Detergent composition for wiping and cleaning footwear

Abstract

Provided is a detergent composition for wiping and cleaning footwear, the detergent composition comprising a nonionic ultraviolet absorber and a surfactant, wherein when the detergent composition is used for wiping and cleaning footwear, the detergent composition can not only provide a cleaning effect but also effectively suppress discoloration of the footwear.

Description

Cleaning agent composition for wiping and washing footwear

[0001] The present invention relates to a cleaning agent composition for wiping and washing footwear that does not require rinsing with water.

[0002] Generally, commercially available laundry detergents or detergents specifically for athletic shoes are used to clean athletic shoes and sneakers.

[0003] On the other hand, these detergents are primarily designed for use in water. This means that sneakers must be soaked in a detergent solution, scrubbed with a brush, and then rinsed with water to remove all traces of the detergent and dirt. However, this method presents problems such as damage to the fabric from scrubbing and the time it takes for the sneakers to dry after rinsing, making them unsuitable for immediate wear.

[0004] Therefore, there is a certain demand for cleaning agents that can be used without rinsing with water. For example, Patent Document 1 describes a cleaning sheet that can clean and disinfect shoes without rinsing with water.

[0005] Japanese Patent Publication No. 2021-70815

[0006] Incidentally, due to the nature of the wiping method, a certain amount of the cleaning agent composition remains on the surface of the footwear. While it is useful to take advantage of this characteristic and incorporate discoloration-inhibiting components such as UV absorbers into the cleaning agent composition to prevent discoloration of footwear, conventional cleaning agent compositions have sometimes failed to sufficiently suppress discoloration of the footwear surface, especially light-colored resin materials.

[0007] In view of the above issues, the present inventors conducted diligent research and found a cleaning composition that, when used for wiping and washing footwear, not only provides a cleaning effect but also effectively suppresses discoloration of the footwear, by using a combination of a surfactant and a specific ultraviolet absorber.

[0008] In other words, the present invention is as follows: [1] A cleaning agent composition for wiping and washing footwear, comprising a nonionic ultraviolet absorber and a surfactant. [2] The cleaning agent composition according to [1], wherein the octanol / water partition coefficient of the ultraviolet absorber is 5 or more. [3] The cleaning agent composition according to [1] or [2], wherein the mass ratio of the ultraviolet absorber to the surfactant is 1:4 to 12. [4] The cleaning agent composition according to any one of [1] to [3], wherein the footwear includes a sole made of urethane resin. [5] The cleaning agent composition according to claim 1 of [1] to [4], which suppresses discoloration. [6] A method for disinfecting and cleaning footwear, characterized by wiping the surface of the footwear with the cleaning agent composition according to any one of [1] to [5]. [7] A method for suppressing discoloration of footwear, characterized by wiping the surface of the footwear with the cleaning agent composition according to any one of [1] to [5].

[0009] The cleaning agent composition for wiping and washing footwear according to the present invention does not require rinsing, and not only is it effective in cleaning, but it also suppresses discoloration of footwear.

[0010] The cleaning agent composition for wiping and washing footwear of the present invention (hereinafter simply referred to as "the present invention composition") contains a nonionic ultraviolet absorber and a surfactant. The present invention composition is for wiping and washing, meaning that rinsing with water is not necessary for cleaning, and it only requires wiping.

[0011] The above-mentioned nonionic UV absorbers, that is, UV absorbers that tend not to ionize in water, are not particularly limited, but examples include benzotriazole UV absorbers, cyanoacrylate UV absorbers, benzophenone UV absorbers, and hindered amine UV absorbers. Among nonionic UV absorbers, those with an octanol / water partition coefficient (also called Log P or LogPow) of 5 or more are preferred, and those with an octanol / water partition coefficient of 6 to 10 are more preferred. Examples of nonionic UV absorbers having such an octanol / water partition coefficient include UV-328 (Log P: 7.3), octabenzone (Log P: 7.4), and benzotriazolyldodecyl p-cresol (Log P: 8.9). One or more of these nonionic UV absorbers can be used.

[0012] The octanol / water partition coefficient mentioned above is the ratio of the concentration of a substance in octanol to the concentration of a substance in water when the substance is dissolved in a mixture of octanol and water (20-25°C), and can be either a calculated or measured value. The formula for calculating the octanol / water partition coefficient is as follows:

[0013] [Mathematics 1] Octanol / water partition coefficient = Log10 (concentration of substance in the octanol layer / concentration of substance in the water layer)

[0014] In the composition of the present invention, the theoretical basis for the effectiveness of nonionic UV absorbers is not entirely clear. However, compared to ionic UV absorbers that easily ionize in water, nonionic UV absorbers exhibit a moderate tendency to be lipophilic, which may lead to the formation of a uniform UV absorber film, thereby effectively suppressing discoloration of footwear.

[0015] The content of the nonionic ultraviolet absorber in the composition of the present invention is not particularly limited, but is, for example, 0.05 to 0.5% by mass (hereinafter simply referred to as "%"), preferably 0.1 to 0.3%.

[0016] The above-mentioned surfactants are not particularly limited, but examples include cationic surfactants, nonionic surfactants, anionic surfactants, amphoteric surfactants, and the like.

[0017] The cationic surfactant mentioned above is not particularly limited, but examples include cationic surfactants containing two or more hydroxyl groups. Commercially available products can also be used as such cationic surfactants. Examples of commercially available products include FB-2002N, Liposocard O / 12, and Liposocard C / 12 (all manufactured by Lion Specialty Chemicals).

[0018] The above-mentioned anionic surfactant is not particularly limited, but examples include sulfonate-type anionic surfactants. Commercially available products can also be used as such anionic surfactants. Examples of commercially available products include Liporan LB-440, Liporan LJ-441, K Liporan PJ-400CJ (all manufactured by Lion Specialty Chemicals), Neoperex G-15 (manufactured by Kao Corporation, sodium alkylbenzene sulfonate) Marpomarce PT, Lavanol SF-7K (Matsumoto Oil & Fat Pharmaceutical Co., Ltd.), Hostapur SAS 60 (manufactured by Clariant).

[0019] The nonionic surfactants mentioned above are not particularly limited, but examples include polyethylene glycol-type nonionic surfactants and polyhydric alcohol-type nonionic surfactants. Commercially available nonionic surfactants can also be used. Examples of commercially available products include FineSurf TD-80, FineSurf TD-90, FineSurf TD-120 (all manufactured by Aoki Oil & Fat Industry Co., Ltd.), Marpon ACF-7, Marpon ACF-9, Marpon ACF-12 (all manufactured by Matsumoto Oil & Fat Pharmaceutical Co., Ltd.), Glucopon 215UP, Glucopon 425N / HH, Glucopon 650EC (all manufactured by BASF Japan), GREEN APG0810, GREEN APG1214 (both manufactured by Nikko Chemicals Co., Ltd.).

[0020] The above-mentioned amphoteric surfactants are not particularly limited, but examples include carboxylate-type amphoteric surfactants, sulfate-ester-type amphoteric surfactants, sulfonate-type amphoteric surfactants, phosphate-ester-type amphoteric surfactants, and so on. Commercially available products can also be used as such amphoteric surfactants.

[0021] While one or more of the above-mentioned surfactants can be used, from the standpoint of balancing good cleaning and disinfecting power, it is also possible to use three types: cationic surfactants, nonionic surfactants, and anionic surfactants.

[0022] The surfactant content in the composition of the present invention is not particularly limited, but is, for example, 0.6 to 1.8%, preferably 1.0 to 1.6%.

[0023] Furthermore, when three types of surfactants—cationic surfactants, nonionic surfactants, and anionic surfactants—are used as surfactants in the composition of the present invention, their respective contents are 0.1 to 0.5% for cationic surfactants, 0.5 to 1.2% for nonionic surfactants, and 0.03 to 0.1% for anionic surfactants.

[0024] The composition of the present invention contains the above-mentioned ultraviolet absorber and surfactant as essential components. The mass ratio of the ultraviolet absorber to the surfactant is not particularly limited, but is, for example, 1:4 to 12, preferably 1:6 to 10.

[0025] In the present invention, it is preferable to dissolve the above essential components in water.

[0026] The water content in the composition of the present invention is not particularly limited, but is, for example, 70 to 99%, preferably 80 to 98%.

[0027] The composition of the present invention preferably further contains a solvent for dissolving the above components in water. Examples of such solvents include alcohol-based solvents such as ethanol, propanol, and butanol, and glycol-based solvents such as ethylene glycol, propylene glycol, 1,3-butylene glycol, 1,2-butanediol, and 1,2-hexanediol. One or more of these solvents can be used, but it is preferable to use at least ethanol, and more preferable to use ethanol and propylene glycol. The solvent content in the composition of the present invention is not particularly limited, but for example, it is 0.1 to 10%, preferably 1 to 8%.

[0028] The composition of the present invention preferably further contains a cleaning aid and a pH adjuster.

[0029] The above-mentioned cleaning aids are not particularly limited as long as they have a chelating effect, but examples include trisodium ethylenediaminetetraacetate, trisodium methylglycinediacetate, dihydroxyethylglycine, sodium dihydroxyethylglycine, ethylenediaminetetraacetic acid, sodium ethylenediaminetetraacetate, disodium ethylenediaminetetraacetate, and tetrasodium ethylenediaminetetraacetate. One or more of these cleaning aids can be used. The content of the cleaning aids in the composition of the present invention is not particularly limited, but for example, it is 0.05 to 3%, preferably 0.05 to 1%.

[0030] The pH adjusting agent is not particularly limited and examples include acids such as citric acid and oxalic acid, and alkalis such as sodium hydroxide and potassium hydroxide. The pH adjusting agent should be used in an appropriate amount to adjust the pH of the composition of the present invention to approximately 4.5 to 9.5.

[0031] The composition of the present invention may contain known components such as disinfectants, fragrances, antioxidants, and fungicides, as long as they do not impair the effects of the present invention.

[0032] The disinfectant is not particularly limited, and examples include phenoxyethanol, glycol ether-based disinfectants such as 3-methoxy-3-methyl-1-butanol, etc. One or more of these other disinfectants can be used. In the composition of the present invention, the other disinfectants should be used in appropriate amounts.

[0033] The above-mentioned fragrances are not particularly limited, and for example, apple-based fragrances, mint-based fragrances, etc., may be used. One or more of these fragrances may be used. In the composition of the present invention, an appropriate amount of fragrance may be used.

[0034] The above-mentioned antioxidants are not particularly limited, and for example, BHT (dibutylhydroxytoluene), BHA (butylhydroxyanisole), ascorbic acid, tocopherol, sodium erythorbate, etc., may be used. One or more of these antioxidants may be used. In the composition of the present invention, an appropriate amount of antioxidant may be used.

[0035] The above-mentioned fungicide is not particularly limited. For example, 5-chloro-2-methyl-4-isothiazolin-3-one, 2-n-octyl-4-isothiazolin-3-one, etc. may be used. These fungicides can be used alone or in combination of two or more. In the composition of the present invention, an appropriate amount of fungicide may be used.

[0036] Preferred embodiments of the composition of the present invention include the following. Nonionic ultraviolet absorber 0.05 - 0.5% Surfactant 0.6 - 1.8% Water balance

[0037] More preferred embodiments of the composition of the present invention include the following. Nonionic ultraviolet absorber 0.1 - 0.3% Cationic surfactant containing two or more hydroxyalkyl groups 0.1 - 0.5% Sulfonate-type anionic surfactant 0.03 - 0.1% Nonionic surfactant 0.5 - 1.2% Water balance Solvent 1 - 3% Detergent aid 0.05 - 1% pH adjuster An amount to make pH 7.0

[0038] The composition of the present invention can be prepared by mixing the above-mentioned respective components.

[0039] The composition of the present invention thus obtained can be used for cleaning and disinfection by simply wiping the surface of footwear, and can also suppress discoloration of the footwear after wiping.

[0040] The method of using the composition of the present invention is to discharge or spray the composition of the present invention onto a wiping cloth and then wipe the surface of the footwear. Also, discharging or spraying and wiping can be performed multiple times if necessary. Further, during this cleaning, it is only necessary to wipe, and there is no need to rinse with water or the like. Also, it does not stain the surface of the footwear.

[0041] The footwear to which the composition of the present invention is applied has been conventionally washed with water, but washing that uses a large amount of water is not preferable. For example, it can be used for footwear made of one or more materials such as resin (e.g., urethane, nylon, vinyl chloride, synthetic rubber, etc.), synthetic leather, natural leather, hemp, cotton, nubuck, natural rubber, suede, etc. The resin may be foamed. Among the footwear made of these materials, footwear containing resin members is preferable because discoloration due to ultraviolet rays and the like can be particularly suppressed. Further, footwear containing a urethane resin sole is more preferable because the composition of the present invention is easily adaptable. For such footwear, for example, about 8 g of the composition of the present invention may be used.

[0042] The composition of the present invention is preferably stored in a container for discharging or spraying and made into a product according to the method of using the composition of the present invention.

[0043] The product in which the composition of the present invention is stored in a container for discharging or spraying is preferably made into a product in combination with a cloth for wiping. The cloth for wiping is not particularly limited, but a microfiber cloth or the like is preferable.

[0044] The container for discharging or spraying for storing the composition of the present invention is not particularly limited. For example, a container in which the composition of the present invention forms foam by discharging, a container in which the composition of the present invention comes out in a liquid state by discharging, a container in which the composition of the present invention comes out in a fine mist state by spraying, etc. can be mentioned. Examples of the container in which the composition of the present invention forms foam by discharging include a pump foamer type container. Examples of the container in which the composition of the present invention comes out in a liquid state by discharging include a pump type container. Examples of the container in which the composition of the present invention comes out in a fine mist state by spraying include a mist spray type container and a trigger type container. Among these containers for discharging or spraying, a container that forms foam by discharging is preferable. The amount of the composition of the present invention discharged by pushing the container that forms foam by discharging (pump foamer type) once is about 1 g.

[0045] Hereinafter, the present invention will be described in detail with reference to embodiments of the present invention. However, the present invention is not limited to these embodiments in any way.

[0046] Example 1 Preparation of detergent composition and test pieces: The components shown in Table 1 were mixed to prepare a detergent composition for wiping and washing footwear. The pH of these detergent compositions was approximately 7. Test pieces were prepared by applying each detergent composition foamed with a pump foamer onto a rectangular parallelepiped-shaped foamed urethane resin cut into a width of 20 mm, a depth of 30 mm, and a height of 10 mm using a microfiber cloth. The application surface was a surface with a width of 20 mm × a depth of 30 mm, and the application amount of the detergent composition per unit area was 0.02 g / cm ２ 2. A control test piece without the application of the detergent composition was designated as "Test piece 0", and test pieces applied with detergent compositions 1 to 3 were designated as "Test piece 1" to "Test piece 3", respectively. The relationship between the detergent compositions used and the test pieces is also shown in Table 1.

[0047]

[0048] Regarding detergent compositions 1 to 3, it has been separately confirmed that they can be used for wiping and washing footwear and for disinfection.

[0049] Test Example 1

[0050] Ultraviolet irradiation was performed on the surface of each test piece to which the detergent composition prepared in Example 1 above was applied using an ultraviolet fade meter (manufactured by Suga Test Instruments Co., Ltd.: U48). The irradiation conditions were an illuminance of 500 W / cm ２ 2, a temperature of 25°C, and a duration of 72 hours. For each test piece, the color difference ΔE ０ before ultraviolet irradiation (t ７２ ) and the color difference after irradiation (t ＊ ) were calculated, and the color change inhibitory property was evaluated based on the magnitude of the difference between the color difference ΔEc ＊ of the control and the color difference ΔE ＊ of each test piece. The evaluation criteria are shown in Table 2, and the results are shown in Table 3. In this evaluation, it was considered that the greater the value of the difference ΔEc ＊ −ΔE ＊ , the more the color change was suppressed, and a case where the value was 1.5 or more was regarded as passing.

[0051]

[0052]

[0053] Detergent composition 1, which contains a nonionic UV absorber, passed the discoloration suppression evaluation. On the other hand, detergent composition 2, which contains an anionic UV absorber, and detergent composition 3, which does not contain a UV absorber, failed the discoloration suppression evaluation.

[0054] The cleaning agent composition for wiping and washing footwear of the present invention can be used for wiping and washing footwear and for suppressing discoloration of said footwear.

Claims

1. A cleaning agent composition for wiping and washing footwear, comprising a nonionic ultraviolet absorber and a surfactant.

2. The detergent composition according to claim 1, wherein the octanol / water partition coefficient of the ultraviolet absorber is 5 or more.

3. The detergent composition according to claim 1, wherein the mass ratio of the ultraviolet absorber to the surfactant is 1:4 to 12.

4. The cleaning agent composition according to claim 1, wherein the footwear includes a sole made of urethane resin.

5. The cleaning agent composition according to claim 1, which suppresses discoloration.

6. A method for disinfecting and cleaning footwear, characterized by wiping the surface of the footwear with the cleaning agent composition described in any one of claims 1 to 5.

7. A method for suppressing discoloration of footwear, characterized by wiping the surface of the footwear with the cleaning agent composition described in any one of claims 1 to 5.

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