Detergent composition, cleaning method, and additive for detergent composition

Abstract

The present invention provides a detergent composition, a cleaning method, and an additive for the detergent composition, which have a low environmental impact and excellent cleaning performance and foam suppression at low temperatures. [Solution] A detergent composition containing component (A) and component (B). (A) Components: Internal olefin sulfonate with 8 to 24 carbon atoms or its salt (B) Component: Amine oxide compound represented by the following general formula (1) [Formula 1] JPEG2026094059000017.jpg30166[wherein, 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.

Description

[Technical Field]

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

[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. [Prior art documents] [Patent Documents]

[0006] [Patent Document 1] US2022 / 0010236 issue [Overview of the project] [Problems that the invention aims to solve]

[0007] Therefore, the problem to be solved by the present invention is to provide a cleaning agent composition, a cleaning method, and an additive for a cleaning agent composition, which have a low environmental impact, maintain cleaning performance at low temperatures, and have excellent foam suppression properties.

Means for Solving the Problem

[0008] Therefore, as a result of intensive studies to solve the above problems, the present inventors have found that the above problems can be solved by the following cleaning agent composition.

[0009] That is, the present invention relates to a cleaning agent 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)

Chemical formula

[0010] The present invention relates to a method of cleaning using a cleaning liquid 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)

Chemical formula

[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)

Chemical formula

Advantages of the Invention

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

Modes for Carrying Out the Invention

[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)

Chemical formula

[0015] <(A) component> The detergent composition of the present invention contains component (A), wherein component (A) is an internal olefin sulfonate having 8 to 24 carbon atoms or a salt thereof, and corresponds to an anionic surfactant. The aforementioned component (A) can be obtained from naturally derived raw materials, exhibits biodegradability, foaming properties, 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., 0-20°C). Furthermore, it is a compound with lower adsorption to fibers during the washing of the aforementioned clothing products. It also has the effect of hard water resistance and promoting the reduction of kraft point. The internal olefin sulfonate or its salt, which is component (A), has a hydrophobic portion and a hydrophilic portion in its structure. In particular, the internal olefin sulfonate or its salt 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 the present 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 aforementioned internal olefin can be obtained by heating a higher alcohol having 8 to 24 carbon atoms in the presence of an acid catalyst for approximately 3 to 24 hours. Note that α-olefins differ from internal olefins in that their double bond is located at position 1, i.e., at the terminal.

[0018] When the internal olefin is sulfonated, β-sartone is quantitatively produced. Some of the β-sartone is converted to γ-sartone and olefin sulfonic acid, which are then 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 resulting 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 resulting 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, a mixture of the above-mentioned hydroxyalkanesulfonic acid or a salt thereof and olefin sulfonic acid or a salt thereof is collectively referred to as internal olefin sulfonic acid or a salt thereof. Furthermore, the hydroxyalkanesulfonic acid or its salt is also referred to as the hydroxy form of 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 internal olefin sulfonic acid or its salt (hereinafter also referred to as "IOS").

[0019] The content of each compound with different sulfonic acid group positions in component (A) can be measured by high-performance liquid chromatography-mass spectrometry (hereinafter abbreviated as "HPLC-MS"). In this specification, the content of each compound with different sulfonic acid group positions shall be determined as the mass ratio based on the HPLC-MS peak area of ​​the compounds with sulfonic acid groups at each position in the total HAS isomer of component (A).

[0020] In component (A), the number of carbon atoms in the internal olefin sulfonate or its salt represents the number of carbon atoms in the internal olefin to which the sulfonate is covalently bonded. From the viewpoint of further improving the cleaning performance of oily stains and other grime attached to clothing products containing fibers, the number of carbon atoms in the internal olefin sulfonate or its salt in component (A) 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.

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

[0022] In component (A) above, a potassium salt of internal olefin sulfonate having 16 carbon atoms is preferred as the internal olefin sulfonate or its salt.

[0023] The internal olefin sulfonic acid or its salt is a mixture of a hydroxyl form (HAS) and an olefin form (IOS). The mass ratio (olefin form / hydroxyl form) of the content of the olefin form of the internal olefin sulfonic acid or its salt in component (A) is preferably 0 / 100 or more, more preferably 5 / 95 or more, even more preferably 10 / 90 or more, and preferably 50 / 50 or less, more preferably 40 / 60 or less, even 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 internal olefin sulfonate or its salt to the content of the olefin form of internal olefin sulfonate or its salt in component (A) can be determined by separating the hydroxy and olefin forms from component (A) and the resulting detergent composition by high-performance liquid chromatography (HPLC), identifying each by mass spectrometry (MS), and calculating the proportion of each from the HPLC-MS peak area.

[0025] The aforementioned 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 is 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 the sulfonic acid group. The reaction can be carried out at a temperature of 20 to 40°C. The aforementioned hydrolysis reaction can be carried out, for example, at 90-200°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 carbon atom, or, if necessary, multiple types of internal olefin sulfonic acid or its salts having different 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 between 8 and 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 aforementioned detergent composition may contain component (A) in an amount greater than 0% by mass and less than or equal to 50% by mass. 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] <(B) component> 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 both hydrophobic and hydrophilic parts in its structure, and therefore exhibits 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 for oils and fats where the proportion of solid fat increases at low temperatures (e.g., 0-20°C), thus having the effect of cleaning oily stains and other grime attached to clothing products, including fibers, even at low temperatures. Furthermore, component (B) may be used alone or in combination of two or more types. [ka] [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. Furthermore, 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 3 From the viewpoint of availability, the carbon atoms have 1 to 3 carbon atoms, preferably 1 to 2 carbon atoms, and more preferably 1 carbon atom. Furthermore, 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 contains preferably 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] <(C) component> The detergent composition of the present invention may contain component (C), wherein component (C) is one or more selected from component (C-1) and component (C-2), and preferably component (C-1) is an anionic surfactant other than component (A) and component (D), and component (C-2) is a polyoxyalkylene alkyl ether having an HLB value of 9 or more and 18 or less. The aforementioned (C-1) component is an anionic surfactant, and is a compound with excellent emulsifying, dispersing, and foaming properties. Furthermore, because component (C-2) is a nonionic surfactant, it is possible to achieve a balance between hydrophilicity and hydrophobicity, resulting in a compound with excellent formulation stability and cleaning properties.

[0035] <(C-1) component: Anionic surfactant excluding components (A) and (D)> The (C-1) component is an anionic surfactant other than the (A) and (D) components, and is not particularly limited as long as it is a surfactant having an anionic hydrophilic group, and 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-like structures (e.g., polyoxyalkylene groups, etc.). Furthermore, the (C-1) component may be used alone or in combination of two or more types.

[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, sulfonate, amino acid salt, dicarboxylate, polyether carboxylate, amide ether carboxylate, or 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, triethanolamine acyl glutamate of N-coconut oil fatty acid, sodium N-lauroyl glycine, triethanolamine N-myristoyl glycine, potassium N-lauroyl-β-alanine, triethanolamine N-lauroyl rheonine, sodium N-lauroyl sarcosinate, sodium N-lauroyl-N-methyl-β-alanine, and triethanolamine N-lauroyl-N-methyl-β-alanine; sodium lauroyl-iminodiacetate, triethanolamine lauroyl-iminodiacetate Acyliminodiacetates such as amines, sodium coconut oil fatty acid acyliminodiacetate, disodium lauroyliminodiacetate, and 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, and sodium polyglyceryl lauryl ether acetate; acylated peptides such as coconut oil fatty acid silk peptide; amide ether carboxylates such as sodium polyoxyethylene laurate amide ether carboxylate, sodium polyoxyethylene myristinate amide ether carboxylate, and 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, and 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, sodium 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-sulfolaurate, methyl α-sulfomyristate, and methyl α-sulfolaurate (EO)n;N-acylmethyl-taurine salts such as potassium coconut oil fatty acid acyl-N methyl taurate, sodium lauroyl-N methyl taurate, potassium lauroyl-N methyl taurate, lauroyl-N methyl taurate triethanolamine, sodium myristoyl-N methyl taurate, myristoyl-N methyl taurate triethanolamine, sodium coconut oil fatty acid acyl-N methyl taurate, and sodium coconut oil fatty acid acyl-N methyl taurate 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 for the (C-1) component, from the viewpoint of improving cleaning performance, ease of availability, and reduction of compounding 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 aforementioned (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] <(C-2) Component: Polyoxyalkylene alkyl ether with an HLB value of 9 to 18> The aforementioned (C-2) component is a polyoxyalkylene alkyl ether with an HLB value of 9 to 18, and corresponds to a nonionic surfactant. The aforementioned (C-2) component is a nonionic surfactant and is a compound with excellent formulation stability and cleaning properties. Furthermore, 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). R 4 (CO) m O-(AO) n -R 5 (2) [In the formula, R 4 R is an aliphatic hydrocarbon group having 8 to 22 carbon atoms, 5is a hydrogen atom or a methyl group. CO is a carbonyl group, and m is a number between 0 and 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 between 1 and 45.

[0044] The aforementioned R 4 The 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. Furthermore, the AO group may be an oxyalkylene group comprising an oxyethylene group and another oxyalkylene group, such as an oxypropylene group. The oxypropylene group is preferred as the other oxyalkylene 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 aforementioned m is the average number of moles added of the CO groups, preferably 0 or 1, and more preferably 0.

[0049] The n is the average number of moles of AO groups added, and from the viewpoint of improving washability and 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 either 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 determined by the following formula. HLB value = 20 × (MH / M) [MH: Molecular weight of the hydrophilic group, M: Molecular weight of the (C-2) component] For 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 added moles of polyoxyethylene groups, the molecular weight obtained from the average number of added moles should be used. In addition, the polyoxypropylene group should be 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 aforementioned detergent composition may contain 0% to 50% by mass of component (C). Furthermore, the content of component (C) 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.

[0055] The detergent composition may contain 0% to 50% by mass of component (C-2). Furthermore, the content of component (C-2) 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.

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

[0057] <(D) component> 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. Furthermore, component (D) may be used alone or in combination of two or more types. Also, component (D) shall not contain component (C-1) as described above.

[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 formulation 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 aforementioned detergent composition may contain 0% to 10% by mass of component (D). The content of component (D) is kept lower than the proportion of defoaming agents contained in ordinary detergent compositions, thereby suppressing the reduction in cleaning effect caused by the inclusion of the defoaming agent. Furthermore, the detergent composition contains, from the viewpoint of improving foam suppression, preferably more than 0% by mass, more preferably 0.3% by mass or more, and from the viewpoint of improving cleaning performance, 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 and exhibits excellent cleaning and foaming properties 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 detergent composition is often used after being diluted with water or other solvents during washing (laundry). Therefore, the detergent composition diluted with a solvent is sometimes referred to as a cleaning solution.

[0066] <Component (E) and Component (F)> From the viewpoint of the long-term stability of the detergent composition (cleaning solution), the detergent composition of the present invention may appropriately use an alkaline component as component (E) and an acidic component as component (F) as pH adjusters. Examples of component (E) include sodium hydroxide, potassium hydroxide, alkanolamine, ammonia, etc. Furthermore, as component (F), examples 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, one method is to adjust the pH of the cleaning agent 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.

[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 solutions 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) Ingredient: Water> The aforementioned 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). The aforementioned water can include deionized water (sometimes called ion-exchanged water), purified water, or tap water.

[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 cleaning agent composition of the present invention may contain the following components (additives, etc.) 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 washing clothing products containing fibers, 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. Furthermore, the content of component (A) in the detergent composition shall be based on a value calculated assuming the counterion is a potassium ion; that is, the content in terms of potassium salts. In addition, the content of components (C-1) and (D) shall be based on a value calculated assuming the counterion is a sodium ion; that is, the content in terms of sodium salts.

[0073] The total content 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 content ratio indicates the total surfactant concentration in the detergent composition. Furthermore, the detergent composition preferably has a content ratio of 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, from the viewpoint of improving cleaning performance.

[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 mass ratio ((B) / (A)) of the detergent composition is preferably greater than 0, more preferably 0.1 or greater, 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 greater, 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 detergent performance, foaming, and formulation stability. Also, from the viewpoint of reducing compounding costs, the mass ratio ((C-1) / (A)) is not particularly limited as long as it is 0 or greater.

[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 detergent composition is preferably 0.3 or higher, more preferably 0.5 or higher, and preferably 1.8 or lower, more preferably 1.5 or lower, from the viewpoint of improving cleaning performance and foam suppression.

[0077] The detergent composition preferably has a total mass ratio of component (A) and component (C-1) to the total mass of component (A) and component (C), ([(A)+(C-1)] / [(A)+(C)]) of 0.2 or more and 0.8 or less. The mass ratio represents the total content (total mass) of component (A), which corresponds to anionic surfactants, 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 detergent 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 detergent 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 mass ratio ((C-2) / (A)) of the detergent composition 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 0.25 or more, even more preferably 0.30 or more, even more preferably 0.40 or more, and 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 detergent 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) relative to the content of component (A), which corresponds to an anionic surfactant. Furthermore, the mass ratio ((D) / (A)) of the detergent composition 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.

[0080] <Application> 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 method of cleaning using a cleaning solution containing component (A) and component (B). (A) Components: Internal olefin sulfonate with 8 to 24 carbon atoms or its salt (B) Component: Amine oxide compound represented by the following general formula (1) [ka] [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. The cleaning method described above 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) during use (cleaning, 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 aforementioned cleaning solution, having a hardness exceeding 0°dH, can more effectively clean oily stains and other contaminants attached to clothing products, including fibers. From the viewpoint of further improving the cleaning performance of dirt 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, the German hardness (°dH) refers to the concentration of calcium and magnesium in water, expressed as a CaCO3 equivalent concentration of 1 mg / L (ppm) = approximately 0.056°dH (1°dH = 17.8 ppm). The calcium and magnesium concentrations required for this German hardness can be determined by chelation titration using disodium ethylenediaminetetraacetate.

[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> 〔reagent〕 • 0.01 mol / l EDTA-2Na solution: A 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 Laboratories Co., Ltd.) • Ammonia buffer solution for hardness measurement (67.5g of ammonium chloride dissolved in 570ml of 28w / v% ammonia water, with the total volume diluted to 1000ml using deionized water) [Measuring hardness] (1) Take 20 ml of water to be used as a 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 is reddish-purple after adding the indicator. (4) While shaking the conical beaker well, add the 0.01 mol / l EDTA·2Na solution dropwise from the burette, and the titration endpoint is reached 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:0.01mol / l Titration amount of EDTA・2Na solution (mL) A: Sample volume (20 mL, volume of water used as the sample) 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 cleaning solution containing a solvent such as water in the aforementioned cleaning agent 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 cleaning 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, the temperature of the cleaning solution is preferably 0°C or higher, more preferably 5°C or higher, from the viewpoint of improving cleaning performance, and preferably 40°C or lower, more preferably 30°C or lower, from the viewpoint of reducing environmental impact.

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

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

[0094] Examples of 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, including 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). (A) Components: Internal olefin sulfonate with 8 to 24 carbon atoms or its salt (B) Component: Amine oxide compound represented by the following general formula (1) [ka] [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. The aforementioned additive for detergent compositions can be added to other detergent compositions (detergents), and the combined use of these additives with other detergent compositions may enhance the cleaning effect, making them useful. Furthermore, 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. [Examples]

[0097] The present invention will be described in detail below based on examples.

[0098] <Composition ingredients> The following components were used in the examples, comparative examples, and formulation examples. The formulation examples show specific formulations that fall within the scope of the present invention.

[0099] (A) Components: Internal olefin sulfonate or its salt 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

[0100] (B) Component: Amine oxide B-1: Lauryldimethylamine oxide B-2: Myristyldimethylamine oxide

[0101] (C-1) Component: Anionic surfactant other than component (A) and component (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: Alpha-olefin sulfonates with 10 to 16 carbon atoms.

[0102] (C-2) Component: Polyoxyalkylene alkyl ether with HLB 9 to 18 C-2-1: A 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: A 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: A 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: A 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

[0103] (D) Ingredients: Fatty acids or their salts D-1: Coconut fatty acid, Product name: Lunac L-55, Manufactured by Kao Corporation

[0104] (E) Ingredients: Sodium hydroxide E-1: 50% sodium hydroxide solution (for precision analysis), manufactured by Fujifilm Wako Pure Chemical Industries, Ltd.

[0105] (F) Ingredients: Citric acid F-1: Citric acid (crystalline form), food additive, manufactured by Fujifilm Wako Pure Chemical Industries, Ltd.

[0106] (G) Ingredients: Water (ion-exchanged water)

[0107] Other ingredients: Fragrances, enzymes, and other ingredients commonly used in cleaning agents.

[0108] [(A) Synthesis of component] 7000g (28.9 mol) of 1-hexadecanol (product name: Calcol 6098, manufactured by Kao Corporation) and 700g (10% by mass relative to the starting alcohol) of γ-alumina (STREMChemicals, Inc.) as a solid acid catalyst were charged into a flask equipped with a stirring device. Under stirring, nitrogen (7000 mL / min.) was circulated 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. Sulfur trioxide gas and cooling water at 20°C were passed through the reactor's external jacket to obtain a sulfonated product. The molar ratio of SO3 to internal olefin during the sulfonation reaction 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 C16 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 number of double bond positions was 4.2. Furthermore, components (A-2) to (A-4) can be prepared in the same manner as component (A-1).

[0109] [Preparation of hard water used in the preparation of cleaning 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.

[0110] [Preparation of detergent composition (cleaning solution)] Based on the formulations shown in Tables 1 to 5, the detergent compositions for the examples and comparative examples were specifically prepared as follows. First, a stirrer piece was placed in a 100 mL glass beaker. Then, component (A), and optionally component (C), was added and stirred. After stirring, component (E), an alkaline pH adjuster, was added to adjust the solution to alkaline. Then, component (B), and optionally component (D), was added and stirred thoroughly. At this time, the temperature of the contents (aqueous solution) was in the range of 15-30°C. The stirring speed during this preparation was 500 r / min, and the stirring time was 60 minutes. Furthermore, the pH was adjusted to 7.8 by adjusting the amounts of components (E) and (F), which are pH adjusters, and component (G), which is used for concentration adjustment, as appropriate.

[0111] 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.

[0112] [Textile products for evaluation] Each sheet of polyester:cotton cloth (CFT Co., Ltd., product name: PCN-01) was coated with 200 μL of beef tallow (Sigma-Aldrich Co., Ltd., product name: Beef tallow, CP). The beef tallow used was colored by dissolving Sudan III (dark reddish-brown powder, manufactured by Fujifilm Wako Pure Chemical Industries, Ltd.) to a concentration of 0.1% by mass. After application, the cloth was left to stand at 50°C for 1.5 hours, and then left to stand overnight at 20°C to prepare a soiled cloth.

[0113] [Washing test] The cleaning operation was performed using a Turgotometer (manufactured by Ueshima Seisakusho). The total amount of the main cleaning components used in the obtained cleaning agent composition (the main cleaning 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 for comparative examples; hardness 4°dH was used for Example 34; hardness 16°dH was used for Example 36) to obtain a cleaning solution. In the comparative examples, the main components were not included, and in these cases, the solution was prepared to have a concentration of 200 ppm based on the total amount of only the main components used. Furthermore, the temperature of the cleaning solution was adjusted to 15°C (low temperature). 0.6 L of the cleaning solution and four of the evaluation textile products were placed in a 1 L stainless steel beaker for the cleaning test. The evaluation fibers were washed using a turgotometer at 85 rpm for 15 minutes. After washing, it was rinsed thoroughly with tap water and then spun dry.

[0114] [Method for evaluating cleaning efficiency] The cleaning rate of the evaluated textile products obtained in the aforementioned cleaning test was measured using the following method, and the average value of the four products was calculated. The color difference of the raw fabric before contamination and before and after washing was measured using a color difference system (Konica Minolta CR-400 / 410). The washing rate (%) was calculated using the following formula, and the washing performance at 15°C (low temperature) was evaluated. Furthermore, from the viewpoint of cleaning performance under low temperature (15°C) conditions, the cleaning rate is preferably 10% or more, more preferably 10.5% or more, and even more preferably 11% or more. Cleaning rate (%) = 100 × [(Reflectance after cleaning - Reflectance before cleaning) / (Reflectance of the original fabric - Reflectance before cleaning)]

[0115] [Foaming test] 30 mL of washing solution, adjusted to 15°C (low temperature), was placed in a No. 8 screw-cap tube (manufactured by Maruemu Co., Ltd.), fixed to a shaker (TAITEC BR-43FL), 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). Furthermore, regarding the foam height from the water surface, from the viewpoint of foam suppression under low temperature (15°C) conditions, it is preferable that it be 5.5 cm or less, more preferably 5 cm or less, and even more preferably 4.5 cm or less.

[0116] [Table 1]

[0117] [Table 2]

[0118] [Table 3]

[0119] [Table 4]

[0120] [Table 5]

[0121] [Table 6]

[0122] Based on the evaluation results above, it was confirmed that in all examples, using a detergent composition containing desired components with low environmental impact simultaneously satisfies both cleaning performance and foam suppression under low-temperature conditions. Furthermore, in Examples 34-36, it was confirmed that cleaning solutions using hard water prepared to hardness levels of 4°dH, 8°dH, and 16°dH simultaneously satisfied both cleaning performance and foam suppression properties. On the other hand, in the comparative example, since a detergent composition was used that did not contain either component (A) or component (B), or both, it was confirmed that a product that could simultaneously satisfy both cleaning performance and foam suppression under low-temperature conditions could not be obtained. Furthermore, the formulation examples listed in Table 6 above are expected to exhibit the same effects as those in the above-mentioned examples.

Claims

1. A detergent composition containing component (A) and component (B). (A) Components: Internal olefin sulfonate with 8 to 24 carbon atoms or its salt (B) Component: Amine oxide compound represented by the following general formula (1) 【Chemistry 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). (C) Component: One or more selected from (C-1) component and (C-2) component. (C-1) Component: Anionic surfactant excluding components (A) and (D). (C-2) Component: Polyoxyalkylene alkyl ether with an HLB value of 9 to 18 (D) Ingredients: Fatty acids or their salts

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 the component (D) described above.

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). (A) Components: Internal olefin sulfonate with 8 to 24 carbon atoms or its salt (B) Component: Amine oxide compound represented by the following general formula (1) 【Chemistry 2】 [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. A washing method according to claim 12, for use with 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 detergent compositions, containing component (A) and component (B). (A) Components: Internal olefin sulfonate with 8 to 24 carbon atoms or its salt (B) Component: Amine oxide compound represented by the following general formula (1) 【Transformation 3】 [Wherein, R １ is a linear or branched alkyl group or 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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