Detergent composition, method for cleaning, and additive for detergent composition

Abstract

The present invention provides: a detergent composition which has a low environmental impact while having excellent detergency at low temperatures and excellent foam suppression; a method for cleaning; and an additive for a detergent composition.　The detergent composition contains component (A) and component (B).　Component (A): An internal olefin sulfonate having 8 to 24 carbon atoms or a salt thereof. Component (B): An amine oxide compound represented by general formula (1). (In the formula, R1 is a linear or branched alkyl group having 10 to 20 carbon atoms, or an alkenyl group, and R2 and R3 are each an alkyl group having 1 to 3 carbon atoms, or a hydroxyalkyl group.)

Description

Detergent composition, cleaning method, and additive for detergent composition

[0001] The present invention relates to a detergent composition, a cleaning method, and an additive for the detergent composition.

[0002] In the laundry detergent market, development is underway to suppress foaming in order to prevent washing machine malfunctions caused by excessive foaming during washing.

[0003] Furthermore, there is a need for the development of detergents that exhibit high cleaning effectiveness at low temperatures. For example, Patent Document 1 discloses a detergent composition using amine oxide as a surfactant. However, since amine oxide functions as a foaming agent, using amine oxide causes foaming problems. Therefore, a fatty acid that functions as an antifoaming agent is used together with the amine oxide.

[0004] While incorporating fatty acids into detergent compositions can alleviate foaming problems, it also leads to a decrease in cleaning effectiveness due to the fatty acids themselves.

[0005] Furthermore, from the perspective of reducing environmental impact, there is a need for the development of detergents and other products that use surfactants as raw materials and contain a large amount of naturally derived ingredients.

[0006] US2022 / 0010236

[0007] Therefore, the problem that the present invention aims to solve is to provide a detergent composition, a cleaning method, and an additive for the detergent composition that have low environmental impact, maintain cleaning performance at low temperatures, and exhibit excellent foam suppression.

[0008] Therefore, in order to solve the above problems, the present inventors conducted diligent research and found that the above problems can be solved with the following detergent composition.

[0009] In other words, the present invention relates to a detergent composition containing component (A) and component (B). Component (A): Internal olefin sulfonate having 8 to 24 carbon atoms or a salt thereof. Component (B): Amine oxide compound represented by the following general formula (1). [In the formula, R １is a linear or branched alkyl group or alkenyl group having 10 to 20 carbon atoms, or R ２ and R ３ is an alkyl group having 1 to 3 carbon atoms or a hydroxyalkyl group.]

[0010] The present invention relates to a method of washing using a washing liquid containing component (A) and component (B). Component (A): internal olefin sulfonic acid having 8 to 24 carbon atoms or a salt thereof Component (B): an amine oxide compound represented by the following general formula (1) [In the formula, R １ is a linear or branched alkyl group or alkenyl group having 10 to 20 carbon atoms, or R ２ and R ３ is an alkyl group having 1 to 3 carbon atoms or a hydroxyalkyl group.]

[0011] The present invention relates to an additive for a detergent composition containing component (A) and component (B). Component (A): internal olefin sulfonic acid having 8 to 24 carbon atoms or a salt thereof Component (B): an amine oxide compound represented by the following general formula (1) [In the formula, R １ is a linear or branched alkyl group or alkenyl group having 10 to 20 carbon atoms, or R ２ and R ３ is an alkyl group having 1 to 3 carbon atoms or a hydroxyalkyl group.]

[0012] According to the present invention, it is possible to provide a detergent composition, a washing method, and an additive for a detergent composition that have a low environmental impact and are excellent in detergency and foam suppression at low temperatures, and are useful.

[0013] Hereinafter, the present invention will be described in detail.

[0014] <Detergent composition> The present invention relates to a detergent composition containing component (A) and component (B). Component (A): internal olefin sulfonic acid having 8 to 24 carbon atoms or a salt thereof Component (B): an amine oxide compound represented by the following general formula (1) [In the formula, R １R is a linear or branched alkyl group or alkenyl group having 10 to 20 carbon atoms, ２ and R ３ The C1 is an alkyl group having 1 to 3 carbon atoms, or a hydroxyalkyl group. The component (A) contained in the detergent composition contains the internal olefin sulfonate or a salt thereof, and the internal olefin sulfonate or a salt thereof can be obtained from naturally derived raw materials, exhibits biodegradability, foaming ability, foam quality, high water solubility, and high hydrophobicity, and by using the component (A) and the component (B) in combination, the low-temperature cleaning effect can be improved, and even when the amount of defoaming agent (e.g., fatty acid) contained in the detergent composition is reduced, it exhibits anti-foaming properties and can suppress the decrease in cleaning performance due to the defoaming agent.

[0015] <Component (A)> The detergent composition of the present invention contains component (A), which is an internal olefin sulfonate or a salt thereof having 8 to 24 carbon atoms, and corresponds to an anionic surfactant. Component (A) can be obtained from naturally derived raw materials, exhibits biodegradability, foaming ability, foam quality, high water solubility, and high hydrophobicity, and has the effect of cleaning oily (e.g., beef tallow, etc.) stains attached to clothing products, including fibers, even at low temperatures (e.g., 0 to 20°C). Furthermore, it is a compound with lower adsorption to fibers when washing the clothing products. It also has the effect of hard water resistance and promoting the reduction of the kraft point. Component (A), which is the internal olefin sulfonate or a salt thereof, has a hydrophobic part and a hydrophilic part in its structure. In particular, the internal olefin sulfonate or a salt thereof contains a long hydrocarbon chain and an asymmetric hydrocarbon chain, and has an internal hydrophilic group, thus achieving both high hydrophobicity and high water solubility. Furthermore, component (A) may be used alone or in combination of two or more types.

[0016] As raw materials for the internal olefin used in the synthesis of the internal olefin sulfonic acid or its salt, natural ingredients such as palm oil, palm kernel oil, and coconut oil can be used, from the viewpoint of minimizing environmental impact such as biodegradability.

[0017] In this invention, internal olefin sulfonic acid or its salt means a sulfonic acid or its salt obtained by sulfonating, neutralizing, and hydrolyzing an internal olefin (an olefin having a double bond inside the olefin chain) which is a raw material having 8 to 24 carbon atoms. The internal olefin can be obtained by heating a higher alcohol having 8 to 24 carbon atoms in the presence of an acid catalyst for about 3 to 24 hours. Note that α-olefins differ from internal olefins in that the double bond is located at position 1, i.e., at the terminal.

[0018] When the internal olefin is sulfonated, β-sartone is quantitatively produced, and a portion of the β-sartone is converted to γ-sartone and olefin sulfonic acid. These are further converted to hydroxyalkanesulfonic acid or its salt and olefin sulfonic acid or its salt in the neutralization and hydrolysis steps (e.g., J. Am. Oil Chem. Soc. 69, 39 (1992)). Here, the hydroxyl group of the obtained hydroxyalkanesulfonic acid or its salt is located inside the alkane chain, and the double bond of the olefin sulfonic acid or its salt is located inside the olefin chain. The obtained product is mainly a mixture of these, and may also contain trace amounts of hydroxyalkanesulfonic acid or its salt having a hydroxyl group at the end of the carbon chain, or olefin sulfonic acid or its salt having a double bond at the end of the carbon chain. In this specification, the mixture of the above hydroxyalkanesulfonic acid or its salt and olefin sulfonic acid or its salt is collectively referred to as internal olefin sulfonic acid or its salt. Furthermore, the hydroxyalkanesulfonic acid or its salt is also referred to as the hydroxy form of the internal olefin sulfonic acid or its salt (hereinafter also referred to as "HAS"), and the olefin sulfonic acid or its salt is also referred to as the olefin form of the internal olefin sulfonic acid or its salt (hereinafter also referred to as "IOS").

[0019] Incidentally, the content of each compound having a different position of the sulfonic acid group in the component (A) can be measured by a high performance liquid chromatography mass spectrometer (hereinafter abbreviated as "HPLC-MS"). The content of each compound having a different position of the sulfonic acid group in this specification is determined as the mass ratio based on the HPLC-MS peak area of the compound having the sulfonic acid group at each position in all HAS forms of the component (A).

[0020] The carbon number of the internal olefin sulfonic acid or its salt in the component (A) represents the carbon number of the internal olefin to which the sulfonate is covalently bonded. From the viewpoint of further improving the detergency of oil and fat stains etc. attached to clothing products etc. containing fibers, the carbon number of the internal olefin sulfonic acid or its salt in the component (A) is 8 or more, preferably 10 or more, more preferably 12 or more, still more preferably 16 or more, and 24 or less, preferably 22 or less, more preferably 20 or less, still more preferably 18 or less.

[0021] Examples of the salt of the internal olefin sulfonic acid or its salt include an alkali metal salt, an alkaline earth metal (1 / 2 atom) salt, an ammonium salt or an organic ammonium salt. Examples of the alkali metal salt include a sodium salt and a potassium salt. Examples of the organic ammonium salt include an alkanolammonium salt having 2 to 6 carbon atoms. The salt of the internal olefin sulfonic acid or its salt is preferably an alkali metal salt, more preferably a sodium salt or a potassium salt, from the viewpoints of easy availability and cost reduction.

[0022] As the internal olefin sulfonic acid or its salt in the component (A), potassium salt of internal olefin sulfonic acid having 16 carbon atoms is preferable.

[0023] The internal olefin sulfonic acid or its salt is a mixture of a hydroxy form (HAS) and an olefin form (IOS). The mass ratio (olefin form / hydroxy form) of the content of the olefin form of the internal olefin sulfonic acid or its salt to the content of the hydroxy form of the internal olefin sulfonic acid or its salt in the component (A) is preferably 0 / 100 or more, more preferably 5 / 95 or more, still more preferably 10 / 90 or more, and preferably 50 / 50 or less, more preferably 40 / 60 or less, still more preferably 30 / 70 or less, and even more preferably 25 / 75 or less.

[0024] The mass ratio of the content of the hydroxy form of the internal olefin sulfonic acid or its salt to the content of the olefin form of the internal olefin sulfonic acid or its salt in the component (A) can be determined by separating the hydroxy form and the olefin form by high performance liquid chromatography (HPLC) from the component (A) and the resulting detergent composition, identifying each by applying them to a mass spectrometer (MS), and calculating the respective ratios from the HPLC-MS peak areas.

[0025] Component (A) can be produced by sulfonating, neutralizing, and hydrolyzing an internal olefin having 8 to 24 carbon atoms, which is the raw material. The sulfonation reaction can be carried out, for example, by reacting 1.0 to 1.2 moles of sulfur trioxide gas with 1 mole of internal olefin. The neutralization reaction can be carried out, for example, by reacting an alkaline aqueous solution such as sodium hydroxide, potassium hydroxide, ammonia, or 2-aminoethanol in an amount 1.0 to 1.5 times the theoretical value of sulfonic acid groups. The reaction temperature can be 20 to 40°C. The hydrolysis reaction can be carried out, for example, by reacting at 90 to 200°C in the presence of water for 30 minutes to 3 hours. These reactions can be carried out continuously. After the reaction is complete, the product can be purified by extraction, washing, etc. Furthermore, in producing internal olefin sulfonic acid or its salt (A), sulfonation, neutralization, and hydrolysis treatments may be carried out using a raw material internal olefin having a distribution of carbon atoms between 8 and 24, or sulfonation, neutralization, and hydrolysis treatments may be carried out using a raw material internal olefin having a single number of carbon atoms, or, if necessary, multiple types of internal olefin sulfonic acid or its salt having different numbers of carbon atoms that have been produced in advance may be mixed.

[0026] The internal olefin used in the synthesis of internal olefin sulfonic acid or its salt, which is component (A), refers to an olefin having a double bond inside the olefin chain. The number of carbon atoms in the internal olefin is 8 to 24. The internal olefin used in component (A) may be used alone or in combination of two or more types.

[0027] The distribution of double bonds in the olefin within the raw material can be measured, for example, by a gas chromatograph-mass spectrometer (hereinafter also referred to as "GC-MS"). Specifically, by accurately separating each component with different carbon chain lengths and double bond positions using a gas chromatograph (hereinafter also referred to as "GC"), and then subjecting each to a mass spectrometer (hereinafter also referred to as "MS"), the double bond positions can be identified, and their respective proportions can be determined from their GC peak areas.

[0028] The detergent composition may contain more than 0% by mass and up to 50% by mass of component (A). Furthermore, the content of component (A) in the detergent composition is preferably 1% by mass or more, more preferably 2% by mass or more, and even more preferably 3% by mass or more, from the viewpoint of improving cleaning performance, and preferably 40% by mass or less, and more preferably 30% by mass or less, from the viewpoint of reducing compounding costs.

[0029] <Component (B)> The detergent composition of the present invention contains component (B), which is an amine oxide compound represented by the following general formula (1) and corresponds to an amphoteric surfactant. Component (B), like component (A), has a hydrophobic part and a hydrophilic part in its structure, and therefore exhibits a strong interaction with component (A). In particular, because component (B) has a cationic functional group in its structure, it combines with component (A) to improve hydrophobicity, exhibits adsorption to oils and fats (e.g., beef tallow), and shows high affinity even to oils and fats where the proportion of solid fat increases at low temperatures (e.g., 0 to 20°C), thus having the effect of cleaning oily stains and other grime attached to clothing products, including fibers, even at low temperatures. Component (B) may be used alone or in combination of two or more types. [In the formula, R １ R is a linear or branched alkyl group or alkenyl group having 10 to 20 carbon atoms, ２ and R ３ This is an alkyl group or hydroxyalkyl group having 1 to 3 carbon atoms.

[0030] The aforementioned R １ From the viewpoint of good interaction with component (A) and improved cleaning performance, the carbon number is 10 or more, preferably 12 or more, and 20 or less, preferably 18 or less, more preferably 16 or less, and even more preferably 14 or less. Also, the R １ From the viewpoint of good interaction with component (A) and improved cleaning performance, this is a linear or branched alkyl group or alkenyl group, preferably a linear alkyl group.

[0031] The aforementioned R ２ and R ３From the viewpoint of availability, the carbon element has 1 to 3 carbon atoms, preferably 1 to 2 carbon atoms, and more preferably 1 carbon atom. Also, the R ２ and R ３ From the viewpoint of availability, this is an alkyl group or a hydroxyalkyl group, and preferably an alkyl group.

[0032] Examples of component (B) include alkyldimethylamine oxides, alkylmethylhydroxyethylamine oxides, and alkylethylhydroxyethylamine oxides such as decyldimethylamine oxide, lauryldimethylamine oxide, myristyldimethylamine oxide, hexadecyldimethylamine oxide, oleyldimethylamine oxide, decylmethylhydroxyethylamine oxide, laurylmethylhydroxyethylamine oxide, myristylmethylhydroxyethylamine oxide, hexadecylmethylhydroxyethylamine oxide, oleylmethylhydroxyethylamine oxide, decylethylhydroxyethylamine oxide, laurylethylhydroxyethylamine oxide, myristylethylhydroxyethylamine oxide, hexadecylethylhydroxyethylamine oxide, and oleylethylhydroxyethylamine oxide. Among the components (B), one or more selected from lauryldimethylamine oxide, myristyldimethylamine oxide, hexadecyldimethylamine oxide, and oleyldimethylamine oxide are preferred, and one or more selected from lauryldimethylamine oxide and myristyldimethylamine oxide are more preferred, from the viewpoint of good interaction with component (A) and improved cleaning performance.

[0033] The detergent composition may contain more than 0% by mass and up to 10% by mass of component (B). Furthermore, the detergent composition preferably contains 0.5% by mass or more, more preferably 1% by mass or more, of component (B) from the viewpoint of improving cleaning performance, and preferably 7% by mass or less, more preferably 5% by mass or less, from the viewpoint of improving foam suppression.

[0034] <Component (C)> The detergent composition of the present invention may contain component (C), and component (C) is one or more selected from component (C-1) and component (C-2), wherein component (C-1) is an anionic surfactant excluding component (A) and component (D), and component (C-2) is preferably a polyoxyalkylene alkyl ether having an HLB value of 9 or more and 18 or less. Component (C-1), being an anionic surfactant, is a compound with excellent emulsifying, dispersible, and foaming properties. Furthermore, component (C-2), being a nonionic surfactant, can achieve a balance between hydrophilicity and hydrophobicity, and is a compound with excellent formulation stability and cleaning properties.

[0035] <Component (C-1): Anionic surfactant excluding components (A) and (D)> Component (C-1) is an anionic surfactant excluding components (A) and (D), and is not particularly limited as long as it is a surfactant having an anionic hydrophilic group. Examples include salts of various acids having saturated or unsaturated alkyl groups. The alkyl chain may be linear or branched. In addition to the alkyl chain, it may also have other functional groups (e.g., amino groups, ether groups, etc.) or chain structures (e.g., polyoxyalkylene groups, etc.). Component (C-1) may be used alone or in combination of two or more.

[0036] The number of carbon atoms in the alkyl chain of component (C-1) is 10 to 24, and from the viewpoint of improved washability and ease of availability, it is preferably 22 or less, more preferably 20 or less, even more preferably 18 or less, and even more preferably 16 or less.

[0037] The detergent composition may contain 0% to 50% by mass of component (C-1). Furthermore, the content of component (C-1) in the detergent composition is preferably 1% or more by mass, more preferably 2% or more by mass, and even more preferably 3% or more by mass, from the viewpoint of improving cleaning performance, and preferably 40% or less by mass, and more preferably 30% or less by mass, from the viewpoint of reducing compounding costs.

[0038] Furthermore, the (C-1) component can be a sulfate, a sulfonate, an amino acid salt, a dicarboxylate, a polyether carboxylate, an amide ether carboxylate, or a phosphate ester salt. Examples include sodium N-lauroyl glutamate, sodium N-myristoyl glutamate, sodium N-coconut oil fatty acid acyl glutamate, potassium N-lauroyl glutamate, potassium N-myristoyl glutamate, potassium N-coconut oil fatty acid acyl glutamate, triethanolamine N-lauroyl glutamate, and N-myristoyl glutamate. N-acyl amino acid salts such as triethanolamine tamic acid, N-coconut oil fatty acid acyl glutamate triethanolamine, N-lauroyl glycine sodium, N-myristoyl glycine triethanolamine, N-lauroyl-β-alanine potassium, N-lauroyl rheonine triethanolamine, N-lauroyl sarcosinate sodium, N-lauroyl-N-methyl-β-alanine sodium, N-lauroyl-N-methyl-β-alanine triethanolamine; sodium lauroyl-iminodiacetate, triethanolamine lauroyl-iminodiacetate Acyliminodiacetates such as amines, sodium coconut oil fatty acid acyliminodiacetate, disodium lauroyliminodiacetate, sodium palm kernel fatty acid iminodiacetate; polyether carboxylates such as sodium polyoxyethylene lauryl ether acetate, potassium polyoxyethylene myristyl ether acetate, triethanolamine polyoxyethylene palmityl ether acetate, sodium polyoxyethylene stearyl ether acetate, sodium polyglyceryl lauryl ether acetate; acylated peptides such as coconut oil fatty acid silk peptide; amide ether carboxylates such as sodium polyoxyethylene lauric acid amide ether carboxylate, sodium polyoxyethylene myristinate amide ether carboxylate, triethanolamine polyoxyethylene coconut oil fatty acid amide ether carboxylate; acyl lactates; alkenyl succinates; alkyl sulfates such as sodium lauryl sulfate, potassium lauryl sulfate, sodium myristyl sulfate, potassium myristyl sulfate, sodium cetyl sulfate, sodium stearyl sulfate, sodium oleyl sulfate, triethanolamine lauryl sulfate;Polyoxyalkylene alkyl ether sulfates such as polyoxyethylene lauryl ether sodium sulfate, polyoxyethylene cetyl ether sodium sulfate, polyoxyethylene oleyl ether sodium sulfate, and polyoxyethylene lauryl ether sulfate triethanolamine; alkylaryl ether sulfates such as polyoxyethylene octylphenyl ether sodium sulfate; alkylamide sulfates such as polyoxyethylene lauric acid amide ether sodium sulfate, polyoxyethylene lauric acid amide ether sulfate triethanolamine, polyoxyethylene myristic acid amide ether sodium sulfate, polyoxyethylene oleic acid amide ether sodium sulfate, polyoxyethylene coconut oil fatty acid amide ether sodium sulfate, and oleic acid amide ether sodium sulfate; acyl ester sulfates such as hydrogenated coconut oil fatty acid glycerin sulfate sodium; sodium lauryl sulfonate, myristyl Alkyl sulfonates such as sodium phosphate and sodium coconut oil alkyl sulfonate; alkylbenzene sulfonates such as sodium linear dodecylbenzenesulfonate and linear dodecylbenzenesulfonate triethanolamine; alkylnaphthalene sulfonates; formalin condensate sulfonates such as formalin polycondensates of naphthalene sulfonates; sulfosuccinates such as disodium lauryl sulfosuccinate, di-2-ethylhexyl sulfosuccinate, disodium lauryl polyoxyethylene sulfosuccinate, and disodium oleamide sulfosuccinate; α-olefin sulfonates such as sodium dodecenesulfonate, sodium tetradecenesulfonate, potassium dodecenesulfonate, and potassium tetradecenesulfonate; α-sulfo fatty acid ester salts such as methyl α-sulfolauric acid, methyl α-sulfomyristate, and α-sulfolauric acid (EO)n methyl ester;N-acylmethyl-taurine salts such as potassium coconut oil fatty acid acyl-N-methyltaurate, sodium lauroyl-N-methyltaurate, potassium lauroyl-N-methyltaurate, lauroyl-N-methyltaurate triethanolamine, sodium myristoyl-N-methyltaurate, myristoyl-N-methyltaurate triethanolamine, sodium coconut oil fatty acid acyl-N-methyltaurate, and sodium coconut oil fatty acid acyl-N-methyltaurate triethanolamine; acyl isethionates such as sodium lauroyl isethionate, sodium myristoyl isethionate, and sodium coconut oil fatty acid acyl isethionate; sodium polyoxyethylene lauryl ether phosphate, polyoxy Examples include alkyl ether phosphate salts such as sodium ethylene cetyl ether phosphate, potassium polyoxyethylene myristyl phosphate, sodium polyoxyethylene oleyl ether phosphate, and sodium dipolyoxyethylene oleyl ether phosphate; alkylaryl ether phosphate salts; fatty acid amide ether phosphate salts such as sodium polyoxyethylene lauryl amide ether phosphate; alkyl phosphate salts such as sodium lauryl phosphate, sodium myristyl phosphate, sodium coconut oil fatty acid phosphate, potassium myristyl phosphate, triethanolamine lauryl phosphate, diethanolamine oleyl phosphate, and mixtures thereof. Furthermore, as component (C-1), from the viewpoint of improved cleaning performance, ease of availability, and reduced formulation costs, one or more selected from sulfates and sulfonates are preferred, one or more selected from alkyl sulfates, alkylbenzene sulfonates, and polyoxyalkylene alkyl ether sulfates are more preferred, and one or more selected from sodium lauryl sulfate, sodium polyoxyethylene lauryl ether sulfate, and sodium linear dodecylbenzenesulfonate are even more preferred.

[0039] The (C-1) component may be incorporated into the detergent composition in a state where the various acids have already formed salts, or the various acids and various basic substances for salt formation may be incorporated into the composition separately, and the salts may be formed during manufacturing.

[0040] The aforementioned (C-1) component exists in the detergent composition as a so-called partially neutralized product, where various acids and their salts coexist. For example, by individually adding alkyl sulfate and potassium hydroxide to the formulation of the detergent composition, a potassium alkyl sulfate salt is formed by a neutralization reaction within the formulation.

[0041] Examples of basic substances that form salts by neutralization with various acids include alkali metal hydroxides such as potassium hydroxide and sodium hydroxide, 2-amino-2-methyl-1-propanol, 2-amino-2-methyl-1,3-propanediol, triethanolamine, diethanolamine, monoethanolamine, triisopropanolamine, 2-amino-2-hydroxymethyl-1,3-propanediol, L-arginine, L-lysine, morpholine, and basic nitrogen-containing compounds such as N-alkyl taurine salts.

[0042] <Component (C-2): Polyoxyalkylene alkyl ether with an HLB value of 9 to 18> The (C-2) component is a polyoxyalkylene alkyl ether with an HLB value of 9 to 18, and corresponds to a nonionic surfactant. The (C-2) component is a nonionic surfactant and is a compound with excellent formulation stability and cleaning properties. The (C-2) component may be used alone or in combination of two or more types.

[0043] The (C-2) component is preferably a nonionic surfactant represented by the following general formula (2). ４ (CO) ｍ O-(AO) ｎ -R ５ (2) [wherein, R ４ R is an aliphatic hydrocarbon group having 8 to 22 carbon atoms, ５ is a hydrogen atom or a methyl group. CO is a carbonyl group, and m is a number of 0 or 1. AO is an oxyalkylene group containing an oxyethylene group and having 2 to 4 carbon atoms. n is the average number of moles added, and is a number of 1 to 45.

[0044] The aforementioned R ４The number of carbon atoms is preferably 8 or more, more preferably 10 or more, even more preferably 12 or more, and preferably 22 or less, more preferably 18 or less, even more preferably 16 or less, and even more preferably 14 or less, from the viewpoint of improving cleaning performance and foam suppression.

[0045] The aforementioned R ５ From the viewpoint of improving cleaning performance, it is preferably a hydrogen atom or a methyl group, and more preferably a hydrogen atom.

[0046] From the viewpoint of improving cleaning performance, the AO group is preferably an oxyalkylene group having 2 to 4 carbon atoms and containing an oxyethylene group, more preferably an oxyalkylene group having 2 to 3 carbon atoms and containing an oxyethylene group, and even more preferably an oxyethylene group. The AO group may also be an oxyalkylene group containing an oxyethylene group and another oxyalkylene group, such as an oxypropylene group. The other oxyalkylene group is preferably an oxypropylene group.

[0047] If the AO group includes an oxyethylene group and another oxyalkylene group, the oxyethylene group and the other oxyalkylene group may be bonded in a block-type or random-type bond.

[0048] The value of m is the average number of moles added of the CO group, preferably 0 or 1, and more preferably 0.

[0049] The above n is the average number of moles of AO groups added, and from the viewpoint of improving washability and improving formulation stability, it is preferably 1 or more, more preferably 3 or more, even more preferably 5 or more, preferably 45 or less, more preferably 30 or less, even more preferably 25 or less, even more preferably 20 or less, even more preferably 15 or less, and even more preferably 14 or less.

[0050] Examples of the (C-2) component include polyoxyethylene alkyl ether, polyoxypropylene alkyl ether, and polyoxyethylene polyoxypropylene alkyl ether, and more specifically, polyoxyethylene octyl ether, polyoxyethylene 2-ethylhexyl ether, polyoxyethylene nonyl ether, polyoxyethylene decyl ether, polyoxyethylene undecyl ether, polyoxyethylene lauryl ether, polyoxyethylene tridecyl ether, polyoxyethylene myristyl ether, polyoxyethylene pentadecyl ether, and polyoxyethylene cetyl ether. Examples include polyoxyethylene heptadecyl ether, polyoxyethylene stearyl ether, polyoxyethylene oleyl ether, polyoxyethylene nonadecyl ether, polyoxyethylene octyldodecyl ether, polyoxyethylene behenyl ether, polyoxypropylene lauryl ether, polyoxypropylene stearyl ether, polyoxyethylene polyoxypropylene lauryl ether, polyoxyethylene polyoxypropylene tridecyl ether, polyoxyethylene polyoxypropylene myristyl ether, and polyoxyethylene polyoxypropylene pentadecyl ether. Furthermore, the oxyalkylene group in component (C-2) may be a block bond or a random bond.In particular, as the (C-2) component, from the viewpoint of availability and reduction of blending costs, one or more selected from polyoxyethylene alkyl ethers is preferred, one or more selected from polyoxyethylene octyl ether, polyoxyethylene 2-ethylhexyl ether, polyoxyethylene nonyl ether, polyoxyethylene decyl ether, polyoxyethylene undecyl ether, polyoxyethylene lauryl ether, polyoxyethylene tridecyl ether, polyoxyethylene myristyl ether, polyoxyethylene pentadecyl ether, polyoxyethylene cetyl ether, polyoxyethylene heptadecyl ether, polyoxyethylene stearyl ether, and polyoxyethylene oleyl ether is more preferred, and one or more selected from polyoxyethylene nonyl ether, polyoxyethylene decyl ether, polyoxyethylene undecyl ether, polyoxyethylene lauryl ether, polyoxyethylene tridecyl ether, polyoxyethylene myristyl ether, polyoxyethylene pentadecyl ether, polyoxyethylene cetyl ether, and polyoxyethylene heptadecyl ether is even more preferred. Furthermore, from the viewpoint of improving cleaning performance and foam suppression, one or more selected from polyoxyethylene alkyl ethers and polyoxyethylene polyoxypropylene alkyl ethers are preferred, and one or more selected from polyoxyethylene lauryl ethers, polyoxyethylene myristyl ethers, polyoxyethylene polyoxypropylene lauryl ethers, and polyoxyethylene polyoxypropylene myristyl ethers are more preferred.

[0051] The (C-2) component has an HLB value of 9 or more and 18 or less, and from the viewpoint of improving cleaning performance, it is 9 or more, preferably 9.5 or more, more preferably 10 or more, and 18 or less, preferably 17 or less, more preferably 16 or less, and even more preferably 15 or less.

[0052] The HLB value of component (C-2) is the HLB value obtained by Griffin's method, and in the case of polyoxyalkylene alkyl ethers, the HLB value obtained by this method can be calculated by the following formula: HLB value = 20 × (MH / M) ​​[MH: molecular weight of the hydrophilic group portion, M: molecular weight of component (C-2)]. When calculating these HLB values, the method described by Shigeo Hayano, Institute of Industrial Science, University of Tokyo, in "Oil Chemistry, Vol. 13, No. 4" (1964), pp. 36-39, can be used as a reference. Furthermore, if there is a distribution in the number of moles of polyoxyethylene groups added, the molecular weight obtained from the average number of moles added is used. In addition, the polyoxypropylene group is treated as a hydrophobic group.

[0053] The aforementioned detergent composition may use component (C-1) and component (C-2) individually or in combination as component (C). Combination is preferred from the viewpoint of improving formulation stability, ease of availability, and reducing formulation costs.

[0054] The detergent composition may contain 0% by mass or more and 50% by mass or less of component (C). Furthermore, the content of component (C) in the detergent composition is preferably 1% by mass or more, more preferably 2% by mass or more, and even more preferably 3% by mass or more, from the viewpoint of improving cleaning performance, and preferably 40% by mass or less, and more preferably 30% by mass or less, from the viewpoint of reducing compounding costs.

[0055] The detergent composition may contain 0% by mass or more and 50% by mass or less of the (C-2) component. Furthermore, the content of the (C-2) component in the detergent composition is preferably 1% by mass or more, more preferably 2% by mass or more, and even more preferably 3% by mass or more, from the viewpoint of improving cleaning performance, and preferably 40% by mass or less, and more preferably 30% by mass or less, from the viewpoint of reducing compounding costs.

[0056] The detergent composition, when the (C-1) component and the (C-2) component are used in combination, contains 0% by mass or more and 80% by mass or less, preferably 1% by mass or more, more preferably 2% by mass or more, and even more preferably 3% by mass or more, and preferably 70% by mass or less, and more preferably 60% by mass or less, from the viewpoint of improving cleaning performance, and from the viewpoint of reducing compounding costs.

[0057] <Component (D)> The detergent composition of the present invention may contain component (D), which is a fatty acid or a salt thereof. Component (D) has the function of an antifoaming agent and is a compound that can be used to suppress the foaming that occurs when using component (B), and can exhibit antifoaming properties. Component (D) may be used alone or in combination of two or more types. Furthermore, component (D) does not contain the aforementioned component (C-1).

[0058] As for the fatty acid or salt thereof which is component (D) above, from the viewpoint of availability and reduction of compounding costs, one or more selected from straight-chain fatty acids or salts thereof and branched-chain fatty acids or salts thereof are preferred, and straight-chain fatty acids or salts thereof are more preferred.

[0059] Furthermore, regarding the fatty acid or salt thereof which is component (D), from the viewpoint of improving foam suppression, ease of availability, and reduction of compounding costs, the number of carbon atoms in the straight chain or branched chain constituting the fatty acid or salt thereof is preferably 8 or more, more preferably 12 or more, and preferably 18 or less, more preferably 16 or less.

[0060] Examples of component (D) include a mixture of coconut-derived fatty acids (coconut oil fatty acids) containing large amounts of lauric acid, myristic acid, palmitic acid, stearic acid, isostearic acid, and isopalmitic acid, and salts thereof. Among these, coconut oil fatty acids or salts thereof are preferred from the viewpoint of availability and reduction of formulation costs.

[0061] The salt of the fatty acid that is component (D) is preferably an alkali metal salt, more preferably a sodium salt or a potassium salt, and even more preferably a sodium salt.

[0062] The cleaning agent composition may contain 0% by mass or more and 10% by mass or less of component (D). The content of component (D) is kept lower than the proportion of defoaming agents contained in ordinary cleaning agent compositions, thereby suppressing the reduction in cleaning effect due to the inclusion of the defoaming agent. Furthermore, from the viewpoint of improving foam suppression, the content of component (D) in the cleaning agent composition is preferably more than 0% by mass, more preferably 0.3% by mass or more, and from the viewpoint of improving cleaning performance, it is preferably 10% by mass or less, more preferably 8% by mass or less, and even more preferably 7% by mass or less.

[0063] The detergent composition preferably contains component (A), component (B), component (C), and component (D). By containing all of components (A), (B), (C), and (D), the detergent composition is useful because it exhibits excellent cleaning properties and foam suppression even at low temperatures.

[0064] The cleaning agent composition may be in any form, such as solid, powder, or liquid, and is preferably liquid.

[0065] <Cleaning Solution> The aforementioned cleaning agent composition is often used after being diluted with water or other solvents during cleaning (laundry). Therefore, the cleaning agent composition diluted with a solvent is sometimes referred to as a cleaning solution.

[0066] <Component (E) and Component (F)> In the detergent composition of the present invention, from the viewpoint of the long-term stability of the detergent composition (cleaning solution), an alkaline component may be used as component (E) and an acidic component as component (F) as appropriate pH adjusters. Examples of component (E) include sodium hydroxide, potassium hydroxide, alkanolamine, ammonia, etc. Examples of component (F) include inorganic acids such as hydrochloric acid, sulfuric acid, and phosphoric acid, and organic acids such as polycarboxylic acids and hydroxycarboxylic acids such as citric acid. In particular, a method of adjusting the pH of the detergent composition (cleaning solution) by combining an alkaline component such as sodium hydroxide or potassium hydroxide with an acidic component such as sulfuric acid or citric acid is mentioned.

[0067] The pH of the aforementioned detergent composition at 25°C is preferably 3 or higher, more preferably 4 or higher, even more preferably 5 or higher, even more preferably 6 or higher, even more preferably 7 or higher, and preferably 12 or lower, more preferably 11 or lower, even more preferably 10 or lower, even more preferably 9 or lower, and even more preferably 8 or lower, from the viewpoint of improving cleaning performance, safety during use, and improving the preservative properties of the detergent composition.

[0068] To measure the pH, a pH measuring composite electrode (HORIBA glass ground-joint sleeve type) is connected to a pH meter (HORIBA pH / ion meter F-23), and the power is turned on. A saturated potassium chloride aqueous solution (3.33 mol / L) is used as the internal solution for the pH electrode. Next, 100 mL beakers are filled with pH 4.01 standard solution (phthalate standard solution), pH 6.86 (neutral phosphate standard solution), and pH 9.18 standard solution (borate standard solution), and the beakers are immersed in a 25°C constant temperature bath for 30 minutes. The pH measuring electrode is immersed in the standard solution adjusted to constant temperature for 3 minutes, and calibration is performed in the order of pH 6.86, pH 9.18, and pH 4.01. The sample to be measured is adjusted to 25°C, the electrode of the pH meter is immersed in the sample, and the pH is measured after 1 minute.

[0069] <(G) Component: Water> The detergent composition may contain water in order to maintain a liquid state at low temperatures to room temperature (for example, 0°C to 40°C). As the water, deionized water (sometimes called ion-exchanged water), purified water, or tap water may also be used.

[0070] In the detergent composition (cleaning solution) of the present invention, the water content is preferably 10% by mass or more, more preferably 20% by mass or more, and preferably 90% by mass or less, and more preferably 80% by mass or less, from the viewpoint of improving formulation stability.

[0071] <Other Ingredients> The following ingredients (additives, etc.) may be added to the detergent composition of the present invention, to the extent that they do not impair the properties of the present invention. Specifically, these include anti-redeposition agents, dispersants, bleaching agents, bleaching activators, enzymes, fluorescent dyes, antioxidants, pigments, fragrances, antimicrobial preservatives, defoaming agents such as silicones, and solvents.

[0072] <Composition, etc.> The total content (mass%) of component (A) and component (B) in the detergent composition is preferably 1% by mass or more, more preferably 2% by mass or more, even more preferably 5% by mass or more, and even more preferably 10% by mass or more, from the viewpoint of further improving the cleaning performance per unit mass of the detergent composition when cleaning clothing products containing fibers, etc., and from the viewpoint of reducing compounding costs, preferably 60% by mass or less, more preferably 50% by mass or less, and even more preferably 40% by mass or less. The content of component (A) contained in the detergent composition shall be based on a value calculated assuming the counterion is a potassium ion. That is, it is the content in terms of potassium salts, and the content of components (C-1) and (D) shall be based on a value calculated assuming the counterion is a sodium ion. That is, it is the content in terms of sodium salts.

[0073] The total content ratio of component (A), component (B), and component (C) in the aforementioned detergent composition is preferably 5% by mass or more and 85% by mass or less. The aforementioned content ratio indicates the total surfactant concentration in the detergent composition. Furthermore, from the viewpoint of improving cleaning performance, the aforementioned content ratio in the detergent composition is preferably 10% by mass or more, more preferably 15% by mass or more, and preferably 80% by mass or less, more preferably 70% by mass or less.

[0074] The cleaning agent composition preferably has a mass ratio of component (B) to component (A) ((B) / (A)) that is greater than 0 and 3 or less. The mass ratio indicates the content of component (B), which is an amphoteric surfactant, relative to the content of component (A), which is an anionic surfactant. Furthermore, the cleaning agent composition preferably has a mass ratio ((B) / (A)) that is greater than 0, more preferably 0.1 or more, more preferably 3 or less, more preferably 2 or less, even more preferably 1.5 or less, and even more preferably 1 or less, from the viewpoint of improving cleaning performance and foam suppression.

[0075] The mass ratio of component (C-1) to component (A) ((C-1) / (A)) is preferably 0 or more and 10 or less. The mass ratio indicates the content of component (C-1), which is another anionic surfactant, relative to the content of component (A), which is an anionic surfactant. Furthermore, the mass ratio ((C-1) / (A)) of the detergent composition is preferably 0 or more, preferably 10 or less, more preferably 8 or less, even more preferably 6 or less, and even more preferably 4 or less, from the viewpoint of improving cleaning performance, foaming, and formulation stability. Furthermore, from the viewpoint of reducing formulation costs, the mass ratio ((C-1) / (A)) is not particularly limited and only needs to be 0 or more.

[0076] The cleaning agent composition preferably has a mass ratio ((D) / (B)) of component (D) to component (B) of 0.3 to 1.8. The mass ratio indicates the content of component (D), which functions as an antifoaming agent that suppresses foaming, relative to the content of component (B), which has foaming properties. Furthermore, the mass ratio ((D) / (B)) of the cleaning agent composition is preferably 0.3 or more, more preferably 0.5 or more, and preferably 1.8 or less, more preferably 1.5 or less, from the viewpoint of improving cleaning performance and foam suppression.

[0077] The cleaning agent composition preferably has a total mass ratio of component (A) and component (C-1) to the total mass of component (A) and component (C), which is ([(A) + (C-1)] / [(A) + (C)]). The mass ratio represents the total content (total mass) of component (A), which corresponds to an anionic surfactant, and other anionic surfactants, relative to the total content (total mass) of anionic surfactants and nonionic surfactants. Furthermore, the mass ratio ([(A) + (C-1)] / [(A) + (C)]) of the cleaning agent composition is preferably 0.2 or higher, more preferably 0.3 or higher, and preferably 0.8 or lower, more preferably 0.7 or lower, from the viewpoint of improving formulation stability and improving cleaning performance against various types of dirt (e.g., sebum, particulate dirt such as mud and carbon, protein dirt, everyday dirt such as food spills).

[0078] The cleaning agent composition preferably has a mass ratio ((C-2) / (A)) of component (C-2) to component (A) of 0 to 20. The mass ratio indicates the content of the nonionic surfactant component (C-2) relative to the content of component (A), which corresponds to the anionic surfactant. Furthermore, the cleaning agent composition preferably has a mass ratio ((C-2) / (A)) of 0 or more, more preferably greater than 0, even more preferably 0.10 or more, even more preferably 0.20 or more, even more preferably 0.25 or more, even more preferably 0.30 or more, even more preferably 0.40 or more, and also preferably 20 or less, more preferably 18 or less, even more preferably 15 or less, even more preferably 10 or less, even more preferably 8 or less, even more preferably 6 or less, even more preferably 4 or less, even more preferably 3 or less, even more preferably 2 or less, even more preferably 1.5 or less, and even more preferably 1.0 or less.

[0079] The cleaning agent composition preferably has a mass ratio ((D) / (A)) of component (D) to component (A) of 0 to 3. The mass ratio indicates the content of component (D) to the content of component (A), which corresponds to an anionic surfactant. Furthermore, the cleaning agent composition preferably has a mass ratio ((D) / (A)) of 0 or more, more preferably greater than 0, even more preferably 0.10 or more, even more preferably 0.20 or more, even more preferably 0.30 or more, even more preferably 0.35 or more, even more preferably 0.40 or more, and also preferably 3 or less, more preferably 2.5 or less, even more preferably 2 or less, even more preferably 1.9 or less, even more preferably 1.8 or less, even more preferably 1.7 or less, even more preferably 1.5 or less, even more preferably 1.2 or less, and even more preferably 1.0 or less.

[0080] <Applications> The detergent composition of the present invention can be applied to hard surfaces such as clothing containing fibers, tableware, bathrooms, floors, and medical equipment. In particular, it can be used as a detergent composition for clothing, as it can clean oily stains and other contaminants attached to clothing products containing fibers, even at low temperatures.

[0081] <Cleaning Method> The present invention relates to a cleaning method using a cleaning solution containing component (A) and component (B). Component (A): Internal olefin sulfonate with 8 to 24 carbon atoms or a salt thereof. Component (B): Amine oxide compound represented by the following general formula (1). [In the formula, R １ R is a linear or branched alkyl group or alkenyl group having 10 to 20 carbon atoms, ２ and R ３ This is an alkyl group having 1 to 3 carbon atoms, or a hydroxyalkyl group. The cleaning method can use the cleaning solution and contains the same components as the cleaning agent composition, so the matters described for the cleaning agent composition can be applied as appropriate.

[0082] The cleaning method described above is preferably a cleaning method used for clothing. Since the cleaning method contains the same components as the cleaning agent composition described above, it can be applied to clothing containing fibers, and in particular, it can be used as a cleaning method for clothing, as it can clean oily stains and other contaminants attached to clothing products containing fibers, even at low temperatures.

[0083] In the aforementioned cleaning method, the concentration of component (A) at the time of use (during cleaning, during washing) is preferably 0.0001% by mass or more and 0.1% by mass or less, more preferably 0.001% by mass or more and 0.08% by mass or less, and even more preferably 0.005% by mass or more and 0.05% by mass or less, from the viewpoint of improving cleaning performance and foam suppression.

[0084] In the aforementioned cleaning method, the concentration of component (B) at the time of use (during cleaning, during washing) is preferably 0.00005% by mass or more and 0.02% by mass or less, more preferably 0.0005% by mass or more and 0.015% by mass or less, and even more preferably 0.001% by mass or more and 0.01% by mass or less, from the viewpoint of improving cleaning performance and foam suppression.

[0085] The cleaning solution, having a hardness exceeding 0°dH, can more effectively clean oily stains and other contaminants adhering to textile garments. From the viewpoint of further improving the cleaning performance of stains adhering to textile products, the hardness of the cleaning solution is preferably 0.5°dH or higher, more preferably 1°dH or higher, even more preferably 2°dH or higher, even more preferably 4°dH or higher, and preferably 30°dH or lower, more preferably 20°dH or lower, and even more preferably 16°dH or lower, in German hardness. Here, German hardness (°dH) is defined as the concentration of calcium and magnesium in water, expressed as CaCO3. ３ This refers to a converted concentration expressed as 1 mg / L (ppm) = approximately 0.056°dH (1°dH = 17.8 ppm). The calcium and magnesium concentrations for this German hardness are determined by chelation titration using ethylenediaminetetraacetate disodium salt.

[0086] Furthermore, the specific method for measuring the German hardness of water in this invention is shown below.

[0087] <Method for Measuring Water Hardness in Germany> [Reagents] ・0.01 mol / l EDTA-2Na solution: 0.01 mol / l aqueous solution of disodium ethylenediaminetetraacetate (titration solution, 0.01 M EDTA-Na2, manufactured by Sigma-Aldrich) ・Universal BT indicator (product name: Universal BT, manufactured by Dojin Chemical Research Institute Co., Ltd.) ・Ammonia buffer solution for hardness measurement (solution made by dissolving 67.5 g of ammonium chloride in 570 ml of 28 w / v% ammonia water and diluting the total volume to 1000 ml with deionized water) [Measuring Hardness] (1) Take 20 ml of water sample into a conical beaker using a volumetric pipette. (2) Add 2 ml of ammonia buffer solution for hardness measurement. (3) Add 0.5 ml of Universal BT indicator. Confirm that the solution after addition is reddish-purple. (4) While shaking the conical beaker well, add 0.01 mol / l EDTA-2Na solution dropwise from the burette, and the titration is terminated when the sample water turns blue. (5) The total hardness is calculated using the following formula: Hardness (°dH) = T × 0.01 × F × 56.0774 × 100 / A T: Titration volume of 0.01 mol / l EDTA-2Na solution (mL) A: Sample volume (20 mL, volume of sample water) F: Factor of 0.01 mol / l EDTA-2Na solution

[0088] Furthermore, the hardness of the water used in the cleaning method, such as the water used to prepare the cleaning solution and the water used for rinsing, can also be measured using the water hardness measurement method.

[0089] The content of component (A) in the detergent solution containing a solvent such as water in the detergent composition (especially during washing) is preferably 0.0001% by mass or more, more preferably 0.001% by mass or more, even more preferably 0.005% by mass or more, and preferably 0.1% by mass or less, and more preferably 0.05% by mass or less, from the viewpoint of improving detergent performance and foam suppression.

[0090] Furthermore, the content of component (B) in the cleaning solution containing a solvent such as water in the cleaning agent composition (especially during washing) is preferably 0.00005% by mass or more, more preferably 0.0005% by mass or more, even more preferably 0.001% by mass or more, and preferably 0.02% by mass or less, and more preferably 0.01% by mass or less, from the viewpoint of improving cleaning performance and foam suppression.

[0091] The temperature of the cleaning solution is preferably 0°C or higher, more preferably 5°C or higher, preferably 90°C or lower, more preferably 70°C or lower, and even more preferably 60°C or lower, from the viewpoint of improving the cleaning performance of oily stains and other dirt attached to clothing products containing fibers, regardless of whether the temperature is low or high. Furthermore, from the viewpoint of improving cleaning performance, the temperature of the cleaning solution is preferably 0°C or higher, more preferably 5°C or higher, and from the viewpoint of reducing environmental impact, preferably 40°C or lower, more preferably 30°C or lower.

[0092] <Fibers> The objects to be cleaned using the cleaning agent composition are not particularly limited, but examples include clothing products containing fibers. The fibers contained in the clothing product may be either hydrophobic fibers or hydrophilic fibers.

[0093] Examples of the hydrophobic fibers include protein fibers (milk protein casein fibers, Promix, etc.), polyamide fibers (nylon, etc.), polyester fibers (polyester, etc.), polyacrylonitrile fibers (acrylic, etc.), polyvinyl alcohol fibers (vinylon, etc.), polyvinyl chloride fibers (polyvinyl chloride, etc.), polyvinylidene chloride fibers (vinylidene, etc.), polyolefin fibers (polyethylene, polypropylene, etc.), polyurethane fibers (polyurethane, etc.), polyvinyl chloride / polyvinyl alcohol copolymer fibers (Polycloral, etc.), polyalkylene parahydroxybenzoate fibers (benzoate, etc.), polyfluoroethylene fibers (polytetrafluoroethylene, etc.), glass fibers, carbon fibers, alumina fibers, silicone carbide fibers, rock fibers, slag fibers, metal fibers (gold thread, silver thread, steel fiber), etc.

[0094] Examples of the hydrophilic fibers include seed hair fibers (cotton, cotton, kapok, etc.), bast fibers (hemp, flax, ramie, cannabis, jute, etc.), leaf vein fibers (Manila hemp, sisal hemp, etc.), coconut fibers, rush, straw, animal hair fibers (wool, mohair, cashmere, camel hair, alpaca, vicuña, angora, etc.), silk fibers (domestic silk, wild silk), feathers, and cellulose fibers (rayon, polynosic, cupro, acetate, etc.). The detergent composition of the present invention has the effect of cleaning oily (e.g., beef tallow, etc.) stains attached to clothing products containing the aforementioned fibers, even at low temperatures, compared to conventionally known detergent compositions.

[0095] <Textile Products> In this invention, clothing products refer to woven fabrics, knitted fabrics, nonwoven fabrics, etc., using the hydrophobic fibers or hydrophilic fibers, and products such as undershirts, T-shirts, dress shirts, blouses, slacks, hats, handkerchiefs, towels, knitwear, socks, underwear, tights, etc., obtained using the same.

[0096] <Additives for Detergent Compositions> The present invention relates to an additive for detergent compositions containing component (A) and component (B). Component (A): Internal olefin sulfonate or a salt thereof having 8 to 24 carbon atoms. Component (B): Amine oxide compound represented by the following general formula (1). [In the formula, R １ R is a linear or branched alkyl group or alkenyl group having 10 to 20 carbon atoms, ２ and R ３ This is an alkyl group having 1 to 3 carbon atoms, or a hydroxyalkyl group. The additive for the detergent composition can be used by adding it to other detergent compositions (detergents), and the combined use with other detergent compositions may result in a better cleaning effect, making it useful. The raw materials (components) used in the additive for the detergent composition are the same as those used in the detergent composition, and the content of each component is also the same.

[0097] In addition to the embodiments described above, the present invention discloses the following: <1> A detergent composition containing component (A) and component (B). Component (A): Internal olefin sulfonate having 8 to 24 carbon atoms or a salt thereof. Component (B): Amine oxide compound represented by the following general formula (1). [In the formula, R １ R is a linear or branched alkyl group or alkenyl group having 10 to 20 carbon atoms, ２ and R ３The first is an alkyl group having 1 to 3 carbon atoms, or a hydroxyalkyl group. <2> The cleaning agent composition according to <1>, wherein the number of carbon atoms of the internal olefin sulfonic acid or salt thereof, which is component (A), is 8 to 24 carbon atoms, and is 8 or more, preferably 10 or more, more preferably 12 or more, even more preferably 16 or more, and 24 or less, preferably 22 or less, even more preferably 20 or less, and even more preferably 18 or less. <3> The cleaning agent composition according to <1> or <2>, wherein the first is preferably one or more selected from lauryldimethylamine oxide, myristyldimethylamine oxide, hexadecyldimethylamine oxide, and oleyldimethylamine oxide, and more preferably one or more selected from lauryldimethylamine oxide and myristyldimethylamine oxide. <4> The cleaning agent composition according to any one of <1> to <3>, wherein the cleaning agent composition contains component (C) and / or component (D). Component (C): One or more selected from component (C-1) and component (C-2) Component (C-1): Anionic surfactant excluding component (A) and component (D) Component (C-2): Polyoxyalkylene alkyl ether having an HLB value of 9 or more and 18 or less Component (D): Fatty acid or salt thereof <5> The detergent composition according to <4>, wherein the anionic surfactant excluding component (A) and component (D), which is component (C-1), is preferably one or more selected from sulfates and sulfonates, more preferably one or more selected from alkyl sulfates, alkylbenzene sulfonates, and polyoxyalkylene alkyl ether sulfates, and even more preferably one or more selected from sodium lauryl sulfate, sodium polyoxyethylene lauryl ether sulfate, and sodium linear dodecylbenzenesulfonate.<6> The detergent composition according to <4> or <5>, wherein the (C-2) component, a polyoxyalkylene alkyl ether having an HLB value of 9 or more and 18 or less, is preferably one or more selected from polyoxyethylene alkyl ether and polyoxyethylene polyoxypropylene alkyl ether, more preferably one or more selected from polyoxyethylene lauryl ether, polyoxyethylene myristyl ether, polyoxyethylene polyoxypropylene lauryl ether, and polyoxyethylene polyoxypropylene myristyl ether. <7> The detergent composition according to any one of <4> to <6>, wherein the HLB value of the (C-2) component is preferably 9 or more and 18 or less, more preferably 9.5 or more, even more preferably 10 or more, and preferably 18 or less, more preferably 17 or less, even more preferably 16 or less, and even more preferably 15 or less. <8> The detergent composition according to any one of <4> to <7>, wherein the mass ratio of component (C-1) to component (A) ((C-1) / (A)) is preferably 0 or more and 10 or less, preferably 0 or more, preferably 10 or less, more preferably 8 or less, even more preferably 6 or less, and even more preferably 4 or less. <9> The detergent composition according to any one of <1> to <8>, wherein the mass ratio of component (B) to component (A) ((B) / (A)) is preferably greater than 0 and 3 or less, preferably greater than 0, more preferably 0.1 or more, preferably 3 or less, more preferably 2 or less, even more preferably 1.5 or less, and even more preferably 1 or less. <10> The detergent composition according to any one of <4> to <9>, wherein the total content of component (A), component (B), and component (C) is preferably 5% by mass or more and 85% by mass or less, preferably 10% by mass or more, more preferably 15% by mass or more, preferably 80% by mass or less, more preferably 70% by mass or less. <11> The detergent composition according to any one of <4> to <10>, wherein the detergent composition contains component (D).<12> The detergent composition according to any one of <4> to <11>, wherein the component (D) is preferably a fatty acid or a salt thereof, more preferably a mixture of coconut-derived fatty acids (coconut oil fatty acids) containing a large amount of lauric acid, myristic acid, palmitic acid, stearic acid, isostearic acid, and isopalmitic acid, and one or more selected from salts thereof. <13> The detergent composition according to <12>, wherein the salt of the fatty acid is preferably an alkali metal salt, more preferably a sodium salt or potassium salt, and even more preferably a sodium salt. <14> The detergent composition according to any one of <4> to <13>, wherein the mass ratio of component (D) to component (A) ((D) / (A)) is preferably 0 or more, more preferably greater than 0, even more preferably 0.10 or more, even more preferably 0.20 or more, even more preferably 0.30 or more, even more preferably 0.35 or more, even more preferably 0.40 or more, and preferably 3 or less, more preferably 2.5 or less, even more preferably 2 or less, even more preferably 1.9 or less, even more preferably 1.8 or less, even more preferably 1.7 or less, even more preferably 1.5 or less, even more preferably 1.2 or less, and even more preferably 1.0 or less. <15> The detergent composition according to any one of <4> to <14>, wherein the mass ratio of component (D) to component (B) ((D) / (B)) is preferably 0.3 or more and 1.8 or less, and preferably 0.3 or more, more preferably 0.5 or more, and preferably 1.8 or less, even more preferably 1.5 or less. <16> The detergent composition according to any one of <4> to <15>, wherein the total mass ratio of component (A) and component (C-1) to the total mass of component (A) and component (C-1) ([(A) + (C-1)] / [(A) + (C)]) is preferably 0.2 or more and 0.8 or less, preferably 0.2 or more, more preferably 0.3 or more, preferably 0.8 or less, and more preferably 0.7 or less. <17> The detergent composition according to any one of <4> to <16>, wherein the detergent composition contains component (A), component (B), component (C), and component (D). <18> The detergent composition according to any one of <1> to <17> is for use on clothing.<19> A method of cleaning using a cleaning solution containing component (A) and component (B). Component (A): Internal olefin sulfonate having 8 to 24 carbon atoms or a salt thereof. Component (B): Amine oxide compound represented by the following general formula (1). [In the formula, R １ R is a linear or branched alkyl group or alkenyl group having 10 to 20 carbon atoms, ２ and R ３ is an alkyl group having 1 to 3 carbon atoms, or a hydroxyalkyl group. ] <20> The washing method according to <19> for use on clothing. <21> The washing method according to <19> or <20>, wherein the concentration of component (A) when used is preferably 0.0001% by mass or more and 0.1% by mass or less, more preferably 0.001% by mass or more and 0.08% by mass or less, and even more preferably 0.005% by mass or more and 0.05% by mass or less. <22> The washing method according to any one of <19> to <21>, wherein the concentration of component (B) when used is preferably 0.00005% by mass or more and 0.02% by mass or less, more preferably 0.0005% by mass or more and 0.015% by mass or less, and even more preferably 0.001% by mass or more and 0.01% by mass or less. <23> An additive for a detergent composition containing component (A) and component (B). (A) Component: Internal olefin sulfonate with 8 to 24 carbon atoms or a salt thereof (B) Component: Amine oxide compound represented by the following general formula (1) [In the formula, R １ R is a linear or branched alkyl group or alkenyl group having 10 to 20 carbon atoms, ２ and R ３ This is an alkyl group or hydroxyalkyl group having 1 to 3 carbon atoms.

[0098] The present invention will be described in detail below based on examples.

[0099] <Ingredients> The following ingredients were used in the examples, comparative examples, and formulation examples. The formulation examples shown above represent specific formulations that fall within the scope of the present invention.

[0100] (A) Components: Internal olefin sulfonate or its salts A-1: ​​Potassium internal olefin sulfonate with 16 carbon atoms A-2: Sodium internal olefin sulfonate with 16 carbon atoms A-3: Potassium internal olefin sulfonate with 18 carbon atoms A-4: Sodium internal olefin sulfonate with 18 carbon atoms

[0101] (B) Components: Amine oxides B-1: Lauryldimethylamine oxide B-2: Myristyldimethylamine oxide

[0102] (C-1) Component: Anionic surfactant other than components (A) and (D) C-1-1: Sodium lauryl sulfate, product name: Emal 10G, manufactured by Kao Corporation C-1-2: Sodium polyoxyethylene lauryl ether sulfate, a compound with an average of 2 moles of oxyethylene groups (EO) added C-1-3: Sodium tetradecenesulfonate, product name: K-Liporan PJ-400CJ, manufactured by Lion Specialty Chemicals Co., Ltd. C-1-4: Sodium linear alkylbenzene sulfonate, product name: Neoperex G-25, manufactured by Kao Corporation C-1-5: α-olefin sulfonate with 10 to 16 carbon atoms

[0103] (C-2) Component: Polyoxyalkylene alkyl ether with an HLB of 9 to 18 C-2-1: Nonionic surfactant obtained by adding an average of 5 moles of oxyethylene groups (EO) to a primary alcohol with 12 carbon atoms, HLB: 10.5 C-2-2: Nonionic surfactant obtained by adding an average of 6 moles of oxyethylene groups (EO) to a primary alcohol with 12 carbon atoms, HLB: 12.1 C-2-3: Nonionic surfactant obtained by adding an average of 9 moles of oxyethylene groups (EO) to a primary alcohol with 12 carbon atoms, HLB: 13.6 C-2-4: Nonionic surfactant obtained by adding an average of 12 moles of oxyethylene groups (EO) to a primary alcohol with 12 carbon atoms, HLB: 15.3 C-2-5: A nonionic surfactant obtained by adding an average of 9 moles of oxyethylene groups (EO) to a primary alcohol with 12-14 carbon atoms, then adding an average of 2 moles of oxypropylene groups (PO), and finally adding another 9 moles of oxyethylene groups (EO). HLB: 14.4

[0104] (D) Ingredients: Fatty acids or salts thereof D-1: Coconut fatty acid, Product name: Lunac L-55, Manufactured by Kao Corporation

[0105] (E) Ingredients: Sodium hydroxide E-1: 50% sodium hydroxide solution (for precision analysis), manufactured by Fujifilm Wako Pure Chemical Industries, Ltd.

[0106] (F) Ingredients: Citric acid F-1: Citric acid (crystalline) Food additive, manufactured by Fujifilm Wako Pure Chemical Corporation

[0107] (G) Ingredients: Water (ion-exchanged water)

[0108] Other ingredients: Fragrances, enzymes, and other ingredients commonly used in cleaning agents.

[0109] [Synthesis of Component (A)] 7000 g (28.9 mol) of 1-hexadecanol (product name: Calcol 6098, manufactured by Kao Corporation) and 700 g (10% by mass relative to the raw material alcohol) of γ-alumina (STREM Chemicals, Inc.) as a solid acid catalyst were charged into a flask equipped with a stirring device. Under stirring, nitrogen (7000 mL / min.) was passed through the system at 280°C, and the reaction time was adjusted as appropriate according to the desired internal olefin to obtain crude internal olefin. The obtained crude internal olefin was transferred to a distillation flask and distilled at 136-160°C / 4.0 mmHg to obtain a carbon-16 internal olefin with 100% olefin purity. The obtained internal olefin was subjected to a sulfonation reaction using a thin-film sulfonation reactor with an external jacket, by passing sulfur trioxide gas and cooling water at 20°C through the external jacket of the reactor to obtain a sulfonated product. Note that SO2 in the sulfonation reaction ３The molar ratio of the internal olefin was set to 1.09. The obtained sulfonate was added to an alkaline aqueous solution prepared with 1.5 molar times the theoretical acid value of potassium hydroxide, and neutralized at 30°C for 1 hour with stirring. The resulting neutralized product was hydrolyzed by heating in an autoclave at 160°C for 1 hour to obtain the product. By evaporating this product to dryness, a potassium salt of the carbon-16 internal olefin sulfonate (component (A-1)) was obtained. The mass ratio of the olefin (potassium olefin sulfonate) to the hydroxyl (potassium hydroxyalkanesulfonate) in the obtained component (A-1) was 17 / 83, and the average double bond position was 4.2. Components (A-2) to (A-4) can also be prepared by the same method as component (A-1).

[0110] [Preparation of hard water used for preparing the washing solution] Calcium chloride (manufactured by Fujifilm Wako Pure Chemical Industries, Ltd.) and magnesium chloride hexahydrate (manufactured by Fujifilm Wako Pure Chemical Industries, Ltd.) were added to deionized water in a mass ratio of 8:2 to obtain hard water with hardness levels of 4°dH, 8°dH, and 16°dH.

[0111] [Preparation of Cleaning Agent Composition (Cleaning Solution)] Based on the formulations shown in Tables 1 to 5, the cleaning agent compositions for the examples and comparative examples were specifically prepared as follows. First, a stirrer piece was placed in a 100 mL glass beaker. Component (A) and, optionally, component (C) were added and stirred. After stirring, component (E), an alkaline component that adjusts the pH, was added to adjust the solution to alkalinity. Then, component (B) and, optionally, component (D) were added and stirred thoroughly. The temperature of the contents (aqueous solution) at this time was in the range of 15 to 30°C. The stirring speed during this preparation was 500 r / min, and the stirring time was 60 minutes. The pH of components (E) and (F), which are pH adjusters, and component (G), which is used for concentration adjustment, were adjusted as appropriate to adjust the pH to 7.8.

[0112] Examples of formulations for embodiments of the present invention are shown below. The formulation examples shown in Table 6 are detergent compositions, and as with the examples and comparative examples, the pH adjusting agents (E) and (F) used when preparing the detergent composition, and the concentration adjustment agent (G) used for the like, are adjusted in appropriate amounts to make a total of 100% by mass.

[0113] [Evaluation Textile Products] 200 μL of beef tallow (Sigma-Aldrich, product name: Beef tallow, CP) was applied to each sheet of cloth (CFT Corporation, product name: PCN-01) with a polyester:cotton ratio of 65:35. The beef tallow was colored by dissolving Sudan III (dark reddish-brown powder, Fujifilm Wako Pure Chemical Industries, Ltd.) to a concentration of 0.1% by mass. After application, the cloths were left to stand at 50°C for 1.5 hours, and then left to stand overnight at 20°C to prepare the contaminated cloths.

[0114] [Washing Test] Washing operations were performed using a turgotometer (manufactured by Ueshima Seisakusho). The total amount of the main washing components used in the obtained washing agent composition (the main washing components refer to components (A), (B), and (C), and do not include other additives) was mixed with the hard water (hardness 8°dH was used for examples other than Examples 34 and 36 and comparative examples; hardness 4°dH was used for Example 34; hardness 16°dH was used for Example 36) to prepare the washing solution. In the comparative examples, the main components were not included, and in this case, the concentration was adjusted to 200 ppm based on the total amount of only the main components used. The temperature of the washing solution was adjusted to 15°C (low temperature). 0.6 L of the washing solution and four of the evaluation textile products were placed in a 1 L stainless steel beaker for the washing test. The evaluation textiles were washed with a turgotometer at 85 rpm for 15 minutes. After washing, it was rinsed thoroughly with tap water and then spun dry.

[0115] [Method for Evaluating Washability] The washability of the evaluated textile products obtained in the washing test described above was measured using the following method, and the average value of four samples was calculated. The color difference of the raw fabric before soiling and before and after washing was measured using a color difference system (CR-400 / 410 manufactured by Konica Minolta, Inc.), and the washability (%) was calculated using the following formula to evaluate the washability at 15°C (low temperature). From the viewpoint of washability under low temperature (15°C) conditions, a washability of 10% or more is preferable, 10.5% or more is more preferable, and 11% or more is even more preferable. Washability (%) = 100 × [(Reflectance after washing - Reflectance before washing) / (Reflectance of raw fabric - Reflectance before washing)]

[0116] [Foaming Test] 30 mL of washing solution adjusted to 15°C (low temperature) was placed in a No. 8 screw tube (manufactured by Maruemu Co., Ltd.), fixed to a shaker (BR-43FL, manufactured by TAITEC Co., Ltd.), and shaken at 300 rpm for 5 minutes. After shaking, it was allowed to stand for 5 minutes, and the foam height (cm) from the water surface was measured to evaluate the foam suppression performance at 15°C (low temperature). From the viewpoint of foam suppression performance under low temperature (15°C) conditions, the foam height from the water surface is preferably 5.5 cm or less, more preferably 5 cm or less, and even more preferably 4.5 cm or less.

[0117]

[0118]

[0119]

[0120]

[0121]

[0122]

[0123] From the evaluation results above, it was confirmed that in all examples, using a detergent composition containing desired components with low environmental impact simultaneously satisfied both cleaning performance and foam suppression under low-temperature conditions. Furthermore, in Examples 34 to 36, it was confirmed that cleaning solutions using hard water adjusted to hardnesses of 4°dH, 8°dH, and 16°dH simultaneously satisfied both cleaning performance and foam suppression. On the other hand, in the comparative examples, since detergent compositions that did not contain either or both of components (A) or (B) were used, it was confirmed that no solution that simultaneously satisfied both cleaning performance and foam suppression under low-temperature conditions could be obtained. It is also expected that the formulation examples listed in Table 6 above will exhibit the same effects as those in the above examples.

Claims

1. A detergent composition containing component (A) and component (B). Component (A): Internal olefin sulfonate or a salt thereof having 8 to 24 carbon atoms. Component (B): Amine oxide compound represented by the following general formula (1). [In the formula, R １ R is a linear or branched alkyl group or alkenyl group having 10 to 20 carbon atoms, ２ and R ３ This is an alkyl group or hydroxyalkyl group having 1 to 3 carbon atoms.

2. The detergent composition according to claim 1, wherein the detergent composition contains component (C) and / or component (D). Component (C): One or more selected from component (C-1) and component (C-2) Component (C-1): Anionic surfactant excluding components (A) and (D) Component (C-2): Polyoxyalkylene alkyl ether having an HLB value of 9 or more and 18 or less Component (D): Fatty acid or salt thereof 3. The detergent composition according to claim 2, wherein the anionic surfactant, excluding the components (A) and (D) which are component (C-1), is one or more selected from sulfates and sulfonates.

4. The detergent composition according to claim 2, wherein the mass ratio of component (C-1) to component (A) ((C-1) / (A)) is 0 or more and 10 or less.

5. The detergent composition according to claim 1 or 2, wherein the mass ratio of component (B) to component (A) ((B) / (A)) is greater than 0 and less than or equal to 3.

6. The detergent composition according to claim 2, wherein the total content ratio of component (A), component (B), and component (C) is 5% by mass or more and 85% by mass or less.

7. The detergent composition according to claim 2, wherein the detergent composition contains component (D).

8. The detergent composition according to claim 2, wherein the mass ratio of component (D) to component (B) ((D) / (B)) is 0.3 or more and 1.8 or less.

9. The detergent composition according to claim 2, wherein the ratio of the total mass of component (A) and component (C-1) to the total mass of component (A) and component (C-1) ([(A) + (C-1)] / [(A) + (C)]) is 0.2 or more and 0.8 or less.

10. The detergent composition according to claim 2, wherein the detergent composition contains component (A), component (B), component (C), and component (D).

11. A detergent composition according to claim 1 or 2, wherein the detergent composition is for use in clothing.

12. A method of cleaning using a cleaning solution containing component (A) and component (B). Component (A): Internal olefin sulfonate with 8 to 24 carbon atoms or a salt thereof. Component (B): Amine oxide compound represented by the following general formula (1). [In the formula, R １ R is a linear or branched alkyl group or alkenyl group having 10 to 20 carbon atoms, ２ and R ３ This is an alkyl group or hydroxyalkyl group having 1 to 3 carbon atoms.

13. The washing method according to claim 12, for use on clothing.

14. The cleaning method according to claim 13, wherein the concentration of component (A) at the time of use is 0.0001% by mass or more and 0.1% by mass or less.

15. An additive for a detergent composition containing component (A) and component (B). Component (A): An internal olefin sulfonic acid having 8 to 24 carbon atoms or a salt thereof. Component (B): An amine oxide compound represented by the following general formula (1). [In the formula, R １ is a linear or branched alkyl group or an alkenyl group having 10 to 20 carbon atoms, and R ２ and R ３ are alkyl groups having 1 to 3 carbon atoms or hydroxyalkyl groups.]

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