WO2017002760A1 - Powder detergent composition for clothing - Google Patents

Abstract

The present invention is a powder detergent composition for clothing, which contains the component (a), component (b), component (c), component (d) and component (e) described below in amounts within specific ranges, and which is configured such that the mass ratio of the component (e) to the component (b), namely, (component (e))/(component (b)) is from 0 to 0.5 (inclusive) and the pH of a dispersion liquid obtained by dispersing 1g of this powder detergent composition into 250 g of water is from 5.5 to 9.5 (inclusive) at 20°C. Component (a): an anionic surfactant Component (b): a water-soluble aluminum salt Component (c): one or more compounds selected from among alkali metal sulfate salts and alkali metal chlorides Component (d): one or more alkaline agents selected from among the following component (d1), component (d2) and component (d3) Component (d1): a specific water-soluble alkali salt Component (d2): one or more compounds selected from among specific aluminosilicate salts and specific smectite clays Component (d3): a tripolyphosphate salt Component (e): one or more compounds selected from among the following component (e1) and component (e2) (excluding component (a)) Component (e1): a carboxylic acid and/or a salt thereof having 1-10 carboxyl groups or salts thereof in each molecule Component (e2): a hydroxycarboxylic acid and/or a salt thereof having 1-10 carboxyl groups or salts thereof in each molecule

Description

Powder cleaning composition for clothing

The present invention relates to a powder cleaning composition for clothing and a method for washing clothing.

BACKGROUND ART In recent years, there has been a tendency for the spread of washing machines in the Asian region. However, hand-washing is still widely performed from the standpoint of detergency, economical viewpoint, cultural background, and washing consciousness. Hand-washing is suitable for fine cleaning according to the situation, such as how soil is removed and the type of clothing, compared to washing with a washing machine. In Japan, a method of washing clothes using a washing machine after hand washing in advance is also performed for clothes with a high degree of soiling.

However, hand washing is a work accompanied by physical and mental fatigue. Also, when washing detergent, when washing or after dissolving the powder detergent by hand and stirring in water, the hands are put in the washing solution for a long time, so the hands can get wet. May be accompanied by discomfort to feel.

In the powder cleaning composition, since the cleaning power is increased by making the pH of the cleaning liquid alkaline, an alkali component is generally blended. U.S. Pat. No. 4,299,739 discloses a technique that improves cleaning performance, foaming, and processing characteristics by combining a specific amount of various surfactants, alkali metal carbonates and water-soluble inorganic aluminum compounds.

In JP-A-49-29301, 10-60% sodium citrate, non-soap anionic surfactant, and aluminum salt are used to prevent eutrophication of rivers and the like and to be fine during transportation or packaging. A technique relating to a heavy granular detergent composition capable of preventing the formation of a powder is disclosed. The specification describes that the aluminum salt has an action of increasing the strength of the detergent particles.

U.S. Pat. No. 3011977 discloses that a synthetic anionic surfactant, a hydroxycarboxylic acid such as tartaric acid, in an amount of 2 to 3 moles of water-soluble aluminum salt in a neutral to slightly alkaline aqueous solution. A technique of a detergent that prevents the skin irritation caused by a synthetic anionic surfactant from being combined with a product that has been dried after being reacted and does not precipitate an aluminum hydroxide gel is disclosed.

Japanese Patent Application Laid-Open No. 2007-112984 discloses a detergent composition containing an anionic surfactant and a polyvalent cation-containing salt, and includes a region where surfactant-cation precipitation occurs in a phase diagram during rinsing of the composition. There has been disclosed a technique for improving a squeaky feeling without passing through a slimy feeling when rinsing. Aluminum salts are described as polyvalent cation-containing salts.

SUMMARY OF THE INVENTION According to U.S. Pat. No. 4,299,739, a large amount of an alkalinizing agent such as an alkali metal carbonate is blended, and an improvement in detergency can be obtained by adding a water-soluble inorganic aluminum compound thereto. However, there is a problem that it is uncomfortable because it contains a lot of alkaline agent and feels sticky when washing by hand.

According to Japanese Patent Laid-Open No. 49-29301, a high amount of expensive sodium citrate is blended as a detergent raw material, and an aluminum salt is added to achieve high particle strength while considering the environment. However, since aluminum salt and citric acid form a complex, there is a problem that it feels sticky when washing by hand.

In U.S. Pat. No. 3011977, the irritation to the skin is reduced despite the complicated work of drying after mixing the water-soluble aluminum salt with the expensive hydroxycarboxylic acid before producing the detergent. There is a problem that you can feel a slimy feeling when you wash your hands.

Japanese Patent Application Laid-Open No. 2007-112984 discloses a technique for improving the feel of squeakiness without a slimy feeling during rinsing, but does not recognize the problem of sliminess caused by sodium sulfate or sodium chloride.

The present invention provides a powder detergent composition for clothing that is excellent in solubility in water, has high detergency against food-derived oil stains, and is comfortable for hand washing.

In the present invention, the following component (a) is 10% by mass to 40% by mass, component (b) is 0.3% by mass to 6% by mass in terms of anhydride, and component (c) is 10% by mass to 80% by mass. % Of the powder for clothing containing the component (d) and the component (e), and the mass ratio of the component (e) to the component (b) (e) component / (b) component is 0 or more and 0.5 or less The present invention relates to a powder cleaning composition for clothing, in which the pH at 20 ° C. of a dispersion obtained by dispersing 1 g of powder cleaning composition for clothing in 250 g of water is 5.5 to 9.5.
(A) Component: Anionic surfactant (b) Component: Water-soluble aluminum salt (c) Component: One or more compounds selected from alkali metal sulfates and alkali metal chlorides (d) Component: The following (d1) One or more alkali agents selected from the component, (d2) component, and (d3) component (d1) component: one or more selected from alkali metal carbonate, alkali metal bicarbonate, and alkali metal silicate Water-soluble alkali salt (d2) component: one or more compounds (d3) selected from aluminosilicates containing alkali metals as constituent elements and smectite clays containing alkali metals as constituent elements: Tripolyphosphate (e) Component: One or more compounds selected from the following components (e1) and (e2) (however, the component (a) is excluded)
Component (e1): Carboxylic acid having 1 to 10 carboxyl groups and / or salts thereof in the molecule and / or salt thereof (e2) Component: 1 to 10 carboxyl groups or salts in the molecule Or less hydroxycarboxylic acids and / or salts thereof

In one aspect of the present invention, the following component (a) is 10% by mass to 40% by mass, component (b) is 0.3% by mass to 6% by mass in terms of anhydride, and component (c) is 30%. The composition contains (d) component and (e) component, and the mass ratio of (e) component to (b) component (e) component / (b) component is 0 or more and 0.5 or less. A powder cleaning composition for clothing, wherein the pH of the dispersion obtained by dispersing 1 g of the powder cleaning composition for clothing in 250 g of water is 5.5 to 8 at 20 ° C. Offer things.
(A) Component: one or more anionic surfactants selected from the following (a1) component, (a2) component, and (a3) component (a1) component: alkyl or alkenyl sulfate ester salt (a2) component: alkyleneoxy Polyoxyalkylene alkyl or alkenyl ether sulfate ester group having a group (a3) component: anionic surfactant having a sulfonate group (b) component: water-soluble aluminum salt (c) component: alkali metal sulfate and alkali metal chloride One or more compound (d) components selected from the following: (d1) component below, one or more alkali agent (d1) component selected from (d2) component: alkali metal carbonate, alkali metal bicarbonate, and One or more water-soluble alkali salt (d2) components selected from alkali metal silicates: A containing an alkali metal as a constituent element Minokei salt, and one or more compounds selected from the smectite clay containing alkali metal as a constituent element (e) component: a carboxylic acid and / or a salt thereof, or a hydroxycarboxylic acid and / or a salt thereof,

The present invention also relates to a method for washing clothing, in which the clothing is washed by hand using a cleaning liquid obtained by mixing the powder cleaning composition for clothing of the present invention and water.

According to the present invention, there is provided a powder detergent composition for clothing that has excellent solubility in water, has high detergency against food-derived oil stains, and is comfortable for hand washing. In more detail, the powder cleaning composition for clothing of the present invention has less wetness when handwashing and rinsing, and there is little residual feeling of the powder cleaning composition for clothing when rinsing and handwashing. A comfortable feel can be given to the hand during work.

MODE FOR CARRYING OUT THE INVENTION <Component (a)>
The component (a) of the present invention is an anionic surfactant. Specific examples of the component (a) include one or more anionic surfactants selected from the following components (a1), (a2), (a3), and (a4).
(A1) Component: Alkyl or alkenyl sulfate ester salt (a2) Component: Polyoxyalkylene alkyl or alkenyl ether sulfate ester salt having an alkyleneoxy group (a3) Component: Anionic surfactant having a sulfonate group (a4) Component: Fatty acids having 12 to 24 carbon atoms or salts thereof (excluding component (e))

More specifically, the component (a1) is one or more selected from alkyl sulfates having 10 to 18 carbon atoms in the alkyl group and alkenyl sulfates having 10 to 18 carbons in the alkenyl group. Of anionic surfactants. From the viewpoint of improving detergency or improving the comfort of hand-washing work, the component (a1) is one or more anionic surfactants selected from alkyl sulfate esters having an alkyl group with 12 to 14 carbon atoms. And one or more anionic surfactants selected from sodium alkyl sulfates having an alkyl group with 12 to 14 carbon atoms are more preferred.

More specifically, as the component (a2), a polyoxyalkylene alkyl ether sulfate ester salt having an alkyl group having 10 to 18 carbon atoms and an alkylene oxide average addition mole number of 1 to 3 and alkenyl group carbon Examples thereof include one or more anionic surfactants selected from polyoxyalkylene alkenyl ether sulfate esters having a number of 10 or more and 18 or less, and an alkylene oxide average addition mole number of 1 or more and 3 or less. Examples of the oxyalkylene group include oxyalkylene groups having 2 to 3 carbon atoms. Examples of the oxyalkylene group having 2 to 3 carbon atoms include one or more groups selected from an oxypropylene group and an oxyethylene group. From the viewpoint of improving detergency and foaming at the time of washing, the component (a2) is preferably a polyoxyethylene alkyl ether sulfate ester salt having an average ethylene oxide addition mole number of 1 or more and 2.2 or less. The polyoxyethylene alkyl ether sulfate ester salt having a carbon number of 12 to 14 and an average ethylene oxide addition mole number of 1 to 2.2 is more preferred, and these sodium salts are more preferred.

The anionic surfactant having a sulfonate group as the component (a3) represents an anionic surfactant having a sulfonate as a hydrophilic group.
More specifically, as the component (a3), an alkylbenzene sulfonate having an alkyl group having 10 to 18 carbon atoms, an alkenylbenzene sulfonate having an alkenyl group having 10 to 18 carbon atoms, and an alkyl group having a carbon number. Is an alkane sulfonate having 10 to 18 carbon atoms, an α-olefin sulfonate having an α-olefin portion of 10 to 18 carbon atoms, an α-sulfo fatty acid salt having a fatty acid portion of 10 to 18 carbon atoms, and a fatty acid Examples thereof include one or more anionic surfactants selected from α-sulfo fatty acid lower alkyl ester salts having 10 to 18 carbon atoms in the moiety and 1 to 5 carbon atoms in the ester moiety. From the viewpoint of detergency and foamability during washing, the component (a3) is preferably an alkylbenzene sulfonate having an alkyl group with 11 to 14 carbon atoms, and an alkylbenzene sulfone with an alkyl group having 11 to 14 carbon atoms. Sodium acid is more preferred.

The component (a4) is a fatty acid having 12 to 24 carbon atoms or a salt thereof (excluding the component (e)). A fatty acid having 12 to 24 carbon atoms or a salt thereof is an anionic surfactant having an aliphatic hydrocarbon group having 11 to 23 carbon atoms as a hydrophobic group and a carboxylic acid or a salt thereof as a hydrophilic group. The component (a4) of the present invention is a compound different from the component (e). Specific examples of the component (a4) include lauric acid, myristic acid, palmitic acid, palmitoleic acid, stearic acid, oleic acid, elaidic acid, linoleic acid, linolenic acid, and salts thereof.

(A) The salt of the anionic surfactant that is the component is preferably an alkali metal salt, more preferably a sodium salt or a potassium salt, and still more preferably a sodium salt.

In the powder cleaning composition for clothing of the present invention, the component (a) is 10% by mass or more, preferably 12% by mass or more, more preferably 14% by mass, from the viewpoint of improving detergency against food-derived oil stains. Above, more preferably 15% by mass or more, and 40% by mass or less, preferably 30% by mass or less, more preferably 28% by mass or less, and further preferably 25% by mass or less, from the viewpoint of improving the comfort of hand washing work. contains.

The powder cleaning composition for clothing of the present invention comprises, as component (a), one or more anionic surfactants selected from component (a1) and component (a2) and one or more selected from component (a3) It is preferable to contain an anionic surfactant. More preferably, the powder cleaning composition for clothing of the present invention contains one or more anionic surfactants selected from the component (a1) and one or more anionic surfactants selected from the component (a3). . The component (a) may be one or more anionic surfactants selected from the components (a1) and one or more anionic surfactants selected from the components (a3). In addition, the powder cleaning composition for clothing of the present invention comprises, as component (a), one or more anionic surfactants selected from component (a1) and one or more anionic interfaces selected from component (a2). An active agent may be contained. Furthermore, the component (a) may be one or more anionic surfactants selected from the components (a1) and one or more anionic surfactants selected from the components (a2). The combination of these (a) components may contain the (a4) component further.

In the component (a), the mass ratio (a1) / [(a2) + (a3)] of the content of the component (a1) and the total content of the components (a2) and (a3) is derived from food. From the viewpoint of improving the detergency of oil stains, it is preferably 0.1 or more, more preferably 0.2 or more, and preferably 1.5 or less, more preferably 1.2 or less, still more preferably 1. It is as follows. Here, in the mass ratio (a1) / [(a2) + (a3)], the meaning of [(a2) + (a3)] is not limited to the aspect including both the component (a2) and the component (a3). , (A2) and an embodiment containing only one of the components (a3).

In the component (a), the mass ratio [(a1) + (a2)] / (a3) of the total content of the components (a1) and (a2) and the content of the component (a3) is derived from food. From the viewpoint of improving the detergency of oil stains or improving the comfort of hand washing work, it is preferably 0.05 or more, more preferably 0.1 or more, still more preferably 0.2 or more, and preferably Is 1 or less, more preferably 0.9 or less, still more preferably 0.8 or less, and still more preferably 0.6 or less. The present invention includes an embodiment in which the powder cleaning composition for clothing does not contain the component (a3) as the component (a), but the mass ratio [(a1) + (a2)] / (a3) The mass ratio is established when the powder cleaning composition for clothing contains the component (a3) as the component (a).

<(B) component>
The component (b) of the present invention is a water-soluble aluminum salt. Regarding the component (b), “water-soluble” means that 1 g or more is dissolved in 100 g of water at 20 ° C.
Examples of the water-soluble aluminum salt include potassium alum (potassium aluminum sulfate), ammonium alum (ammonium ammonium sulfate), sodium alum (sodium aluminum sulfate), aluminum sulfate, aluminum acetate, aluminum chloride, and aluminum nitrate. The water-soluble aluminum salt is preferably potassium alum, ammonium alum and sodium alum, or aluminum sulfate from the viewpoint of improving the comfort of hand-washing operations.
The component (b) may be a hydrate or an anhydride, but the hand was brought into contact with the mixture of the powder cleaning composition for clothing of the present invention and the water used for washing. Hydrates are preferable from the viewpoint of improving the comfort of hand washing work from the initial stage of about 1 minute immediately after.
More preferably, it is at least one water-soluble aluminum salt selected from potassium aluminum sulfate 12 hydrate, sodium aluminum sulfate 12 hydrate, ammonium aluminum sulfate 12 hydrate, and aluminum sulfate 16 hydrate, and is soluble in water. From an easy viewpoint, it is still more preferably at least one water-soluble aluminum salt selected from potassium aluminum sulfate 12 hydrate, ammonium aluminum sulfate 12 hydrate, and aluminum sulfate 16 hydrate.

From the viewpoint of improving the comfort of hand-washing work, the powder cleaning composition for clothing of the present invention is 0.3% by mass or more, preferably 0.4% by mass or more, in terms of anhydride, as component (b). More preferably 0.5% by weight or more, more preferably 0.8% by weight or more, still more preferably 1% by weight or more, and from the viewpoint of improving the detergency or solubility of food-derived oil stains, 6 mass% or less, Preferably it contains 4 mass% or less.

<(C) component>
The component (c) of the present invention is one or more compounds selected from alkali metal sulfates and alkali metal chlorides. The component (c) is preferably selected from sodium sulfate and sodium chloride from the viewpoint of reducing the corrosiveness to the metal partially used in the place where clothes are washed, containers such as washbasins, etc. More than one kind of compound, more preferably sodium sulfate.

The component (c) is a component that is blended in the powder detergent composition for the purpose of adjusting the amount of the blending component, but the presence of the component (c) reduces the comfort of hand washing operations. It was newly found to be a cause. In this invention, even if there is much content of (c) component, the comfort of a hand-washing operation | work can be improved. Such an effect is realized as the content of the component (c) in the powder cleaning composition for clothing of the present invention increases.
From the viewpoint of improving the solubility of the powder cleaning composition for clothing of the present invention or improving the comfort of hand washing, the component (c) is a powder cleaning composition for clothing of the present invention. 10% by weight or more, preferably 15% by weight or more, more preferably 20% by weight or more, still more preferably 25% by weight or more, still more preferably 30% by weight or more, still more preferably 35% by weight or more, and even more preferably. 40% by mass or more, still more preferably 45% by mass or more, and 80% by mass or less, preferably 70% by mass or less, more preferably 66% by mass or less, from the viewpoint of improving the comfort of hand-washing work.

<(D) component>
(D) component of this invention is 1 or more types of alkali agents chosen from the following (d1) component, (d2) component, and (d3) component. The alkaline agent refers to an agent having an action of raising the pH of water.
Component (d1): One or more water-soluble alkali salts (d2) selected from alkali metal carbonates, alkali metal hydrogen carbonates, and alkali metal silicates: Component: aluminosilicate containing alkali metal as a constituent element, constitution One or more compound (d3) component selected from smectite clay containing alkali metal as an element: Tripolyphosphate

The component (d1) is one or more water-soluble alkali salts selected from alkali metal carbonates, alkali metal hydrogencarbonates, and alkali metal silicates. Examples of the component (d1) include one or more water-soluble alkali salts selected from sodium carbonate, potassium carbonate, lithium carbonate, sodium hydrogen carbonate, potassium hydrogen carbonate, and sodium silicate. The component (d1) is preferably at least one water-soluble alkali salt selected from sodium carbonate, potassium carbonate, sodium hydrogen carbonate, and potassium hydrogen carbonate, more preferably sodium carbonate and carbonic acid, from the viewpoint of pH adjustment. One or more water-soluble alkali salts selected from potassium, more preferably sodium carbonate.
In addition, even when the pH at 20 ° C. of a dispersion obtained by dispersing 1 g of the powder cleaning composition for clothing of the present invention in 250 g of water is high, the comfort of hand-washing work is difficult to be reduced, or the cleaning property can be improved. The component (d1) is preferably a water-soluble alkali salt containing an alkali metal silicate. As the alkali metal silicate, sodium silicate is preferable.

The component (d2) is one or more compounds selected from an aluminosilicate containing an alkali metal as a constituent element and a smectite clay containing an alkali metal as a constituent element. The aluminosilicate is a general formula _{^{(M I, M II 1/2)}} m (Al m Si n O 2 (m + n)) · xH compound represented by the ₂ O, sodium ^{M I,} potassium or lithium M ^II is calcium, magnesium or barium, n is a number of 10 or more and 136 or less, m is a number of 10 or more and 90 or less, n ≧ m, and x is a number of 10 or more and 300 or less. It is. M ^I is preferably sodium or potassium, more preferably sodium. M ^II is preferably magnesium or calcium, more preferably magnesium. n is preferably a number from 10 to 20, and m is preferably a number from 10 to 19. For example, zeolite A type, zeolite P type, ferrierite, mordenite and the like can be mentioned. Zeolite A type is preferable from the viewpoint of adjusting pH and improving detergency, or improving the comfort of hand washing work.
Examples of the smectite clay include one or more compounds selected from bentonite and montmorillonite. Bentonite is preferable from the viewpoint of adjusting pH and improving detergency, or from the viewpoint of improving the comfort of hand-washing work.

(D3) The component is tripolyphosphate. As the salt, an alkali metal salt is preferable, and a sodium salt is more preferable.

In the powder cleaning composition for clothing of the present invention, the component (d) is preferably 0.1% by mass or more, more preferably 0.3% by mass or more, from the viewpoint of improving detergency against food-derived oil stains. More preferably, it is 0.5% by mass or more, and from the viewpoint of improving the comfort of hand washing work by adjusting the pH of the cleaning solution, it is preferably 12% by mass or less, more preferably 10% by mass or less, and still more preferably 9%. It is contained in an amount of not more than mass%, more preferably not more than 8 mass%, still more preferably not more than 7 mass%, still more preferably not more than 6 mass%.

<(E) component>
The component (e) of the present invention is one or more compounds selected from the following components (e1) and (e2).
Component (e1): Carboxylic acid having 1 to 10 carboxyl groups and / or salts thereof in the molecule and / or salt thereof (e2) Component: 1 to 10 carboxyl groups or salts in the molecule Or less hydroxycarboxylic acids and / or salts thereof

The carboxylic acid and / or salt thereof in which the number of carboxyl groups or salts thereof in the molecule is 1 or more and 10 or less means carboxylic acids and / or salts thereof that do not contain a hydroxy group in the molecule. In the component (e), that is, in the component (e1) or component (e2), the number of carboxyl groups or salts thereof in the molecule is 1 or more, preferably 2 or more, more preferably 3 from the viewpoint of pH adjustment. From the viewpoint of handling, it is 10 or less, more preferably 8 or less, still more preferably 5 or less, still more preferably 4 or less, and still more preferably 3 or less.
The component (e) of the present invention is preferably a compound containing a non-salt carboxyl group, that is, an acid type compound, from the viewpoint of further improving the comfort of hand-washing work.

As the component (e1), formic acid, acetic acid, oxalic acid, propionic acid, malonic acid, maleic acid, fumaric acid, succinic acid, benzoic acid, phthalic acid, 1,2,3-benzenetricarboxylic acid, 1,2,4 , 5-benzenetetracarboxylic acid (pyromellitic acid) and one or more compounds selected from salts thereof. From the viewpoint of handling, the component (e1) is preferably at least one compound selected from formic acid, acetic acid, benzoic acid, and salts thereof.

(E2) Component includes one or more compounds selected from glycolic acid, lactic acid, citric acid, malic acid, tartaric acid, salicylic acid, and salts thereof. From the viewpoint of handling, the component (e1) is preferably at least one compound selected from lactic acid, citric acid, malic acid, and salts thereof.

(E) Component (e) is preferable because component (b) is less likely to reduce the comfort of hand-washing work.

As the component (e) of the present invention, a compound not containing an aliphatic hydrocarbon group having 11 or more carbon atoms can be mentioned. Such a compound is more clearly distinguished from the compound of component (a4).

(E) The salt of the component is preferably an alkali metal salt such as sodium salt or potassium salt. The component (e) may be a hydrate or an anhydride.

The powder cleaning composition for clothing of the present invention optionally contains the component (e). The component (e) has a tendency to form a complex with the component (b) and reduce the comfort of hand-washing work. Therefore, the powder cleaning composition for clothing of the present invention contains the component (e). The content is limited. In the present invention, the mass ratio of the component (e) to the component (b) (e) component / (b) component is 0 or more, and 0.5 or less, preferably from the viewpoint of improving the comfort of hand-washing work. Is 0.3 or less, more preferably 0.1 or less. The mass ratio of (e) / (b) may be zero.

<Other ingredients, usage, etc.>
The powder cleaning composition for clothing of the present invention can contain a nonionic surfactant. A nonionic surfactant can be mix | blended as a washing | cleaning adjuvant. Although it does not specifically limit as a nonionic surfactant, A polyoxyalkylene alkyl ether type nonionic surfactant is preferable, and the compound of the following general formula (1) is mentioned specifically ,.
R ¹ —O [(EO) _a / (PO) _b ] —H (1)
[Wherein, R ¹ represents an alkyl group or an alkenyl group having 10 or more carbon atoms, preferably 12 or more, and 18 or less, preferably 16 or less, more preferably 14 or less. EO is an ethyleneoxy group and PO is a propyleneoxy group. a is the number average addition mole number and a number of 0 or more and 30 or less, b is the number average addition mole number and represents a number of 0 or more and 10 or less, and the case where both a and b are 0 is excluded. ]

The content of the nonionic surfactant is preferably 0% by mass or more, and preferably 6% by mass or less, more preferably 3% by mass or less, from the viewpoint of improving the detergency in the composition.

The powder cleaning composition for clothing of the present invention can contain an amphoteric surfactant. The amphoteric surfactant is not particularly limited. For example, an alkylamine oxide having an alkyl group having 8 to 18 carbon atoms, carbobetaine, amide betaine, sulfobetaine, amide sulfobetaine, imidazolinium betaine, Examples thereof include phosphobetaine. The content of the amphoteric surfactant is preferably 0.1% by mass or more, and preferably 4% by mass or less, more preferably 2% by mass or less, from the viewpoint of improving foamability in the composition. is there.

The powder cleaning composition for clothing of the present invention can contain a cationic surfactant. The cationic surfactant is not particularly limited, but is preferably a quaternary ammonium type surfactant or a tertiary amine type surfactant, and further an ether bond, an oxyalkylene group, an ester group, or an amide group. A quaternary ammonium type surfactant or a tertiary amine type surfactant having one hydrocarbon group having 6 to 22 carbon atoms, which may be separated by 1 is preferred. The content of the cationic surfactant is preferably 0.1% by mass or more, more preferably 3% by mass or more, and preferably 1% by mass or less from the viewpoint of improving foamability in the composition. is there.

In the powder detergent composition for clothing of the present invention, the proportion of the component (a) in the total amount of the surfactant is preferably 70% by mass or more, more preferably 80% by mass or more, from the viewpoint of improving detergency. More preferably, it is 90 mass% or more, and preferably 100 mass% or less. Moreover, 100 mass% may be sufficient as the ratio of (a) component in the whole quantity of surfactant.

In the powder detergent composition for clothing of the present invention, known components can be blended as components of the detergent within a range not affecting the effects of the present invention. Specifically, bleach (perborate, bleach activator, etc.), recontamination inhibitor, activated clay, softener (bentonite, etc.), reducing agent, fluorescent brightener, foam suppressor (silicone, etc.) ), Fragrance, enzyme (alkali protease, protease, cellulase, peptinase, lipase, dextranase, amylase, etc.), colorant, inorganic silicate other than component (d), and the like.

In addition, it is preferable to include a divalent metal salt from the viewpoint of further improving the solubility of the powder cleaning composition for clothing of the present invention in water or the comfort of hand washing work. The divalent metal salt is preferably a magnesium salt, more preferably one or more compounds selected from magnesium sulfate and magnesium chloride. The content of the divalent metal salt is preferably 0.5% by mass or more and 10% by mass or less in the composition.

In addition, from the viewpoint of further improving the solubility of the powder cleaning composition for clothing of the present invention in water, or from the viewpoint of further improving the detergency, a polymer containing carboxyl groups (the number of carboxyl groups is 20 or more on average) ) Is preferably included. Examples of the polymer containing a carboxyl group include polyacrylic acid or a salt thereof. The weight average molecular weight of polyacrylic acid or a salt thereof is preferably 1500 or more and 10,000 or less. The content of the polymer containing a carboxyl group is preferably 0.1% by mass or more and 5% by mass or less in the composition. The weight average molecular weight of the polymer containing a carboxyl group can be measured using gel permeation chromatography with polyethylene glycol having a known weight average molecular weight as a sample.

The powder cleaning composition for clothing of the present invention is 1 g of the powder cleaning composition for clothing from the viewpoint of improving cleaning power against food-derived oil stains and preventing the component (b) from forming a precipitate. The pH at 20 ° C. of the dispersion of 250 g of water dispersed in 250 g of water is 5.5 or more, preferably 6.0 or more, and from the viewpoint of improving the comfort of hand-washing work, it is 9.5 or less, preferably 9. It is 0 or less, more preferably 8.5 or less, still more preferably 8 or less, still more preferably 7.5 or less, and still more preferably 7.0 or less.
In the measurement of pH, the water in which the powder cleaning composition for clothing is dispersed has an alkalinity of 10 mg / L or more and 300 mg / L or less in order to achieve a predetermined pH corresponding to the variety of water used for washing. Water having a German hardness of 1 ° dH to 50 ° dH can be used.
The powder cleaning composition for clothing according to the present invention has a pH at 20 ° C. of a dispersion in which 1 g of the powder cleaning composition for clothing is dispersed in 250 g of 20 ° C. water having an alkalinity of 100 mg / L and a German hardness of 10 ° dH. Is more preferably within the above range.
The pH of the powder cleaning composition for clothing of the present invention is a pH determined by the pH measurement method described in the Examples, and is a pH measured using a glass electrode.
The powder cleaning composition for clothing of the present invention is a dispersion of 1 g of powder cleaning composition for clothing dispersed in 250 g of water at 20 ° C. having an alkalinity of 100 mg / L, a German hardness of 10 ° dH and a pH of 7.5. The pH at 20 ° C. is more preferably within the above range. In the examples described later, water having such alkalinity, German hardness and pH was used in the method for evaluating detergency.
The alkalinity in the present invention is a value obtained by converting the total amount of carbonic acid, carbonate ion, and hydrogen carbonate ion into the weight of calcium carbonate (calculated as CaCO ₃ ), and the unit is mg / L.

When water having an unknown alkalinity is used, the alkalinity of water can be measured by the following method.
[Measurement method of alkalinity]
Take 100 ml of test water in a 200 ml beaker and add 0.15 ml of bromocresol green-methyl red / ethanol solution (manufactured by Wako Pure Chemical Industries, Ltd.) as an indicator. When there is residual chlorine in the test water, a sodium thiosulfate solution (0.3 w / v%) is added to 100 ml of the test water in advance to remove the residual chlorine. The solution is titrated with 10 mmol / l sulfuric acid with gentle stirring until the color of the solution changes from blue to reddish purple. The alkalinity is calculated by the following formula.
Alkalinity (CaCO ₃ mg / l) = a × 10
Here, a: 10 mmol / l sulfuric acid (ml) required for titration
When the color change due to the indicator is not clear, such as a colored sample, a pH meter is used instead of the indicator, and the amount of 10 mmol / l sulfuric acid (ml) required until the pH value is 4.8 is defined as a.

The powder cleaning composition for clothing of the present invention is suitable for washing by hand. In the case of hand-washing, from the viewpoint of improving the detergency against oil stains, the powder cleaning composition for clothing of the present invention is preferably 1 g or more, more preferably 2 g or more, and further preferably 3 g or more with respect to 1 L of water. And is preferably used at a concentration of 30 g or less, more preferably 20 g or less, and even more preferably 10 g or less.
The powder cleaning composition for clothing of the present invention can be used in a washing machine depending on the purpose. In the case of washing in a washing machine, from the viewpoint of detergency against oil stains and pH at the time of use, the powder cleaning composition for clothing of the present invention is preferably 0.6 g or more, more preferably 1 L of water. It is used in a concentration of 1 g or more, more preferably 1.5 g or more, and preferably 10 g or less, more preferably 7 g or less, still more preferably 3 g or less.

As a cleaning method using the powder cleaning composition for clothes of the present invention, a method for cleaning clothes, wherein the clothes are cleaned using a cleaning liquid obtained by mixing the powder cleaning composition for clothes of the present invention and water. Is mentioned.
The pH of the cleaning liquid is preferably 5.5 or more and 9.5 or less. Examples of the clothing include clothing to which food-derived oil stains are attached.

Further, as a cleaning method using the powder cleaning composition for clothing of the present invention, a cleaning liquid having a pH of 5.5 or more and 9.5 or less obtained by mixing the powder cleaning composition for clothing of the present invention and water is used. In addition, there is a method for washing clothes, in which clothes to which food-derived oil stains adhere are washed.

These washing methods can wash clothes by hand.

The pH of the cleaning solution is preferably 5.5 or more, more preferably 6.0 or more, and preferably 9.5 or less, more preferably 9.0 or less, still more preferably 8.5 or less, and even more preferably 8 Hereinafter, it is more preferably 7.5 or less.
Food-derived oil stains include those containing pigments, and are not particularly limited, but examples include lulla oil.
The washing | cleaning method of this invention can have the process of rinsing the clothing after washing | cleaning with water.
The alkalinity of the water mixed with the composition for preparing the cleaning liquid can be selected from 0 mg / L to 200 mg / L. Further, the German hardness of water mixed with the composition for preparing the cleaning liquid can be selected from 1 ° dH to 50 ° dH. Therefore, the water mixed with the composition includes water having an alkalinity of 0 mg / L to 200 mg / L and a German hardness of 1 ° dH to 50 ° dH.
The pH of the cleaning liquid of the present invention is a pH determined by the pH measurement method described in the examples, and is a pH measured using a glass electrode.

The water used for washing is known to contain carbonic acid, carbonate ion and hydrogen carbonate ion due to the influence of geology and the presence of microorganisms, and alkalinity is used as an indicator of the amount of these ions. Since the pKa of carbonate ion and hydrogen carbonate ion in water is 10.3 and 6.3 (20 ° C.), respectively, the pH of the cleaning solution is different because the pH buffer capacity is around pH 10.3 and 6.3. As pKa is approached, changes in pH are less likely to occur with small amounts of acid and alkali components.

Considering that the pH of water used for general washing is 6 or more and 8 or less, the main factor of alkalinity is bicarbonate ion, and when the washing pH is lowered than water, the pH is around 6.3. Expresses buffering action. Since the alkalinity in the Asian region is generally high and is 50 mg / L or more and 200 mg / L or less, it is water whose pH hardly changes even when an acidic component is added.

The German hardness of water used for washing can be 1 ° dH or higher, 2 ° dH or higher, 3 ° dH or higher, or 5 ° dH or higher. On the other hand, the German hardness of water is 50 ° dH or less, preferably 40 ° dH or less, more preferably 30 ° dH or less, more preferably 25 ° dH or less from the viewpoint of improving detergency.

The German hardness (° dH) in this specification is the concentration of calcium and magnesium in water at a CaCO ₃ equivalent concentration of 1 mg / L (ppm) = about 0.056 ° dH (1 ° dH = 17.8 ppm). Refers to what is represented. Adjustment of the German hardness of the water used for washing can be performed based on a value calculated from the type and amount of the hardness component, as in the method described in the examples of the present specification. In addition, when water of unknown hardness such as tap water is used as the water used for washing, the German hardness of the water is determined by chelate titration method using ethylenediaminetetraacetic acid disodium salt described below. .
The specific measuring method of the German hardness of water in this specification is shown below.
<Measurement method of water hardness in Germany>
〔reagent〕
-0.01 mol / l EDTA-2Na solution: 0.01 mol / l aqueous solution of ethylenediaminetetraacetic acid disodium (Titration solution, 0.01 M EDTA-Na2, manufactured by SIGMA-ALDRICH)
・ Universal BT indicator (Product name: Universal BT, manufactured by Dojindo Laboratories)
・ Ammonia buffer solution for hardness measurement (a solution in which 67.5 g of ammonium chloride is dissolved in 570 ml of 28 w / v% ammonia water and the total amount is made up to 1000 ml with ion-exchanged water)
[Measurement of German hardness]
(1) Collect 20 ml of sample water in a conical beaker with a whole pipette.
(2) Add 2 ml of ammonia buffer for hardness measurement.
(3) Add 0.5 ml of Universal BT indicator. Confirm that the solution after the addition is reddish purple.
(4) While thoroughly shaking the conical beaker, 0.01 mol / l EDTA · 2Na solution is dropped from the burette, and the time when the sample water turns blue is taken as the end point of the titration.
(5) The total hardness is obtained by the following calculation formula.
Hardness (° dH) = T × 0.01 × F × 56.0774 × 100 / A
T: 0.01 mol / l EDTA · 2Na solution titration (mL)
A: Sample volume (20 mL, volume of sample water)
F: 0.01 mol / l EDTA · 2Na solution factor

The form of the cleaning composition for clothing of the present invention is a powder. The method for producing the garment cleaning composition of the present invention as a powder is not particularly limited. For example, extrusion granulation, compression granulation, melt granulation, spray drying granulation, fluidized bed granulation Granulation method, crushing granulation method, stirring granulation method, liquid crystal granulation method, vacuum freeze-drying granulation method, dry neutralization granulation method, etc., and these production methods can be used singly or in combination good.
The bulk density of the powder cleaning composition for clothing of the present invention varies depending on the production method, but is preferably 200 g / L or more, more preferably 300 g / L or more, more preferably 350 g / L or more, and preferably Is 1000 g / L or less, more preferably 900 g / L or less, more preferably 800 g / L or less.
The average particle size of the powder cleaning composition for clothing of the present invention is preferably 100 μm or more, more preferably 150 μm or more, more preferably 200 μm or more, preferably 800 μm or less, more preferably 750 μm or less, and 700 μm or less. Is more preferable.
The spray-drying granulation method is suitable for obtaining a composition having a bulk density or an average particle size in the above range.

The powder cleaning composition for clothing of the present invention is used for washing clothing such as clothing, towels, bedding, textile products for bedding (sheets, pillow covers, etc.). Textile products that can be washed other than these can also be targeted.

<Aspect of the Present Invention>
More specific embodiments of the present invention are exemplified below.

<1>
The following (a) component is 10 mass% or more and 40 mass% or less, (b) component is 0.3 mass% or more and 6 mass% or less in terms of anhydride, (c) component is 10 mass% or more and 80 mass% or less, ( A powder detergent composition for clothing comprising a component d) and a component (e), wherein the mass ratio of the component (e) to the component (b) (e) / component (b) is 0 or more and 0.5 or less. A powder detergent composition for clothing, wherein the dispersion of 1 g of the powder detergent composition for clothing dispersed in 250 g of water has a pH at 20 ° C. of 5.5 or more and 9.5 or less.
(A) Component: Anionic surfactant (b) Component: Water-soluble aluminum salt (c) Component: One or more compounds selected from alkali metal sulfates and alkali metal chlorides (d) Component: The following (d1) One or more alkali agents selected from the component, (d2) component, and (d3) component (d1) component: one or more selected from alkali metal carbonate, alkali metal bicarbonate, and alkali metal silicate Water-soluble alkali salt (d2) component: one or more compound (d3) component selected from aluminosilicate containing alkali metal as constituent element and smectite clay containing alkali metal as constituent element: tripolyphosphate (e) component : One or more compounds selected from the following components (e1) and (e2) (however, the component (a) is excluded)
Component (e1): Carboxylic acid having 1 to 10 carboxyl groups and / or salts thereof in the molecule and / or salt thereof (e2) Component: 1 to 10 carboxyl groups or salts in the molecule Or less hydroxycarboxylic acids and / or salts thereof

<2>
The component (a) is one or more anionic surfactants selected from the following components (a1), (a2), (a3) and (a4), or the following (a1) component, (a2 ) Component and the powder cleaning composition for clothing according to the above <1>, which is at least one anionic surfactant selected from the component (a3).
(A1) Component: Alkyl or alkenyl sulfate ester salt (a2) Component: Polyoxyalkylene alkyl or alkenyl ether sulfate ester salt having an alkyleneoxy group (a3) Component: Anionic surfactant having a sulfonate group (a4) Component: Fatty acids having 12 to 24 carbon atoms or salts thereof (excluding component (e))

<3>
(A1) The component is one or more anionic surfactants selected from alkyl sulfates having 10 to 18 carbon atoms in the alkyl group and alkenyl sulfates having 10 to 18 carbon atoms in the alkenyl group The clothing according to <2>, which is an alkyl sulfate ester salt having an alkyl group with 12 to 14 carbon atoms, preferably sodium alkyl sulfate ester with an alkyl group having 12 to 14 carbon atoms. Powder cleaning composition.

<4>
The component (a2) is a polyoxyalkylene alkylsulfuric acid ester salt having an alkyl group having 10 to 18 carbon atoms, an average alkylene oxide addition mole number of 1 to 3 and an alkenyl group having 10 to 18 carbon atoms, and One or more anionic surfactants selected from polyoxyalkylene alkenyl ether sulfates having an average alkylene oxide addition mole number of 1 to 3, preferably an average ethylene oxide addition mole number of 1 to 2.2. A polyoxyethylene alkyl sulfate salt, preferably a polyoxyethylene alkyl sulfate salt having an alkyl group having 12 to 14 carbon atoms and an average ethylene oxide addition mole number of 1 to 2.2. <2> or preferably the sodium salt thereof. Laundry powder detergent composition according to 3>.

<5>
(A3) is an alkylbenzene sulfonate having an alkyl group having 10 to 18 carbon atoms, an alkenyl benzene sulfonate having an alkenyl group having 10 to 18 carbon atoms, and an alkane having an alkyl group having 10 to 18 carbon atoms. Sulfonate, α-olefin sulfonate having α-olefin part of 10 to 18 carbon atoms, α-sulfo fatty acid salt of fatty acid part having 10 to 18 carbon atoms, and fatty acid part having 10 or more carbon atoms 18 or less, and one or more anionic surfactants selected from α-sulfo fatty acid lower alkyl ester salts having an ester moiety of 1 to 5 carbon atoms, preferably the alkyl group has 11 to 14 carbon atoms. The following alkylbenzene sulfonates, more preferably alkylbenzenes having an alkyl group with 11 to 14 carbon atoms Sodium sulfonate, wherein <2> ~ laundry powder detergent composition according to any one of <4>.

<6>
The <2>, wherein the component (a4) is one or more fatty acids selected from lauric acid, myristic acid, palmitic acid, palmitoleic acid, stearic acid, oleic acid, elaidic acid, linoleic acid and linolenic acid, or a salt thereof. The powder cleaning composition for clothing according to any one of to <5>.

<7>
The component (a) contains at least one anionic surfactant selected from the components (a1) and (a2), and at least one anionic surfactant selected from the components (a3). The powder cleaning composition for clothing according to any one of 2> to <6>.

<8>
<2 wherein the component (a) is at least one anionic surfactant selected from the components (a1) and (a2) and at least one anionic surfactant selected from the components (a3) The powder cleaning composition for clothing according to any one of> to <7>.

<9>
<2> to <8 above, containing as component (a) one or more anionic surfactants selected from component (a1) and one or more anionic surfactants selected from component (a2) > Powder cleaning composition for clothes according to any one of the above.

<10>
The mass ratio (a1) / [(a2) + (a3)] of the content of the component (a1) and the total content of the component (a2) and the component (a3) is preferably 0.1 or more. The powder washing for clothing according to any one of <2> to <9>, preferably 0.2 or more, and preferably 1.5 or less, more preferably 1.2 or less, and still more preferably 1 or less. Agent composition.

<11>
The mass ratio [(a1) + (a2)] / (a3) of the total content of the components (a1) and (a2) and the content of the component (a3) is preferably 0.05 or more, more preferably Is 0.1 or more, more preferably 0.2 or more, and preferably 1 or less, more preferably 0.9 or less, still more preferably 0.8 or less, and still more preferably 0.6 or less. The powder cleaning composition for clothing according to any one of 2> to <10>.

<12>
(B) One or more water-soluble components selected from potassium alum (potassium aluminum sulfate), ammonium alum (ammonium ammonium sulfate), sodium alum (sodium aluminum sulfate), aluminum sulfate, aluminum acetate, aluminum chloride, and aluminum nitrate It is an aluminum salt, preferably one or more water-soluble aluminum salts selected from potassium alum, ammonium alum and sodium alum, and aluminum sulfate, more preferably one selected from potassium alum, sodium alum, and ammonium alum The above water-soluble aluminum salt is more preferably potassium aluminum sulfate 12 hydrate, sodium aluminum sulfate 12 hydrate, sulfuric acid One or more water-soluble aluminum salts selected from ammonium aluminum dodecahydrate and aluminum sulfate 16 hydrate, more preferably potassium aluminum sulfate 12 hydrate, ammonium aluminum sulfate 12 hydrate, and aluminum sulfate The powder cleaning composition for clothing according to any one of the above <1> to <10>, which is at least one water-soluble aluminum salt selected from 16 hydrates.

<13>
(C) The powder cleaning composition for clothing according to any one of <1> to <12>, wherein the component is at least one compound selected from sodium sulfate and sodium chloride, preferably sodium sulfate. object.

<14>
The component (d1) is at least one water-soluble alkali salt selected from sodium carbonate, potassium carbonate, lithium carbonate, sodium bicarbonate, potassium bicarbonate, and sodium silicate, preferably sodium carbonate, potassium carbonate, carbonate One or more water-soluble alkali salts selected from sodium hydrogen carbonate and potassium hydrogen carbonate, more preferably one or more water-soluble alkali salts selected from sodium carbonate and potassium carbonate, more preferably sodium carbonate. The powder cleaning composition for clothing according to any one of <1> to <13>.

<15>
The component (d) is preferably 0.1% by mass or more, more preferably 0.3% by mass or more, still more preferably 0.5% by mass or more, and preferably 12% by mass or less, more preferably 10% by mass. Any one of the above <1> to <14>, further preferably 9% by mass or less, more preferably 8% by mass or less, still more preferably 7% by mass or less, and still more preferably 6% by mass or less. The powder cleaning composition for clothes described in 1.

<16>
The component (e1) is formic acid, acetic acid, oxalic acid, propionic acid, malonic acid, maleic acid, fumaric acid, succinic acid, benzoic acid, phthalic acid, 1,2,3-benzenetricarboxylic acid, 1,2,4, The powder cleaning composition for clothing according to any one of <1> to <15>, which is one or more compounds selected from 5-benzenetetracarboxylic acid (pyromellitic acid) and salts thereof.

<17>
(E2) The component according to any one of <1> to <16>, wherein the component is one or more compounds selected from glycolic acid, lactic acid, citric acid, malic acid, tartaric acid, salicylic acid, and salts thereof. Powder cleaning composition for clothing.

<18>
(E) The powder cleaning composition for clothing according to any one of <1> to <17>, wherein the component is a compound containing a carboxyl group that is not a salt.

<19>
(E) The powder cleaning composition for clothing according to any one of <1> to <17>, wherein the salt of the component is at least one alkali metal salt selected from a sodium salt and a potassium salt.

<20>
(E) The powder cleaning composition for clothing according to any one of <1> to <19>, wherein the component is a hydrate or an anhydride.

<21>
The mass ratio of the component (e) to the component (b) The component (e) / the component (b) is preferably 0.3 or less, more preferably 0.1 or less, or 0, <1> to <20> The powder cleaning composition for clothing according to any one of the above.

<22>
The pH at 20 ° C. of a dispersion obtained by dispersing 1 g of a powder cleaning composition for clothing in 250 g of water is preferably 6.0 or more, and preferably 9.0 or less, more preferably 8.5 or less, even more preferably. The powder cleaning composition for clothing according to any one of <1> to <21>, wherein is 8.0 or less, more preferably 7.5 or less, and even more preferably 7.0 or less.

<23>
The pH at 20 ° C. of a dispersion obtained by dispersing 1 g of a powder cleaning composition for clothing in 250 g of water at 20 ° C. having an alkalinity of 100 mg / L and a German hardness of 10 ° dH, or 1 g of the powder cleaning composition for clothing The pH at 20 ° C. of a dispersion dispersed in 250 g of 20 ° C. water having an alkalinity of 100 mg / L, a German hardness of 10 ° dH and a pH of 7.5 is 5.5 or higher, preferably 6.0 or higher, and 9 The powder cleaning composition for clothing according to any one of <1> to <22>, which is 0.5 or less, preferably 9.0 or less, more preferably 8.0 or less, and even more preferably 7.5 or less. .

<24>
The powder cleaning composition for clothing according to any one of <1> to <23>, which is used for hand-washing laundry.

<25>
In washing by hand, preferably 1 g or more, more preferably 2 g or more, still more preferably 3.0 g or more, and preferably 30 g or less, more preferably 20 g or less, and even more preferably 10 g or less per liter of water. The powder cleaning composition for clothing according to any one of <1> to <24>, which is used in a concentration.

<26>
In washing in a washing machine, it is preferably 0.6 g or more, more preferably 1 g or more, further preferably 1.5 g or more, and preferably 10 g or less, more preferably 7 g or less, and still more preferably, per 1 L of water. The powder cleaning composition for clothing according to any one of <1> to <25>, which is used at a concentration of 3 g or less.

<27>
The component (a) is 10% by mass or more, preferably 12% by mass or more, more preferably 14% by mass or more, still more preferably 15% by mass or more, and 40% by mass or less, preferably 30% by mass or less, more preferably. Is a powder cleaning composition for clothing according to any one of the above <1> to <26>, which is contained in an amount of 28% by mass or less, more preferably 25% by mass or less.

<28>
The component (b) is 0.3% by mass or more in terms of anhydride, preferably 0.4% by mass or more, more preferably 0.5% by mass or more, still more preferably 0.8% by mass or more, and still more preferably. Is a powder cleaning composition for clothing according to any one of the above <1> to <27>, which contains 1% by mass or more and 6% by mass or less, preferably 4% by mass or less.

<29>
The component (c) is 10% by mass or more, preferably 15% by mass or more, more preferably 20% by mass or more, still more preferably 25% by mass or more, still more preferably 30% by mass or more, and even more preferably 35% by mass. Or more, more preferably 40% by mass or more, still more preferably 45% by mass or more, and 80% by mass or less, preferably 70% by mass or less, more preferably 66% by mass or less. 28> The powder cleaning composition for clothes according to any one of 28.

<30>
A method for washing clothing, comprising washing a clothing using a washing liquid obtained by mixing the powder cleaning composition for clothing according to any one of <1> to <29> and water.

<31>
A garment having a food-derived oil stain adhered thereto is washed using a washing liquid obtained by mixing the powder cleaning composition for garments according to any one of <1> to <29> and water. Cleaning method.

<32>
The method for washing clothes according to the above <31>, wherein the food-derived oil stain is a stain containing a pigment, and further is a lager oil.

<33>
The method for washing clothes according to any one of <30> to <32>, further comprising a step of rinsing the washed clothes with water.

<34>
The method for cleaning clothes according to any one of <30> to <33>, wherein the alkalinity of water mixed with the powder cleaning composition for clothes is 0 mg / L or more and 200 mg / L or less.

<35>
The method for cleaning clothes according to any one of <30> to <34>, wherein the German hardness of water mixed with the powder cleaning composition for clothes is 1 ° dH to 50 ° dH.

<36>
Any of <30> to <35>, wherein the water mixed with the powder cleaning composition for clothing is water having an alkalinity of 0 mg / L to 200 mg / L and a German hardness of 1 ° dH to 50 ° dH. The washing | cleaning method of the clothing as described in a crab.

<37>
The method for washing clothes according to any one of the above <30> to <36> (excluding those cited above <26>), wherein the clothes are washed by hand.

<38>
The pH of the cleaning solution is preferably 5.5 or more, more preferably 6.0 or more, and preferably 9.5 or less, more preferably 9.0 or less, still more preferably 8.5 or less, and even more preferably 8 The method for washing clothes according to any one of <30> to <37>, further preferably 7.5 or less.

Examples The following blending components were prepared by kneading so as to become powder washing compositions for clothing shown in Tables 1 and 2. Specifically, component (a) was lyophilized in advance and powdered in a mortar. (B) component, (c) component, (d) component, and (e) component were similarly pulverized using the mortar. These powdered components (a) to (e) were kneaded until uniform, and the other components were added and further stirred sufficiently to obtain a uniform powder. Evaluation was performed by the following method. The results are shown in Tables 1 and 2.

Moreover, the water used in the following evaluation was water containing the following hardness components unless otherwise specified.
The water used for washing and rinsing was prepared as follows. A concentrated stock solution was prepared by dissolving 78.50 g of calcium chloride dihydrate and 73.58 g of magnesium chloride hexahydrate with 1 L of ion exchange water. This concentrated stock solution was calcium / magnesium = 6/4 (molar ratio). The obtained concentrated stock solution was diluted with water for dilution having an alkalinity of 100 mg / L (calculated as CaCO ₃ ) and pH 7.5, adjusted to 10 ° dH, and used as water for washing and rinsing. The dilution water was obtained by adding sodium bicarbonate to ion exchange water to adjust the alkalinity, and adding hydrochloric acid to adjust the pH.

[1] pH measurement method A pH measurement electrode (HORIBA model 6367) was connected to a pH meter (HORIBA pH meter D-51). A saturated potassium chloride aqueous solution (3.33 mol / L) was used as the pH electrode internal solution.

Next, pH 4.01 standard solution (phthalate standard solution), pH 6.86 (neutral phosphate standard solution), and pH 9.18 standard solution (borate standard solution) were put in a 50 mL beaker, respectively, at 25 ° C. For 30 minutes. The pH measurement electrode was immersed in a standard solution adjusted to a constant temperature for 3 minutes, and calibration was performed in the order of pH 6.86 → pH 9.18 → pH 4.01.

A 100 mL pyrex (registered trademark) beaker is filled with 100 mL of water having a German hardness of 10 ° dH, an alkalinity of 100 mg / L (calculated as CaCO ₃ ), and a pH of 7.5, and the temperature becomes constant in a thermostatic bath at 25 ° C. Until the temperature was adjusted. To this water, 0.4 g of the powder cleaning composition for clothes shown in Tables 1 and 2 was added (diluted 250 times), and a bar-like stirrer with a length of 2.5 cm was used and stirred at 800 rpm with a magnetic stirrer for pH measurement. The electrode was immersed for 3 minutes and the pH was measured. The results are shown in the table as the pH of the water dilution. The pH of the water dilution corresponds to the pH at 20 ° C. of a dispersion obtained by dispersing 1 g of the powder cleaning composition for clothing in 250 g of water.

[2] Solubility Evaluation 2 g of the powder detergent composition shown in Tables 1 and 2 was used with 1 L of water having a German hardness of 10 ° dH, an alkalinity of 100 mg / L (calculated as CaCO ₃ ), pH 7.5 and 25 ° C. Mix for 1 minute in a 2 L beaker. A rod-like stirrer having a length of 5 cm was stirred and dissolved with a magnetic stirrer at 800 rpm. Then, after filtering the whole quantity of said aqueous solution using a metal mesh with an opening of 0.74 mm, it dried at 105 degreeC for 2 hours, and measured the weight (g) of the residue amount which remained on the metal mesh. The dissolution rate was calculated by the following formula to evaluate the solubility of the powder cleaning composition. A dissolution rate of 90% or more is acceptable, and a higher numerical value is more preferable.
Dissolution rate (%) = [[Amount of powder cleaning composition before dissolution (2 g) −Amount of residue after dissolution (g)] / (Amount of powder cleaning composition before dissolution (2 g))] × 100
A higher dissolution rate (%) value is preferred. In this evaluation, the dissolution rate (%) is 90% or more.

[3] Evaluation method of detergency 8 g of the powder detergent composition shown in Tables 1 and 2 with respect to 2 L of water having a German hardness of 10 ° dH, an alkalinity of 100 mg / L (calculated as CaCO ₃ ), pH 7.5 and 25 ° Was diluted and dissolved in 5.5 L of polypropylene cage. Thereafter, one undergarment sewn with five litter oil-contaminated cloths prepared as described below and two underwears of the same size for adjusting the bath ratio were put, and the whole was stirred. The bath ratio was 8. The underwear used was Gunze YG (round neck T-shirt, M size, 100% cotton). Then, the contaminated cloth was equally rubbed by hand for 5 minutes. After rinsing twice with 3 L of water similar to the water used to dilute the composition, it was squeezed by hand to dehydrate and dried indoors. The cleaning rate was measured by the following formula.
Washing rate (%) = [(reflectance after washing−reflectance before washing) / (reflectance of white cloth−reflectivity before washing)] × 100
The white cloth is a non-contaminated cloth of a cotton knitted cloth (cotton knit not sill, 100% cotton, Yagami Shoten) used for the preparation of the ra oil-contaminated cloth.
The reflectance was measured with NDR-10DP manufactured by Nippon Denshoku Industries Co., Ltd. using a 460 nm filter. The cleaning rate is 70% or more, and the higher the value, the more preferable.

<Preparation of ra oil-contaminated cloth>
Apply 0.1 mL of commercially available S & B oil oil (manufactured by SBI Foods Co., Ltd., purchased in September 2014) uniformly onto a 6 cm x 6 cm cotton knitted fabric (cotton knitted silk, 100% cotton, Tanigami store) It was dried at 25 ° C. and humidity 65 RH% for 15 hours. This was used for the test.

[4] Evaluation of the comfort of hand-washing work The comfort of the hand-washing work was evaluated based on the feel of the hand during and after washing in the “method for evaluating washing power” of [3] above.
Specifically, in the “detergent evaluation method” in [3] above,
(I) Hand feel during scrubbing,
(II) After the rubbing, rinsing and dehydration, the hand feeling immediately after wiping the hand with a towel, and (III) the hand feeling after 2 minutes after wiping the hand with the towel,
The feel of the hand was evaluated for the three periods. Ten panelists made judgments based on the following criteria.
The above criteria (I) were “very uncomfortable” or “slightly uncomfortable” when touching the hand, and “very comfortable” or “slightly comfortable” when close to the feel of water. In addition, the criteria of the above (II) and (III) are “very uncomfortable” or “slightly uncomfortable” when there is a residual feeling of the cleaning composition component, and no residual feeling of the cleaning composition component. Was “very comfortable” or “slightly comfortable”.
The results of three periods were collected from one panelist and the average value was obtained. The average value was collected for 10 persons, and the average value was further determined and shown in the table. An average value of 2.5 or less was accepted. The smaller the average value, the more preferable the touch.
5: Very uncomfortable 4: Slightly uncomfortable 3: Neither 2: Slightly comfortable 1: Very comfortable

[5] Compounding component (a) component: AS-Na: Sodium lauryl sulfate ester, Emar 0 (manufactured by Kao Corporation)
AES-Na (1): polyoxyethylene having a linear primary alkyl group having 10 to 16 carbon atoms (average addition mole number 2) alkyl ether sulfate sodium ester, Emar 270S (manufactured by Kao Corporation)
AES-Na (2): polyoxyethylene having a linear primary alkyl group having 12 carbon atoms (average addition mole number 3) sodium alkyl ether sulfate, Emar 20C (manufactured by Kao Corporation)
・ LAS-Na: Sodium laurylbenzenesulfonate, Neoperex G-15 (manufactured by Kao Corporation)

(B) Component potassium alum: Potassium aluminum sulfate 12 hydrate (manufactured by Wako Pure Chemical Industries, Ltd.)
・ Sodium alum: Sodium aluminum sulfate 12 hydrate (manufactured by Wako Pure Chemical Industries, Ltd.)
・ Ammonium alum: Aluminum ammonium sulfate 12 hydrate (Wako Pure Chemical Industries, Ltd.)
・ Aluminum sulfate: Aluminum sulfate (anhydrous) (Wako Pure Chemical Industries, Ltd.)

(C) Ingredients Sodium sulfate: Wako Pure Chemical Industries, Ltd. Sodium chloride: Wako Pure Chemical Industries, Ltd.

Component (d) Sodium carbonate: Wako Pure Chemical Industries, Ltd. Sodium silicate: No. 2 sodium silicate Fuji Chemical Co., Ltd. Zeolite: Zeobuilder, Zeobuilder Co., median diameter: 3.0 μm

(E) Ingredients Sodium acetate: Wako Pure Chemical Industries, Ltd. Citric anhydride: Wako Pure Chemical Industries, Ltd. Trisodium citrate: Wako Pure Chemical Industries, Ltd.

Other ingredients ・ Alkaline protease: KAP, manufactured by Kao Corporation, protein content: 100 mg / granulated granulated substance of enzyme granulated product: activated clay: Galeon Earth NV, manufactured by Mizusawa Chemical Co., Ltd., magnesium sulfate: sulfuric acid Magnesium heptahydrate manufactured by Wako Pure Chemical Industries, Ltd. Sodium polyacrylate (weight average molecular weight 8000)
・ Perfume

In the table, the content of component (b) is the content in terms of anhydride.

Claims (13)

1. The following (a) component is 10 mass% or more and 40 mass% or less, (b) component is 0.3 mass% or more and 6 mass% or less in terms of anhydride, (c) component is 10 mass% or more and 80 mass% or less, ( A powder detergent composition for clothing comprising a component d) and a component (e), wherein the mass ratio of the component (e) to the component (b) (e) / component (b) is 0 or more and 0.5 or less. A powder detergent composition for clothing, in which a dispersion obtained by dispersing 1 g of a powder detergent composition for clothing in 250 g of water has a pH at 20 ° C. of 5.5 to 9.5.
   (A) Component: Anionic surfactant (b) Component: Water-soluble aluminum salt (c) Component: One or more compounds selected from alkali metal sulfates and alkali metal chlorides (d) Component: The following (d1) One or more alkali agents selected from the component, (d2) component, and (d3) component (d1) component: one or more selected from alkali metal carbonate, alkali metal bicarbonate, and alkali metal silicate Water-soluble alkali salt (d2) component: one or more compound (d3) component selected from aluminosilicate containing alkali metal as constituent element and smectite clay containing alkali metal as constituent element: tripolyphosphate (e) component : One or more compounds selected from the following components (e1) and (e2) (however, the component (a) is excluded)
   Component (e1): Carboxylic acid having 1 to 10 carboxyl groups and / or salts thereof in the molecule and / or salt thereof (e2) Component: 1 to 10 carboxyl groups or salts in the molecule Or less hydroxycarboxylic acids and / or salts thereof
2. The powder cleaning agent for clothes according to claim 1, wherein the component (a) is at least one anionic surfactant selected from the following components (a1), (a2), (a3) and (a4): Composition.
   (A1) Component: Alkyl or alkenyl sulfate ester salt (a2) Component: Polyoxyalkylene alkyl or alkenyl ether sulfate ester salt having an alkyleneoxy group (a3) Component: Anionic surfactant having a sulfonate group (a4) Component: Fatty acids having 12 to 24 carbon atoms or salts thereof (excluding component (e))
3. The component (a) contains at least one anionic surfactant selected from the components (a1) and (a2) and at least one anionic surfactant selected from the components (a3). The powder cleaning composition for clothing according to 2.
4. The mass ratio [(a1) + (a2)] / (a3) of the total content of the component (a1) and the component (a2) and the content of the component (a3) is 0.05 or more and 1 or less. The powder cleaning composition for clothes according to claim 3.
5. Component (a) is an anionic surfactant comprising one or more anionic surfactants selected from components (a1) and one or more anionic surfactants selected from components (a2). 4. The powder cleaning composition for clothing according to any one of 4.
6. The mass ratio (a1) / [(a2) + (a3)] of the content of the component (a1) and the total content of the component (a2) and the component (a3) is from 0.1 to 1.5 The powder cleaning composition for clothing according to any one of claims 2 to 5, wherein
7. The powder cleaning composition for clothing according to any one of claims 1 to 6, wherein the component (b) is at least one water-soluble aluminum salt selected from potassium alum, sodium alum, ammonium alum, and aluminum sulfate. .
8. The component (e1) is formic acid, acetic acid, oxalic acid, propionic acid, malonic acid, maleic acid, fumaric acid, succinic acid, benzoic acid, phthalic acid, 1,2,3-benzenetricarboxylic acid, 1,2,4, The powder cleaning composition for clothing according to any one of claims 1 to 7, which is one or more compounds selected from 5-benzenetetracarboxylic acid and salts thereof.
9. The powder for clothing according to any one of claims 1 to 8, wherein the component (e2) is at least one compound selected from glycolic acid, lactic acid, citric acid, malic acid, tartaric acid, salicylic acid, and salts thereof. Cleaning composition.
10. 10. The powder cleaning composition for clothing according to any one of claims 1 to 9, which is used for washing by hand.
11. A method for washing clothing, comprising washing the clothing using a washing liquid obtained by mixing the powder cleaning composition for clothing according to any one of claims 1 to 10 and water.
12. The method for washing clothes according to claim 11, wherein the clothes are clothes to which oil stains derived from foods adhere.
13. The method for washing clothes according to claim 11 or 12, wherein the clothes are washed by hand.