Classifications

• • C—CHEMISTRY; METALLURGY
  • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
  • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
  • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
  • C11D3/16—Organic compounds
  • C11D3/38—Products with no well-defined composition, e.g. natural products
  • C11D3/386—Preparations containing enzymes, e.g. protease or amylase
• • C—CHEMISTRY; METALLURGY
  • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
  • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
  • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
  • C11D1/02—Anionic compounds
  • C11D1/12—Sulfonic acids or sulfuric acid esters; Salts thereof
  • C11D1/28—Sulfonation products derived from fatty acids or their derivatives, e.g. esters, amides
• • C—CHEMISTRY; METALLURGY
  • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
  • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
  • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
  • C11D1/88—Ampholytes; Electroneutral compounds
  • C11D1/92—Sulfobetaines ; Sulfitobetaines
• • C—CHEMISTRY; METALLURGY
  • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
  • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
  • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
  • C11D1/88—Ampholytes; Electroneutral compounds
  • C11D1/94—Mixtures with anionic, cationic or non-ionic compounds
• • C—CHEMISTRY; METALLURGY
  • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
  • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
  • C11D17/00—Detergent materials or soaps characterised by their shape or physical properties
  • C11D17/0008—Detergent materials or soaps characterised by their shape or physical properties aqueous liquid non soap compositions
• • C—CHEMISTRY; METALLURGY
  • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
  • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
  • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
  • C11D3/16—Organic compounds
  • C11D3/38—Products with no well-defined composition, e.g. natural products
  • C11D3/386—Preparations containing enzymes, e.g. protease or amylase
  • C11D3/38618—Protease or amylase in liquid compositions only
• • C—CHEMISTRY; METALLURGY
  • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
  • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
  • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
  • C11D3/16—Organic compounds
  • C11D3/38—Products with no well-defined composition, e.g. natural products
  • C11D3/386—Preparations containing enzymes, e.g. protease or amylase
  • C11D3/38627—Preparations containing enzymes, e.g. protease or amylase containing lipase
• • C—CHEMISTRY; METALLURGY
  • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
  • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
  • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
  • C11D3/16—Organic compounds
  • C11D3/38—Products with no well-defined composition, e.g. natural products
  • C11D3/386—Preparations containing enzymes, e.g. protease or amylase
  • C11D3/38663—Stabilised liquid enzyme compositions
• • C—CHEMISTRY; METALLURGY
  • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
  • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
  • C11D2111/00—Cleaning compositions characterised by the objects to be cleaned; Cleaning compositions characterised by non-standard cleaning or washing processes
  • C11D2111/10—Objects to be cleaned
  • C11D2111/14—Hard surfaces

Definitions

• the present invention relates to a method for cleaning an object surface.
• cleaning agent compositions containing surfactants As a cleaning agent composition containing surfactants, a so-called concentrated-type cleaning agent composition having a higher surfactant concentration than conventional cleaning agent compositions is known. It is considered that cleaning agent compositions of the concentrated type can be reduced in size of their own to enable reduction of container resin amounts, reduction of transportation costs, reduction of waste after use or the like, and are very useful for reducing environmental burdens.
• tap water is generally used as water used for cleaning hard articles and clothing or the like.
• cleaning power is affected by the hardness of water used.
• Tap water within Japan often has a hardness of 1 to 5°dH (by German hardness).
• tap water has a high hardness of 8 to 20°dH, and such water is used for cleaning hard articles and clothing or the like. Accordingly, exhibiting excellent cleaning performance without being affected by the hardness of water used for cleaning is required.
• JP-A 2020-152757 discloses a liquid cleaning agent composition for tableware attaining more excellent cleaning power, foamability and dewatering performance, the composition containing component (A): a specific dialkyl sulfosuccinic acid ester or a salt thereof, component (B): at least one selected from a semipolar surfactant and an amphoteric surfactant, component (C): a cationized cellulose, and component (D): anionic surfactants excluding component (A), wherein a mass ratio represented by component (A)/component (B) is 0.05 to 0.5, and a mass ratio represented by component (D)/component (B) is 0.5 to 1.5.
• component (A) a specific dialkyl sulfosuccinic acid ester or a salt thereof
• component (B) at least one selected from a semipolar surfactant and an amphoteric surfactant
• component (C) a cationized cellulose
• JP-A 2019-182911 discloses a liquid cleaning agent composition for tableware and/or hard articles around the kitchen attaining excellent cleaning power for solid fat-containing contamination adhering to tableware or the like, the cleaning power being excellent after storage, and attaining excellent enzyme stability and composition stability after storage, the composition containing (a) an alkyl sulfosuccinic acid ester having an alkyl group with 5 or more and 18 or less carbons or a salt thereof [hereinafter referred to as component (a)] in an amount of 0.01 mass% or more and 5.0 mass% or less, (b) one or more surfactants selected from a semipolar surfactant and an amphoteric surfactant [hereinafter referred to as component (b)] in an amount of 0.01 mass% or more and 5.0 mass% or less, (c) an enzyme [hereinafter referred to as component (c)] and water, wherein a mass ratio of component (a)/component (b) is 0.01 or more and 100 or less.
• JP-A 2021-17508 discloses a method for cleaning a hard article including, bringing an undiluted liquid cleaning agent composition into contact with the hard article to which liquid oil-containing contamination adheres, leaving it as it is without external force being applied, and thereafter rinsing it with water, the liquid cleaning agent composition containing (a) a surfactant [hereinafter referred to as component (a)] in an amount of 0.1 mass% or more and 15 mass% or less, (b) an enzyme [hereinafter referred to as component (b)] in an amount of 1 ppm or more and 1000 ppm or less in terms of enzyme protein, and at least one of (c) an inorganic salt [hereinafter referred to as component (c)] and (d) a carboxylic acid salt [hereinafter referred to as component (d)], wherein a mass ratio of a content of component (a) to a content of components (c) and (d), (a)/[(c) + (d)], is 0.1 or more and 10 or
• JP-A 2019-182911 reports that cleaning power for solid fat-containing contamination adhering to tableware or the like is exhibited due to the effect of the enzyme combined with the formulation where the alkyl sulfosuccinic acid ester and the amphoteric or semipolar surfactant are combined at the low concentrations.
• the effect of the enzyme is reduced as the surfactants become more likely to act on the enzyme, but the patent literature does not disclose at all the effect of the enzyme in the formulation where the surfactants are combined at high concentrations.
• cleaning an object surface of a hard article or the like requires high cleaning power to be exhibited for solid fat-containing contamination adhering to the object surface of tableware or the like without being affected by the hardness of water used for cleaning.
• the present invention provides a method for cleaning an object surface, the method having enzyme activity even if using high concentrations of surfactants and an enzyme together, and exhibiting excellent cleaning performance for solid fat-containing contamination adhering to the object surface of tableware or the like without being affected by the hardness of water used for cleaning (for example, 0 to 20°dH (by German hardness)).
• the present invention relates to a method for cleaning an object surface including, bringing a cleaning liquid obtained by diluting a liquid cleaning agent composition into contact with the object surface, the liquid cleaning agent composition containing the following component (a), component (b) and component (e) and water,
• the present invention relates to a liquid cleaning agent composition containing the above component (a), component (b) and component (e) and water.
• the present invention provides a method for cleaning an object surface, the method having enzyme activity even if using high concentrations of surfactants and an enzyme together, and exhibiting excellent cleaning performance for solid fat-containing contamination adhering to the object surface of tableware or the like without being affected by the hardness of water used for cleaning (for example, 0 to 20°dH (by German hardness)).
• liquid cleaning agent composition and the method for cleaning an object surface of the present invention have enzyme activity even if using high concentrations of surfactants and an enzyme together, and exhibit excellent cleaning performance for solid fat-containing contamination adhering to the object surface of tableware or the like without being affected by the hardness of water used for cleaning (for example, 0 to 20°dH (by German hardness)) is not wholly certain, but is inferred as follows.
• Surfactants generally act on enzymes through electrostatic or hydrophobic interactions, and thus, an enzyme loses its activity in a liquid cleaning agent composition containing a high concentration of surfactants. Further, hardness components contained in water used for diluting the liquid cleaning agent composition bring about changes in packing performance between the surfactants, thereby significantly changing cleaning performance of the liquid cleaning agent composition.
• liquid cleaning agent composition of the present invention electrostatic interactions between various types of surfactants contained in the composition are strong, and the interactions between the various types of surfactants cause screening of electric charge, and thus, the action of the various types of surfactants on enzymes is small, and strong packing performance due to the electrostatic interactions between the various types of surfactants reduce susceptibility to hardness components, thus attaining the effects of the present invention.
• the present invention relates to a method for cleaning an object surface including, bringing a cleaning liquid obtained by diluting a liquid cleaning agent composition with water into contact with the object surface, the liquid cleaning agent composition containing the above component (a), component (b) and component (e) and water (hereinafter referred to as the liquid cleaning agent composition of the present invention).
• liquid cleaning agent composition of the present invention is explained.
• Component (a) of the present invention is an alkyl sulfosuccinic acid ester having an alkyl group with 5 or more and 18 or less carbons or a salt thereof.
• ester of component (a) examples include a monoester and a diester.
• alkyl group of component (a) include a group selected from a hexyl group, an octyl group, a nonyl group, a decyl group, a dodecyl group, a tridecyl group, a 2-ethylhexyl group, an n-octyl group, a sec-octyl group, an isopentyl group, an isononyl group, an isodecyl group, a cyclohexyl group, a 1-butylhexyl group, a 3,5,5-trimethylhexyl group, a 1-butylpentyl group, a 1-(2-methylpropyl)-3-methylbutyl group, a 2-propylpentyl group and a 2-propylheptyl group, and a group selected from a 2-ethylhexyl group and a 2-propylheptyl group is preferable from
• the liquid cleaning agent composition of the present invention may contain two selected from (a-1) an alkyl sulfosuccinic acid ester having an alkyl group with 5 or more and 8 or less carbons or a salt thereof (hereinafter referred to as component (a-1)) and (a-2) an alkyl sulfosuccinic acid ester having an alkyl group with 9 or more and 18 or less carbons or a salt thereof (hereinafter referred to as component (a-2)) as component (a) from the viewpoint of cleaning performance.
• component (a-1)) an alkyl sulfosuccinic acid ester having an alkyl group with 5 or more and 8 or less carbons or a salt thereof
• component (a-2) an alkyl sulfosuccinic acid ester having an alkyl group with 9 or more and 18 or less carbons or a salt thereof
• Component (a) is preferably a branched alkyl sulfosuccinic acid ester having a branched alkyl group with 8 or more and 12 or less carbons or a salt thereof (hereinafter referred to as component (a1)) from the viewpoint of cleaning performance.
• the branched alkyl group of component (a1) is preferably a branched alkyl group with 9 or more and 12 or less carbons, more preferably a branched alkyl group with 9 or 10 carbons and further preferably a branched alkyl group having a main chain with 6 or 7 carbons and one or more side chains, the side chains having 3 carbons in total.
• the branched alkyl group of component (a1) is preferably a branched alkyl group selected from a 2- propylheptyl group and a 2-ethylhexyl group and further preferably a 2-propylheptyl group.
• component (a1) examples include a branched sulfosuccinic acid ester represented by the following general formula (a1): wherein R 1a and R 2a each independently represent a branched alkyl group with 8 or more and 12 or less carbons, A 1 and A 2 each independently represent an alkylene group with 2 or more and 4 or less carbons, x and y each independently represent an average number of added moles which is 0 or more and 6 or less, and M 1 represents a hydrogen atom or a cation.
• R 1a and R 2a each independently represent a branched alkyl group with 8 or more and 12 or less carbons
• a 1 and A 2 each independently represent an alkylene group with 2 or more and 4 or less carbons
• x and y each independently represent an average number of added moles which is 0 or more and 6 or less
• M 1 represents a hydrogen atom or a cation.
• component (a1) further include a branched alkyl sulfosuccinic acid ester represented by the following general formula (a1-a).
• R 1a and R 2a may have the same number or different numbers of carbons.
• a hydrocarbon residue derived by the removal of a hydroxyl group from a secondary alcohol is included as an open-chain branched hydrocarbon group.
• a hydrocarbon chain whose carbon number counted from the carbon atom bonded to the oxygen atom is the largest is considered to be a main chain, and a hydrocarbon chain branching off from and bonded to the main chain is considered to be a side chain.
• the main chain is determined in the following order:
• the side chains of the branched alkyl groups of R 1a and R 2a may have the same number or different numbers of constituent carbons in total, and each preferably have 3 constituent carbons in total from the viewpoints of cleaning performance and formulation stability.
• the total number of carbons constituting side chains is the total of the carbon numbers of all side chains other than the main chain in one branched alkyl group, and when there are multiple side chains, it is the total of the carbon numbers of all those side chains.
• R 1a and R 2a may have the same number or different numbers of side chains, and each have 1 or more, and preferably 3 or less and more preferably 2 or less side chains from the viewpoints of cleaning performance and formulation stability.
• the number of side chains is the number of side chains branching off from the main chain, and even if a side chain further has a side chain branching off from the side chain, the number of side chains remains the same.
• a side chain may further have a side chain branching off from the side chain from the viewpoints of cleaning performance and formulation stability.
• R 1a and R 2a may have the same number or different numbers of branch carbons, and each have 1 or more, and preferably 3 or less and furthermore preferably 2 or less branch carbons from the viewpoints of cleaning performance and formulation stability.
• the number of branch carbons is the total of the numbers of tertiary carbon atoms and quaternary carbon atoms in an open-chain branched hydrocarbon group.
• the open-chain branched hydrocarbon groups of R 1a and R 2a each independently have 8 or more and 12 or less, further 9 or more and 12 or less and further 9 or 10 carbons in total, each independently have a main chain with 6 or 7 carbons, each independently have a side chain with 1 or more and 3 or less constituent carbons, and each independently have one side chain.
• R 1a and R 2a may represent the same or different specific branched alkyl groups, and each represent preferably a branched alkyl group selected from a 2-propylheptyl group and a 2-ethylhexyl group and more preferably a 2-propylheptyl group.
• a 1 and A 2 each independently represent an alkylene group with 2 or more, and 4 or less and preferably 3 or less carbons.
• x and y each independently represent an average number of added moles, which is 0 or more, and 6 or less, preferably 4 or less, more preferably 2 or less and further preferably 0 from the viewpoints of cleaning performance and formulation stability.
• x + y is preferably 0 or more, and preferably 12 or less, more preferably 6 or less, further preferably 3 or less and furthermore preferably 0 from the viewpoints of cleaning performance and formulation stability.
• M 1 is a hydrogen ion, or an inorganic cation such as a sodium ion, an ammonium ion, a potassium ion, a magnesium ion or the like, an organic cation such as a monoethanolammonium ion, a diethanolammonium ion, a triethanolammonium ion, a morpholinium ion or the like, and preferably an inorganic cation selected from a sodium ion, an ammonium ion, a potassium ion and a magnesium ion.
• a method for preparing a compound of the general formula (a1) in which R 1a and R 2a are the same is not particularly limited, and for example, a method described in US-B 2,028,091 can be referred to for the production thereof, and as a method for preparing an asymmetric compound in which R 1a and R 2a are different, for example, JP-A S58-24555 can be referred to for the production thereof.
• a raw material of component (a1) a compound obtained by adding an alkylene oxide to an alcohol with a predetermined number of carbons can also be used.
• Examples of a suitable alcohol used for producing component (a1) of the present invention include
• the liquid cleaning agent composition of the present invention may contain two selected from (a1-1) a branched alkyl sulfosuccinic acid ester having a branched alkyl group with 8 carbons or a salt thereof (hereinafter referred to as component (a1-1)) and (a1-2) a branched alkyl sulfosuccinic acid ester having a branched alkyl group with 9 or more and 12 or less carbons or a salt thereof (hereinafter referred to as component (a1-2)) as component (a1) from the viewpoint of cleaning performance.
• component (a1) a branched alkyl sulfosuccinic acid ester having a branched alkyl group with 8 carbons or a salt thereof
• component (a1-2) a branched alkyl sulfosuccinic acid ester having a branched alkyl group with 9 or more and 12 or less carbons or a salt thereof
• Component (b) of the present invention is a sulfobetaine.
• the sulfobetaine examples include an N-alkyl-N,N-dimethyl-N-sulfopropyl ammonium sulfobetaine having an alkyl group with preferably 10 or more and preferably 18 or less and more preferably 14 or less carbons, an N-alkyl-N,N-dimethyl-N-(2-hydroxysulfopropyl) ammonium sulfobetaine having an alkyl group with preferably 10 or more and preferably 18 or less and more preferably 14 or less carbons, an N-alkanoyl aminopropyl-N,N-dimethyl-N-sulfopropyl ammonium sulfobetaine having an alkanoyl group with preferably 10 or more and preferably 18 or less and more preferably 14 or less carbons and an N-alkanoyl aminopropyl-N,N-dimethyl-N-(2-hydroxysulfopropyl) ammonium sulfobetaine having an
• the liquid cleaning agent composition of the present invention can optionally contain the following component (c), component (c): an anionic surfactant other than component (a).
• anionic surfactant of component (c) examples include one or more selected from an alkylbenzene sulfonate, an alkyl or alkenyl ether sulfate, an alkyl or alkenyl sulfate, an alkane sulfonate, a saturated or unsaturated fatty acid salt, an alkyl or alkenyl ether carboxylate, an ⁇ -sulfo fatty acid salt, an N-acyl amino acid and a phosphate mono or diester (hereinafter referred to as component (c-1)).
• the alkyl or alkenyl ether sulfate include a polyoxyethylene alkyl or alkenyl ether sulfate.
• Component (c-1) has an alkyl group or an alkenyl group with, for example, 8 or more and 22 or less carbons.
• An average number of added moles of an oxyethylene group of component (c-1) is, for example, 0 or more and 10 or less.
• Examples of a counterion of an anionic group of component (c-1) include alkali metal ions such as a sodium ion, a potassium ion and others, alkaline earth metal ions such as a calcium ion, a magnesium ion and others, an ammonium ion, and alkanol amines having 1 to 3 alkanol groups with 2 or 3 carbons (for example, monoethanolamine, diethanolamine, triethanolamine, triisopropanolamine and others).
• One or a combination of two or more of these surfactants can be used.
• Component (c-1) is preferably an alkyl or alkenyl ether sulfate from the viewpoints of cleaning performance and formulation stability.
• the alkyl or alkenyl ether sulfate is preferably a polyoxyalkylene alkyl or alkenyl ether sulfate.
• the polyoxyalkylene alkyl or alkenyl ether sulfate has an alkyl group or an alkenyl group with 8 or more and preferably 10 or more, and 18 or less and preferably 14 or less carbons.
• the polyoxyalkylene alkyl or alkenyl ether sulfate has an oxyalkylene group with preferably 2 or 3 and more preferably 2 carbons, and an average number of added moles of the oxyalkylene group is 0.5 or more and more preferably 1.0 or more, and 4.0 or less and preferably 3.0 or less.
• Component (c) is preferably an internal olefin sulfonate (hereinafter referred to as component (c-2)) from the viewpoints of cleaning performance and formulation stability.
• the internal olefin sulfonate in component (c-2) has preferably 8 or more, more preferably 12 or more and further preferably 16 or more, and preferably 24 or less, more preferably 22 or less, further preferably 20 or less, furthermore preferably 18 or less and furthermore preferably 16 carbons from the viewpoints of cleaning performance and formulation stability.
• the carbon number of the internal olefin sulfonate in component (c-2) represents the carbon number of an internal olefin to which a sulfonate is covalently bonded.
• the internal olefin sulfonate of component (c-2) is a sulfonate obtained by sulfonating, neutralizing and hydrolyzing a raw material internal olefin (an olefin having a double bond inside the olefin chain) with preferably 8 or more, more preferably 12 or more and further preferably 16 or more, and preferably 24 or less, more preferably 22 or less, further preferably 20 or less, furthermore preferably 18 or less and furthermore preferably 16 carbons.
• the internal olefin also contains a minute amount of a so-called alfa-olefin (hereinafter also referred to as an ⁇ -olefin), which has a double bond at position 1 of the carbon chain.
• a ⁇ -sultone is quantitatively produced through the sulfonation of the internal olefin, part of the ⁇ -sultone is changed into a ⁇ -sultone and an olefin sulfonic acid, and these are further converted into a hydroxy alkane sulfonate and an olefin sulfonate in the neutralizing and hydrolyzing processes (for example, J. Am. Oil Chem. Soc. 69, 39 (1992 )).
• a hydroxy alkane sulfonate and an olefin sulfonate to be obtained respectively have a hydroxy group inside the alkane chain and a double bond inside the olefin chain.
• a product to be obtained is mainly a mixture of these, and may sometimes also partially contain a minute amount of a hydroxy alkane sulfonate having a hydroxy group at the end of the carbon chain or an olefin sulfonate having a double bond at the end of the carbon chain.
• each of these products and a mixture of them are collectively referred to as the internal olefin sulfonate (component (c-2)).
• the hydroxy alkane sulfonates are referred to as hydroxy species of the internal olefin sulfonate (hereinafter also referred to as HAS species), and the olefin sulfonates are referred to as olefin species of the internal olefin sulfonate (hereinafter also referred to as IOS species).
• a mass ratio between the compounds of HAS species and IOS species in component (c-2) can be measured by a high-speed liquid chromatography mass spectrometer (hereinafter abbreviated as HPLC-MS). Specifically, the mass ratio can be determined from the HPLC-MS peak areas of component (c-2).
• HPLC-MS high-speed liquid chromatography mass spectrometer
• Examples of a salt of the internal olefin sulfonate 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 alkanol ammonium salts with 2 or more and 6 or less carbons containing alkanol amines.
• the internal olefin sulfonate of component (c-2) has a sulfonic acid group inside the carbon chain of the internal olefin sulfonate, which is, namely, an olefin chain or an alkane chain, and may sometimes also partially contain a minute amount of a sulfonate having a sulfonic acid group at the end of the carbon chain.
• a content of an internal olefin sulfonate having a sulfonic acid group at position 5 or more and preferably position 5 or more and position 9 or less in component (c-2) is preferably 5 mass% or more, more preferably 10 mass% or more, further preferably 15 mass% or more and furthermore preferably 20 mass% or more, and preferably 60 mass% or less, more preferably 55 mass% or less and further preferably 45 mass% or less from the viewpoint of formulation stability.
• the contents of the compounds having a sulfonic acid group at different positions in component (c-2) can be measured by HPLC-MS.
• the contents of the compounds having a sulfonic acid group at different positions in the present specification are determined as mass ratios based on the HPLC-MS peak areas of the compounds having a sulfonic acid group at their respective positions in the total of HAS species of component (c-2).
• the positions of a sulfonic acid group in these compounds are positions in the olefin chains or the alkane chains.
• the internal olefin sulfonate can be a mixture of hydroxy species and olefin species.
• a mass ratio of a content of olefin species of the internal olefin sulfonate to a content of hydroxy species of the internal olefin sulfonate in component (c-2) (olefin species/hydroxy species) can be 0/100 or more and further 5/95 or more, and 50/50 or less, further 40/60 or less, further 30/70 or less and further 25/75 or less.
• component (d) examples include one or more selected from (d1) a nonionic surfactant (hereinafter referred to as component (d1)) and (d2) a cationic surfactant (hereinafter referred to as component (d2)).
• nonionic surfactant of component (d1) can include an alkyl monoglyceryl ether, a polyoxyalkylene monoalkyl or alkenyl ether, an alkyl (poly)glycoside (a glycoside-type nonionic surfactant), a sorbitan-based nonionic surfactant, an aliphatic alkanol amide, a fatty acid monoglyceride, a sucrose fatty acid ester and an amidated product of an alkanol amine such as monoethanolamine, diethanolamine, methyl monoethanolamine or the like with a fatty acid such as lauric acid, myristic acid or the like.
• an alkanol amine such as monoethanolamine, diethanolamine, methyl monoethanolamine or the like
• a fatty acid such as lauric acid, myristic acid or the like.
• the nonionic surfactant has an alkyl group or an alkenyl group with, for example, 6 or more and 18 or less carbons.
• An average number of added moles of an oxyalkylene group of the nonionic surfactant, for example, an oxyethylene group is, for example, 3 or more and 25 or less.
• One or a combination of two or more of these surfactants can be used.
• Component (d1) is preferably one or more selected from (d1-1) an alkyl (poly)glycoside (hereinafter referred to as component (d1-1)) and (d1-2) a polyoxyalkylene monoalkyl ether (hereinafter referred to as component (d1-2)) from the viewpoint of cleaning performance.
• the alkyl group of component (d1-1) is preferably a primary alkyl group and more preferably a linear primary alkyl group from the viewpoint of cleaning performance.
• the alkyl group has preferably 8 or more and more preferably 10 or more, and preferably 18 or less, more preferably 16 or less and further preferably 14 or less carbons from the viewpoint of cleaning performance.
• Component (d1-1) has preferably a linear primary alkyl group with 8 or more and 14 or less carbons and more preferably a linear primary alkyl group with 10 or 12 carbons from the viewpoint of cleaning performance.
• An average degree of polymerization of the glycoside of component (d1-1) is preferably 1.0 or more and more preferably 1.3 or more, and preferably 3.0 or less, more preferably 2.5 or less, further preferably 2.0 or less and furthermore preferably 1.7 or less from the viewpoint of cleaning performance.
• the alkyl group of component (d1-2) is preferably a primary alkyl group, more preferably a linear or branched primary alkyl group and further preferably a linear primary alkyl group from the viewpoint of cleaning performance.
• the alkyl group has preferably 8 or more and more preferably 12 or more, and preferably 18 or less, more preferably 14 or less and further preferably 12 carbons from the viewpoint of cleaning performance.
• the oxyalkylene group of component (d1-2) is preferably one or more selected from an oxyethylene group and an oxypropylene group and more preferably an oxyethylene group from the viewpoint of cleaning performance.
• An average number of added moles of the oxyalkylene group of component (d1-2) is preferably 3 or more, more preferably 6 or more and further preferably 8 or more, and preferably 25 or less, more preferably 18 or less and further preferably 10 or less from the viewpoint of cleaning performance.
• Examples of the cationic surfactant of component (d2) include an alkyl trimethyl ammonium salt having an alkyl group with 8 or more and 22 or less carbons, a dialkyl dimethyl ammonium salt having an alkyl group with 8 or more and 22 or less carbons, an alkyl dimethyl benzyl ammonium salt having an alkyl group with 8 or more and 22 or less carbons, a benzethonium salt and others.
• Examples of the salts include halogen salts and alkyl sulfates with 1 or more and 3 or less carbons.
• One or a combination of two or more of these surfactants can be used.
• Component (e) of the present invention is an enzyme.
• the lipases are preferably triacylglycerol lipase on E.C.3.1.1.3, cholesterol esterase on E.C.3.1.1.13, monoacylglycerol lipase on E.C.3.1.23 and lipoprotein lipase on E.C.3.1.1.34.
• the origins of the lipases are not limited, and examples include lipases of animal origin, vegetable origin or microorganism origin. Examples of the lipases of microorganism origin include those derived from the genus Rhizopus, the genus Aspergillus, the genus Mucor, the genus Pseudomonas, the genus Geotrichum, the genus Penicillium, the genus Candida and others.
• Lipase A “AMANO” 6 Lipase AY “AMANO” 30SD, Lipase GS “AMANO” 250G, Lipase R “AMANO,” Lipase DF “AMANO” 15 and Lipase MER “AMANO” (which are all manufactured by Amano Enzyme Inc.), O lipase (NAGASE & CO., LTD.), Lipase MY, Lipase OF, Lipase PL, Lipase PLC, Lipase QLM, Lipase QLC and Phospholipase D (which are all manufactured by Meito Sangyo Co., Ltd.), Lipoprotein lipase (manufactured by Oriental Yeast Co., ltd.), Lipase (manufactured by Toyo Jozo Co.
• amylases those obtained from many organisms, for example, bacteria such as Bacillus subtilis Marburg, Bacillus subtilis natto, Bacillus amyloliquefaciens, Bacillus licheniformis, Bacillus cereus, Bacillus macerans, Pseudomonas stutzeri, Klebsiella aerogenes and others, actinomycetes such as Streptomyces griseus and others, molds such as Aspergillus oryzae, Aspergillus niger and others, seeds of gramineous and leguminous plants, digestive glands of animals such as humans and pigs or the like, and others can be used.
• bacteria such as Bacillus subtilis Marburg, Bacillus subtilis natto, Bacillus amyloliquefaciens, Bacillus licheniformis, Bacillus cereus, Bacillus macerans, Pseudomonas stutzeri, Klebsiella aerogenes
• a host cell transformed with a recombinant vector having a DNA sequence that encodes any of the above microorganisms or variants thereof or enzymes thereof or variants thereof, or the like is inoculated to a medium containing assimilable carbon source and nitrogen source and essential nutrients other than these and cultivated in accordance with a usual method, and an amylase obtained therefrom in conformance with general enzyme collection and purification methods can be used in the present invention.
• An enzyme solution thus obtained can be used as-is, but can be used after further purified, crystallized, formulated into powder or formulated into liquid by a publicly-known method.
• a preferable amylase used in the present invention is ⁇ -amylase.
• amylases examples include Rapidase (manufactured by Gist-Brocades International B.V.), Termamyl, Duramyl, Stainzyme and Amplify (manufactured by Novozymes A/S), and Plaster ST ® and Plaster OxAm ® (manufactured by Genencor International, Inc.)
• the liquid cleaning agent composition of the present invention contains component (a) in an amount of preferably 1 mass% or more, more preferably 2 mass% or more and further preferably 5 mass% or more, and preferably 60 mass% or less, more preferably 40 mass% or less, further preferably 20 mass% or less, furthermore preferably 15 mass% or less and furthermore preferably 10 mass% or less in the liquid cleaning agent composition from the viewpoints of cleaning performance and formulation stability.
• the mass of component (a) in the liquid cleaning agent composition of the present invention is specified using a value expressed in terms of a sodium salt.
• a mass ratio of a content of component (a-1) to a content of component (a-2), (a-1)/(a-2), is preferably 1 or more and more preferably 2 or more, and preferably 10 or less, more preferably 8 or less, further preferably 6 or less and furthermore preferably 4 or less from the viewpoint of cleaning power.
• a mass ratio of a content of component (a1-1) to a content of component (a1-2), (a1-1)/(a1-2), is preferably 1 or more and more preferably 2 or more, and preferably 10 or less, more preferably 8 or less, further preferably 6 or less and furthermore preferably 4 or less from the viewpoint of cleaning power.
• the liquid cleaning agent composition of the present invention contains component (b) in an amount of preferably 0.1 mass% or more, more preferably 5 mass% or more and further preferably 10 mass% or more, and preferably 60 mass% or less, more preferably 40 mass% or less, further preferably 30 mass% or less, furthermore preferably 25 mass% or less, furthermore preferably 20 mass% or less and furthermore preferably 15 mass% or less in the liquid cleaning agent composition from the viewpoints of cleaning performance and enzyme activity.
• a mass ratio of a content of component (b) to a content of component (a) in the liquid cleaning agent composition of the present invention, (b)/(a), is preferably 0.01 or more, more preferably 0.5 or more, further preferably 1 or more and furthermore preferably 2 or more, and preferably 100 or less, more preferably 50 or less, further preferably 10 or less, furthermore preferably 5 or less and furthermore preferably 3 or less from the viewpoints of cleaning performance and enzyme activity.
• the liquid cleaning agent composition of the present invention contains component (c)
• the liquid cleaning agent composition contains component (c) in an amount of preferably 50 mass% or less, more preferably 40 mass% or less, further preferably 30 mass% or less, furthermore preferably 20 mass% or less, furthermore preferably 10 mass% or less and furthermore preferably 5 mass% or less from the viewpoints of cleaning performance and formulation stability.
• the liquid cleaning agent composition of the present invention may be free of component (c).
• the mass of component (c) in the liquid cleaning agent composition of the present invention is specified using a value expressed in terms of a sodium salt.
• a mass ratio of a content of component (c-1) to a content of component (a), (c-1)/(a), is preferably 0 or more and more preferably 0.5 or more, and preferably 5 or less, more preferably 3 or less, further preferably 2 or less, furthermore preferably 1.5 or less and furthermore preferably 1 or less from the viewpoints of enzyme activity and cleaning performance unsusceptible to the hardness of water.
• a mass ratio of a content of component (c-2) to a content of component (a), (c-2)/(a), is preferably 0 or more, more preferably 0.33 or more and further preferably 0.5 or more, and preferably 3 or less, more preferably 2 or less, further preferably 1.5 or less and furthermore preferably less than 1 from the viewpoints of enzyme activity and cleaning performance unsusceptible to the hardness of water.
• the liquid cleaning agent composition of the present invention contains component (d)
• the liquid cleaning agent composition contains component (d) in an amount of preferably 5 mass% or more, more preferably 6 mass% or more, further preferably 7 mass% or more and furthermore preferably 8 mass% or more, and preferably 50 mass% or less, more preferably 40 mass% or less, further preferably 35 mass% or less, furthermore preferably 30 mass% or less, furthermore preferably 25 mass% or less, furthermore preferably 20 mass% or less, furthermore preferably 15 mass% or less and furthermore preferably 10 mass% or less from the viewpoints of cleaning performance and formulation stability.
• component (d2) is specified using a value expressed in terms of a chlorine salt.
• a content of surfactants in the liquid cleaning agent composition of the present invention is preferably 17 mass% or more, more preferably 20 mass% or more, further preferably 22 mass% or more and furthermore preferably 25 mass% or more, and preferably 70 mass% or less, more preferably 60 mass% or less, further preferably 54 mass% or less, furthermore preferably 40 mass% or less and furthermore preferably 30 mass% or less from the viewpoint of cleaning performance.
• a total content of components (a), (b), (c) and (d) in the liquid cleaning agent composition of the present invention is preferably 17 mass% or more, more preferably 20 mass% or more, further preferably 22 mass% or more and furthermore preferably 25 mass% or more, and preferably 70 mass% or less, more preferably 60 mass% or less, further preferably 54 mass% or less, furthermore preferably 40 mass% or less and furthermore preferably 30 mass% or less from the viewpoint of cleaning performance.
• the total content of components (a), (b), (c) and (d) is the content of surfactants contained in the liquid cleaning agent composition of the present invention.
• the liquid cleaning agent composition of the present invention contains component (e) in an amount of preferably 0.01 mass% or more, more preferably 0.05 mass% or more and further preferably 0.1 mass% or more, and preferably 0.5 mass% or less, more preferably 0.4 mass% or less, further preferably 0.3 mass% or less and furthermore preferably 0.2 mass% or less in the liquid cleaning agent composition in terms of enzyme protein from the viewpoints of cleaning performance and costs.
• the mass of component (e) in the liquid cleaning agent composition of the present invention is specified by a calculated amount of enzyme protein.
• a mass ratio of a content of component (e) to a content of component (a) in the liquid cleaning agent composition of the present invention, (e)/(a), is preferably 0.001 or more, more preferably 0.005 or more, further preferably 0.01 or more and furthermore preferably 0.015 or more, and preferably 0.2 or less, more preferably 0.1 or less, further preferably 0.06 or less, furthermore preferably 0.05 or less and furthermore preferably 0.04 or less from the viewpoints of enzyme activity and cleaning performance.
• the liquid cleaning agent composition of the present invention can further contain a water-soluble organic solvent as component (f) from the viewpoints of uniformity and formulation stability.
• component (f) can include (f-1) a monohydric alcohol with 1 or more and 4 or less carbons, (f-2) a polyhydric alcohol with 2 or more and 4 or less carbons, (f-3) a di or trialkylene glycol having an alkylene glycol unit with 2 to 4 carbons and (f-4) a monoalkyl (methyl, ethyl, propyl or butyl), monophenyl or monobenzyl ether of a mono, di, tri or tetraalkylene glycol having an alkylene glycol unit with 2 to 4 carbons. One or more of these can be used.
• Component (f) is preferably a water-soluble organic solvent with 2 or more and preferably 3 or more, and 10 or less and preferably 8 or less carbons.
• the water-soluble organic solvent refers to a solvent with an octanol/water partition coefficient (LogPow) of 3.5 or less.
• examples of (f-1) include ethanol, isopropyl alcohol, t-butanol and 2-aminoethanol
• examples of (f-2) include 1,3-propanediol, ethylene glycol, propylene glycol, glycerin and isoprene glycol
• examples of (f-3) include diethylene glycol and dipropylene glycol
• examples of (f-4) include propylene glycol monomethyl ether, propylene glycol monoethyl ether, diethylene glycol monobutyl ether (also referred to as butyldiglycol or the like), dipropylene glycol butyl ether, phenoxy ethanol, phenoxy triethylene glycol and phenoxy isopropanol.
• examples of (f-1) include ethanol, isopropyl alcohol, t-butanol and 2-aminoethanol
• examples of (f-2) include 1,3-propanediol, ethylene glycol, propylene glycol, gly
• component (f) is preferably one or more water-soluble organic solvents selected from ethanol, propylene glycol, dipropylene glycol, diethylene glycol monobutyl ether, phenoxy ethanol and phenoxy isopropanol and more preferably one or more water-soluble organic solvents selected from ethanol and diethylene glycol monobutyl ether from the viewpoint of formulation uniformity of the composition.
• the liquid cleaning agent composition of the present invention contains component (f)
• the liquid cleaning agent composition contains component (f) in an amount of preferably 1 mass% or more, more preferably 5 mass% or more and further preferably 10 mass% or more, and preferably 30 mass% or less, more preferably 20 mass% or less and further preferably 15 mass% or less from the viewpoints of formulation uniformity of the composition and costs.
• the liquid cleaning agent composition of the present invention can further contain an inorganic salt as component (g) from the viewpoint of cleaning performance.
• inorganic salt of component (g) one or more selected from inorganic alkali metal salts, inorganic alkaline earth metal salts and salts of the elements of Groups 8 to 12 of Period 4 can be used.
• One or more selected from chlorides, sulfates, carbonates and sulfites are suitable as component (g).
• Salts of one or more selected from lithium, sodium and potassium of alkali metals, magnesium and calcium of alkaline earth metals, and iron, copper and zinc of the elements of Groups 8 to 12 of Period 4 can be used as component (g).
• Component (g) is more preferably one or more selected from sodium chloride, calcium chloride, magnesium chloride and potassium chloride.
• the liquid cleaning agent composition of the present invention contains component (g)
• the liquid cleaning agent composition contains component (g) in an amount of preferably 0.001 mass% or more, more preferably 0.004 mass% or more and further preferably 0.008 mass% or more, and preferably 0.2 mass% or less, more preferably 0.15 mass% or less and further preferably 0.1 mass% or less from the viewpoints of cleaning performance and formulation uniformity of the composition.
• the liquid cleaning agent composition of the present invention can contain components such as hydrotropic agents, anti-gelling agents such as polyalkylene glycols and others, thickeners such as polyacrylic acid and others, fragrances, dyes, pigments, bactericides, antiseptics, pH adjusters and others.
• the liquid cleaning agent composition of the present invention contains water.
• the balance other than the above components (a) to (e) and other optional components is water.
• the liquid cleaning agent composition of the present invention contains water in an amount of preferably 20 mass% or more, more preferably 30 mass% or more and further preferably 40 mass% or more, and preferably 60 mass% or less and more preferably 50 mass% or less in the liquid cleaning agent composition. Ion-exchanged water, sterile ion-exchanged water or the like is preferably used as the water.
• a pH of the liquid cleaning agent composition of the present invention at 25°C is preferably 6.0 or more, more preferably 6.5 or more and further preferably 7.0 or more, and preferably 10 or less, more preferably 8.0 or less and further preferably 7.5 or less from the viewpoint of enzyme stability.
• a viscosity of the liquid cleaning agent composition of the present invention at 20°C is preferably 2000 mPa ⁇ s or less and more preferably 1000 mPa ⁇ s or less.
• a lower limit of this viscosity can be preferably 10 mPa ⁇ s or more, more preferably 30 mPa ⁇ s or more and further preferably 50 mPa ⁇ s or more.
• the liquid cleaning agent composition of the present invention can be directed to uses for (1) food, for example, the surface of food materials such as vegetables and others, or the like, (2) hard articles, and (3) textile products, for example, fiber materials such as cloth, thread and others and products produced using these, or the like.
• liquid cleaning agent composition of the present invention can be suitably used for hard articles.
• hard articles examples include hard articles having hard surfaces such as, for example, bathrooms, toilets, kitchens, floors, door knobs, tableware, hard articles around the kitchen, food processing equipment, desks, chairs, walls and others. These hard articles may be those used in households or those used in public facilities or plants, for example, pools, bathhouses, restaurants, hospitals and others.
• the liquid cleaning agent composition of the present invention can be suitably used for, particularly, tableware and/or hard articles around the kitchen.
• the hard articles around the kitchen are articles used around the kitchen, specifically,
• Examples of materials of the tableware and/or hard articles around the kitchen to which the present invention is directed include plastic (including silicone resin and others), metal, ceramic, wood and a combination of those.
• the liquid cleaning agent composition of the present invention is diluted with water when used.
• a hardness of the water used for the liquid cleaning agent composition of the present invention is preferably 0°DH or more, more preferably 4°DH or more, further preferably 8°DH or more and furthermore preferably 10°DH or more, and preferably 20°DH or less, more preferably 16°DH or less and further preferably 11°DH or less by German hardness from the viewpoint of cleaning performance.
• the present invention provides a method for cleaning an object surface including, bringing a cleaning liquid into contact with the object surface, the cleaning liquid being obtained by diluting the liquid cleaning agent composition of the present invention with water by a factor of from 10 to 10000 (hereinafter referred to as the cleaning liquid of the present invention).
• a hardness of the water used for diluting the liquid cleaning agent composition of the present invention falls within the same range as described in the liquid cleaning agent composition of the present invention, and a method for measuring the hardness of water is also the same.
• the object surfaces to which the cleaning method of the present invention is directed are preferably hard surfaces of hard articles and more preferably hard surfaces of tableware and/or hard articles around the kitchen.
• the liquid cleaning agent composition of the present invention is diluted with water by a factor of 10 or more, preferably 30 or more, more preferably 50 or more and further preferably 100 or more from the viewpoint of cleaning performance, and 10000 or less, preferably 5000 or less, more preferably 1000 or less and further preferably 200 or less from the viewpoints of cleaning performance and reduction of environmental burdens relating to discharge of cleaning water to the environment.
• the liquid cleaning agent composition of the present invention is diluted with water by a factor of 50 or more, preferably 55 or more, more preferably 60 or more and further preferably 70 or more, and 10000 or less, preferably 8000 or less, more preferably 5500 or less and further preferably 5000 or less.
• the cleaning liquid obtained by diluting the liquid cleaning agent composition of the present invention with water is brought into contact with the object surface in foam form or liquid form.
• Examples of a method for bringing the cleaning liquid of the present invention into contact with the object surface include applying, spraying and immersing, and immersing is preferable.
• the cleaning liquid of the present invention may be applied directly to the object surface, or the cleaning liquid of the present invention may be applied to the object surface in liquid form by making the cleaning liquid adhere to a flexible material to be retained therein or in foam form by further rubbing the flexible material by hand several times.
• Examples of a method for spraying the cleaning liquid of the present invention on the object surface include a method of filling the cleaning liquid into a container provided with a sprayer and spraying it in liquid droplet form or foam form.
• Examples of the container provided with a sprayer include a manual spray device using no propellant such as a trigger-type spray container, a pump-type spray container or the like, an aerosol using a propellant, and others.
• the container provided with a sprayer is preferably a trigger-type spray capable of spraying the contents in liquid droplet form or foam form, and more preferably a trigger-type spray provided with a mechanism for spraying the contents in liquid droplet form or a trigger-type spray provided with a mechanism for forming foam (foam forming mechanism).
• the object surface may be left as it is or may be washed by rubbing with external force (physical force) applied thereto using a flexible material such as a sponge or the like or fingers and others.
• the immersion time is preferably 60 seconds or more, more preferably 3 minutes or more and further preferably 5 minutes or more, and preferably 60 minutes or less, more preferably 30 minutes or less and further preferably 10 minutes or less from the viewpoint of cleaning performance.
• the object surface is rinsed with water after brought into contact with the cleaning liquid of the present invention (or after left as it is or immersed therein if left as it is or immersed therein).
• the object surface may be rinsed with external force (physical force) applied thereto using a flexible material such as a sponge or the like or fingers and others or may be simply rinsed with water flow.
• the liquid cleaning agent compositions shown in Tables 1 to 5 were prepared using the formulation components below, and evaluations were conducted on the items described later.
• the liquid cleaning agent compositions in Tables 1 to 5 were prepared by a usual method. In other words, components (a) to (f) were added to an adequate amount of water and dissolved therein at room temperature (25°C), and then, sodium hydroxide and/or hydrochloric acid were added thereto to adjust a pH (25°C) to 7.0. Note that the mass percentages of the formulation components in Tables 1 to 5 are all numerical values based on effective amounts. The contents (mass%) of component (e) indicate those of enzyme protein.
• the enzyme protein of component (e) was quantified in accordance with a standard assay method using Protein Assay Kit II (catalog No. 500-0002) manufactured by Bio-Rad Laboratories, Inc. and using bovine serum albumin attached to the kit as a standard protein.
• a double bond distribution of the obtained internal olefin is shown here.
• a sulfonation reaction of the internal olefin obtained in the above production example of raw material with sulfur trioxide gas was carried out using a thin film-type sulfonation reactor having an outer jacket while cooling water at 20°C was allowed to pass through the reactor's outer jacket.
• the molar ratio SO 3 /internal olefin for the sulfonation reaction was set to 1.09.
• the obtained sulfonated product was added to an alkaline aqueous solution prepared with potassium hydroxide in an amount 1.5 molar times the theoretic acid value, and neutralized while stirred at 30°C for 1 hour.
• the neutralized product was hydrolyzed by heating in an autoclave at 160°C for 1 hour, thereby obtaining component (c-2), a potassium internal olefin sulfonate product.
• component (c-2) a potassium internal olefin sulfonate product.
• the content proportions (mass percentages) of internal olefin sulfonates in which a sulfonic acid group was bonded at position 1/position 2/position 3/position 4/positions 5 to 9 were equal to 1.69/17.51/15.65/20.28/44.97, respectively.
• the mass of a polypropylene test piece with 30 mm (width) ⁇ 80 mm (length) ⁇ 1 mm (thickness) was measured with a four-digit balance (x).
• An oil and fat component at beef tallow/rape-seed oil 9/1 (mass ratio) was dissolved in chloroform to obtain solid fat-containing model contamination.
• the solid fat-containing model contamination was uniformly applied to the polypropylene test piece so that the apply amount was 0.02 g, and chloroform was evaporated and dried to obtain a contaminated piece.
• the mass of the contaminated piece was measured with the four-digit balance (y).
• Calcium chloride manufactured by FUJIFILM Wako Pure Chemical Corporation
• magnesium chloride hexahydrate manufactured by FUJIFILM Wako Pure Chemical Corporation
• a dilution was prepared by diluting each liquid cleaning agent composition in Tables 1 and 2 with each hardness water by a factor of 100, and the contaminated piece was immersed such that the portion to which the model contamination was applied was all brought into contact with the dilution.
• the temperature of the dilution was 25°C.
• Cleaning rate A of the solid fat-containing model contamination by cleaning agent composition A shown in Tables 3 and 4 containing an enzyme and cleaning rate B of the solid fat-containing model contamination by cleaning agent composition B shown in Tables 3 and 4 which was cleaning agent composition A from which only the enzyme was excluded were determined by the method described in the above (2).
• ⁇ (cleaning rate A) - (cleaning rate B) ⁇ is shown as an enzymatic cleaning rate (%), and enzyme activity was calculated by the formula below. A larger enzyme activity value is preferable.
• Enzyme activity (%) ⁇ (cleaning rate A) - (cleaning rate B) ⁇ /(cleaning rate A) ⁇ 100
• the mass of a glass test piece with 26 mm (width) ⁇ 76 mm (length) ⁇ 1 mm (thickness) was measured with the four-digit balance (x').
• Rice porridge manufactured by Hakubaku Co., Ltd. was used as starch model contamination.
• the starch model contamination was uniformly applied to the glass test piece so that the apply amount was 0.01 g, and water was evaporated and dried to obtain a contaminated piece.
• the contaminated piece was measured with the four-digit balance (y').
• Calcium chloride manufactured by FUJIFILM Wako Pure Chemical Corporation
• magnesium chloride hexahydrate manufactured by FUJIFILM Wako Pure Chemical Corporation
• a dilution was prepared by diluting each liquid cleaning agent composition in Table 5 with each hardness water by a factor of 100, and the contaminated piece was immersed such that the portion to which the model contamination was applied was all brought into contact with the dilution.
• the temperature of the dilution was 25°C.

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• 2023
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