WO2022138439A1 - Liquid detergent composition for clothes - Google Patents

Liquid detergent composition for clothes Download PDF

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Publication number
WO2022138439A1
WO2022138439A1 PCT/JP2021/046491 JP2021046491W WO2022138439A1 WO 2022138439 A1 WO2022138439 A1 WO 2022138439A1 JP 2021046491 W JP2021046491 W JP 2021046491W WO 2022138439 A1 WO2022138439 A1 WO 2022138439A1
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WO
WIPO (PCT)
Prior art keywords
clothing
liquid detergent
detergent composition
component
mass
Prior art date
Application number
PCT/JP2021/046491
Other languages
French (fr)
Japanese (ja)
Inventor
佐知子 吉岡
麻衣 開
優 美野輪
仁 石塚
Original Assignee
花王株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 花王株式会社 filed Critical 花王株式会社
Publication of WO2022138439A1 publication Critical patent/WO2022138439A1/en

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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
    • C11D1/02—Anionic 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
    • 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
    • C11D1/29—Sulfates of polyoxyalkylene ethers
    • 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
    • C11D3/02—Inorganic compounds ; Elemental compounds
    • C11D3/04—Water-soluble compounds
    • 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
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
    • D06M11/07—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with halogens; with halogen acids or salts thereof; with oxides or oxyacids of halogens or salts thereof
    • D06M11/11—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with halogens; with halogen acids or salts thereof; with oxides or oxyacids of halogens or salts thereof with halogen acids or salts thereof
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
    • D06M11/51—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with sulfur, selenium, tellurium, polonium or compounds thereof
    • D06M11/55—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with sulfur, selenium, tellurium, polonium or compounds thereof with sulfur trioxide; with sulfuric acid or thiosulfuric acid or their salts
    • D06M11/57—Sulfates or thiosulfates of elements of Groups 3 or 13 of the Periodic System, e.g. alums

Definitions

  • the present invention relates to a liquid detergent composition for clothing and a method for cleaning clothing.
  • washing machine washing There are roughly two types of washing methods for textile products such as clothing: hand washing and washing machine washing.
  • hand-washing washing is widely used because of its detergency, economy, cultural background, and washing consciousness. Since the operator can wash the clothes while checking the degree of dirt removal, the hand-washing washing is suitable for washing not only the overall dirt attached to the fibers but also the dirt such as partial food spills.
  • a cleaning agent for example, a cleaning liquid obtained by dissolving a powdery or liquid cleaning agent in water.
  • the liquid cleaning agent can be used by directly applying it to textile products in addition to being used for preparing the cleaning liquid. For example, in hand-washing, it is possible to wash by applying a liquid detergent to a portion where stains on the textile product are conspicuous during the work.
  • Japanese Patent Application Laid-Open No. 2016-503833 contains a surfactant system of about 5% by weight to about 20% by weight thereof, which is a liquid detergent, and the surfactant system is made into an alkoxyl of 0.20 to 1.75.
  • the detergent contains an alkoxylated anionic surfactant having a degree, and the detergent has an injection viscosity of about 2500 mPa ⁇ s to about 6000 mPa ⁇ s at 20 ° C., and the ratio of the medium shear viscosity to the high shear viscosity is about 2 to about 1.
  • the liquid detergent is disclosed. It is said that the liquid detergent can contain an electrolyte such as sodium chloride.
  • Japanese Patent Application Laid-Open No. 2009-120664 describes a surfactant composition obtained by mixing a predetermined ether sulfate ester salt containing an ethyleneoxy group and a predetermined ether sulfate ester salt containing an alkyleneoxy group having 3 or 4 carbon atoms. The thing is disclosed. It is said that the surfactant composition can further contain an inorganic salt such as sodium chloride.
  • International Publication No. 2017/0690117 contains (A) a specific ⁇ -sulfo fatty acid alkyl ester salt, (B) an anionic surfactant other than (A), and (C) a betaine-type amphoteric surfactant.
  • the liquid detergent to be used is disclosed. It is said that the liquid detergent can further contain a water-soluble inorganic salt such as magnesium sulfate.
  • Japanese Unexamined Patent Publication No. 2003-73698 describes a detergent composition for coating material containing 20 to 60% by mass of a surfactant and having a viscosity of 10 to 1000 mPa ⁇ s at 20 ° C., wherein the composition is 100% by mass.
  • a detergent composition for coating for clothing in which the viscosity at 20 ° C. increases by 5% or more when 10 parts by mass of water is added to the portion.
  • the liquid detergent can be washed by applying the liquid detergent to a place where stains on the textile product are conspicuous during the hand washing operation.
  • the present invention provides a liquid detergent composition for clothing, which has a viscosity excellent in handleability and exhibits more excellent detergency, particularly excellent detergency against oil stains derived from food.
  • the present invention is a garment containing (a) a surfactant [hereinafter referred to as (a) component] in an amount of 5% by mass or more and 30% by mass or less, (b) an inorganic salt [hereinafter referred to as a component (b)], and water.
  • Liquid detergent composition for The viscosity of the diluted product obtained by diluting the composition with 0.4 times water on a volume basis at 30 ° C. exceeded 1000 mPa ⁇ s.
  • the present invention relates to a liquid detergent composition for clothing, wherein the viscosity of the diluted product (30 ° C.) is at least twice the viscosity of the composition before dilution (30 ° C.).
  • the present invention also relates to a method for washing clothes, wherein the clothes are washed with the liquid detergent composition for clothes of the present invention.
  • a liquid detergent composition for clothing which has a viscosity excellent in handleability and exhibits more excellent detergency, particularly excellent detergency against oil stains derived from food. ..
  • detergency means detergency against oil stains derived from food unless otherwise specified.
  • low viscosity is easier to handle when removing the liquid detergent from the container or putting it in the washing machine.
  • the liquid cleaner is usually diluted with water to reduce its viscosity and disperse in water, reducing the concentration of the liquid cleaner present on the surface of the stain.
  • the liquid detergent composition for clothing of the present invention has a high viscosity by diluting, so that it adheres highly to stains, delays dispersion in water, and enables long-term contact with stains at a high concentration, resulting in high cleaning. It is presumed that it exerts power.
  • Embodiment for carrying out the invention (a)
  • the component is a surfactant.
  • the component (a) include one or more surfactants selected from anionic surfactants, nonionic surfactants, amphoteric surfactants, and cationic surfactants.
  • the liquid detergent composition for clothing of the present invention preferably contains an anionic surfactant as the component (a).
  • a surfactant other than the anionic surfactant can be contained, and the surfactant other than the anionic surfactant is preferably a surfactant selected from a nonionic surfactant and an amphoteric surfactant. ..
  • the liquid detergent composition for clothing of the present invention contains the component (a) in an amount of 5% by mass or more, preferably 7% by mass or more, more preferably 10% by mass or more, and 30. It is contained in an amount of% by mass or less, preferably 25% by mass or less, and more preferably 20% by mass or less.
  • the blending amount of each component such as the component (a) when preparing the liquid detergent composition for clothing of the present invention can be regarded as the respective content.
  • the liquid detergent composition for clothing of the present invention contains an anionic surfactant as a component (a), and the proportion of the anionic surfactant in the component (a) is 80% by mass. It is preferable that the content is 85% by mass or more, 90% by mass or more, and 100% by mass or less, and this ratio may be 100% by mass.
  • the liquid detergent composition for clothing of the present invention contains anionic surfactant, preferably 5% by mass or more, more preferably 10% by mass or more, and preferably 25% by mass or less, more preferably, from the viewpoint of detergency. Contains 20% by mass or less.
  • the liquid detergent composition for clothing of the present invention preferably contains a polyoxyalkylene alkyl ether sulfate ester or a salt thereof (hereinafter referred to as AES) as a component (a).
  • AES polyoxyalkylene alkyl ether sulfate ester or a salt thereof
  • Examples of the oxyalkylene group of AES include an oxyethylene group and an oxypropylene group.
  • the average number of moles of oxyalkylene groups added to AES is preferably 1 or more and 4 or less.
  • the alkyl group of AES preferably has 8 or more carbon atoms, more preferably 10 or more carbon atoms, and more preferably 18 or less carbon atoms, and more preferably 16 or less carbon atoms.
  • the AES is a salt, an alkali metal salt is preferable, and a sodium salt is more preferable.
  • the liquid detergent composition for clothing of the present invention contains AES as a component (a), and the proportion of AES in the component (a) is 80% by mass or more, further 85% by mass or more. Further, it is preferably 90% by mass or more and 100% by mass or less, and this ratio may be 100% by mass.
  • the liquid detergent composition for clothing of the present invention contains AES, preferably 5% by mass or more, more preferably 10% by mass or more, and preferably 25% by mass or less, more preferably 20% by mass, from the viewpoint of detergency and viscosity. Contains less than mass.
  • the liquid detergent composition for clothing of the present invention contains an inorganic salt as the component (b).
  • the component (b) include an inorganic sulfate and one or more inorganic salts selected from inorganic chlorides.
  • the inorganic sulfate include alkali metal sulfate and alkaline earth metal sulfate.
  • the alkali metal sulfate salt include sodium sulfate.
  • the alkaline earth metal sulfate salt include magnesium sulfate.
  • the inorganic chloride include alkali metal chloride.
  • the alkali metal chloride include lithium chloride and sodium chloride.
  • the liquid detergent composition for clothing of the present invention preferably contains one or more inorganic salts selected from sodium sulfate and magnesium sulfate as the component (b).
  • the liquid detergent composition for clothing of the present invention more preferably contains sodium sulfate as the component (b).
  • the liquid detergent composition for clothing of the present invention may contain sodium sulfate as a component (b) and may contain an inorganic salt other than sodium sulfate.
  • the inorganic salt other than sodium sulfate is preferably one or more inorganic salts selected from magnesium sulfate, lithium chloride, and sodium chloride.
  • the liquid cleaning agent composition for clothing of the present invention contains the component (b) in an amount of preferably 5% by mass or more, more preferably 7% by mass or more, still more preferably 8% by mass or more, still more preferably 8% by mass or more. It is contained in an amount of 10% by mass or more, more preferably 15% by mass or more, and from the viewpoint of solubility, preferably 30% by mass or less, more preferably 25% by mass or less, still more preferably 20% by mass or less.
  • the liquid detergent composition for clothing of the present invention is a mass ratio of the content of the component (a) to the content of the component (b) in the composition from the viewpoint of detergency, (a) / (b). ) Is preferably 0.5 or more, more preferably 0.7 or more, and preferably 5 or less, more preferably 2 or less.
  • the liquid detergent composition for clothing of the present invention contains water.
  • the content of water in the composition is preferably 50% by mass or more, more preferably 70% by mass or more, and preferably 90% by mass or less, more preferably 85% by mass or less.
  • the liquid detergent composition for clothing of the present invention is a liquid detergent composition for clothing, which comprises a component (a), a component (b), and a component containing water.
  • the compounding amount of the component is 5% by mass or more and 30% by mass or less in all the compounding components.
  • the viscosity of the diluted product obtained by diluting the composition with 0.4 times water on a volume basis at 30 ° C. exceeded 1000 mPa ⁇ s.
  • the liquid detergent composition for clothing may have a viscosity (30 ° C.) of the diluted product that is at least twice the viscosity (30 ° C.) of the composition before dilution.
  • the liquid detergent composition for clothing of the present invention may contain components such as a defoaming agent, an enzyme, a pH adjuster, a stabilizer, a fluorescent dye, a fragrance, a dye, a preservative, and a solvent as optional components.
  • a defoaming agent such as an enzyme, a pH adjuster, a stabilizer, a fluorescent dye, a fragrance, a dye, a preservative, and a solvent
  • the pH adjuster include an alkaline agent and an acid agent.
  • alkaline agent include alkanolamines such as monoethanolamine, and alkanolamines having 1 or more and 5 or less carbon atoms.
  • the acid agent include organic acids such as citric acid.
  • the pH adjuster is preferably used so that the pH of the composition of the present invention is in the range described later.
  • the alkaline agent is preferably an alkanolamine such as monoethanolamine from the viewpoint of detergency and stability.
  • the liquid detergent composition for clothing of the present invention contains alkanolamine and further monoethanolamine, for example, 0.2% by mass or more, further 0.4% by mass or more, and 2% by mass or less, further 1% by mass or less.
  • the acid agent is preferably an organic acid such as citric acid from the viewpoint of detergency and stability.
  • the liquid detergent composition for clothing of the present invention contains an organic acid and further citric acid, for example, 0.05% by mass or more, further 0.1% by mass or more, and 2% by mass or less, further 1% by mass or less. can do.
  • the liquid detergent composition for clothing of the present invention has a viscosity at 30 ° C. (hereinafter, also referred to as undiluted viscosity) of preferably 500 mPa ⁇ s or more, more preferably 800 mPa ⁇ s or more, and preferably 100,000 mPa ⁇ s or less. , More preferably 50,000 mPa ⁇ s or less.
  • the undiluted solution viscosity was measured with a B-type viscometer (VISCOMETER TVB-10, manufactured by Toki Sangyo Co., Ltd.) (30 ° C, M3, 12 rpm).
  • the liquid cleaning agent composition for clothing of the present invention has a viscosity at 30 ° C. of a diluted product obtained by diluting the composition with water 0.4 times by volume (hereinafter, diluted viscosity). Also called) exceeds 1000 mPa ⁇ s.
  • the dilution viscosity is preferably 5000 mPa ⁇ s or more, more preferably 10,000 mPa ⁇ s or more, and preferably 100,000 mPa ⁇ s or less, more preferably 80,000 mPa ⁇ s or less.
  • the dilution viscosity is measured by the same method as the stock solution viscosity. Ion-exchanged water is used as the water used to prepare the diluted product.
  • the liquid detergent composition for clothing of the present invention preferably has a dilution viscosity (30 ° C.) of the viscosity (30 ° C.) of the composition before dilution, that is, twice or more the viscosity of the undiluted solution. Is 2.5 times or more, more preferably 3 times or more, more preferably 5 times or more, more preferably 10 times or more, more preferably 15 times or more, and preferably 30 times or less, more preferably 25 times or less. be.
  • the undiluted solution viscosity tends to increase in value by increasing the amount of components such as a surfactant and an inorganic salt among the components to be blended. Based on this, the viscosity of the undiluted solution can be adjusted by adjusting the type and amount of components such as surfactants and inorganic salts. Further, in the liquid detergent composition for clothing of the present invention, the diluted viscosity tends to increase in value by increasing the amount of components such as a surfactant and an inorganic salt among the components to be blended. Based on this, the dilution viscosity can be adjusted by adjusting the type and amount of components such as surfactants and inorganic salts.
  • the liquid detergent composition for clothing of the present invention has a pH at 30 ° C. of preferably 8 or more, more preferably 9 or more, and preferably 11 or less, more preferably 10.5 or less. Is. This pH may be measured, for example, using a pH meter (HORIBA, Ltd., model number: D-71).
  • the liquid detergent composition for clothing of the present invention is suitable for hand washing, that is, for hand washing of clothing.
  • the liquid detergent composition for clothing of the present invention is suitable as a coating type composition.
  • the coating type may mean that it is used in a cleaning method in which it is directly applied to clothing and used for cleaning.
  • the present invention provides a method for washing clothes by washing the clothes with the liquid detergent composition for clothes of the present invention.
  • the cleaning method of the present invention after applying the liquid detergent composition for clothing of the present invention to clothing, the clothing can be washed.
  • the liquid detergent composition for clothing of the present invention can be applied to clothing and the applied portion can be washed by hand.
  • the liquid detergent composition for clothes of the present invention is diluted with water at a portion applied to the clothes. Diluting can be performed, for example, by applying the liquid cleaning agent composition for clothing of the present invention to clothing and then bringing it into contact with water, or applying the liquid cleaning agent composition for clothing of the present invention to clothing containing water. Can be done by.
  • the dilution ratio is preferably 2 times or more, and preferably 100 times or less.
  • the cleaning method using the liquid cleaning agent composition for clothing of the present invention (1) preparing a cleaning liquid using the liquid cleaning agent composition for clothing of the present invention and water, (2) the cleaning liquid Examples thereof include a method of washing clothes by immersing the clothes and applying the liquid cleaning agent composition for clothes of the present invention to the soaked clothes, and (3) washing the coated portion of the clothes by hand.
  • the cleaning method using the liquid cleaning agent composition for clothing of the present invention (1) preparing a cleaning liquid using the liquid cleaning agent composition for clothing of the present invention and water, (2). ) Immerse the clothes in the washing liquid and apply the liquid cleaning agent composition for clothes of the present invention to the soaked clothes, (3) wash the coated part of the clothes by hand, (4) the above after hand washing. Examples thereof include a method of washing clothes by bringing the clothes into contact with the washing liquid and washing the clothes by hand.
  • Examples of the hand-washing method include a method of scrubbing clothes by hand, a method of rubbing clothes together by hand, and a method of scrubbing clothes with a tool such as a brush with a flocked fiber bundle.
  • Example A liquid detergent composition for clothing was prepared using the compounding ingredients shown in Table 1, and the following evaluation was performed. The results are shown in Table 1. All of the liquid detergent compositions for clothing in the table had a pH of 9 at 30 ° C. The components used in the table are as follows.
  • the reflectance of the raw cloth before contamination and the reflectance at 460 nm before and after cleaning was measured with a color difference meter (Z-300A manufactured by Nippon Denshoku Co., Ltd.), and the detergency (%) was calculated by the following formula. ..
  • the cleaning rate of each of the four contaminated cloths was calculated, and the average value is shown in the table. In this evaluation, it is desirable that the cleaning rate is 75% or more.
  • Cleaning rate (%) 100 ⁇ [(Reflectance after cleaning-Reflectance before cleaning) / (Reflectance of raw cloth-Reflectance before cleaning)]
  • the diluted viscosity is the viscosity of a diluted product obtained by diluting 35 ml of the undiluted solution of the composition with 14 ml of ion-exchanged water at 30 ° C. Further, in the table, the diluted thickening value is a value of diluted viscosity / undiluted solution viscosity.

Abstract

The present invention is a liquid detergent composition for clothes containing (a) 5-30 mass% of a surfactant, (b) an inorganic salt, and water, wherein the viscosity at 30°C of a diluted product obtained by diluting the composition with 0.4 times of water on a volume basis exceeds 1,000 mPa·s, and the viscosity (30°C) of the diluted product is at least two times the viscosity (30°C) of the pre-diluted composition.

Description

衣料用液体洗浄剤組成物Liquid detergent composition for clothing
　本発明は、衣料用液体洗浄剤組成物、及び衣料の洗浄方法に関する。 The present invention relates to a liquid detergent composition for clothing and a method for cleaning clothing.
背景技術
　衣料等の繊維製品の洗濯方法には、大きく分けて手洗い洗濯と洗濯機洗濯の２種類がある。近年では、アジア地域の洗濯機の普及が増加する傾向にあるが、洗浄力、経済性、文化的背景、洗濯意識などから、手洗い洗濯が広く行われている。手洗い洗濯は、作業者が汚れの落ち具合を確認しながら洗浄できるため、繊維に付着した全体的な汚れだけでなく、部分的な食べこぼし等の汚れを落とす洗浄にも適している。手洗い洗濯では、多くの作業者が、洗浄剤、例えば粉末状や液体状の洗浄剤を水に溶かして得た洗浄液を用いて衣料を洗濯している。 Background technology There are roughly two types of washing methods for textile products such as clothing: hand washing and washing machine washing. In recent years, the spread of washing machines in the Asian region has tended to increase, but hand-washing washing is widely used because of its detergency, economy, cultural background, and washing consciousness. Since the operator can wash the clothes while checking the degree of dirt removal, the hand-washing washing is suitable for washing not only the overall dirt attached to the fibers but also the dirt such as partial food spills. In hand-washing, many workers wash clothes with a cleaning agent, for example, a cleaning liquid obtained by dissolving a powdery or liquid cleaning agent in water.
　液体状の洗浄剤は、洗浄液の調製に用いる他に、繊維製品に直接塗布して用いることもできる。例えば、手洗い洗濯では、作業中に、繊維製品の汚れが目立つ箇所に液体洗浄剤を塗布してもみ洗い等することができる。 The liquid cleaning agent can be used by directly applying it to textile products in addition to being used for preparing the cleaning liquid. For example, in hand-washing, it is possible to wash by applying a liquid detergent to a portion where stains on the textile product are conspicuous during the work.
　特表２０１６－５０３８３３号公報には、液体洗剤であって、その約５重量％～約２０重量％の界面活性剤系を含み、前記界面活性剤系が０．２０～１．７５のアルコキシル化度を有するアルコキシル化アニオン性界面活性剤を含み、前記洗剤は２０℃で約２５００ｍＰａ・ｓ～約６０００ｍＰａ・ｓの注入粘度を有し、中剪断粘度の高剪断粘度に対する比が約２～約１である、液体洗剤が開示されている。当該液体洗剤は、塩化ナトリウム等の電解質を含有できるとされている。 Japanese Patent Application Laid-Open No. 2016-503833 contains a surfactant system of about 5% by weight to about 20% by weight thereof, which is a liquid detergent, and the surfactant system is made into an alkoxyl of 0.20 to 1.75. The detergent contains an alkoxylated anionic surfactant having a degree, and the detergent has an injection viscosity of about 2500 mPa · s to about 6000 mPa · s at 20 ° C., and the ratio of the medium shear viscosity to the high shear viscosity is about 2 to about 1. The liquid detergent is disclosed. It is said that the liquid detergent can contain an electrolyte such as sodium chloride.
　特開２００９－１２０６６４号公報には、エチレンオキシ基を含む所定のエーテル硫酸エステル塩と炭素数３又は４のアルキレンオキシ基を含む所定のエーテル硫酸エステル塩とを混合して得られる界面活性剤組成物が開示されている。当該界面活性剤組成物は、更に、塩化ナトリウム等の無機塩を含有できるとされている。 Japanese Patent Application Laid-Open No. 2009-120664 describes a surfactant composition obtained by mixing a predetermined ether sulfate ester salt containing an ethyleneoxy group and a predetermined ether sulfate ester salt containing an alkyleneoxy group having 3 or 4 carbon atoms. The thing is disclosed. It is said that the surfactant composition can further contain an inorganic salt such as sodium chloride.
　国際公開第２０１７／０６９０１７号には、（Ａ）特定のα－スルホ脂肪酸アルキルエステル塩と、（Ｂ）（Ａ）以外のアニオン界面活性剤と、（Ｃ）ベタイン型両性界面活性剤とを含有する液体洗浄剤が開示されている。当該液体洗浄剤は、更に、硫酸マグネシウム等の水溶性無機塩を含有できるとされている。 International Publication No. 2017/0690117 contains (A) a specific α-sulfo fatty acid alkyl ester salt, (B) an anionic surfactant other than (A), and (C) a betaine-type amphoteric surfactant. The liquid detergent to be used is disclosed. It is said that the liquid detergent can further contain a water-soluble inorganic salt such as magnesium sulfate.
　特開２００３－７３６９８号公報には、界面活性剤を２０～６０質量％含有し、２０℃の粘度が１０～１０００ｍＰａ・ｓの衣料用塗布用洗浄剤組成物であって、該組成物１００質量部に対して水１０質量部を加えた時に、２０℃の粘度が５％以上増加する衣料用塗布用洗浄剤組成物が開示されている。 Japanese Unexamined Patent Publication No. 2003-73698 describes a detergent composition for coating material containing 20 to 60% by mass of a surfactant and having a viscosity of 10 to 1000 mPa · s at 20 ° C., wherein the composition is 100% by mass. Disclosed is a detergent composition for coating for clothing, in which the viscosity at 20 ° C. increases by 5% or more when 10 parts by mass of water is added to the portion.
発明の概要
　上記の通り、液体状の洗浄剤は、手洗い洗濯の作業中に、繊維製品の汚れが目立つ箇所に液体洗浄剤を塗布してもみ洗い等することができる。一般に、液体洗浄剤組成物の粘度を高くすることは、塗布洗浄には望ましいと考えられるが、一方で製造工程などでの取り扱い性を低下させることが懸念される。 Outline of the Invention As described above, the liquid detergent can be washed by applying the liquid detergent to a place where stains on the textile product are conspicuous during the hand washing operation. Generally, it is considered desirable to increase the viscosity of the liquid detergent composition for coating and cleaning, but on the other hand, there is a concern that the handleability in the manufacturing process or the like may be deteriorated.
　本発明は、取り扱い性に優れた粘度を有し、且つより優れた洗浄力、とりわけ食品由来の油汚れに対してより優れた洗浄力を示す衣料用液体洗浄剤組成物を提供する。 The present invention provides a liquid detergent composition for clothing, which has a viscosity excellent in handleability and exhibits more excellent detergency, particularly excellent detergency against oil stains derived from food.
　本発明は、（ａ）界面活性剤〔以下、（ａ）成分という〕を５質量％以上３０質量％以下、（ｂ）無機塩〔以下、（ｂ）成分という〕、及び水を含有する衣料用液体洗浄剤組成物であって、
　当該組成物を体積基準で０．４倍の水で希釈した希釈物の３０℃での粘度が１０００ｍＰａ・ｓを超え、
　前記希釈物の粘度（３０℃）が、希釈前の組成物の粘度（３０℃）の２倍以上である、衣料用液体洗浄剤組成物に関する。 The present invention is a garment containing (a) a surfactant [hereinafter referred to as (a) component] in an amount of 5% by mass or more and 30% by mass or less, (b) an inorganic salt [hereinafter referred to as a component (b)], and water. Liquid detergent composition for
The viscosity of the diluted product obtained by diluting the composition with 0.4 times water on a volume basis at 30 ° C. exceeded 1000 mPa · s.
The present invention relates to a liquid detergent composition for clothing, wherein the viscosity of the diluted product (30 ° C.) is at least twice the viscosity of the composition before dilution (30 ° C.).
　また、本発明は、前記本発明の衣料用液体洗浄剤組成物で衣料を洗浄する、衣料の洗浄方法に関する。 The present invention also relates to a method for washing clothes, wherein the clothes are washed with the liquid detergent composition for clothes of the present invention.
　本発明によれば、取り扱い性に優れた粘度を有し、且つより優れた洗浄力、とりわけ食品由来の油汚れに対してより優れた洗浄力を示す衣料用液体洗浄剤組成物が提供される。以下、洗浄力という場合は、特記しない限り、食品由来の油汚れに対する洗浄力も含む意味である。
　一般に、液体洗浄剤を容器から取り出す時や洗濯機に投入する時は、低粘度の方が扱いやすい。液体洗浄剤を汚れに塗布後、洗濯場面では液体洗浄剤は通常は水に希釈されることで粘度が低下し、水に分散され、汚れ表面に存在する液体洗浄剤の濃度が低下するが、本発明の衣料用液体洗浄剤組成物は、希釈により高粘度化することにより、汚れに高密着し、水への分散を遅らせ、長時間汚れに高濃度で接触することが可能となり、高洗浄力を発現するものと推察される。 INDUSTRIAL APPLICABILITY According to the present invention, there is provided a liquid detergent composition for clothing, which has a viscosity excellent in handleability and exhibits more excellent detergency, particularly excellent detergency against oil stains derived from food. .. Hereinafter, the term detergency means detergency against oil stains derived from food unless otherwise specified.
In general, low viscosity is easier to handle when removing the liquid detergent from the container or putting it in the washing machine. After applying the liquid cleaner to the stain, in the washing scene, the liquid cleaner is usually diluted with water to reduce its viscosity and disperse in water, reducing the concentration of the liquid cleaner present on the surface of the stain. The liquid detergent composition for clothing of the present invention has a high viscosity by diluting, so that it adheres highly to stains, delays dispersion in water, and enables long-term contact with stains at a high concentration, resulting in high cleaning. It is presumed that it exerts power.
発明を実施するための形態
　（ａ）成分は界面活性剤である。
　（ａ）成分としては、陰イオン界面活性剤、非イオン界面活性剤、両性界面活性剤、陽イオン界面活性剤から選ばれる１種以上の界面活性剤が挙げられる。
　本発明の衣料用液体洗浄剤組成物は、（ａ）成分として、陰イオン界面活性剤を含有することが好ましい。この場合、陰イオン界面活性剤以外の界面活性剤を含有することもでき、陰イオン界面活性剤以外の界面活性剤は、非イオン界面活性剤及び両性界面活性剤から選ばれる界面活性剤が好ましい。 Embodiment for carrying out the invention (a) The component is a surfactant.
Examples of the component (a) include one or more surfactants selected from anionic surfactants, nonionic surfactants, amphoteric surfactants, and cationic surfactants.
The liquid detergent composition for clothing of the present invention preferably contains an anionic surfactant as the component (a). In this case, a surfactant other than the anionic surfactant can be contained, and the surfactant other than the anionic surfactant is preferably a surfactant selected from a nonionic surfactant and an amphoteric surfactant. ..
　本発明の衣料用液体洗浄剤組成物は、洗浄力及び溶解性の観点から、（ａ）成分を、５質量％以上、好ましくは７質量％以上、より好ましくは１０質量％以上、そして、３０質量％以下、好ましくは２５質量％以下、より好ましくは２０質量％以下含有する。なお、本発明では、本発明の衣料用液体洗浄剤組成物を調製する際の（ａ）成分等の各成分の配合量をそれぞれの含有量と見なすことができる。 From the viewpoint of detergency and solubility, the liquid detergent composition for clothing of the present invention contains the component (a) in an amount of 5% by mass or more, preferably 7% by mass or more, more preferably 10% by mass or more, and 30. It is contained in an amount of% by mass or less, preferably 25% by mass or less, and more preferably 20% by mass or less. In the present invention, the blending amount of each component such as the component (a) when preparing the liquid detergent composition for clothing of the present invention can be regarded as the respective content.
　本発明の衣料用液体洗浄剤組成物は、洗浄力の観点から、（ａ）成分として、陰イオン界面活性剤を含有し、（ａ）成分中、陰イオン界面活性剤の割合が８０質量％以上、更に８５質量％以上、更に９０質量％以上、そして、１００質量％以下であることが好ましく、この割合は１００質量％であってもよい。 From the viewpoint of detergency, the liquid detergent composition for clothing of the present invention contains an anionic surfactant as a component (a), and the proportion of the anionic surfactant in the component (a) is 80% by mass. It is preferable that the content is 85% by mass or more, 90% by mass or more, and 100% by mass or less, and this ratio may be 100% by mass.
　本発明の衣料用液体洗剤組成物は、陰イオン界面活性剤を、洗浄力の観点から、好ましくは５質量％以上、より好ましくは１０質量％以上、そして、好ましくは２５質量％以下、より好ましくは２０質量以下含有する。 The liquid detergent composition for clothing of the present invention contains anionic surfactant, preferably 5% by mass or more, more preferably 10% by mass or more, and preferably 25% by mass or less, more preferably, from the viewpoint of detergency. Contains 20% by mass or less.
　本発明の衣料用液体洗浄剤組成物は、（ａ）成分として、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（以下、ＡＥＳという）を含有することが好ましい。ＡＥＳのオキシアルキレン基は、オキシエチレン基、オキシプロピレン基などが挙げられる。ＡＥＳのオキシアルキレン基の平均付加モル数は、好ましくは１以上４以下である。ＡＥＳのアルキル基は、好ましくは炭素数８以上、より好ましくは１０以上であり、更に、好ましくは炭素数１８以下、より好ましくは炭素数１６以下である。ＡＥＳが塩である場合、アルカリ金属塩が好ましく、ナトリウム塩がより好ましい。 The liquid detergent composition for clothing of the present invention preferably contains a polyoxyalkylene alkyl ether sulfate ester or a salt thereof (hereinafter referred to as AES) as a component (a). Examples of the oxyalkylene group of AES include an oxyethylene group and an oxypropylene group. The average number of moles of oxyalkylene groups added to AES is preferably 1 or more and 4 or less. The alkyl group of AES preferably has 8 or more carbon atoms, more preferably 10 or more carbon atoms, and more preferably 18 or less carbon atoms, and more preferably 16 or less carbon atoms. When the AES is a salt, an alkali metal salt is preferable, and a sodium salt is more preferable.
　本発明の衣料用液体洗浄剤組成物は、洗浄力の観点から、（ａ）成分として、ＡＥＳを含有し、（ａ）成分中、ＡＥＳの割合が８０質量％以上、更に８５質量％以上、更に９０質量％以上、そして、１００質量％以下であることが好ましく、この割合は１００質量％であってもよい。 From the viewpoint of detergency, the liquid detergent composition for clothing of the present invention contains AES as a component (a), and the proportion of AES in the component (a) is 80% by mass or more, further 85% by mass or more. Further, it is preferably 90% by mass or more and 100% by mass or less, and this ratio may be 100% by mass.
　本発明の衣料用液体洗剤組成物は、ＡＥＳを、洗浄力及び粘度の観点から、好ましくは５質量％以上、より好ましくは１０質量％以上、そして、好ましくは２５質量％以下、より好ましくは２０質量以下含有する。 The liquid detergent composition for clothing of the present invention contains AES, preferably 5% by mass or more, more preferably 10% by mass or more, and preferably 25% by mass or less, more preferably 20% by mass, from the viewpoint of detergency and viscosity. Contains less than mass.
　本発明の衣料用液体洗浄剤組成物は、（ｂ）成分として、無機塩を含有する。
　（ｂ）成分としては、無機硫酸塩、及び無機塩化物から選ばれる１種以上の無機塩が挙げられる。
　無機硫酸塩としては、硫酸アルカリ金属塩、硫酸アルカリ土類金属塩などが挙げられる。硫酸アルカリ金属塩は、硫酸ナトリウムが挙げられる。硫酸アルカリ土類金属塩は、硫酸マグネシウムが挙げられる。
　無機塩化物としては、アルカリ金属塩化物などが挙げられる。アルカリ金属塩化物は、塩化リチウム、塩化ナトリウムが挙げられる。 The liquid detergent composition for clothing of the present invention contains an inorganic salt as the component (b).
Examples of the component (b) include an inorganic sulfate and one or more inorganic salts selected from inorganic chlorides.
Examples of the inorganic sulfate include alkali metal sulfate and alkaline earth metal sulfate. Examples of the alkali metal sulfate salt include sodium sulfate. Examples of the alkaline earth metal sulfate salt include magnesium sulfate.
Examples of the inorganic chloride include alkali metal chloride. Examples of the alkali metal chloride include lithium chloride and sodium chloride.
　本発明の衣料用液体洗浄剤組成物は、（ｂ）成分として、硫酸ナトリウム及び硫酸マグネシウムから選ばれる１種以上の無機塩を含有することが好ましい。
　本発明の衣料用液体洗浄剤組成物は、（ｂ）成分として、硫酸ナトリウムを含有することがより好ましい。 The liquid detergent composition for clothing of the present invention preferably contains one or more inorganic salts selected from sodium sulfate and magnesium sulfate as the component (b).
The liquid detergent composition for clothing of the present invention more preferably contains sodium sulfate as the component (b).
　本発明の衣料用液体洗浄剤組成物は、（ｂ）成分として、硫酸ナトリウムを含有し、且つ、硫酸ナトリウム以外の無機塩を含有することができる。その場合、硫酸ナトリウム以外の無機塩は、硫酸マグネシウム、塩化リチウム、及び塩化ナトリウムから選ばれる１種以上の無機塩であることが好ましい。 The liquid detergent composition for clothing of the present invention may contain sodium sulfate as a component (b) and may contain an inorganic salt other than sodium sulfate. In that case, the inorganic salt other than sodium sulfate is preferably one or more inorganic salts selected from magnesium sulfate, lithium chloride, and sodium chloride.
　本発明の衣料用液体洗浄剤組成物は、粘度制御の観点から、（ｂ）成分を、好ましくは５質量％以上、より好ましくは７質量％以上、更に好ましくは８質量％以上、更に好ましくは１０質量％以上、更に好ましくは１５質量％以上であり、そして溶解性の観点から、好ましくは３０質量％以下、より好ましくは２５質量％以下、更に好ましくは２０質量％以下含有する。 From the viewpoint of viscosity control, the liquid cleaning agent composition for clothing of the present invention contains the component (b) in an amount of preferably 5% by mass or more, more preferably 7% by mass or more, still more preferably 8% by mass or more, still more preferably 8% by mass or more. It is contained in an amount of 10% by mass or more, more preferably 15% by mass or more, and from the viewpoint of solubility, preferably 30% by mass or less, more preferably 25% by mass or less, still more preferably 20% by mass or less.
　本発明の衣料用液体洗浄剤組成物は、洗浄力の観点から、組成物中の（ａ）成分の含有量と（ｂ）成分の含有量との質量比である、（ａ）／（ｂ）が、好ましくは０．５以上、より好ましくは０．７以上、そして、好ましくは５以下、より好ましくは２以下である。 The liquid detergent composition for clothing of the present invention is a mass ratio of the content of the component (a) to the content of the component (b) in the composition from the viewpoint of detergency, (a) / (b). ) Is preferably 0.5 or more, more preferably 0.7 or more, and preferably 5 or less, more preferably 2 or less.
　本発明の衣料用液体洗浄剤組成物は、水を含有する。組成物中の水の含有量は、好ましくは５０質量％以上、より好ましくは７０質量％以上、そして、好ましくは９０質量％以下、より好ましくは８５質量％以下である。 The liquid detergent composition for clothing of the present invention contains water. The content of water in the composition is preferably 50% by mass or more, more preferably 70% by mass or more, and preferably 90% by mass or less, more preferably 85% by mass or less.
　本発明の衣料用液体洗浄剤組成物は、（ａ）成分、（ｂ）成分、及び水を含む成分を配合してなる衣料用液体洗浄剤組成物であって、
　（ａ）成分の配合量が、全配合成分中、５質量％以上３０質量％以下であり、
　当該組成物を体積基準で０．４倍の水で希釈した希釈物の３０℃での粘度が１０００ｍＰａ・ｓを超え、
　前記希釈物の粘度（３０℃）が、希釈前の組成物の粘度（３０℃）の２倍以上である、衣料用液体洗浄剤組成物であってよい。 The liquid detergent composition for clothing of the present invention is a liquid detergent composition for clothing, which comprises a component (a), a component (b), and a component containing water.
(A) The compounding amount of the component is 5% by mass or more and 30% by mass or less in all the compounding components.
The viscosity of the diluted product obtained by diluting the composition with 0.4 times water on a volume basis at 30 ° C. exceeded 1000 mPa · s.
The liquid detergent composition for clothing may have a viscosity (30 ° C.) of the diluted product that is at least twice the viscosity (30 ° C.) of the composition before dilution.
　本発明の衣料用液体洗浄剤組成物は、任意成分として、増泡剤、酵素、ｐＨ調整剤、安定化剤、蛍光染料、香料、色素、防腐剤、溶剤などの成分を含有することができる。
　ｐＨ調整剤としては、アルカリ剤、酸剤が挙げられる。アルカリ剤としては、例えば、モノエタノールアミンなどのアルカノールアミン、更に炭素数１以上５以下のアルカノールアミンが挙げられる。酸剤としては、例えば、クエン酸などの有機酸が挙げられる。ｐＨ調整剤は、本発明の組成物のｐＨが後述する範囲となるように用いることが好ましい。ｐＨ調整剤のうちアルカリ剤としては、洗浄力と安定性の観点から、モノエタノールアミンなどのアルカノールアミンが好ましい。本発明の衣料用液体洗浄剤組成物は、アルカノールアミン、更にモノエタノールアミンを、例えば、０．２質量％以上、更に０．４質量％以上、そして、２質量％以下、更に１質量％以下含有することができる。ｐＨ調整剤のうち酸剤としては、洗浄力と安定性の観点から、クエン酸などの有機酸が好ましい。本発明の衣料用液体洗浄剤組成物は、有機酸、更にクエン酸を、例えば、０．０５質量％以上、更に０．１質量％以上、そして、２質量％以下、更に１質量％以下含有することができる。 The liquid detergent composition for clothing of the present invention may contain components such as a defoaming agent, an enzyme, a pH adjuster, a stabilizer, a fluorescent dye, a fragrance, a dye, a preservative, and a solvent as optional components. ..
Examples of the pH adjuster include an alkaline agent and an acid agent. Examples of the alkaline agent include alkanolamines such as monoethanolamine, and alkanolamines having 1 or more and 5 or less carbon atoms. Examples of the acid agent include organic acids such as citric acid. The pH adjuster is preferably used so that the pH of the composition of the present invention is in the range described later. Among the pH adjusters, the alkaline agent is preferably an alkanolamine such as monoethanolamine from the viewpoint of detergency and stability. The liquid detergent composition for clothing of the present invention contains alkanolamine and further monoethanolamine, for example, 0.2% by mass or more, further 0.4% by mass or more, and 2% by mass or less, further 1% by mass or less. Can be contained. Among the pH adjusters, the acid agent is preferably an organic acid such as citric acid from the viewpoint of detergency and stability. The liquid detergent composition for clothing of the present invention contains an organic acid and further citric acid, for example, 0.05% by mass or more, further 0.1% by mass or more, and 2% by mass or less, further 1% by mass or less. can do.
　本発明の衣料用液体洗浄剤組成物は、３０℃での粘度（以下、原液粘度ともいう）が、好ましくは５００ｍＰａ・ｓ以上、より好ましくは８００ｍＰａ・ｓ以上、そして、好ましくは１０００００ｍＰａ・ｓ以下、より好ましくは５００００ｍＰａ・ｓ以下である。原液粘度は、Ｂ型粘度計（VISCOMETER TVB-10、東機産業（株）製）（３０℃、Ｍ３、１２ｒｐｍ）で測定されたものである。 The liquid detergent composition for clothing of the present invention has a viscosity at 30 ° C. (hereinafter, also referred to as undiluted viscosity) of preferably 500 mPa · s or more, more preferably 800 mPa · s or more, and preferably 100,000 mPa · s or less. , More preferably 50,000 mPa · s or less. The undiluted solution viscosity was measured with a B-type viscometer (VISCOMETER TVB-10, manufactured by Toki Sangyo Co., Ltd.) (30 ° C, M3, 12 rpm).
　本発明の衣料用液体洗浄剤組成物は、洗浄力と溶解性の観点から、当該組成物を体積基準で０．４倍の水で希釈した希釈物の３０℃での粘度（以下、希釈粘度ともいう）が１０００ｍＰａ・ｓを超える。希釈粘度は、好ましくは５０００ｍＰａ・ｓ以上、より好ましくは１００００ｍＰａ・ｓ以上、そして、好ましくは１０００００ｍＰａ・ｓ以下、より好ましくは８００００ｍＰａ・ｓ以下である。希釈粘度は、原液粘度と同様の方法で測定されたものである。希釈物の調製に用いる水はイオン交換水を用いる。 From the viewpoint of detergency and solubility, the liquid cleaning agent composition for clothing of the present invention has a viscosity at 30 ° C. of a diluted product obtained by diluting the composition with water 0.4 times by volume (hereinafter, diluted viscosity). Also called) exceeds 1000 mPa · s. The dilution viscosity is preferably 5000 mPa · s or more, more preferably 10,000 mPa · s or more, and preferably 100,000 mPa · s or less, more preferably 80,000 mPa · s or less. The dilution viscosity is measured by the same method as the stock solution viscosity. Ion-exchanged water is used as the water used to prepare the diluted product.
　本発明の衣料用液体洗浄剤組成物は、洗浄力と溶解性の観点から、希釈粘度（３０℃）が、希釈前の組成物の粘度（３０℃）、すなわち原液粘度の２倍以上、好ましくは２．５倍以上、より好ましくは３倍以上、より好ましくは５倍以上、より好ましくは１０倍以上、より好ましくは１５倍以上、そして、好ましくは３０倍以下、より好ましくは２５倍以下である。 From the viewpoint of detergency and solubility, the liquid detergent composition for clothing of the present invention preferably has a dilution viscosity (30 ° C.) of the viscosity (30 ° C.) of the composition before dilution, that is, twice or more the viscosity of the undiluted solution. Is 2.5 times or more, more preferably 3 times or more, more preferably 5 times or more, more preferably 10 times or more, more preferably 15 times or more, and preferably 30 times or less, more preferably 25 times or less. be.
　本発明の衣料用液体洗浄剤組成物では、原液粘度は、配合する成分のうち、例えば、界面活性剤や無機塩などの成分を増量することにより、値が大きくなる傾向がある。これを踏まえて、界面活性剤や無機塩などの成分の種類や量を調整することで、原液粘度を調整することができる。
　また、本発明の衣料用液体洗浄剤組成物では、希釈粘度は、配合する成分のうち、例えば、界面活性剤や無機塩などの成分を増量することにより、値が大きくなる傾向がある。これを踏まえて、界面活性剤や無機塩などの成分の種類や量を調整することで、希釈粘度を調整することができる。 In the liquid detergent composition for clothing of the present invention, the undiluted solution viscosity tends to increase in value by increasing the amount of components such as a surfactant and an inorganic salt among the components to be blended. Based on this, the viscosity of the undiluted solution can be adjusted by adjusting the type and amount of components such as surfactants and inorganic salts.
Further, in the liquid detergent composition for clothing of the present invention, the diluted viscosity tends to increase in value by increasing the amount of components such as a surfactant and an inorganic salt among the components to be blended. Based on this, the dilution viscosity can be adjusted by adjusting the type and amount of components such as surfactants and inorganic salts.
　本発明の衣料用液体洗浄剤組成物は、洗浄力の観点から、３０℃でのｐＨが、好ましくは８以上、より好ましくは９以上、そして、好ましくは１１以下、より好ましくは１０．５以下である。このｐＨは、例えば、ｐＨメーター（株式会社堀場製作所、型番：D-71）を用いて測定されたものであってよい。 From the viewpoint of detergency, the liquid detergent composition for clothing of the present invention has a pH at 30 ° C. of preferably 8 or more, more preferably 9 or more, and preferably 11 or less, more preferably 10.5 or less. Is. This pH may be measured, for example, using a pH meter (HORIBA, Ltd., model number: D-71).
　本発明の衣料用液体洗浄剤組成物は、手洗い用、すなわち衣料の手洗い用として好適である。 The liquid detergent composition for clothing of the present invention is suitable for hand washing, that is, for hand washing of clothing.
　本発明の衣料用液体洗浄剤組成物は、塗布型の組成物として好適である。塗布型とは、衣料に直接塗布して洗浄に供する洗浄方法に使用されることを意味するものであってよい。 The liquid detergent composition for clothing of the present invention is suitable as a coating type composition. The coating type may mean that it is used in a cleaning method in which it is directly applied to clothing and used for cleaning.
　本発明により、本発明の衣料用液体洗浄剤組成物で衣料を洗浄する、衣料の洗浄方法が提供される。
　本発明の洗浄方法では、本発明の衣料用液体洗浄剤組成物を衣料に塗布した後、当該衣料を洗浄することができる。
　本発明の洗浄方法では、本発明の衣料用液体洗浄剤組成物を衣料に塗布し、塗布された箇所を手洗いすることができる。 INDUSTRIAL APPLICABILITY The present invention provides a method for washing clothes by washing the clothes with the liquid detergent composition for clothes of the present invention.
In the cleaning method of the present invention, after applying the liquid detergent composition for clothing of the present invention to clothing, the clothing can be washed.
In the cleaning method of the present invention, the liquid detergent composition for clothing of the present invention can be applied to clothing and the applied portion can be washed by hand.
　本発明の衣料の洗浄方法では、本発明の衣料用液体洗浄剤組成物が、衣料に塗布された箇所で、水で希釈されることが好ましい。希釈は、例えば、本発明の衣料用液体洗浄剤組成物を衣料に塗布した後、水を接触させる、水を含んだ衣料に本発明の衣料用液体洗浄剤組成物を塗布する、などの方法により行うことができる。希釈の倍率は、好ましくは２倍以上、そして、好ましくは１００倍以下である。 In the method for washing clothes of the present invention, it is preferable that the liquid detergent composition for clothes of the present invention is diluted with water at a portion applied to the clothes. Diluting can be performed, for example, by applying the liquid cleaning agent composition for clothing of the present invention to clothing and then bringing it into contact with water, or applying the liquid cleaning agent composition for clothing of the present invention to clothing containing water. Can be done by. The dilution ratio is preferably 2 times or more, and preferably 100 times or less.
　本発明の衣料用液体洗浄剤組成物を用いた洗浄方法の一例として、（１）本発明の衣料用液体洗浄剤組成物と水とを用いて洗浄液を調製すること、（２）前記洗浄液に衣料を浸漬し、浸漬した衣料に本発明の衣料用液体洗浄剤組成物を塗布すること、（３）前記衣料の塗布された箇所を手洗いすること、を行う衣料の洗浄方法が挙げられる。 As an example of the cleaning method using the liquid cleaning agent composition for clothing of the present invention, (1) preparing a cleaning liquid using the liquid cleaning agent composition for clothing of the present invention and water, (2) the cleaning liquid Examples thereof include a method of washing clothes by immersing the clothes and applying the liquid cleaning agent composition for clothes of the present invention to the soaked clothes, and (3) washing the coated portion of the clothes by hand.
　更に、本発明の衣料用液体洗浄剤組成物を用いた洗浄方法の他の例として、（１）本発明の衣料用液体洗浄剤組成物と水とを用いて洗浄液を調製すること、（２）前記洗浄液に衣料を浸漬し、浸漬した衣料に本発明の衣料用液体洗浄剤組成物を塗布すること、（３）前記衣料の塗布された箇所を手洗いすること、（４）手洗い後の前記衣料を前記洗浄液と接触させ、当該衣料を手洗い洗浄すること、を行う衣料の洗浄方法が挙げられる。 Further, as another example of the cleaning method using the liquid cleaning agent composition for clothing of the present invention, (1) preparing a cleaning liquid using the liquid cleaning agent composition for clothing of the present invention and water, (2). ) Immerse the clothes in the washing liquid and apply the liquid cleaning agent composition for clothes of the present invention to the soaked clothes, (3) wash the coated part of the clothes by hand, (4) the above after hand washing. Examples thereof include a method of washing clothes by bringing the clothes into contact with the washing liquid and washing the clothes by hand.
　手洗いの方法としては、衣料を手でもみ洗いする方法、衣料同士を手で擦り合わせる方法、衣料を繊維束を植毛したブラシなどの道具を用いて擦り洗いする方法などが挙げられる。 Examples of the hand-washing method include a method of scrubbing clothes by hand, a method of rubbing clothes together by hand, and a method of scrubbing clothes with a tool such as a brush with a flocked fiber bundle.
実施例
　表１に示す配合成分を用いて衣料用液体洗浄剤組成物を調製し、以下の評価を行った。結果を表１に示す。表中の衣料用液体洗浄剤組成物は、いずれも３０℃のｐＨが９であった。なお、表で用いた成分は以下のものである。
・ＥＳ（１）：ポリオキシエチレン（エチレンオキサイド平均付加モル数１）ラウリルエーテル硫酸エステルナトリウム、エマール１７０Ｊ（花王（株）製） Example A liquid detergent composition for clothing was prepared using the compounding ingredients shown in Table 1, and the following evaluation was performed. The results are shown in Table 1. All of the liquid detergent compositions for clothing in the table had a pH of 9 at 30 ° C. The components used in the table are as follows.
ES (1): Polyoxyethylene (average number of moles of ethylene oxide added) sodium lauryl ether sulfate, Emar 170J (manufactured by Kao Corporation)
＜モデル汚染布の作製＞
　モデル油として、トリオレインにスダンIIを０．１％溶解させ、着色したものを使用した。
　６ｃｍ×６ｃｍの木綿／ポリエステルブロード混紡染着布（木綿／ポリエステル比＝３５／６５　谷頭商店より購入）に、モデル油を１００μｌ塗布し、一晩静置してモデル汚染布を複数作製した。 <Making model contaminated cloth>
As a model oil, a colored triolein in which 0.1% of Sudan II was dissolved was used.
100 μl of model oil was applied to a 6 cm × 6 cm cotton / polyester broad-blend dyed cloth (cotton / polyester ratio = 35/65 purchased from Tanito Shoten) and allowed to stand overnight to prepare multiple model-contaminated cloths.
＜塗布洗浄条件＞
　モデル汚染布を４枚用い、１枚につき衣料用液体洗浄剤組成物０．２ｇを直接塗布し、１０分放置した。炭酸カルシウム換算で１７９ｍｇ／Ｌの硬水（本硬水はドイツ硬度で１０°ＤＨに相当する）１Ｌに、衣料用液体洗浄剤組成物を塗布した汚染布４枚を入れて、ターゴトメーターにて以下の条件で洗浄した。
洗浄時間５分、回転速度１００ｒｐｍ
水温３０℃
　洗浄力は、汚染前の原布、及び洗浄前後の４６０ｎｍにおける反射率を測色色差計（日本電色株式会社製　Ｚ－３００Ａ）にて測定し、次式によって洗浄率（％）を求めた。汚染布４枚の洗浄率をそれぞれ求め、その平均値を表に示した。この評価では、洗浄率が７５％以上であることが望ましい。
洗浄率（％）＝１００×［（洗浄後の反射率－洗浄前の反射率）／（原布の反射率－洗浄前の反射率）］ <Applying cleaning conditions>
Using four model-contaminated cloths, 0.2 g of a liquid detergent composition for clothing was directly applied to each cloth and left for 10 minutes. Put four contaminated cloths coated with a liquid detergent composition for clothing in 1 L of hard water of 179 mg / L in terms of calcium carbonate (this hard water is equivalent to 10 ° DH in German hardness), and use a turgotometer as follows. It was washed under the conditions of.
Cleaning time 5 minutes, rotation speed 100 rpm
Water temperature 30 ° C
For the detergency, the reflectance of the raw cloth before contamination and the reflectance at 460 nm before and after cleaning was measured with a color difference meter (Z-300A manufactured by Nippon Denshoku Co., Ltd.), and the detergency (%) was calculated by the following formula. .. The cleaning rate of each of the four contaminated cloths was calculated, and the average value is shown in the table. In this evaluation, it is desirable that the cleaning rate is 75% or more.
Cleaning rate (%) = 100 × [(Reflectance after cleaning-Reflectance before cleaning) / (Reflectance of raw cloth-Reflectance before cleaning)]
Figure JPOXMLDOC01-appb-T000001
Figure JPOXMLDOC01-appb-T000001
　表中、希釈粘度は、組成物の原液３５ｍｌをイオン交換水１４ｍｌで希釈した希釈物の３０℃の粘度である。また、表中、希釈増粘値は、希釈粘度／原液粘度の値である。 In the table, the diluted viscosity is the viscosity of a diluted product obtained by diluting 35 ml of the undiluted solution of the composition with 14 ml of ion-exchanged water at 30 ° C. Further, in the table, the diluted thickening value is a value of diluted viscosity / undiluted solution viscosity.

Claims (16)

  1. 　（ａ）界面活性剤〔以下、（ａ）成分という〕を５質量％以上３０質量％以下、（ｂ）無機塩〔以下、（ｂ）成分という〕、及び水を含有する衣料用液体洗浄剤組成物であって、
    　当該組成物を体積基準で０．４倍の水で希釈した希釈物の３０℃での粘度が１０００ｍＰａ・ｓを超え、
    　前記希釈物の粘度（３０℃）が、希釈前の組成物の粘度（３０℃）の２倍以上である、衣料用液体洗浄剤組成物。     A liquid detergent for clothing containing (a) a surfactant [hereinafter referred to as (a) component] in an amount of 5% by mass or more and 30% by mass or less, (b) an inorganic salt [hereinafter referred to as a component (b)], and water. It ’s a composition,
    The viscosity of the diluted product obtained by diluting the composition with 0.4 times water on a volume basis at 30 ° C. exceeded 1000 mPa · s.
    A liquid detergent composition for clothing, wherein the viscosity of the diluted product (30 ° C.) is at least twice the viscosity of the composition before dilution (30 ° C.).
  2. 　（ｂ）成分を５質量％以上３０質量％以下含有する、請求項１に記載の衣料用液体洗浄剤組成物。 (B) The liquid detergent composition for clothing according to claim 1, which contains 5% by mass or more and 30% by mass or less of the component.
  3. 　（ａ）成分が、陰イオン界面活性剤、非イオン界面活性剤、両性界面活性剤、及び陽イオン界面活性剤から選ばれる１種以上の界面活性剤である、請求項１又は２に記載の衣料用液体洗浄剤組成物。 The invention according to claim 1 or 2, wherein the component (a) is one or more surfactants selected from anionic surfactants, nonionic surfactants, amphoteric surfactants, and cationic surfactants. Liquid detergent composition for clothing.
  4. 　（ａ）成分として、陰イオン界面活性剤を含有する、請求項１～３の何れか１項に記載の衣料用液体洗浄剤組成物。 (A) The liquid detergent composition for clothing according to any one of claims 1 to 3, which contains an anionic surfactant as a component.
  5. 　（ａ）成分として、陰イオン界面活性剤を含有し、（ａ）成分中、陰イオン界面活性剤の割合が８０質量％以上である、請求項１～４の何れか１項に記載の衣料用液体洗浄剤組成物。 The clothing according to any one of claims 1 to 4, which contains an anionic surfactant as a component (a) and has an anionic surfactant content of 80% by mass or more in the component (a). Liquid detergent composition for.
  6. 　（ａ）成分として、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を含有する、請求項１～５の何れか１項に記載の衣料用液体洗浄剤組成物。 The liquid detergent composition for clothing according to any one of claims 1 to 5, which contains (a) a polyoxyalkylene alkyl ether sulfate ester or a salt thereof.
  7. 　（ａ）成分中、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の割合が８０質量％以上である、請求項６に記載の衣料用液体洗浄剤組成物。 The liquid detergent composition for clothing according to claim 6, wherein the proportion of the polyoxyalkylene alkyl ether sulfate ester or a salt thereof in the component (a) is 80% by mass or more.
  8. 　（ｂ）成分として、無機硫酸塩、及び無機塩化物から選ばれる１種以上の無機塩を含有する、請求項１～７の何れか１項に記載の衣料用液体洗浄剤組成物。 The liquid detergent composition for clothing according to any one of claims 1 to 7, which contains (b) one or more inorganic salts selected from an inorganic sulfate and an inorganic chloride as a component.
  9. 　（ｂ）成分として、硫酸ナトリウム及び硫酸マグネシウムから選ばれる無機塩を含有する、請求項１～８の何れか１項に記載の衣料用液体洗浄剤組成物。 The liquid detergent composition for clothing according to any one of claims 1 to 8, which contains an inorganic salt selected from sodium sulfate and magnesium sulfate as a component (b).
  10. 　（ａ）成分の含有量と（ｂ）成分の含有量との質量比である、（ａ）／（ｂ）が０．５以上２以下である、請求項１～９の何れか１項に記載の衣料用液体洗浄剤組成物。 According to any one of claims 1 to 9, wherein (a) / (b) is 0.5 or more and 2 or less, which is the mass ratio of the content of the component (a) and the content of the component (b). The liquid detergent composition for clothing described.
  11. 　３０℃のｐＨが８以上１１以下である、請求項１～１０の何れか１項に記載の衣料用液体洗浄剤組成物。 The liquid detergent composition for clothing according to any one of claims 1 to 10, wherein the pH at 30 ° C. is 8 or more and 11 or less.
  12. 　手洗い用である、請求項１～１１の何れか１項に記載の衣料用液体洗浄剤組成物。 The liquid detergent composition for clothing according to any one of claims 1 to 11, which is for hand washing.
  13. 　塗布型である、請求項１～１２の何れか１項に記載の衣料用液体洗浄剤組成物。 The liquid detergent composition for clothing according to any one of claims 1 to 12, which is a coating type.
  14. 　請求項１～１３の何れか１項に記載の衣料用液体洗浄剤組成物で衣料を洗浄する、衣料の洗浄方法。 A method for cleaning clothes, wherein the clothes are washed with the liquid detergent composition for clothes according to any one of claims 1 to 13.
  15. 　前記衣料用液体洗浄剤組成物を衣料に塗布した後、当該衣料を洗浄する、請求項１４に記載の衣料の洗浄方法。 The method for cleaning clothing according to claim 14, wherein the liquid detergent composition for clothing is applied to the clothing and then the clothing is washed.
  16. 　前記衣料用液体洗浄剤組成物を衣料に塗布し、塗布された箇所を手洗いする、請求項１４又は１５に記載の衣料の洗浄方法。 The method for cleaning clothing according to claim 14 or 15, wherein the liquid detergent composition for clothing is applied to clothing and the applied portion is washed by hand.
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