a spray bottle with the cleaning agent composition to create a spray bottle type cleaning agent, spray the cleaning agent composition onto the surface of the object to be cleaned, and then wipe it off with a cloth or the like. The cleaning agent composition may be brought into contact with the surface of the object and wiped off immediately, but it is preferable to leave it for 30 seconds or more, more preferably 1 minute or more, and even more preferably 2 minutes or more before wiping it off. There is no particular upper limit to the waiting time, but for example, it is 30 minutes or less, preferably 5 minutes or less, and even more preferably 3 minutes or less.

[0032] A second method of using the cleaning agent composition of the present invention is, for example, to make a wet wipe by impregnating a fiber sheet with the cleaning agent composition, and then wiping the surface of the object to be cleaned with the wet wipe.

[0033] Examples of articles to be cleaned with the cleaning agent composition of the present invention include articles with hard surfaces. Specifically, these include tables, chairs, cooking utensils, kitchen equipment, food manufacturing equipment, home appliances, toilets, and window glass. Examples of materials for the articles to be cleaned include stainless steel, cast iron, plated steel sheets, aluminum, brass, ceramics, and plastics. In recent years, acrylic sheets have been frequently used, especially for infection control measures, but it is known that the surface of acrylic resin can turn white when exposed to solvents such as ethanol. The cleaning agent composition of the present invention suppresses the whitening of the acrylic resin surface and leaves fewer streaks. Therefore, the cleaning agent composition of the present invention is particularly suitable for cleaning acrylic resin surfaces. It should be noted that the cleaning agent composition of the present invention can be used to clean other articles as well as acrylic resin surfaces. [Examples]

[0034] The present invention will be described in detail below with reference to examples and comparative examples. Unless otherwise specified, the values ​​of each component in Table 1 represent mass percent.

[0035] The details of each component used in the preparation of the detergent composition are as follows: Ingredient (a): Benzalkonium chloride (product name Cation G-50, manufactured by Sanyo Chemical Industries, Ltd.) Ingredient (b): Alkylamine oxide (product name Anhitoll 20N, manufactured by Kao Corporation) Ingredient (b): Fatty acid amidopropylamine oxide (product name: Paionin C-151, manufactured by Takemoto Oil Co., Ltd.) Ingredients (c): Alkyl glucoside (product name Mydol 12, manufactured by Kao Corporation) Ingredients (d): Ethanol (product name: Fermented Alcohol 95% Grade 1, manufactured by Godo Shusei Co., Ltd.) Ingredients (e): Sodium carbonate (product name: Dense Ash, manufactured by Tokuyama Central Soda Co., Ltd.) Ingredients (e): Sodium bicarbonate (product name: Sodium Bicarbonate, manufactured by AGC Inc.)

[0036] <Preparation of detergent composition> At room temperature (25°C), the components were mixed to obtain the compositions shown in Table 1, thereby preparing the detergent compositions for Examples 1-4 and Comparative Examples 1-8.

[0037] [Cleaning power] An acrylic sheet measuring 160mm (length) x 180mm (width) x 2mm (thickness) was thoroughly touched by hand to allow sebum to adhere to the surface. Then, a cleaning composition was sprayed three times (3ml), lightly wiped with a cloth, and the surface of the acrylic sheet was observed to evaluate the cleaning power according to the following criteria. The results are shown in Table 1. ○: The stains were so well removed that they were no longer visible. ×: A small amount of dirt remains.

[0038] [Damage to the surface of acrylic resin] An acrylic sheet measuring 75 mm (length) x 20 mm (width) x 2 mm (thickness) was immersed in a cleaning agent composition and left to stand at 50°C for 72 hours. The surface of the acrylic sheet was observed and evaluated according to the following criteria. The results are shown in Table 1. ○: No change △: Changes are visible on the surface. ×: The surface is whitened.

[0039] [Drying Speed] A cleaning composition was sprayed once (1 ml) onto the surface of an acrylic sheet measuring 160 mm (length) x 180 mm (width) x 2 mm (thickness), lightly wiped with a cloth, and the drying speed was evaluated according to the following criteria. The results are shown in Table 1. ○: Dries quickly △: It dries, but it's a little slow. ×: Does not dry easily

[0040] [Remaining wipe marks] An acrylic sheet measuring 160mm (length) x 180mm (width) x 2mm (thickness) was thoroughly touched by hand to allow skin oils to adhere to the surface. Then, a cleaning composition was sprayed three times (3ml), lightly wiped with a cloth, and the remaining wipe marks were evaluated according to the following criteria. The results are shown in Table 1. ○: Almost no wiping marks visible ×: Wipe marks are visible.

[0041] [Disinfecting power] (Bactericidal effect against E. coli) Escherichia coli NBRC3301 was inoculated into SCD broth medium and cultured at 30°C for 24 hours to obtain a bacterial suspension. Next, the washing agent composition and the bacterial suspension were mixed in a 9:1 (volume) ratio, and after contact for 1 minute, 100 μl of the mixture was transferred to 900 μl of SCDLP medium and cultured at 35°C for 48 hours. After incubation, the viability of the bacteria was measured by turbidity. The evaluation criteria are as follows. The results are shown in Table 1. ○: The E. coli bacteria have been killed. ×: The E. coli bacteria were not killed.

[0042] (Bactericidal effect against Staphylococcus aureus) Staphylococcus aureus (NBRC 12732) was inoculated into SCD broth medium and cultured at 30°C for 24 hours to obtain a bacterial suspension. Next, the washing agent composition and the bacterial suspension were mixed in a 9:1 (volume) ratio, and after contact for 1 minute, 100 μl of the mixture was transferred to 900 μl of SCDLP medium and cultured at 35°C for 48 hours. After incubation, bacterial viability was measured by turbidity. The evaluation criteria are as follows. The results are shown in Table 1. ○: The E. coli bacteria have been killed. ×: The E. coli bacteria were not killed.

[0043] [Evaluation of the inactivation effect of the novel coronavirus] The evaluation of the inactivation effect against the novel coronavirus is based on the viral infectivity titer measured using TCID. 50 The evaluation was performed by measurement using a specific method. The SARS-CoV-2 JPN / TY / WK-521 strain (hereinafter referred to as "SARS-CoV-2") was used as the test virus. In addition, African green monkey kidney-derived cell lines (Vero E6 / TMPRSS2 cells) that overexpressed the serine protease TMPRSS2 were used as host cells. Vero E6 / TMPRSS2 cells suspended in Dulbecco's modified Eagle's medium (DMEM) supplemented with 5% fetal bovine serum and 1 mg / ml G418 were dispensed at 0.1 mL into each well of a 96-well microplate, cultured overnight at 37°C and 5% CO2, and used as monolayer culture cells. It should be noted that while NITE (National Institute of Technology and Evaluation) has published information on effective surfactants, it is important to verify them in actual mixed systems because surfactants form mixed micelles.

[0044] (Measurement of infectious titer) The virus solution used for the test was SARS-CoV-2 log 10 TCID 50A suspension prepared to have a concentration of 8 / ml was used. 0.03 ml of the test virus solution was added to 0.03 ml of each composition and sensitized at room temperature for 1 minute. Then, 0.54 ml of DMEM (DMEM / F2 / G418) containing 2% fetal bovine serum and 1 mg / ml G418 was added to this solution to prepare the test solution. The test solution was further serially diluted 10-fold using DMEM / F2 / G418. 0.1 ml of each of these serially diluted solutions was inoculated into four wells and cultured at 37°C under 5% CO2 conditions for 3 days. After culturing, the presence or absence of cytopathic changes was determined, and the viral infectivity titer (TCID) was calculated. 50 The infectious titer (Δlog / ml) was calculated using the Reed-Muench method. The difference (Δlog) from the infectious titer measured using phosphate buffer was used as a control. 10 TCID 50 The virus inactivation effect of each test solution was evaluated using the following method ( / ml). The evaluation criteria are as follows. The results are shown in Table 1. ○: Difference of 4 or more from the control group's infectious titer.

[0045] [Table 1]

[0046] In Table 1, "-" indicates that no evaluation was performed.

[0047] As shown in Table 1, the detergent compositions of Examples 1 to 5 contain a quaternary ammonium salt as component (a), an amphoteric surfactant as component (b), an alkyl glucoside as component (c), and ethanol as component (d), with a content of 0.03 to 0.06% by mass for component (a), a content of 0.04 to 0.08% by mass for component (b), a content of 0.08 to 0.12% by mass for component (c), and a content of 3 to 20% by mass for component (d). The total content of components (a), (b), and (c) is 0.25% by mass or less, satisfying the relationship: content of component (c) > content of component (b) > content of component (a), and satisfying the relationship: content of component (c) / total content of components (a) and (b) = 0.8 to 1.5. The cleaning agent compositions of Examples 1 to 5 exhibited excellent cleaning power, and furthermore, minimized damage to the acrylic resin surface, leaving minimal streaks. Additionally, the cleaning agent compositions of Examples 1 to 4 had a fast drying speed and excellent disinfecting power. Furthermore, using the cleaning agent composition of Example 2 as a representative example, an antiviral evaluation against the novel coronavirus (SARS-CoV-2) revealed that it possessed antiviral properties.

[0048] In contrast, the cleaning agent compositions of Comparative Examples 1 to 8 did not satisfy the composition of the present invention. The cleaning agent compositions of Comparative Examples 1, 3, 6, and 7 had inferior cleaning power. Furthermore, the cleaning agent composition of Comparative Example 8 damaged the acrylic resin surface. In addition, the cleaning agent compositions of Comparative Examples 2 to 6 left streaks. Normally, turbidity occurs after 24 hours in the measurement of the disinfecting effect, but in Comparative Example 6, it was clear after 24 hours, and turbidity was observed after 48 hours. This suggests that the quaternary ammonium salt exerted disinfecting power and reduced the initial number of bacteria, but could not completely kill them. From this, it is considered that the present cleaning agent composition exhibited high disinfecting power and cleaning power while suppressing damage to the acrylic resin surface due to the synergistic effect of the quaternary ammonium salt and ethanol.

Claims

1. The product comprises a quaternary ammonium salt as component (a), an amphoteric surfactant as component (b), an alkyl glucoside as component (c), and ethanol as component (d). The aforementioned quaternary ammonium salt is alkyldimethylbenzylammonium salt, The content of component (a) is 0.03 to 0.05% by mass, The content of component (b) is 0.04 to 0.08% by mass, The content of component (c) is 0.08 to 0.12% by mass, The content of component (d) is 3 to 20% by mass, The total content of the above components (a), (b), and (c) is 0.25% by mass or less. The relationship that the content of component (c) > the content of component (b) > the content of component (a) is satisfied, and the relationship that the content of component (c) / the total content of components (a) and (b) = 0.8 to 1.5 is satisfied, A detergent composition having a pH of 9.0 to 10.

0.

2. The detergent composition according to claim 1, further comprising a pH buffering agent as component (e).

3. The pH buffering agent is at least one selected from the group consisting of glycine, phosphoric acid, phthalic acid, citric acid, succinic acid, maleic acid, acetic acid, malic acid, tartaric acid, lactic acid, gluconic acid, carbonic acid, boric acid, trishydroxymethylaminomethane and hydroxyethylpiperazineethanesulfonic acid and their salts. The detergent composition according to claim 2, wherein the pH is 8 to 10.

4. The detergent composition according to any one of claims 1 to 3, wherein the amphoteric surfactant is an amine oxide type surfactant.

5. A spray bottle type cleaning agent, wherein the cleaning agent composition according to any one of claims 1 to 4 is filled into a spray bottle.

6. A wet wiper comprising a fibrous sheet containing the cleaning agent composition according to any one of claims 1 to 4.

7. A method for cleaning the surface of an article, comprising bringing the cleaning agent composition according to any one of claims 1 to 4 into contact with the surface of the article to be cleaned.

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