JP6523435B2 - Liquid cleaning agents for textiles - Google Patents

Description

The present invention relates to a liquid cleaner containing an antimicrobial agent.
Priority is claimed on Japanese Patent Application No. 2015-076972, filed Apr. 3, 2015, the content of which is incorporated herein by reference.

  Liquid detergents are often used as household laundry detergents. Garment detergents are required to have a cleaning power against various stains attached to clothes etc. In addition, it is considered effective to apply the liquid detergent directly to the soiled area when it is difficult for the dirt to be removed from the object to be washed, and that the application cleaning power at this time is also required for the liquid detergent .

  In recent years, liquid detergents for clothing have not only the removal of stains attached to objects to be washed (cleansing power) but also the removal of unpleasant odors generated from the objects due to the increase in cleanliness. There is a need to prevent the generation of unpleasant odors from substances to be washed. The generation of the unpleasant odor from the material to be washed is mainly due to the growth of microorganisms attached to the fibers during drying and storage of the material to be washed.

Heretofore, there have been proposed cleaning agents containing a cationic compound having a bactericidal effect to reduce bacteria or an antibacterial effect to suppress bacterial growth. For example, in Patent Document 1, a specific nonionic surfactant is selected from the group consisting of two, a quaternary ammonium compound, a tertiary amine compound, a secondary amine compound, a dimethyldiallyl ammonium polymer and a biguanide compound as a germicide. There is disclosed a liquid detergent containing one or more kinds or a water-soluble silver salt in a specific mixing ratio.
Patent Document 2 discloses a liquid detergent containing an alcohol alkoxylate as an nonionic surfactant and an antibacterial agent. Water-insoluble antibacterial compounds having a specific molecular weight and melting point as antibacterial agents and having no quaternary ammonium group (eg triclosan, bis- (2-pyridylthio-1-oxide) zinc, 2,4,5,6 -Tetrachloroisophthalonitrile, trichlorocarbanilide, 8-oxyquinoline, dehydroacetic acid, benzoates, chlorocresols, chlorothymol, chlorophen, dichlorophen, bromochlorophen, hexachlorophen, dichlorohydroxydiphenyl ether, monochloro- Hydroxydiphenyl ether); water-soluble quaternary ammonium type antibacterial compound having at least one alkyl group having 8 to 16 carbon atoms; 2- (4-thiocyanomethylthio) benzimidazole, polylysine, polyhexamethylene biganilide and glucone One or more selected from the group consisting of chlorhexidine is described.

JP 2014-28942 A Japanese Patent Laid-Open No. 2001-200300

  When the present inventors examined a liquid detergent for textiles containing various antibacterial agents, the liquid detergent containing a phenolic antibacterial agent such as triclosan is not sufficiently stable against light, It was found that coloration may occur when exposed to light. Specifically, it may be colored under an fluorescent light or under sunlight to discolor from orange to red.

  The present invention was made in view of the above circumstances, and it is an object of the present invention to provide a liquid cleaner for textiles, which is excellent in the cleaning property and the antibacterial property and in which the coloring when exposed to light is suppressed. Do.

The present invention has the following configuration.
[1] Component (A): A phenolic detergent, (B): an inorganic reducing agent, and (C): a surfactant. A liquid detergent for textile products.
[2] (D) component: The liquid detergent for textile products of [1] which contains protease.
[3] Component (E): at least one member selected from the group consisting of glyceryl ethers having a hydrocarbon group of 4 to 12 carbon atoms, and fatty acid esters having a fatty acid residue of 4 to 10 carbon atoms, The liquid detergent for textiles of [1] or [2].
[4] The content of the component (A) is 0.01 to 2% by mass, the content of the component (B) is 0.001 to 3% by mass, based on the total mass of the liquid detergent. The liquid detergent for textile products of any of [1]-[3] whose content of a ingredient is 8-30 mass%.
[5] The mass ratio of the content of the component (A) to the content of the component (B) in the liquid detergent, (A) / (B) is 0.005 to 60, [1] to [1] 3) Liquid detergent for textiles of any of the above.
[6] The component [C], wherein the component (C) contains an anionic surfactant, and the total amount of the anionic surfactant is 40 to 100% by mass with respect to the total amount of the component (C) Liquid cleaner for any textile product.
[7] The component (C) contains an anionic surfactant and a nonionic surfactant, and the total amount of the anionic surfactant and the nonionic surfactant is 80 to 100% by mass with respect to the total amount of the component (C) A liquid detergent for textile products according to any of [1] to [3].
[8] The liquid detergent for textile products according to [7], wherein the total amount of the anionic surfactant is 50 to 97% by mass based on the total amount of the anionic surfactant and the nonionic surfactant.
[9] A liquid detergent for textile products according to any of [1] to [3], which has a viscosity of 50 to 2500 mPa · s at 30 ° C.

  According to the present invention, a liquid detergent for textiles is obtained which has good detergency and antibacterial properties, and suppresses coloration when exposed to light.

The liquid detergent for textile products of the present invention (hereinafter, also simply referred to as "liquid detergent") is a liquid composition containing the (A) component, the (B) component and the (C) component.
In the present invention, the antibacterial property means the effect of suppressing the growth of bacteria, and the bactericidal property means the effect of reducing the bacteria.
<(A) component>
Component (A) is a phenolic antimicrobial agent. Phenolic means that one or more of the hydrogen atoms in the aromatic hydrocarbon nucleus have a structure substituted with a hydroxy group. The component (A) is preferably a compound having a structure in which one or two benzene nuclei are contained, and at least one hydrogen atom of the benzene nuclei is substituted with a hydroxy group.
As the component (A), phenol derivatives or diphenyl compounds known as antibacterial agents can be suitably used. Specific examples of the phenol derivative include 4-isopropyl-3-methylphenol and parachlorometaxylenol. As a specific example of the said diphenyl compound, the 2-hydroxy diphenyl ether compound represented by following formula (I) is mentioned.
The component (A) is a component that imparts antibacterial properties to textiles such as clothes after washing. Phenolic antimicrobial agents can exhibit antimicrobial properties without impairing the detergency of the anionic surfactant even when coexisting with the anionic surfactant in the liquid detergent.
As the component (A), one type may be used alone, or two or more types may be used in combination as appropriate.

It is preferable that the component (A) contains a 2-hydroxydiphenyl ether compound (hereinafter referred to as a compound (I)) represented by the following formula (I). The compound (I) is particularly preferred in that the effect of the application of the present invention is large, since coloring tends to occur particularly when exposed to light.
In formula (I), Y is a chlorine atom or a bromine atom, Z is -SO ₂ H, -NO ₂ or an alkyl group having 1 to 4 carbon atoms, and a and b are each independently 0 or 1 to It is an integer of 3, c is 0 or 1, m is 0 or 1, n is 0 or 1. The sum of b, c and m is 4 or less.
A preferred embodiment is that Y is chlorine or bromine, m is 0, n is 0 or 1, a is 0, 1 or 2, b is 0, 1 or 2, and c Is a compound in which 0 is 0.

As a more preferable example of the compound (I), monochlorohydroxydiphenyl ether in which Y is chlorine atom, one of a or b is 1 and the other is 0, c is 0, m is 0, n is 0; Y is Dichlorohydroxydiphenyl ether in which a is 1, a is 1, b is 1, c is 0, m is 0 and n is 0; Y is chlorine, one of a or b is 1 and the other is 2, c is 0 , Trichlorohydroxydiphenyl ether in which m is 0 and n is 0;
Particularly preferred specific examples include 2,4,4'-trichloro-2'-hydroxydiphenyl ether (common name: triclosan) and 4,4'-dichloro-2'-hydroxydiphenyl ether.
As the compound (I), one type may be used alone, or two or more types may be used in combination as appropriate.
60 mass% or more is preferable, as for the total amount of compound (I) with respect to the total mass of (A) component, 80 mass% or more is more preferable, and 90 mass% or more is further more preferable. 100 mass% may be sufficient.

  The content of the component (A) in the liquid detergent is preferably 0.01 to 2% by mass, more preferably 0.05 to 1% by mass, with respect to the total mass of the liquid detergent, and 0.06 to 0 .5 wt% is more preferred. When the content of the component (A) is at least the lower limit value of the above range, a good antibacterial effect is easily obtained. It is easy to acquire favorable storage stability of a liquid detergent as it is below the upper limit of the said range.

<(B) component>
Component (B) is an inorganic reducing agent. In the present specification, a reducing agent means an agent that has the function of reducing a substance and that oxidizes itself. By inorganic reducing agent is meant a reducing agent that does not contain carbon atoms.
By blending the component (B) with the liquid detergent containing the component (A), it is possible to suppress coloring when the liquid detergent is exposed to light. The reason is not clear, but when the liquid detergent is exposed to light, the reaction occurs between the phenyl groups in the component (A), but the reaction can be suppressed by the inorganic reducing agent, And, it is considered that the inorganic reducing agent does not color even if it is oxidized.
As the component (B), one type may be used alone, or two or more types may be used in combination as appropriate.

It is preferable that the component (B) contains one or more selected from the group consisting of sulfite, pyrosulfite, and bisulfite.
As sulfite, sodium sulfite and potassium sulfite are preferable.
As the pyrosulfite, sodium pyrosulfite and potassium pyrosulfite are preferable.
As bisulfite, sodium bisulfite and potassium bisulfite are preferable.
Among these, sodium sulfite is more preferable in view of storage stability.
70 mass% or more is preferable, 80 mass% or more is more preferable, and 90 mass% or more is further more preferable with respect to the total mass of (B) component. 100 mass% may be sufficient.

The content of the component (B) in the liquid detergent is preferably 0.001 to 3% by mass, more preferably 0.02 to 1% by mass, based on the total mass of the liquid detergent. .5 wt% is more preferred. When the content of the component (B) is at least the lower limit value of the above range, the effect of suppressing the coloration by light is easily obtained sufficiently. It is easy to acquire favorable storage stability of a liquid detergent as it is below the upper limit of the said range.
The mass ratio of (A) / (B), which is the mass ratio of the content of component (A) to the content of component (B) in the liquid detergent, is not particularly limited, but is preferably 0.005 to 60, .03 to 10 are more preferable, and 0.4 to 7 are particularly preferable. When it is at least the lower limit value of the above range, a sufficient antibacterial effect is easily obtained, and when it is at the upper limit value or less, the effect of suppressing coloring by light is easily obtained.

<(C) component>
The component (C) is a surfactant. The component (C) is a cleaning component, and a known surfactant can be used in the liquid detergent. For example, an anionic surfactant, a nonionic surfactant, a cationic surfactant, an amphoteric surfactant, and a semipolar surfactant can be blended in combination of one or more kinds.
The total amount of the component (C) in the liquid detergent is preferably 8 to 30% by mass, more preferably 10 to 28% by mass, and still more preferably 12 to 25% by mass, based on the total mass of the liquid detergent. It is. When the total amount of the component (C) is at least the lower limit value of the above range, a good cleaning effect can be easily obtained. Below the upper limit value, a sufficient cleaning effect can be obtained while suppressing an increase in cost.

The component (C) preferably contains an anionic surfactant in terms of anti-redeposition properties and viscosity.
In this case, the total amount of the anionic surfactant is preferably 40% by mass or more, more preferably 50% by mass or more, and still more preferably 70% by mass or more based on the total mass of the component (C). The upper limit may be 100% by mass, and is preferably 95% by mass or less, more preferably 93% by mass or less, in terms of balance with other surfactants.
40-100 mass% is preferable, as for the total amount of anionic surfactant with respect to the total mass of (C) component, 50-95 mass% is more preferable, and 70-93 mass% is especially preferable.

From the viewpoint of stability, it is preferred that the component (C) contains an anionic surfactant and a nonionic surfactant.
In this case, the total amount of the anionic surfactant and the nonionic surfactant is preferably 80% by mass or more, more preferably 85% by mass or more, still more preferably 90% by mass or more, based on the total mass of the component (C). 100 mass% may be sufficient.
Moreover, 50 mass% or more is preferable, as for the ratio of the sum total of anionic surfactant with respect to the total mass of anionic surfactant and nonionic surfactant, 50-97 mass% is more preferable, and 60-97 mass% is further Preferably, 65 to 95% by mass is particularly preferred. When the proportion of the anionic surfactant is at least the lower limit value of the above range, the recontamination prevention property is less likely to be reduced, and when it is less than the upper limit value, the storage stability at low temperature conditions is less likely to be reduced.

[Anionic surfactant]
Examples of anionic surfactants include the following (1) to (12).
(1) Methyl, ethyl or propyl ester salts of saturated or unsaturated α-sulfo fatty acids having 8 to 20 carbon atoms.
(2) Linear or branched alkyl benzene sulfonate (LAS or ABS) having an alkyl group having 8 to 18 carbon atoms.
(3) C10-C20 alkane sulfonate.
(4) C10-C20 alpha-olefin sulfonate (AOS).
(5) C10-C20 alkyl sulfate or alkenyl sulfate (AS).
(6) Any of alkylene oxides having 2 to 4 carbon atoms, or ethylene oxide (EO) and propylene oxide (PO) (molar ratio EO / PO = 0.1 / 9.9 to 9.9 / 0.1) And alkyl (or alkenyl) ether sulfates (AES) having a linear or branched alkyl (or alkenyl) group having 10 to 20 carbon atoms and having an average of 0.5 to 10 moles added thereto.
(7) Any of alkylene oxides having 2 to 4 carbon atoms, or ethylene oxide and propylene oxide (molar ratio EO / PO = 0.1 / 9.9 to 9.9 / 0.1) in an average of 3 to 30 moles The alkyl (or alkenyl) phenyl ether sulfate which has the C10-C20 linear or branched alkyl (or alkenyl) group which was added.
(8) Any of alkylene oxides having 2 to 4 carbon atoms, or ethylene oxide and propylene oxide (molar ratio EO / PO = 0.1 / 9.9 to 9.9 / 0.1), on average 0.5 to 0.5 Alkyl (or alkenyl) ether carboxylic acid salt which has C10-C20 linear or branched alkyl (or alkenyl) group which 10 mol was added.
(9) alkyl polyhydric alcohol ether sulfate such as alkyl glyceryl ether sulfonic acid having 10 to 20 carbon atoms.
(10) Long chain monoalkyl phosphate, long chain dialkyl phosphate or long chain sesquialkyl phosphate.
(11) Polyoxyethylene monoalkyl, dialkyl or sesquialkyl phosphate.
(12) Soap. Higher fatty acid salts having an average carbon number of 10 to 20 (preferably 12 to 18 carbons).

Anionic surfactants other than those exemplified above may be used. For example, carboxylic acid type anionic surfactants such as alkyl ether carboxylates, polyoxyalkylene ether carboxylates, alkylamide ether carboxylates or alkenylamide ether carboxylates, and acylamino carboxylates; alkyl phosphoric acid ester salts And phosphate ester type anionic surfactants such as polyoxyalkylene alkyl phosphate ester salt, polyoxyalkylene alkyl phenyl phosphate ester salt, glycerin fatty acid ester monophosphate ester salt, and the like.
Examples of the salt form of the anionic surfactant include alkali metal salts such as sodium salt and potassium salt; alkaline earth metal salts such as magnesium salt; alkanolamine salts such as monoethanolamine salt and diethanolamine salt; ammonium salt etc. Be Among them, alkali metal salts are preferred.

One type of anionic surfactant may be used alone, or two or more types may be used in combination as appropriate.
Among the above, as the anionic surfactant, those containing at least one selected from the group consisting of (1), (2) and (6) above are preferable, because a higher cleaning effect is easily obtained. , (6), or those containing (1) and (2) are more preferable.
Specifically as the anionic surfactant, only the above (6), the combination of (1) and (6), the combination of (2) and (6), the combination of (1) and (2), A combination of (1), (2) and (6) may be mentioned. Among these, only (6), a combination of (1) and (6), or a combination of (1) and (2) is particularly preferable because a higher cleaning effect is easily obtained.
In the combination of (1) and (6), the mass ratio of the two is preferably (1) :( 6) = 1: 9 to 5: 5, and more preferably 2: 8 to 5: 5.
In the combination of (1) and (2), the mass ratio of the two is preferably (1) :( 2) = 1: 9 to 5: 5, and more preferably 1.5: 8.5 to 5: 5. .
In any combination, if the mass ratio of the two is within the above-mentioned preferred range, a good cleaning effect is further enhanced.

[Nonionic surfactant]
Known nonionic surfactants can be used in liquid detergents. The nonionic surfactants may be used alone or in combination of two or more.
As the nonionic surfactant, a linear or branched alcohol alkoxylate (hereinafter also referred to as a component (II)) represented by the following formula (II) is preferable.

In formula (II), R ¹ is a linear or branched hydrocarbon group having 8 to 18 carbon atoms, AO is an oxyalkylene group having 2 to 4 carbon atoms; x is an average of oxyalkylene groups It represents the number of repetitions and is a number from 0 to 30.

In formula (II), R ¹ may be a linear or branched alkyl group, or a linear or branched alkenyl group. The carbon number of R ¹ is 8 to 18, preferably 10 to 16 and more preferably 10 to 14 from the viewpoint of improving the detergency.
AO constituting-(AO) x- may be any one of an oxyethylene group, an oxypropylene group or an oxybutylene group, and two or more of these may be mixed. Among these, an oxyethylene group and / or an oxypropylene group is preferable, and an oxyethylene group is more preferable. When 2 or more types of oxyethylene group, oxypropylene group or oxybutylene group are mixed, these may be mixed at random or may be mixed in block.
In the formula (II), x is a number of 0 to 30, and from the viewpoint of washability and storage stability, x is preferably a number of 3 to 15, and more preferably a number of 3 to 10.
Note that x represents the "average" number of repetitions of the oxyalkylene group. That is, the component (II) is an assembly of molecules having different numbers of repeating oxyalkylene groups. It may also be a collection of different R ¹ molecules.

<(D) component>
Component (D) is a protease. The component (D) decomposes protein stain, which is a binder of stains coming out of the body, and thus contributes to the enhancement of detergency such as collar and sleeve stains and suppression of recontamination.
A commercially available preparation (protease preparation) can be used as the component (D).
Specific examples of the protease preparation include: (1) Savinase 16L, (2) Savinase Ultra 16L, (3) Savinase Ultra 16 XL, (4) Savinase Evity 16L, (5) Everlase 16L, which is a serine protease preparation manufactured by Novozymes. 6) Everlase Ultra 16 L, (7) Esperase 8 L, (8) Alcalase 2.5 L, (9) Alcalase Ultra 2.5 L, (10) LIquanase 2.5 L, (11) Liquanase Ultra 2.5 L, (12) Liquanase Ultra 2.5 XL, (13) Coronase 48 L (all trade names); (14) Purafect L from Genencor, (15) Purafect OX, (16) Properase L (all trade names); and the like.
The above (5) Everlase 16L is particularly preferably TypeEX.

Among the above, (1) to (6) and (8) to (13) are preferable as the component (D), and (1), (4), (5), (8), and (13) are particularly preferable. .
The component (D) may be used alone or in combination of two or more.
The compounding amount of the component (D) in the liquid detergent is preferably 0.01 to 3.0% by mass, and 0.03 to 2.0% by mass as the mass of the preparation based on the total mass of the liquid detergent. More preferably, 0.1 to 1.5% by mass is more preferable. When the compounding amount of the component (D) is at least the lower limit value of the above range, the cleaning effect of the protein stain by the component (D) is favorably obtained, and when it is at the upper limit value or less, the cost increase is suppressed (D) A sufficient blending effect of the components can be obtained. In addition, the generation of the substrate odor can be well suppressed.
In the present specification, the compounding amount of the component (D) in the liquid detergent is a compounding amount as a preparation. The compounding amount can be determined by a general method, for example, by back-calculating the amount of raw material used or the amount of enzyme protein in the liquid detergent.

<(E) component>
The component (E) is a glyceryl ether having a hydrocarbon group having 4 to 12 carbon atoms (hereinafter referred to as “component (E1)”), and a fatty acid ester having a fatty acid residue having 4 to 10 carbon atoms (hereinafter “(E2) And at least one member selected from the group consisting of Glyceryl ether is a compound in which a hydroxyl group of glycerin and an alcohol are ether-linked, and has a hydrocarbon group derived from alcohol.
By combining the component (A) and the component (C) with the component (E), the bactericidal effect is enhanced together with the cleaning effect.

[(E1) component: glyceryl ether having a hydrocarbon group of 4 to 12 carbon atoms]
The component (E1) may be one having one hydrocarbon group having 4 to 12 carbon atoms, one having two of the hydrocarbon groups, or one having three of the hydrocarbon groups, among them from the viewpoint of the bactericidal effect And those having one such hydrocarbon group are preferred. Those having one or two hydrocarbon groups may have two or one hydrocarbon group or the like other than a hydrocarbon group having 4 to 12 carbon atoms.
8-12 are preferable and, as for carbon number of a C4-C12 hydrocarbon group, 8-10 are more preferable.
The hydrocarbon group having 4 to 12 carbon atoms may be linear or branched, and may be a saturated hydrocarbon group or an unsaturated hydrocarbon group. Among them, linear or branched saturated hydrocarbon groups (alkyl groups) are preferable. Examples of such an alkyl group include n-octyl group, 2-ethylhexyl group, n-nonyl group, n-decyl group, isodecyl group, n-undecyl group and n-dodecyl group. Among these, a hydrocarbon group having 4 to 12 carbon atoms is preferably a branched alkyl group, and specific examples thereof include a 2-ethylhexyl group and an isodecyl group.
Preferred examples of the component (E1) include 2-ethylhexyl glyceryl ether and isodecyl glyceryl ether. Among them, 2-ethylhexyl glyceryl ether is particularly preferable because the bactericidal effect is further enhanced.

[(E2) component: fatty acid ester having fatty acid residue having 4 to 10 carbon atoms]
The component (E2) may be one having one fatty acid residue having 4 to 10 carbon atoms, or one having two or more of the fatty acid residues, and from the viewpoint of the bactericidal effect, among others, the fatty acid residues 1 to 3 Are preferred, and those having one or two fatty acid residues are more preferred.
The carbon number of the fatty acid residue having 4 to 10 carbon atoms is preferably 6 to 10. When the carbon number of the fatty acid residue is equal to or more than the above-mentioned preferable lower limit, the washing effect is further enhanced. On the other hand, a sterilizing effect is heightened more as it is below the said preferable upper limit.

Examples of the component (E2) include compounds which are formed by condensation by separating water from fatty acids having 4 to 10 carbon atoms and alcohols.
The fatty acid having 4 to 10 carbon atoms may have one carboxy group or two or more carboxy groups, and among them, one having one to three carboxy groups is preferable from the viewpoint of the bactericidal effect, Those having one or two carboxy groups are more preferred.
The fatty acid having 4 to 10 carbon atoms may be linear or branched, and may be saturated fatty acid or unsaturated fatty acid. Among them, linear or branched saturated fatty acids are preferable from the viewpoint of bactericidal activity. Examples of such saturated fatty acids include caproic acid, caprylic acid, 2-ethylhexanoic acid, capric acid, lauric acid, adipic acid, suberic acid, sebacic acid and the like.
The alcohol may be a monohydric alcohol or a polyhydric alcohol. As monohydric alcohol here, ethanol, isopropanol, a cetanol, or the mixture of 2 or more types of these is mentioned, for example. Moreover, you may use denatured alcohol for monohydric alcohol. Examples of polyhydric alcohols here include propylene glycol, glycerin, ethylene glycol, methylene glycol and the like.

  Preferred examples of the component (E2) include cetyl 2-ethylhexanoate, propylene glycol monocaprate, propylene glycol dicaprate, propylene glycol caprylate, glyceryl 2-ethylhexanoate, trimethylolpropane trioctanoate, diisopropyl adipate, sebacic acid Diethyl, diisopropyl sebacate and the like can be mentioned. Among these, propylene glycol monocaprate and diisopropyl adipate are preferable because the bactericidal effect is further enhanced.

As the component (E), one type may be used alone, or two or more types may be used in combination as appropriate.
Among the above components, the component (E) is selected from the group consisting of propylene glycol monocaprate, diisopropyl adipate and 2-ethylhexyl glyceryl ether, since the bactericidal effect is particularly enhanced by the combination with the component (A). At least one is preferred, and at least one selected from the group consisting of propylene glycol monocaprate and diisopropyl adipate is more preferred.
The content of the component (E) in the liquid detergent is preferably 1 to 10% by mass, more preferably 1.5 to 7% by mass, and still more preferably 4 to 7% by mass, based on the total mass of the liquid detergent. It is. When the content of the component (E) is at least the lower limit of the above range, the bactericidal effect is more easily enhanced, and when it is at or below the upper limit of the above range, the liquid stability of the liquid detergent is further improved.

<Water-soluble inorganic salt>
The liquid detergent of the present invention may contain a water-soluble inorganic salt other than the component (B). Known water soluble inorganic salts can be used in liquid detergents.
As used herein, the term "water-soluble inorganic salt" refers to an inorganic salt belonging to "very soluble" to "very soluble" in the Japanese Pharmacopoeia. If the amount of water required to dissolve 1 g at 20 ° C. is less than 30 mL, it can be said to be a water-soluble inorganic salt.
The water soluble inorganic salt contributes to the thickening of the liquid detergent. The water-soluble inorganic salts may be used alone or in combination of two or more.

Specific examples of the water-soluble inorganic salt include sodium sulfate, sodium chloride, potassium chloride, sodium carbonate, calcium chloride, calcium sulfate, magnesium sulfate and the like. Among them, it is preferable to use one or both of sodium sulfate and magnesium sulfate from the viewpoint of the thickening effect of the liquid detergent. It is also preferable to use one or both of sodium sulfate and magnesium sulfate in combination with water-soluble inorganic salts other than these.
When the liquid detergent contains a water-soluble inorganic salt other than the component (B), the total content of the water-soluble inorganic salt other than the component (B) and the component (B) with respect to the total mass of the liquid detergent It is preferable that it is 0.1-10 mass%, More preferably, it is 0.5-6 mass%. When the total amount of the water-soluble inorganic salt containing the component (B) is at least the lower limit value of the above range, the thickening effect of the liquid detergent is easily obtained sufficiently, and when it is at the upper limit value or less, It is easy to suppress the decrease in fluidity and solubility due to the increase in viscosity.

<Solvent>
The liquid detergent of the present invention preferably contains water as a solvent from the viewpoint of ease of handling at the time of production, solubility in water at the time of use, and the like. The content of water in the liquid detergent is not particularly limited, but is preferably 50 to 99% by mass, more preferably 60 to 98% by mass, and still more preferably 70 to 97% by mass, based on the total mass of the liquid detergent. .
In addition to water, a water-miscible organic solvent may be used as the solvent.
The term "water-miscible organic solvent" refers to an organic solvent which is dissolved in at least 50 g of ion-exchanged water at 25 ° C. The water-miscible organic solvent may be any solvent which becomes a uniform solution when mixed with water, and among them, monohydric alcohols having 2 to 4 carbon atoms, polyhydric alcohols having 2 to 4 carbon atoms, glycol Ether etc. are mentioned.
When a water miscible organic solvent is used, the water miscible organic solvent is preferably 0.1 to 10% by mass, and more preferably 0.3 to 8% by mass, with respect to the total mass of water and the water miscible organic solvent. 0.5 to 6% by mass is more preferable.
In the liquid detergent of the present invention, the total amount of the components (A) to (C) and the solvent does not exceed 100% by mass.
When the liquid detergent of the present invention contains the component (D), the total amount of the components (A) to (D) and the solvent does not exceed 100% by mass.
When the liquid detergent of the present invention contains the component (E), the total amount of the components (A) to (C), the component (E) and the solvent does not exceed 100% by mass.
When the liquid detergent of the present invention comprises the (D) component and the (E) component, the total amount of the (A) to (E) components and the solvent does not exceed 100% by mass.

<Other ingredients>
The liquid detergent according to the present invention may contain other components in addition to the components (A) to (E), the water-soluble inorganic salt other than the component (B), and the solvent described above. As the other components, known components in liquid detergents can be appropriately used.
As other components, for example, perfumes, pH adjusters, enzymes other than the component (D), antifoaming agents, preservatives, dyes and the like can be mentioned.

Examples of pH adjusters include acidic compounds such as sulfuric acid, hydrochloric acid and citric acid; alkanolamines such as monoethanolamine, diethanolamine and triethanolamine, and alkaline compounds such as sodium hydroxide and potassium hydroxide. These pH adjusters may be used alone or in combination of two or more.
In particular, alkanolamines are suitable for adjusting the pH of the liquid detergent to the following preferred range.

According to the findings of the present inventors et al., The higher the pH of the liquid detergent, in particular, the more easily it is colored by light. Therefore, the higher the pH of the liquid detergent, the greater the effect of applying the present invention.
The pH at 30 ° C. of the liquid detergent of the present invention is preferably 7 or more, more preferably 7.5 or more, still more preferably 8 or more, and particularly preferably 8.2 or more. The upper limit of the pH is preferably 10 or less, more preferably 9.5 or less, and still more preferably 9.3 or less.
The pH at 30 ° C of the liquid detergent of the present invention is preferably 7 to 10, more preferably 7.5 to 9.5, still more preferably 8 to 9.3, and particularly preferably 8.2 to 9.3.
In particular, when the liquid detergent contains the component (D), when the pH of the liquid detergent is in the above range, good enzyme activity is easily obtained, and the cleaning effect of protein stains tends to be high.
The value of pH in the present specification is a value at 30 ° C. Specifically, the sample is adjusted to 30 ° C., and a value measured by a pH meter (for example, using product name “HM-30G” manufactured by Toa DKK Co., Ltd.) or the like is shown.

50-2500 mPa * s is preferable and, as for the viscosity in 30 degreeC of the liquid cleaning agent of this invention, 200-2000 mPa * s is more preferable.
If the viscosity of the liquid detergent is within the above-mentioned preferable range, it becomes easy to measure the liquid detergent with a measuring cap or the like. In addition, when the liquid detergent is directly applied to the object to be washed for cleaning, the liquid detergent can be easily applied to the object to be washed.
The viscosity at 30 ° C. of the liquid detergent in the present specification is a value obtained by adjusting the sample to 30 ° C. and using a B-type viscometer (manufactured by TOKIMEC). The measurement condition is to measure the viscosity after rotating for 30 seconds at a rotational speed of 60 rpm.
If the viscosity is 1000 mPa · s or less, the rotor No. In the case where the viscosity is more than 1000 mPa · s and less than 4000 mPa · s, rotor No. 2 is used. Use 3).
The viscosity of the liquid detergent can be adjusted, for example, by the blending amount of one or both of an anionic surfactant and a water-soluble inorganic salt other than the component (B).

  The liquid detergent of the present invention is prepared, for example, by dissolving the above components (A), (B) and (C) and optional components other than these in a solvent and using a pH adjuster. It can manufacture by adjusting to predetermined pH.

  The liquid detergent of the present invention can be contained in a container generally used. As such a container, for example, a nozzle-type container or a stopper-type container provided with a measuring cap, a squeeze container or a pump container provided with an automatic measuring mechanism or a simple measuring mechanism, a trigger container or a squeeze for spraying or applying liquid A container, an application container having an application surface for applying a liquid, a refill container (a pouch, a thin bottle, a replacement bottle, etc.) and the like can be mentioned.

The liquid detergent of the present invention can be used in any of household, commercial and industrial applications. Among them, it can be suitably used for household use, and is particularly suitable as a liquid detergent for textile products. A textile product means a product made of fiber.
The type of the object to be cleaned (the item to be washed) may be the same as those to be cleaned by household laundry, and examples thereof include textiles such as clothes, cloths, towels, sheets and curtains, etc. Ru.

Preferred is a method of washing textiles with water comprising the liquid detergent of the present invention.
The method of using the liquid detergent for textiles may be, for example, a method of putting the liquid detergent into the water together with the article to be washed, into the aqueous solution of the detergent prepared by previously dissolving the liquid detergent in water. The method etc. which immerse a wash are mentioned. Alternatively, the liquid detergent may be applied directly to the object to be washed and left for a certain period of time, and then normal washing may be performed (application washing).

EXAMPLES The present invention will be described in more detail using the following examples, but the present invention is not limited to these examples. In the present example, “%” indicates “% by mass” unless otherwise noted.
The raw materials used in this example are as follows.

<(A) component>
A-1: 4,4'-dichloro-2'-hydroxydiphenyl ether, trade name "Tinosan HP100", manufactured by BASF.
<(B) component>
B-1: sodium sulfite.
<(C) component>
C-1: Anionic surfactant, α-sulfo fatty acid methyl ester Na salt (MES), trade name “MIZULAN FL-80”, manufactured by Lion Eco Chemicals Co., Ltd.
C-2: Anionic surfactant, sodium salt of polyoxyethylene alkyl ether sulfate (average addition mole number of ethylene oxide: 2) (AES (2)), trade name "EMAL 270N", manufactured by Kao Corporation.
C-3: nonionic surfactant, polyoxyethylene (average EO added mole number 9) alkyl (12, 14 carbon atoms) ether, trade name "Ecolat 24-9", manufactured by Ecogreen.
C-4: nonionic surfactant, polyoxyethylene (average EO added mole number 5) alkyl (12, 14 carbon atoms) ether, trade name "Ecolat 24-5", manufactured by Ecogreen.
<(D) component>
D-1: Everlase 16L TypeEX (trade name, manufactured by Novozymes).
D-2: Savinase Evity 16L (trade name, manufactured by Novozymes).
<(E) component>
E-1: Propylene glycol monocaprate, trade name "NIKKOL Sefsol-218", manufactured by Nikko Chemicals Co., Ltd.
E-2: Diisopropyl adipate, trade name "NIKKOL DID", manufactured by Nikko Chemicals Co., Ltd.
E-3: 2-ethylhexyl glyceryl ether, trade name "SENSIVA ST50JP", manufactured by Nikko Chemicals Co., Ltd.

<Water-soluble inorganic salt>
Sodium sulfate <Other ingredients>
Flavor, pH adjuster (monoethanolamine, sulfuric acid), purified water.
<Component of Comparative Example>
Comparative component (1) of (A): benzalkonium chloride (cationic surfactant), trade name "Arcard CB-50", manufactured by Lion Specialty Chemicals.
Comparative component (2) of (B): dibutyl hydroxytoluene (BHT).

[Production of liquid detergent]
Tables 1 to 4 show the composition (blended components, content (mass%)) of the liquid detergent of each example. In the table, the contents of the blending components other than the component (D) indicate the net equivalent. The content of the component (D) is indicated by the mass of the preparation.
The “balance” indicating the content of purified water means the balance added so that the total blending amount (mass%) of all the blending components contained in the liquid detergent is 100 mass%.
In the table, “(A) / (B) ratio” indicates the ratio (mass ratio) of the component (A) to the component (B) contained in the liquid detergent.
In the table, “anion total / (C) component” indicates the ratio (unit: mass%) of the total of anionic surfactants in 100 mass% of the total of (C) components.
Examples 1-19, 30-34 are Examples, and Examples 20-25 are comparative examples.

(Examples 1-25, 30-34)
According to the composition shown in Tables 1 to 4, the component (A) (or the comparative component (1) of the component (A)), the component (B) (or the comparative component (2) of the component (B)), and the component (C) The components (D), optional components (except purified water), and components (E) in Examples 30 to 33 were further added to the purified water and mixed to obtain a liquid detergent. The pH was adjusted to be 9.2 at 30 ° C.
Also, in Examples 1-17, 19-25, and 30-34, which contain anionic surfactants, sodium sulfate was blended to adjust the viscosity. In each of these examples, the viscosity at 30 ° C. of the liquid detergent was in the range of 200 to 2000 mPa · s. In Example 18, no particular viscosity adjustment was performed, and the viscosity at 30 ° C. of the liquid detergent was about 50 mPa · s.
The following items were evaluated about the liquid detergent of each case. The evaluation results are shown in the table.

<Evaluation method>
[Stability to light]
The liquid detergent prepared in Example 20 was used as a blinding sample. Example 20 does not contain the (A) component and the (B) component in the composition of Example 1, but instead is increased in water.
The liquid detergent and the blind sample obtained in each example were each placed in a glass transparent container (volume 100 ml) and sealed, and allowed to stand for 2 weeks in a place exposed to sunlight. The color tone was visually evaluated after 2 weeks. The blinded samples were colored slightly yellow to reddish brown. The stability was judged based on the following criteria. D is a failure.
A: There is less coloring than the blind sample.
B: Equivalent to a blind sample.
C: Slightly colored in comparison to the blind sample.
D: Strongly colored compared to the blind sample.

[Heat stability]
Blind samples were prepared as described above.
The liquid detergent and the blind sample obtained in each example were each placed in a glass transparent container (volume 100 ml) and sealed, and allowed to stand in a thermostatic bath maintained at 50 ° C. for 1 month. The color tone was visually evaluated after one month. The blinded samples were colored slightly yellow to reddish brown. The stability was judged based on the following criteria. D is a failure.
A: There is less coloring than the blind sample.
B: Equivalent to a blind sample.
C: Slightly colored in comparison to the blind sample.
D: Strongly colored compared to the blind sample.

[Evaluation of normal washability (protein stains)]
The washability to protein stains was evaluated by the conventional washing method.
The reflectance of 10 sheets of EMPA 117 (purchased from Swissatest Testmaterialien AG) before washing was measured using a color difference meter (manufactured by Nippon Denshoku Kogyo Co., Ltd., product name: SE-2000) (from Hunter whiteness Z to reflectance R = Z / Calculated as 100. The same applies hereinafter. A Terg-O-Tometer (manufactured by U.S. Testing) was used as a cleaning tester, and ten pieces of EMPA 117 and a charge cloth (a finely cut knit cloth was thoroughly washed and rinsed and dried) The mixture was weighed to have a bath ratio (30 times) and placed in a washing tank, and a liquid detergent was placed in 900 ml of 25 ° C. tap water to a concentration of 2000 ppm. After washing for 10 minutes at a rotation speed of 120 rpm and a temperature of 25 ° C., rinsing was performed twice with 900 mL of 25 ° C. tap water for 3 minutes. After rinsing and drying, the reflectance of the soiled cloth after washing was measured using a 460 nm filter, and the washing rate was calculated by the following formula (rounding off the decimal point).
The larger the value of the obtained cleaning rate, the higher the cleaning power. The average value of the cleaning rates of 10 sheets of EMPA 117 was determined and evaluated based on the following criteria. C is a failure.
A: The average cleaning rate is 80% or more.
B: The average value of the cleaning rate is 55% or more and less than 80%.
C: The average cleaning rate is less than 55%.

(In the formula, contaminated cloth refers to the above-mentioned wet artificial soiled cloth, cleaning cloth refers to the cloth after cleaning the contaminated cloth, and unpolished cloth refers to the original unpolished white cloth (raw cloth) Respectively, K represents an absorption coefficient, S represents a scattering coefficient, R represents an absolute reflectance, respectively.

[Evaluation of coating washability (protein stains)]
The liquid detergent was evaluated for its ability to wash on protein stains by a direct application method to the soil area.
The reflectance of 5 sheets of EMPA 117 (purchased from Swissatest Testmaterialien AG) before washing was measured using a color difference meter (manufactured by Nippon Denshoku Kogyo Co., Ltd., product name: SE-2000) (from Hunter whiteness Z to reflectance R = Z / Calculated as 100. The same applies hereinafter. Use Terg-O-Tometer (manufactured by U.S. Testing) as a cleaning tester, and apply five pieces of EMPA 117 coated with 0.36 g each of liquid cleaner for 5 minutes and cut the charge cloth (finely cut the knit cloth, and sufficient The product was washed and rinsed, and the dried product was weighed to a predetermined bath ratio (30 times) and placed in a washing tank, and 900 ml of 25 ° C. tap water was placed.
After washing for 10 minutes at a rotation speed of 120 rpm and a temperature of 25 ° C., rinsing was performed twice with 900 mL of 25 ° C. tap water for 3 minutes. After rinsing and drying, the reflectance of the soiled cloth after cleaning was measured using a 460 nm filter, and the cleaning rate was calculated by the above equation (rounded off after the decimal point). The larger the value of the obtained cleaning rate, the higher the cleaning power. The average value of the cleaning rates of five sheets of EMPA 117 was determined and evaluated based on the following criteria. C is a failure.
A: The average cleaning rate is 90% or more.
B: The average value of the cleaning rate is 85% or more and less than 90%.
C: The average cleaning rate is less than 85%.

[Evaluation of recontamination prevention property]
The Z value of 10 sheets of cotton-white cloth for evaluation before washing was measured with a color difference meter (manufactured by Nippon Denshoku Kogyo Co., Ltd., product name: SE-2000). Use Terg-O-Tometer (U.S. Testing) as a cleaning tester, 10 EMPA 117, 10 cotton-white cloths for evaluation and 10 charge cloths (cut the knit cloth finely, and thoroughly wash and rinse) The dried product was weighed to a predetermined bath ratio (30 times) and placed in a washing tank, and a liquid detergent was placed in 900 ml of 25 ° C. tap water to a concentration of 2000 ppm. After washing for 10 minutes at a rotation speed of 120 rpm and a temperature of 25 ° C., rinsing was performed twice with 900 mL of 25 ° C. tap water for 3 minutes. After rinsing and drying, the Z value of the evaluation cotton cloth after washing was measured using a 460 nm filter, and the washing rate was calculated by the following equation (i) (the decimal point is rounded off).
Anti-recontamination property = before cleaning Z value-after cleaning Z value ... (i)
The smaller the value of the anti-redeposition value obtained, the higher the anti-recontamination ability. The average value of antiredeposition properties of 10 sheets was determined.

[Evaluation of antibacterial activity]
Operation 1) Washing treatment Approximately 400 g of a cloth to be washed was placed in a fully automatic electric washing machine (product name "JW-Z23A" manufactured by Haier) [Bath ratio (washing amount / total weight of cloth to be washed) 30 times] . As the cloth to be washed, a combination of approximately 30 g of cotton-gill No. 3 (purchased from Tanigami Store) cut into a size of 5 cm × 5 cm and a cotton-skin shirt (manufactured by B. V. D.) .
Next, 2000 ppm of the liquid detergent of each example was added to the above-mentioned fully automatic electric washing machine, and the washing operation of sequentially washing, rinsing and dewatering in the standard course was performed. At that time, the standard course setting of the washing machine was used as it was without adjusting at all for the washing time, rinsing, dewatering, and water volume (set to low water level, water volume about 12 L).
After washing, the cotton swab was taken out, and the taken-out cotton swab was left to dry in a constant temperature and humidity chamber at 25 ° C. and a relative humidity of 65% RH. After drying, the cotton swab was used as a test cloth for evaluation of the antibacterial effect. In addition, as the non-treated cloth, a cotton swab which was not subjected to the cleaning operation was used.

Procedure 2) Measurement of Antibacterial Activity Value against Staphylococcus aureus The instruments, water and the like used in this evaluation were those which had been previously sterilized by an autoclave. Furthermore, in the present evaluation, Staphylococcus aureus was used as a fungus.
Using Staphylococcus aureus cultured according to JIS L1902, dilute the nutrient culture medium 20 times and prepare Staphylococcus aureus mother liquor so that the number of bacteria will be 1 ± 0.3 × 10 ⁵ cells / mL. did.
0.1 mL of each of the S. aureus mother liquors was inoculated at four locations on the test cloth (5 cm × 5 cm), and the cells were cultured in a thermostat bath at 37 ° C. for 18 hours, and were grown or bacteriostatic on the test cloth.
Thereafter, bacteria were extracted from the test cloth with an extract (saline for washing out described in JIS L1902), and the extract was diluted 10-fold with physiological saline. The operation of further diluting the obtained diluted solution 10 times was repeated four times to obtain a 100,000-fold diluted solution. In addition, with "saline solution for washing out", 8.5 g of sodium chloride is collected with respect to 1,000 mL of purified water, these are put into a flask and sufficiently dissolved, and further polyoxyethylene as a nonionic surfactant After adding and dissolving 2 g of sorbitan monooleate (Kanto Kagaku Co., Ltd. trade name "Polysorbate 80, Tween 80"), high-pressure steam sterilization (autoclave processing) is carried out.
Next, 100 μL of the obtained 100,000-fold diluted solution is collected on a standard agar medium (manufactured by Acte Co., Ltd.), and the one uniformly coated with a Conrage stick is used for 1 to 2 days in a 37 ° C. thermostatic bath. After culture, the number of colonies was counted to determine the number of viable bacteria.
And about the untreated cloth, operation similar to a test cloth was performed, the viable count was measured, and the antimicrobial activity value (a) was computed from following formula (ii) using these measured values.
Antibacterial activity value = log 10 (viable count of untreated cloth / viable count of test cloth) ··· (ii)

Then, the viable count is measured for the test cloth and the untreated cloth in the same manner as in the above-mentioned procedures 1) and 2) except that the liquid cleaner for evaluation and comparison is used instead of the liquid cleaner, and the antibacterial activity is measured. The value (b) was calculated from the above equation (ii).
From the calculated antibacterial activity value (a) and the antibacterial activity value (b), the difference of the antibacterial activity value {antibacterial activity value (a) -antibacterial activity value (b)} is determined, and evaluation of the antimicrobial property imparting effect is performed according to the following criteria. went. D is a failure.
A: The difference in antibacterial activity value was 2.5 digits or more.
B: The difference of the antimicrobial activity value was 2.0 digits or more and less than 2.5 digits.
C: The difference in the antimicrobial activity value was at least 1.0 digit and less than 2.0 digits.
D: The difference in antibacterial activity value was less than 1.0 digit.

[Evaluation of sterilization]
1) Preparation of Bacterial Solution Using the following Escherichia coli, a bacterial solution was prepared so that the initial number of bacteria was 1 × 10 ⁸ cells / mL.
E. coli: Escherichia coli NBRC3972 (obtained from the National Institute of Technology and Evaluation (NBRC)).
2) Preparation of test solution The liquid detergent to be evaluated was diluted with pure water to prepare a liquid detergent aqueous solution (liquid detergent concentration: 0.16% by mass) to prepare a test liquid.
3) Bactericidal activity test At 25 ° C., 1 mL of the bacterial solution 1) was added to 9 mL of the test solution 2), and the test bacterial solution was prepared by stirring for 10 minutes.
Subsequently, 0.5 mL of the test solution was added to 4.5 mL of SCDLP agar medium (Soybean-Casein Digest Broth with Lectin & Polysorbate 80, Wako Pure Chemical Industries, Ltd.) to obtain a 10-fold diluted solution.
Next, 1.0 mL of the diluted solution was collected in a petri dish, 15 mL of SCDLP agar medium was added to homogenize, and then culture was performed for 1 day (agar plate dilution method). The number of viable bacteria was determined by counting the colonies after culture.
The bactericidal activity was calculated from the following formula based on the number of original bacteria and the number of surviving bacteria, and the bactericidal effect was evaluated according to the following criteria. The higher the bactericidal value, the higher the bactericidal effect.
Bactericidal activity = -log 10 (number of viable bacteria / number of initial bacteria)
A: The bactericidal value is 2 or more.
B: The bactericidal value is 1 or more and less than 2.
C: The bactericidal value is 0.5 or more and less than 1.
D: The bactericidal value is less than 0.5.

As shown in the results of Tables 1, 2 and 4, all of Examples 1 to 19 and Examples 30 to 34 to which the present invention is applied are generally good in detergency (protein stain) and antibacterial property, and exposed to light. The coloring when done was also well suppressed.
Furthermore, in Examples 1-16, Examples 18, 19, and Examples 30-34 containing the component (D), the evaluation of coating washability (protein stain) was also good.
Furthermore, Examples 30 to 33 containing the (E) component also had good evaluation of bactericidal properties.
Moreover, Examples 1 to 17 and 19 and Examples 30 to 33 containing an anionic surfactant were superior in anti-soiling resistance as compared with Example 18 not containing an anionic surfactant.

As shown in the results of Table 3, Examples 21 and 25 which contain (A) and (C) and do not contain (B) have poor stability to light and are exposed to light. To a slightly more intense color than the blind sample of Example 20.
Example 22 is an example using the comparative component (2) which is an organic antioxidant, instead of the component (B). The stability to light was not good, and the stability to heat was also inferior to Examples 21 and 25.
Example 23 is an example in which the component (A) is not used, and although the antibacterial property is not acceptable, the stability to light is as good as the blind sample and there is no problem.
The results of Examples 20 and 21 and 25 show that the component (A) is stable to heat but unstable to light.
From the results of Examples 21 and 22, it is considered that the thermal stability of Example 22 is inferior to Examples 21 and 25 because coloring occurs when the organic reducing agent, Comparative Component (2), is oxidized. Be

  Example 24 is an example which uses the comparison component (1) which is a cationic surfactant instead of the (A) component and does not contain the (B) component. Since it does not contain the component (A), there is no problem with light stability even if it does not contain the component (B), but the antibacterial effect of the cationic surfactant is not exhibited in the presence of the component (C) Was a failure. Example 24 is inferior to the examples 20 and 23 in heat stability. It is considered that the comparative component (1) was colored by heat.

  The liquid detergent for textiles of the present invention is useful as a detergent for imparting antimicrobial properties to textile after laundering.

Claims (9)

(A) Component: Phenolic antibacterial agent,
Component (B): an inorganic reducing agent,
Component (C): a surfactant, and a liquid detergent for textile products.   (D) Component: The liquid detergent for textiles according to claim 1, which contains a protease.   Component (E): at least one selected from the group consisting of glyceryl ethers having a hydrocarbon group having 4 to 12 carbon atoms, and fatty acid esters having a fatty acid residue having 4 to 10 carbon atoms. Or 2 liquid detergents for textiles.   The content of the component (A) is 0.01 to 2% by mass, the content of the component (B) is 0.001 to 3% by mass, and the content of the component (C) with respect to the total mass of the liquid detergent The liquid detergent for textiles as described in any one of Claims 1-3 whose content is 8-30 mass%.   The mass ratio of the content of the component (A) to the content of the component (B) in the liquid detergent, (A) / (B) is 0.005 to 60. Liquid cleaner for textiles according to one of the claims.   The component (C) contains an anionic surfactant, and the total amount of the anionic surfactant is 40 to 100% by mass with respect to the total amount of the component (C). Liquid cleaner for textiles as described.   The component (C) contains an anionic surfactant and a nonionic surfactant, and the total amount of the anionic surfactant and the nonionic surfactant is 80 to 100% by mass based on the total amount of the component (C). The liquid detergent for textiles as described in any one of claim | item 1 -3.   The liquid detergent for textiles according to claim 7, wherein the total amount of the anionic surfactant is 50 to 97% by mass based on the total amount of the anionic surfactant and the nonionic surfactant.   The liquid detergent for textiles according to any one of claims 1 to 3, which has a viscosity of 50 to 2500 mPa · s at 30 ° C.