CN108342263B

CN108342263B - Liquid detergent composition

Info

Publication number: CN108342263B
Application number: CN201810007377.8A
Authority: CN
Inventors: 矢野诚二; 季侃; 窪田裕一
Original assignee: Kao Corp
Current assignee: Kao Corp
Priority date: 2017-01-25
Filing date: 2018-01-04
Publication date: 2022-01-28
Anticipated expiration: 2038-01-04
Also published as: CN108342263A; WO2018139391A1

Abstract

The present invention provides a liquid detergent composition containing the following components (a) to (c): (a) an anionic surfactant having 12 to 18 carbon atoms excluding fatty acids, wherein the mass ratio (a-1)/(a) of the content of the sulfate salt as the component (a-1) to the content of the component (a) is 0.2 or more; (b) amine oxide type surfactants; and (c) a nonionic surfactant, wherein the content of the component (c) is 0.3% by mass or more, and the mass ratio of the content of the component (c) to the content of the component (a) is (c)/(a) 7 or less, and the mass ratio of the content of the component (c) to the content of the component (b) is (c)/(b) 10 or less. The liquid detergent composition according to the present invention has a strong smearing cleaning power for cooking oil stains, foams rapidly at hand washing and machine washing, and can be simply rinsed at the time of rinsing.

Description

Liquid detergent composition

Technical Field

The present invention relates to a liquid detergent composition, particularly to a liquid detergent composition for textile products such as clothes.

Background

As a method of washing laundry, there are roughly 2 types of washing methods, i.e., hand washing and washing machine washing.

In asian areas, the case of washing laundry by hand is high, and even in the case of washing by a washing machine, pre-washing by hand is often performed before washing by the washing machine.

This is because in asian areas, people often eat a large amount of oily food, and such cooking oil stains attached to clothes are difficult to effectively remove by means of a washing machine, and such cooking oil stains can be effectively removed only by rubbing with hands or by applying a clothes cleaning agent to the oil stains in advance for pretreatment and then washing in the washing machine.

In the field of detergents, the ability to clean stains, the abundance of foam during cleaning, and the ease of rinsing after cleaning are important issues. This is especially evident in hand washing against cooking oil stains.

In washing, since the cooking oil stain is very persistent, excellent cleaning ability is required for the cooking oil stain, and further, in hand washing, since sufficient foaming in scrubbing causes high cleaning ability to be thought of and affects the satisfaction of a detergent user, sufficient foaming ability is required. In addition, from the viewpoint of water saving and labor saving, it is strongly desired that the foam disappears rapidly during rinsing and the rinsing is completed with a small amount of water. The existing cleaning agent can not simultaneously take into account the three points of dirt, especially the cleaning capability of cooking oil stain, the richness of foam during cleaning and the easy rinsing property after cleaning in the washing process, so that a new technology which can take into account the three points is sought.

Patent document 1 discloses that a liquid detergent composition for kitchen use containing an alkyl (C10 to 18) amine oxide and a polyoxyethylene alkyl (C10 to 20) ether sulfate having an average addition mole number of 0.5 to 5 can provide excellent cleaning power, rinsing property, and storage stability at low temperature, but does not suggest any technique for using a hydrocarbyl sulfate or a hydrocarbyl sulfonate.

Patent document 2 discloses that a liquid detergent composition containing an alkyl or hydroxyalkyl (C10 to 18) amine oxide and a specific polyoxyalkylene alkyl ether sulfate can provide high cleaning ability and advantageous effects of storage stability at low temperatures, but does not suggest any technique for using a hydrocarbyl sulfate or a hydrocarbyl sulfonate.

Documents of the prior art

Patent document

Patent document 1: JP 2012 12436A

Patent document 2: US 8071521B 1

Disclosure of Invention

The present inventors have made special studies and as a result have found that a composition containing: the present invention has been completed by finding that a liquid detergent composition which contains, as essential components, an anionic surfactant [ (a) component having 12 to 18 carbon atoms excluding fatty acids, [ b ] a specific amine oxide surfactant [ (b) component ] and a nonionic surfactant [ (c) component ], wherein the mass ratio of the content of a sulfate ester salt in the (a) component to the content of the (a) component is 0.2 or more, the content of the (c) component is 0.3% by mass or more, the mass ratio of the content of the (c) component to the content of the (a) component (c)/(a) is 7 or less, and the mass ratio of the content of the (c) component to the content of the (b) component (c)/(b) is 10 or less, is excellent in cleaning ability against greasy dirt, foaming properties and rinsing properties, and particularly exhibits excellent cleaning ability against cooking greasy dirt.

The present invention provides a liquid detergent composition containing the following components (a) to (c):

(a) an anionic surfactant having 12 to 18 carbon atoms excluding fatty acids, wherein the mass ratio of the content of the sulfate salt as the component (a-1) to the content of the component (a) is 0.2 or more;

(b) an amine oxide surfactant represented by the following general formula (1),

R¹represents a linear or branched, saturated or unsaturated hydrocarbon group having 6 to 10 carbon atoms, R²Represents an alkylene group having 1 to 3 carbon atoms, R³、R⁴Independently of each other, an alkyl group or a hydroxyalkyl group having 1 to 3 carbon atoms; or R³、R⁴An alkylene group or a hydroxyalkylene group having 1 to 3 carbon atoms, each independently bonded to each other through a hetero atom, X represents a group selected from-COO-, -CONH-, and-O-, and m is a number of 0 or 1;

(c) a non-ionic surfactant, a surfactant,

wherein the content of the component (c) is 0.3% by mass or more, and the mass ratio of the content of the component (c) to the content of the component (a), (c)/(a) is 7 or less, and the mass ratio of the content of the component (c) to the content of the component (b), (c)/(b) is 10 or less.

According to the present invention, it is possible to provide a liquid detergent composition which not only has high smear cleaning power on oily stains, particularly cooking oily stains, but also is rich in foam at the time of cleaning, and rapidly disappears at the time of rinsing, enabling rinsing to be performed quickly and easily. The effects of the present invention can be obtained even when cleaning and rinsing are performed with high-hardness washing water.

Detailed Description

The components contained in the liquid detergent composition of the present invention will be described in detail below.

< ingredient (a) >

(a) The component (a) is an anionic surfactant having 12-18 carbon atoms and not including fatty acid, wherein the mass ratio ((a-1)/(a)) of the content of the sulfate [ hereinafter referred to as component (a-1) ] to the content of component (a) is 0.2 or more.

The component (a-1) is an alkyl or alkenyl sulfate having an alkyl or alkenyl group having 12 to 18 carbon atoms.

Further, from the viewpoint of improving the easy-to-rinse property in which the foam disappears rapidly during rinsing and the wiping power against oily stains, it is preferable that the component (a) contains an alkyl or alkenyl sulfate salt having an alkyl or alkenyl group having 16 to 18 carbon atoms [ hereinafter referred to as the component (a-1-3) and is contained in the component (a-1) ]. Further, it is more preferable that the component (a) contains an alkyl sulfate having an alkyl group and 16 carbon atoms.

Further, when the component (a) contains the component (a-1-3), the mass ratio ((a-1-3)/(a)) of the content of the component (a-1-3) to the content of the component (a) in the present invention is preferably 0.03 or more, more preferably 0.07 or more, further preferably 0.13 or more, even more preferably 0.2 or more, and from the viewpoint of excellent foamability, preferably 1 or less, more preferably 0.43 or less, and even more preferably 0.33 or less, from the viewpoint of compatibility between the easy-to-rinse property in which foam disappears rapidly at the time of rinsing and the smear cleaning power against oily stains. Thus, the mass ratio of the content of the component (a-1-3) to the content of the component (a) ((a-1-3)/(a)) is preferably 0.03 to 1, more preferably 0.03 to 0.43, even more preferably 0.07 to 0.33, even more preferably 0.13 to 0.33, and even more preferably 0.2 to 0.33, from the viewpoints of excellent rinsability, excellent smear cleaning power for oily stains, and excellent foamability, in which foams rapidly disappear during rinsing.

The component (a) may contain an anionic surfactant having 12 to 18 carbon atoms other than the component (a-1), for example, 1 or 2 or more selected from the group consisting of an α -olefin sulfonate [ hereinafter referred to as (a-2) ], a paraffin sulfonate [ hereinafter referred to as (a-3) ], a polyoxyethylene alkyl sulfate [ hereinafter referred to as (a-4) ], and an alkylbenzene sulfonate [ hereinafter referred to as (a-5) ], from the viewpoint of improving the ease of rinsing in which the foam rapidly disappears during rinsing and the wiping power against oily stains.

From the same viewpoint as above, the component (a-2) is preferably an α -olefin sulfonate having an alkenyl group having 14 to 16 carbon atoms; the component (a-3) is preferably a paraffin sulfonate in which the alkyl group has 12 to 18 carbon atoms; the component (a-4) is preferably a polyoxyethylene alkylsulfate salt in which the alkyl group has 12 to 18 carbon atoms and the average molar number of addition of ethylene oxide is 1 to 3; the component (a-5) is preferably an alkylbenzene sulfonate having an alkyl group with 12 to 14 carbon atoms.

The counter ion of the anionic surfactant is 1 or 2 or more selected from alkali metal ions, alkaline earth metal ions, ammonium ions and alkylolammonium ions, and more preferably 1 or 2 or more selected from alkali metal ions, from the viewpoint of further improving foaming properties and cleaning power by spreading.

The alkali metal ion is preferably 1 or 2 selected from sodium ion and potassium ion, and more preferably sodium ion, from the viewpoint of further improving the foaming property and the smear cleaning power.

Specific examples of the component (a-1) include sodium lauryl sulfate, sodium tetradecyl sulfate, sodium hexadecyl sulfate, sodium octadecyl sulfate; examples of the component (a-1-3) include sodium hexadecyl sulfate and sodium octadecyl sulfate. Specific examples of the component (a-2) include sodium alpha-olefin sulfonate having 14 to 16 carbon atoms. Specific examples of the component (a-3) include secondary sodium alkylsulfonates having 13 to 17 carbon atoms. Specific examples of the component (a-4) include sodium laureth sulfate and the like, polyoxyethylene (EO average molar number of addition: 3). Specific examples of the component (a-5) include sodium dodecylbenzenesulfonate and the like.

(a) The component (a) may be 1 or 2 or more selected from the component (a-1), or 1 or 2 or more selected from the component (a-1) may be used in appropriate combination with 1 or 2 or more selected from the component (a-2), the component (a-3), the component (a-4) and the component (a-5), and the mass ratio of the content of the component (a-1) to the content of the component (a) ((a-1)/(a)) in the component (a) is 0.2 or more.

It is preferable to use 2 or more selected from the (a-1) component in combination, and it is more preferable to use the (a-1-3) component and 2 or more selected from the (a-1) component excluding the (a-1-3) component in combination.

The mass ratio ((a-1)/(a)) of the content of the component (a-1) to the content of the component (a) is preferably 0.35 or more, more preferably 0.45 or more, and still more preferably 0.55 or more, from the viewpoint of easy rinsability in which foam rapidly disappears during rinsing.

The content of the component (a) in the liquid detergent composition of the present invention is preferably 0.75% by mass or more, more preferably 1% by mass or more, even more preferably 2% by mass or more, even more preferably 3% by mass or more, even more preferably 5% by mass or more, and further preferably 25% by mass or less, and even more preferably 20% by mass or less, from the viewpoint of compatibility between foaming properties, easy-to-rinse properties in which foam rapidly disappears during rinsing, and wiping detergency. From these viewpoints, the content of the component (a) in the liquid detergent composition of the present invention is preferably 0.75 to 25% by mass, more preferably 1 to 20% by mass, even more preferably 2 to 20% by mass, and even more preferably 5 to 20% by mass.

< ingredient (b) >

(b) The component (A) is an amine oxide surfactant having a hydrocarbon group having 6 to 10 carbon atoms. The hydrocarbon group having 6 to 10 carbon atoms includes an alkyl group or an alkenyl group having 6 to 10 carbon atoms, and these may be linear or branched. The component (b) is preferably an amine oxide surfactant having a hydrocarbon group having 8 to 10 carbon atoms, more preferably an amine oxide surfactant having a hydrocarbon group having 8 carbon atoms, from the viewpoint of easy-to-rinse property for rapidly removing foam during rinsing and further excellent detergency for smearing oil stains.

The amine oxide surfactant of the present invention includes a compound represented by the following general formula (1).

R¹Represents a linear or branched, saturated or unsaturated hydrocarbon group having 6 to 10 carbon atoms, R²Represents an alkylene group having 1 to 3 carbon atoms, R³、R⁴Independently of each other, an alkyl group or a hydroxyalkyl group having 1 to 3 carbon atoms; or R³、R⁴Each independently represents an alkylene group or hydroxyalkylene group having 1 to 3 carbon atoms bonded to each other through a hetero atom, X represents a group selected from the group consisting of-COO-, -CONH-, and-O-, and m is a number of 0 or 1.

In the general formula (1), R is R from the viewpoint of easy rinsing property for rapidly disappearing foam at the time of rinsing and further excellent smear cleaning power for greasy dirt¹The alkyl group is preferably a linear or branched alkyl group or alkenyl group, more preferably a linear alkyl group or alkenyl group, still more preferably a linear alkyl group, and yet more preferably a primary alkyl group.

In addition, R is an index for easy rinsing property in which foam disappears rapidly during rinsing and for more excellent smear cleaning power against oily stains¹The number of carbon atoms of (a) is 6 or more, preferably 8 or more, and from the same viewpoint is 10 or less, and from the same viewpoint is 6 to 10, preferably 8 to 10, and more preferably 8.

Preferable examples of the compound of the component (b) include R in the general formula (1)¹Is a linear alkyl group with 6-10 carbon atoms, R³、R⁴Are all provided withA methyl group; or R³、R⁴Among these compounds, those which are bonded to each other through oxygen atoms and are all ethylene groups, and m is 0 are preferably 1 or 2 or more selected from hexyldimethylamine oxide, octyldimethylamine oxide, decyldimethylamine oxide, and N-decyldymorpholine-N-oxide, more preferably 1 or 2 or more selected from octyldimethylamine oxide, decyldimethylamine oxide, and N-decyldymorpholine-N-oxide, and even more preferably octyldimethylamine oxide, from the viewpoint of easy rinsability which allows foams to disappear rapidly during rinsing and further excellent smear cleaning power.

(b) The component (A) may be used alone in 1 kind, or may be used in combination of 2 or more kinds. Among them, from the viewpoint of compatibility between easy-to-rinse property in which foam rapidly disappears during rinsing and smear detergency, it is more preferable to use an amine oxide surfactant having an alkyl group having 6 to 10 carbon atoms alone or a combination of 2 or more amine oxide surfactants having an alkyl group having 6 to 10 carbon atoms.

The content of the component (b) in the liquid detergent composition of the present invention is preferably 0.3% by mass or more, more preferably 0.5% by mass or more, further preferably 1% by mass or more, further preferably 1.5% by mass or more, further preferably 2% by mass or more, and preferably 6% by mass or less, more preferably 5% by mass or less, further preferably 3% by mass or less, from the viewpoint of easy rinsability that allows quick disappearance of foam at the time of rinsing and further excellent smear cleaning power. From these viewpoints, the content of the component (b) in the liquid detergent composition of the present invention is preferably 0.3 to 6% by mass, more preferably 0.3 to 5% by mass, even more preferably 0.5 to 3% by mass, even more preferably 1 to 3% by mass, even more preferably 1.5 to 3% by mass, and even more preferably 2 to 3% by mass.

The total content of the component (a) and the component (b) is preferably 2 mass% or more, more preferably 3 mass% or more, even more preferably 5 mass% or more, even more preferably 7 mass% or more, and preferably 30 mass% or less, even more preferably 25 mass% or less, and even more preferably 20 mass% or less, from the viewpoint of the smear cleaning power and the foamability against the cooking oil stain. From these viewpoints, in the liquid detergent composition of the present invention, (a) + (b) is preferably 2 to 30% by mass, more preferably 2 to 25% by mass, even more preferably 3 to 25% by mass, even more preferably 5 to 20% by mass, and even more preferably 7 to 20% by mass.

< ingredient (c) >

In the liquid detergent composition of the present invention, (c) a nonionic surfactant is contained.

Examples of the nonionic surfactant as the component (c) include: 1 or 2 or more selected from polyoxyalkylene alkyl ether, polyoxyalkylene alkenyl ether, alkyl polyglucoside, alkyl glucoside, sucrose fatty acid ester, polyglycerin fatty acid ester, fatty acid monoethanolamide, fatty acid diethanolamide, polyoxyethylene hydrogenated castor oil, polyoxyethylene sorbitan fatty acid ester, polyoxyethylene sorbitol fatty acid ester, and alkyl saccharide surfactant. Among them, from the viewpoint of detergency against stains such as oil stains and product stability, 1 or 2 or more species selected from polyoxyalkylene alkyl ethers, fatty acid monoethanolamides, and fatty acid diethanolamides are preferable, and 1 or 2 or more species selected from polyoxyalkylene alkyl ethers and fatty acid monoethanolamides are more preferable. From the viewpoint of easy rinsing, polyoxyalkylene alkyl ether is more preferable.

The alkyl group of the polyoxyalkylene alkyl ether is preferably linear from the viewpoint of detergency against stains such as cooking oil stains and product stability.

The alkylene group of the polyoxyalkylene alkyl ether is preferably 1 or 2 selected from ethylene and propylene, and more preferably ethylene, from the viewpoint of detergency against stains such as cooking oil stains and product stability.

The polyoxyalkylene alkyl ether preferably has an alkyl group having 8 or more carbon atoms, more preferably 10 or more carbon atoms, and still more preferably 12 or more carbon atoms, from the viewpoint of detergency against stains such as cooking oil stains and product stability, and from the same viewpoint, preferably has 18 or less carbon atoms, more preferably 16 or less carbon atoms, and still more preferably 14 or less carbon atoms.

The number of moles of oxyalkylene groups added of the polyoxyalkylene alkyl ether is preferably 1 or more, more preferably 5 or more, and still more preferably 10 or more, from the viewpoint of detergency against stains such as cooking oil stains and product stability, and is preferably 30 or less, more preferably 25 or less, and still more preferably 21 or less from the same viewpoint.

From the viewpoint of detergency against stains such as cooking oil stains and product stability, the fatty acid monoethanolamide is preferably 1 or 2 or more selected from amides of fatty acids and monoethanols having a hydrocarbon group with a carbon number of 7 or more and 21 or less, more preferably 1 or 2 selected from coconut fatty acid monoethanolamides and palm kernel oil fatty acid monoethanolamides, and still more preferably coconut fatty acid monoethanolamides.

The content of the nonionic surfactant as the component (c) in the present invention is preferably 16% by mass or less, more preferably 15% by mass or less, even more preferably 10% by mass or less, even more preferably 9% by mass or less, even more preferably 6% by mass or less, even more preferably 4% by mass or less, and even more preferably 1% by mass or less, from the viewpoint of providing excellent rinsing property for quickly removing foam during rinsing and further providing excellent detergency for the spread of oily soil on the surface of a cooked food.

On the other hand, the content of the nonionic surfactant as the component (c) in the present invention is preferably 0.3% by mass or more, more preferably 0.6% by mass or more, from the viewpoint of foaming property at the time of washing in a washing machine.

From the viewpoint of compatibility between easy-to-rinse property in which foam rapidly disappears during rinsing and smearing detergency on cooking oil stains, the mass ratio of the content of the nonionic surfactant as the component (c) to the content of the component (a) in the present invention (c)/(a) is preferably 7 or less, more preferably 4.4 or less, and further preferably 2.3 or less.

On the other hand, from the viewpoint of foaming properties during washing in a washing machine, the mass ratio of the content of the nonionic surfactant as the component (c) to the content of the component (a) in the present invention, (c)/(a) is preferably 0.02 or more, more preferably 0.04 or more.

From the viewpoint of more excellent ease of rinsing with which the foam disappears rapidly during rinsing and excellent detergency for smearing the cooked-stain, the mass ratio of the content of component (c) to the content of component (b) in the present invention is (c)/(b) 10 or less, more preferably 6 or less, and still more preferably 2.7 or less.

On the other hand, from the viewpoint of foaming properties during washing in a washing machine, the mass ratio of the content of component (c) to the content of component (b) in the present invention, (c)/(b) is preferably 0.1 or more, more preferably 0.2 or more.

< ingredient (d) >

The liquid detergent composition of the present invention may further contain an appropriate amount of (d) a water-miscible organic solvent. The component (d) may be any water-miscible organic solvent commonly used in detergent compositions, and is preferably a water-miscible organic solvent having 1 or 2 groups selected from a hydroxyl group and an ether group. The water-miscible organic solvent as used herein means an organic solvent in which 50g or more is dissolved in 1L of deionized water at 25 ℃, that is, an organic solvent in which 50g/L or more is dissolved in water.

Examples of the water-miscible organic solvent as the component (d) include (1) alkanols; (2) alkylene glycols having 2 to 6 carbon atoms such as ethylene glycol, propylene glycol, butylene glycol, or hexylene glycol, or glycerols (hereinafter, referred to as glycols in some cases); (3) polyalkylene glycols comprising alkylene glycol units having 2 to 4 carbon atoms; (4) (poly) alkylene glycol (mono-or di-) alkyl ethers (hereinafter, also referred to as alkyl ethers) comprising (poly) alkylene glycols having 2 to 4 carbon atoms of alkylene glycol units and alkanols having 1 to 5 carbon atoms, such as diethylene glycol monomethyl ether, diethylene glycol dimethyl ether, triethylene glycol monomethyl ether, diethylene glycol monoethyl ether, diethylene glycol diethyl ether, dipropylene glycol monomethyl ether, dipropylene glycol monoethyl ether, tripropylene glycol monomethyl ether, diethylene glycol monobutyl ether, 1-methoxy-2-propanol, or 1-ethoxy-2-propanol; (5) alkyl glyceryl ethers having an alkyl group having 1 to 8 carbon atoms; (6) aromatic ethers of (poly) alkylene glycol having alkylene glycol units having 2 to 3 carbon atoms.

From the viewpoint of achieving excellent solubility and product stability, it is preferable to use 1 or more selected from the above-described categories (1) to (6) as the component (d), and it is more preferable to use a solvent selected from the above-described categories (1) of alkanols, (2) glycols, (4) of alkyl ethers, and (6) of aromatic ethers. In the present invention, specific preferable examples thereof include 1 or 2 selected from propylene glycol and diethylene glycol monobutyl ether.

From the viewpoint of smear cleaning power on cooking oil stains, it is preferable that the content of the (d) water-miscible organic solvent in the liquid detergent composition of the present invention is as small as possible. Specifically, in the liquid detergent composition of the present invention, the content of the component (d) is preferably 10% by mass or less, more preferably 9% by mass or less, further preferably 7% by mass or less, further preferably 5% by mass or less, further preferably 1% by mass or less, further preferably 0.1% by mass or less, further preferably 0.01% by mass or less, further preferably 0% by mass, that is, further preferably not contained.

The ratio of the content of the component (d) to the total of the content of the components (a) and (b) is, from the viewpoint of the smear cleaning power on the cooking oil stain, (d)/((a) + (b)) is 0.5 or less, preferably 0.4 or less, more preferably 0.3 or less, still more preferably 0.1 or less, still more preferably 0.01 or less, and still more preferably 0.

< other ingredients >

In the liquid detergent composition of the present invention, other components may be added in addition to the above components within a range not impairing the object or effect of the present invention. As other components, for example: an anionic surfactant other than the component (a) of the present invention, and an amphoteric surfactant other than the component (b) of the present invention; and optional components such as chelating agents, foam boosters, builders, rust inhibitors, viscosity modifiers, pH regulators, antioxidants, antibacterial and antifungal agents, preservatives, coloring agents, perfumes, and the like, which are generally used in liquid detergent compositions.

Examples of the anionic surfactant other than the component (a) of the present invention include: sodium 2-ethylhexyl sulfate, sodium decyl sulfate, and the like.

The amphoteric surfactant other than the component (b) of the present invention includes, for example: alkyl amine oxides such as dodecyl dimethyl amine oxide, tetradecyl dimethyl amine oxide, and hexadecyl dimethyl amine oxide; and alkyl imidazoline betaines such as lauryl imidazoline betaine and coco imidazoline betaine; amidopropyl betaines such as lauramidopropyl betaine, palm kernel oil fatty acid amidopropyl betaine, and coconut oil fatty acid amidopropyl betaine; alkyl sulfobetaines such as lauryl ethoxy sulfobetaine and stearyl ethoxy sulfobetaine; hydroxy sulfobetaines such as coconut oil fatty acid hydroxy sulfobetaine, lauryl hydroxy sulfobetaine, and tetradecyl hydroxy sulfobetaine; alkyl carboxybetaines such as dilauryl dimethyl carboxybetaine and stearyl hexyl methyl carboxybetaine.

Examples of the chelating agent include: ethylenediaminetetraacetic acid, phosphonates, and the like.

Examples of the foam enhancer include: fatty acid alkanolamides, and the like.

Examples of the builder include: sodium tripolyphosphate, sodium silicate, sodium carbonate, sodium sulfate, sodium citrate, sodium polyacrylate and the like.

Examples of the rust inhibitor include: pentaerythritol esters, phytates, and the like.

Examples of the viscosity modifier include: hydroxyethyl cellulose, methyl cellulose, carboxyvinyl polymers, and the like.

Examples of the pH adjuster include: sodium hydroxide, potassium hydroxide, alkanolamines, sulfuric acid, hydrochloric acid, citric acid, lactic acid, tartaric acid, oxalic acid, malic acid, and the like.

Examples of the antioxidant include: butyl hydroxy toluene, distyrenated cresol, sodium sulfite, sodium bisulfite and the like.

Examples of the antibacterial and antifungal agents include: silver ion antibacterial agent, zinc oxide, copper oxide, ammonium dihydrogen phosphate, lithium carbonate, vanillin or vinyl vanillin compound, etc.

Examples of the preservative include: methyl paraben, butyl paraben, 1, 2-benzothiazolin-3-one, and the like.

In the liquid detergent composition of the present invention, the remaining amount of the components (a) to (d) and optional components may be water. As the water, water having no influence on the composition, such as deionized water, is preferable.

In addition, the liquid detergent composition of the present invention has a pH value at 25 ℃ of preferably 7 or less, more preferably 6 or less, and even more preferably 5 or less, from the viewpoints of a smear cleaning power for cooking oil stains, easy-to-rinse property in which foam disappears rapidly during rinsing, and foaming property during hand washing. From the viewpoint of use in rinsing, the liquid detergent composition of the present invention has a pH value at 25 ℃ of preferably 1 or more, more preferably 3 or more, and still more preferably 3.5 or more. The pH can be adjusted by using the above-mentioned pH adjusting agent.

In the case where the liquid detergent composition of the present invention further optionally contains an amphoteric surfactant other than the component (b), the mass ratio of the content of the component (b) to the total content of the amphoteric surfactants other than the components (b) is preferably 0.2 or more, more preferably 0.4 or more, further preferably 0.6 or more, further preferably 0.8 or more, and preferably less than 1, from the viewpoint that the rinsing property at the time of rinsing becomes good.

In the present invention, the total content of the surfactants other than fatty acids is 2 to 40% by mass, preferably 5 to 32.5% by mass, and more preferably 7 to 25% by mass. Here, "surfactant other than fatty acid" means all surfactants other than fatty acid contained in the liquid detergent composition of the present invention.

The liquid detergent composition of the present invention can be produced by appropriately mixing the respective components.

Embodiments of the present invention are described below.

[1] A liquid detergent composition comprising the following components (a) to (c):

(a) an anionic surfactant having 12 to 18 carbon atoms excluding fatty acids, wherein the mass ratio (a-1)/(a) of the content of the sulfate salt as the component (a-1) to the content of the component (a) is 0.2 or more;

(b) an amine oxide surfactant represented by the following general formula (1),

(c) a non-ionic surfactant, a surfactant,

[2] The liquid detergent composition according to [1], wherein the sulfate salt as the component (a-1) is an alkyl sulfate salt or an alkenyl sulfate salt having an alkyl group or an alkenyl group having 12 to 18 carbon atoms.

[3] The liquid detergent composition according to [1] or [2], wherein the component (a) contains an alkyl sulfate or alkenyl sulfate having 16 or more and 18 or less carbon atoms in an alkyl group or an alkenyl group as the component (a-1-3).

[4] The liquid detergent composition according to [3], wherein the mass ratio of the content of the component (a-1-3) to the content of the component (a) is preferably 0.03 or more, more preferably 0.07 or more, further preferably 0.13 or more, further preferably 0.2 or more, and preferably 1 or less, more preferably 0.43 or less, further preferably 0.33 or less, and further preferably 0.03 to 1, more preferably 0.03 to 0.43, further preferably 0.07 to 0.33, further preferably 0.13 to 0.33, and further preferably 0.2 to 0.33.

[5] The liquid detergent composition according to any one of the above [1] to [4], further comprising 1 or 2 or more selected from the group consisting of an α -olefin sulfonate, a paraffin sulfonate, a polyoxyethylene alkyl sulfate salt, and an alkylbenzene sulfonate in the component (a).

[6] The liquid detergent composition according to any one of the above [1] to [5], wherein the counter ion of the anionic surfactant is 1 or 2 or more selected from alkali metal ions, alkaline earth metal ions, ammonium ions and alkanolammonium ions, and more preferably 1 or 2 or more selected from alkali metal ions.

[7] The liquid detergent composition according to [6], wherein the alkali metal ion is preferably 1 or 2 selected from sodium ion and potassium ion, and more preferably sodium ion.

[8] The liquid detergent composition according to any one of [1] to [7], wherein the mass ratio ((a-1)/(a)) of the content of the component (a-1) to the content of the component (a) is preferably 0.35 or more, more preferably 0.45 or more, and further preferably 0.55 or more.

[9] The liquid detergent composition according to any one of [1] to [8], wherein the component (b) is preferably 1 or 2 or more selected from the group consisting of hexyldimethylamine oxide, octyldimethylamine oxide, decyldimethylamine oxide, and N-decyldorpholine-N-oxide, more preferably 1 or 2 or more selected from the group consisting of octyldimethylamine oxide, decyldimethylamine oxide, and N-decyldorpholine-N-oxide, and still more preferably octyldimethylamine oxide.

[10] The liquid detergent composition according to any one of [1] to [9], wherein the total content of the component (a) and the component (b), (a) + (b) is preferably 2% by mass or more, more preferably 3% by mass or more, more preferably 5% by mass or more, further preferably 7% by mass or more, and preferably 30% by mass or less, more preferably 25% by mass or less, more preferably 20% by mass or less, and preferably 2 to 30% by mass, more preferably 2 to 25% by mass, more preferably 3 to 25% by mass, further preferably 5 to 20% by mass, and further preferably 7 to 20% by mass.

[11] The liquid detergent composition according to any one of [1] to [10], wherein the nonionic surfactant (c) is preferably 1 or 2 or more selected from polyoxyalkylene alkyl ethers, polyoxyalkylene alkenyl ethers, alkyl polyglucosides, alkyl glucosides, sucrose fatty acid esters, polyglycerol fatty acid esters, fatty acid monoethanolamides, fatty acid diethanolamides, polyoxyethylene hydrogenated castor oils, polyoxyethylene sorbitan fatty acid esters, polyoxyethylene sorbitol fatty acid esters, and alkyl saccharide surfactants, more preferably 1 or 2 or more selected from polyoxyalkylene alkyl ethers, fatty acid monoethanolamides, and fatty acid diethanolamides, and still more preferably 1 or 2 or more selected from polyoxyalkylene alkyl ethers and fatty acid monoethanolamides.

[12] The liquid detergent composition according to any one of [1] to [11], wherein (c)/(a) is preferably 4.4 or less, more preferably 2.3 or less, and preferably 0.02 or more, more preferably 0.04 or more, as a mass ratio of the content of the component (c) to the content of the component (a).

[13] The liquid detergent composition according to any one of [1] to [12], wherein (c)/(b) is preferably 6 or less, more preferably 2.7 or less, and preferably 0.1 or more, more preferably 0.2 or more, as a mass ratio of the content of the component (c) to the content of the component (b).

[14] The liquid detergent composition according to any one of [1] to [13], further comprising an amphoteric surfactant other than the component (b).

[15] The liquid detergent composition according to [14], wherein the mass ratio of the content of the component (b) to the total content of the amphoteric surfactants other than the components (b) and (b) is preferably 0.2 or more, more preferably 0.4 or more, still more preferably 0.6 or more, still more preferably 0.8 or more, and preferably less than 1.

[16] The liquid detergent composition according to any one of [1] to [15], further comprising (d) a water-miscible organic solvent.

[17] The liquid detergent composition according to [16], wherein the mass ratio of the content of the component (d) to the total content of the components (a) and (b), (d)/((a) + (b)) is 0.5 or less, preferably 0.4 or less, more preferably 0.3 or less, further preferably 0.1 or less, further preferably 0.01 or less, and further preferably 0.

[18] The liquid detergent composition according to any one of [1] to [17], wherein the content of the component (a) is preferably 0.75% by mass or more, more preferably 1% by mass or more, further preferably 2% by mass or more, further preferably 3% by mass or more, further preferably 5% by mass or more, further preferably 25% by mass or less, further preferably 20% by mass or less, and preferably 0.75 to 25% by mass, more preferably 1 to 20% by mass, further preferably 2 to 20% by mass, further preferably 5 to 20% by mass.

[19] The liquid detergent composition according to any one of [1] to [18], wherein the content of the component (b) is preferably 0.3% by mass or more, more preferably 0.5% by mass or more, further preferably 1% by mass or more, further preferably 1.5% by mass or more, further preferably 2% by mass or more, and preferably 6% by mass or less, more preferably 5% by mass or less, further preferably 3% by mass or less, and preferably 0.3 to 6% by mass, more preferably 0.3 to 5% by mass, further preferably 0.5 to 3% by mass, further preferably 1 to 3% by mass, further preferably 1.5 to 3% by mass, and further preferably 2 to 3% by mass.

[20] The liquid detergent composition according to any one of [1] to [19], wherein the content of the component (c) is preferably 0.6% by mass or more, and is preferably 16% by mass or less, more preferably 10% by mass or less, further preferably 6% by mass or less, and further preferably 1% by mass or less.

[21] The liquid detergent composition according to any one of [1] to [20], wherein the content of the component (d) is preferably 10% by mass or less, more preferably 9% by mass or less, still more preferably 7% by mass or less, even more preferably 5% by mass or less, yet more preferably 1% by mass or less, yet more preferably 0.1% by mass or less, yet more preferably 0.01% by mass or less, and yet more preferably 0% by mass. .

[22] The liquid detergent composition according to any one of the above [1] to [21], wherein the total content of the surfactants other than the fatty acid is 2 to 40% by mass, preferably 5 to 32.5% by mass, and more preferably 7 to 25% by mass.

[23] The liquid detergent composition according to any one of [1] to [22], wherein the pH value at 25 ℃ is 7 or less, preferably 6 or less, and more preferably 5 or less.

[24] A washing method, wherein the liquid detergent composition according to any one of the above [1] to [23] is applied to a textile product having oily soil and washed.

[25] A washing method wherein the liquid detergent composition according to any one of the above [1] to [23] is applied to clothes having greasy dirt and washed.

The liquid detergent composition of the present invention can be suitably used for textile products such as clothes, bedding, and fabric, and is preferably used as a detergent for clothes.

Examples

Hereinafter, embodiments of the present invention will be further described and disclosed by way of examples. The examples are merely illustrative of the invention and are not intended to be limiting in any way. Using the components shown in the following table, liquid detergent compositions of examples and comparative examples were obtained. The amounts of the respective components in the table are expressed in mass% as effective components, and the balance is deionized water. The values of the mass ratios of the components in the table are shown with the denominator (/1) omitted.

The compositions of examples and comparative examples were obtained by mixing the components shown in tables 1 to 6. The following evaluations were carried out using each of the obtained compositions. The results are shown in tables 1 to 6.

[ method for preparing "Cotton half-sleeved shirts for evaluation >

The cotton half-sleeved shirts for evaluation were prepared in the following manner. Specifically, 2.5kg of a commercially available cotton half-sleeved shirt (manufactured by Shanghai Three Gun Gun Co., Ltd., round collar, size: L, cotton content: 100%) was placed in a Washing Machine (Qingdao Haier Washing Machine Co., Ltd., specification: XQS60-ZY1128), detergent was added thereto, and hard water (CaCl was converted to 89.5mg/L in terms of calcium carbonate) was added at a temperature of 20 ℃. (CaCl was converted to CaCl)₂With MgCl₂·6H₂O was mixed at a molar ratio of 6: 4), washing was repeated 5 times with the following conditions set. The conditions for each wash were: water amount 54L, detergent amount 27g (i.e., the amount of detergent used relative to the amount of water (detergent (g)/water (L)) was 0.5g/L), washing time 12 minutes, rinsing with water 2 times, and dewatering for 5 minutes. The detergent was a mixture of a nonionic surfactant (polyoxyethylene alkyl ether having an average of 6 moles of oxyethylene groups added to a primary alcohol having an alkyl group having 12 carbon atoms, trade name: EMULGEN 108) and amorphous sodium silicate and sodium carbonate at a mass ratio of 1:1: 3.

The cotton half-sleeve shirt subjected to the final dehydration was put in a two-tub washing machine (manufactured by Songhua Co., Ltd., XPB52-500S), rinsed with running water using hard water at a temperature of 20 ℃ in terms of calcium carbonate to 89.5mg/L until no foam was formed, dehydrated for 5 minutes, and then naturally dried to obtain an "evaluation cotton half-sleeve shirt".

< method for measuring basicity >

The method for measuring the alkalinity of water used for preparing the water dilution is shown below (hereinafter, the alkalinity of the present invention refers to a value measured by this method unless otherwise specified).

100mL of test water was taken in a 200mL beaker, and 0.15mL of bromocresol green-methylred ethanol solution (Wako pure chemical industries, Ltd.) was added as an indicator. When residual chlorine was present in the test water, a sodium thiosulfate solution (0.3 w/v%) was added to 100mL of the test water in advance to remove the residual chlorine. The solution was stirred slowly and titrated with 10mmol/L sulfuric acid until the color of the solution changed from blue to purple. The basicity was calculated by the following formula.

Alkalinity (CaCO)₃mg/L)＝a×10

In the formula, a: titration of the required 10mmol/L sulfuric acid (mL)

When the color of a colored sample or the like is not changed significantly by adding an indicator, a quantity (mL) of 10mmol/L sulfuric acid required for the pH to reach 4.8 is defined as a by using a pH meter instead of the indicator.

< method for evaluating foamability during washing in washing machine >

Three cotton half-sleeve shirts for evaluation were placed in a vertical washing Machine (Qingdao HaierWashing Machine Co., Ltd., specification: XQS60-ZY1128), the water washing pattern was adjusted to 22L, 22g of each of the compositions prepared in examples and comparative examples was added, and the water temperature was 20 ℃ and the calcium carbonate concentration was 179mg/L (this hard water corresponds to 10 ℃ DH in Germany hardness tester) and the alkalinity was 65CaCO₃Hard water [ to calcium chloride (CaCl) ] of mg/L and pH7.1₂·2H₂O)1.57g with magnesium sulfate (MgSO₄·6H₂O)1.45g and sodium bicarbonate (NaHCO)₃)1.6g deionized water 10L adjusted with hydrochloric acid, Ca/Mg 6/4 (molar ratio)]And automatically washing by a washing machine (washing time is 10 minutes, water storage rinsing is carried out for 2 times, and dehydration is carried out for 2 minutes). After 5 minutes from the start of the wash, once discontinued, a straight edge was inserted slightly across the foam to scrape the foam off of the surface, and the height from the water surface to the upper end of the foam was measured and marked in centimeters (cm).

If the foam is too small and does not cover the water surface, the ratio of "the area of the water surface covered with the foam" to "the entire area of the water surface" is denoted by "%".

The case where foam was not confirmed is marked with "none". In this case, the larger the value, the more preferable.

< evaluation method of foaming Property in hand washing >

Towards a circular washbasin (bottom inner diameter 28cm, surface inner diameter 35cm,Height of 13.5cm), water temperature of 20 deg.C, 179mg/L calcium carbonate (this hard water is equivalent to 10 degree DH in Germany hardness tester), and alkalinity of 65CaCO₃Hard water [ to calcium chloride (CaCl) ] of mg/L and pH7.1₂·2H₂O)1.57g with magnesium sulfate (MgSO₄·6H₂O)1.45g and sodium bicarbonate (NaHCO)₃)1.6g of hard water prepared by adding deionized water to 10L and adjusting with hydrochloric acid, Ca/Mg 6/4 (molar ratio)]3L. To these compositions, 15g each of the compositions prepared in examples and comparative examples was added and the compositions were uniformly dissolved while stirring with a hand. Subsequently, 3 pieces of the cotton half-sleeved shirts for evaluation prepared by the above method were put into the pot and left to stand for 1 minute in a state of being completely immersed in the washing liquid. After 1 minute of standing, each piece was evaluated by rubbing 50 times with a cotton half-sleeve shirt (converting 1 back and forth (about 1 second) of cloth to cloth rubbing). Then, the cotton half-sleeve shirts for evaluation were taken out, and the cotton half-sleeve shirts for evaluation were wrung from a position 30cm above the washbasin until the water content became 100 to 140 mass% with respect to the cotton half-sleeve shirts for evaluation, and the state of the liquid surface of 3 freshly wrung washing liquids was confirmed. A ruler was inserted slightly across the foam to scrape the surface of the foam flat and then the height from the water surface to the upper end of the foam was measured and marked in centimeters (cm).

In this evaluation, a value of 2cm or more is acceptable, and a larger value is more preferable.

< evaluation method of rinsing Property in hand washing >

Into a circular washbasin (bottom surface inner diameter 28cm, surface inner diameter 35cm, height 13.5cm), water temperature of 20 deg.C, calcium carbonate converted to 179mg/L (this hard water is equivalent to 10 ° DH of German hardness tester), and alkalinity of 65CaCO₃Hard water [ to calcium chloride (CaCl) ] of mg/L and pH7.1₂·2H₂O)1.57g with magnesium sulfate (MgSO₄·6H₂O)1.45g and sodium bicarbonate (NaHCO)₃)1.6g of hard water prepared by adding deionized water to 10L and adjusting with hydrochloric acid, Ca/Mg 6/4 (molar ratio)]5L, 3 pieces of the cotton half-sleeved shirts for evaluation were put in the foam evaluation, and then wrung out. After the evaluation cotton half-sleeve shirts were loosened in the rinsing water, the collar portion was lifted upward (to the clothes) by grasping the collar portion with each 1 loosened evaluation cotton half-sleeve shirtThe whole is separated from the rinsing level by a height of about 5cm) and then put back into the rinsing water again. After repeating the rinsing of the up-and-down movement 10 times for every 1 piece of the cotton half-sleeve shirts for evaluation, the cotton half-sleeve shirts for evaluation were wrung from a position 30cm above the washbasin until the water content became 100 to 140 mass% with respect to the cotton half-sleeve shirts for evaluation, and the state of the rinsing liquid surface after the 3 pieces of the shirts were wrung was confirmed. A ruler was inserted slightly across the foam to scrape the surface of the foam flat and then the height from the water surface to the upper end of the foam was measured and marked in centimeters (cm). This was 1 evaluation. Further, the same evaluation was repeated 1 time for the wrung cotton half-sleeved blouse for evaluation (3 pieces of the cotton half-sleeved blouse for evaluation were used for evaluation from 1 liquid detergent composition contained in the above evaluation of foamability).

In this evaluation, the case where the value at the 2 nd time is 1cm or less is acceptable, and the smaller the value, the more preferable the value is. When the value at the 2 nd order is the same, the smaller the value at the 1 st order is, the more preferable.

The case where foam was not confirmed is marked with "none". In this case, the smaller the value, the more preferable.

< method for evaluating smear cleaning force >

< preparation of artificially contaminated Fabric >

The artificially contaminated cloth was cut into 6cm × 6cm cotton cloth (100% cotton, 40S cotton, purchased from Shanghai Leyi cloth Co., Ltd.), 0.01ml of the hot oil prepared as described below was applied to each 1 piece, and the cloth was left standing in a dark room without light for 2 hours.

Spicy oil

50g of Youkoujia chili powder (Sichuan Youjia food Co., Ltd.) was added to 200g of soybean oil (refined first-class, Gonglong), and after stirring at 80 ℃ for 2 hours, it was filtered with Whatman filter paper (class 1, particle retention energy: 11 μm) and used.

< washing conditions >

As various liquid cleanersEvaluation of detergent composition, the above artificially contaminated cloth was set to 4 sheets and 1 group. After each of the artificially contaminated cloths was coated with 0.5g of the liquid detergent composition and left to stand for 15 minutes, 4 sheets of the artificially contaminated cloths coated with the detergent composition were put into a water bath at 20 ℃ and 179mg/L in terms of calcium carbonate (this hard water corresponds to 10 ℃ DH in a Germany hardness tester), and 65CaCO in terms of alkalinity₃Hard water [ to calcium chloride (CaCl) ] of mg/L and pH7.1₂·2H₂O)1.57g with magnesium sulfate (MgSO₄·6H₂O)1.45g and sodium bicarbonate (NaHCO)₃)1.6g of hard water prepared by adding deionized water to 10L and adjusting with hydrochloric acid, Ca/Mg 6/4 (molar ratio)]In 1L (2.0 g in total of the liquid detergent composition contained in each of the artificially contaminated cloths), the cloth was washed with an oscillation type scale-washing machine (tergometer) (RIDCi RHL QIII type vertical stain removal measuring machine, manufactured by national institute of daily chemical industries) at a rotation speed of 200rpm for 10 minutes at a temperature of 20 ℃. The washed artificially contaminated cloth (hereinafter, referred to as treated cloth) was dehydrated for 1 minute by a two-tub washing machine (manufactured by panasonic corporation, XPB52-500S), dried at 40 ℃ for 1 hour, and then measured for reflectance (C light source 2 degree field) by a colorimeter (Nippon Denshoku Kogyo Co., Ltd., Color meter ZE 6000) to record the Z value.

In this evaluation, 76 or more is acceptable, and the larger the value is, the more preferable the value is.

< method of measuring pH >

The pH measurement was carried out using a pH meter (D-52) and a pH electrode (6367-10D) manufactured by horiba, Ltd., in the following order. The standard solutions were prepared by transferring a pH4 standard solution (product No. K9084KF), a pH7 standard solution (product No. K9084KG) and a pH9 standard solution (product No. K9084KH) manufactured by Yokogawa electric corporation to a 50ml beaker.

The pH electrode was thoroughly washed with ion-exchanged water and wiped with a tissue paper (tissue paper). The internal liquid replenishment port of the pH electrode was opened and the pH electrode was immersed in a beaker containing a standard solution of pH7. In a state where the pH electrode was immersed in the sample for 3cm, the "CAL" key was pressed after 1 minute. After "HOLD" indicated stopping the blinking, the pH electrode was thoroughly washed with ion-exchanged water and wiped with tissue paper. Subsequently, the same operation was repeated using the pH4 standard solution and the pH9 standard solution, and three-point calibration was performed. After the calibration is completed, the electrode is immersed in a pH7 standard solution in a calibration mode, a 'ENTER' key is pressed, a pH reproducibility check is performed, and if the pH is within 0.05, the calibration is completed.

Next, the pH electrode was thoroughly washed with ion-exchanged water and wiped with a tissue paper. After confirming that the internal liquid replenishment port of the pH electrode was opened, the "MEAS" key was pressed after 2 minutes in a state where the pH electrode was immersed in the sample for 3 cm.

Note: the compounding ingredients used in the examples and comparative examples are collectively shown below.

< ingredient (a) >

(a-1)：

(a-1-1): sodium dodecyl sulfate (manufacturer: Tokyo chemical industry Co., Ltd.)

The value of (a-1-1) in example 25 in table 4 also includes the concentration of sodium lauryl sulfate derived from sodium laureth sulfate to which polyoxyethylene (EO average molar number of addition ═ 3) is added.

(a-1-2): sodium tetradecyl sulfate (manufacturer: Wako Chemical, Ltd.)

(a-1-3): sodium hexadecyl sulfate (manufacturer: Wako Chemical, Ltd.)

(a-2): sodium C14/C16 alpha-olefin sulfonate (trade name: Hostapur OS Liquid, active ingredient content: 42% by mass, manufacturer: Clariant Produkte (Deutschland) GmbH)

(a-3): sodium secondary alkylsulfonate (trade name: Hostapur SAS 60, content of active ingredient: 60% by mass, manufacturer: Clariant Produkte (Deutschland) GmbH)

(a-4): polyoxyethylene (EO average molar number of addition ═ 3) sodium lauryl ether sulfate (trade name: EMAL 20C, content of active ingredient 25 mass%, content of sodium lauryl sulfate 5.5%, manufacturer: Kao corporation)

The values in table 4 are the concentrations of the effective components other than sodium lauryl sulfate in the sodium laureth sulfate to be blended (EO average molar number of addition ═ 3).

(a-5): sodium dodecylbenzenesulfonate (trade name: NEOPELEX G-25, content of active ingredient 25% by mass, manufacturer: Kao corporation)

< ingredient (b) >

(b-1): octyl dimethyl amine oxide (active ingredient content: 50% by mass, manufacturer: Kao corporation)

(b-2): decyl dimethyl amine oxide (manufacturer: Kao corporation)

(b-3): N-decylmorpholine-N-amine oxide (manufacturer: Kao corporation)

< ingredient (c) >

(c-1): polyoxyethylene addition (EO average molar number of addition 10) mixture of lauryl polyoxyethylene ether and myristyl polyoxyethylene ether (trade name: KAO EMULGEN 110L, manufacturer: Kao (Shanghai) chemical Co., Ltd.)

(c-2): polyoxyethylene addition (EO average molar number of addition 21) lauryl polyoxyethylene ether (trade name: EMULGEN 121, manufacturer: Kao corporation)

(c-3): coconut oil fatty acid monoethanolamide (coconut oil amide MEA) (trade name: AMINON C-01S, manufacturer: Shanghai King chemical Co., Ltd.)

< ingredient (d) >

(d-1): PROPYLENE GLYCOL (trade name: PROPYLENE GLYCOL USP/EP (US) (BR) (TH), manufacturer: Dow Chemical Company)

TABLE 1

TABLE 2

TABLE 3

TABLE 4

TABLE 5

TABLE 6

As is clear from tables 1 to 6, when the component (a), the component (b) and the component (c) are contained as essential components, and the mass ratio ((a-1)/(a)) of the content of the sulfate salt as the component (a-1) in the component (a) to the content of the component (a) is 0.2 or more, further, in examples in which the content of the component (c), the mass ratio ((c)/(a)) of the content of the component (c) to the content of the component (a), and the mass ratio ((c)/(b)) of the content of the component (c) to the content of the component (b) in the liquid detergent composition are in specific ranges, the liquid detergent composition can achieve foaming properties (foaming properties during hand washing and washing in a washing machine), detergency against greasy dirt on the surface of the surface.

The liquid detergent composition of the present invention may further contain an alkyl sulfate or alkenyl sulfate having an alkyl group or an alkenyl group having 16 to 18 carbon atoms as the component (a), which is the component (a-1-3), and may further contain optionally the component (d), an anionic surfactant other than the component (a), and/or an amphoteric surfactant other than the component (b), whereby the effects of the present invention can be achieved.

When these components are contained, it is preferable that the total content ((a) + (b)) of the component (a) and the component (b) and/or the mass ratio ((a-1-3)/(a)) of the content of the component (a-1-3) to the content of the component (a) and/or the mass ratio ((d)/((a) + (b)) of the content of the component (d) to the total content of the component (a) and the component (b)) satisfy a specific range, and thereby an excellent effect can be obtained.

As described above, the liquid detergent composition of the present invention has a high ability to clean cooking oil stains by spreading, foams rapidly in hand washing and machine washing, and can be easily rinsed in rinsing, and is particularly suitable for use as a detergent for clothes.

Claims

1. A liquid detergent composition comprising, in a liquid detergent composition,

contains the following components (a) to (c):

(a) an anionic surfactant having 12 to 18 carbon atoms, wherein the anionic surfactant does not include a fatty acid, wherein the mass ratio (a-1)/(a) of the content of the sulfuric acid ester salt as the component (a-1) to the content of the component (a) is 0.2 or more, and the component (a) contains an alkyl sulfuric acid ester salt or alkenyl sulfuric acid ester salt having 16 or more and 18 or less carbon atoms of the alkyl group or alkenyl group as the component (a-1-3);

(b) an amine oxide type surfactant which is 1 or 2 or more selected from the group consisting of hexyldimethylamine oxide, octyldimethylamine oxide, decyldimethylamine oxide and N-decyldorpholine-N-oxide;

(c) a nonionic surfactant which is 1 or more than 2 selected from polyoxyalkylene alkyl ether and fatty acid monoethanolamide,

2. The liquid detergent composition of claim 1,

the mass ratio of the content of the component (a-1-3) to the content of the component (a) is 0.03 or more.

3. The liquid detergent composition of claim 1,

the mass ratio of the content of the component (a-1-3) to the content of the component (a) is 0.03 to 0.43.

4. The liquid detergent composition of claim 1,

further contains an amphoteric surfactant other than the component (b), and the mass ratio of the content of the component (b) to the total content of the amphoteric surfactants other than the components (b) is 0.2 or more.

5. The liquid detergent composition of claim 1,

further contains (d) a water-miscible organic solvent, wherein the mass ratio of the content of component (d) to the total content of components (a) and (b), (d)/((a) + (b)) is 0.5 or less.

6. The liquid detergent composition of claim 1,

further contains (d) a water-miscible organic solvent, wherein the mass ratio of the content of component (d) to the total content of components (a) and (b), (d)/((a) + (b)) is 0.4 or less.

7. The liquid detergent composition of claim 1,

further contains (d) a water-miscible organic solvent, wherein the mass ratio of the content of component (d) to the total content of components (a) and (b), (d)/((a) + (b)) is 0.3 or less.

8. The liquid detergent composition of claim 1,

further contains (d) a water-miscible organic solvent, and the content of the component (d) is 10% by mass or less.

9. The liquid detergent composition of claim 1,

further contains (d) a water-miscible organic solvent, and the content of the component (d) is 9% by mass or less.

10. The liquid detergent composition of claim 1,

the mass ratio (a-1)/(a) of the content of the sulfate salt as the component (a-1) to the content of the component (a) is 0.35 or more.

11. The liquid detergent composition of claim 1,

the mass ratio (a-1)/(a) of the content of the sulfate salt as the component (a-1) to the content of the component (a) is 0.45 or more.

12. The liquid detergent composition of claim 1,

the mass ratio (a-1)/(a) of the content of the sulfate salt as the component (a-1) to the content of the component (a) is 0.55 or more.

13. The liquid detergent composition of claim 1,

further contains (d) a water-miscible organic solvent, and the content of the component (d) is 5% by mass or less.

14. The liquid detergent composition according to any one of claims 1 to 12,

the sulfuric acid ester salt as the component (a-1) is an alkyl sulfuric acid ester salt or an alkenyl sulfuric acid ester salt having an alkyl group or an alkenyl group having 12 to 18 carbon atoms.

15. The liquid detergent composition according to any one of claims 1 to 12,

further, the component (a) contains 1 or 2 or more selected from among alpha-olefin sulfonates, paraffin sulfonates, polyoxyethylene alkyl sulfate ester salts, and alkylbenzene sulfonates.

16. The liquid detergent composition according to any one of claims 1 to 12,

the counter ion of the anionic surfactant is 1 or 2 or more selected from alkali metal ion, alkaline earth metal ion, ammonium ion and alkanol ammonium ion.

17. The liquid detergent composition of claim 16,

the alkali metal ions are 1 or 2 selected from sodium ions and potassium ions.

18. The liquid detergent composition according to any one of claims 1 to 12,

the total content of the component (a) and the component (b) is 2 to 30% by mass.

19. The liquid detergent composition according to any one of claims 1 to 12,

the total content of the component (a) and the component (b) is 2 to 20 mass%.

20. The liquid detergent composition according to any one of claims 1 to 12,

the mass ratio of the content of component (c) to the content of component (a), (c)/(a), is 4.4 or less.

21. The liquid detergent composition according to any one of claims 1 to 12,

the mass ratio of the content of component (c) to the content of component (a), (c)/(a), is 2.3 or less.

22. The liquid detergent composition according to any one of claims 1 to 12,

the mass ratio of the content of component (c) to the content of component (b) is (c)/(b) 6 or less.

23. The liquid detergent composition according to any one of claims 1 to 12,

the mass ratio of the content of component (c) to the content of component (b), (c)/(b), is 2.7 or less.

24. The liquid detergent composition according to any one of claims 1 to 12,

(a) the content of the component is 0.75-25% by mass.

25. The liquid detergent composition according to any one of claims 1 to 12,

(a) the content of the component is 1-20 mass%.

26. The liquid detergent composition according to any one of claims 1 to 12,

(b) the content of the component is 0.3-6 mass%.

27. The liquid detergent composition according to any one of claims 1 to 12,

(b) the content of the component is 0.3-5 mass%.

28. The liquid detergent composition according to any one of claims 1 to 12,

(c) the content of the component (B) is 0.3-16 mass%.

29. The liquid detergent composition according to any one of claims 1 to 12,

the total content of the surfactants other than fatty acids is 2 to 40% by mass.

30. The liquid detergent composition according to any one of claims 1 to 12,

the pH value at 25 ℃ is 7 or less.

31. The liquid detergent composition according to any one of claims 1 to 12,

the pH value at 25 ℃ is 6 or less.

32. The liquid detergent composition according to any one of claims 1 to 12,

the pH value at 25 ℃ is 5 or less.

33. A method of washing, wherein,

applying the liquid detergent composition of any one of claims 1-32 to a fibrous article for laundering.

34. A method of washing, wherein,

applying the liquid detergent composition of any one of claims 1-32 to laundry for washing.