JP7507464B2 - Liquid germicidal cleaning composition - Google Patents

Description

The present invention relates to a liquid germicidal cleaner composition that has excellent cleaning performance, germicidal performance, and storage stability. In particular, the present invention relates to a liquid germicidal cleaner composition that has excellent cleaning performance for removing denatured edible oil stains attached to hard surfaces.

When edible oils used in cooking are heated, they oxidize and become denatured, and their viscosity increases. For this reason, it is not easy to remove stains from denatured edible oils that adhere to hard surfaces in the kitchen, on floors, or on cooking utensils.

To date, liquid germicidal cleaner compositions for disinfecting and cleaning hard surfaces, which contain specific anionic surfactants or cationic surfactants as active ingredients, have been developed and reported. Patent Document 1 describes that "a liquid germicidal cleaner composition containing (A) at least one anionic surfactant selected from alkyl sulfates and alkanesulfonates, (B) a cationic surfactant consisting of (b1) a long-chain alkyl di-short-chain alkyl hydroxyethyl ammonium salt and (b2) at least one cationic surfactant other than a long-chain alkyl di-short-chain alkyl hydroxyethyl ammonium salt, (C) a metal ion sequestering agent, and (D) water, wherein the mass ratio of (A) to (b1) in the composition is (A):(b1) = 1:2 to 1:7" is suitable for cleaning hard surfaces.

Patent Document 2 also discloses liquid detergent compositions containing "(a) 0.1 to 10 mass% of a compound represented by the following general formula (1), (b) 0.1 to 15 mass% of a nonionic surfactant compound represented by the following general formula (2), (c) 5 to 50 mass% of an anionic surfactant having a hydrocarbon group having 10 to 18 carbon atoms, and water. R ^1a -A-B(1) [wherein R ^1a is an alkyl group having 7 to 10 carbon atoms and having one or more tertiary carbon atoms, A is a group selected from -O- and the like, B is a group selected from groups having 2 to 10 hydroxyl groups and having a total of 3 to 12 carbon atoms, and the like]; R ^2a -CON(R ^2b )-X(2) [wherein R ^2a is a hydrocarbon group having 11 to 15 carbon atoms, R ^2b is a hydrogen atom or the like, and X is a hydrocarbon group having 5 to 8 carbon atoms and 3 to 6 hydroxyl groups. ] is suitable for cleaning hard surfaces such as in the kitchen, dishes, and cooking utensils.

However, conventional liquid detergent compositions often do not easily remove denatured edible oil stains from hard surfaces.

Japanese Patent No. 4051269 JP 2005-171174 A

In view of the above circumstances, the present invention aims to provide a liquid germicidal cleaner composition that has excellent cleaning performance for removing denatured edible oil stains adhering to hard surfaces, as well as excellent germicidal performance and storage stability.

The inventors have conducted intensive research to solve the above problems, and as a result have found that a liquid germicidal cleaner composition containing an anionic surfactant, a long-chain alkyl di-short-chain alkyl hydroxyethyl ammonium salt, a nonionic surfactant compound having a specific structure, other nonionic surfactant compounds and/or amphoteric surfactants, and a solvent as active ingredients has excellent cleaning performance against denatured edible oil stains adhering to hard surfaces, as well as excellent germicidal performance and storage stability.

The present invention is based on these findings and includes the following inventions.
[1] A liquid germicidal cleaning agent composition comprising the following components (A) to (F):
(A) an anionic surfactant,
(B) long-chain alkyl di-short-chain alkyl hydroxyethyl ammonium salt,
(C) General formula (1):
R1-CO-NR2X (1)
[In the formula, R1 is a hydrocarbon group having 7 to 17 carbon atoms, R2 is a hydrogen atom, an alkyl group having 1 to 4 carbon atoms, or a hydroxyalkyl group having 1 to 4 carbon atoms, and X is a hydrocarbon group having at least three hydroxyl groups.]
A nonionic surfactant compound represented by the formula:
(D) at least one selected from the group consisting of nonionic surfactants excluding (C) and amphoteric surfactants,
(E) a solvent,
(F) Water.
[2] The composition according to [1], wherein the component (A) is selected from the group consisting of alkyl sulfonates, alkyl ether sulfates, alkyl benzene sulfonates, alkyl sulfates, and fatty acid salts.
[3] The composition according to [1] or [2], wherein the component (B) is selected from the group consisting of alkyl or alkenyl dimethylhydroxyethyl ammonium salts having an alkyl or alkenyl group having 10 to 16 carbon atoms.
[4] The component (C) is represented by general formula (1):
R1-CO-NR2X (1)
[In the formula, R1 is a hydrocarbon group having 7 to 15 carbon atoms, R2 is a hydrogen atom, an alkyl group having 1 to 4 carbon atoms, or a hydroxyalkyl group having 1 to 4 carbon atoms, and X is a hydrocarbon group having 5 to 8 carbon atoms and 3 to 6 hydroxyl groups.]
The composition according to any one of [1] to [3], wherein the compound is selected from the group consisting of nonionic surfactant compounds represented by the formula:
[5] The composition of any of [1] to [4], wherein the component (D) is selected from the group consisting of alkylene oxide adducts of higher alcohols or alkylamines, Pluronic block polymers, reverse Pluronic block polymers, ethylene oxide propylene oxide adducts of polyhydric alcohols, ethylene oxide propylene oxide adducts of glycerin, polyglyceryl alkyl ethers, fatty acid polyglyceryls, alkyl polyglucosides, fatty acid alkanolamides, betaine surfactants, imidazoline amphoteric surfactants, amino acid amphoteric surfactants, amine oxide surfactants, and alkylaminoethyl glycine salts.
[6] The composition according to any one of [1] to [5], wherein the component (E) is selected from the group consisting of glycol ether solvents and alcohol solvents.

The present invention provides a liquid germicidal cleaner composition that has excellent cleaning performance for removing denatured edible oil stains adhering to hard surfaces, and also has excellent germicidal performance and storage stability.

The present invention relates to a liquid germicidal cleaning agent composition, which is characterized by containing the following components (A) to (F):
(A) an anionic surfactant,
(B) long-chain alkyl di-short-chain alkyl hydroxyethyl ammonium salt,
(C) a nonionic surfactant compound represented by the general formula (1): R1-CO-NR2X (1),
(D) at least one selected from the group consisting of nonionic surfactants excluding (C) and amphoteric surfactants,
(E) a solvent, and (F) water.

(A) Anionic Surfactant As the (A) anionic surfactant (hereinafter sometimes referred to as "(A) component") used in the present invention, anionic surfactants commonly used in liquid germicidal cleaner compositions can be used, for example, alkyl sulfonate, alkyl ether sulfate, alkyl benzene sulfonate, alkyl sulfate, and fatty acid salt. The "salt" is not particularly limited, but metal salts such as sodium, potassium, and magnesium, alkanolamine salts such as monoethanolamine salts, diethanolamine salts, and triethanolamine salts, and ammonium salts are preferred. The (A) component may be a single component or a combination of two or more types. In particular, alkyl sulfonate, alkyl ether sulfate, and fatty acid salt are preferred from the viewpoints of balance with other components, storage stability, cleaning performance, and bactericidal performance.

Component (A) can be blended in the composition of the present invention at a ratio of 0.0005 to 10% by mass, preferably 0.005 to 7% by mass, more preferably 0.01 to 5% by mass, and even more preferably 0.01 to 1% by mass. If it is less than 0.0005% by mass, the cleaning performance against denatured edible oil stains and storage stability may not be sufficient, while if it exceeds 10% by mass, the balance with other components may be lost and the desired effect may not be obtained.

(B) Long-chain alkyl di-short-chain alkyl hydroxyethyl ammonium salt As the (B) long-chain alkyl di-short-chain alkyl hydroxyethyl ammonium salt (hereinafter, sometimes referred to as "(B) component") used in the present invention, a long-chain alkyl di-short-chain alkyl hydroxyethyl ammonium salt generally used in liquid germicidal cleaner compositions can be used. Regarding the (B) component, "long chain" refers to one having 10 to 16 carbon atoms, and "short chain" refers to one having 1 to 2 carbon atoms. Preferred examples of the (B) component that can be used in the present invention include decyl dimethyl hydroxyethyl ammonium salt, lauryl dimethyl hydroxyethyl ammonium salt, myristyl dimethyl hydroxyethyl ammonium salt, decyl diethyl hydroxyethyl ammonium salt, lauryl diethyl hydroxyethyl ammonium salt, myristyl diethyl hydroxyethyl ammonium salt, and the like. The "salt" is not particularly limited, but chloride, gluconate, propionate, methyl sulfate, ethyl sulfate, and carbonate are preferred. The (B) component may be a single component or a combination of two or more types. In particular, from the standpoint of balance with other components, storage stability, cleaning performance, and sterilizing performance, long-chain alkyl di-short-chain alkyl hydroxyethyl ammonium chlorides are preferred, and C12-C14 alkyl dimethyl hydroxyethyl ammonium chloride is particularly preferred.

The (B) component can be blended in the composition of the present invention at a ratio of 0.001 to 10% by mass, preferably 0.001 to 7% by mass, more preferably 0.01 to 5% by mass, and even more preferably 0.01 to 2% by mass. If it is less than 0.001% by mass, the cleaning performance against stains from modified edible oil, the bactericidal performance, and storage stability may not be sufficient, while if it exceeds 10% by mass, the balance with other components may be lost and the desired effect may not be obtained.

(C) Nonionic surfactant compound represented by general formula (1) In the present invention, a nonionic surfactant compound represented by general formula (C) (hereinafter, sometimes referred to as "component (C)") is used, which is represented by general formula (1): R1-CO-NR2X (1) [wherein "R1" is a hydrocarbon group having 7 to 17 carbon atoms, "R2" is a hydrogen atom, an alkyl group having 1 to 4 carbon atoms, or a hydroxyalkyl group having 1 to 4 carbon atoms, and "X" is a hydrocarbon group having at least three hydroxyl groups. ]. More preferably, it is a nonionic surfactant compound represented by general formula (1): R1-CO-NR2X (1) [wherein "R1" is a hydrocarbon group having 7 to 15 carbon atoms, "R2" is a hydrogen atom, an alkyl group having 1 to 4 carbon atoms, or a hydroxyalkyl group having 1 to 4 carbon atoms, and "X" is a hydrocarbon group having 5 to 8 carbon atoms and having 3 to 6 hydroxyl groups. ]. The component (C) may be a single component or a combination of two or more types. In particular, glucamides are preferred from the standpoint of balance with other components, storage stability, cleaning performance, and bactericidal performance, and glucamides in which R1 is C12 to C14 and R2 is a methyl group or an ethyl group in the above general formula (1) are particularly preferred.

The (C) component can be blended in the composition of the present invention at a ratio of 0.001 to 10% by mass, preferably 0.01 to 7% by mass, and more preferably 0.01 to 5% by mass. If it is less than 0.001% by mass, the cleaning performance and bactericidal performance against stains from modified edible oils and storage stability may not be sufficient, while if it exceeds 10% by mass, the balance with other components may be lost and the desired effect may not be obtained. In particular, from the standpoint of the balance with other components, storage stability, cleaning performance, and bactericidal performance, a more preferred blend ratio is 0.01 to 2% by mass.

(D) Other nonionic surfactants and amphoteric surfactants As (D) at least one selected from nonionic surfactants and amphoteric surfactants excluding (C) above (hereinafter sometimes referred to as "component (D)") used in the present invention, nonionic surfactants (excluding (C) above) and amphoteric surfactants commonly used in liquid germicidal cleaning agent compositions can be used.

Nonionic surfactant compounds in component (D) include alkylene oxide adducts of higher alcohols or alkylamines (e.g., polyoxyethylene alkyl ethers, polyoxyethylene alkylamines, polyoxyethylene polyoxypropylene alkyl ethers, polyoxyethylene polyoxypropylene alkylamines, etc.), Pluronic block polymers, reverse Pluronic block polymers, ethylene oxide propylene oxide adducts of polyhydric alcohols, ethylene oxide propylene oxide adducts of glycerin, polyglyceryl alkyl ethers, fatty acid polyglyceryls, alkyl polyglucosides, fatty acid alkanolamides, etc. These may be used alone or in combination of two or more.

The above-mentioned polyoxyethylene alkyl ethers or polyoxyethylene alkyl amines include polyoxyethylene alkyl ethers or polyoxyethylene alkyl amines in which 2 to 20 moles of ethylene oxide (EO) are added to alcohols or amines having a linear or branched hydrocarbon group with 6 to 24 carbon atoms. Among these, polyoxyethylene alkyl ethers or polyoxyethylene alkyl amines in which 6 to 12 moles of ethylene oxide are added to alcohols or amines having a linear or branched hydrocarbon group with 8 to 18 carbon atoms are preferably used, in terms of cleaning performance, sterilizing performance, storage stability, and balance with other components.

The polyoxyethylene polyoxypropylene alkyl ether or polyoxyethylene polyoxypropylene alkylamine may be a polyoxyethylene polyoxypropylene alkyl ether or polyoxyethylene polyoxypropylene alkylamine in which 1 to 40 moles of ethylene oxide (EO) and 1 to 50 moles of propylene oxide (PO) are added to a linear or branched alcohol or amine having 6 to 24 carbon atoms, preferably a polyoxyethylene polyoxypropylene alkyl ether or polyoxyethylene polyoxypropylene alkylamine in which 1 to 20 moles of ethylene oxide and 1 to 15 moles of propylene oxide are added to a linear or branched alcohol or alkylamine having 6 to 18 carbon atoms.

Examples of the Pluronic block polymer include Pluronic block polymers having an average molecular weight in the range of 500 to 10,000 and an EO/PO mass ratio in the range of 0.25 to 4.0, Pluronic block polymers having an average molecular weight in the range of 500 to 10,000 and an ethylene oxide content in the range of 5% to 80% of the total average molecular weight, and Pluronic block polymers having an average molecular weight in the range of 500 to 10,000 and an EO/PO mass ratio in the range of 0.05 to 1.

Examples of reverse Pluronic block polymers include reverse Pluronic block polymers having an average molecular weight in the range of 500 to 10,000 and an EO/PO mass ratio in the range of 0.05 to 1.

The ethylene oxide propylene oxide adduct of the above polyhydric alcohol may be an adduct of 3 to 45 moles of ethylene oxide and 15 to 120 moles of propylene oxide to trimethylolpropane.

The ethylene oxide propylene oxide adduct of glycerin may be one in which 3 to 45 moles of ethylene oxide and 15 to 120 moles of propylene oxide are added to glycerin.

The polyglyceryl alkyl ether may have an alkyl group with 10 to 14 carbon atoms and a degree of condensation of 2 to 10. In particular, polyglyceryl-4-lauryl ether is preferred because it does not reduce cleaning performance, bactericidal performance, or storage stability.

The above-mentioned fatty acid polyglyceryls include those with an alkyl group having 7 to 17 carbon atoms and a condensation degree of 2 to 10. In particular, polyglyceryl-6 caprylate and polyglyceryl-10 laurate are preferred because they do not reduce cleaning performance, bactericidal performance, or storage stability.

The alkyl polyglucosides mentioned above include those having an alkyl group with 8 to 16 carbon atoms and a condensation degree of 1.0 to 1.8, and those having 8 to 14 carbon atoms and a condensation degree of 1.3 to 1.7 are particularly preferred in terms of not reducing cleaning performance, bactericidal performance, and storage stability.

Examples of the fatty acid alkanolamides include coconut oil fatty acid diethanolamide (1:1 type), lauric acid diethanolamide, myristic acid diethanolamide, stearic acid diethanolamide, isostearic acid diethanolamide, oleic acid diethanolamide, coconut oil fatty acid diethanolamide (1:2 type), and alkylene oxides attached to the alkyl groups.

Among the above fatty acid alkanolamides, those of 1:1 type with 10 to 14 carbon atoms are preferred from the standpoint of foaming and cleaning performance, and lauric acid diethanolamide, myristic acid diethanolamide, and coconut oil fatty acid diethanolamide (1:1 type) are particularly preferred.

In component (D), examples of amphoteric surfactants include betaine-based surfactants such as alkyl betaines, alkyl dimethyl amino acetic acid betaines, alkyl amidopropyl betaines, and alkyl sulfobetaines; imidazoline-based amphoteric surfactants which are derived amphoteric surfactants of alkyl imidazolines; amino acid-based amphoteric surfactants consisting of N-alkyl amino acids or their salts; amine oxide-based surfactants such as alkyl amine oxides; and amphoteric surfactants which are salts of alkyl amino ethyl glycine such as alkyl diamino ethyl glycine and alkyl polyamino ethyl glycine (e.g., sodium salts and hydrochlorides). Of these, alkyl amine oxides are preferably used.

The alkylamine oxide may be an alkylamine oxide represented by the general formula (2): R1-N(R2)(R3)O (wherein R1 is a C8-18 alkyl, and R2 and R3 are each independently selected from at least one of the group consisting of methyl, ethyl, propyl, isopropyl, 2-hydroxyethyl, 2-hydroxypropyl, and 3-hydroxypropyl). From the viewpoint of cleaning performance, lauryl dimethylamine oxide, myristyl dimethylamine oxide, coconut alkyl dimethylamine oxide, lauryl dihydroxyamine oxide, myristyl dihydroxyamine oxide, and coconut alkyl dihydroxyethylamine oxide are particularly preferably used.

In particular, from the standpoint of balance with other components, storage stability, cleaning performance, and sterilizing performance, the following are preferably used as component (D): polyoxyethylene alkyl ethers in which 6 to 12 moles of ethylene oxide are added to alcohols or amines having linear or branched hydrocarbons with 8 to 18 carbon atoms, or polyoxyethylene alkylamines, polyglyceryl-4-lauryl ether, polyglyceryl-6 caprylate, polyglyceryl-10 laurate, alkyl polyglucosides with 8 to 14 carbon atoms and a condensation degree of 1.3 to 1.7, lauryl dimethylamine oxide, myristyl dimethylamine oxide, coconut alkyl dimethylamine oxide, lauryl dihydroxyamine oxide, myristyl dihydroxyamine oxide, and coconut alkyl dihydroxyethylamine oxide.

The (D) component can be blended in the composition of the present invention at a ratio of 0.001 to 15% by mass, preferably 0.01 to 10% by mass, and more preferably 0.02 to 7% by mass. If it is less than 0.001% by mass, the cleaning performance and storage stability against stains from modified edible oils may be insufficient, while if it exceeds 15% by mass, the balance with other components may be lost and the desired effect may not be obtained. In particular, from the standpoint of the balance with other components, storage stability, cleaning performance, and bactericidal performance, a more preferable blend ratio is 0.05 to 6% by mass.

(E) Solvent The (E) solvent (hereinafter sometimes referred to as "(E) component") used in the present invention can be a water-soluble solvent generally used in liquid germicidal cleaner compositions, for example, at least one selected from glycol ether solvents and alcohol solvents. (E) component may be a single component or a combination of two or more.

Examples of glycol ether solvents include ethylene glycol monomethyl ether, ethylene glycol monoethyl ether, ethylene glycol monoisopropyl ether, ethylene glycol monobutyl ether, ethylene glycol dimethyl ether, diethylene glycol monomethyl ether, diethylene glycol monoethyl ether, diethylene glycol monopropyl ether, diethylene glycol monobutyl ether, diethylene glycol dimethyl ether, diethylene glycol diethyl ether, triethylene glycol monomethyl ether, triethylene glycol monoethyl ether, triethylene glycol monobutyl ether, triethylene glycol dimethyl ether, tetraethylene glycol dimethyl ether, polyethylene glycol monomethyl ether, propylene glycol monomethyl ether, propylene glycol monoethyl ether, propylene glycol monopropyl ether, dipropylene glycol monomethyl ether, dipropylene glycol dimethyl ether, tripropylene glycol monomethyl ether, and 3-methyl-3-methoxybutanol.

Examples of alcohol-based solvents include ethyl alcohol, isopropanol, 3-methoxybutanol, ethylene glycol, diethylene glycol, triethylene glycol, polyethylene glycol, propylene glycol, dipropylene glycol, tripropylene glycol, polypropylene glycol, 1,3-butylene glycol, 1,4-butanediol, 1,5-pentanediol, hexylene glycol, and glycerin.

In particular, in terms of balance with other components, storage stability, cleaning performance, and bactericidal performance, triethylene glycol dimethyl ether and diethylene glycol monobutyl ether are preferred as component (E).

Component (E) can be blended in the composition of the present invention at a ratio of 0.005 to 10% by mass, preferably 0.05 to 10% by mass, and more preferably 0.05 to 7% by mass. If it is less than 0.005% by mass, the cleaning performance and storage stability against stains from modified edible oils may be insufficient, while if it exceeds 10% by mass, the balance with other components may be lost and the desired effect may not be obtained. In particular, from the standpoint of the balance with other components, storage stability, cleaning performance, and bactericidal performance, a more preferred blend ratio is 0.05 to 5% by mass.

(F) Water The "water" used in the present invention includes tap water, soft water, hard water, pure water, distilled water, ion-exchanged water, etc. These may be used alone or in combination of two or more. Among them, tap water and ion-exchanged water are preferably used from the viewpoints of economy and storage stability.

The "water" in the composition of the present invention is the sum of the water contained in the form of water of crystallization or an aqueous solution derived from each component constituting the composition of the present invention, and water added from the outside, and is blended in such a way that the total amount of the composition, including optional components, is 100% by mass.

In addition to the above components, the liquid germicidal cleaner composition of the present invention can be appropriately blended with optional components such as sequestering agents, pH adjusters (organic acids such as citric acid), pigments, fragrances, dyes, bactericides, enzymes, surfactants, cleaning builders, viscosity adjusters (thickeners, thickeners), metal corrosion inhibitors, and antioxidants, within the range that does not affect the desired performance. Examples of "sequestering agents" include amino carboxylates and carboxylates. Examples of amino carboxylates include amino polyacetates such as nitrilotriacetic acid, hydroxyethylethylenediaminetriacetic acid, ethylenediaminetetraacetic acid, propylenediaminetetraacetic acid, diethylenetriaminepentaacetic acid, glycol ether diaminetetraacetic acid, triethylenetetraminehexaacetic acid, bis(2-hydroxyphenylacetic acid)ethylenediamine, dienecolic acid, iminodiacetic acid, hydroxyethyliminodiacetic acid, glutamic acid diacetic acid, methylglycine diacetic acid and salts thereof, and amino carboxylates such as alkali metal salts, alkaline earth metal salts, ammonium salts, or alkanolamine salts thereof. Examples of carboxylates include carboxylates such as citric acid, malic acid, gluconic acid, tartaric acid, glycolic acid, lactic acid, and their alkali metal salts, alkaline earth metal salts, ammonium salts, or alkanolamine salts. These may be used alone or in combination of two or more. Among the above sequestering agents, sodium ethylenediaminetetraacetate, trisodium nitrilotriacetate, sodium glutamate diacetate, sodium methylglycine diacetate, and citric acid are preferred in terms of cleaning performance, storage stability, and bactericidal performance.

The liquid germicidal cleaner composition of the present invention is generally prepared by mixing and stirring when each component is liquid, or by first dissolving solid components in water, followed by adding other liquid components and mixing and stirring, but depending on the composition, there are no particular limitations on the order of addition and dissolution of each component, or on the manufacturing procedure such as heating/cooling as necessary.

The composition of the present invention may be used after being appropriately diluted, for example, 2 to 200 times, 3 to 150 times, 5 to 100 times, etc., as long as it can sterilize and clean. Dilution can be performed using water.

The sterilization and cleaning of an object to be sterilized and cleaned using the composition of the present invention can be carried out by the following method.
(1) The liquid germicidal cleaner composition of the present invention can be impregnated into wipes, nonwoven fabrics, sponges, mops, brushes, etc. to form germicidal cleaners, which can be wiped or rubbed against objects to be sterilized and cleaned to sterilize and clean them. Examples of objects to be germicidal and cleaned include hard surfaces on which denatured edible oil stains adhere, such as hard surfaces such as countertops, cooking utensils, tableware, floors, walls, tiles, glass, and ventilation fan walls in medical settings, nursing care settings, food factories, coffee shops, restaurants, hotels, pubs, schools (school lunches), central kitchens, and supermarket backyards. The liquid germicidal cleaner composition of the present invention can also be used on hard surfaces on which stains other than denatured edible oil adhere, and can be used to sterilize and clean the stains.

(2) The liquid germicidal cleaner composition of the present invention can be used by any suitable method other than the above. For example, it is sprayed onto the surface of the object to be sterilized and washed by a spray or the like, and left for about 1 to 5 minutes immediately or after a predetermined time, and then appropriately rinsed with water and dried. Specifically, sterilization can be performed by spraying the liquid germicidal cleaner composition of the present invention onto the surface of the object to be sterilized and washed at a rate of about 6 to 12 ml/m ² using a dedicated dispenser containing the liquid germicidal cleaner composition of the present invention. Examples of the device for sterilization and washing include those mentioned above.

The liquid germicidal cleaning agent composition of the present invention is provided in a plastic container, a container with a pump, a pouch, a tube, etc. It can also be provided individually packaged in an amount equivalent to that used each time, making it portable.

The liquid germicidal cleaning agent composition of the present invention will be described in detail below with reference to examples and comparative examples. Note that the present invention is not limited to these.

Liquid germicidal cleaner compositions of Examples 1 to 11 and Comparative Examples 1 to 8 were prepared with the compositions shown in Tables 1-1, 1-2, 2-1, and 2-2 below, and their cleaning performance, germicidal performance, and storage stability were evaluated. The results are shown in Tables 1-1, 1-2, 2-1, and 2-2. The test methods and evaluation criteria for each item are as follows.

[Cleaning performance]
The cleaning performance when the test pieces were cleaned by the following test method was evaluated according to the following evaluation criteria.
<Test Method>
(1) Soybean oil was evenly spread on a stainless steel plate (26 mm x 76 mm), heated to 180°C, and then cooled to room temperature to prepare a test piece.
(2) The test piece was immersed in approximately 2 mL of the liquid germicidal cleaning composition for 5 minutes, then removed, rinsed with water, and dried.
(3) After drying, the degree of remaining dirt was visually inspected before and after washing to judge the cleanability.
<Evaluation criteria>
The degree of remaining dirt was visually inspected and the cleanability was evaluated as follows.
○: The degree of remaining dirt by visual inspection is less than 40%. △: The degree of remaining dirt by visual inspection is 40% or more but less than 60%. ×: The degree of remaining dirt by visual inspection is 60% or more.

[Bactericidal performance]
The tests were carried out according to the following test methods and evaluated according to the following evaluation criteria.
<Test Method>
(1) 1 mL of a bacterial solution (6 x ¹⁰⁶ cfu/mL) of Escherichia coli (E. coli) or Staphylococcus aureus (Staphylococcus aureus) was added to 9 mL of the liquid germicidal cleaner composition to prepare a mixed solution, which was then allowed to stand for 30 seconds.
(2) The mixture was placed in a petri dish, added to a fungicide inactivation medium, and cultured at 37°C for 48 hours.
(3) After 48 hours of culture, the number of surviving bacteria was counted.
<Evaluation criteria>
The number of surviving bacteria was expressed as a log reduction value and was judged as follows.
○: When it is 3 Log ₁₀ or more, it has bactericidal performance. ×: When it is less than 3 Log ₁₀ , it does not have bactericidal performance.

[Storage stability]
The tests were carried out according to the following test methods, and the storage stability was evaluated according to the following evaluation criteria.
<Test Method>
The prepared liquid germicidal cleaning composition was stored at 50°C for two weeks, and the presence or absence of any changes in state such as separation, precipitation, or gelation was visually inspected.
<Evaluation criteria>
○: No change in state such as separation, precipitation, gelation, etc. occurred. ×: Change in state such as separation, precipitation, gelation, etc. occurred.

〔component〕
Details of the components and their effective purity (%) used in Tables 1-1, 1-2, 2-1 and 2-2 are as follows, and the values in the tables are converted to an effective purity of 100%.
[Component (A)]
Alkyl sulfonate: C14-17 sodium sulfonate; product name: WeylClean SAS60 (manufactured by WeilChem, active ingredient 60% by mass)
Alkyl ether sulfate: ammonium lauryl ether sulfate; product name: Micolin EA525(s) (manufactured by Miwon, active ingredient 25% by mass)
Fatty acid salt: potassium coconut fatty acid; product name: RCO-K (manufactured by ESKA Soap Co., Ltd., active ingredient 34%)

[Component (B)]
Long-chain alkyl di-short-chain alkyl hydroxyethyl ammonium salt: C12-14 alkyl dimethyl hydroxyethyl ammonium chloride; product name: Praepagen HY (manufactured by Clariant Japan, active ingredient 40% by mass)
Benzalkonium chloride: C12-14 dimethylbenzylammonium chloride; trade name: DODIGEN 226 (Clariant Japan, active ingredient 50% by mass)

[Component (C)]
C12-14 glucamide; product name: Glucopure DEG (Clariant Japan, active ingredient 60% by mass)

[Component (D)]
D-1) Polyoxyethylene alkyl ether, 6 mole ethylene oxide adduct of C9-11 linear alcohol; trade name: JCT Ethoxylate 91-6 (manufactured by Oxalis Chemicals, active ingredient 100% by mass)
D-2) Polyoxyethylene alkyl ether, 6 mole ethylene oxide adduct of C10 (narrow type) branched alcohol; trade name: Naroacty ID60 (manufactured by Sanyo Chemical Industries, active ingredient 100% by mass)
D-3) Polyoxyethylene alkyl ether, 7 mole ethylene oxide adduct of C12-14 linear alcohol; trade name: Softanol 70 (manufactured by Nippon Shokubai Co., Ltd., active ingredient 100% by mass)
D-4) Polyoxyethylene alkyl ether, 9 mole ethylene oxide adduct of C12-15 linear alcohol; product name: Emulmin NL-90 (manufactured by Nippon Shokubai Co., Ltd., active ingredient 100% by mass)
D-5) Polyoxyethylene polyoxypropylene alkylamine (manufactured by Sanyo Chemical Industries, active ingredient 100% by mass)
D-6) Alkyl polyglucoside: C8-10 polyglucoside (condensation degree = 1.3-1.7); ALKYL POLYGLYCOSIDES APG 0810 (manufactured by Azelis Japan, active ingredient 65% by mass)
D-7) Lauryl dimethylamine oxide; trade name: GENAMINOX K-12 (manufactured by Global Amines Japan, active ingredient 32% by mass)
D-8) Alkylamine oxide: myristyldimethylamine oxide (manufactured by Lion Specialty Chemicals, active ingredient 25% by mass)
D-9) Coconut alkyl dihydroxyethylamine oxide; product name: GENAMINOX CHE (manufactured by Clariant Japan, active ingredient 37% by mass)
D-10) Coconut oil fatty acid diethanolamide (1:1); Amycol CDE-G (manufactured by Miyoshi Oil Co., Ltd., active ingredient 80% by mass)

[Component (E)]
Triethylene glycol dimethyl ether; product name: dimethyl triglycol (DMTG) (manufactured by Nippon Nyukazai Co., Ltd., active ingredient 100% by mass)
Diethylene glycol monobutyl ether; product name: Butycenol 20 (manufactured by KH Neochem, active ingredient 100% by mass)

[Component (F)]
・Water (ion-exchanged water)

The above results confirmed that Examples 1 to 11 exhibited excellent properties in terms of cleaning performance, sterilization performance, and storage stability.

On the other hand, Comparative Example 1 is an example in which the solvent component (E) is not included, and unlike the Examples, it was confirmed that sufficient cleaning performance and storage stability were not obtained.

Comparative Examples 2, 3, and 4 are examples in which the nonionic surfactant compound (C) is not contained, and unlike the Examples, it was confirmed that sufficient cleaning performance was not obtained.

Comparative Example 5 is an example of a case where the nonionic surfactant and amphoteric surfactant of component (D) are not contained, and unlike the Examples, it was confirmed that sufficient cleaning performance and storage stability were not obtained.

Comparative Example 6 is an example in which the anionic surfactant (A) component is not contained, and unlike the Examples, it was confirmed that sufficient cleaning performance was not obtained.

Comparative Example 7 is an example in which the long-chain alkyl di-short-chain alkyl hydroxyethyl ammonium salt of component (B) and the solvent of component (E) are not contained, and it was confirmed that sufficient effects were not obtained for either item.

Comparative Example 8 is an example in which the nonionic surfactant compound (C) and the solvent (E) are not included, and unlike the Examples, it was confirmed that sufficient cleaning performance was not obtained.

These results confirm that the liquid germicidal cleaner composition containing the combination of components (A) to (E) as active ingredients exhibits excellent properties in terms of cleaning performance, germicidal performance, and storage stability.

Claims (2)

A liquid germicidal cleaner composition for use on hard surfaces, comprising the following active ingredients (A) to (E) and water (but excluding pectic acid lyase) :
(A) an alkyl sulfonate, an alkyl ether sulfate, or a fatty acid salt;
(B) long-chain alkyl di-short-chain alkyl hydroxyethyl ammonium salt,
(C) C12-14 glucamide,
(D) at least one selected from polyoxyethylene alkyl ethers, polyoxyethylene polyoxypropylene alkyl amines, alkyl polyglucosides, and coconut alkyl dihydroxyethyl amine oxides;
(E) Glycol ether solvents. The composition according to claim 1, wherein the component (B) is selected from the group consisting of alkyl or alkenyl dimethylhydroxyethyl ammonium salts having an alkyl or alkenyl group having 10 to 16 carbon atoms.