JP6144576B2 - Cleaning composition for clothing - Google Patents

Description

  The present invention relates to a garment cleaning composition and a garment cleaning method.

  Conventionally, a cleaning composition for clothing has a hardness component in tap water such as calcium and magnesium that reduces the ability of a surfactant, an anionic surfactant, etc. to solubilize or disperse dirt adhered to the clothing in the cleaning liquid. It is composed of a sequestering agent for removal from the washing liquid, an alkaline agent for promoting the decomposition and solubilization of dirt, and the like.

  As the main component of the surfactant, anionic surfactants such as linear alkyl sulfonate, linear alkyl benzene sulfonate, alkyl sulfate ester salt, polyoxyethylene alkyl ether sulfate ester, and polyoxyethylene alkyl ether Nonionic surfactants are frequently used.

  Anionic surfactants mainly used in laundry detergent compositions reduce surface tension and interfacial tension when combined with hardness components such as calcium ions and magnesium ions contained in tap water and well water used for washing. It is known that the ability to be reduced. It is known that when the ability to reduce the surface tension and interfacial tension is reduced, the cleaning performance of dirt attached to clothing is reduced. As a sequestering agent that captures hardness components contained in tap water and the like, crystalline sodium aluminosilicate having a specific structure (referred to in the industry as synthetic zeolite) is widely used.

  As a typical stain adhering to clothing used at home, sebum stain derived from human sebum is known. It is known that sebum stains adhere to a large amount of garments and sleeves such as underwear and shirts that are in direct contact with the human body.

  Patent Document 1 discloses an amine oxide surfactant having a specific structure of 15 to 50% by weight, an aluminosilicate that captures hardness components (calcium ions, magnesium ions, etc.) in tap water, and an alkali agent. A nonionic high bulk density granular detergent composition containing 5 to 60% by weight and having improved sebum soil detergency is disclosed.

  In Patent Document 2, by using an amine oxide mixture containing a specific amount of an amine oxide having 14 carbon atoms, a decrease in viscosity when an amine oxide and a short-chain surfactant (particularly octyl sulfate) are used in combination is suppressed, A liquid composition having excellent adhesion to a hard surface is disclosed.

JP-A-9-241678 JP-T 9-500680

  A sequestering agent is used to capture hardness components contained in the water used for washing. However, it has been found that there is a problem that even if a sufficient amount of sequestering agent is added to the cleaning composition, the hardness component contained in the water cannot be completely captured.

  Fatty acids are known as one of the components that make up sebum stains attached to clothing. After the fatty acid present on the surface of the sebum soil was neutralized with alkali in the cleaning solution, it was combined with hardness components such as calcium ions that could not be sufficiently captured by the sequestering agent, resulting in scum, and the sebum soil was scummed. By covering with fatty acids, polyoxyalkylene addition type nonionic surfactants and anionic surfactants, which are generally known as cleaning ingredients, are less likely to penetrate sebum stains and sebum stains are less likely to be removed. The present inventors have found out.

  Sebum stains present on the surface of cotton garments are easy to remove because of sufficient mechanical force. However, the present inventors have found that there is a further problem that sebum dirt that has penetrated deep into the cotton fibers constituting the cotton apparel is more difficult to remove because the mechanical force does not act sufficiently.

  If water-insoluble fatty acid salts that are difficult to wash remain in clothing, problems such as yellowing of clothes and generation of malodors will occur.

  An object of the present invention is to provide a technique capable of achieving extremely high sebum detergency against sebum soil containing fatty acids scummed in a cleaning solution.

  As a result of intensive studies to solve the above-mentioned problems in the detergent composition for clothing, the present inventors have found that an amine oxide having an aliphatic hydrocarbon group having 14 carbon atoms or an aliphatic alkanoyl group having 14 carbon atoms. It has been found that when an amine oxide having an acid content is blended in a detergent composition for clothing containing an alkali component, such a composition is excellent in the ability to clean sebum soil containing fatty acids adhering to clothes. Therefore, it discovered that the compounding quantity of sequestering agents, such as a zeolite, can be reduced. Moreover, it has been found that such a composition can provide an extremely high sebum cleaning performance even when high-hardness water is used as water for preparing the cleaning liquid, and the present invention has been completed.

That is, the gist of the present invention is as follows.
[1] Component (a): the following general formula (1):

[In the formula, n is a number of 12 or 13, m is a number of 1 when n is 12, m is a number of 0 when n is 13, and R ¹ and R ² groups are the same or Differently, an alkyl group having 1 to 3 carbon atoms, a hydroxyalkyl group having 1 to 3 carbon atoms, and an alkyl group having 1 to 3 carbon atoms in which one of the hydrogen atoms is substituted with a methoxy group or an ethoxy group A group selected from the group consisting of ] 15 mass% or more and 50 mass% or less of 1 or more types of compounds selected from the compound group represented by these,
(B) Component: 3 mass% or more and 40 mass% or less of an alkaline agent, and (c) Component: a detergent composition for clothing containing a sequestering agent of 0 mass% or more and less than 5 mass%; and [2 ] The washing | cleaning composition for clothing as described in said [1], the washing | cleaning method which contacts water and clothing, Comprising: It is contained in the washing | cleaning liquid obtained by contacting the clothing cleaning composition and water (a ) The content of the component is 100 mg / kg or more and 1000 mg / kg or less, and the pH of the cleaning liquid is 10.5 or more and 12 or less when measured at 20 ° C. by the method described in JIS K3362: 1998. Is a ratio of the volume of the cleaning liquid to the mass of the garment, that is, the method of cleaning the garment in which the [volume of the cleaning liquid (liter)] / [the mass of the garment (kg)] is 2 or more and 40 or less.

  Since the cleaning composition for clothing of the present invention is excellent not only in sebum soil adhering to the surface of the fibers constituting the clothing, but also in the cleanability of fatty acid scum in sebum soil existing deep in the fibers, According to the invention, it is possible not only to remove appearance stains of clothing but also to effectively remove fatty acid scum present in the fiber. Moreover, even if the hardness component in the water which prepares a washing | cleaning liquid is high, the composition of this invention can exhibit the outstanding cleaning power with respect to sebum dirt.

  The unique cleaning effect of the present invention is that the amine oxide having a specific carbon chain length dissociates the hardness component strongly bound to the fatty acid in the fatty acid scum existing deep in the cotton garment, solubilizing the fatty acid component in the cleaning liquid, The present inventors presume that this is achieved by dispersing.

<(A) component>
The component (a) is one or more compounds selected from the group of compounds represented by the following general formula (1).

[In the formula, n is a number of 12 or 13, m is a number of 1 when n is 12, m is a number of 0 when n is 13, and R ¹ and R ² groups are the same or Differently, an alkyl group having 1 to 3 carbon atoms, a hydroxyalkyl group having 1 to 3 carbon atoms, and an alkyl group having 1 to 3 carbon atoms in which one of the hydrogen atoms is substituted with a methoxy group or an ethoxy group A group selected from the group consisting of ]

In the general formula (1), as the R ¹ group and R ² group, a group selected from the group consisting of a methyl group, an ethyl group, a 2-hydroxyethyl group, and a 2-methoxyethyl group is a fatty acid in sebum. This is preferable in that it easily forms an aggregate and improves the detergency of sebum soil containing fatty acid scum.

  Specific examples of preferred compounds of component (a) include one or more compounds selected from 3- (N-myristoylamino) propyl-N, N-dimethylamine oxide and N-myristyl-N, N-dimethylamine oxide. It is.

  The component (a) can be obtained by oxidizing a tertiary amine with hydrogen peroxide. An example is the method described in JAOCS, 71, No. 7, 793 (1994).

  Patent Document 1 is an invention based on the premise that a sequestering agent such as zeolite is actively used. By using a specific amount of amine oxide having a specific carbon number, sebum can be obtained even if the sequestering agent is small. It is not assumed that the detergency can be maintained. Patent Document 2 is an invention that suppresses a decrease in viscosity by using an amine oxide having a specific chain length. By using a specific amount of an amine oxide having a specific number of carbon atoms, sebum that penetrates into the interior of the garment. The idea of removing fatty acid scum present on the surface of dirt cannot be recalled.

<(B) component>
The component (b) is an alkaline agent. In the present invention, component (b) dissociates fatty acids present in sebum soil that has penetrated deep into clothing into fatty acid ions, whereby amine oxides having specific carbon chains form complexes with fatty acid ions. The present inventors believe that sebum soil containing fatty acids is detached from the clothing as a result.

  Component (b) is excellent in solubility in water and easily causes a chemical reaction with a fatty acid that has penetrated into clothing, so that alkali metal hydroxide, alkali metal carbonate, alkali metal bicarbonate and carbon number 1 or more types selected from the group which consists of 2 or more and 3 or less alkanolamine are preferable. Specific examples of the alkali metal hydroxide include sodium hydroxide and potassium hydroxide. Examples of the alkali metal carbonate include sodium carbonate and potassium carbonate. Examples of the alkali metal bicarbonate include sodium bicarbonate and potassium bicarbonate. Examples of the alkanolamine having 2 to 3 carbon atoms include monoethanolamine, diethanolamine, and triethanolamine. It consists of an alkali metal hydroxide, an alkali metal carbonate, an alkanolamine having 2 or more and 3 or less carbon atoms in that it sufficiently dissociates the fatty acid present in the sebum stain and promotes the interaction with the component (a). Alkaline agents selected from the group are preferred. More preferably, it is at least one selected from the group consisting of sodium hydroxide, potassium hydroxide, sodium carbonate, potassium carbonate, sodium bicarbonate and potassium bicarbonate, more preferably sodium hydroxide and / or sodium carbonate. is there.

<(C) component>
(C) A component is a sequestering agent. As the sequestering agent, those publicly known in the field of the present invention can be used without particular limitation, but preferred are (c1) alkali metal silicate, (c2) aluminosilicate and (c3) shown below. And) one or more compounds selected from the group consisting of organometallic sequestering agents.

[(C1) alkali metal silicate]
Alkali metal silicate is an alkali metal salt of silicic acid (SiO ₂ ), and a compound having an alkali metal silicate SiO ₂ / M ₂ O (where M represents an alkali metal) is generally 0.5 to 2.6. Used. More specifically, it has a composition represented by the following general formula (II).

x (M ₂ O) ・ y (SiO ₂ ) ・ z (Me _m O _n ) ・ w (H ₂ O) (II)
[In the formula, M represents one or a combination of two or more selected from the group consisting of alkali metals, and Me is selected from Group II, Group III, Group IV and Group VIII in the periodic table of elements. A seed or two or more elements, y / x = 0.5 or more, 2.6 or less, z / x = 0.01 or more, 10 or less, w = 0 or more, 20 or less, n / m = 0. 5 or more and 20 or less. ]

In the general formula (II), examples of the alkali metal as M include Na and K. These may be used alone or, for example, Na ₂ O and K ₂ O may be mixed to constitute the M ₂ O component. Examples of Me include Mg, Ca, Zn, Y, Ti, Zr, and Fe. These are not particularly limited, but Mg and Ca are preferable from the viewpoint of resources and safety. Further, it may be mixed alone or two or more, for example MgO, CaO or the like may constitute the Me _m O _n component are mixed.

In the general formula (II), y / x is 0.5 or more and 2.6 or less, preferably 1.5 or more and 2.2 or less. When y / x exceeds 2.6, the ion exchange capacity also decreases. In general formula (II), when z / x exceeds 1.0, the ion exchange capacity is lowered. x, y, and z are not particularly limited as long as they are in the relationship shown in the y / x ratio and z / x ratio. As described above, when x (M ₂ O) is, for example, x ′ (Na ₂ O) · x ″ (K ₂ O), x is x ′ + x ″. Such a relationship is the same for z when the z (Me _m O _n ) component is composed of two or more types. N / m represents the number of oxygen ions coordinated to the element, and is substantially selected from values of 0.5, 1.0, 1.5, and 2.0.

The alkali metal silicate represented by the general formula (II) has an ion exchange capacity of 100 CaCO ₃ mg / g or more, preferably 200 to 600 CaCO ₃ mg / g, and has an ion capturing ability in the present invention. One of the substances.

[(C2) aluminosilicate]
The aluminosilicate may be crystalline or non-crystalline, but a crystalline aluminosilicate is preferred as a compound having a high calcium ion exchange capturing ability. Crystalline aluminosilicate is generally called zeolite and has the following formula (III):
a '(M ₂ O) ・ Al ₂ O ₃・ b' (SiO ₂ ) ・ w (H ₂ O) (III)
[Wherein, M represents an alkali metal atom, a ′, b ′, and w represent the number of moles of each component, and generally 0.7 ≦ a ′ ≦ 1.5 and 0.8 ≦ b ′ <6. And w is an arbitrary positive number. ] Is represented. Among them, the following general formula (IV):
Na ₂ O ・ Al ₂ O ₃・ n (SiO ₂ ) ・ w (H ₂ O) (IV)
[Here, n represents a number of 1.8 to 3.0, and w represents a number of 1 to 6.] ] Is preferable.

  As the crystalline aluminosilicate (zeolite), synthetic zeolite having an average primary particle size of 0.1 to 10 μm represented by A-type, X-type, and P-type zeolite is preferably used. Zeolite may be blended as zeolite aggregated dry particles obtained by drying powder and / or zeolite slurry.

[(C3) Organometallic sequestering agent]
The organometallic sequestering agent that can be used in the present invention is preferably a chelating agent having a molecular weight of 1000 or less from the viewpoint of versatility. Examples of the chelating agent include nitrilotriacetic acid, iminodiacetic acid, ethylenediaminetetraacetic acid, diethylenetriaminepentaacetic acid, glycol etherdiaminetetraacetic acid, hydroxyethyliminodiacetic acid, triethylenetetraaminehexaacetic acid, and diencoric acid. Salts; organic acids such as diglycolic acid, oxydisuccinic acid, carboxymethyloxysuccinic acid, citric acid, lactic acid, tartaric acid, oxalic acid, malic acid, gluconic acid, carboxymethylsuccinic acid, carboxymethyltartaric acid, and salts thereof . Here, the salt is preferably an alkali metal salt such as Na or K, or an alkanolamine having 2 to 6 carbon atoms such as monoethanolamine, diethanolamine or triethanolamine from the viewpoint of versatility.

<Other surfactants>
The detergent composition for clothing of the present invention can contain a surfactant other than the component (a) as the component (d) to the extent that the effects of the present invention are not impaired. Examples of the component (d) include an anionic surfactant as the component (d1) and a nonionic surfactant as the component (d2). Anionic surfactants and nonionic surfactant compounds are listed on page 27 of Introductory Surfactants (Original: Takehiko Fujimoto, Publisher: Sanyo Kasei Kogyo Co., Ltd., June 11, 2007, first printing). -111 pages, and those skilled in the art can easily understand what kind of compound it is.

  Specific examples of the anionic surfactant as the component (d1) include a sulfuric acid ester salt of a linear or branched primary or secondary alcohol having 10 to 18 carbon atoms, 8 to 18 carbon atoms. Sulfuric acid ester salts of ethoxylates of linear or branched primary or secondary alcohols (ethoxylates are compounds with an average of 0.5 to 20 mol of ethyleneoxy group added to 1 mol of alcohol. ), Alkylbenzene sulfonate (an alkyl group is a linear or branched alkyl group having 8 to 16 carbon atoms), an alkane sulfonate (SAS) having 8 to 18 carbon atoms, and 8 or more carbon atoms , 18 or less α-olefin sulfonate and α-sulfo fatty acid alkyl ester salt (the alkyl group is an alkyl group having 8 to 16 carbon atoms). In addition, fatty acid salts having 10 or more and 18 or less carbon atoms (sometimes referred to as soap) are used as a cleaning component, but in general, It is considered that scum is formed by combining with a hardness component in tap water, and is likely to accumulate in clothing, but by using it together with the component (a) of the present invention, scumification is suppressed. It can be used suitably.

  As the nonionic surfactant which is component (d2), polyoxyalkylene alkyl ether, polyoxyalkylene alkyl phenyl ether, polyoxyalkylene sorbitan fatty acid ester, polyoxyalkylene fatty acid ester, polyoxyethylene polyoxypropylene block polymer and Examples thereof include one or more nonionic surfactants selected from the group consisting of alkanoyl N-methylglucamine. In the nonionic surfactant, the alkylene group of the polyoxyalkylene group represents an alkylene group having 2 to 3 carbon atoms. Specific examples include an ethylene group and a propylene group. The poly of the polyoxyalkylene group is an average greater than 1 and 100 or less. The alkyl is described for convenience in order to express the compound concisely. The alkyl group in the present invention means a primary or secondary alkyl group or alkenyl group having 8 to 18 carbon atoms. The fatty acid used as a raw material for the component (d2) means a fatty acid having 8 to 18 carbon atoms.

<Cleaning composition for clothing>
Content of the (a) component in the cleaning composition for clothes is 15 mass% or more and 50 mass% or less. 16 mass% or more is preferable and 18 mass% or more is more preferable at the point from which the effect of this application is acquired with less usage-amount of a cleaning composition. From the point of economical efficiency, 40 mass% or less is preferable, 30 mass% or less is more preferable, and 25 mass% or less is more preferable.

  The content of the component (b) in the cleaning composition for clothing is 3% by mass or more and 40% by mass or less, and the cleaning liquid containing the cleaning composition of the present invention and the clothing to which sebum dirt is attached contacted. Sometimes it may contain the necessary amount to dissociate fatty acids in sebum soil from acid form to ions. Specifically, it contains an amount necessary to make the pH of the cleaning solution measured under predetermined conditions 10.5 or higher. 5 mass% or more is more preferable, 6 mass% or more is further more preferable, 10 mass% or more is further more preferable, and 15 mass% or more is the point which raises the detergency of the fatty acid which exists in sebum soil which penetrate | deeply penetrated by clothing more. Is more preferable, and 20% by mass or more is even more preferable. From the viewpoint of economy, it is preferably 35% by mass or less, more preferably 30% by mass or less, and still more preferably 28% by mass or less.

  Content of the (c) component in the cleaning composition for clothes is 0 mass% or more and less than 5 mass%. The detergent composition of the present invention has a low content of the sequestering agent, and can exhibit excellent detergency even if it is not particularly contained. For this reason, the content of the sequestering agent in the cleaning composition is preferably 3% by mass or less, more preferably 2% by mass or less, and even more preferably 1% by mass or less from the viewpoint of economy. More preferably, it is not, that is, 0% by mass. In the present specification, for example, the content of 3% by mass or less means that it may not be included, that is, 0% by mass, or more than 0% by mass and 3% by mass or less. .

  The content of the anionic surfactant as the component (d1) and the nonionic surfactant as the component (d2) that can be included in the garment cleaning composition of the present invention from the viewpoint of sufficiently exerting the effects of the present invention. Is preferably within a certain range. Specifically, the mass ratio of the component (d1) and / or the component (d2) to the total mass of the component (a) and the component (d1) and / or the component (d2) is [(d1) component + (D2) component] / [(a) component + (d1) component + (d2) component] = 0 or more and less than 0.3 is preferable from the viewpoint of cleaning properties of sebum soil, more preferably 0 or more and 0.2 It is less than, More preferably, it is 0 or more and less than 0.1, More preferably, it is 0.

  The property of the cleaning composition for clothing of the present invention may be powder or liquid.

<(E) Component: Carrier>
When the cleaning composition for clothing of the present invention is liquid in an environment of 0 to 30 ° C. under atmospheric pressure, the component (a), the component (b), the component (c), and as necessary ( In addition to the component d), water (component (e1)) is contained as a liquid carrier. The content of water is preferably 20% by mass or more and 80% by mass or less of the composition from the viewpoint of easy handling.

  When the cleaning composition for clothing of the present invention is a solid at 0 to 30 ° C. under atmospheric pressure, the component (a), the component (b), the component (c) and, if necessary, ( d) One or more selected from the group consisting of an alkali metal chloride [(e2) component] and an alkali metal sulfate [(e3) component] may be formed by mixing the components. Can be included as a solid support.

  The specific compound of the alkali metal chloride [component (e2)] is not particularly limited, and examples thereof include one or more compounds selected from the group consisting of sodium chloride and potassium chloride. In addition, the specific compound of the alkali metal sulfate [component (e3)] is not particularly limited, and examples thereof include one or more compounds selected from the group consisting of potassium sulfate and sodium sulfate.

  Examples of the other solid carrier [component (e4)] include one or more compounds selected from the group consisting of silica, porous silica, silicon carbide, quartz sand, calcium carbonate, calcium phosphate and bentonite. It is done.

  The content of one or more selected from the group consisting of the component (e2), the component (e3) and the component (e4) in the liquid detergent composition for clothing is 5% by mass or more in terms of forming a solid, 82 It is preferable to contain it by mass% or more.

<Other optional components>
The detergent composition for clothing of the present invention includes a recontamination inhibitor, a color transfer inhibitor such as polyvinylpyrrolidone, a bleaching agent such as hydrogen peroxide, sodium percarbonate or sodium perborate, and a general one disclosed in JP-A-6-316700. Bleach activators such as bleach activators represented by formulas (I-2) to (I-7), enzymes such as cellulase, amylase, pectinase, protease, lipase, fluorescent dyes such as Tinopearl CBS (trade name, Ciba Specialty Chemicals) and Whitetex SA (trade name, manufactured by Sumitomo Chemical Co., Ltd.), commercially available fluorescent dyes, antioxidants such as butylhydroxytoluene, distyrenated cresol, sodium sulfite and sodium bisulfite, dyes, fragrances, An antifoaming agent such as an antibacterial preservative and silicone may be contained.

<How to wash clothes>
The garment cleaning method of the present invention is a cleaning method in which the above-described garment cleaning composition of the present invention, water and clothing are brought into contact with each other, and is obtained by bringing the garment cleaning composition into contact with water. The content of the component (a) contained in the cleaning liquid is 100 mg / kg or more and 1000 mg / kg or less, and the pH of the cleaning liquid when measured at 20 ° C. by the method described in JIS K3362: 1998 is 10.5 or more and 12 or less. And the ratio of the volume of the cleaning liquid to the mass of the clothing, that is, the ratio of the volume of the cleaning liquid (liter) / the mass of the clothing (kg) is 2 or more and 40 or less. is there.

  The content of the component (a) in the cleaning liquid is 100 mg or more per 1 kg of the cleaning liquid, that is, 100 mg / kg or more, preferably 110 mg / kg or more, and 120 mg in that the fatty acid in the sebum that has penetrated into the clothing is removed. / Kg or more is more preferable. In terms of economy, it is 1000 mg / kg or less, preferably 500 mg / kg or less, more preferably 300 mg / kg or less, and even more preferably 200 mg / kg or less.

  The pH of the cleaning liquid can be set to a desired range by adjusting the amount of component (b) added. In this specification, the pH of the cleaning liquid is a pH measured at 20 ° C. by the method described in JIS K3362: 1998, and the pH of the cleaning liquid is 10.5 or more and 12.0 or less.

  The pH of the cleaning solution measured at 20 ° C. is 10.5 or more, preferably 10.8 or more, and more preferably 11.0 or more in terms of facilitating dissociation of fatty acids in sebum soil that has penetrated into the clothing. It is 12.0 or less at a point with little influence on clothing, 11.8 or less are preferred, and 11.5 or less are more preferred.

  The ratio of the volume of the cleaning liquid to the mass of the garment is [volume of the cleaning liquid (liter)] / [mass of the garment (kg)] of 2 or more and 40 or less, preferably 3 or more from the viewpoint of detergency. Is more preferable, 7 or more is more preferable, and 10 or more is more preferable. The ratio value is preferably 30 or less, more preferably 25 or less, and even more preferably 20 or less, in that the amount of water used to prepare the cleaning liquid is small and economical efficiency is excellent.

  As water which can be used for the washing | cleaning method of the clothing of this invention, the tap water containing a hardness component may be sufficient. In view of the effect of the present invention, the suitable hardness of water is preferably 6 ° DH or higher, more preferably 8 ° DH or higher, more preferably 10 ° DH or higher, and preferably 20 ° DH or lower in German hardness. It is more preferably 15 ° DH or less, and further preferably 12 ° DH or less. From the viewpoint of the detergency of sebum dirt, the water hardness is preferably 20 ° DH or less.

  The temperature of the cleaning liquid is preferably 0 ° C. or higher, more preferably 5 ° C. or higher, still more preferably 10 ° C. or higher, and even more preferably 20 ° C. or higher, from the viewpoint of sebum dirt, especially the detergency of fatty acid scum. Moreover, from a viewpoint of economical efficiency, 45 degrees C or less is preferable, 40 degrees C or less is more preferable, and 35 degrees C or less is still more preferable.

  The time for bringing the washing liquid into contact with the garment is preferably 5 minutes or more, more preferably 10 minutes or more, still more preferably 30 minutes or more, even more preferably 40 minutes or more, and even more preferably 50 minutes or more from the viewpoint of detergency. 60 minutes or more is even more preferable. In terms of saving time required for washing, it is preferably 10 hours or less, more preferably 6 hours or less, still more preferably 4 hours or less, and even more preferably 2 hours or less.

  A commercially available washing machine may be used to bring the cleaning solution into contact with clothing. Put the cleaning solution and clothing in a container such as a bucket, tarai, or bag, and wash with a fir tree by hand or with a brush. May be. Alternatively, the cleaning liquid and clothing may be left in contact with each other.

  After performing the cleaning method of the present invention, it is possible to perform an operation of rinsing clothing using water and reducing the amount of water that has permeated the clothing (sometimes referred to as dehydration).

EXAMPLES Hereinafter, although this invention is demonstrated based on an Example, this invention is not limited at all by the Example. The components used in the examples are shown below.
[(A) component]
-The component (a) used is shown in Table 1.

[(B) component: alkaline agent]
・ Sodium carbonate: anhydrous sodium carbonate [Wako Pure Chemical Industries, Ltd.]
・ Sodium hydroxide: Sodium hydroxide granular [Wako Pure Chemical Industries, Ltd.]
[(C) component: sequestering agent]
Zeolite: 4A zeolite [Average particle size 3 [mu] m (manufactured by Tosoh Corporation), a crystalline aluminosilicate _{composition: M 2 O · Al 2 O} 3 · 2SiO 2 · 2H 2 O, ion exchange capacity: 290CaCO ₃ mg / G, M is Na, K. ]
[Optional ingredients]
・ Sodium sulfate ・ Porous silica compound: Calcium silicate ("FLORITE R", manufactured by Tokuyama Corporation)

[Component (d)]
Nonionic surfactant (1): Ethylene oxide adduct of lauryl alcohol (Emulgen 106 manufactured by Kao Corporation)
Nonionic surfactant (2): Ethylene oxide adduct of lauryl alcohol (Emulgen 108 manufactured by Kao Corporation)
LAS: Sodium laurylbenzenesulfonate

Examples 1-13 and Comparative Examples 1-9
Preparation of Cleaning Composition The liquid compositions in Tables 2 and 3 were prepared by the following method. The components (a) and the like in the amount shown in the table and ion-exchanged water were heated to 50 ° C. in a hot water bath and uniformly dissolved, and then naturally cooled to room temperature to obtain a composition.

Examples 14-17 and Comparative Examples 10-11
The powder composition having the composition shown in Table 4 was prepared by the following method. The amount of component (b), porous silica compound and sodium sulfate shown in Table 4 were put into a tabletop portable mixer, and then the component (a) was added little by little while stirring. Stirring was continued. Stirring was then stopped, and when component (c) was present, stirring was continued for another 10 minutes after component (c) was added. The obtained mixture was used as a powder detergent composition.

<Detergency test>
(Preparation of artificial sebum soiled cloth)
An artificial sebum soil contaminated cloth having the following composition was adhered to the cloth to prepare an artificial sebum soil contaminated cloth. The artificial sebum soil contamination liquid was adhered to the cloth using a gravure roll coater according to the method described in JP-A-10-204769. The process of preparing an artificial sebum soil contaminated cloth by attaching an artificial sebum soil contaminated liquid to the cloth is as follows: Gravure roll cell capacity: 58 cm ³ / m ² , coating speed: 1.0 m / min, drying speed: 100 ° C., drying time : Performed in 1 minute. As the cloth, a cotton gold cloth 2003 cloth (manufactured by Tanigami Shoten) was used.

[Composition of artificial sebum soil contamination liquid]
Lauric acid 0.44% by mass
Myristic acid 3.09% by mass
Pentadecanoic acid 2.31% by mass
Palmitic acid 6.18% by mass
Heptadecanoic acid 0.44% by mass
Stearic acid 1.57% by mass
Oleic acid 7.75% by mass
Trioleic acid 13.06% by mass
N-Hexadecyl palmitate 2.18% by mass
Squalene 6.53 mass%
Egg white lecithin liquid crystal 1.94% by mass
Kanuma red soil 8.11 mass%
Carbon black 0.01% by mass
Tap water remaining.

(Cleaning conditions and evaluation method)
5 liters (total 70 g) of the 10 cm × 10 cm artificially contaminated fabric prepared above was placed in 1 liter of the cleaning solution, and washed with a turbometer at 85 rpm. The cleaning conditions are as follows.

-Cleaning conditions Cleaning time: 60 minutes Concentration of the cleaning composition for clothing: The concentration of the cleaning composition for clothing was adjusted to 0.067% by mass.
Bath ratio [volume of washing liquid (liter) / mass of fabric (kg)]: 14
Hardness of water used for preparation of cleaning liquid: Table 2 to Table 4 Temperature of cleaning liquid: 20 ° C
The pH at 20 ° C. of the cleaning solution was measured by the method described in JIS K3362: 1998 and listed in Tables 2 to 4.
Rinse: 1 liter of tap water for 5 minutes

・ Evaluation method Detergency is measured with a colorimetric colorimeter (Nippon Denshoku Co., Ltd., Z-300A) for the reflectance at 550 nm before and after cleaning. Asked.
Washing rate (%) = 100 × [(reflectance after washing−reflectivity before washing) / (reflectance of base fabric−reflectivity before washing)]

Example 18 and Comparative Examples 12-15
In this example, not the apparent soil removability of clothing, but the fatty acid scum in the clothing was actually quantified to examine the removal of fatty acid scum present in the fibers constituting the clothing.

  Liquid detergent compositions (Example 18 and Comparative Examples 12 to 15) shown in Table 5 were prepared in the same manner as in Example 1 and the like. Next, an artificial sebum soil-contaminated cloth was prepared according to the above-mentioned <Detergency Test>, and the contaminated cloth was washed.

  Next, the sebum component of the contaminated fabric before and after washing was extracted and analyzed as follows to calculate the sebum washing rate. The results are shown in Table 5.

<Conditions for analysis of sebum adhering to washed clothes>
1) Extractor: ASE200 (DIONEX manufactured by Methanol / Chloroform = 1/1)
PREHEAT 2min, HEAT 5min, STATIC 10min, FLUSH 100Vol, PURGE 120sec, Cycles 3times, PRESSURE 1500psi, TEMP 100 ° C

2) Analyzer: Gas Chromatography Agilent Technologies 7890A Columns HP-5 Final Temp 300 ° C

Calculation of sebum cleaning rate Sebum cleaning rate (%) = 100-[(GC area of artificial sebum soil contaminated cloth (after cleaning)) / (GC area of artificial sebum soil contaminated cloth (before cleaning))] × 100

  As shown in Tables 2 to 4, by the combination of an amine oxide having an aliphatic hydrocarbon group having 14 carbon atoms or an amine oxide having an aliphatic alkanoyl group having 14 carbon atoms and an alkali agent, the hardness is not affected, A cleaning composition that exhibits a very high cleaning rate could be obtained. Moreover, in the product of the present invention, it has been found that even if no zeolite is contained in the composition, it is not affected by the hardness and can achieve a very high cleaning rate (similar to the composition containing zeolite).

  As shown in Table 5, the sebum component could be removed with extremely high efficiency by a combination of an amine oxide having an aliphatic hydrocarbon group having 14 carbon atoms and an alkali agent.

  Thus, it has been found that by using the cleaning composition of the present invention, not only the appearance dirt can be sufficiently removed, but also the sebum component in the fiber can be effectively removed.

  The composition of the present invention is suitably used as a cleaning agent for clothing.

Claims (6)

(A) Component: the following general formula (1):

[In the formula, n is a number of 12 or 13, m is a number of 1 when n is 12, m is a number of 0 when n is 13, and R ¹ and R ² groups are the same or Differently, an alkyl group having 1 to 3 carbon atoms, a hydroxyalkyl group having 1 to 3 carbon atoms, and an alkyl group having 1 to 3 carbon atoms in which one of the hydrogen atoms is substituted with a methoxy group or an ethoxy group A group selected from the group consisting of ] 15 mass% or more and 50 mass% or less of 1 or more types of compounds selected from the compound group represented by these,
(B) component: 3 mass% or more and 40 mass% or less of an alkaline agent, and (c) component: a detergent composition for clothing containing a sequestering agent of 0 mass% or more and less than 5 mass% , (B) The cleaning agent for clothes, wherein the component is at least one selected from the group consisting of alkali metal hydroxides, alkali metal carbonates, alkali metal bicarbonates, and alkanolamines having 2 to 6 carbon atoms. Composition .   (A) The component is one or more compounds selected from the group consisting of 3- (N-myristoylamino) propyl-N, N-dimethylamine oxide and N-myristyl-N, N-dimethylamine oxide. The cleaning composition for clothes according to claim 1.   (B) The cleaning composition for clothes according to claim 1 or 2 whose content of an ingredient is 5 mass% or more and 40 mass% or less.   (A) A detergent composition for clothing that further contains or does not contain an anionic surfactant of component (d1) and / or a nonionic surfactant of component (d2) as a surfactant other than component (a). The mass ratio of (d1) component and / or (d2) component to the total mass of (a) component and (d1) component and / or (d2) component ([(d1) component + (d2) Component] / [(a) component + (d1) component + (d2) component]) is 0 or more and less than 0.3, The cleaning composition for clothes of any one of Claims 1-3 . It is a washing | cleaning method which makes the cleaning composition for clothing of any one of Claims 1-4 , water, and clothing contact, Comprising: The cleaning composition obtained by contacting the cleaning composition for clothing and water The content of the component (a) contained in the solution is 100 mg / kg or more and 1000 mg / kg or less, and the pH of the cleaning liquid when measured at 20 ° C. by the method described in JIS K3362: 1998 is 10.5 or more and 12 or less. A method for cleaning clothes, wherein the cleaning liquid and the clothing contact each other at a ratio of the volume of the cleaning liquid to the mass of the clothing, that is, [the volume of the cleaning liquid (liter)] / [the mass of clothing (kg)] is 2 or more and 40 or less. The method for washing clothes according to claim 5 , wherein the water has a German hardness of 6 ° DH or more and 20 ° DH or less.