JP6633123B2 - Powder detergent composition for clothing - Google Patents

Description

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

  Washing methods for textiles such as clothing are roughly classified into two types: hand washing and washing machine washing. In recent years, the use of washing machines in the Asian region has been increasing, but hand washing has been widely performed due to detergency, economic efficiency, cultural background, washing consciousness, and the like. The hand-washing washing is suitable for washing not only the whole stains attached to the fibers but also the stains such as partial spills, since the operator can wash while checking the degree of the stains. In hand-washing, many workers wash clothes using a detergent, for example, a washing liquid obtained by dissolving a powdered detergent in water.

  2. Description of the Related Art Powder detergents for clothing are known which contain a surfactant as a main component for cleaning and an alkaline agent, a chelating agent and the like as a cleaning auxiliary component. Patent Literatures 1 to 8 disclose powder detergent compositions for clothing containing surfactants such as anionic surfactants, metal salts such as magnesium salts, zeolites and the like.

JP 2017-014495A JP-A-2015-214669 JP 2014-141641 A U.S. Pat. No. 4,542,012 US Patent Application Publication No. 2002/161258 WO 99/19430 JP-T-2003-508587 International Publication No. 95/02029

Hand-washing is an operation that involves physical and mental fatigue, and it is desired that the operator can finish the operation as quickly as possible. An operator sometimes performs hand-washing after immersing clothing in a washing liquid and leaving it for a certain period of time during hand-washing. At that time, the worker confirms that dirt from the clothing has been transferred to the cleaning liquid, and then shifts to hand washing. That is, if it is possible to quickly confirm that dirt is transferred from the clothing to the washing liquid by immersion, the time until the subsequent hand washing operation is shortened, which leads to a reduction in the time for the entire washing.
The present invention provides a powder detergent composition for clothing, which allows an operator to immediately recognize that dirt is released in a washing solution in which clothing is immersed.

In the present invention, the following component (a) is 3% by mass to 30% by mass, component (b) is 1% by mass to 10% by mass, component (c) is 0.1 mg / kg to 10,000 mg / kg, d) containing 3% by mass or more and 20% by mass or less of the component, and (e) containing 1% by mass or more and 20% by mass or less,
The mass ratio of the content of the component (b) to the content of the component (e) [content of the component (b)] / [content of the component (e)] is 0.08 or more and 10 or less. ,
The mass ratio of the content of the component (d) to the content of the component (e) [content of the component (d)] / [content of the component (e)] is 0.20 or more and 20 or less. ,
The present invention relates to a powder detergent composition for clothing.
(A) Component: Anionic surfactant (b) Component: One or more compounds selected from magnesium sulfate, magnesium chloride, aluminum sulfate, and aluminum chloride (c) Component: Group 2 to Group 16 of the Periodic Table of the Elements and Fourth Period And a metal element (d) component belonging to the fifth period: at least one inorganic polymer selected from polysilicate, polyborate and polyphosphate (e) component: at least one compound selected from zeolite and bentonite

  The present invention also relates to a washing method for washing clothes using a washing liquid containing the powdery detergent composition for clothes of the present invention and water.

  ADVANTAGE OF THE INVENTION According to this invention, the powder detergent composition for clothing which an operator can visually recognize that dirt is released in the washing | cleaning liquid which immersed clothing is provided quickly. When the dirty clothing is immersed in the cleaning liquid using the powder cleaning agent composition for clothing of the present invention, the worker can quickly confirm that the dirt from the clothing is transferred to the cleaning liquid. Hereinafter, in the present specification, enhancing the effect of the above-described invention or enhancing the effect of the above-described invention may be referred to as having excellent visibility of dirt release or further enhancing the visibility of dirt release.

<Powder detergent composition for clothing>
[(A) component]
The component (a) 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 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

  As the component (a1), more specifically, at least one kind selected from an alkyl sulfate having 10 to 18 carbon atoms in an alkyl group and an alkenyl sulfate having 10 to 18 carbon atoms in an alkenyl group. Anionic surfactants are included. From the viewpoint of further increasing the visibility of release of dirt, the component (a1) is preferably one or more anionic surfactants selected from alkyl sulfates having 12 to 14 carbon atoms in the alkyl group. One or more anionic surfactants selected from sodium alkylsulfate esters having a number of 12 or more and 14 or less are more preferred.

  As the component (a2), more specifically, a polyoxyalkylene alkyl ether sulfate salt having an alkyl group having 10 to 18 carbon atoms and an average alkylene oxide addition mole number of 1 to 3 and an alkenyl group having a carbon number of One or more anionic surfactants selected from polyoxyalkylene alkenyl ether sulfates having 10 to 18 and an average alkylene oxide addition mole number of 1 to 3 are exemplified. Examples of the oxyalkylene group include an oxyalkylene group 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 further increasing the visibility of the release of dirt, the component (a2) is preferably a polyoxyethylene alkyl ether sulfate having an average ethylene oxide addition mole number of 1 or more and 2.2 or less, and has 12 or more carbon atoms in the alkyl group. Polyoxyethylene alkyl ether sulfate salts having an average ethylene oxide addition mole number of 14 or less and 14 or less are more preferred, and their sodium salts are still more preferred.

The anionic surfactant having a sulfonate group as the component (a3) refers to an anionic surfactant having a sulfonate as a hydrophilic group.
As the component (a3), more specifically, an alkyl benzene 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 a carbon number of the alkyl group Is an alkane sulfonate having a carbon number of 10 or more and 18 or less, an α-olefin sulfonate having an α-olefin portion having a carbon number of 10 or more and 18 or less, an α-sulfofatty acid salt having a carbon number of 10 or more and 18 or less and a fatty acid portion. Has at least 10 and at most 18 carbon atoms, and at least one anionic surfactant selected from α-sulfofatty acid lower alkyl ester salts having at least 1 and at most 5 carbon atoms in the ester portion. From the viewpoint of excellent visibility of soil release, the component (a3) is preferably an alkylbenzene sulfonate having an alkyl group having 11 to 16 carbon atoms, and a sodium alkylbenzene sulfonate having an alkyl group having 11 to 16 carbon atoms. 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 salt thereof as a hydrophilic group. The component (a4) of the present invention is a compound different from the component (e). More specifically, the component (a4) includes lauric acid, myristic acid, palmitic acid, palmitoleic acid, stearic acid, oleic acid, elaidic acid, linoleic acid, linolenic acid, and salts thereof.

  As the salt of the anionic surfactant as the component (a), an alkali metal salt is preferable, a sodium salt or a potassium salt is more preferable, and a sodium salt is further more preferable.

The powder detergent composition for clothing of the present invention preferably contains, as the component (a), one or more anionic surfactants selected from the component (a3) from the viewpoint of further enhancing the visibility of soil release. .
The powder detergent composition for clothing of the present invention contains, as a component (a), an alkylbenzene sulfonate having an alkyl group having 10 to 18 carbon atoms and a carbon number of an alkenyl group, from the viewpoint of further enhancing the visibility of soil release. More preferably contains one or more anionic surfactants selected from alkenylbenzenesulfonates of 10 or more and 18 or less.
The powder detergent composition for clothing of the present invention comprises, as a component (a), at least one selected from alkyl benzene sulfonates having 10 to 18 carbon atoms in the alkyl group, from the viewpoint of further enhancing the visibility of soil release. It is more preferred to contain an anionic surfactant of In the powder detergent composition for clothing of the present invention, the proportion of the alkylbenzene sulfonate having an alkyl group having 10 to 18 carbon atoms is 50% by mass or more in all the components (a) in the detergent composition. It is preferably at least 60% by mass, more preferably at least 70% by mass, and preferably at most 100% by mass.

[(B) component]
The component (b) is at least one compound selected from magnesium sulfate, magnesium chloride, aluminum sulfate and aluminum chloride. The component (b) may be a hydrate or an anhydride. As the component (b), a powdery or granular material can be used. The hydrate of magnesium sulfate as the component (b) includes magnesium sulfate monohydrate, magnesium sulfate hexahydrate, magnesium sulfate heptahydrate, and magnesium sulfate dodecahydrate.

  From the viewpoint of further enhancing the visibility of release of dirt, the component (b) preferably contains one or more compounds selected from magnesium sulfate and magnesium chloride. From the viewpoint of further enhancing the visibility of release of dirt, the proportion of one or more compounds selected from magnesium sulfate and magnesium chloride in the component (b) is preferably 50% by mass or more, more preferably 60% by mass or more, and 80% by mass or more. It is more preferably at least 100% by mass, and more preferably at most 100% by mass, and may be 100% by mass.

[(C) component]
The component (c) is a metal element belonging to Groups 2 to 16 of the periodic table and belongs to the fourth and fifth periods. By including a predetermined amount of the specific metal element which is the component (c) of the present invention in the powder detergent composition for clothing of the present invention, the release of dirt by using the component (b) and the component (c) together Can be further improved. The component (c) is usually contained in the composition as a compound containing the predetermined metal element.

  The metal element of the component (c), which belongs to Group 2 to Group 16 of the periodic table and is selected from the fourth and fifth periods, is selected from iron, zinc, manganese and strontium from the viewpoint of further improving the visibility of soil release. One or more metal elements are preferred.

  As the component (c) contained in the composition, one or more compounds containing a metal element selected from iron, zinc, manganese, and strontium can be used.

  As the component (c) contained in the composition, an oxide of a metal selected from iron, zinc, manganese, and strontium, a sulfate of the metal, and at least one compound selected from chlorides of the metal may be used. it can.

  As the component (c) contained in the composition, one or more compounds selected from iron oxide, iron chloride, zinc oxide, manganese oxide, and strontium oxide can be used.

  The powder detergent composition for clothing of the present invention preferably contains a compound containing iron, more preferably iron oxide, as the component (c) contained in the composition.

  The powder detergent composition for clothing of the present invention may be a composition containing a compound containing a metal element as a component (c) [hereinafter, referred to as a component (c ')]. The component (c ') is the above-mentioned compound that can be used as the component (c), and preferred compounds are also the same. The content of the component (c ′) in the composition is adjusted so that the content of the component (c) in the composition is in the range described below.

[(D) component]
The component (d) is at least one inorganic polymer selected from polysilicate, polyborate and polyphosphate.

  Here, the polysilicate refers to a silicate containing a polymerization mode in which an adjacent silicon atom is bonded to another silicon atom via an oxygen atom. The polysilicate can be obtained, for example, as a polymer of one or more compounds selected from orthosilicate, metasilicate and metadisilicate. Examples of the salt include alkali metal salts such as a sodium salt and a potassium salt.

  Further, the polyborate refers to a borate containing a polymerization mode in which an adjacent boron atom is bonded to another boron atom via an oxygen atom. The polyborate can be obtained, for example, as a polymer of one or more compounds selected from orthoborates, metaborates, diborates, and tetraborates. Examples of the salt include alkali metal salts such as a sodium salt and a potassium salt.

  Further, the polyphosphate refers to a phosphate including a polymerization mode in which an adjacent phosphorus atom is bonded to another phosphorus atom via an oxygen atom. The polyphosphate may be, for example, a pyrophosphate or a tripolyphosphate, and may be a polymer of one or more compounds selected from orthophosphate, metaphosphate, trimetaphosphate, pyrophosphate and tripolyphosphate. You can also get. Examples of the salt include alkali metal salts such as a sodium salt and a potassium salt.

  For example, in the case of polysilicic acid, from the viewpoint of further improving the visibility of soil release, the total amount of Q3 and Q4 in the polysilicate relative to the total amount of Q0, Q1, Q2, Q3 and Q4 The proportion of the amount is preferably at least 50% by mass, more preferably at least 70% by mass, even more preferably at least 90% by mass, even more preferably at least 99% by mass, and 100% by mass. It is as follows. Here, the Q0 body, Q1 body, Q2 body, Q3 body, and Q4 body represent a silicate structure. When the number of one silicon atom in a silicate bonded to an adjacent silicon atom through an oxygen atom is N, N = 4, that is, one silicon atom is converted into four silicon atoms through an oxygen atom. A structure bonded to an atom is called a Q4 body. When N = 3, it is called Q3 body, when N = 2, it is called Q2 body, when N = 1, it is called Q1 body, and when it does not contribute to polymerization at all, it is called Q0 body. That is, when one silicon atom or boron atom or phosphorus atom (hereinafter, referred to as a central atom) in an inorganic polymer is bonded to another adjacent central atom via an oxygen atom as N, A structure in which N is 4 is a Q4 body, a structure in which N is 3 is a Q3 body, a structure in which N is 2 is a Q2 body, a structure in which N is 1 is a Q1 body, and a structure in which N is 0. Let the body be the Q0 body. That is, a large ratio of the Q3 body and the Q4 body means that the polysilicic acid has a three-dimensional structure. In the present invention, as the ratio of the Q3 and Q4 bodies in the polysilicate including the Q0, Q1, Q2, Q3 and Q4 bodies increases, the visibility of dirt release can be further improved. In the present invention, a compound partially containing the Q0 form is also referred to as a polysilicate.

As described in Journal of Colloid and Interface Science 352 (2010) 309-315, ²⁹ Si-NMR measurement is performed and the Q0 form is sequentially determined from the low magnetic field side as described in Journal of Colloid and Interface Science 352 (2010) 309-315. , Q1 body, Q2 body, Q3 body and Q4 body, and the sum of the peak areas of the Q3 body and Q4 body divided by the sum of the peak areas of the Q0 body, Q1 body, Q2 body, Q3 body and Q4 body is 100. Can be obtained by multiplying Similarly, polyborates and polyphosphates can be determined by measuring NMR of boron atoms or phosphorus atoms.

  The powder detergent composition for clothing of the present invention preferably contains a polysilicate as the component (d).

  The salt of the inorganic polymer as the component (d) is preferably an alkali metal salt, more preferably a sodium salt or a potassium salt, and further preferably a sodium salt.

[(E) component]
The component (e) is at least one compound selected from zeolite and bentonite.

  Zeolites are also called crystalline aluminosilicates. As specific zeolites, crystalline aluminosilicates such as A-type, X-type and P-type zeolites can be contained. The average primary particle size is preferably 0.1 μm or more, more preferably 1 μm or more, and preferably 10 μm or less, more preferably 5 μm or less. Preferred as the crystalline aluminosilicate is A-type zeolite (for example, trade name "Toyobuilder": manufactured by Tosoh Corporation, oil absorption capacity according to JIS K 5101 method: 40 mL / 100 g or more). In addition, P type (for example, trade name “Doucil A24”, “ZSEO64”, etc .; all manufactured by Crosfield; oil absorption capacity 60 to 150 mL / 100 g), X type (for example, trade name “WessalithXD”, manufactured by Degussa) Oil absorbing capacity: 80 to 100 mL / 100 g), and hybrid zeolites described in WO 98/42622 are also preferable.

  Bentonite preferably has an ion exchange capacity of 50 to 100 meq / 100 g. Examples of the bentonite include (e1) montmorillonite group mineral clay (smectitic clay) selected from the group consisting of alkali metal or alkaline earth metal montmorillonite, saponite or hectorite, (e2) illite, (e3) attapulgite and (E4) One or more selected from kaolinite. Bentonite that has been granulated can be used. For example, reference can be made to the granulated clay mineral disclosed in JP-A-2008-189719.

  The powder detergent composition for clothing of the present invention preferably contains zeolite as the component (e) from the viewpoint of further improving the visibility of soil release.

(Composition, optional components, etc.)
The powder detergent composition for clothing of the present invention contains the component (a) in an amount of from 3% by mass to 30% by mass. The content of the component (a) in the composition is 3% by mass or more, preferably 10% by mass or more, more preferably 15% by mass or more from the viewpoint of further improving the cleaning performance. From the viewpoint of further enhancement, the content is 30% by mass or less, preferably 28% by mass or less, more preferably 25% by mass or less, still more preferably 20% by mass or less, and still more preferably 18% by mass or less.

  The powder detergent composition for clothing of the present invention contains the component (b) in an amount of 1% by mass to 10% by mass. The content of the component (b) in the composition is 1% by mass or more, preferably 2% by mass or more, more preferably 3% by mass or more, and still more preferably 5% by mass, from the viewpoint of further enhancing the visibility of soil release. % Or more and 10% or less, preferably 8% or less, more preferably 6% or less.

The powder detergent composition for clothing of the present invention contains the component (c) in an amount of 0.1 mg / kg to 10,000 mg / kg. The content of the component (c) in the composition is 0.1 mg / kg or more, more preferably 1 mg / kg or more, still more preferably 10 mg / kg or more, further from the viewpoint of further enhancing the visibility of soil release. Preferably it is 50 mg / kg or more, and 10,000 mg / kg or less, preferably 5000 mg / kg or less, more preferably 3000 mg / kg or less.
The content of the component (c) in the powder detergent composition for clothing of the present invention may be calculated as the amount of the compound containing the component (c) when the composition is manufactured. In order to confirm the content of the component (c) based on the composition after blending the compound containing the component (c), for example, the composition may be calculated from a calibration curve by ICP emission spectrometry using the composition as a sample. . The powder detergent composition for clothing of the present invention may contain the component (c ′), and the content thereof may be in the above range as the metal atom of the component (c).

  The powder detergent composition for clothing of the present invention contains the component (d) in an amount of from 3% by mass to 20% by mass. The content of the component (d) in the composition is 3% by mass or more, preferably 5% by mass or more, more preferably 7% by mass or more, and 20% by mass from the viewpoint of further improving the visibility of soil release. Or less, preferably 18% by mass or less, more preferably 15% by mass or less.

  The powder detergent composition for clothing of the present invention contains the component (e) in an amount of from 1% by mass to 20% by mass. The content of the component (e) in the composition is 1% by mass or more, preferably 3% by mass or more, more preferably 5% by mass or more, and 20% by mass from the viewpoint of further improving the visibility of soil release. Or less, preferably 17% by mass or less, more preferably 14% by mass or less.

  The powder detergent composition for clothing according to the present invention comprises the content of the component (b) and the content of the component (e) in a mass ratio of [content of the component (b)] / [content of the component (e). Amount] is 0.08 or more and 10 or less. The mass ratio of [content of component (b)] / [content of component (e)] is 0.08 or more, preferably 0.10 or more, more preferably 0.1 or more, from the viewpoint of visibility of soil release. It is 20 or more, further preferably 0.30 or more, still more preferably 0.35 or more, and 10 or less, preferably 5 or less, more preferably 2 or less.

  The powder detergent composition for clothing of the present invention contains [(d) component content] / [(e) component content, which is the mass ratio of the content of component (d) to the content of component (e). Is 0.20 or more and 20 or less. The mass ratio of [content of component (d)] / [content of component (e)] is 0.20 or more, preferably 0.5 or more, and more preferably 0.5 or more, from the viewpoint of visibility of soil release. It is 7 or more and 20 or less, preferably 15 or less, more preferably 10 or less.

  The powder detergent composition for clothing of the present invention is a mass ratio of the total content of Q3 and Q4 in component (d) to the content of component (e) [total content of Q3 and Q4 Amount] / [content of component (e)] is preferably 0.2 or more and 20 or less. The mass ratio of [total content of Q3 body and Q4 body] / [content of component (e)] is preferably 0.2 or more, more preferably 0.5 or more, from the viewpoint of visibility of soil release. It is even more preferably 0.7 or more, and preferably 20 or less, more preferably 15 or less, and still more preferably 10 or less.

  The powder detergent composition for clothing of the present invention comprises other components known in the field of clothing detergents, such as bleaching agents (perborate, bleach activator, etc.), re-staining inhibitors, reducing agents (sulfites). Etc.), a fluorescent whitening agent, a foam inhibitor (silicone, etc.), a fragrance, an enzyme (cellulase, protease, peptinase, lipase, dextranase, amylase, etc.), a coloring agent and the like.

  In the powder detergent composition for clothing of the present invention, the pH of a 1% by mass aqueous solution measured at 20 ° C. described in JIS K 3362: 2008 is preferably 6.0 or more, more preferably 7. It is 0 or more, further preferably 7.5 or more, and preferably 11.0 or less, more preferably 10.7 or less, and still more preferably 10.5 or less. As the water of the aqueous solution, ion exchange water is used.

  The powder detergent composition for clothing of the present invention has a water content of preferably 1% by mass or more, more preferably 1% by mass or more, in terms of solubility and productivity, according to JIS K 3362: 2008. It is 2% by mass or more, and preferably 10% by mass or less, more preferably 8% by mass or less, and further preferably 6% by mass or less.

  From the viewpoint of solubility, the powder detergent composition for clothing of the present invention has an apparent density measured by a method specified in JIS K 3362: 2008, preferably 600 g / L or less, more preferably 550 g / L or less. More preferably, it is 500 g / L or less. Further, from the viewpoint of convenience and reduction of waste, the apparent density is preferably 300 g / L or more, more preferably 350 g / L or more, and further preferably 380 g / L or more.

  The powder detergent composition for clothing of the present invention has an average particle diameter of preferably 250 μm or more, more preferably 300 μm or more, further preferably 350 μm or more, and preferably 650 μm or less, from the viewpoint of solubility. Preferably it is 600 μm or less, more preferably 550 μm or less. Here, the average particle size is determined from the mass fraction based on the size of the sieve after vibrating for 5 minutes using a standard sieve of JIS Z8801.

  The powder detergent composition for clothing of the present invention may be surface-modified with a surface coating agent in view of fluidity and non-caking properties.

  The powder detergent composition for clothing of the present invention can be produced by a known method. For example, spray drying, dry neutralization, dry granulation, dry blending, fluid bed drying, thin film drying, extrusion granulation, tumbling granulation, stirring granulation, compaction granulation, It can be produced by applying a surfactant-supporting method or a method selected and combined from these methods.

  The powder detergent composition for clothing of the present invention is suitable for hand washing. Examples of the hand washing method include a method of rubbing clothes with hands, a method of rubbing clothes with hands, and a method of rubbing clothes with a tool such as a brush in which a fiber bundle is planted.

<How to wash clothing>
Examples of the washing method using the powder detergent composition for clothing of the present invention include a washing method in which clothing is washed using a washing liquid containing the powder detergent composition for clothing of the present invention and water.

  The content of the component (a) in the cleaning solution is preferably 120 mg / kg or more, more preferably 400 mg / kg or more, still more preferably 600 mg / kg or more, and more preferably, from the viewpoint of cleaning performance and visibility of soil release. Is 1200 mg / kg or less, more preferably 1120 mg / kg or less, and still more preferably 1000 mg / kg or less.

  The content of the component (b) in the washing solution is preferably 40 mg / kg or more, more preferably 80 mg / kg or more, further preferably 120 mg / kg or more, and preferably 400 mg / kg from the viewpoint of the visibility of soil release. kg or less, more preferably 320 mg / kg or less, still more preferably 240 mg / kg or less.

  The content of the component (c) in the cleaning solution is preferably 0.0004 mg / kg or more, more preferably 0.004 mg / kg or more, further preferably 0.04 mg / kg or more, from the viewpoint of the visibility of soil release. And it is preferably 40 mg / kg or less, more preferably 20 mg / kg or less, and still more preferably 12 mg / kg or less.

  The content of the component (d) in the cleaning solution is preferably 120 mg / kg or more, more preferably 200 mg / kg or more, further preferably 280 mg / kg or more, and preferably 800 mg / kg from the viewpoint of the visibility of soil release. kg or less, more preferably 720 mg / kg or less, still more preferably 600 mg / kg or less.

  The content of the component (e) in the cleaning solution is preferably 40 mg / kg or more, more preferably 120 mg / kg or more, further preferably 200 mg / kg or more, and preferably 800 mg / kg from the viewpoint of visibility of soil release. kg or less, more preferably 680 mg / kg or less, and still more preferably 560 mg / kg or less.

Mass ratio of [(b) component content] / [(e) component content], [(d) component content] / [(e) component content] mass ratio, [Q3 The mass ratio of [total content of body and Q4 body] / [content of component (e)] can be selected from the same range as the powder detergent composition for clothing of the present invention.
The cleaning liquid can contain components other than the components (a) to (e) and water.

  The pH of the washing solution is preferably 6.0 or more and 11.0 or less. The pH of the cleaning solution is more preferably 6.0 or more, further preferably 7.0 or more, still more preferably 7.5 or more, and more preferably 11.0 or less, from the viewpoint of cleaning performance and hand feel. More preferably, it is 10.7 or less, still more preferably 10.5 or less. The pH of the cleaning solution of the present invention can be measured, for example, using a glass electrode. The pH is measured at the temperature of the cleaning liquid at the time of cleaning, but may be measured at 25 ° C.

In the method for washing clothes of the present invention, it is preferable to wash the clothes containing the washing liquid by hand.
Examples of the hand washing method include a method of rubbing clothes with hands, a method of rubbing clothes with hands, and a method of rubbing clothes with tools such as a brush in which a fiber bundle is planted.
In the case of hand washing, from the viewpoint of improving detergency against oil stains, the powder detergent composition for clothing of the present invention is preferably 1 g or more, more preferably 2 g or more, and still more preferably 3 g or more, per 1 L of water. And it is preferably used in a concentration of 10 g or less, more preferably 9 g or less, and still more preferably 8 g or less.

  In the method for cleaning clothing of the present invention, it is preferable to wash the clothing after immersing the clothing in the cleaning liquid and leaving it to stand. In the method for cleaning clothing according to the present invention, it is preferable that the clothing is washed after the clothing is immersed in the cleaning solution and left for 1 minute or more and 60 or less. The standing time is preferably 1 minute or more, more preferably 3 minutes or more, and still more preferably 5 minutes or more, and preferably 60 minutes or less, more preferably 50 minutes or less, and even more preferably 40 minutes or less. . Further, the temperature of the cleaning liquid is preferably 20 ° C. or higher, more preferably 25 ° C. or higher, and preferably 45 ° C. or lower, more preferably 40 ° C. or lower at the time of starting the immersion. During the idle period, the temperature may be maintained or the temperature may fluctuate. One of the features of the present invention is that when a stained garment is immersed in a cleaning solution prepared from the powder detergent composition for a garment of the present invention, an operator can quickly confirm that the stain from the garment transfers to the cleaning solution. On the point. As a result, the subsequent work such as hand washing is started earlier, so that the time required for the entire washing can be reduced.

The alkalinity of water used for preparing the washing solution can be selected from 0 mg / L or more and 1000 mg / L or less. When water whose alkalinity is unknown is used, the alkalinity of water can be measured by the following method.
(Method of measuring alkalinity)
A 100 ml test sample is placed in a 200 ml beaker, and 0.15 ml of bromocresol green-methyl red / ethanol solution (manufactured by Wako Pure Chemical Industries, Ltd.) is added 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 magenta. The alkalinity is calculated by the following equation.
Alkalinity (CaCO ₃ mg / l) = a × 10
Here, a: 10 mmol / l sulfuric acid (ml) required for titration
When discoloration due to the indicator is not clear, such as in 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 reaches 4.8 is defined as a.

  The water used for washing may have a German hardness of 1 ° dH or more, further 2 ° dH or more, further 3 ° dH or more, further 5 ° dH or more. 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 the detergency.

The German hardness (° dH) in the present specification refers to the concentration of calcium and magnesium in water as 1 mg / L (mg / kg) = about 0.056 ° dH (1 ° dH = 17.8 mg) in terms of CaCO ₃ concentration. / Kg). Adjustment of the German hardness of the water used for washing can be performed based on a value calculated from the type and the amount of the hardness component, as in the method described in the examples of the present specification. In addition, when using water of unknown hardness such as tap water as the water used for washing, the German hardness of water is determined by a chelate titration method using disodium ethylenediaminetetraacetate described below. .
The specific method for measuring the German hardness of water in the present specification is shown below.
<Method of measuring German hardness of water>
〔reagent〕
0.01 mol / l EDTA · 2Na solution: 0.01 mol / l aqueous solution of disodium ethylenediaminetetraacetate (titration solution, 0.01 M EDTA-Na2, manufactured by Sigma-Aldrich)
・ Universal BT indicator (product name: Universal BT, manufactured by Dojindo Laboratories Inc.)
Ammonia buffer for hardness measurement (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 water as a sample into a conical beaker with a whole pipette.
(2) Add 2 ml of an ammonia buffer for hardness measurement.
(3) Add 0.5 ml of Universal BT indicator. Confirm that the solution after addition is reddish purple.
(4) While thoroughly shaking the conical beaker, a 0.01 mol / l EDTA · 2Na solution is dropped from the burette, and the time when the water serving as the sample turns blue turns to the end point of the titration. (5) The total hardness is determined by the following formula.
Hardness (° dH) = T × 0.01 × F × 56.0774 × 100 / A
T: titration (mL) of 0.01 mol / l EDTA · 2Na solution
A: Sample volume (20 mL, volume of water used as a sample)
F: Factor of 0.01 mol / l EDTA · 2Na solution

  The washing method of the present invention can include a step of rinsing the washed clothes with water. The water used for rinsing preferably has the German hardness described above. The water used for rinsing preferably has the above alkalinity. The water used for rinsing preferably has the above-mentioned German hardness and alkalinity.

<Aspect of the present invention>
Hereinafter, embodiments of the present invention will be exemplified. In these aspects, the items described in the powder detergent composition for clothing and the method for cleaning clothing according to the present invention can be appropriately applied.
<1>
The following component (a) is from 3% by mass to 30% by mass, component (b) is from 1% by mass to 10% by mass, component (c) is from 0.1 mg / kg to 10,000 mg / kg, and component (d) is 3% by mass or more and 20% by mass or less, containing component (e) 1% by mass or more and 20% by mass or less
The mass ratio of the content of the component (b) to the content of the component (e) [content of the component (b)] / [content of the component (e)] is 0.08 or more and 10 or less. ,
The mass ratio of the content of the component (d) to the content of the component (e) [content of the component (d)] / [content of the component (e)] is 0.20 or more and 20 or less. ,
Powder detergent composition for clothing.
(A) Component: Anionic surfactant (b) Component: One or more compounds selected from magnesium sulfate, magnesium chloride, aluminum sulfate, and aluminum chloride (c) Component: Group 2 to Group 16 of the Periodic Table of the Elements and Fourth Period And a metal element (d) component belonging to the fifth period: at least one inorganic polymer selected from polysilicate, polyborate and polyphosphate (e) component: at least one compound selected from zeolite and bentonite

<2>
<1> The powder washing for clothing according to <1>, wherein the component (a) is one or more anionic surfactants 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 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

<3>
The powder detergent for clothing according to <1> or <2>, wherein the component (a) is one or more anionic surfactants selected from the following components (a1), (a2) and (a3). Composition.
(A1) Component: alkyl or alkenyl sulfate ester salt (a2) Component: polyoxyalkylene alkyl or alkenyl ether sulfate salt having an alkyleneoxy group (a3) Component: anionic surfactant having a sulfonate group

<4>
<3> the component (a1) is the following component (a1), and / or the component (a2) is the following component (a2), and / or the component (a3) is the following component (a3). 3. The powder detergent composition for clothing according to item 1.
Component (a1): 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, It is preferably at least one anionic surfactant selected from alkyl sulfates having 12 to 14 carbon atoms in the alkyl group, and more preferably sodium alkyl sulfate having 12 to 14 carbon atoms in the alkyl group. At least one anionic surfactant (a2) component selected from: a polyoxyalkylene alkyl ether sulfate salt and an alkenyl group having an alkyl group having 10 to 18 carbon atoms and an average alkylene oxide addition mole number of 1 to 3 Having 10 to 18 carbon atoms and an average addition mole number of alkylene oxide of 1 It is one or more anionic surfactants selected from the above 3 or less polyoxyalkylene alkenyl ether sulfates, preferably the oxyalkylene group is an oxyalkylene group having 2 to 3 carbon atoms, more preferably Two or more and three or less oxyalkylene groups are one or more groups selected from oxypropylene and oxyethylene groups, and more preferably polyoxyethylene alkyl having an average ethylene oxide addition mole number of one or more and 2.2 or less. Ether sulfate, more preferably a polyoxyethylene alkyl ether sulfate having 12 to 14 carbon atoms in the alkyl group and an average ethylene oxide addition mole number of 1 to 2.2, More preferably, these sodium salt (a3) components: 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, an alkane sulfonate having an alkyl group having 10 to 18 carbon atoms, α An α-olefin sulfonate having 10 to 18 carbon atoms in the olefin portion, an α-sulfofatty acid salt having 10 to 18 carbon atoms in the fatty acid portion and 10 to 18 carbon atoms in the fatty acid portion, and an ester One or more anionic surfactants selected from lower alkyl ester salts of α-sulfofatty acids having 1 to 5 carbon atoms

<5>
The powder detergent composition for clothing according to any one of <2> to <4>, which contains, as the component (a), one or more anionic surfactants selected from the component (a3).

<6>
Component (a) contains an alkylbenzene sulfonate having an alkyl group having 10 to 18 carbon atoms, and the ratio of the alkylbenzene sulfonate having an alkyl group having 10 to 18 carbon atoms is determined in the detergent composition. In any of <1> to <5>, which is 50% by mass or more, preferably 60% by mass or more, more preferably 70% by mass or more, and 100% by mass or less in all the components (a) A powder detergent composition for clothing according to the above.

<7>
The content of the component (a) in the composition is 10% by mass or more, preferably 15% by mass or more, and 28% by mass or less, preferably 25% by mass or less, more preferably 20% by mass or less, and further more preferably The powder detergent composition for clothing according to any one of <1> to <6>, wherein is less than or equal to 18% by mass.

<8>
The powder cleaning composition for clothing according to any one of <1> to <7>, which comprises, as a component (b), at least one compound selected from magnesium sulfate and magnesium chloride.

<9>
(B) The proportion of at least one compound selected from magnesium sulfate and magnesium chloride in the component is 50% by mass or more, preferably 60% by mass or more, more preferably 80% by mass or more, and 100% by mass or less. The powder detergent composition for clothing according to <8>, which is present or is 100% by mass.

<10>
The content of the component (b) in the composition is 2% by mass or more, preferably 3% by mass or more, more preferably 5% by mass or more, and 8% by mass or less, preferably 6% by mass or less. The powder detergent composition for clothing according to any one of <1> to <9>.

<11>
The powder detergent composition for clothing according to any one of <1> to <10>, wherein the component (c) is at least one metal element selected from iron, zinc, manganese, and strontium.

<12>
The powder detergent composition for clothing according to any one of <1> to <11>, comprising a compound containing a metal element selected from iron, zinc, manganese, and strontium.

<13>
Any of <1> to <12>, containing an oxide of a metal selected from iron, zinc, manganese, and strontium, a sulfate of the metal, and one or more compounds selected from chlorides of the metal. Powder detergent composition for clothing.

<14>
<13> The powder cleaning composition for clothing according to <13>, comprising one or more compounds selected from iron oxide, iron chloride, zinc oxide, manganese oxide, and strontium oxide.

<15>
The content of the component (c) in the composition is 1 mg / kg or more, preferably 10 mg / kg or more, more preferably 50 mg / kg or more, and 5000 mg / kg or less, preferably 3000 mg / kg or less. The powder detergent composition for clothing according to any one of <1> to <14>.

<16>
The powder detergent composition for clothing according to any one of <1> to <15>, which comprises a polysilicate as a component (d).

<17>
(D) The powder detergent composition for clothing according to any one of <1> to <16>, wherein the component is an inorganic polymer containing a Q3 body and a Q4 body.

<18>
<17> The component (d) according to <17>, wherein the ratio of the total amount of the Q3 body and the Q4 body to the total amount of the Q0 body, the Q1 body, the Q2 body, the Q3 body and the Q4 body is 50% by mass or more. Powder detergent composition for clothing.

<19>
In the component (d), the ratio of the total amount of Q3 and Q4 to the total amount of Q0, Q1, Q2, Q3 and Q4 is 70% by mass or more, preferably 90% by mass or more. The powder detergent composition for clothing according to <18>, which is preferably 99% by mass or more and 100% by mass or less.

<20>
<1> to <19>, wherein the content of the component (d) in the composition is 5% by mass or more, preferably 7% by mass or more, and 18% by mass or less, preferably 15% by mass or less. The powder detergent composition for clothing according to any one of the above.

<21>
(D) The mass ratio of the total content of Q3 and Q4 in the component to the content of component (e) [total content of Q3 and Q4] / [content of component (e)] Is 0.2 or more, preferably 0.5 or more, more preferably 0.7 or more, and 20 or less, preferably 15 or less, more preferably 10 or less, any of <17> to <20>. 3. The powder detergent composition for clothing according to item 1.

<22>
The powder detergent composition for clothing according to any one of <1> to <21>, which is used for hand washing.

<23>
The mass ratio of the content of the component (b) to the content of the component (e) [content of the component (b)] / [content of the component (e)] is 0.10 or more, preferably 0. .20 or more, more preferably 0.30 or more, still more preferably 0.35 or more, and 5 or less, preferably 2 or less, the powder detergent for clothing according to any one of <1> to <22>. Composition.

<24>
The mass ratio of the content of the component (d) to the content of the component (e) [content of the component (d)] / [content of the component (e)] is 0.5 or more, more preferably The powder detergent composition for clothing according to any one of <1> to <23>, which is 0.7 or more and 15 or less, preferably 10 or less.

<25>
A method for washing clothes, comprising washing the clothes with a washing liquid containing the powder detergent composition for clothes according to any one of <1> to <24> and water.

<26>
The method for washing clothes according to <25>, wherein the clothes are washed by hand.

<27>
The method for cleaning clothing according to <25> or <26>, wherein the clothing is washed after the clothing is immersed in a cleaning liquid and left to stand.

<28>
<27> The method for cleaning clothes according to <27>, wherein the clothes are immersed in a cleaning solution, left to stand for 3 minutes to 60 minutes, and then the clothes are washed.

(Method of preparing powder detergent composition)
The powder detergent compositions shown in Tables 1 to 4 were prepared using the following components.
Among the blended components, the component (a) is the following component (a) using an electric dryer (DN410H, manufactured by Yamato Scientific Co., Ltd.), and the mass change rate of 1.0% / min or less with respect to the initial mass of the measurement sample. What was dried at 200 ° C until was used.
For the following component (d), sodium silicate (Wako Pure Chemical Industries, Ltd.), sodium tetraborate decahydrate (Wako Pure Chemical Industries, Ltd.), disodium hydrogen phosphate (Wako Pure Chemical Industries, Ltd.) The following components (d-1) and (d-4) are obtained by drying at 200 ° C. using the above-mentioned electric dryer until the mass change rate becomes 1.0% / min or less with respect to the initial mass of the measurement sample. , (D-5).
Further, with respect to the component (d) or (d′-1), with respect to the sodium silicate, a mass change rate of 1.0% / min or less with respect to the initial mass of the measurement sample using the electric dryer. By drying at 150 ° C, 100 ° C and 30 ° C, the following components (d-2), (d-3) and (d'-1) were obtained.

  The components (b), (c) and (e) were added to the components (a) and (d) (in some comparative examples, the component (d ')) of the obtained dried product, as shown in Tables 1 to 4. The powder detergent compositions shown in Tables 1 to 4 were prepared by mixing and stirring at a ratio. The following evaluation was performed using the obtained powder detergent composition. The results are shown in Tables 1 to 4.

(Ingredients)
(A) Component (a-1): LAS-Na, sodium laurylbenzenesulfonate, Neoperex G-15 (manufactured by Kao Corporation)
-(A-2): AS-Na, sodium lauryl sulfate, Emal 10G (manufactured by Kao Corporation)
-(A-3): AES-Na, sodium polyoxyethylene lauryl ether sulfate, Emal 270J (manufactured by Kao Corporation)
(A-4): Anionic surfactant using α-SFE-Na, α-sulfostearic acid methyl ester sodium and α-sulfopalmitic acid methyl ester sodium in a mass ratio of 8/2.

(B) Component (b-1): magnesium sulfate, magnesium sulfate (anhydrous), Wako Pure Chemical Industries, Ltd.
-(B-2): magnesium chloride, magnesium chloride (anhydrous), Wako Pure Chemical Industries, Ltd.
-(B-3): aluminum chloride, aluminum chloride (anhydrous), Wako Pure Chemical Industries, Ltd.
-(B-4): aluminum sulfate, aluminum sulfate (anhydrous), Wako Pure Chemical Industries, Ltd.

(C) Ingredient (c-1): iron oxide, iron (III) oxide, Wako Pure Chemical Industries, Ltd. (c-2): iron chloride, iron (III) chloride hexahydrate, 99.9%, sum Kako Pure Chemical Industries, Ltd.-(c-3): Zinc oxide, zinc oxide, Wako Pure Chemical Industries, Ltd.-(c-4): Manganese oxide, manganese (IV) oxide, powder, Wako Pure Chemical Industries, Ltd.-( c-5): Strontium oxide, Wako Pure Chemical Industries, Ltd. These compounds were used so that the amount of the component (c) as a metal element would be as shown in the table.

Component (d) (d-1): sodium polysilicate [compound obtained by drying sodium silicate (Wako Pure Chemical Industries, Ltd.) with an electric dryer as described above, degree of polymerization: 99%]
-(D-2): sodium polysilicate [a compound obtained by drying sodium silicate (Wako Pure Chemical Industries, Ltd.) with an electric dryer as described above, degree of polymerization 70%]
(D-3): sodium polysilicate [a compound obtained by drying sodium silicate (Wako Pure Chemical Industries, Ltd.) with an electric dryer as described above, degree of polymerization 50%]
(D-4): Compound obtained by drying sodium polyborate [sodium tetraborate decahydrate (Wako Pure Chemical Industries, Ltd.) with an electric dryer as described above. ]
-(D-5): Compound obtained by drying sodium polyphosphate [disodium hydrogen phosphate (Wako Pure Chemical Industries, Ltd.) with an electric dryer as described above. ]

(Evaluation of polymerization degree of sodium polysilicate)
Regarding the components (d), (d-1), (d-2), and (d-3), a single pulse using an ECA500 (manufactured by JEOL), 400 times of integration, and ²⁹ Si- NMR was measured. Q0, Q1, Q2, Q3, and Q4 were set in order from the low magnetic field side. The value obtained by dividing the sum of the peak areas of Q3 and Q4 by the sum of the peak areas of Q0, Q1, Q2, Q3, and Q4 and multiplying by 100 was defined as the degree of polymerization of sodium polysilicate. The higher the value, the more the polymerization is progressing.

(D ') component-(d'-1): Na silicate (Wako Pure Chemical Industries, Ltd.), degree of polymerization 0%.

(E) Component • (e-1): zeolite, synthetic zeolite, A-4, powder, 75 μm (200 mesh) passing, Wako Pure Chemical Industries, Ltd. • (e-2): Bentonite, kunipia F, kunimine industry

(Water used for evaluation)
As the water used in the following evaluations, water containing the following hardness components was used unless otherwise specified. A concentrated stock solution was prepared by dissolving 78.50 g of calcium chloride dihydrate (Wako Pure Chemical Industries, Ltd.) and 73.58 g of magnesium chloride hexahydrate (Wako Pure Chemical Industries, Ltd.) in 1 L of ion-exchanged water. . This concentrated stock solution had a calcium / magnesium ratio of 6/4 (molar ratio). The resulting concentrated stock solution was diluted with dilution water having an alkalinity of 100 mg / L (calculated as CaCO ₃ ) and pH 7.5, and adjusted to a German hardness of 10 ° dH before use. The dilution water was obtained by adding sodium hydrogen carbonate (Wako Pure Chemical Industries, Ltd.) to ion-exchanged water to adjust the alkalinity, and adding hydrochloric acid (Wako Pure Chemical Industries, Ltd.) to adjust the pH. .

(Turbidity evaluation method)
500 ml of water at 30 ° C. was added to a 500 mL glass beaker, and 2.0 g of the above powder detergent composition was added. The mixture was stirred for 5 minutes at a rotation speed of 200 rpm using a VELP jar tester portable FP4 (Leona Co., Ltd.). After stirring, the container was transferred to a cylindrical container having an inner diameter of 5.0 cm, a height of 13 cm, and a black inside, and was left still for 5 minutes. Turbidity was measured with the lower end of the turbidity sensor TR-30 (Kasa Rika Kogyo Co., Ltd.) being 5 cm from the bottom of the cylindrical container. It can be determined that the smaller the turbidity, the clearer the liquid at the measurement location, so that the background black is more prominent and is advantageous for visual recognition of dirt.

(Time to reach turbidity 60)
500 ml of water at 30 ° C. was added to a 500 mL glass beaker, and 2.0 g of the above powder detergent composition was added. The mixture was stirred for 5 minutes at a rotation speed of 200 rpm using a VELP jar tester portable FP4 (Leona Co., Ltd.). After stirring, transfer to a cylindrical container with an inner diameter of 5.0 cm, a height of 13 cm, and a black inside, with the lower end of the turbidity sensor TR-30 (Kasa Rika Kogyo Co., Ltd.) at 5 cm from the bottom of the cylindrical container. Turbidity was measured over time. The time until the turbidity reached 60 was measured every 30 seconds, with the time when the solution was transferred to the cylindrical container as 0 seconds (starting point). The shorter the time is, the shorter the time required for the liquid at the measurement location to become clearer and to be able to visually recognize the dirt is shorter.

(Evaluation of visibility of dirt release)
500 ml of water at 30 ° C. was added to a 500 ml glass beaker, and 2.0 g of the above powder detergent composition and the following five stained cloths were added. The mixture was stirred for 5 minutes at a rotation speed of 200 rpm using a VELP jar tester portable FP4 (Leona Co., Ltd.). After the stirring, the beaker was left for another 5 minutes, and the beaker after 5 minutes was visually observed from above. Example 1 (turbidity by the above-mentioned evaluation, the same applies hereinafter) 40.2), Example 11 (turbidity 38.5), Example 15 (turbidity 43.5), Example 16 (turbidity 42.0), Example 17 ( The turbidity of the washings in Comparative Example 2 (turbidity 90.3) and Comparative Example 6 (turbidity 90.1) was brown, but the smaller the turbidity value, the darker the brown color. Comparative Example 2 and Comparative Example 6 had almost the same color, and appeared to be lighter than the Examples. In this evaluation, it can be evaluated that the darker the color of the cleaning liquid, the higher the visibility of stain release during cleaning.

* Contaminated cloth The following test cloth was gravure-coated with 100 mg of artificial stain having the following composition to obtain a contaminated cloth.
・ Test cloth
2.0 kg of T / C broad cloth (65% polyester, 35% cotton, undyed cloth, dyeing material Co., Ltd., made by Tanika Shoten) 2.0 kg of nonionic surfactant (Emulgen 108, Kao Corporation) 200 mg / kg, carbonic acid Sodium (Wako Pure Chemical Industries, Ltd.) was washed five times at a concentration of 400 mg / kg (40 L, washing 6 minutes, water rinsing twice, dehydration 3 minutes, NA-F70PX9, manufactured by Panasonic Corporation). After washing, water rinsing was performed with a two-tank washing machine (Toshiba Corporation, Galaxy VH-360S1) until the bubbles disappeared. After dehydration for 5 minutes in a dehydration tank, air drying was performed, and cut into 20 cm × 30 cm to obtain a test cloth.
-Artificial dirt The composition containing the following A, B, C, D, and E was made into artificial dirt. Each mass% is the ratio of the final composition in the artificial soil, and the amount of B was adjusted so that the total was 100 mass%. A: Model sebum soil (% by mass in artificial soil is 0.44% by mass of lauric acid, 3.15% by mass of myristic acid, 2.35% by mass of pentadecanoic acid, 6.31% by mass of palmitic acid, and 0 of heptadecanoic acid 0.44% by mass, stearic acid 1.6% by mass, oleic acid 7.91% by mass, triolein 13.33% by mass, n-hexadecyl palmitate 2.22% by mass, and squalene 6.66% by mass. Use)
B: 105 mg of calcium chloride dihydrate was weighed and dissolved in distilled water to obtain 1,000 ml. Hard water C: 1.98% by mass of egg white lecithin liquid crystal substance (11.37 g of arginine hydrochloride and histidine 4 in 80 ml of distilled water) After dissolving .20 g and 2.44 g of serine and adjusting the pH to 5.0 with concentrated hydrochloric acid, this solution and egg white lecithin were thoroughly mixed with a mixer to obtain an egg white lecithin liquid crystal material) D: Kanuma Red Earth 8.11 mass%
E: carbon black 0.025% by mass

(Washing test method)
50 ml of water at 30 ° C. was added to a 100 ml glass beaker, and 0.2 g of the above powder detergent composition was added. One of the above-mentioned contaminated cloths was immersed. After 30 minutes, the contaminated cloth was taken out and brushed 10 times on the washing sink using a commercially available washing brush (made of polypropylene). After brushing, the contaminated cloth was put into tap water on a wash basin, rinsed well, and air-dried. By comparing the dried test cloth with the stained cloth before the cleaning test, the cleaning property was visually observed and evaluated. As a result, the test cloth washed with any one of the powder detergent compositions for clothing shown in Tables 1 to 4 had less stains than the test cloth before washing, and the performance as a detergent for clothing was sufficient. .

Claims (15)

The following component (a) is from 3% by mass to 30% by mass, component (b) is from 1% by mass to 10% by mass, component (c) is from 0.1 mg / kg to 10,000 mg / kg, and component (d) is 3% by mass or more and 20% by mass or less, containing component (e) 1% by mass or more and 20% by mass or less,
The mass ratio of the content of the component (b) to the content of the component (e) [content of the component (b)] / [content of the component (e)] is 0.08 or more and 10 or less. ,
The mass ratio of the content of the component (d) to the content of the component (e) [content of the component (d)] / [content of the component (e)] is 0.20 or more and 20 or less. ,
Powder detergent composition for clothing.
(A) component: anionic surfactant (b) component: one or more compounds selected from magnesium sulfate, magnesium chloride, aluminum sulfate and aluminum chloride (c) component: one selected from iron, zinc, manganese and strontium The above metal element (d) component: at least one inorganic polymer selected from polysilicate, polyborate and polyphosphate (e) component: at least one compound selected from zeolite and bentonite The powder detergent for clothing 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 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   The powder detergent composition for clothing according to claim 1 or 2, wherein the component (b) contains at least one compound selected from magnesium sulfate and magnesium chloride.   The powder detergent composition for clothing according to claim 3, wherein the proportion of at least one compound selected from magnesium sulfate and magnesium chloride in the component (b) is from 50% by mass to 100% by mass. The powder detergent composition for clothing according to any one of claims 1 to 4 , further comprising a compound containing a metal element selected from iron, zinc, manganese, and strontium. The powder detergent composition for clothing according to claim 5 , comprising an oxide of a metal selected from iron, zinc, manganese, and strontium, a sulfate of the metal, and one or more compounds selected from chlorides of the metal. object. The powder detergent composition for clothing according to any one of claims 1 to 6 , comprising a polysilicate as the component (d). The powder detergent composition for clothing according to any one of claims 1 to 7 , wherein the component (d) is an inorganic polymer containing a Q3 body and a Q4 body. 9. The component according to claim 8 , wherein the ratio of the total amount of the Q3 body and the Q4 body to the total amount of the Q0 body, the Q1 body, the Q2 body, the Q3 body and the Q4 body in the component (d) is 50% by mass or more. 10. Powder detergent composition for clothing. (D) The mass ratio of the total content of Q3 and Q4 in the component to the content of component (e) [total content of Q3 and Q4] / [content of component (e)] The powder detergent composition for clothing according to claim 8 or 9 , wherein the value is 0.2 or more and 20 or less. The powder detergent composition for clothing according to any one of claims 1 to 10 , which is for hand washing. A method for washing clothes, comprising washing the clothes with a washing liquid containing the powder detergent composition for clothes according to any one of claims 1 to 11 and water. 13. The method for cleaning clothing according to claim 12 , wherein the clothing is washed by hand. After standing by immersing the garment in the washing solution to wash the clothing, clothing cleaning method according to claim 12 or 13. The method for cleaning clothes according to claim 14 , wherein the clothes are washed after the clothes are immersed in a cleaning liquid and left for 3 minutes to 60 minutes.