WO2023054728A1 - 洗濯方法 - Google Patents
洗濯方法 Download PDFInfo
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- WO2023054728A1 WO2023054728A1 PCT/JP2022/036960 JP2022036960W WO2023054728A1 WO 2023054728 A1 WO2023054728 A1 WO 2023054728A1 JP 2022036960 W JP2022036960 W JP 2022036960W WO 2023054728 A1 WO2023054728 A1 WO 2023054728A1
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- Prior art keywords
- component
- washing
- cleaning
- cleaning liquid
- acid
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- WQEPLUUGTLDZJY-UHFFFAOYSA-N n-Pentadecanoic acid Natural products CCCCCCCCCCCCCCC(O)=O WQEPLUUGTLDZJY-UHFFFAOYSA-N 0.000 description 1
- 150000002825 nitriles Chemical class 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 1
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 1
- HMZGPNHSPWNGEP-UHFFFAOYSA-N octadecyl 2-methylprop-2-enoate Chemical compound CCCCCCCCCCCCCCCCCCOC(=O)C(C)=C HMZGPNHSPWNGEP-UHFFFAOYSA-N 0.000 description 1
- FSAJWMJJORKPKS-UHFFFAOYSA-N octadecyl prop-2-enoate Chemical compound CCCCCCCCCCCCCCCCCCOC(=O)C=C FSAJWMJJORKPKS-UHFFFAOYSA-N 0.000 description 1
- 125000006353 oxyethylene group Chemical group 0.000 description 1
- 125000004430 oxygen atom Chemical group O* 0.000 description 1
- 238000001139 pH measurement Methods 0.000 description 1
- WXZMFSXDPGVJKK-UHFFFAOYSA-N pentaerythritol Chemical compound OCC(CO)(CO)CO WXZMFSXDPGVJKK-UHFFFAOYSA-N 0.000 description 1
- 150000002978 peroxides Chemical class 0.000 description 1
- ZUOUZKKEUPVFJK-UHFFFAOYSA-N phenylbenzene Natural products C1=CC=CC=C1C1=CC=CC=C1 ZUOUZKKEUPVFJK-UHFFFAOYSA-N 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 229920000333 poly(propyleneimine) Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920000656 polylysine Polymers 0.000 description 1
- 229920001444 polymaleic acid Polymers 0.000 description 1
- 229920002503 polyoxyethylene-polyoxypropylene Polymers 0.000 description 1
- 229920000036 polyvinylpyrrolidone Polymers 0.000 description 1
- 239000001267 polyvinylpyrrolidone Substances 0.000 description 1
- 235000013855 polyvinylpyrrolidone Nutrition 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000003755 preservative agent Substances 0.000 description 1
- 150000003141 primary amines Chemical class 0.000 description 1
- NHARPDSAXCBDDR-UHFFFAOYSA-N propyl 2-methylprop-2-enoate Chemical compound CCCOC(=O)C(C)=C NHARPDSAXCBDDR-UHFFFAOYSA-N 0.000 description 1
- PNXMTCDJUBJHQJ-UHFFFAOYSA-N propyl prop-2-enoate Chemical compound CCCOC(=O)C=C PNXMTCDJUBJHQJ-UHFFFAOYSA-N 0.000 description 1
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 description 1
- MCJGNVYPOGVAJF-UHFFFAOYSA-N quinolin-8-ol Chemical compound C1=CN=C2C(O)=CC=CC2=C1 MCJGNVYPOGVAJF-UHFFFAOYSA-N 0.000 description 1
- 239000002964 rayon Substances 0.000 description 1
- 235000002020 sage Nutrition 0.000 description 1
- 150000003333 secondary alcohols Chemical class 0.000 description 1
- 150000003335 secondary amines Chemical class 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- WXMKPNITSTVMEF-UHFFFAOYSA-M sodium benzoate Chemical compound [Na+].[O-]C(=O)C1=CC=CC=C1 WXMKPNITSTVMEF-UHFFFAOYSA-M 0.000 description 1
- 229940079827 sodium hydrogen sulfite Drugs 0.000 description 1
- 235000010267 sodium hydrogen sulphite Nutrition 0.000 description 1
- 229910001415 sodium ion Inorganic materials 0.000 description 1
- 229940045870 sodium palmitate Drugs 0.000 description 1
- 235000010265 sodium sulphite Nutrition 0.000 description 1
- GGXKEBACDBNFAF-UHFFFAOYSA-M sodium;hexadecanoate Chemical compound [Na+].CCCCCCCCCCCCCCCC([O-])=O GGXKEBACDBNFAF-UHFFFAOYSA-M 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 239000008117 stearic acid Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000005720 sucrose Substances 0.000 description 1
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 description 1
- 150000003467 sulfuric acid derivatives Chemical class 0.000 description 1
- 239000003760 tallow Substances 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
- 239000011975 tartaric acid Substances 0.000 description 1
- 235000002906 tartaric acid Nutrition 0.000 description 1
- TUNFSRHWOTWDNC-HKGQFRNVSA-N tetradecanoic acid Chemical compound CCCCCCCCCCCCC[14C](O)=O TUNFSRHWOTWDNC-HKGQFRNVSA-N 0.000 description 1
- ATZHWSYYKQKSSY-UHFFFAOYSA-N tetradecyl 2-methylprop-2-enoate Chemical compound CCCCCCCCCCCCCCOC(=O)C(C)=C ATZHWSYYKQKSSY-UHFFFAOYSA-N 0.000 description 1
- XZHNPVKXBNDGJD-UHFFFAOYSA-N tetradecyl prop-2-enoate Chemical compound CCCCCCCCCCCCCCOC(=O)C=C XZHNPVKXBNDGJD-UHFFFAOYSA-N 0.000 description 1
- 239000002562 thickening agent Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 229960003500 triclosan Drugs 0.000 description 1
- 210000002268 wool Anatomy 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
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
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/38—Cationic compounds
- C11D1/42—Amino alcohols or amino ethers
- C11D1/44—Ethers of polyoxyalkylenes with amino alcohols; Condensation products of epoxyalkanes with amines
-
- 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
- C11D17/08—Liquid soap, e.g. for dispensers; capsuled
-
- 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
- C11D3/20—Organic compounds containing oxygen
- C11D3/22—Carbohydrates or derivatives thereof
-
- 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
- C11D3/37—Polymers
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F35/00—Washing machines, apparatus, or methods not otherwise provided for
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06L—DRY-CLEANING, WASHING OR BLEACHING FIBRES, FILAMENTS, THREADS, YARNS, FABRICS, FEATHERS OR MADE-UP FIBROUS GOODS; BLEACHING LEATHER OR FURS
- D06L1/00—Dry-cleaning or washing fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods
- D06L1/12—Dry-cleaning or washing fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods using aqueous solvents
Definitions
- the present invention relates to a washing method.
- This application claims priority based on Japanese Patent Application No. 2021-162976 filed in Japan on October 1, 2021, the content of which is incorporated herein.
- the rinsing process such as reducing the number of times of rinsing after washing with a cleaning liquid obtained by diluting the cleaning composition with water and reducing the amount of rinsing water required for rinsing. simplification is required.
- Patent Document 1 discloses a liquid for textile products containing a specific anionic surfactant, a specific amount of an alkylene oxide adduct of polyalkyleneamine, a specific fatty acid or a salt thereof, and a specific nonionic surfactant.
- a laundry method using the detergent composition is disclosed.
- the simplification of the rinsing process here means that at least one of the amount of rinsing water and the number of times of rinsing can be reduced, and preferably means that the rinsing process can be made unnecessary.
- the inventors of the present invention have found the following problems while studying a method for simplifying the rinsing process. For example, in a washing machine that is set to automatically start water supply and move to the rinsing process when foam is sensed after spin-drying, automatic extension of rinsing begins when foam is still sensed after the rinsing process. Therefore, in order to simplify or eliminate the need for the rinsing process, it is required to suppress the amount of foaming. In addition, when the number of rinsing times and the amount of rinsing water are reduced, dirt once removed from the items to be washed adheres to the items to be washed again, and as a result, sufficient detergency may not be obtained. Therefore, it is also necessary for the washing method to obtain sufficient detergency even when the number of times of rinsing is reduced and the amount of rinsing water required for rinsing is reduced.
- an object of the present invention is to provide a washing method that produces less foaming during washing, has good rinsability, and can exhibit sufficient detergency even when the rinsing process is simplified.
- the present invention has the following aspects.
- a method for washing textiles which has a washing step of bringing a washing solution into contact with textiles and does not require a rinsing step after the washing step,
- the cleaning liquid contains (A) component: surfactant and (B) component: polymeric organic dispersant,
- a laundry method wherein the concentration of the component (A) is 30 to 200 ppm relative to the total mass of the cleaning liquid.
- the washing liquid used in the washing method of the present invention is an aqueous liquid containing components (A) and (B).
- An aqueous liquid is a concept including at least one of an aqueous solution and an aqueous dispersion.
- Component is a non-soap surfactant.
- “Non-soap surfactants” are surfactants other than higher fatty acids or salts thereof (so-called soaps).
- a "higher fatty acid” is a saturated or unsaturated fatty acid having 8 to 24 carbon atoms. That is, component (A) is a surfactant excluding saturated or unsaturated fatty acids having 8 to 24 carbon atoms and salts thereof.
- the component (A) is a component that imparts detergency to the cleaning liquid.
- (A) component may be used individually by 1 type, and may use 2 or more types together.
- Component (A) includes nonionic surfactants, non-soap anionic surfactants, cationic surfactants, amphoteric surfactants, semipolar surfactants, and the like.
- the component (A) preferably contains one or both of the components (A1) and (A2) described below.
- the (A1) component is a nonionic surfactant.
- the component (A1) may be any nonionic surfactant conventionally used in detergent compositions for clothes and the like.
- Examples of component (A1) include polyoxyalkylene-type nonionic surfactants, alkylphenols, alkylene oxide adducts such as higher amines, polyoxyethylene polyoxypropylene block copolymers, fatty acid alkanolamines, fatty acid alkanolamides, and polyhydric alcohol fatty acids.
- Esters or alkylene oxide adducts thereof polyhydric alcohol fatty acid ethers, alkyl (or alkenyl) amine oxides, alkylene oxide adducts of hardened castor oil, sugar fatty acid esters, N-alkyl polyhydroxy fatty acid amides, alkyl glycosides and the like.
- “higher” means organic compounds having 8 to 24 carbon atoms.
- a polyoxyalkylene type nonionic surfactant is preferable because of its excellent detergency.
- (A1) component may be used individually by 1 type, and may use 2 or more types together.
- polyoxyalkylene-type nonionic surfactants include compounds represented by the following formula (a1) (hereinafter also referred to as "compound (a1)").
- R 1 is a hydrocarbon group having 6 to 22 carbon atoms
- X is a divalent linking group
- R 2 is a hydrogen atom, an alkyl group having 1 to 6 carbon atoms, or 2 carbon atoms.
- EO represents an oxyethylene group
- PO represents an oxypropylene group
- m represents the average number of repetitions of EO
- n represents the average number of repetitions of PO. is a number from 0 to 6.
- [(EO) m /(PO) n ] indicates that EO and PO may be random chains or block chains.
- the average repetition number can be measured by gas chromatography or the like.
- the hydrocarbon group for R 1 may be linear or branched. You may have an unsaturated bond.
- the carbon number of R 1 is 6-22, preferably 8-20, more preferably 10-18.
- Examples of R 1 include those derived from raw materials such as primary or secondary higher alcohols, higher fatty acids, and higher fatty acid amides.
- -X- includes -O-, -COO-, -CONH- and the like.
- -X- is preferably -O- or -COO- from the viewpoint of excellent detergency-enhancing effect.
- R 2 in formula (a1) is an alkyl group
- R 2 has 1 to 6 carbon atoms, preferably 1 to 3 carbon atoms.
- R 2 is an alkenyl group
- R 2 has 2 to 6 carbon atoms, preferably 2 to 3 carbon atoms.
- a hydrogen atom is preferred as R 2 .
- m is a number of 3 to 20, preferably 5 to 18, more preferably 7 to 16, representing the average repeating number of EO (that is, the average number of added moles of ethylene oxide). If m is at least the above lower limit, deterioration of raw material odor of component (A) itself can be suppressed. Detergency with respect to sebum can be improved as m is below the said upper limit.
- n is a number of 0 to 6, preferably 0 to 3, representing the average number of PO repeats (that is, the average number of added moles of propylene oxide). Liquid stability at high temperature (for example, 50° C.) can be further enhanced when n is equal to or less than the above upper limit.
- the addition method of EO and PO is not particularly limited, and may be, for example, random addition method or block addition method. Examples of block addition methods include a method of adding PO after adding EO, a method of adding PO after adding EO, a method of adding PO after adding EO, and then adding EO. is mentioned.
- the addition mole number distribution of EO or PO is not particularly limited.
- the addition mole number distribution is likely to vary depending on the reaction method in producing the nonionic surfactant.
- an alkali catalyst such as sodium hydroxide or potassium hydroxide
- the added mole number distribution of EO or PO tends to be a relatively wide distribution. be.
- R 1 preferably has 10 to 22 carbon atoms, more preferably 10 to 20 carbon atoms, and still more preferably 10 to 18 carbon atoms.
- R2 is preferably a hydrogen atom.
- R 1 preferably has 9 to 21 carbon atoms, more preferably 11 to 21 carbon atoms.
- R 2 is preferably an alkyl group having 1 to 6 carbon atoms or an alkenyl group having 2 to 6 carbon atoms, more preferably an alkyl group having 1 to 3 carbon atoms.
- the (A2) component is a non-soap anionic surfactant.
- Non-soap anionic surfactants are anionic surfactants other than higher fatty acids or salts thereof (so-called soaps).
- a "higher fatty acid” is a saturated or unsaturated fatty acid having 8 to 24 carbon atoms. That is, component (A2) is an anionic surfactant excluding saturated or unsaturated fatty acids having 8 to 24 carbon atoms and salts thereof.
- Component (A2) includes, for example, linear alkylbenzenesulfonic acid or its salt (LAS), ⁇ -olefinsulfonic acid or its salt (AOS), internal olefinsulfonic acid or its salt (IOS), hydroxyalkanesulfonic acid or its salt, Salts, polyoxyalkylene alkenyl ether sulfate esters or salts thereof, alkanesulfonic acids having alkyl groups or salts thereof, ⁇ -sulfo fatty acid esters or salts thereof (MES), alkyl ether carboxylic acids or salts thereof, polyoxyalkylene ether carboxylic acids or salts thereof, alkylamide ether carboxylic acids or salts thereof, alkenylamide ether carboxylic acids or salts thereof, acylaminocarboxylic acids or salts thereof, alkyl phosphates or salts thereof, polyoxyalkylene alkyl phosphates or salts thereof, poly Oxyalkylene alkylpheny
- Examples of the salt in component (A2) include alkali metal salts such as sodium salts and potassium salts; alkaline earth metal salts such as magnesium salts; alkanolamine salts such as monoethanolamine salts and diethanolamine salts.
- (A2) component may be used individually by 1 type, and may use 2 or more types together.
- component (A2) linear alkylbenzene sulfonic acid or its salt, ⁇ -olefin sulfonic acid or its salt, internal olefin sulfonic acid or its salt, and polyoxyalkylene alkenyl ether sulfuric acid are used because they are excellent in the effect of improving rinsability. At least one selected from the group consisting of esters or salts thereof is preferred.
- (A2) component may be used individually by 1 type, and may use 2 or more types together.
- straight-chain alkylbenzenesulfonic acid or salt thereof those having a straight-chain alkyl group having 8 to 16 carbon atoms are preferable, and those having a straight-chain alkyl group having 10 to 14 carbon atoms are particularly preferable.
- the ⁇ -olefin sulfonate and internal olefin sulfonate preferably have 10 to 20 carbon atoms.
- an alkenyl ether sulfate ester salt having a linear or branched alkenyl group having 10 to 20 carbon atoms and added with an average of 1 to 10 mol of ethylene oxide (i.e. , polyoxyethylene alkenyl ether sulfate) are preferred.
- the (A2) component may be produced by a conventional method, or may be a commercially available product.
- component (A) other than the above examples include cationic surfactants, amphoteric surfactants, and semipolar surfactants.
- cationic surfactants include alkyltrimethylammonium salts, dialkyldimethylammonium salts, alkylbenzyldimethylammonium salts, alkylpyridinium salts and the like.
- Counter ions for these salts include halogen ions, alkyl sulfate ions, and the like.
- Halogen ions include fluoride ions, chloride ions, bromide ions, iodide ions, and the like.
- the alkyl sulfate ion preferably has an alkyl group of 1 to 3 carbon atoms, such as methyl sulfate ion and ethyl sulfate ion.
- Amphoteric surfactants include alkylcarboxybetaine, alkylsulfobetaine, alkylhydroxysulfobetaine, alkylamidobetaine, imidazolinium betaine and the like.
- Examples of semipolar surfactants include amine oxide type surfactants such as lauryldimethylamine oxide and lauramidopropyldimethylamine oxide. These may be produced by a conventional method, or may be commercially available products.
- the concentration of component (A) in the cleaning liquid is 30 to 200 ppm, preferably 30 to 150 ppm, more preferably 40 to 140 ppm, and even more preferably 50 to 120 ppm on a mass basis (relative to the total mass of the cleaning liquid).
- the concentration of the component (A) is at least the above lower limit, the anti-soil redeposition property can be further enhanced.
- the concentration of component (A) is equal to or less than the above upper limit, foaming can be suppressed and rinsability can be further enhanced.
- the concentration of the (A1) component in the cleaning liquid is preferably 10 to 200 ppm, more preferably 10 to 150 ppm, even more preferably 15 to 120 ppm, and even more preferably 20 to 100 ppm, based on mass. preferable.
- concentration of the component (A1) is equal to or higher than the above lower limit, the detergency can be further enhanced.
- concentration of the component is equal to or less than the above upper limit, the rinsability can be further enhanced.
- the concentration of the (A2) component in the cleaning liquid is preferably 10 to 150 ppm, more preferably 15 to 120 ppm, even more preferably 20 to 100 ppm, and even more preferably 20 to 50 ppm, based on mass. preferable.
- concentration of the component (A2) is at least the above lower limit, the anti-soil redeposition property can be further enhanced.
- concentration of the component is equal to or less than the above upper limit, the rinsability can be further enhanced.
- the (A1) component and the (A2) component may be used alone or in combination. It is preferable to use component (A1) alone or to use components (A1) and (A2) in combination.
- the mass ratio represented by (A1) component/(A) component (hereinafter also referred to as “A1/A ratio”) in the cleaning liquid is preferably 0.1 to 1, more preferably 0.3 to 1, and 0 0.5 to 1 is more preferred. Detergency can be improved more as A1/A ratio is more than the said lower limit.
- the mass ratio represented by the (A1) component/(A2) component (hereinafter also referred to as the “A1/A2 ratio”) is 0.1 to 10. It is preferably 0.3 to 5, more preferably 1 to 3.
- the A1/A2 ratio is at least the above lower limit, the rinsability is good, and the detergency can be further enhanced.
- Component (B) is a polymeric organic dispersant.
- the cleaning solution of the present embodiment exhibits the effect of assisting the cleaning action by containing the component (B). Therefore, the cleaning liquid of the present embodiment can exert sufficient cleaning power even when the concentration of the component (A) is lower than that of conventional cleaning agents.
- polymeric organic dispersant refers to an organic compound having a molecular weight of 1000 or more, which exerts detergency when used together with the component (A).
- the component (B) preferably contains one or more selected from the components (B1), (B2) and (B3) described below.
- Component (B1) is an alkoxylated polyalkyleneimine. That is, the (B1) component is an alkylene oxide adduct of polyalkyleneimine.
- Polyalkyleneimine is represented, for example, by the following formula (b1). NH 2 —R 3 —[N(A 1 )-R 3 ] n —NH 2 (b1)
- R 3 is each independently an alkylene group having 2 to 6 carbon atoms
- a 1 is a hydrogen atom or another branched polyamine chain
- n is a number of 1 or more. However, not all the A 1 are hydrogen atoms.
- the polyalkyleneimine represented by formula (b1) has a branched polyamine chain in its structure.
- R 3 includes a linear alkylene group having 2 to 6 carbon atoms and a branched alkylene group having 3 to 6 carbon atoms.
- R 3 is preferably an alkylene group having 2 to 4 carbon atoms, more preferably an alkylene group having 2 carbon atoms.
- Polyalkyleneimines are obtained, for example, by polymerizing at least one type of alkyleneimine having 2 to 6 carbon atoms by a conventional method.
- the alkyleneimine having 2 to 6 carbon atoms includes ethyleneimine, propyleneimine, 1,2-butyleneimine, 2,3-butyleneimine, 1,1-dimethylethyleneimine and the like.
- polyethyleneimine hereinafter also referred to as “PEI”
- PEI polypropyleneimine
- PEI is obtained by polymerizing ethyleneimine and has a branched chain structure containing primary, secondary and tertiary amine nitrogen atoms in its structure.
- the weight average molecular weight of the polyalkyleneimine is preferably 200-2000, more preferably 300-1500, even more preferably 400-1000, and particularly preferably 500-800.
- the polyalkyleneimine preferably has 5 to 30 active hydrogens in one molecule, more preferably 7 to 25 active hydrogens, even more preferably 10 to 20 active hydrogens.
- the mass average molecular weight in this specification means the value obtained by gel permeation chromatography (GPC) using polyethylene glycol (PEG) as a standard substance.
- the (B1) component is obtained by adding an alkylene oxide to a polyalkyleneimine.
- a basic catalyst such as sodium hydroxide, potassium hydroxide and sodium methylate
- an alkylene oxide such as ethylene oxide is added to the polyalkyleneimine starting material at 100 to 180°C. and the like.
- Alkylene oxides include alkylene oxides having 2 to 4 carbon atoms such as ethylene oxide, propylene oxide and butylene oxide, with ethylene oxide and propylene oxide being preferred, and ethylene oxide being more preferred.
- Component (B1) includes ethylene oxide adducts of polyalkyleneimine, propylene oxide adducts of polyalkyleneimine, and ethylene oxide-propylene oxide adducts of polyalkyleneimine.
- the ethylene oxide-propylene oxide adduct of polyalkyleneimine is obtained by adding ethylene oxide and propylene oxide to polyalkyleneimine. is.
- component (B1) is preferably an ethylene oxide adduct of polyalkyleneimine or an ethylene oxide-propylene oxide adduct of polyalkyleneimine, more preferably an ethylene oxide adduct of polyalkyleneimine.
- an average of 5 to 40 mol of alkylene oxide is preferably added per 1 mol of active hydrogen possessed by the raw material polyalkyleneimine, and an average of 5 to 30 mol of alkylene oxide is added. is more preferred, more preferably 8 to 25 mol of alkylene oxide on average is added, and particularly preferred is one to which 8 to 15 mol of alkylene oxide on average is added.
- Examples of the (B1) component include compounds represented by the following formula (b1-1).
- each R 22 is independently an alkylene group having 2 to 6 carbon atoms, and each m is independently a number of 1 or more.
- R 22 is preferably an alkylene group having 2 or 3 carbon atoms, more preferably an alkylene group having 2 carbon atoms.
- m represents the average repetition number of (R 22 O).
- Each m is independently preferably a number of 5 to 40, more preferably a number of 5 to 30, even more preferably a number of 8 to 25, and particularly preferably a number of 8 to 15.
- the mass average molecular weight of component (B1) is preferably 1,000 to 80,000, more preferably 2,000 to 50,000, still more preferably 3,000 to 30,000, and particularly preferably 5,000 to 20,000.
- component (B1) a synthetic product or a commercially available product may be used.
- examples of commercially available products include "Sokalan (registered trademark) HP20".
- (B1) component may be used individually by 1 type, and may use 2 or more types together.
- the (B2) component is a polyacrylic acid-based polymer.
- the cleansing liquid of the present embodiment can further enhance the detergency against sebum stains by containing the (B2) component.
- component (B2) include polyacrylic acid and its salts, polymaleic acid and its salts, acrylic acid-maleic acid copolymers and their salts, and copolymers of hydrocarbons having 4 to 12 carbon atoms and maleic acid. and salts thereof, acrylic acid-methacrylic acid copolymers and salts thereof, and the like.
- Component (B2) is selected from one or more selected from acrylic acid-maleic acid copolymers and salts thereof, or from copolymers of hydrocarbons having 4 to 12 carbon atoms and maleic acid and salts thereof.
- the salt may be partly or wholly, and the salt is preferably an alkali metal salt such as sodium or potassium or an organic amine salt such as alkanolamine.
- the hydrocarbon having 4 to 12 carbon atoms in the component (B2) may be any one that can be copolymerized with maleic acid. -9 hydrocarbons are more preferred. Such hydrocarbons include, for example, unsaturated chain hydrocarbons having double bonds.
- the (B2) component copolymer is selected from repeating units derived from a monomer represented by the following formula (b2-1) and repeating units derived from a monomer represented by the following formula (b2-2). It may be a polymer having one or more repeating units.
- R 5 is a hydrogen atom or a methyl group
- R 6 is a hydrogen atom, an alkyl group having 1 to 9 carbon atoms, or (AO)nX.
- A is an oxyalkylene group having 2 to 4 carbon atoms
- n is an integer of 2 to 300
- X is a hydrogen atom or an alkyl group having 1 to 18 carbon atoms.
- R 7 is a hydrogen atom or a methyl group
- R 8 is a hydrogen atom or an alkyl group having 10 to 30 carbon atoms
- R 9 is a hydrogen atom or a carboxyl group.
- R 9 when R 9 is a hydrogen atom, R 8 is an alkyl group having 10 to 30 carbon atoms, and when R 9 is a carboxyl group, R 8 is a hydrogen atom.
- the alkyl group for R 6 may be linear or branched. It may also contain a cyclic structure.
- the number of carbon atoms in the alkyl group of R 6 is preferably 1-8, more preferably 1-4.
- Examples of the monomer represented by formula (b2-1) include acrylic acid; methyl acrylate, ethyl acrylate, n-propyl acrylate, and n-butyl acrylate. acrylic acid esters such as methacrylic acid; methacrylic acid esters such as methyl methacrylate, ethyl methacrylate, n-propyl methacrylate and n-butyl methacrylate.
- the monomer (b2-1) may be used alone or in combination of two or more.
- the alkyl group for R 8 may be linear or branched. Moreover, it may contain a cyclic structure.
- the number of carbon atoms in the alkyl group of R 8 is preferably 10-25, more preferably 10-20.
- R 9 is a hydrogen atom and R 8 is an alkyl having 10 to 30 carbon atoms.
- Examples of the group monomer (b2-2) include decyl acrylate, dodecyl acrylate, tetradecyl acrylate, hexadecyl acrylate, octadecyl acrylate, decyl methacrylate, dodecyl methacrylate, tetradecyl methacrylate, hexadecyl methacrylate, and octadecyl methacrylate.
- Examples of the monomer (b2-2) in which R 9 is a carboxyl group and R 8 is a hydrogen atom in formula (b2-2) include maleic acid and fumaric acid. Maleic acid is preferred as the monomer (b2-2) in which R 9 is a carboxyl group and R 8 is a hydrogen atom.
- the monomer (b2-2) may be used alone or in combination of two or more.
- the (B2) component may be a crosslinked polymer or a non-crosslinked polymer.
- the crosslinked polymer include a crosslinked polymer that is crosslinked with a crosslinking agent.
- the cross-linking agent include allyl ether compounds.
- the allyl ether compound include allyl ether, allyl ether of sugar, allyl ether of sugar alcohol, and the like.
- the sugar include sucrose and the like.
- Examples of the sugar alcohol include pentaerythritol and the like.
- Component (B2) is a repeating unit other than the repeating unit derived from the monomer represented by formula (b2-1) and the repeating unit derived from the monomer represented by formula (b2-2) (other repeating unit ).
- Other repeat units include repeat units derived from other monomers.
- Other monomers are not particularly limited as long as they are copolymerizable with the monomers (b2-1) and (b2-2), and include methyl acrylate, ethyl acrylate, methacrylic acid, and methyl methacrylate.
- Another monomer may be used individually by 1 type, and may use 2 or more types together.
- the mass average molecular weight of component (B2) is preferably 3,000 to 100,000, more preferably 5,000 to 80,000, and even more preferably 5,000 to 50,000.
- Detergency can be improved more as the mass average molecular weight of a component is more than the said lower limit.
- Liquid stability is improved more as the mass average molecular weight of a component is below the said upper limit.
- the (B2) component may be used alone or in combination of two or more.
- the (B3) component is a carboxymethylcellulose polymer.
- the cleaning liquid of the present embodiment can further enhance anti-soil redeposition properties by containing the (B3) component.
- (B3) Component includes, for example, carboxymethylcellulose (CMC) or a salt thereof. Salts of CMC include alkali metal salts such as sodium salts and potassium salts, ammonium salts and the like, and mixtures of these salts may also be used. As the salt of CMC, sodium salt is preferred.
- CMC examples include anionic water-soluble cellulose ethers or water-insoluble cellulose ethers obtained by treating pulp as a raw material with an aqueous sodium hydroxide solution and then reacting it with monochloroacetic acid.
- polymer compounds having a repeating unit represented by the following formula (b3-1) are exemplified.
- n represents the number of repeating units, and R 11 to R 13 each independently represent a hydroxyl group or a carboxymethyl group (--CH 2 COO--Z+; Z+ is a counter ion). show.
- the mass average molecular weight of CMC is preferably 100,000 or more, more preferably 300,000 or more, and even more preferably 800,000 or more.
- the upper limit of the mass average molecular weight of CMC is preferably 1,200,000 or less, more preferably 1,000,000 or less.
- the mass average molecular weight of CMC is at least the above lower limit, the anti-soil redeposition property can be further enhanced.
- the mass average molecular weight of CMC is equal to or less than the above upper limit, the solubility becomes favorable, and the liquid stability can be further enhanced.
- the degree of etherification of CMC is preferably 0.2 to 1.3, more preferably 0.2 to 1.0, even more preferably 0.2 to 0.7.
- the degree of etherification of CMC refers to the average number of hydroxyl groups substituted with carboxymethyl groups or salts thereof per glucose ring unit (out of the three hydroxyl groups of the glucose ring, how many are carboxymethyl groups or (maximum of 3). For example, in the above formula (b3-1), among —OR 11 , —OR 12 and —OR 13 , the average number of those in which R 11 to R 13 are substituted with carboxymethyl groups or salts thereof is the degree of etherification. becomes.
- CMC may use a commercial item.
- Commercial products of CMC are, for example, sold by Daicel Miraise Co., Ltd. under the trade names of "CMC Daicel” and "HEC (Hydroxyethyl Cellulose) Daicel".
- CMC Daicel for example, 1110, 1120, 1130, 1140, 1160, 1170, 1180, 1190, 1220, 1240, 1260, 1280, 1290, 1380, 2200, 2260, 2280, 2450, 2340, etc. is mentioned.
- HEC Daicel includes, for example, SP200, SP400, SP500, SP600, SP850, SP900, etc., all of which are part numbers.
- Sunrose registered trademark
- Sunrose includes, for example, Sunrose F series such as F10LC, F600LC, F1400LC, F10MC, F150MC, F350HC, F1400MC, and F1400MG; Sunrose A series such as A02SH, A20SH, and A200SH; product name).
- CMC Daicel 1130, 1170, 1180, 1190, 1260, HEC Daicel SP400, SP500, Sunrose F1400LC, F1400MC, Sunrose SLD-F1 are preferable as CMC commercial products, and CMC Daicel 1260, HEC Daicel SP500 is more preferred.
- the (B3) component may be used alone or in combination of two or more.
- Ingredients also include cationized cellulose, polyvinylpyrrolidone, hydroxypropylmethylcellulose, and the like.
- the concentration of component (B) in the cleaning solution is preferably 5-200 ppm, more preferably 10-150 ppm, and even more preferably 20-100 ppm on a mass basis (relative to the total mass of the cleaning solution).
- Liquid stability is improved more as the density
- the concentration of the (B1) component is preferably 5-100 ppm, more preferably 10-80 ppm, and even more preferably 20-50 ppm, based on mass.
- concentration of the component (B1) is at least the above lower limit, the detergency and the anti-soil redeposition property can be further enhanced.
- (B1) Liquid stability is improved more as the density
- the concentration of the (B2) component is preferably 5-100 ppm, more preferably 10-80 ppm, and even more preferably 20-50 ppm, based on mass.
- the concentration of the component is at least the above lower limit, the detergency and anti-soil redeposition property can be further enhanced.
- Liquid stability is improved more as the density
- the concentration of component (B3) is preferably 0.1 to 50 ppm, more preferably 0.5 to 30 ppm, and even more preferably 1 to 10 ppm, based on mass.
- concentration of the component (B3) is at least the above lower limit, the anti-soil redeposition property can be further enhanced.
- Liquid stability is improved more as the density
- the (B1) component, the (B2) component and the (B3) component may be used alone or in combination of two or more.
- the mass ratio represented by component (B)/component (A) in the cleaning liquid (hereinafter also referred to as "B/A ratio") is preferably 0.01 to 10, more preferably 0.05 to 5, and 0 0.1 to 1 is more preferred, and 0.3 to 1 is particularly preferred.
- B/A ratio is at least the above lower limit, detergency and anti-soil redeposition properties can be further enhanced. Liquid stability is improved more as B/A ratio is below the said upper limit.
- the cleaning liquid of this embodiment contains a solvent.
- the solvent it is preferable to use water from the viewpoints of easiness of preparation, easiness of use, easiness of availability, and the like.
- the water used is preferably ion-exchanged water from which metal ions such as heavy metals dissolved in water have been removed, distilled water, or purified water, from the viewpoint of the stability of the cleaning solution over time.
- the content of water in the cleaning liquid is preferably 50% by mass or more, more preferably 70% by mass or more, and even more preferably 90% by mass or more, relative to the total mass of the cleaning liquid. When the content of water is at least the above lower limit, the liquid stability of the cleaning liquid over time becomes better.
- the cleaning liquid of the present embodiment may contain other components (optional components) other than the components (A) and (B).
- optional ingredients include those commonly used in detergent compositions, such as higher fatty acids or salts thereof, water-miscible organic solvents, chelating agents, enzymes, hydrotropic agents, antifoaming silicones, soil release agents, stabilizing agents. agents, alkali agents, texture improvers, preservatives, fluorescent agents, dye transfer inhibitors, pearlescent agents, antioxidants, antibacterial agents, thickeners, UV absorbers, general-purpose dyes or pigments as coloring agents, emulsions agents, fragrances, insoluble particles, pH adjusters, and extracts of natural products.
- One of these optional components may be used alone, or two or more thereof may be used in combination.
- the cleaning liquid can further enhance rinsability by containing a higher fatty acid or a salt thereof.
- the cleaning liquid preferably contains a higher fatty acid or a salt thereof.
- higher fatty acids fatty acids having 8 to 18 carbon atoms are preferred.
- fatty acids having 8 to 18 carbon atoms include single fatty acids such as lauric acid, myristic acid, palmitic acid, stearic acid, isostearic acid, hydroxystearic acid and oleic acid; mixed fatty acids such as coconut oil fatty acid and beef tallow fatty acid. mentioned.
- Fatty acids having 8 to 18 carbon atoms may be used singly or in combination of two or more.
- a combination of a fatty acid having a hydrocarbon group with a carbon number of 12 and a fatty acid having a hydrocarbon group with a carbon number of 14 to 18 is preferable, and a fatty acid with a carbon number of 12 and two or more kinds of hydrocarbon groups having a carbon number of 12 are preferable. More preferred is the combination with a fatty acid of 14-18.
- [fatty acid with 14 to 18 carbon atoms]/[fatty acid with 12 carbon atoms], which is the ratio of the mass of the fatty acid with 14 to 18 carbon atoms to the mass of the fatty acid with 12 carbon atoms, is preferably 0.03 or more and 1 or less, 0.05 or more and 0.8 or less are more preferable, and 0.06 or more and 0.5 or less are still more preferable.
- Salt forms of higher fatty acids include alkali metal salts such as sodium and potassium; alkaline earth metal salts such as magnesium; and alkanolamine salts such as monoethanolammonium and diethanolammonium.
- alkali metal salts such as sodium and potassium
- alkaline earth metal salts such as magnesium
- alkanolamine salts such as monoethanolammonium and diethanolammonium.
- commercially available higher fatty acids or salts thereof include sodium coconut fatty acid (coconut fatty acid (manufactured by NOF Corporation) neutralized with sodium hydroxide, which is a pH adjuster), C16 soap (sodium palmitate ( Kanto Kagaku Co., Ltd.)) and the like.
- the concentration of the higher fatty acid or a salt thereof in the cleaning liquid is preferably 20-115 ppm, more preferably 30-80 ppm, based on mass.
- the concentration of the higher fatty acid or salt thereof is at least the above lower limit, the rinsability can be further enhanced.
- the concentration of the higher fatty acid or its salt is equal to or less than the above upper limit, the detergency can be further enhanced.
- a water-miscible organic solvent refers to an organic solvent that dissolves in 1 L of deionized water at 25° C. in an amount of 50 g or more.
- water-miscible organic solvents include alcohols, glycols, polyglycols, alkyl ethers, phenoxyethanol and the like.
- alcohols include ethanol, 1-propanol, 2-propanol, 1-butanol and the like.
- Glycols include, for example, propylene glycol, butylene glycol, hexylene glycol and the like.
- polyglycols include dipropylene glycol and the like.
- alkyl ethers include diethylene glycol monobutyl ether (butyl carbitol), diethylene glycol dimethyl ether, diethylene glycol monophenyl ether, 3-methoxy-3-methyl-1-butanol and the like.
- ethanol, propylene glycol, diethylene glycol monobutyl ether (butyl carbitol), 3-methoxy-3-methyl-1-butanol, and phenoxyethanol are preferred in terms of availability, liquid stability, fluidity, and the like.
- Metal ion scavengers include malonic acid, succinic acid, malic acid, diglycolic acid, tartaric acid, citric acid, methylglycine diacetic acid (MGDA), L - glutamic diacetic acid (GLDA), diethylenetriaminepentaacetic acid (DTPA), ethylenediaminetetraacetic acid, ethylenediaminesuccinic acid (EDDS), 3-hydroxy-2,2'-iminodisuccinic acid (HIDS), L-aspartic acid -N,N- diacetic acid and salts thereof, and the like.
- MGDA methylglycine diacetic acid
- GLDA L - glutamic diacetic acid
- DTPA diethylenetriaminepentaacetic acid
- EDDS ethylenediaminetetraacetic acid
- EDDS ethylenediaminesuccinic acid
- HIDS 3-hydroxy-2,2'-iminodisuccinic acid
- Hydrotropic agents include p-toluenesulfonic acid or its salts, cumenesulfonic acid or its salts, benzoates, phenoxyethanol, and urea.
- soil release agents include at least one unit selected from the group consisting of alkylene terephthalate units and alkylene isophthalate units described in WO 2014/109380, and the group consisting of oxyalkylene units and polyoxyalkylene units. and at least one selected unit.
- trade name: TexCare SRN-100 (manufactured by Clariant Japan, mass average molecular weight: 2000 to 3000)
- trade name: TexCare SRN-300 (manufactured by Clariant Japan, mass average molecular weight: 7000)
- trade name: Components commercially available as Repel-O-Tex Crystal (manufactured by Rhodia)
- trade name: Repel-O-Tex QCL trade name: Repel-O-Tex QCL (manufactured by Rhodia)
- alkaline agents include alkanolamines such as monoethanolamine, diethanolamine and triethanolamine.
- a silicone oil having a modified group can be used as a texture improver.
- Specific examples include polyether-modified silicone, aminopolyether-modified silicone, amidepolyether-modified silicone, and alkylpolyether-modified silicone.
- the silicone oil having a modified group By blending the silicone oil having a modified group, the friction of the textile product in the bath is reduced, and the texture after drying is improved.
- examples of commercially available silicone oils having a modifying group include "CF1188N", "BY16-878", “BY16-891", “BY16-893” and "FV2090-01” manufactured by Dow Corning Toray Co., Ltd.
- Oil-type antifoaming silicone is an antifoaming agent composed of 100% unmodified silicone oil and containing no silica. Commercially available products include SH200 (Dow Corning Toray Co., Ltd.). Oil compound type antifoaming silicone is an antifoaming agent in which water-insoluble particles such as finely divided silica are blended with silicone oil.
- Solution-type antifoaming silicone is an antifoaming agent obtained by dissolving silicone oil in a solvent such as isoparaffin.
- Commercially available products include KS-602A (Shin-Etsu Chemical Co., Ltd.).
- Emulsion-type antifoaming silicone is an antifoaming agent obtained by emulsifying a silicone oil compound with a nonionic active agent.
- Self-emulsifying antifoaming silicone is an antifoaming agent composed of a hydrophilic modified silicone oil and an oil compound.
- Commercially available products include KS-537 (Shin-Etsu Chemical Co., Ltd.).
- antiseptics examples include "Cason CG” (trade name) manufactured by Dow Chemical Company, "Acticide MBS” (trade name) manufactured by Thor Japan, and "NIPACIDE BIT 20" (trade name) manufactured by Clariant.
- Antioxidants include dibutylhydroxytoluene (BHT), distyrenated cresol, sodium sulfite, sodium hydrogen sulfite, and the like.
- perfumes include perfume ingredients described in JP-A-2002-146399.
- pH adjusters include sulfuric acid, sodium hydroxide, potassium hydroxide, alkanolamine, and the like.
- antibacterial agents examples include diphenyl, alcohol, phenol, aldehyde, carboxylic acid, ester, ether, nitrile, peroxide/epoxy, halogen, pyridine/quinoline, triazine, Organic antibacterial agents such as isothiazolone, imidazole/thiazole, anilide, biguanide, disulfide, thiocarbamate, carbohydrate, tropolone, and organic metal; inorganic antibacterial agents such as metal oxides and silver is mentioned.
- diclosan examples include diclosan, triclosan, bis-(2-pyridylthio-1-oxide)zinc, polyhexamethylene biguanide hydrochloride, 8-oxyquinoline, isopropylmethylphenol, polylysine and the like.
- Extracts of natural products include, for example, dog pagoda, urticaria, echinacea, scutellaria baicalensis, yellowfin tuna, Japanese coptis, allspice, oregano, pagoda, chamomile, honeysuckle, clara, key mussel, kay, bay bay, magnolia, burdock, comfrey, jassho, Burnt, Peony, Ginger, Goldenrod, Sambucus nigra, Sage, Mistletoe, Hosoba okera, Thyme, Hana grass, Clove, Unshu mandarin, Tea tree, Barberry, Houttuynia cordata, Nandina, Nigwo, Iron rush, Shirogaya, Boletus, Hollanda goat, Hop, Honshitan, Mountain grape, purple tagaya, sanguinea, black leopard, wild rose, eucalyptus, lavender, rose, rosemary, balan, cedar, gile
- the total content of optional components is preferably 200 ppm or less, more preferably 150 ppm or less, even more preferably 100 ppm or less, and may be 0 ppm, based on the total mass of the cleaning liquid.
- the washing liquid preferably has a pH of 4 to 10, more preferably 5 to 9, and even more preferably 6 to 8 at 25°C.
- the pH is measured at 25° C. using a pH meter (for example, “HM-30G” (product name) manufactured by Toa DKK Co., Ltd.) or the like.
- Viscosity means a value measured using a B-type (Brookfield type) viscometer at a temperature of 25°C.
- the cleaning solution of the present embodiment is obtained by dispersing component (A), component (B), and optional components in water so that the concentration of component (A) reaches a predetermined concentration. be done.
- a detergent composition containing component (A) and component (B) in which the concentration of component (A) is higher than that in the cleaning liquid is prepared, and this detergent composition is diluted 200 to 3000 times.
- a cleaning liquid having a predetermined concentration of the component (A) may be produced. From the viewpoint of practicality, the cleaning liquid is preferably prepared by diluting the cleaning composition with water.
- a liquid detergent composition may be sufficient as a detergent composition, and a powder detergent composition may be sufficient as it.
- the content of component (A) in the cleaning composition is preferably 3 to 20% by mass, more preferably 5 to 15% by mass, and even more preferably 5 to 12% by mass, relative to the total mass of the cleaning composition. , 5 to 10% by weight are particularly preferred.
- the content of component (B) in the detergent composition is preferably 1 to 15% by mass, more preferably 2 to 10% by mass, and even more preferably 3 to 5% by mass, relative to the total mass of the detergent composition. .
- the content of the component is at least the above lower limit, the anti-soil redeposition property can be further enhanced.
- the detergency can be further enhanced.
- Liquid stability is improved more as content of a component is below the said upper limit.
- the content of water in the cleaning composition is not particularly limited, but is preferably 30 to 95% by mass, more preferably 50 to 90% by mass, and 70 to 85% by mass, relative to the total mass of the cleaning composition. More preferred.
- the content of the optional component in the cleaning composition is preferably 20% by mass or less, more preferably 10% by mass or less, and may be 0% by mass, relative to the total mass of the cleaning composition. The total content of each component of the cleaning composition does not exceed 100% by mass.
- the washing method of the present invention is a washing method that does not require a rinsing step after washing the textile product with the washing solution described above. Since the washing method of the present invention does not require a rinsing step, the environmental load can be reduced and textile products can be washed in a short period of time. In addition, since the washing method of the present invention does not require a rinsing step, it is possible to maintain the fragrance and antibacterial effect attached to the textile product, and reduce damage to the textile product.
- the washing method of this embodiment is the same as the normal washing method except that no rinsing process is required.
- the washing method of this embodiment has a washing process and a dehydration process.
- the washing method of this embodiment includes, for example, a method of washing textile products using a washing machine.
- the washing method of the present embodiment includes hand-washing in a washbasin and washing in which textile products are placed in a bag or the like and rubbed and washed outdoors.
- the washing step is a step of contacting the textile product with the washing liquid of the present embodiment to wash the textile product.
- the textile may be sprinkled with the washing liquid, or the textile may be immersed in the washing liquid.
- the washing step preferably includes an operation (immersion operation) of immersing the textile product in the washing liquid, since the contact efficiency can be further enhanced and the washing effect can be further enhanced.
- the washing step may have only the immersion operation, or may have a dripping operation and a stirring operation in addition to the immersion operation.
- the dropping operation is an operation of dropping the cleaning liquid of the present embodiment onto the textile product. The amount of the cleaning liquid to drop is appropriately determined according to the type and amount of the textile product.
- the bath ratio represented by [mass of washing liquid]/[mass of textile product] in the immersion operation is preferably 5 or more, more preferably 10 or more, and even more preferably 20 or more.
- the upper limit of the liquor ratio is not particularly limited, but is set to 50, for example.
- the stirring operation stirs the washing liquid in which the objects to be washed are immersed, and imparts a shearing force to the objects to be washed.
- the stirring operation is performed, for example, by rotating or rotating the washing tub of the washing machine.
- the rotation speed and rotation time of the washing tub in the stirring operation are appropriately determined according to the type and amount of textile products.
- the time (contact time) during which the washing solution is brought into contact with the textile product is preferably 3 minutes or longer, preferably 5 minutes or longer, and more preferably 10 minutes or longer.
- the upper limit of the contact time is not particularly limited, but from the viewpoint of washing efficiency, it is preferably 6 hours or less, more preferably 2 hours or less, further preferably 30 minutes or less, and particularly preferably 15 minutes or less.
- the term "contact time” refers to the time from contacting the textile product with the cleaning liquid to the time the textile product is removed from the cleaning liquid, or the time from the start of the dehydration step described below.
- the temperature of the cleaning liquid in the cleaning step is preferably 10-90°C, more preferably 20-70°C.
- the temperature of the cleaning liquid in the cleaning step is equal to or higher than the above lower limit, the cleaning effect can be further enhanced.
- the temperature of the washing liquid in the washing step is equal to or lower than the above upper limit, deterioration of textile products can be suppressed.
- textile products include, for example, clothes, cloths, towels, handkerchiefs, sheets, curtains, pillowcases, toilet mats, and the like.
- the material of the textile product is not particularly limited, and examples thereof include natural fibers, synthetic fibers, semi-synthetic fibers, regenerated fibers, and blended, woven, or knitted products of these various fibers.
- natural fibers include cotton, wool, linen, and the like.
- Synthetic fibers include, for example, polyester, nylon, and acrylic.
- semi-synthetic fibers include acetate and the like.
- regenerated fibers include rayon, tencel, and polynosic.
- the washing machine includes, for example, a two-tub washing machine, a fully automatic washing machine, a washing machine with an automatic detergent injection function, a commercial washing machine, and the like.
- Examples of the fully automatic washing machine include a washing machine having a vertical washing tub, a drum type washing machine, a drum type washing machine with a dryer, and the like.
- As the washing machine a two-tank washing machine and a washing machine having a vertical washing tub are preferable because the textile products can be easily immersed in the washing liquid.
- the textile product may be contacted with the component (A) after the component (B) is contacted, or after the component (B) is contacted with the textile product, the component (A) is contacted.
- the (A) component and the (B) component may be brought into contact with the textile product at the same time.
- the “washing step” refers to the step of contacting the textile product with the washing liquid, and then the dehydration step (that is, the amount of the washing liquid contacting the textile product becomes less than a predetermined amount) or the rinsing step described later. (That is, until the concentration of component (A) in the cleaning liquid becomes less than a predetermined concentration).
- the washing method of the present embodiment does not have a dehydration step, the state in which the textile product is in contact with the washing liquid at a bath ratio of 0.1 or more is called the washing step.
- the washing method of this embodiment does not require a rinsing process after the washing process.
- the washing method of this embodiment may have a rinsing step.
- the rinsing step is a step of bringing the textiles into contact with a rinsing liquid to reduce the component (A) adhering to the textiles.
- the term "rinse liquid” refers to an aqueous liquid containing component (A) at a concentration of less than 30 ppm.
- the concentration of component (B) in the rinse solution is preferably less than 10 ppm.
- the rinsing method includes, for example, adding water to the cleaning liquid in which the textile product is immersed to make a rinsing liquid, bringing the textile product into contact with the rinsing liquid, and A method of applying mechanical force such as stirring can be used.
- the rinsing method include a method in which the cleaning liquid and the textile are separated, the separated textile is brought into contact with water, and a mechanical force such as stirring is applied to the textile.
- the method for separating the washing liquid and the textile product include a method of draining the washing liquid from the washing tub, a method of removing the textile product from the washing liquid, and the like.
- the washing method of the present embodiment may have a rinsing step, it is preferable not to have a rinsing step from the viewpoints of resource saving, energy saving, reduction of environmental load, and the like.
- the dehydration process is a process that removes water adhering to textile products.
- the washing method of the present embodiment has a dehydration step, so that the drying efficiency of textile products can be improved. For this reason, the washing method of the present embodiment preferably has a dehydration step.
- Examples of the dehydration method include a method of applying centrifugal force to the textile product in contact with the cleaning liquid, a method of squeezing the textile product to remove the cleaning liquid, and the like.
- the bath ratio after dehydration is preferably less than 1, more preferably 0.7 or less, and even more preferably 0.5 or less.
- the washing method of this embodiment may have other processes than the washing process, the rinsing process, and the dewatering process.
- Other processes include, for example, a drainage process, a drying process, and the like.
- the draining step is a step of draining the washing liquid that has come into contact with the textile product from the washing tub of the washing machine. By including the drainage step, the cleaning liquid adhering to the textile can be removed. Note that the draining process is defined as the process from the start of discharging the cleaning liquid to the completion of the discharging of the cleaning liquid.
- the drying step is a step of heating and drying the textile product after the dehydration step. By including the drying process, the moisture adhering to the textile product can be more reliably removed.
- the drying process may be performed inside the washing machine, or the textile product may be taken out of the washing machine and air-dried, or may be performed in a bathroom equipped with a dryer or outdoors.
- the washing method of the present invention contains the (A) component and the (B) component, and the concentration of the (A) component is 30 to 200 ppm. It has good rinsability due to its small amount of water, and can exhibit sufficient detergency even when the rinsing process is simplified. In addition, the washing method of the present invention is excellent in preventing redeposition. Therefore, the washing method of the present invention can omit the rinsing step that is essential in conventional washing.
- AE (7EO) Polyoxyethylene alkyl ether (7EO), a product obtained by adding 7 moles of ethylene oxide to a natural alcohol.
- R 1 is a linear alkyl group having 12 carbon atoms and a linear alkyl group having 14 carbon atoms
- -X- is -O-
- R 2 is a hydrogen atom
- AE (6EO) polyoxyethylene alkyl ether (6EO), a product obtained by adding 6 moles of ethylene oxide to a natural alcohol.
- R 1 is a linear alkyl group having 12 carbon atoms and a linear alkyl group having 14 carbon atoms
- -X- is -O-
- R 2 is a hydrogen atom
- Softanol 1 mol of a secondary alcohol to which 12 mol of ethylene oxide is added.
- R 1 is an alkyl group having 12 to 14 carbon atoms
- R 2 is a hydrogen atom
- -X- is -O-
- the carbon atom of R 1 to which X is bonded is a secondary carbon atom
- m is 12, compounds in which n is 0;
- ⁇ (A2) component> ⁇ LAS: Sodium linear alkylbenzene sulfonate, trade name “Lipon (registered trademark) LS-250”, manufactured by Lion Corporation.
- ⁇ AES polyoxyethylene alkyl ether sulfate (polyoxyethylene alkyl ether sulfate ester salt.
- the alkyl group is a linear alkyl group having 12 and 14 carbon atoms, the average number of added moles of EO is 2, and the sulfate salt is A compound that is a sodium ion, manufactured by PT. Kao Indonesia Chemicals, trade name “EMAL 270”).
- AEPS monoethanolamine salt of polyoxyethylene polyoxypropane-1,2-diylalkyl ether sulfate.
- IOS a salt of internal olefin sulfonic acid, a compound synthesized by the method described in Example 7 of JP-A-2001-247534.
- CP7 Copolymer sodium salt of acrylic acid and maleic acid (molar ratio of acrylic acid to maleic acid: 60:40), trade name "Sokalan CP7” manufactured by BASF, weight average molecular weight 50,000.
- CP9 Copolymer sodium salt of a hydrocarbon having 4 to 12 carbon atoms and maleic acid, manufactured by BASF, trade name "Sokalan CP9", weight average molecular weight 12,000.
- PA30CL Polyacrylic acid, manufactured by BASF, trade name "Sokalan PA30CL”, weight average molecular weight 8000.
- Daicel CMC1260 Carboxymethyl cellulose, manufactured by Daicel Miraise Co., Ltd., trade name "Daicel CMC1260”.
- Daicel SP500 Hydroxyethyl cellulose, manufactured by Daicel Miraise Co., Ltd., trade name "HEC Daicel SP500”.
- ⁇ Optional component> coconut fatty acid: manufactured by NOF Corporation, trade name "coconut fatty acid”.
- POE-modified silicone Polyether-modified silicone, manufactured by Dow Corning Toray Co., Ltd., trade name “CF1188N”.
- ⁇ Silicone emulsion Shin-Etsu Chemical Co., Ltd., trade name “KM-90”.
- Ethanol trade name "specific 95-degree synthetic alcohol” manufactured by Japan Alcohol Sales Co., Ltd.
- Solfit 3-methoxy-3-methyl-1-butanol, manufactured by Kuraray Co., Ltd., trade name "Solfit (registered trademark)”.
- Sodium benzoate Sodium benzoate, manufactured by Toagosei Co., Ltd.
- Citric acid chelating agent, manufactured by Lion Specialty Chemicals Co., Ltd., trade name "liquid citric acid”.
- Perfume Perfume composition A described in Tables 11 to 18 of JP-A-2002-146399.
- BHT Dibutyl hydroxytoluene, manufactured by Sumitomo Chemical Co., Ltd., trade name "SUMILZER (registered trademark) BHT-R”.
- Pigment Acid Red 138, manufactured by Nippon Kayaku Co., Ltd., trade name "Kayanol (registered trademark) Milling".
- ⁇ Production Example 1 Production of ethylene oxide adduct (10EO) of polyethyleneimine> An autoclave containing polyethyleneimine (manufactured by BASF, trade name “Lupasol FG”) and water was vacuum degassed and then replaced with nitrogen. While the autoclave was being heated, ethylene oxide corresponding to 10 mol per 1 mol of nitrogen atom was added for ethoxylation to obtain an ethylene oxide adduct of polyethyleneimine.
- polyethyleneimine manufactured by BASF, trade name “Lupasol FG”
- ⁇ Production Example 2 Production of ethylene oxide adduct (30EO) of polyethyleneimine> An autoclave containing polyethyleneimine (manufactured by BASF, trade name “Lupasol FG”) and water was vacuum degassed and then replaced with nitrogen. While the autoclave was being heated, ethylene oxide corresponding to 30 mol per 1 mol of nitrogen atom was added for ethoxylation to obtain an ethylene oxide adduct of polyethyleneimine.
- a cleaning liquid was prepared by dissolving 0.5 g of the liquid cleaning agent of each example in 600 mL of tap water adjusted to 25°C. 20 mL of the washing solution of each example was placed in an Epton tube (capacity: 100 mL, barrel diameter: 25 mm), and the Epton tube was shaken by hand at 1 stroke/second 20 times. One minute after the end of shaking, the height of the foam (the height from the boundary between the foam and the washing liquid to the top surface of the foam) was read, and the rinsability was evaluated according to the following evaluation criteria. In the following evaluation criteria, S, A, and B were regarded as acceptable.
- the foam height is less than 30 mm.
- Detergency was evaluated when the rinsing process was not performed.
- wet artificial soiled cloth manufactured by Laundry Science Association, 28.3% oleic acid, 15.6% triolein, 12.2% cholesterol oleate, 2.5% liquid paraffin, 2.5% squalene , cholesterol 1.6%, gelatin 7.0%, mud 29.8%, carbon black 0.5%) was cut into a 5 cm x 5 cm square.
- a Terg-O-tometer manufactured by UNITED STATES TESTING was used as a cleaning tester.
- washing liquid one prepared by adding 750 ⁇ L (0.75 mL) of the liquid detergent of each example to 900 mL of water and stirring for 30 seconds was used. 900 mL of the cleaning liquid, 10 sheets of the soiled cloth, and the washed knitted cloth were put into the washing tester, and after adjusting the bath ratio (washing water/total mass of the cloth to be washed) to 20 times, the speed was 120 rpm. , 15° C. for 10 minutes. After that, it was transferred to a two-tank washing machine (manufactured by Toshiba Corporation, product name “VH-30S”), dehydrated for 1 minute, and then air-dried.
- a two-tank washing machine manufactured by Toshiba Corporation, product name “VH-30S”
- the reflectance is calculated for each of the dirty cloth before washing, the dirty cloth after washing, and the unsoiled cloth (here, unsoiled cloth means the original white cloth (original cloth) without dirt). It was measured with a color difference meter (manufactured by Nippon Denshoku Co., Ltd., product name "SE200 type”), and the cleaning rate (%) was determined by the following formula (i).
- Washing rate (%) (K/S of dirty cloth before washing - K/S of dirty cloth after washing) / (K/S of dirty cloth before washing - K/S of unsoiled cloth ) ⁇ 100 (i)
- K / S is (1-R / 100) 2 / (2R / 100)
- R is the dirty cloth before washing
- the dirty cloth after washing or the unsoiled cloth represents the reflectance (%) of K is the extinction coefficient
- S is the scattering coefficient
- R is the absolute reflectance.
- the average value of the cleaning rate of 10 soiled cloths was obtained. The obtained average values were evaluated according to the following evaluation criteria. In the following evaluation criteria, A and B were regarded as acceptable. "Evaluation criteria" A: Cleaning rate is 50% or more.
- B Cleaning rate is 45% or more and less than 50%.
- C Cleaning rate is 40% or more and less than 45%.
- D The cleaning rate is less than 40%.
- Wet artificially contaminated cloth Contaminated cloth manufactured by the Laundry Science Association (28.3% oleic acid, 15.6% triolein, 12.2% cholesterol oleate, 2.5% liquid paraffin, 2.5% squalene, 20 sheets of cloth stained with a composition of 1.6% cholesterol, 7.0% gelatin, 29.8% mud, and 0.5% carbon black (mass ratio).
- Skin shirt A BVD skin shirt (LL size, manufactured by Fujibo Holdings Co., Ltd.) cut finely (about 3 cm x 3 cm).
- Washing step 900 mL of 3° DH hard water at 25°C was placed in a Terg-o-tometer (manufactured by UNITED STATES TESTING), 750 ⁇ L of the detergent composition was added thereto, and then the items to be washed were added. . After that, 3° DH hard water was added to adjust the bath ratio to 30 times, and washed at 120 rpm and 25° C. for 10 minutes.
- Drying process After dehydrating the washed object for 1 minute, only the restaining determination cloth (cotton cloth) was taken out, sandwiched between filter papers, and dried with an iron.
- Examples 1 to 29, Comparative Examples 1 to 4 The blending amounts of each component were adjusted as shown in Tables 1 to 4, and liquid detergents of Examples 1 to 29 and Comparative Examples 1 to 4 were prepared according to the following procedure.
- the components (A) and (B) were mixed with water until uniform, then optional components were added and thoroughly stirred to obtain a liquid detergent.
- the blending amount (% by mass) of each component is the ratio to the total mass of the liquid detergent, and unless otherwise specified, the value is shown in terms of pure content. "-" in the table indicates that the component is not contained.
- “Appropriate amount” means that the pH adjuster is blended so that the pH of the liquid detergent at 25° C. becomes the value shown in Tables 1-4.
- “Balanced” means that water is blended so that the total blending amount (% by mass) of all compounding components contained in the liquid detergent of each example is 100% by mass. That is, the blending amount of water is the remainder obtained by subtracting the total blending amount (in terms of pure content) of the blending components other than water from the total mass of the liquid cleaning agent.
- the rinsability, detergency and anti-soil redeposition properties of the liquid detergent of each example were evaluated by the methods described above. Results are shown in the table.
- Examples 1 to 29 to which the present invention was applied were excellent in rinsability, detergency and anti-soil redeposition.
- Comparative Example 1 containing no component (A) was inferior in detergency and anti-soil redeposition property.
- Comparative Example 2 in which the concentration of component (A) in the cleaning liquid was less than 30 ppm, was inferior in detergency and anti-soil redeposition properties.
- Comparative Example 3 in which the concentration of component (A) in the cleaning solution was over 200 ppm, was inferior in rinsability.
- Comparative Example 4 containing no component (B) was inferior in detergency and anti-soil redeposition properties.
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Abstract
Description
本願は、2021年10月1日に日本に出願された特願2021-162976号に基づき優先権を主張し、その内容をここに援用する。
例えば、特許文献1には、特定のアニオン界面活性剤と、ポリアルキレンアミンのアルキレンオキシド付加体を特定量と、特定の脂肪酸又はその塩と、特定のノニオン界面活性剤とを含む繊維製品用液体洗浄剤組成物を用いた洗濯方法が開示されている。特許文献1に記載の発明によれば、繊維製品に付着した汚れが洗浄液で落ちて他の繊維製品へ付着することを防止する機能(再汚染防止性)及び洗浄液の泡立ちを抑制し、すすぎの時間を短縮する機能(抑泡性、すすぎ性)の向上が図られている。
例えば、脱水後に泡を感知すると自動注水が始まりすすぎ工程に移るように設定された洗濯機では、すすぎ工程後でもなお泡を感知すると、すすぎの自動延長が始まる。そのため、すすぎ工程を簡略化又は不要にするためには、泡立ち量を抑えることが求められる。
また、すすぎ回数やすすぎ水量を低減すると、被洗物から一度除去された汚れが、再度、被洗物に付着してしまい、その結果、充分な洗浄力が得られない場合がある。したがって、洗濯方法には、すすぎ回数の低減や、すすぎに必要なすすぎ水量を低減した場合でも、充分な洗浄力が得られることも必要である。
[1]洗浄液を繊維製品に接触させる洗浄工程を有し、かつ、前記洗浄工程の後にすすぎ工程を要しない、繊維製品の洗濯方法であって、
前記洗浄液は、(A)成分:界面活性剤と、(B)成分:高分子有機分散剤と、を含有し、
前記(A)成分の濃度が、前記洗浄液の総質量に対して30~200ppmである、洗濯方法。
[2]前記洗浄液における前記(A)成分の濃度が、前記洗浄液の総質量に対して30~150ppmである、[1]に記載の洗濯方法。
[3]前記洗浄液における前記(B)成分/前記(A)成分で表される質量比が0.01~10である、[1]又は[2]に記載の洗濯方法。
[4]前記(B)成分がアルコキシル化ポリアルキレンイミン、ポリアクリル酸系ポリマー及びカルボキシメチルセルロース系ポリマーから選ばれる1種以上である、[1]~[3]のいずれかに記載の洗濯方法。
本発明の洗濯方法で用いる洗浄液は、(A)成分と(B)成分とを含有する水性液である。水性液は、水溶液及び水分散液の少なくとも一方を含む概念である。
(A)成分は、非石鹸系界面活性剤である。“非石鹸系界面活性剤”とは、高級脂肪酸又はその塩(いわゆる石鹸)を除く界面活性剤である。“高級脂肪酸”とは、炭素数8~24の飽和又は不飽和脂肪酸である。すなわち、(A)成分は、炭素数8~24の飽和又は不飽和脂肪酸及びその塩を除く界面活性剤である。
(A)成分は、洗浄液に洗浄力を付与する成分である。(A)成分は、1種を単独で用いてもよく、2種以上を併用してもよい。
(A)成分としては、ノニオン界面活性剤、非石鹸系アニオン界面活性剤、カチオン界面活性剤、両性界面活性剤、半極性界面活性剤等が挙げられる。
(A)成分は、後述の(A1)成分及び(A2)成分の一方又は両方を含むことが好ましい。
(A1)成分は、ノニオン界面活性剤である。
(A1)成分は、従来、衣料用等の洗浄剤組成物に用いられている
ノニオン界面活性剤であればよい。
(A1)成分としては、例えば、ポリオキシアルキレン型ノニオン界面活性剤、アルキルフェノール、高級アミン等のアルキレンオキシド付加体、ポリオキシエチレンポリオキシプロピレンブロックコポリマー、脂肪酸アルカノールアミン、脂肪酸アルカノールアミド、多価アルコール脂肪酸エステル又はそのアルキレンオキシド付加体、多価アルコール脂肪酸エーテル、アルキル(又はアルケニル)アミンオキシド、硬化ヒマシ油のアルキレンオキシド付加体、糖脂肪酸エステル、N-アルキルポリヒドロキシ脂肪酸アミド、アルキルグリコシド等が挙げられる。
本明細書において、“高級”とは、炭素数8~24の有機化合物を意味する。
(A1)成分としては、洗浄力に優れることから、ポリオキシアルキレン型ノニオン界面活性剤が好ましい。
(A1)成分は、1種を単独で用いてもよく、2種以上を併用してもよい。
R1-X-[(EO)m/(PO)n]-R2・・・(a1)
式(a1)中、R1は炭素数6~22の炭化水素基であり、Xは、2価の連結基であり、R2は水素原子、炭素数1~6のアルキル基又は炭素数2~6のアルケニル基であり、EOはオキシエチレン基を表し、POはオキシプロピレン基を表し、mはEOの平均繰り返し数を表し、3~20の数であり、nはPOの平均繰り返し数を表し、0~6の数である。
[(EO)m/(PO)n]は、EOとPOのランダム鎖でもブロック鎖でもよいことを示す。平均繰り返し数は、ガスクロマトグラフィー等によって測定することができる。
式(a1)において、-X-としては、-O-、-COO-、-CONH-等が挙げられる。-X-は、洗浄力の向上効果に優れる点から、-O-又は-COO-が好ましい。
式(a1)におけるR2がアルキル基の場合、R2の炭素数は、1~6であり、1~3が好ましい。R2がアルケニル基の場合、R2の炭素数は、2~6であり、2~3が好ましい。R2としては、水素原子が好ましい。
nが1以上の場合、すなわち、化合物(a1)がEO及びPOを有する場合、EO及びPOの付加方法は特に限定されず、例えば、ランダム付加方法でもよく、ブロック付加方法でもよい。ブロック付加方法としては、例えば、EOを付加した後、POを付加する方法、POを付加した後、EOを付加する方法、EOを付加した後、POを付加し、さらにEOを付加する方法等が挙げられる。
付加モル数分布は、ノニオン界面活性剤を製造する際の反応方法によって変動しやすい。例えば、水酸化ナトリウムや水酸化カリウム等のアルカリ触媒を用いて、EOやPOを疎水性原料に付加させた際には、EO又はPOの付加モル数分布は、比較的広い分布となる傾向にある。
特公平6-15038号公報に記載のAl3+、Ga3+、In3+、Co3+、Sc3+、La3+、Mn2+等の金属イオンを添加した酸化マグネシウム等の特定のアルコキシル化触媒を用いて、EOやPOを疎水性原料に付加させた際には、EOやPOの付加モル数分布が比較的狭い分布となる傾向にある。
-X-が-O-である場合、R1の炭素数は、10~22が好ましく、10~20がより好ましく、10~18がさらに好ましい。R2は水素原子が好ましい。
-X-が-COO-である場合、R1の炭素数は、9~21が好ましく、11~21がより好ましい。R2は、炭素数1~6のアルキル基又は炭素数2~6のアルケニル基が好ましく、炭素数1~3のアルキル基がより好ましい。
(A2)成分は、非石鹸系アニオン界面活性剤である。“非石鹸系アニオン界面活性剤”とは、高級脂肪酸又はその塩(いわゆる石鹸)を除くアニオン界面活性剤である。“高級脂肪酸”とは、炭素数8~24の飽和又は不飽和脂肪酸である。すなわち、(A2)成分は、炭素数8~24の飽和又は不飽和脂肪酸及びその塩を除くアニオン界面活性剤である。
(A2)成分としては、例えば、直鎖アルキルベンゼンスルホン酸又はその塩(LAS)、α-オレフィンスルホン酸又はその塩(AOS)、内部オレフィンスルホン酸又はその塩(IOS)、ヒドロキシアルカンスルホン酸又はその塩、ポリオキシアルキレンアルケニルエーテル硫酸エステル又はその塩、アルキル基を有するアルカンスルホン酸又はその塩、α-スルホ脂肪酸エステル又はその塩(MES)、アルキルエーテルカルボン酸又はその塩、ポリオキシアルキレンエーテルカルボン酸又はその塩、アルキルアミドエーテルカルボン酸又はその塩、アルケニルアミドエーテルカルボン酸又はその塩、アシルアミノカルボン酸又はその塩、アルキルリン酸エステル又はその塩、ポリオキシアルキレンアルキルリン酸エステル又はその塩、ポリオキシアルキレンアルキルフェニルリン酸エステル又はその塩、グリセリン脂肪酸エステルモノリン酸エステル又はその塩、ジアルキルスルホコハク酸又はその塩、モノアルキルスルホコハク酸又はその塩等が挙げられる。
(A2)成分における塩としては、例えば、ナトリウム塩、カリウム塩等のアルカリ金属塩;マグネシウム塩等のアルカリ土類金属塩;モノエタノールアミン塩、ジエタノールアミン塩等のアルカノールアミン塩等が挙げられる。
(A2)成分は、1種を単独で用いてもよく、2種以上を併用してもよい。
(A2)成分は、1種を単独で用いてもよく、2種以上を併用してもよい。
α-オレフィンスルホン酸塩や内部オレフィンスルホン酸塩としては、炭素数が10~20のものが好ましい。
ポリオキシアルキレンアルキルエーテル硫酸エステル又はその塩としては、炭素数10~20の直鎖状もしくは分岐鎖状のアルケニル基を有し、平均1~10モルのエチレンオキシドを付加したアルケニルエーテル硫酸エステル塩(すなわち、ポリオキシエチレンアルケニルエーテル硫酸エステル塩)が好ましい。
(A2)成分は、常法により製造されてもよいし、市販品を用いてもよい。
カチオン界面活性剤としては、例えば、アルキルトリメチルアンモニウム塩、ジアルキルジメチルアンモニウム塩、アルキルベンジルジメチルアンモニウム塩、アルキルピリジニウム塩等が挙げられる。これらの塩の対イオンとしては、ハロゲンイオン、アルキル硫酸イオン等が挙げられる。ハロゲンイオンとしては、フッ化物イオン、塩化物イオン、臭化物イオン、ヨウ化物イオン等が挙げられる。アルキル硫酸イオンとしては、炭素数1~3のアルキル基を有するものが好ましく、例えばメチル硫酸イオン、エチル硫酸イオン等が挙げられる。
両性界面活性剤としては、アルキルカルボキシベタイン、アルキルスルホベタイン、アルキルヒドロキシスルホベタイン、アルキルアミドベタイン、イミダゾリニウムベタイン等が挙げられる。
半極性界面活性剤としては、アミンオキシド型界面活性剤であるラウリルジメチルアミンオキシド、ラウリン酸アミドプロピルジメチルアミンオキシド等が挙げられる。
これらは、常法により製造されてもよいし、市販品を用いてもよい。
(A1)成分及び(A2)成分は、それぞれを単独で用いてもよく、併用してもよい。(A1)成分単独、もしくは、(A1)成分及び(A2)成分を併用することが好ましい。
(A1)成分及び(A2)成分を併用する場合、(A1)成分/(A2)成分で表される質量比(以下、“A1/A2比”ともいう。)は、0.1~10が好ましく、0.3~5がより好ましく、1~3がさらに好ましい。A1/A2比が上記下限値以上であると、すすぎ性が良好で、洗浄力をより高められ、上記上限値以下であると、再汚染防止性が良好である。
(B)成分は、高分子有機分散剤である。本実施形態の洗浄液は、(B)成分を含有することで洗浄作用を補助する効果を発揮する。このため、本実施形態の洗浄液は、(A)成分の濃度が従来の洗浄剤よりも低い場合でも、充分な洗浄力を発揮できる。ここで、“高分子有機分散剤”とは、(A)成分と併用することで洗浄力を発揮する、分子量1000以上の有機化合物をいう。
(B)成分は、後述の(B1)成分、(B2)成分及び(B3)成分から選ばれる1種以上を含むことが好ましい。
(B1)成分は、アルコキシル化ポリアルキレンイミンである。すなわち、(B1)成分は、ポリアルキレンイミンのアルキレンオキシド付加体である。
ポリアルキレンイミンは、例えば、下記式(b1)で表される。
NH2-R3-[N(A1)-R3]n-NH2 ・・・(b1)
式(b1)中、R3はそれぞれ独立に炭素数2~6のアルキレン基であり、A1は、水素原子又は分岐による別のポリアミン鎖であり、nは1以上の数である。ただし、前記A1がすべて水素原子であることはない。すなわち、式(b1)で表されるポリアルキレンイミンは、構造中に分岐したポリアミン鎖を有する。
R3としては、炭素数2~6の直鎖状のアルキレン基、炭素数3~6の分岐鎖状のアルキレン基が挙げられる。R3としては、炭素数2~4のアルキレン基が好ましく、炭素数2のアルキレン基がより好ましい。
ポリアルキレンイミンとしては、ポリエチレンイミン(以下、“PEI”とも記す。)、ポリプロピレンイミンが好ましく、PEIがより好ましい。PEIは、エチレンイミンを重合することによって得られ、その構造中に、1級、2級及び3級アミン窒素原子を含む分岐鎖構造を有している。
ポリアルキレンイミンは、その1分子中に活性水素を5~30個有することが好ましく、7~25個有することがより好ましく、10~20個有することがさらに好ましい。
なお、本明細書における質量平均分子量は、ポリエチレングリコール(PEG)を標準物質とし、ゲル浸透クロマトグラフィー(GPC)により求めた値を意味する。
(B1)成分としては、防臭効果の点から、ポリアルキレンイミンのエチレンオキシド付加体、ポリアルキレンイミンのエチレンオキシド-プロピレンオキシド付加体が好ましく、ポリアルキレンイミンのエチレンオキシド付加体がより好ましい。
R22は、炭素数2又は3のアルキレン基が好ましく、炭素数2のアルキレン基がより好ましい。
mは(R22O)の平均繰り返し数を表す。mはそれぞれ独立に5~40の数が好ましく、5~30の数がより好ましく、8~25の数がさらに好ましく、8~15の数が特に好ましい。
(B1)成分は、1種を単独で用いてもよく、2種以上を併用してもよい。
(B2)成分は、ポリアクリル酸系ポリマーである。本実施形態の洗浄液は、(B2)成分を含有することで、皮脂汚れに対する洗浄力をより高められる。
(B2)成分としては、例えば、ポリアクリル酸及びその塩、ポリマレイン酸及びその塩、アクリル酸-マレイン酸共重合体及びその塩、炭素数4~12の炭化水素とマレイン酸との共重合体及びその塩、並びにアクリル酸-メタクリル酸共重合体及びその塩等から選択される1種以上が挙げられる。(B2)成分としては、アクリル酸-マレイン酸共重合体及びその塩から選択される1種以上、又は炭素数4~12の炭化水素とマレイン酸との共重合体及びその塩から選択される1種以上が好ましい。
塩は、一部でも全部でもよく、塩としてはナトリウム、カリウム等のアルカリ金属塩やアルカノールアミン等の有機アミン塩が好ましい。
式(b2-1)で表されるモノマー(以下、モノマー(b2-1)ともいう)としては、例えば、アクリル酸;アクリル酸メチル、アクリル酸エチル、アクリル酸n-プロピル、アクリル酸n-ブチル等のアクリル酸エステル;メタクリル酸;メタクリル酸メチル、メタクリル酸エチル、メタクリル酸n-プロピル、メタクリル酸n-ブチル等のメタクリル酸エステル等が挙げられる。
モノマー(b2-1)は、1種を単独で用いてもよく、2種以上を併用してもよい。
式(b2-2)で表されるモノマー(以下、モノマー(b2-2)ともいう)のうち、式(b2-2)において、R9が水素原子、R8が炭素数10~30のアルキル基であるモノマー(b2-2)としては、例えば、アクリル酸デシル、アクリル酸ドデシル、アクリル酸テトラデシル、アクリル酸ヘキサデシル、アクリル酸オクタデシル、メタクリル酸デシル、メタクリル酸ドデシル、メタクリル酸テトラデシル、メタクリル酸ヘキサデシル、メタクリル酸オクタデシル等が挙げられる。式(b2-2)において、R9がカルボキシル基、R8が水素原子であるモノマー(b2-2)としては、例えば、マレイン酸、フマル酸等が挙げられる。R9がカルボキシル基、R8が水素原子であるモノマー(b2-2)としては、マレイン酸が好ましい。
モノマー(b2-2)は、1種を単独で用いてもよく、2種以上を併用してもよい。
前記架橋されたポリマーとしては、例えば、架橋剤により架橋された高分子架橋体が挙げられる。前記架橋剤としては、例えば、アリルエーテル化合物が挙げられる。前記アリルエーテル化合物としては、例えば、アリルエーテル、糖のアリルエーテル、糖アルコールのアリルエーテル等が挙げられる。前記糖としては、例えば、スクロース等が挙げられる。前記糖アルコールとしては、例えば、ペンタエリスリトール等が挙げられる。
他の繰り返し単位としては、他のモノマーから誘導された繰り返し単位が挙げられる。
他のモノマーとしては、モノマー(b2-1)及びモノマー(b2-2)と共重合可能であれば特に限定されず、アクリル酸メチル、アクリル酸エチル、メタクリル酸、メタクリル酸メチル等が挙げられる。
他のモノマーは、1種を単独で用いてもよく、2種以上を併用してもよい。
(B3)成分は、カルボキシメチルセルロース系ポリマーである。本実施形態の洗浄液は、(B3)成分を含有することで、再汚染防止性をより高められる。
(B3)成分としては、例えば、カルボキシメチルセルロース(CMC)又はその塩が挙げられる。CMCの塩としては、ナトリウム塩、カリウム塩等のアルカリ金属塩、アンモニウム塩等が挙げられ、これらの塩の混合物であってもよい。CMCの塩としては、ナトリウム塩が好ましい。
具体的には、下記式(b3-1)で表される繰り返し単位を有する高分子化合物が例示される。
本明細書におけるCMCのエーテル化度とは、グルコース環単位当たり、カルボキシメチル基又はその塩で置換された水酸基の平均個数(前記グルコース環の持つ3つの水酸基のうち、いくつがカルボキシメチル基又はその塩により置換されたかを示すもので、最大3となる)を意味する。例えば、上記式(b3-1)においては、-OR11、-OR12、-OR13のうち、R11~R13がカルボキシメチル基又はその塩で置換されているものの平均個数がエーテル化度となる。
CMCの市販品としては、このほか、日本製紙株式会社から商品名“サンローズ(登録商標)”で販売されている。サンローズ(登録商標)としては、例えば、F10LC、F600LC、F1400LC、F10MC、F150MC、F350HC、F1400MC、F1400MG等のサンローズFシリーズ;A02SH、A20SH、A200SH等のサンローズAシリーズ;SLD-F1(以上商品名)が挙げられる。
上記の中でも、CMCの市販品としては、CMCダイセル1130、1170、1180、1190、1260、HECダイセルSP400、SP500、サンローズF1400LC、F1400MC、サンローズSLD-F1が好ましく、CMCダイセル1260、HECダイセルSP500がより好ましい。
(B1)成分、(B2)成分及び(B3)成分は、それぞれを単独で用いてもよく、2種以上を併用してもよい。
溶媒としては、調製しやすさ、使用しやすさ、入手しやすさ等の観点から、水を用いることが好ましい。
使用する水は、洗浄液の経時安定性の点から、水中に溶解している重金属等の金属イオンを除いたイオン交換水、蒸留水又は精製水を用いることが好ましい。
洗浄液中、水の含有割合は、洗浄液の総質量に対して、50質量%以上が好ましく、70質量%以上がより好ましく、90質量%以上がさらに好ましい。水の含有割合が上記下限値以上であると、経時に伴う洗浄液の液安定性がより良好となる。
本実施形態の洗浄液は、(A)成分及び(B)成分以外のその他の成分(任意成分)を含有してもよい。
任意成分としては、洗浄剤組成物に通常用いられる成分が挙げられ、例えば、高級脂肪酸又はその塩、水混和性有機溶剤、キレート剤、酵素、ハイドロトロープ剤、消泡シリコーン、ソイルリリース剤、安定化剤、アルカリ剤、風合い向上剤、防腐剤、蛍光剤、移染防止剤、パール剤、酸化防止剤、抗菌剤、増粘剤、UV吸収剤、着色剤として汎用の色素又は顔料、乳濁化剤、香料、不溶粒子、pH調整剤、天然物等のエキスが挙げられる。
これらの任意成分は、1種を単独で用いてもよく、2種以上を併用してもよい。
高級脂肪酸としては、炭素数8~18の脂肪酸が好ましい。炭素数8~18の脂肪酸としては、例えば、ラウリン酸、ミリスチン酸、パルミチン酸、ステアリン酸、イソステアリン酸、ヒドロキシステアリン酸、オレイン酸等の単一脂肪酸;ヤシ油脂肪酸、牛脂脂肪酸等の混合脂肪酸が挙げられる。
組み合わせとしては、炭化水素基の炭素数が12の脂肪酸と炭化水素基の炭素数が14~18の脂肪酸との組み合わせが好ましく、炭素数12の脂肪酸と、2種以上の炭化水素基の炭素数が14~18の脂肪酸との組み合わせがより好ましい。
炭素数12の脂肪酸の質量に対する炭素数14~18の脂肪酸の質量の比である、[炭素数14~18の脂肪酸]/[炭素数12の脂肪酸]は、0.03以上1以下が好ましく、0.05以上0.8以下がより好ましく、0.06以上0.5以下がさらに好ましい。
高級脂肪酸又はその塩の市販品としては、例えば、ヤシ脂肪酸ナトリウム(ヤシ脂肪酸(日油株式会社製)を、pH調整剤である水酸化ナトリウムにより中和したもの)、C16石鹸(パルミチン酸ナトリウム(関東化学株式会社製))等が挙げられる。
本明細書において、水混和性有機溶剤とは、25℃のイオン交換水1Lに50g以上溶解する有機溶剤をいう。
水混和性有機溶剤としては、例えば、アルコール類、グリコール類、ポリグリコール類、アルキルエーテル類、フェノキシエタノール等が挙げられる。
アルコール類としては、例えば、エタノール、1-プロパノール、2-プロパノール、1-ブタノール等が挙げられる。
グリコール類としては、例えば、プロピレングリコール、ブチレングリコール、ヘキシレングリコール等が挙げられる。
ポリグリコール類としては、例えば、ジプロピレングリコール等が挙げられる。
アルキルエーテル類としては、例えば、ジエチレングリコールモノブチルエーテル(ブチルカルビトール)、ジエチレングリコールジメチルエーテル、ジエチレングリコールモノフェニルエーテル、3-メトキシ-3-メチル-1-ブタノール等が挙げられる。
これらの中でも、入手のしやすさ、液安定性、流動性等から、エタノール、プロピレングリコール、ジエチレングリコールモノブチルエーテル(ブチルカルビトール)、3-メトキシ-3-メチル-1-ブタノール、フェノキシエタノールが好ましい。
-グルタミン酸二酢酸(GLDA)、ジエチレントリアミン五酢酸(DTPA)、エチレンジアミン四酢酸、エチレンジアミンコハク酸(EDDS)、3-ヒドロキシ-2,2’-イミノジコハク酸(HIDS)、L-アスパラギン酸-N,N-二酢酸及びそれらの塩等が挙げられる。
ハイドロトロープ剤としては、パラトルエンスルホン酸又はその塩、クメンスルホン酸又はその塩、安息香酸塩、フェノキシエタノール、並びに尿素等が挙げられる。
ソイルリリース剤としては、例えば、国際公開第2014/109380号記載のアルキレンテレフタレート単位及びアルキレンイソフタレート単位からなる群から選択される少なくとも1つの単位と、オキシアルキレン単位及びポリオキシアルキレン単位からなる群から選択される少なくとも1つの単位とを有する水溶性ポリマーが挙げられる。具体的には、商品名:TexCare SRN-100(クラリアントジャパン社製、質量平均分子量:2000~3000)、商品名:TexCare SRN-300(クラリアントジャパン社製、質量平均分子量:7000)、商品名:Repel-O-Tex Crystal(ローディア社製)、商品名:Repel-O-Tex QCL(ローディア社製)として市販されている成分が挙げられる。
アルカリ剤としては、モノエタノールアミン、ジエタノールアミン、トリエタノールアミン等のアルカノールアミン等が挙げられる。
変性基を有するシリコーンオイルの市販品としては、例えば、東レ・ダウコーニング株式会社製の“CF1188N”、“BY16-878”、“BY16-891”、“BY16-893”、“FV2090-01”、“SILSTYLE104”、“SF8417”、“SF8418”、“BY16-837”、“BY16-906”、“FZ-2203”、“FZ-3789”等、信越化学工業株式会社製の“KF-877”、“KF-889”、“X-22-3939A”等、旭化成ワッカーシリコーン株式会社製の“WetSoft(登録商標)CTA”、“WetSoft(登録商標)AE200”、“WetSoft(登録商標)NE810”、“WetSoft(登録商標)NE820”、“WetSoft(登録商標)WP201”等が挙げられる。
オイル型の消泡シリコーンは、未変性のシリコーンオイル100%で構成され、シリカを含まない消泡剤である。市販品としては、SH200(東レ・ダウコーニング株式会社)が挙げられる。
オイルコンパウンド型の消泡シリコーンは、シリコーンオイルに、微粉末シリカ等の水不溶性粒子を配合した消泡剤である。市販品としては、8590 Additive、AF-8014 アンチフォーム、AC-8066 アンチフォーム、ACP-3073 アンチフォーム(以上、東レ・ダウコーニング株式会社)、KS-66(信越化学工業株式会社)等が挙げられる。
溶液型の消泡シリコーンは、シリコーンオイルをイソパラフィン等の溶剤に溶かした消泡剤である。市販品としては、KS-602A(信越化学工業株式会社)等が挙げられる。
エマルジョン型の消泡シリコーンは、シリコーンオイルコンパウンドをノニオン系の活性剤で乳化した消泡剤である。市販品としては、FSアンチフォーム93(東レ・ダウコーニング株式会社)、KM-90、KM-73、KM-7750、KM-7752(以上、信越化学工業株式会社)等が挙げられる。
自己乳化型の消泡シリコーンは、親水性の変性シリコーンオイルとオイルコンパウンドから構成される消泡剤である。市販品としては、KS-537(信越化学工業株式会社)等が挙げられる。
酸化防止剤としては、ジブチルヒドロキシトルエン(BHT)、ジスチレン化クレゾール、亜硫酸ナトリウム、亜硫酸水素ナトリウム等が挙げられる。
香料としては、例えば、特開2002-146399号公報に記載の香料成分等が挙げられる。
pH調整剤としては、硫酸、水酸化ナトリウム、水酸化カリウム、アルカノールアミン等が挙げられる。
洗浄液は、25℃におけるpHが4~10であることが好ましく、5~9であることがより好ましく、6~8であることがさらに好ましい。pHが上記数値範囲内であると、液安定性を良好に維持できる。
pHは、測定対象を25℃とし、pHメーター(例えば、東亜ディーケーケー(株)社製の“HM-30G”(製品名)を使用)等により測定される。
洗浄液の25℃における粘度は、10mPa・s以下であることが好ましい。洗浄液の粘度が上記上限値以下であると、洗浄液を繊維製品の全体に接触させやすい。
本明細書における粘度は、測定対象を25℃とし、B型(ブルックフィールド型)粘度計を用いて測定される値を意味する。
本実施形態の洗浄液は、(A)成分と、(B)成分と、必要に応じて任意成分とを、(A)成分の濃度が所定の濃度となるように、水に分散することにより得られる。
または、(A)成分と(B)成分とを含有し、(A)成分の濃度が洗浄液における濃度よりも高い洗浄剤組成物を調製し、この洗浄剤組成物を200~3000倍に希釈して、(A)成分の濃度を所定の濃度とした洗浄液を製造してもよい。
実用性の観点から、洗浄液は、上記洗浄剤組成物を水で希釈して調製することが好ましい。
なお、洗浄剤組成物は、液体洗浄剤組成物でもよいし、粉末洗浄剤組成物でもよい。
洗浄剤組成物における任意成分の含有量は、洗浄剤組成物の総質量に対して、20質量%以下が好ましく、10質量%以下がより好ましく、0質量%であってもよい。
洗浄剤組成物の各成分の含有量の合計は、100質量%を超えない。
本発明の洗濯方法は、上述した洗浄液で繊維製品を洗浄した後に、すすぎ工程を要しない洗濯方法である。
本発明の洗濯方法は、すすぎ工程を要しないため、環境負荷を軽減し、かつ、短時間で繊維製品を洗濯できる。加えて、本発明の洗濯方法は、すすぎ工程を要しないため、繊維製品に付着した香りや抗菌効果を維持でき、繊維製品に与えるダメージを低減できる。
洗浄工程において、繊維製品に洗浄液を振りかけてもよく、繊維製品を洗浄液に浸漬してもよい。
接触効率をより高めて、洗浄効果をより高められることから、洗浄工程は、繊維製品を洗浄液に浸漬する操作(浸漬操作)を有することが好ましい。
洗浄工程は、浸漬操作のみを有してもよいし、浸漬操作以外に、滴下操作、攪拌操作を有してもよい。
滴下操作は、本実施形態の洗浄液を繊維製品に滴下する操作である。洗浄液を滴下する量は、繊維製品の種類、量に応じて適宜決定される。
攪拌操作は、被洗物を浸漬した洗浄液を攪拌し、被洗物に剪断力を与える。攪拌操作は、例えば、洗濯機の洗濯槽を回転し、又は回動して行われる。攪拌操作における洗濯槽の回転速度、回転時間は、繊維製品の種類、量に応じて適宜決定される。
本明細書において、“接触時間”とは、洗浄液を繊維製品に接触させてから、繊維製品を洗浄液から取出すまでの時間、又は、後述する脱水工程を開始するまでの時間をいう。
また、該繊維製品の素材については、特に限定されず、例えば、天然繊維、合成繊維、半合成繊維、再生繊維、又はこれらの各種繊維の混紡品、混織品もしくは混編品等が挙げられる。
天然繊維としては、例えば、綿、ウール、麻等が挙げられる。
合成繊維としては、例えば、ポリエステル、ナイロン、アクリル等が挙げられる。
半合成繊維としては、例えば、アセテート等が挙げられる。
再生繊維としては、例えば、レーヨン、テンセル、ポリノジック等が挙げられる。
全自動洗濯機としては、縦型の洗濯槽を有する洗濯機、ドラム式洗濯機、乾燥機付きドラム式洗濯機等が挙げられる。
洗濯機としては、繊維製品を洗浄液に浸漬しやすことから、二槽式洗濯機、縦型の洗濯槽を有する洗濯機が好ましい。
洗濯効率をより高められることから、洗浄工程においては、繊維製品に(A)成分と(B)成分とを同時に接触させることが好ましい。
本実施形態の洗濯方法が脱水工程を有しない場合、繊維製品が浴比0.1以上で洗浄液と接触している状態までを洗浄工程というものとする。
すすぎ工程は、繊維製品をすすぎ液に接触させて、繊維製品に付着した(A)成分を低減する工程である。ここで、“すすぎ液”とは、(A)成分の濃度が30ppm未満の水性液をいう。すすぎ液中の(B)成分の濃度は、10ppm未満が好ましい。
本実施形態の洗濯方法がすすぎ工程を有する場合、すすぎ方法としては、例えば、繊維製品が浸漬されている洗浄液に水を添加してすすぎ液とし、繊維製品をすすぎ液に接触させ、繊維製品に攪拌等の機械力を加える方法が挙げられる。また、すすぎ方法としては、例えば、洗浄液と繊維製品とを分離し、分離した繊維製品を水に接触させ、繊維製品に攪拌等の機械力を加える方法が挙げられる。洗浄液と繊維製品とを分離する方法としては、例えば、洗濯槽から洗浄液を排水する方法、繊維製品を洗浄液から取り出す方法等が挙げられる。
本実施形態の洗濯方法は、すすぎ工程を有していてもよいが、省資源、省エネルギー、環境負荷軽減等の点から、すすぎ工程を有しないことが好ましい。
他の工程としては、例えば、排水工程、乾燥工程等が挙げられる。
排水工程は、繊維製品に接触させた洗浄液を、洗濯機の洗濯槽から排出する工程である。排水工程を有することで、繊維製品に付着した洗浄液を除去できる。なお、排水工程は、洗浄液の排出を開始してから、洗浄液の排出を完了するまでをいうものとする。
乾燥工程は、脱水工程後の繊維製品を加熱して乾燥する工程である。乾燥工程を有することで、繊維製品に付着した水分をより確実に除去できる。なお、乾燥工程は、洗濯機の内部で行ってもよく、洗濯機から繊維製品を取出して風乾、又は乾燥機付きの浴室や屋外で行ってもよい。
このため、本発明の洗濯方法は、従来の洗濯では必須であったすすぎ工程を省略できる。
各実施例及び比較例で使用した原料、測定・評価方法は、以下の通りである。
<<(A)成分>>
<(A1)成分>
・LMAO:ポリオキシエチレンアルキルエーテル(ライオンケミカル株式会社製、商品名“LMAO-90”、式(a1)中、R1が炭素数12の直鎖状のアルキル基(C12)及び炭素数14の直鎖状のアルキル基(C14)であり(質量比でC12:C14=75:25)、-X-は、-O-であり、酸素原子に結合するR1の炭素原子は第一級炭素原子であり、R2が水素原子であり、mが15であり、nが0である化合物)。
・AE(7EO):ポリオキシエチレンアルキルエーテル(7EO)、天然アルコールに7モル相当のエチレンオキシドを付加したもの。前記式(a1)において、R1が炭素数12の直鎖アルキル基及び炭素数14の直鎖アルキル基、-X-が-O-、R2が水素原子、m=7、n=0である化合物。
・AE(6EO):ポリオキシエチレンアルキルエーテル(6EO)、天然アルコールに6モル相当のエチレンオキシドを付加したもの。前記式(a1)において、R1が炭素数12の直鎖アルキル基及び炭素数14の直鎖アルキル基、-X-が-O-、R2が水素原子、m=6、n=0である化合物。
・MEE:脂肪酸メチルエステルエトキシレート(ライオンケミカル株式会社製、商品名“CEAO-90”、脂肪酸の炭素数12~14、EOの平均付加モル数15)、前記式(a1)において、R1が炭素数11の直鎖アルキル基及び炭素数13の直鎖アルキル基、-X-が-COO-、Xが結合するR1の炭素原子が第二級炭素原子であり、R2がメチル基、m=15、n=0である化合物。
・EPノニオン:天然アルコール(質量比で炭素数12アルコール/炭素数14アルコール=7/3)に、8モルのエチレンオキシド、2モルのプロピレンオキシド、8モルのエチレンオキシドの順にブロック付加させて得られたノニオン界面活性剤。式(a1)で、R1が、炭素数12のアルキル基及び炭素数14のアルキル基、-X-が-O-、R2が水素原子、m=8、n=2、m’=8である化合物(m’は、mとは異なるEOの平均繰り返し数を表す。)。
・ソフタノール:第二級アルコール1モルに、12モル相当のエチレンオキシドを付加したもの。式(a1)において、R1が炭素数12~14のアルキル基、R2が水素原子、-X-が-O-、Xが結合するR1の炭素原子が第二級炭素原子、mが12、nが0である化合物。
・LAS:直鎖アルキルベンゼンスルホン酸ナトリウム、商品名“ライポン(登録商標)LS-250”、ライオン株式会社製。
・AES:ポリオキシエチレンアルキルエーテル硫酸塩(ポリオキシエチレンアルキルエーテル硫酸エステル塩。アルキル基が炭素数12及び14の直鎖状のアルキル基、EOの平均付加モル数が2、硫酸塩の塩がナトリウムイオンである化合物。PT.Kao Indonesia Chemicals社製、商品名“EMAL 270”)。
・AEPS:ポリオキシエチレンポリオキシプロパン-1,2-ジイルアルキルエーテル硫酸エステルのモノエタノールアミン塩。
・IOS:内部オレフィンスルホン酸の塩、特開2001-247534号公報の実施例7に記載された方法により合成された化合物。
<(B1)成分>
・PEI(10EO):アルコキシル化ポリアルキレンイミン、下記製造例1で得られるポリエチレンイミンのエチレンオキシド付加体(ポリエチレンイミンが1分子中に有する活性水素の数:10個、活性水素1原子に対するエチレンオキシドの平均付加モル数:10)。
・PEI(20EO):アルコキシル化ポリアルキレンイミン、ポリエチレンイミンのエチレンオキシド付加体(BASF社製、商品名“Sokalan HP20”、ポリエチレンイミンが1分子中に有する活性水素の数:20個、活性水素1原子に対するエチレンオキシドの平均付加モル数:20、質量平均分子量14500)。
・PEI(30EO):アルコキシル化ポリアルキレンイミン、下記製造例2で得られるポリエチレンイミンのエチレンオキシド付加体(ポリエチレンイミンが1分子中に有する活性水素の数:30個、活性水素1原子に対するエチレンオキシドの平均付加モル数:30)。
・CP7:アクリル酸とマレイン酸との共重合体ナトリウム塩(アクリル酸とマレイン酸とのモル比60:40)、BASF社製、商品名“Sokalan CP7”、質量平均分子量50000。
・CP9:炭素数4~12の炭化水素とマレイン酸との共重合体ナトリウム塩、BASF社製、商品名“Sokalan CP9”、質量平均分子量12000。
・PA30CL:ポリアクリル酸、BASF社製、商品名“Sokalan PA30CL”、質量平均分子量8000。
・ダイセルCMC1260:カルボキシメチルセルロース、ダイセルミライズ株式会社製、商品名“ダイセルCMC1260”。
・ダイセルSP500:ヒドロキシエチルセルロース、ダイセルミライズ株式会社製、商品名“HECダイセルSP500”。
・ヤシ脂肪酸:日油株式会社製、商品名“椰子脂肪酸”。
・POE変性シリコーン:ポリエーテル変性シリコーン、東レ・ダウコーニング株式会社製、商品名“CF1188N”。
・シリコーンエマルジョン:信越化学工業株式会社製、商品名“KM-90”。
・エタノール:日本アルコール販売株式会社製、商品名“特定95度合成アルコール”。・ソルフィット:3-メトキシ-3-メチル-1-ブタノール、株式会社クラレ製、商品名“ソルフィット(登録商標)”。
・安息香酸Na:安息香酸ナトリウム、東亞合成株式会社製。
・クエン酸:キレート剤、ライオン・スペシャリティ・ケミカルズ株式会社製、商品名“液体クエン酸”。
・香料:特開2002-146399号公報の表11~18に記載の香料組成物A。
・BHT:ジブチルヒドロキシトルエン、住友化学株式会社製、商品名“SUMILZER(登録商標) BHT-R”。
・色素:アシッドレッド138、日本化薬株式会社製、商品名“カヤノール(登録商標)ミーリング”。
・NaOH:水酸化ナトリウム、東亞合成株式会社製。
・pH調整剤:硫酸、水酸化ナトリウム、いずれも東亞合成株式会社製。
<水>
・水:精製水。
ポリエチレンイミン(BASF社製、商品名“Lupasol FG”)及び水を入れたオートクレーブを真空脱気した後に窒素置換した。オートクレーブを加熱しながら窒素原子1モル当り10モルに相当するエチレンオキシドを添加してエトキシ化させ、ポリエチレンイミンのエチレンオキシド付加体を得た。
ポリエチレンイミン(BASF社製、商品名“Lupasol FG”)及び水を入れたオートクレーブを真空脱気した後に窒素置換した。オートクレーブを加熱しながら窒素原子1モル当り30モルに相当するエチレンオキシドを添加してエトキシ化させ、ポリエチレンイミンのエチレンオキシド付加体を得た。
<pHの測定>
各例の洗浄剤組成物(液体洗浄剤)を100mL調製し、25℃の環境下で、pHメーター(ポータブルpH/ORP/IONメーター D-73、(株)堀場製作所製)を用いて、各例の液体洗浄剤のpHを測定した。
各例の液体洗浄剤0.5gを、25℃に調温した水道水600mLに溶解して洗浄液を調製した。各例の洗浄液20mLをそれぞれエプトン管(容量100mL、胴径25mm)に入れ、エプトン管を手で1ストローク/秒で20回振とうした。
振とう終了から1分後の泡の高さ(泡と洗浄液との境界から、泡の上端面までの高さ)を読み取り、下記評価基準に従って、すすぎ性を評価した。
下記評価基準において、S、A、及びBを合格とした。
《評価基準》
S:泡の高さが30mm未満。
A:泡の高さが30mm以上70mm未満。
B:泡の高さが70mm以上120mm未満。
C:泡の高さが120mm以上150mm未満。
D:泡の高さが150mm以上。
すすぎ工程を行わない場合の洗浄力を評価した。
汚垢布として、湿式人工汚染布(財団法人洗濯科学協会製、オレイン酸28.3%、トリオレイン15.6%、コレステロールオレート12.2%、流動パラフィン2.5%、スクアレン2.5%、コレステロール1.6%、ゼラチン7.0%、泥29.8%、カーボンブラック0.5%)を5cm×5cm四方に裁断したものを用いた。
洗浄試験器として、Terg-O-tometer(UNITED STATES TESTING社製)を用いた。
洗浄液として、水900mLに対して、各例の液体洗浄剤750μL(0.75mL)を加え、30秒間撹拌して調製したものを用いた。
前記洗浄試験器に、前記洗浄液900mLと、前記汚垢布10枚と、洗浄メリヤス布を投入し、浴比(洗濯水/被洗布総質量)が20倍となるように調整した後、120rpm、15℃で10分間洗浄処理を施した。その後、二槽式洗濯機((株)東芝製、製品名“VH-30S”)に移し、1分間脱水処理を行った後、風乾させた。
洗浄前の汚垢布、洗浄後の汚垢布、及び未汚垢布(ここで未汚垢布とは、汚れを付けていない元の白布(原布)をいう)について、それぞれ反射率を色差計(日本電色(株)製、製品名“SE200型”)で測定し、下記式(i)により洗浄率(%)を求めた。
洗浄率(%)=(洗浄前の汚垢布のK/S-洗浄後の汚垢布のK/S)/(洗浄前の汚垢布のK/S-未汚垢布のK/S)×100 ・・・(i)
[式(i)中、K/Sは、(1-R/100)2/(2R/100)であり、Rは、洗浄前の汚垢布、洗浄後の汚垢布又は未汚垢布の反射率(%)を表す。Kは吸光係数、Sは散乱係数、Rは絶対反射率をそれぞれ表す。]
汚垢布10枚の洗浄率の平均値を求めた。得られた平均値を下記の評価基準に従って評価した。下記評価基準において、A及びBを合格とした。
《評価基準》
A:洗浄率が50%以上。
B:洗浄率が45%以上、50%未満。
C:洗浄率が40%以上、45%未満。
D:洗浄率が40%未満。
各例の洗浄剤組成物を用いて、以下に示す洗浄工程、乾燥工程をこの順序で3回繰り返す洗濯処理を行った。なお、被洗物(繊維製品)として、下記の綿布、湿式人工汚染布及び肌シャツを用いた。
・綿布:再汚染判定布として綿メリヤス(谷頭商店製)5cm×5cmを5枚。
・湿式人工汚染布:財団法人洗濯科学協会製の汚染布(オレイン酸28.3%、トリオレイン15.6%、コレステロールオレート12.2%、流動パラフィン2.5%、スクアレン2.5%、コレステロール1.6%、ゼラチン7.0%、泥29.8%、カーボンブラック0.5%(質量比)の組成の汚れが付着した布)を20枚。
・肌シャツ:BVD肌シャツ(LLサイズ、富士紡ホールディングス株式会社製)を細かく(3cm×3cm程度)裁断したもの。
(1)洗浄工程
Terg-o-tometer(UNITED STATES TESTING社製)内に、25℃の3°DH硬水900mLを入れ、ここに洗浄剤組成物を750μL加え、次いで、前記被洗物を入れた。その後、3°DH硬水を加えて浴比を30倍に調整し、120rpm、25℃で10分間洗浄した。
(2)乾燥工程
洗った被洗物を1分間脱水した後、再汚染判定布(綿布)のみを取り出し、濾紙に挟み、アイロンで乾燥した。反射率計(日本電色工業株式会社製、製品名:“分光式色差計SE2000”)を用い、洗濯処理前後の再汚染判定布の反射率(Z値)を測定し、下記式(ii)よりΔZを求めた。
ΔZ=(洗濯処理前のZ値)-(洗濯処理後のZ値)・・・(ii)
綿布の再汚染判定布におけるΔZについて、5枚の平均値を求め、下記評価基準に基づいて洗浄剤組成物による綿布への再汚染防止性を評価した。下記評価基準において、A及びBを合格とした。
《評価基準》
A:ΔZが4未満。
B:ΔZが4以上4.8未満。
C:ΔZが4.8以上5.5未満。
D:ΔZが5.5以上。
表1~4に記載の通り各成分の配合量を調整し、次の手順により実施例1~29、比較例1~4の液体洗浄剤を調製した。
(A)成分及び(B)成分と水を均一になるまで混合し、次いで、任意成分を添加し、充分に攪拌して液体洗浄剤を得た。
表1~4において、各成分の配合量(質量%)はすべて、液体洗浄剤の総質量に対する割合であり、指定のある場合を除き、純分換算での値を示す。表中“-”は、その成分を含有しないことを示す。
“適量”は、液体洗浄剤の25℃におけるpHが表1~4に示す値となるようにpH調整剤が配合されていることを意味する。“バランス”は、各例の液体洗浄剤に含まれる全配合成分の合計の配合量(質量%)が100質量%となるように水が配合されていることを意味する。つまり、水の配合量は、液体洗浄剤の総質量から水以外の配合成分の合計の配合量(純分換算)を除いた残部である。
各例の液体洗浄剤について、すすぎ性、洗浄力及び再汚染防止性を上記の方法で評価した。結果を表中に示す。
これに対して、(A)成分を含有しない比較例1は、洗浄力及び再汚染防止性が劣った。洗浄液中の(A)成分の濃度が30ppm未満である比較例2は、洗浄力及び再汚染防止性が劣った。洗浄液中の(A)成分の濃度が200ppm超である比較例3は、すすぎ性が劣った。(B)成分を含有しない比較例4は、洗浄力及び再汚染防止性が劣った。
Claims (4)
- 洗浄液を繊維製品に接触させる洗浄工程を有し、かつ、前記洗浄工程の後にすすぎ工程を要しない、繊維製品の洗濯方法であって、
前記洗浄液は、(A)成分:界面活性剤と、(B)成分:高分子有機分散剤と、を含有し、
前記(A)成分の濃度が、前記洗浄液の総質量に対して30~200ppmである、洗濯方法。 - 前記洗浄液における前記(A)成分の濃度が、前記洗浄液の総質量に対して30~150ppmである、請求項1に記載の洗濯方法。
- 前記洗浄液における前記(B)成分/前記(A)成分で表される質量比が0.01~10である、請求項1又は2に記載の洗濯方法。
- 前記(B)成分がアルコキシル化ポリアルキレンイミン、ポリアクリル酸系ポリマー及びカルボキシメチルセルロース系ポリマーから選ばれる1種以上である、請求項1又は2に記載の洗濯方法。
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JP2020050839A (ja) * | 2018-09-28 | 2020-04-02 | ライオン株式会社 | 繊維製品用液体洗浄剤組成物 |
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US5259984A (en) * | 1992-05-11 | 1993-11-09 | Jim Hull Associates, Inc. | Rinse-free cleansing composition |
JP2014513155A (ja) * | 2011-02-16 | 2014-05-29 | ダウ コーニング コーポレーション | 泡制御組成物 |
JP2018188785A (ja) * | 2017-05-09 | 2018-11-29 | ライオン株式会社 | 繊維製品の洗濯方法および液体洗浄剤 |
JP2020050839A (ja) * | 2018-09-28 | 2020-04-02 | ライオン株式会社 | 繊維製品用液体洗浄剤組成物 |
JP7122446B1 (ja) * | 2021-09-28 | 2022-08-19 | ライオン株式会社 | 液体洗浄剤組成物 |
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