JP2018104704A - Powder detergent composition for fiber product - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a powder detergent composition for fiber product good in foamability or rinsing property, high in bactericidal effect on bacteria existing in a cleaning fluid, further excellent in proliferation inhibition effect on bacteria adhered to a fiber product such as clothing.SOLUTION: There is provided a powder detergent composition containing a following (A) component of 10 mass% to 40 mass%, a following (B) component of 0.5 mass% to 5 mass%, a following (C) component of 20 mass% to 70 mass% and a following (D) component and having a mass ratio of (a1)/[(a1)+(a2)] of 0.85 to 1. (A) component: (a1) one or more kind of anionic surfactant selected from an anionic surfactant having sulfonic acid group or a salt thereof and an anionic surfactant having sulfate ester salt, and optionally (a2) a nonionic surfactant having a polyoxyalkylene group. (B) component: a specific cationic surfactant represented by the general formula (1), (C) component: one or more kind of alkali agent selected from an inorganic carbonate and inorganic bicarbonate. (D) component: a polymer having a carboxylic acid group or a salt thereof and weight average molecular weight of 3000 or more.SELECTED DRAWING: None

Description

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

In powder detergent compositions for textiles such as clothing, anionic surfactants and nonionic surfactants are used as cleaning components. Examples of the anionic surfactant include an anionic surfactant having a sulfonic acid group or a salt thereof typified by an alkyl benzene sulfonate, a sulfate salt represented by an alkyl sulfate ester salt and a polyoxyalkylene alkyl sulfate salt. Anionic surfactants having the following are known:
On the other hand, with increasing awareness of hygiene among consumers, interest in clothing odors and fungi has also increased. It is known that various bacterium existing in the skin and the environment are attached to the clothing and propagate. It is known to use a quaternary ammonium surfactant as a means for suppressing the growth of bacteria adhering to clothing.
In addition, it is known to use an alkaline agent in order to improve the cleaning performance of dirt adhered to clothing.
It is also known to use polycarboxylates so that dirt detached from the clothes during washing is less likely to reattach to the clothes.

Patent Document 1 discloses a powder cleaning composition for clothing containing an alkylbenzene sulfonate and an alkyl sulfate, and having excellent detergency for sebum dirt and mud dirt.
Patent Document 2 discloses a deodorant detergent composition containing a surfactant, a cation exchange polymer, an alkali metal carbonate and a mutant protease enzyme, and capable of suppressing odor immediately after washing of clothes, drying and wearing. Has been.
Patent Document 3 contains a specific amine compound, a sulfonate, a specific nonionic surfactant and a water-soluble inorganic salt, a cationic surfactant and a polymer as a surface coating agent as optional components, and a detergency, storage The granular detergent composition which is excellent in the discoloration-resistance by this and the discoloration prevention property of a to-be-cleaned object is disclosed.
Patent Document 4 describes a bactericidal disinfectant cleaning composition containing a cationic bactericidal agent, a metal chelating agent, a nonionic surfactant and / or an amphoteric surfactant, and which does not reduce the bactericidal effect of the cationic bactericidal agent. Has been.

JP 2014-141641 A JP 2008-101165 A Japanese Patent Laid-Open No. 2004-10682 JP 7-53995 A

  The present invention is a powder detergent composition for textiles that has good foaming and rinsing properties, has a high bactericidal effect on the bacteria present in the cleaning liquid, and has an excellent effect on inhibiting the growth of bacteria adhered to textiles such as clothing. Offer things.

In the present invention, the following component (A) is 10% by mass to 40% by mass, the following component (B) is 0.5% by mass to 5% by mass, and the following component (C) is 20% by mass to 70% by mass. And containing the following component (D),
(A1) component / [(a1) component + (a2) component], which is a mass ratio of the content of the component (a1) and the total content of the components (a1) and (a2), is 0. .85 or more and 1 or less,
The present invention relates to a powder cleaning composition for textile products.
(A) Component: selected from the following (a1) component and optional (a2) component (a1) component: an anionic surfactant having a sulfonic acid group or a salt thereof, and an anionic surfactant having a sulfate ester salt One or more types of anionic surfactant (a2) Component: Nonionic surfactant having a polyoxyalkylene group (B) Component: Cationic surfactant represented by the following general formula (1)

[Wherein, R ¹ is an aliphatic hydrocarbon group having 8 to 16 carbon atoms, R ² is a hydrocarbon group having 1 to 10 carbon atoms, and R ³ and R ⁴ are each independently , A group selected from a hydrocarbon group having 1 to 3 carbon atoms and a hydroxyalkyl group having 1 to 3 carbon atoms, and X ⁻ is an anion. ]
(C) Component: one or more alkali agents selected from inorganic carbonates and inorganic metal hydrogen carbonates (D) Component: a polymer having a carboxylic acid group or a salt thereof and having a weight average molecular weight of 3000 or more

  The present invention also provides a method for cleaning a textile product, wherein the textile product is cleaned with a cleaning liquid obtained by mixing the powder cleaning composition for textiles according to the present invention and water having a German hardness of 1 ° dH to 50 ° dH. About.

  According to the present invention, the powder detergent composition for textiles has good foaming and rinsing properties, has a high bactericidal effect on the bacteria present in the cleaning liquid, and has an excellent effect on inhibiting the growth of bacteria adhered to the textiles. Can be obtained. In the present specification, the effect of suppressing the growth of bacteria attached to the textile product may be referred to as an antibacterial effect. For example, being excellent in antibacterial effect may mean being excellent in the effect of suppressing the growth of bacteria attached to the textile product.

[Powder cleaning composition for textile products]
The inventors of the present invention have studied the maintenance of the bactericidal effect or antibacterial effect of bacteria by a cationic surfactant in a composition containing an anionic surfactant as a main cleaning component. As a result, a specific amount of the component (C) In combination with the inorganic alkaline agent and a polymer having a carboxylic acid group or a salt thereof as component (D) having a specific weight average molecular weight, the sterilizing effect of bacteria present in the cleaning liquid, or the object to be cleaned It has been found that a powder cleaning composition for textiles can be obtained which has an effect of suppressing the growth of bacteria by attaching bacteria to the textile product, ie, an antibacterial effect.
When a cationic surfactant and an anionic surfactant are used in combination, there is a concern that both form a complex and the adsorptivity of the cationic surfactant to the bacteria is impaired. Conventionally, it has been known that a polymer having a carboxylic acid group or a salt thereof contributes to the detergency of dirt attached to a textile product, but in the present invention, a carboxylic acid group having a specific molecular weight of the component (D) or By using a polymer having the salt and a specific amount of an inorganic alkaline agent, even if the cationic surfactant forms a complex with the anionic surfactant, there is an effect of increasing the adsorptivity to the fungus. It is thought that the antibacterial effect is maintained. Further, even when a cationic surfactant and an anionic surfactant form a complex, a polymer having a specific molecular weight carboxylic acid group or a salt thereof as component (D) and a specific amount of inorganic alkali as component (C) It is considered that the combined use with the agent has an effect of enhancing the action of the cationic surfactant on the bacteria.
INDUSTRIAL APPLICATION This invention can provide the powder cleaning composition for textiles which can improve the bactericidal effect of the microbe which exists in a washing | cleaning liquid. Furthermore, the powder cleaning composition for textiles which can improve the antibacterial effect of textiles can be provided. Furthermore, this invention can provide the powder cleaning composition for textiles which the antibacterial effect increases by the user of the textile cleaning powder cleaner repeatedly washing textiles. Generally, a cationic interface is adsorbed on a textile by washing the textile with a powder detergent composition for textiles containing a cationic surfactant. And when wearing the fiber product which the cationic surfactant adsorb | sucked, even if a microbe adheres to a fiber product, a cationic surfactant has an effect which suppresses proliferation of a microbe. When washing is repeated with the same detergent composition, the antibacterial effect is easily exhibited, but it is preferable to exhibit the antibacterial effect with a smaller cumulative number of washings. In the present invention, by using a specific amount of an inorganic alkaline agent, the antibacterial effect is enhanced, and a good antibacterial effect can be imparted to the textile product with a smaller cumulative number of washings. Moreover, the cleaning composition for textiles of the present invention can exhibit the above-described effects while maintaining the cleaning power.
In addition to these effects, the powder cleaning composition for textiles of the present invention has good foamability and rinsability.

<(A) component>
(A) A component is the following (a1) component and arbitrary following (a2) components. The component (A) includes the following component (a1) and optionally includes the following component (a2).
(A1) component: one or more anionic surfactants selected from anionic surfactants having a sulfonic acid group or a salt thereof and anionic surfactants having a sulfate ester salt (a2) component: having a polyoxyalkylene group Nonionic surfactant

  (A) component has the effect | action which wash | cleans the dirt adhering to the textiles. Among the components (A), the component (a1) is a preferable component from the viewpoint of detergency, but is known to inhibit the bactericidal action of the cationic surfactant. However, in the present invention, even if such a specific anionic surfactant is the main component, even if the fungus adheres to the sterilizing action of the bacteria present in the cleaning liquid or the textiles washed with the composition of the present invention. It can have an antibacterial action that makes it difficult for bacteria to grow. In addition, it is known that the cleaning liquid used for cleaning foams the worker with an impression of excellent cleaning feeling. In this respect, the component (a1) is a preferred component. In the present invention, by restricting the use of the nonionic surfactant having a polyoxyalkylene group as the component (a2), bubbling is maintained and good rinsing properties are achieved. Can be obtained. In the present invention, (a1) component / [(a1) component + which is the mass ratio of the content of the component (a1) in the composition and the total content of the components (a1) and (a2) (A2) component] is 0.85 or more and 1 or less.

[(A1) component]
The component (a1) is at least one anionic surfactant selected from an anionic surfactant having a sulfonic acid group or a salt thereof and an anionic surfactant having a sulfate ester salt. The component (a1) has an effect of washing dirt adhering to the textile product, and forms a complex with the cationic surfactant of the component (B) described later and the polymer having a specific molecular weight of the component (D) described later. However, it has the effect | action which expresses a bactericidal effect or an antibacterial effect more.

Examples of the anionic surfactant having a sulfonic acid group or a salt thereof include alkylbenzene sulfonic acid or a salt thereof, alkyl sulfonic acid or a salt thereof, alkenyl sulfonic acid or a salt thereof, alkenyl sulfo fatty acid ester or a salt thereof.
Examples of the anionic surfactant having a sulfonic acid group or a salt thereof include an alkylbenzenesulfonic acid having an alkyl group having 8 to 20 carbon atoms or a salt thereof, and an alkylsulfonic acid having an alkyl group having 8 to 20 carbon atoms or a salt thereof. One or more anionic surfactants selected from alkenylsulfonic acid having an alkenyl group having 8 to 20 carbon atoms or a salt thereof, and an alkenylsulfo fatty acid ester having an alkenyl group having 8 to 20 carbon atoms or a salt thereof. Can be mentioned.

The alkylbenzenesulfonic acid having an alkyl group having 8 to 20 carbon atoms or a salt thereof is not particularly limited, but is preferably 10 or more, more preferably 12 or more, and 20 or less, preferably 16 or less. Examples thereof include alkylbenzenesulfonic acid having an alkyl group, preferably a linear alkyl group, or a salt thereof.
Examples of the counter ion forming the salt of the alkylbenzene sulfonate having an alkyl group having 8 to 20 carbon atoms include alkali metal salts such as sodium and potassium, and alkanolamine salts having 2 to 8 carbon atoms.

  Examples of the anionic surfactant having a sulfate ester salt include one or more anionic surfactants selected from alkyl sulfate ester salts and alkyl ether sulfate ester salts.

  The carbon number of the alkyl group of the alkyl sulfate salt is preferably 16 or less, more preferably 15 or less, and still more preferably 14 or less, from the viewpoint of lowering the bactericidal effect or antibacterial effect of the cationic surfactant. And 10 or more are preferable. That is, the alkyl sulfate ester salt is preferably an alkyl sulfate ester salt having an alkyl group having 10 or more and 16 or less carbon atoms, preferably a linear alkyl group.

  The alkyl sulfate ester salt is a ratio of the linear alkyl group in the total alkyl groups, and further the linear alkyl group having 12 to 16 carbon atoms, from the viewpoint of lowering the bactericidal effect or antibacterial effect by the cationic surfactant. An alkyl sulfate ester salt having a ratio of 50% by mass to 100% by mass is preferable.

  From the viewpoint of lowering the bactericidal effect or antibacterial effect due to the cationic surfactant, the alkyl sulfate ester salt preferably has a proportion of linear alkyl groups having 12 carbon atoms in all alkyl groups, preferably 40% by mass or more. The alkyl sulfate ester salt is preferably 50% by mass or more, more preferably 60% by mass or more, and 100% by mass or less.

  From the viewpoint of lowering the bactericidal effect or antibacterial effect due to the cationic surfactant, the alkyl sulfate ester salt has a ratio of linear alkyl groups having 12 to 16 carbon atoms in all alkyl groups of 50% by mass or more. And the proportion of straight-chain alkyl groups having 12 carbon atoms in all alkyl groups is preferably 40% by mass or more, more preferably 50% by mass or more, still more preferably 60% by mass or more, and 100% by mass or less. Alkyl sulfate salts are more preferred.

  Examples of the salt constituting the alkyl sulfate salt include alkali metal salts such as sodium and potassium, alkanolamine salts, and alkaline earth metal salts such as magnesium and calcium.

Moreover, as an alkyl ether sulfate ester salt, the compound represented by the following general formula (a1) is mentioned. The compound of the following general formula (a1) has the effect | action which makes it easy to express the bactericidal effect or antimicrobial effect by a cationic surfactant by using together with another (a1) component.
R ^1a —O— (AO) _n —SO ₃ M (a1)
[Wherein, R ^1a represents an alkyl group having 10 to 18 carbon atoms, AO represents an alkyleneoxy group selected from an alkyleneoxy group having 2 carbon atoms and an alkyleneoxy group having 3 carbon atoms, and n represents 1 to 20 carbon atoms. The following integers, where M is a cation. ]

In general formula (a1), R ^1a includes a chain alkyl group. In addition, R ^1a preferably has 10 or more and 16 or less carbon atoms from the viewpoint of further suppressing the decrease in the bactericidal effect or the antibacterial effect due to the cationic surfactant when used in combination with the other component (a1). R ^1a is preferably a chain alkyl group having 10 to 16 carbon atoms.

In general formula (a1), AO is an alkyleneoxy group selected from an alkyleneoxy group having 2 carbon atoms and an alkyleneoxy group having 3 carbon atoms. AO includes, for example, one or more groups selected from an ethyleneoxy group and a propyleneoxy group.
When n in the general formula (a1) is an integer of 2 or more and 20 or less, AO can contain an ethyleneoxy group and a propyleneoxy group. When AO contains an ethyleneoxy group and a propyleneoxy group, the bonding mode of the ethyleneoxy group and the propyleneoxy group is bonded to either the random type or the block type, or the random type and the block type are mixed and bonded. It may be a thing.
It is preferable that the compound of general formula (a1) contains an ethyleneoxy group as AO from a point with easy acquisition and manufacture. AO is preferably an ethyleneoxy group.

  In general formula (a1), n is an integer of 1-20. In the total of the compounds of the general formula (a1), the ratio of the compound of n = 1 is preferably 40% by mass or less, more preferably 30% by mass or less, from the viewpoint that the antibacterial effect by the cationic surfactant can be more maintained. More preferably, it is 25% by mass or less, still more preferably 20% by mass or less, and preferably 0% by mass or more. The compound of n = 1 may be 0% by mass in the total of the compound of the general formula (a1).

In the present invention, the composition ratio of the different compounds of n in the general formula (a1) in the total of the compounds of the general formula (a1) is the same as that in the compound in which the SO ₃ M group in the general formula (a1) is replaced with H. Composition ratios of different compounds of n can be employed. For example, the area ratio obtained by analyzing the distribution of compounds different from n in the compound in which the SO ₃ M group in the general formula (a1) is replaced with H is regarded as a mass fraction. Can be used as the constituent ratio of the different compounds of n in the general formula (a1) in the total of the compounds of the general formula (a1).

In addition, even when the compound represented by the general formula (a1) is available as a mixture, when the composition ratio is difficult to measure as it is, the compound in the mixture is acid-decomposed to form a SO ₃ M group. In which the composition ratio of the different compounds of n in the mixture is determined, and this is the composition ratio of the different compounds of n in the general formula (a1) in the total of the compounds of the general formula (a1). Can be used as In this case, specifically, a mixture of the compound of the general formula (a1) is acid-decomposed to generate a compound in which the SO ₃ M group is replaced with H, and then the distribution of n in the mixture is analyzed by gas chromatography. Then, the obtained area ratio is regarded as a mass fraction, and this can be used as a constituent ratio of different compounds of n in the general formula (a1) in the total of the compounds of the general formula (a1).

In the case of employing the above method, an example of analysis conditions by gas chromatography and the above-mentioned acid decomposition conditions are shown below.
<Analysis conditions for gas chromatography>
GC equipment; Agilent Technologies, 7890A
Column; manufactured by Agilent Technologies, DB-5 (30 m, inner diameter 0.25 mm, film thickness 0.25 μm)
Detector; FID
Carrier; helium gas, 1 mL / min
Temperature raising condition: The temperature is raised from 100 ° C. to 325 ° C. at 5 ° C./min. Thereafter, hold at 325 ° C. for 35 minutes.
Sample pretreatment: 50 mg of a sample is placed in a 2 mL vial, 1 mL of a trimethylsilylating agent (manufactured by GL Sciences) is added and mixed, and reacted at 30 ° C. for 5 minutes.

<Conditions for acid decomposition of compound of general formula (a1)>
Place 4 g of sample into a 300 mL glass Erlenmeyer flask with a slit. 200 mL of 2N hydrochloric acid and zeolite are put into an Erlenmeyer flask, and an air-cooled tube with a slot is set. The Erlenmeyer flask is placed in a 140 ° C. oil bath and refluxed for 3 hours, and then cooled to 30 ° C. Add 1 drop of 1% phenolphthalein solution in a Erlenmeyer flask with a Pasteur pipette. Next, 35% aqueous sodium hydroxide solution is added until the contents in the Erlenmeyer flask become a light pink color.
Transfer the contents to a 1000 mL separatory funnel, add 200 mL petroleum ether and extract 3 times. The petroleum ether layer is washed with 50 mL of a 10% aqueous sodium chloride solution three times, and then 20 g of anhydrous sodium sulfate is added for dehydration. A solution obtained by removing anhydrous sodium sulfate by filtration is placed in a 500 mL triangle, and topped with petroleum ether.

  In general formula (a1), M is a cation that forms a salt. Examples of M include alkali metal ions such as sodium ion and potassium ion, ammonium ion, and alkanol ammonium ion. The alkanol ammonium ion is preferably an alkanol ammonium ion having 2 to 6 carbon atoms in total.

The component (a1) preferably includes an anionic surfactant having a sulfonic acid group or a salt thereof from the viewpoint of further enhancing the bactericidal effect or antibacterial effect of the cationic surfactant, and the sulfonic acid group or the component thereof in the component (a1) The proportion of the anionic surfactant having a salt is preferably 50% by mass or more, more preferably 60% by mass or more, still more preferably 70% by mass or more, still more preferably 80% by mass or more, and further preferably 90% by mass or more. More preferably, it is 95 mass% or more and 100 mass% or less.

  The component (a1) preferably contains alkylbenzene sulfonic acid or a salt thereof from the viewpoint of further enhancing the bactericidal effect or antibacterial effect of the cationic surfactant, and the proportion of the alkylbenzene sulfonic acid or the salt thereof in the component (a1) is preferably Is 50% by weight or more, more preferably 55% by weight or more, still more preferably 65% by weight or more, still more preferably 75% by weight or more, still more preferably 85% by weight or more, still more preferably 96% by weight or more, and 100% by mass or less. The alkyl benzene sulfonic acid or a salt thereof is preferably an alkyl benzene sulfonic acid or a salt thereof having an alkyl group having 8 to 20 carbon atoms.

  The component (a1) is preferably an alkylbenzene sulfone having 8 to 20 carbon atoms from the viewpoint that the detergent composition for textiles according to the present invention further improves foaming properties and further enhances the bactericidal or antibacterial effect. An acid or a salt thereof and an alkyl sulfate ester salt having an alkyl group having from 10 to 16 carbon atoms, wherein in component (a1), an alkylbenzenesulfonic acid having from 8 to 20 carbon atoms or a salt thereof and from 10 to 16 carbon atoms The ratio of the alkyl sulfate ester salt having an alkyl group is preferably 50% by mass or more, more preferably 55% by mass or more, still more preferably 65% by mass or more, still more preferably 75% by mass or more, and further preferably 85% by mass. As described above, it is more preferably 96% by mass or more and 100% by mass or less. In this case, the mass ratio of alkylbenzene sulfonic acid having 8 to 20 carbon atoms or a salt thereof / alkyl sulfate ester salt having an alkyl group having 10 to 16 carbon atoms is preferably 2 or more, more preferably 3 or more, and Preferably it is 20 or less, More preferably, it is 10 or less.

[(A2) component]
The component (a2) is a nonionic surfactant having a polyoxyalkylene group. The component (a2) is an optional component. The component (a2) generally has an action of washing dirt adhering to the textile product, but the amount used in the present invention is inferior in foaming property or rinsing property during washing as compared with the anionic surfactant. Is limited.

As the component (a2), a nonionic surfactant having a polyoxyalkylene group having an average addition mole number of 3 mol or more and 50 mol is preferable.
As the component (a2), a nonionic surfactant represented by the following general formula (a2) is more preferable.
_{^{R 2a - (CO) x O-}} (A'O) m -R 3a (a2)
[Wherein R ^2a is an aliphatic hydrocarbon group having 8 to 18 carbon atoms, and A′O is an alkyleneoxy group selected from an alkyleneoxy group having 2 carbon atoms and an alkyleneoxy group having 3 carbon atoms. , X is a number of 0 or 1, m is an average added mole number of A′O, is a number of 3 or more and 50 or less, and R ^3a is a hydrogen atom or a methyl group. ]

The number of carbon atoms of R ^{2a in} the general formula (a2) is preferably 10 or more, more preferably 12 or more, and preferably 16 or less in that the detergency can be further improved.
Further, the carbon number of R ^{2a in} the general formula (a2) is preferably 10 or more, and preferably 16 or less, in that foaming at the time of washing of the powder cleaning composition for textiles of the present invention is difficult to inhibit. 14 or less is more preferable.
In addition, examples of the aliphatic hydrocarbon group represented by R ^{2a in} the general formula (a2) include an aliphatic hydrocarbon group selected from an alkyl group and an alkenyl group, and an alkyl group is preferable.
X in the general formula (a2) is a number of 0 or 1, and a number of 0 is preferable in terms of detergency.
M in the general formula (a2) is the average number of added moles of A′O, and is preferably 4 or more, more preferably 5 or more in terms of further improving the dirt cleaning property of the powder cleaning composition for textiles. Preferably, 6 or more is more preferable, 7 or more is more preferable, 45 or less is preferable, 40 or less is more preferable, 35 or less is further preferable, 30 or less is further preferable, 25 or less is further preferable, and 20 or less is further preferable. , 18 or less is more preferable, 16 or less is more preferable, 14 or less is more preferable, and 12 or less is more preferable.
A′O is an alkyleneoxy group selected from an alkyleneoxy group having 2 carbon atoms and an alkyleneoxy group having 3 carbon atoms. A′O includes, for example, one or more groups selected from an ethyleneoxy group and a propyleneoxy group. A′O is preferably an alkyleneoxy group containing an ethyleneoxy group from the viewpoint that foamability when the fiber product is washed using the powder cleaning composition for a textile product is difficult to inhibit. A′O is preferably an ethyleneoxy group.

[Composition of component (A)]
The powder cleaning composition for textiles of the present invention is a mass ratio of the content of the component (a1) and the total content of the components (a1) and (a2). (A1 component + (a2) component] is 0.85 or more and 1 or less. The component (a1) / [(a1) component + (a2) component] is 0.85 or more, preferably 0.86 or more, more preferably, from the viewpoint that foaming and rinsing properties during washing can be improved. 0.87 or more, more preferably 0.88 or more, still more preferably 0.89 or more, still more preferably 0.90 or more, still more preferably 0.91 or more, Still more preferably, it is 0.92 or more, More preferably, it is 0.93 or more, More preferably, it is 0.94 or more, More preferably, it is 0.95 or more, More preferably, it is 0.00. It is 96 or more, More preferably, it is 0.97 or more, More preferably, it is 0.98 or more, More preferably, it is 0.99 or more, and is 1 or less. The component (a1) / [(a1) component + (a2) component] may be 1.

  In the powder cleaning composition for textiles of the present invention, the component (A) is 10% by mass or more, preferably 11% by mass or more, more preferably 12%, from the viewpoint of further improving the cleaning property of dirt adhered to the textiles. It is contained by mass% or more, more preferably 13 mass% or more, still more preferably 14 mass% or more, and still more preferably 15 mass% or more. Moreover, the powder detergent composition for textiles of this invention is 40 mass% or less, Preferably it is 35 mass% or less from (A) component from a viewpoint that it is hard to inhibit the bactericidal effect or antimicrobial effect by a cationic surfactant. More preferably, the content is 30% by mass or less.

  In this invention, the value which converted the counter ion into the sodium ion is used for the mass of the component (a1).

The powder detergent composition for textiles of the present invention can contain an anionic surfactant other than the component (a1). The content ratio of the component (a1) and the content of the total anionic surfactant contained in the powder cleaning composition for textiles is the content ratio of the component (a1) / total anionic surfactant. The content is preferably 0.80 or more, more preferably 0.85 or more, still more preferably 0.90 or more, and still more preferably 0 from the viewpoint of further improving the bactericidal effect or antibacterial effect. .95 or more, and preferably 1.0 or less, and may be 1.0.
Examples of the anionic surfactant other than the component (a1) include fatty acids having 10 to 18 carbon atoms or salts thereof. Examples of the salt include one or more selected from alkali metal salts such as sodium salt and potassium salt, and alkaline earth metal salts such as magnesium salt.

<(B) component>
The component (B) is a cationic surfactant represented by the following general formula (1). The component (B) is an antibacterial effect of bacteria present in the cleaning liquid, or an antibacterial effect that suppresses the growth of bacteria even if the bacteria adhere to the textile after washing with the powder cleaning composition for textiles of the present invention and drying. Has an effect.

[Wherein, R ¹ is an aliphatic hydrocarbon group having 8 to 16 carbon atoms, R ² is a hydrocarbon group having 1 to 10 carbon atoms, and R ³ and R ⁴ are each independently , A group selected from a hydrocarbon group having 1 to 3 carbon atoms and a hydroxyalkyl group having 1 to 3 carbon atoms, and X ⁻ is an anion. ]

From the viewpoint of further enhancing the antibacterial effect, the carbon number of R ¹ is 8 or more, preferably 9 or more, more preferably 10 or more, still more preferably 12 or more, still more preferably 14 or more, and a bactericidal effect. From the viewpoint of further increasing the carbon number, R ¹ has 16 or less carbon atoms.

When R ¹ is an aliphatic hydrocarbon group having 8 or more and 10 or less carbon atoms, R ² is preferably a hydrocarbon group having 7 or more and 10 or less carbon atoms in that the bactericidal effect or antibacterial effect is further enhanced. A benzyl group or an aliphatic hydrocarbon group having 8 to 10 carbon atoms is more preferable.
In the case where R ¹ is an aliphatic hydrocarbon group having 11 to 16 carbon atoms, R ² is preferably an alkyl group having 1 to 7 carbon atoms in terms of further enhancing the bactericidal effect or antibacterial effect, Preferably it is a C1-C6 alkyl group, More preferably, it is a methyl group, an ethyl group, or a propyl group.

R ³ and R ⁴ are each independently a group selected from a hydrocarbon group having 1 to 3 carbon atoms and a hydroxyalkyl group having 1 to 3 carbon atoms, and the bactericidal effect or antibacterial effect is further enhanced. Preferably it is a C1-C3 hydrocarbon group, More preferably, it is a C1-C3 alkyl group, More preferably, it is an alkyl group chosen from a methyl group, an ethyl group, and a propyl group.

X ^- is an anion, a halogen ion and having 1 to 3 of alkyl sulfate ion carbon. Examples of the halogen ion include chloro ion, bromo ion, and iodine ion. Examples of the alkyl sulfate ion having 1 to 3 carbon atoms include methyl sulfate ion, ethyl sulfate ion, and propyl sulfate ion.

  Specific examples of the component (B) include an N-alkyltrimethylammonium salt (an alkyl group is an aliphatic alkyl group having 11 to 16 carbon atoms), an N-alkyl-N, N-dimethyl-N-ethylammonium salt. (The alkyl group is an aliphatic alkyl group having 11 to 16 carbon atoms) and N-alkyl-N, N-dimethyl-N-benzylammonium salt (the alkyl group is an aliphatic alkyl group having 8 to 16 carbon atoms), N , N-dialkyl (the alkyl group is an aliphatic alkyl group having 8 to 10 carbon atoms) -N, N-dimethylammonium salt and N, N-dialkyl (the alkyl group is an aliphatic alkyl group having 8 to 10 carbon atoms) One or more kinds of cationic surfactants selected from —N-ethyl-N-methylammonium salts are mentioned.

  The component (B) is preferably an N-alkyltrimethylammonium salt (the alkyl group is carbon) in that the bactericidal effect or antibacterial effect can be maintained even when a complex is formed with the components (a1) and (D) of the present invention. N-alkyl-N, N-dimethyl-N-ethylammonium salt (wherein the alkyl group is an aliphatic alkyl group having 11 to 16 carbon atoms) and N-alkyl-N, One or more cationic surfactants selected from N-dimethyl-N-benzylammonium salts (wherein the alkyl group is an aliphatic alkyl group having 8 to 16 carbon atoms), more preferably N-alkyltrimethylammonium salts ( The alkyl group is an aliphatic alkyl group having 11 to 16 carbon atoms), N-alkyl-N, N-dimethyl-N-ethylammonium salt (the alkyl group is Is at least one cationic surfactant selected from the prime 11 to 16 aliphatic alkyl group).

  Specific examples of the N-alkyltrimethylammonium salt (the alkyl group is an aliphatic alkyl group having 11 to 16 carbon atoms) include N-lauryltrimethylammonium salt, N-myristyltrimethylammonium salt, and N-palmityltrimethylammonium salt. One or more selected cationic surfactants may be mentioned.

  Specific examples of N-alkyl-N, N-dimethyl-N-ethylammonium salts (wherein the alkyl group is an aliphatic alkyl group having 11 to 16 carbon atoms) include N-lauryl-N, N-dimethyl-N-ethyl. Examples thereof include one or more cationic surfactants selected from ammonium salts, N-myristyl-N, N-dimethyl-N-ethylammonium salts, and N-palmityl-N, N-dimethyl-N-ethylammonium salts.

  Specific examples of N-alkyl-N, N-dimethyl-N-benzylammonium salt (wherein the alkyl group is an aliphatic alkyl group having 8 to 16 carbon atoms) include N-octyl-N, N-dimethyl-N-benzyl. Ammonium salt, N-decyl-N, N-dimethyl-N-benzylammonium salt, N-lauryl-N, N-dimethyl-N-benzylammonium salt, N-myristyl-N, N-dimethyl-N-benzylammonium salt And one or more cationic surfactants selected from N-palmityl-N, N-dimethyl-N-benzylammonium salt.

  Specific examples of N, N-dialkyl (an alkyl group is an aliphatic alkyl group having 8 to 10 carbon atoms) -N, N-dimethylammonium salt include N, N-dioctyl-N, N-dimethylammonium salt and N , N-dinonyl-N, N-dimethylammonium salt and one or more cationic surfactants selected from N, N-didecyl-N, N-dimethylammonium salt.

  Specific examples of N, N-dialkyl (alkyl group is an aliphatic alkyl group having 8 to 10 carbon atoms) -N-ethyl-N-methylammonium salt include N, N-dioctyl-N-ethyl-N-methyl. Examples thereof include one or more cationic surfactants selected from ammonium salts, N, N-dinonyl-N-ethyl-N-methylammonium salts, and N, N-didecyl-N-ethyl-N-methylammonium salts.

  Examples of the anion which is a counter ion to be a salt include a halogen ion and an alkyl sulfate ion having 1 to 3 carbon atoms. Examples of the halogen ion include chloro ion, bromo ion, and iodine ion. Examples of the alkyl sulfate ion having 1 to 3 carbon atoms include methyl sulfate ion, ethyl sulfate ion, and propyl sulfate ion.

  The powder cleaning composition for textiles according to the present invention has a component (B) of 0.5% by mass or more, preferably 0.6% by mass or more, more preferably 0, in terms of further enhancing the bactericidal effect or antibacterial effect. 0.7% by mass or more, more preferably 0.8% by mass or more, and 5% by mass or less, preferably 4.5% by mass or less, more preferably 4% by mass or less, and still more preferably 3.5% by mass or less. More preferably, the content is 3% by mass or less, and still more preferably 2.5% by mass or less.

  In the present invention, the mass of the component (B) is a value obtained by converting an anion, which is a counter ion, into a chloro ion.

<(C) component>
Component (C) is one or more alkali agents selected from inorganic carbonates and inorganic hydrogen carbonates. The component (C) is a quaternary ammonium group that is a component (D) and a component (B) that are sufficiently dissociated in the cleaning liquid by sufficiently dissociating the carboxylic acid group of the component (D) or a salt thereof into ions. The cationic surfactant having a ionic bond makes it easier to form a complex by ionic bonding. Thereby, even if it exists in presence of the anionic surfactant which is (A) component, the bactericidal effect with respect to the microbe in a washing | cleaning liquid can be maintained, and a bactericidal effect can be maintained. Furthermore, the antibacterial effect of the textile product can be enhanced. Furthermore, this invention can provide the powder cleaning composition for textiles which the antibacterial effect increases by the user of the textile cleaning powder cleaner repeatedly washing textiles.

Specific examples of the inorganic carbonate include one or more inorganic carbonates selected from monovalent or divalent metal carbonates and ammonium carbonate. Examples of the monovalent metal carbonate include alkali metal carbonates, and more specifically, one or more compounds selected from sodium carbonate, potassium carbonate, and lithium carbonate. Examples of the divalent metal carbonate include alkaline earth metal carbonates, and more specifically, magnesium carbonate.
Specific examples of the inorganic hydrogen carbonate include one or more inorganic hydrogen carbonates selected from monovalent or divalent metal hydrogen carbonates and ammonium hydrogen carbonate. Examples of the monovalent metal hydrogen carbonate include alkali metal hydrogen carbonate, and more specifically, one or more compounds selected from sodium hydrogen carbonate, potassium hydrogen carbonate and lithium hydrogen carbonate. Examples of the divalent metal hydrogen carbonate include alkaline earth metal hydrogen carbonate, and more specifically, magnesium hydrogen carbonate.
The component (C) is preferably a monovalent metal carbonate, ammonium carbonate, monovalent, in that even if the component (a1) is present, it is more difficult to inhibit the sterilization effect or antibacterial effect of the component (B). One or more compounds selected from metal hydrogen carbonates and ammonium hydrogen carbonates, more preferably monovalent metal carbonates and monovalent metal hydrogen carbonates, and even more preferably alkali metal carbonates. And one or more compounds selected from alkali metal hydrogen carbonates, and more preferably one or more compounds selected from sodium carbonate, potassium carbonate, sodium hydrogen carbonate and potassium hydrogen carbonate.

  The powder cleaning composition for textiles of the present invention enhances the antibacterial effect of the textiles washed with the cleaning composition for textiles of the present invention, or a viewpoint capable of imparting an antibacterial effect to textiles with a smaller number of washings. From component (C), 20% by mass or more, preferably 21% by mass or more, more preferably 25% by mass or more, still more preferably 28% by mass or more, still more preferably 30% by mass or more, and even more preferably 32%. % By mass, more preferably 35% by mass or more, still more preferably 38% by mass or more, still more preferably 40% by mass or more, still more preferably 45% by mass or more, still more preferably 50% by mass or more, and 70% by mass or less.

<(D) component>
The component (D) is a polymer having a carboxylic acid group or a salt thereof and having a weight average molecular weight of 3000 or more. By using the component (D) having a specific molecular weight, even if the component (a1) is present, the sterilization effect or the antibacterial effect of the component (B) can be suppressed. The component (D) is not particularly limited, and examples thereof include a polymer selected from polyacrylic acid or a salt thereof and a copolymer of acrylic acid and maleic acid or a salt thereof (hereinafter referred to as component (D1)).
Examples of polyacrylic acid or a salt thereof include polyacrylic acid, sodium polyacrylate, and potassium polyacrylate, and preferably sodium polyacrylate and potassium polyacrylate.
Examples of the copolymer of acrylic acid and maleic acid or a salt thereof include acrylic acid and maleic acid copolymer, sodium salt of acrylic acid and maleic acid copolymer, potassium salt of acrylic acid and maleic acid copolymer, preferably acrylic acid. The sodium salt of a copolymer of acid and maleic acid, and the potassium salt of a copolymer of acrylic acid and maleic acid. The molar ratio of the copolymer of acrylic acid and maleic acid is preferably 1/99 or more, more preferably 10/90 or more, and preferably 99/1 or less as moles of acrylic acid / mole of maleic acid. Preferably it is 90/10 or less.

  The component (D1) of the present invention includes monomers other than acrylic acid and maleic acid, and a monomer copolymerizable with acrylic acid and / or maleic acid, as long as the effects of the present invention are not hindered. It may be a copolymer. Examples of monomers other than acrylic acid and maleic acid that can be copolymerized with acrylic acid and / or maleic acid include vinyl monomers, acrylic monomers, styrene monomers, and more specifically methacrylic monomers. Examples include acid, methyl acrylate, ethyl acrylate, methyl methacrylate, and styrene. The molar ratio in the component (D1) of the monomer other than acrylic acid and maleic acid, which is copolymerizable with acrylic acid and / or maleic acid, is a water-soluble physical property or component of the present invention as the component (D1). Although it is not limited as long as it does not affect the manifestation of the effect, it is preferably 0 mol% or more, and preferably 5 mol% or less, more preferably 3 mol% or less in the component (D1). % Is most preferred. Therefore, the polyacrylic acid of the present invention or a salt thereof, and a copolymer of acrylic acid and maleic acid or a salt thereof are monomers other than acrylic acid and maleic acid among all constituent monomers, and are acrylic acid and / or maleic acid. It may be a polymer or a copolymer containing a monomer copolymerizable with the monomer in an amount of 0 mol% to 5 mol%.

  As other preferable component (D), as a structural unit, a monomer structural unit having at least one selected from a carboxylic acid group and an acid anhydride (hereinafter referred to as an acid-type monomer structural unit), and a carbon number of 3 Examples thereof include polymers having 10 or less hydrocarbon monomer structural units (hereinafter referred to as hydrocarbon-type monomer structural units) [hereinafter referred to as (D2) component]. Examples of the acid anhydride include a structure in which two molecules of oxo acid are dehydrated and condensed, and more specifically, an anhydrous structure from two carboxylic acid groups.

  The acid-type monomer structural unit is obtained by polymerization of a monomer that forms such a structure by polymerization. Examples of the monomer from which the structural unit is derived include maleic acid and maleic anhydride. The acid-type monomer constituent unit is preferably at least one monomer constituent unit selected from maleic acid and maleic anhydride.

  The hydrocarbon type monomer structural unit is obtained by polymerization of a polymerizable hydrocarbon compound having 3 to 10 carbon atoms. Examples of the polymerizable hydrocarbon compound include pentene, isobutylene, diisobutylene, and styrene. The hydrocarbon type monomer structural unit is preferably at least one monomer structural unit selected from pentene, isobutylene, diisobutylene and styrene, more preferably at least one monomer structural unit selected from diisobutylene and styrene, and a styrene monomer. More preferred is a structural unit.

  As component (D2), one or more maleic acid monomers selected from maleic acid and maleic anhydride and one or more hydrocarbon monomers selected from pentene, isobutylene, diisobutylene and styrene are used as constituent monomers. And a polymer compound in which the total of the maleic acid type monomer unit and the hydrocarbon type monomer is 80 mol% or more.

In the component (D2), the molar ratio of the acid type monomer constituent unit / hydrocarbon type monomer constituent unit is preferably 20/80 or more, more preferably 30/70 or more, and preferably 90/10 or less, more Preferably it is 80/20 or less.
In the component (D2) component, the total of the maleic acid type monomer unit and the hydrocarbon type monomer is 80 mol% or more, preferably 90 mol% or more, more preferably 100 mol% in the constituent monomers.

The weight average molecular weight of the component (D) is 3000 or more in that it further enhances the bactericidal or antibacterial effect of the complex by ionic bonding with the cationic surfactant having a quaternary ammonium group as the component (B). , Preferably 3500 or more, more preferably 4000 or more, still more preferably 5000 or more, still more preferably 6000 or more, still more preferably 7000 or more, even more preferably 8000 or more. , More preferably 9000 or more, still more preferably 10,000 or more, and preferably 500,000 or less, more preferably 300,000 or less.
This weight average molecular weight can be measured according to the following weight average molecular weight measurement method.
<Measurement method of weight average molecular weight>
The weight average molecular weight of the component (D) can be measured by GPC (gel permeation chromatography), and the weight average molecular weight (Mw) can be obtained from the converted standard substance.
The GPC measurement conditions are shown below.
・ Column: Tosoh Corporation, trade name: TSK-GEL guard PWXL
Product name: TSK-GEL G4000 PWXL, manufactured by Tosoh Corporation
Product name: TSK-GEL G2500 PWXL, manufactured by Tosoh Corporation
Mobile phase: 0.1 mol / L potassium dihydrogen phosphate and 0.1 mol / L sodium dihydrogen phosphate in water / acetonitrile = 90/10 (volume ratio)
-Detector: Differential refractive index detector-Column temperature: 40 ° C
・ Flow rate: 1.0 mL / min
・ Conversion standard material: Polyacrylic acid (American Standard Corporation (AMERICANSTANDARDCORP))
Sample: Ion exchange water is added to a polymer aqueous solution containing a solid content of 0.8 g to prepare a total liquid volume of 200 mL, and 10 μL is taken from this prepared liquid and injected into a column.

  The component (D) is one or more polymers selected from polyacrylic acid having a weight average molecular weight of 3,000 to 500,000 or less and a salt thereof, and a copolymer of acrylic acid and maleic acid having a weight average molecular weight of 3,000 to 500,000 or less, or a salt thereof. Preferably, at least one polymer selected from polyacrylic acid having a weight average molecular weight of 3,000 to 500,000 or a salt thereof is more preferable.

  The powder cleaning composition for textiles of the present invention is further improved in the bactericidal effect or antibacterial effect due to the complex formed by ion binding with the cationic surfactant having a quaternary ammonium group as the component (B). Component D) is preferably 1% by mass or more, more preferably 1.2% by mass or more, still more preferably 1.5% by mass or more, still more preferably 1.7% by mass or more, and still more preferably 2% by mass. Or more, more preferably 2.5% by mass or more, still more preferably 3% by mass or more, still more preferably 4% by mass or more, still more preferably 5% by mass or more, and preferably 10% by mass or less. .

  The powder cleaning composition for textiles of the present invention enhances the antibacterial effect of the textiles washed with the cleaning composition for textiles of the present invention, or a viewpoint that can impart an antibacterial effect to the textiles with fewer washings. Therefore, the component (D) is preferably 1% by mass or more, more preferably 1.2% by mass or more, still more preferably 1.5% by mass or more, still more preferably 1.7% by mass or more, and still more preferably 2% by mass or more, more preferably 2.2% by mass or more, still more preferably 2.5% by mass or more, still more preferably 3.0% by mass or more, still more preferably 3.5% by mass or more, more More preferably, it is 4.0 mass% or more, More preferably, it is 5.0 mass% or more, Preferably it is 10 mass% or less, More preferably, it is 9 mass% or less, More preferably, it contains 8 mass% or less.

  The powder cleaning composition for textiles according to the present invention has a composition (D) from the viewpoint of further enhancing the bactericidal effect of bacteria present in the cleaning liquid, or from the viewpoint of imparting an antibacterial effect to textiles with a smaller number of washings. ) Component content and (B) component mass ratio, component (D) / component (B) is preferably 0.5 or more, more preferably 1 or more, still more preferably 1.2 or more , Still more preferably 1.5 or more, still more preferably 2.0 or more, still more preferably 2.5 or more, still more preferably 3.0 or more, still more preferably 3.5 or more, still more preferably 4.0 or more, more preferably 4.5 or more, still more preferably 5.0 or more, and preferably 10 or less, more preferably 9 or less, still more preferably 8 or less, still more preferably 7 or less, more More preferably Less.

  In this invention, the value which converted the counter ion into the sodium ion is used for the mass of (D) component.

<Optional components, etc.>
[(E) component]
The powder cleaning composition for textiles of the present invention preferably contains one or more metal ion scavengers selected from zeolite, tripolyphosphate and alkali metal silicate as component (E). (E) component is generally used in order to improve the washing | cleaning property of the stain | pollution | contamination adhering to the textiles. However, in this invention, it has the effect | action which raises the bactericidal effect or antimicrobial effect of the cationic surfactant which is (B) component especially. This is to increase the adsorptivity of the complex of (B) component cationic surfactant and (a1) component to the fungus, or (B) component forms a complex with (a1) component. Even if it is, it is thought that it is for improving the effect | action with respect to microbe of the cationic surfactant which is (B) component.

  Zeolites are also called crystalline aluminosilicates. As specific zeolite, crystalline aluminosilicates such as A-type, X-type, and P-type zeolite can be contained. The average primary particle diameter 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 “Toyo Builder”: manufactured by Tosoh Corporation, oil absorption capacity by JIS K 5101 method: 40 mL / 100 g or more). In addition, P type (for example, trade names “Ducil A24”, “ZSEO64”, etc .; all manufactured by Crosfield; oil absorption capacity of 60 to 150 mL / 100 g), X type (for example, trade name “WessalithXD”; manufactured by Degussa) An oil absorption capacity of 80 to 100 mL / 100 g), and a hybrid zeolite described in International Publication No. 9842622 is also preferable.

  The counter ion in the tripolyphosphate is preferably an alkali metal ion, more preferably an ion selected from sodium ion and potassium ion, from the viewpoint of enhancing the bactericidal effect or antibacterial effect of the cationic surfactant which is the component (B). In all counter ions, the mass ratio of sodium ions and potassium ions is preferably 70% by mass or more, and more preferably 85% by mass or more. Orthophosphates and pyrophosphates can be used in combination with tripolyphosphates. The amount of tripolyphosphate, orthophosphate, and mass ratio of pyrophosphate are tripolyphosphate / orthophosphate / pyrophosphate = (80 to 97 parts by mass) / (1 to 10 parts by mass). (Less than or equal to 2 parts by weight and less than or equal to 10 parts by weight) is preferable (the amount is calculated as an anhydride and the total of the three parts by weight is 100 parts by weight).

  The alkali metal silicate is selected from crystalline sodium silicate, amorphous sodium silicate and liquid sodium silicate, in order to enhance the bactericidal or antibacterial effect of the cationic surfactant which is component (B). One or more sodium silicates are preferred.

  (E) The metal ion scavenger which is a component can increase the antibacterial effect of the fiber product, or the fiber product whose antibacterial effect is enhanced by repeatedly washing the fiber product by the user of the powder cleaning agent for the fiber product It is preferable to use two or more metal ion scavengers selected from zeolites, tripolyphosphates and alkali metal silicates in that a powder detergent composition can be provided. The component (E) is more preferably zeolite and tripolyphosphate.

  When the powder cleaning composition for textiles of the present invention contains the component (E), the content of the component (E) in the composition is preferably 5% in terms of further enhancing the bactericidal effect or the antibacterial effect. % Or more, more preferably 6% by weight or more, still more preferably 7% by weight or more, still more preferably 8% by weight or more, still more preferably 9% by weight or more, and even more preferably. Is 10% by mass or more, more preferably 11% by mass or more, and preferably 30% by mass or less, more preferably 20% by mass or less.

[Other ingredients]
The powder cleaning composition for textiles of the present invention can further contain the following components.
(I) You may contain a surface modifier from a viewpoint of the fluidity | liquidity and non-caking property of detergent particle | grains. Examples of the surface modified coating agent include calcium silicate, silicon dioxide, bentonite, talc, clay minerals such as clay, carboxymethyl cellulose, and polyethylene glycol. The content of the surface modifier is preferably 20% by mass or less, and more preferably 15% by mass or less in the powder cleaning composition for textiles of the present invention, from the viewpoint of storage stability. Moreover, 1 mass% or more in the cleaning composition of this invention is preferable at the point of surface modification, 3 mass% or more is more preferable, and 5 mass% or more is more preferable.
(Ii) Color transfer inhibitors such as polyvinylpyrrolidone (iii) Enzymes such as cellulase, amylase, pectinase, protease, lipase (iv) Fluorescent dyes such as Tinopearl CBS (trade name, manufactured by Ciba Specialty Chemicals) and Whitetex SA (product) Name, manufactured by Sumitomo Chemical Co., Ltd.) Fluorescent dyes (v) Antioxidants such as butylhydroxytoluene, distyrenated cresol, sodium sulfite and sodium bisulfite (vii) dyes, perfumes, antibacterial preservatives, silicone Antifoaming agent (viii) Water such as water obtained by adding sodium hypochlorite to ion-exchanged water, tap water, ion-exchanged water in an amount of 0.1 to 5 mg / kg based on the mass of water

  The powder cleaning composition for textiles of the present invention is suitable for washing by hand. In the case of hand washing, from the viewpoint of improving detergency against oil stains, the powder cleaning composition for textiles of the present invention is preferably 0.5 g or more, more preferably 0.7 g or more, with respect to 1 L of water. More preferably, it is 1 g or more, and preferably 30 g or less, more preferably 20 g or less, still more preferably 10 g or less, and still more preferably 5 g or less.

  The powder cleaning composition for textiles 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 during use, the powder detergent composition for textiles of the present invention is preferably 0.3 g or more, more preferably, 1 L of water. Is 0.5 g or more, more preferably 1 g or more, and preferably 10 g or less, more preferably 7 g or less, and even more preferably 3 g or less.

  The form of the detergent composition for textiles of the present invention is a powder. The method for producing the detergent composition for textiles of the present invention as a powder is not particularly limited. For example, extrusion granulation method, compression granulation method, melt granulation method, spray drying granulation method, fluidized bed Examples include 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. Also good.

  The bulk density of the powder cleaning composition for textiles 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 it is 1000 g / L or less, More preferably, it is 900 g / L or less, More preferably, it is 800 g / L or less.

The average particle size of the powder cleaning composition for textiles of the present invention is preferably 100 μm or more, more preferably 150 μm or more, more preferably 200 μm or more, and preferably 800 μm or less, more preferably 750 μm or less. 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 textile products of the present invention is used for washing textile products 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.

[How to wash textile products]
As a cleaning method using the powder cleaning composition for textiles of the present invention, a fiber cleaning is performed using a cleaning liquid obtained by mixing the powder cleaning composition for textiles of the present invention and water. Product cleaning methods.
The present invention provides a method for cleaning a textile product, wherein the textile product is washed with a cleaning liquid obtained by mixing the powder cleaning composition for textile products of the present invention and water having a German hardness of 1 ° dH to 50 ° dH. .

The pH of the cleaning liquid is preferably 5.5 or more, more preferably 6 or more, still more preferably 7 or more, still more preferably 8 or more, still more preferably 8.5 or more, still more preferably 9 or more, and even more preferably. Is 10 or more, and preferably 10.5 or less.
The pH of the cleaning liquid of the present invention can be measured using, for example, 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.

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 for preparing the cleaning liquid includes water having an alkalinity of 0 mg / L or more and 200 mg / L or less and a German hardness of 1 ° dH or more and 50 ° dH or less.

  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 index 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.

  According to the method for cleaning a textile product of the present invention, even when water having a hardness component is used, the bactericidal effect of bacteria present in the cleaning liquid or the antibacterial effect on the textile product after cleaning can be exhibited. The German hardness of the water used for washing can be used even if it is 1 ° dH or more, more preferably 5 ° dH or more, from the viewpoint of lowering the pH of the water used for washing. On the other hand, the German hardness of water can be selected from 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

In the textile product cleaning method of the present invention, it is preferable that the textile product containing the cleaning liquid be hand-washed.
Examples of the hand-washing method include a method of washing fiber products with hands, a method of rubbing the fiber products by hand, and a method of rubbing the fiber products with a tool such as a brush in which fiber bundles are planted.
In the case of hand washing, from the viewpoint of improving the detergency against oil stains, the textile composition detergent composition of the present invention is preferably 0.5 g or more, more preferably 0.7 g or more, and still more preferably, with respect to 1 L of water. Is 1 g or more, and preferably 30 g or less, more preferably 20 g or less, still more preferably 10 g or less, and even more preferably 5 g or less.

  In the textile product washing method of the present invention, the textile product can be washed with a washing machine. In the case of washing with a washing machine, the textile composition cleaning composition of the present invention is preferably 0.3 g or more, more preferably 0.5 g or more, and still more preferably 1 g or more with respect to 1 L of water. , Preferably 10 g or less, more preferably 7 g or less, still more preferably 3 g or less.

In the textile product cleaning method of the present invention, it is preferable to wash the textile product after 10 minutes to 60 minutes have elapsed since the cleaning liquid and the textile product were first contacted.
In the textile product cleaning method of the present invention, it is preferable that the textile product is washed by hand after 10 minutes to 60 minutes have elapsed since the cleaning liquid and the textile product were first contacted. For example, in the textile product cleaning method of the present invention, the textile product can be hand-washed after being immersed in the cleaning liquid for 10 minutes or more and 60 minutes or less.

  The washing | cleaning method of this invention can have the process of rinsing the textiles after washing | cleaning with water. The water used for rinsing preferably has the above German hardness. The water used for rinsing preferably has the alkalinity described above. The water used for rinsing preferably has the above German hardness and alkalinity.

The present invention discloses the following powder cleaning composition for textiles and a method for washing textiles. The matters described in the powder cleaning composition for textiles and the textile cleaning method of the present invention can be appropriately applied to the following embodiments.
<1>
The following (A) component is 10 mass% to 40 mass%, the following (B) component is 0.5 mass% to 5 mass%, the following (C) component is 20 mass% to 70 mass%, and the following ( D) containing ingredients,
(A1) component / [(a1) component + (a2) component], which is a mass ratio of the content of the component (a1) and the total content of the components (a1) and (a2), is 0. .85 or more and 1 or less,
Powder cleaning composition for textile products.
(A) Component: selected from the following (a1) component and optional (a2) component (a1) component: an anionic surfactant having a sulfonic acid group or a salt thereof, and an anionic surfactant having a sulfate ester salt One or more types of anionic surfactant (a2) Component: Nonionic surfactant having a polyoxyalkylene group (B) Component: Cationic surfactant represented by the following general formula (1)

[Wherein, R ¹ is an aliphatic hydrocarbon group having 8 to 16 carbon atoms, R ² is a hydrocarbon group having 1 to 10 carbon atoms, and R ³ and R ⁴ are each independently , A group selected from a hydrocarbon group having 1 to 3 carbon atoms and a hydroxyalkyl group having 1 to 3 carbon atoms, and X ⁻ is an anion. ]
(C) Component: one or more alkali agents selected from inorganic carbonates and inorganic hydrogen carbonates (D) Component: a polymer having a carboxylic acid group or a salt thereof and having a weight average molecular weight of 3000 or more

<2>
The component (a1) contains an anionic surfactant having a sulfonic acid group or a salt thereof, and the proportion of the anionic surfactant having a sulfonic acid group or a salt thereof in the component (a1) is preferably 50% by mass or more. Preferably it is 60% by mass or more, more preferably 70% by mass or more, still more preferably 80% by mass or more, more preferably 90% by mass or more, still more preferably 95% by mass or more, and 100% by mass or less. The powder cleaning composition for textiles as described in <1>.

<3>
(A1) component contains alkylbenzenesulfonic acid or a salt thereof, preferably an alkylbenzenesulfonic acid or salt thereof having an alkyl group having 8 to 20 carbon atoms, and (a1) the proportion of the alkylbenzenesulfonic acid or salt thereof in component , Preferably 50% by mass or more, more preferably 55% by mass or more, still more preferably 65% by mass or more, still more preferably 75% by mass or more, still more preferably 85% by mass or more, still more preferably 96% by mass or more, And the powder cleaning composition for textiles as described in <2> which is 100 mass% or less.

<4>
The component (a1) includes an alkylbenzene sulfonic acid having 8 to 20 carbon atoms or a salt thereof and an alkyl sulfate ester salt having an alkyl group having 10 to 16 carbon atoms, and (a1) the component has 8 to 20 carbon atoms. The ratio of the alkyl benzene sulfonic acid or the salt thereof and the alkyl sulfate ester salt having an alkyl group having 10 to 16 carbon atoms is preferably 50% by mass or more, more preferably 55% by mass or more, still more preferably 65% by mass or more, More preferably, it is 75 mass% or more, More preferably, it is 85 mass% or more, More preferably, it is 96 mass% or more, and is 100 mass% or less, The powder cleaning composition for textiles as described in <1>.

<5>
(A2) The powder cleaning composition for textiles according to any one of <1> to <4>, wherein the component is a nonionic surfactant represented by the following general formula (a2).
_{^{R 2a - (CO) x O-}} (A'O) m -R 3a (a2)
[Wherein R ^2a is an aliphatic hydrocarbon group having 8 to 18 carbon atoms, and A′O is an alkyleneoxy group selected from an alkyleneoxy group having 2 carbon atoms and an alkyleneoxy group having 3 carbon atoms. , X is a number of 0 or 1, m is an average added mole number of A′O, is a number of 3 or more and 50 or less, and R ^3a is a hydrogen atom or a methyl group. ]

<6>
The powder cleaning composition for textiles according to <5>, wherein in the general formula (a2), A′O is one or more groups selected from ethyleneoxy group and propyleneoxy group.

<7>
The powder cleaning composition for textiles according to <5> or <6>, wherein in the general formula (a2), A′O is an ethyleneoxy group.

<8>
In the general formula (1), R ¹ is an aliphatic hydrocarbon group having 11 to 16 carbon atoms, and R ² is an alkyl group having 1 to 7 carbon atoms, <1> to <7> A powder cleaning composition for textiles according to any one of the above.

<9>
In the general formula (1), R ² is an alkyl group having 1 to 6 carbon atoms, <1> to textiles powder detergent composition according to any one of <8>.

<10>
The powder cleaning composition for textiles according to any one of <1> to <9>, wherein in the general formula (1), R ² is a methyl group, an ethyl group, or a propyl group.

<11>
In the general formula (1), R ¹ is an aliphatic hydrocarbon group having 8 to 10 carbon atoms, and R ² is a hydrocarbon group having 7 to 10 carbon atoms, <1> to <7 > The powder cleaning composition for textiles in any one of>.

<12>
The powder cleaning composition for textiles according to <11>, wherein, in the general formula (1), R ² is a benzyl group or an aliphatic hydrocarbon group having 8 to 10 carbon atoms.

<13>
In the general formula (1), R ³ and R ⁴ are each independently a hydrocarbon group having 1 to 3 carbon atoms, <1> to <12> Agent composition.

<14>
(C) The powder cleaning composition for textiles in any one of <1>-<13> whose content of a component is 25 mass% or more and 60 mass% or less.

<15>
The component (C) is one or more alkali agents selected from monovalent or divalent metal carbonates, ammonium carbonates, monovalent or divalent metal hydrogen carbonates and ammonium hydrogen carbonates, <1 >-<14> The powder cleaning composition for textiles in any one of.

<16>
The monovalent metal carbonate is an alkali metal carbonate, the monovalent metal bicarbonate is an alkali metal bicarbonate, and the divalent metal carbonate is an alkaline earth metal carbonate. The powder cleaning composition for textiles according to <15>, wherein the divalent metal hydrogen carbonate is an alkali metal hydrogen carbonate.

<17>
Component (D) is one or more polymers selected from polyacrylic acid having a weight average molecular weight of 3,000 to 500,000 or a salt thereof and a copolymer of acrylic acid and maleic acid having a weight average molecular weight of 3,000 to 500,000 or a salt or a salt thereof. The powder cleaning composition for textiles according to any one of <1> to <16>.

<18>
<1> to <17, wherein (D) component / (B) component is 0.5 or more and 10 or less, which is a mass ratio of the content of component (D) and the content of component (B) in the composition. > The powder cleaning composition for textiles in any one of>.

<19>
(E) As a component, it contains 5 mass% or more and 30 mass% or less of 1 or more types of metal ion scavenger chosen from a zeolite, a tripolyphosphate, and an alkali metal silicate, It is described in <1>-<18>. Powder cleaning composition for textile products.

<20>
(E) As a component, the powder cleaning composition for textiles as described in <19> containing 2 or more types of metal ion scavenger chosen from a zeolite, a tripolyphosphate, and an alkali metal silicate.

<21>
(E) The powder cleaning composition for textiles as described in <20> whose component is a zeolite and a tripolyphosphate.

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

<23>
<1>-<22> The textiles which wash textiles with the washing liquid which mixed the powder cleaning agent composition for textiles according to any 1 and the water whose German hardness is 1 ° dH-50 ° dH Product cleaning method.

<24>
The method for cleaning a textile product according to <23>, wherein the textile product is washed after 10 minutes or more and 60 minutes or less have elapsed after the cleaning solution and the textile product are first contacted.

<Compounding ingredients>
The powder cleaning composition for textiles shown in Table 1, Table 2 and Table 3 was prepared using the following.
[Component (A)]
(A1) Component (a1-1): Sodium dodecylbenzenesulfonate (a1-2): Sodium alkyl sulfate ester [Alkyl group composition: lauryl group / myristyl group / palmityl group = 67/28/5 (mass ratio) ]
(A2-1): polyoxyethylene (6) lauryl ether [numbers in parentheses are average added moles of oxyethylene groups]]

[(B) component]
(B-1): Lauryltrimethylammonium chloride (Wako Pure Chemical Industries, Ltd.)
(B-2): N-myristyl-N-ethyl-N, N-dimethylammonium methylsulfate (manufactured by Wako Pure Chemical Industries, Ltd.)
(B-3): Palmityl trimethyl ammonium chloride (manufactured by Wako Pure Chemical Industries, Ltd.)

[Component (C)]
(C-1): Sodium carbonate (Wako Pure Chemical Industries, Ltd.)

[Component (D)]
(D-1): Sodium polyacrylate (weight average molecular weight 5000)
(D-2): Sodium polyacrylate (weight average molecular weight 10,000)
(D-3): Sodium polyacrylate (weight average molecular weight 25000)
(D-4): Sodium polyacrylate (weight average molecular weight 250,000)

[(D ′) Component: Comparative Compound of (D) Component]
(D′-1): Sodium polyacrylate (weight average molecular weight 1200)

[(E) component]
(E-1): Zeolite [4A zeolite, average particle size 3 μm (manufactured by Tosoh Corporation)]
(E-2): Sodium tripolyphosphate (manufactured by Wako Pure Chemical Industries, Ltd.)

Sodium sulfate: anhydrous neutral sodium sulfate (manufactured by Shikoku Kasei Kogyo Co., Ltd.)
Enzyme: Sabinase 12T, manufactured by Novozymes, protease granulated product, the ratio of enzyme protein in 1 g of the granulated product is 80 mg / g. The numerical values in the table indicate the mass of the enzyme protein.
Fluorescent dye: Tinopearl CBS, Perfume made by BASF: Perfume composition {numbers in parentheses are parts by mass, phenylethyl alcohol (10), camphor (20), citronellal (10), l-menthol (20), aldehyde C -9 (10), nerol (10), diphenyl oxide (20)]

<Performance evaluation>
The following evaluation was performed about the powder detergent composition obtained by the Example and the comparative example. The results are shown in Tables 1-3.

[Evaluation of foaming and rinsing properties]
<Fiber products for evaluation>
As an evaluation fiber product, an undergarment, a cotton knit fabric or a cotton / polyester broad blended dyeing cloth was used. Two men's L-necked underwear (Gunze Co., Ltd., trade name Gunze YG, 100% cotton, about 100g / 1) on each chest, 2 artificially contaminated fabrics and 1 mud soiled fabric below Sewed. Furthermore, the following model sebum stain A heated to 60 ° C. was applied to the underwear collar part using a spoid (φ: 2 mm) so that 3 g was 1 g (approx. 0.33 g per coat). . These three clothes were used as evaluation clothes.
(1) Artificial soiling cloth The artificial soiling cloth used is 6cm x 6cm cotton / polyester broad blended dyeing cloth (cotton / polyester ratio = 35/65, purchased from Tanigami Shoten). Gravure coating is applied to make 100 mg per sheet.
-Artificial dirt The composition containing the following A, B, C, D, E was made into artificial dirt. Each mass% is a ratio in the artificial dirt of the final composition, and the amount of B was adjusted so that the total was 100 mass%. A: Model sebum soil (mass% in artificial dirt is 0.44 mass% lauric acid, 3.15 mass% myristic acid, 2.35 mass% pentadecanoic acid, 6.31 mass% palmitic acid, 0 heptadecanoic acid 0 .44 wt%, stearic acid 1.6 wt%, oleic acid 7.91 wt%, triolein 13.33 wt%, n-hexadecyl palmitate 2.22 wt%, squalene 6.66 wt% Use)
B: Hard water obtained by weighing 105 mg of calcium chloride dihydrate and dissolving in distilled water to obtain 1,000 ml C: 1.98% by mass of egg white lecithin liquid crystal (11.37 g of arginine hydrochloride in 80 ml of distilled water, histidine 4 20 g and 2.44 g of serine were dissolved, and the pH was adjusted to 5.0 with concentrated hydrochloric acid, and then this solution and egg white lecithin were mixed thoroughly with a mixer. Egg white lecithin liquid crystal product) D: Kanuma Akado 8.11 mass%
E: Carbon black 0.025 mass%

(2) Mud-contaminated cloth The mud-contaminated cloth used was prepared by the manufacturing method described in paragraphs 0030 to 0038 of JP-A-10-204769 using a 10 cm × 10 cm cotton knitted fabric (100% cotton, purchased from Tanigami Shoten). It is a thing.

(3) Model sebum stain A
Model sebum soil A had the following composition. This composition has the same mass ratio as A in the artificial dirt.
-Composition of model sebum stain A:
Lauric acid 0.44 parts by mass, myristic acid 3.15 parts by mass, pentadecanoic acid 2.35 parts by mass, palmitic acid 6.31 parts by mass, heptadecanoic acid 0.44 parts by mass, stearic acid 1.6 parts by mass, oleic acid 7.91 parts by mass, 13.33 parts by mass of triolein, 2.22 parts by mass of n-hexadecyl palmitate, 6.66 parts by mass of squalene

<Evaluation of foaming property of cleaning composition>
3 L of water having a water temperature of 30 ° C. was charged into a model circular wash basin (cylindrical acrylic container having a bottom diameter (inner diameter) of 25 cm and a height of 15 cm). This water is ion-exchanged water with calcium chloride so that the German hardness is 5 ° dH (Ca / Mg = 7/3, mass ratio) or 10 ° dH (Ca / Mg = 7/3, mass ratio). Magnesium chloride was added, sodium hydrogen carbonate was added so that the alkalinity was 60 mg / L, and the pH was adjusted to 7 with hydrochloric acid. Next, 12 g of the powder detergent composition was added to water and dissolved. Three pieces of apparel for evaluation are poured into a cleaning solution and left for 30 minutes in a state of being completely immersed in the cleaning solution. After leaving, the artificially contaminated cloth is attached to one piece of evaluation clothing for 15 seconds and the mud-contaminated cloth is washed for 30 seconds (converted to one time in one reciprocation (about 1 second) while rubbing the cloths). Then, the clothes for evaluation were taken out and squeezed 10 cm above the washbasin so that the moisture content of the clothes for evaluation was about 100 to 140% with respect to the clothes for evaluation. Thereafter, after 5 minutes, the height of the foam from the liquid level was measured on the wall of the basin. On the basis of the foam height of the composition of the comparative example, it was determined that the foam was equivalent to or higher than the comparative example.

<Rinse evaluation of cleaning composition>
3 L of water having a water temperature of 30 ° C. was charged into a model circular wash basin (cylindrical acrylic container having a bottom diameter (inner diameter) of 25 cm and a height of 15 cm). This water is ion-exchanged water with calcium chloride so that the German hardness is 5 ° dH (Ca / Mg = 7/3, mass ratio) or 10 ° dH (Ca / Mg = 7/3, mass ratio). Magnesium chloride was added, sodium hydrogen carbonate was added so that the alkalinity was 60 mg / L, and the pH was adjusted to 7 with hydrochloric acid.
Three evaluation clothes squeezed last in the foaming property evaluation of the above-mentioned cleaning composition are put therein, and the evaluation clothes are rinsed and loosened in water. Hold it up from the bath and lift it up from the bath up to a height of about 5 cm above the basin until the entire apparel is removed, then return to the bath again. After such rinsing by vertical movement is repeated 10 times for each piece of clothing for evaluation, the water content of the clothing for evaluation is squeezed 10 cm above the basin so that the moisture content is about 100 to 140% of the underwear. The condition of the rinse water immediately after rinsing and dehydration of the sheets was observed, and the rinsing properties were evaluated according to the following criteria. In addition, the composition of a comparative example was evaluated first and the rank was calculated | required. Next, each Example was evaluated by the same method as the comparative example. The rank was smaller than the evaluation rank of the comparative example.

Rank 6: Bubbles with a bubble height of 1 cm or more remain on the entire liquid surface.
5: Bubbles remain on the entire liquid surface (less than 1 cm).
4: Foam (less than 1 cm) remains at about 1/2 of the liquid level, or the rinse water is so cloudy that the bottom of the basin cannot be confirmed.
3: Foam (less than 1 cm) remains at about 1/4 of the liquid level, or the rinsing water is cloudy enough to finally confirm the bottom of the basin.
2: Although fine bubbles remain on the liquid surface, the rinse water is so transparent that the bottom surface can be confirmed.
1: No bubbles remain on the liquid surface, and the rinse water is so transparent that the bottom surface can be confirmed.

[Cleaning method for cleaning liquid]
The bactericidal effect against Moraxella osloensis was evaluated. The fungus used was Moraxella osloensis 49 isolated from the worn clothing. For 10 ml of washing liquid in which the bacteria were pre-cultured in advance on an SCD-LP agar medium (manufactured by Nippon Pharmaceutical Co., Ltd.) and the detergent composition was completely dissolved so that the concentration of the detergent composition was 1 g / L. Then, 0.1 ml of the bacterial solution (initial number of bacteria 1.0 × 10 ⁹ CFU / ml) was inoculated. After contact with a shaking incubator at 25 ° C. and 150 rpm for 15 minutes, 0.5 ml of the inoculated washing solution is dropped into 4.5 ml of LP diluent (manufactured by Nippon Pharmaceutical Co., Ltd.), and the sterilizing component is not used. After the activation, the extract was serially diluted, mixed with SCD-LP agar medium (manufactured by Nippon Pharmaceutical Co., Ltd.), and then statically cultured at 37 ° C. for 1 day. The number of colonies obtained was counted, and the common logarithm of the number of viable bacteria treated with sterilized ion-exchanged water was subtracted from the common logarithm of the number of viable bacteria of each Example or Comparative Example (logarithmic value) Was defined as a bactericidal activity value (A).
In this evaluation, the bactericidal activity value (A) is set to pass 2.2 or more, and the higher the bactericidal activity value (A), the higher the antibacterial effect.

[Method for evaluating antibacterial effects of textile products]
(1) Preparation of test cloth Cotton plain woven cloth (cotton cloth 2003 purchased from Tanigami store) was used as a textile product for evaluation. The 6 cm × 6 cm cotton plain woven fabric was washed with each powder detergent composition to prepare a test fabric for use in an antibacterial test. For the preparation of the cleaning liquid, calcium chloride and magnesium chloride are added to ion-exchanged water sterilized by boiling at 100 ° C. for 120 minutes so that the German hardness is 10 dH ° (Ca / Mg = 7/3, mass ratio). Sodium hydrogen carbonate was added to 60 mg / L, and water adjusted to pH 7 with hydrochloric acid was used. This water and various powder detergent compositions were mixed to prepare a cleaning liquid having a powder detergent composition concentration of 1 g / L. Into a 1 L stainless beaker, 0.6 L of the cleaning solution was put, and 30 pieces of the above 6 cm × 6 cm cotton plain woven fabric were put. The bath ratio L / g, which is the ratio of the volume of the cleaning liquid (L) to the mass (g) of the plain cotton fabric, was 50. The washing operation was performed at 100 rpm for 10 minutes with a targotometer. Next, all the cleaning liquid in the stainless beaker was discarded, and the cotton plain woven fabric was squeezed by hand to a mass of about 250% by mass with respect to the dry mass of the cotton plain woven fabric before washing. Rinsing was performed twice for 3 minutes under the same conditions using water, dehydrated for 1 minute in a dewatering tank of a two-tank washing machine, and then naturally dried to obtain a test cloth. For rinsing, water having the same composition as the water used for preparing the cleaning liquid was used.

(2) Antibacterial effect The antibacterial effect against Moraxella osloensis was evaluated. The fungus used was Moraxella osloensis 49 isolated from the worn clothing. Bacteria are pre-cultured in advance on an SCD-LP agar medium (manufactured by Nippon Pharmaceutical Co., Ltd.), and 0.2 ml of bacterial solution (initial number of bacteria 1.0 × 10 ⁵ CFU / ml) is planted on 0.4 g of test cloth After culturing and performing static culture at 37 ° C. for 24 hours, 20 ml of LP diluent (manufactured by Nippon Pharmaceutical Co., Ltd.) was added and irradiated with ultrasonic waves for 10 minutes to extract the bacteria. The extract was serially diluted and mixed with SCD-LP agar medium (manufactured by Nippon Pharmaceutical Co., Ltd.), followed by stationary culture at 37 ° C. for 1 day. The non-washed cloth was also subjected to static culture for 1 day under the same conditions. The number of colonies obtained for each cloth was counted, and the common logarithm of the number of viable bacteria in the cloth that was not washed was subtracted from the common logarithm of the number of viable bacteria in each Example or Comparative Example (logarithmic value). ) Was defined as a bacteriostatic activity value (B).
In this evaluation, it is preferable that the bacteriostatic activity value (B) is 3.0 or more because a higher antibacterial effect is exhibited. For the same test cloth, the washing in (1) and the stationary culture in (2) were repeated until the bacteriostatic activity value (B) was 3.0 or more. The smaller the number of treatments until the bacteriostatic activity value (B) is 3.0 or more, the faster the antibacterial effect is expressed. In this evaluation, the bacteriostatic activity value (B) is preferably 3.0 or more by the third treatment.

[Evaluation of Detergency of Sebum Dirt Adhering to Textile Products]
<Artificial contamination cloth>
The artificially contaminated cloth was used as a textile product for evaluation.

<Cleaning conditions>
A powder detergent as described in Tables 1 to 3 in 1 liter of water having a hardness of 10 ° dH (Ca / Mg = 6/4, mass ratio), 0.2 g of the model sebum stain A, 0.3 ml of glacial acetic acid. Five sheets of the artificial soiled cloth were placed in a cleaning solution (30 ° C.) containing 3.5 g of the composition. Next, a 6 cm × 12 cm cotton / polyester broad blended dyeing cloth was introduced, and the bath ratio was adjusted to 20 L / g. Washing was performed with a tartometer at 180 rpm for 3 minutes.
The detergency was evaluated by visual observation of the degree of soiling before and after cleaning of the raw cloth before contamination and the artificially contaminated cloth. The dirt adhering to the test cloth before washing is washed with the powder detergent composition for textiles shown in Table 1, Table 2 and Table 3, and the remaining degree of dirt is reduced. It was possible level.

  The cleaning compositions for textiles of Examples 2-1 to 2-11 in Table 2 and Examples 3-1 to 3-17 in Table 3 have foaming and rinsing properties during cleaning, and Comparative Example 1 in Table 1. It was better than -1.

Claims (10)

The following (A) component is 10 mass% to 40 mass%, the following (B) component is 0.5 mass% to 5 mass%, the following (C) component is 20 mass% to 70 mass%, and the following ( D) containing ingredients,
(A1) component / [(a1) component + (a2) component], which is a mass ratio of the content of the component (a1) and the total content of the components (a1) and (a2), is 0. .85 or more and 1 or less,
Powder cleaning composition for textile products.
(A) Component: selected from the following (a1) component and optional (a2) component (a1) component: an anionic surfactant having a sulfonic acid group or a salt thereof, and an anionic surfactant having a sulfate ester salt One or more types of anionic surfactant (a2) Component: Nonionic surfactant having a polyoxyalkylene group (B) Component: Cationic surfactant represented by the following general formula (1)

[Wherein, R ¹ is an aliphatic hydrocarbon group having 8 to 16 carbon atoms, R ² is a hydrocarbon group having 1 to 10 carbon atoms, and R ³ and R ⁴ are each independently , A group selected from a hydrocarbon group having 1 to 3 carbon atoms and a hydroxyalkyl group having 1 to 3 carbon atoms, and X ⁻ is an anion. ]
(C) Component: one or more alkali agents selected from inorganic carbonates and inorganic hydrogen carbonates (D) Component: a polymer having a carboxylic acid group or a salt thereof and having a weight average molecular weight of 3000 or more   The component (a1) contains an anionic surfactant having a sulfonic acid group or a salt thereof, and the proportion of the anionic surfactant having a sulfonic acid group or a salt thereof in the component (a1) is 50% by mass or more. 2. The powder cleaning composition for textiles according to 1. The powder cleaning composition for textiles according to claim 1 or 2, wherein in the general formula (1), R ³ and R ⁴ are each independently a hydrocarbon group having 1 to 3 carbon atoms.   (C) Powder cleaning composition for textiles in any one of Claims 1-3 whose content of a component is 25 mass% or more and 60 mass% or less.   Component (D) is one or more polymers selected from polyacrylic acid having a weight average molecular weight of 3,000 to 500,000 or a salt thereof and a copolymer of acrylic acid and maleic acid having a weight average molecular weight of 3,000 to 500,000 or a salt or a salt thereof. The powder cleaning composition for textiles according to any one of claims 1 to 4.   (E) As a component, 5 mass% or more and 30 mass% or less of 1 or more types of metal ion scavenger chosen from a zeolite, a tripolyphosphate, and an alkali metal silicate are contained in any one of Claims 1-5. Powder cleaning composition for textile products.   The powder cleaning composition for textiles according to claim 6, comprising two or more metal ion scavengers selected from zeolite, tripolyphosphate and alkali metal silicate as component (E).   The powder cleaning composition for textiles according to any one of claims 1 to 7, which is for hand washing.   A textile product, wherein the textile product is washed with a washing liquid obtained by mixing the powder cleaning composition for textiles according to any one of claims 1 to 8 and water having a German hardness of 1 ° dH to 50 ° dH. Cleaning method.   The method for washing a textile product according to claim 9, wherein the textile product is washed after 10 minutes or more and 60 minutes or less have elapsed after the cleaning liquid and the textile product are first brought into contact with each other.