JP2018188641A - Liquid detergent composition for garment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a liquid detergent composition for clothing excellent in urine odor removing effect and antibacterial property. SOLUTION: At least one antibacterial agent selected from the group consisting of (A) component: hydroxycarboxylic acid, (B) component: (b-1) component, (b-2) component and (b-3) component. The agent and the component (C): a nonionic surfactant are contained, and the content of the component (A) is 5% by mass or more with respect to the total mass of the liquid detergent composition for clothing, and the pH at 25 ° C. A liquid detergent composition for clothing, wherein the composition is 2 to 6. [Selection diagram] None

Description

  The present invention relates to a liquid cleaning composition for clothing.

  The urine odor adhering to clothing is a problem in homes and nursing homes where the elderly and care recipients are present. Furthermore, there is a problem that urine odor is difficult to remove by ordinary washing.

  Patent Document 1 includes (A) 8-cyclohexadecene-1-one, (B) one or more fragrances selected from camphor, borneol, l-menton, and the like, (C) a surfactant, and (D) percarbonate. It proposes a laundry pretreatment composition containing sodium and (E) a bleach activator. According to Patent Document 1, high deodorizing performance against urine odor and fecal odor is exhibited.

JP 2017-39871 A

However, in the laundry pretreatment composition of Patent Document 1, it is necessary to immerse the article to be washed in the diluted solution of the laundry pretreatment composition, and then treat it with the washing agent, which is complicated. Moreover, the urine odor removal effect is not sufficient.
In addition, the cleaning composition is also required to have antibacterial properties (particularly, the effect of suppressing the off-flavor caused by the adhesion of bacteria when the object to be cleaned is dried in the room).
This invention is made | formed in view of the said situation, and it aims at providing the liquid cleaning composition for clothes excellent in the urine odor removal effect and antibacterial property.

As a result of intensive studies, the present inventors have found that urine odor is one of the causes of urine-derived p-cresol, and p-cresol is combined with urinary stone stains consisting of phosphates and proteins. I found out that the urine odor is difficult to remove even after washing.
The present inventors have found that the following liquid detergent composition for clothing can solve the above-mentioned problems.
That is, this invention has the following aspects.
[1] Component (A): hydroxycarboxylic acid,
(B) component: at least one antibacterial agent selected from the group consisting of the following component (b-1), component (b-2) and component (b-3); and component (C): a nonionic surfactant. Containing,
Content of the said (A) component is 5 mass% or more with respect to the total mass of the liquid cleaning composition for garments,
A liquid detergent composition for clothing having a pH of 2 to 6 at 25 ° C.
(B-1) Component: As a substituent of a quaternary nitrogen atom, a linear or branched alkyl group having 1 to 16 carbon atoms, a linear or branched alkyl group having 1 to 16 carbon atoms, A quaternary ammonium salt having a hydroxyalkyl group having 1 to 16 carbon atoms or a phenylalkyl group having 1 to 16 carbon atoms.
(B-2) Component: Phenol antibacterial agent.
(B-3) Component: Biguanide compound.
[2] The liquid cleaning composition for clothing according to [1], wherein the component (A) is at least one selected from the group consisting of citric acid, tartaric acid, malic acid, and lactic acid.
[3] The liquid cleaning composition for clothing according to claim 1 or 2, wherein the content of the component (C) is 30% by mass or less based on the total mass of the liquid cleaning composition for clothing.
[4] The liquid cleaning composition for clothing according to any one of claims 1 to 3, which is for care products, pets, or infants.

  ADVANTAGE OF THE INVENTION According to this invention, the liquid cleaning composition for clothing excellent in the urine odor removal effect and antibacterial property can be provided.

  The liquid cleaning composition for clothing of the present invention contains the following components (A) to (C).

<(A) component>
(A) A component is hydroxycarboxylic acid. In the present specification, the hydroxycarboxylic acid refers to a carboxylic acid having a hydroxy group. Examples of the hydroxycarboxylic acid include citric acid, tartaric acid, malic acid, lactic acid, hydroxybutyric acid, glycolic acid and the like. Among the hydroxycarboxylic acids, citric acid, tartaric acid, malic acid and lactic acid are preferable, citric acid and tartaric acid are more preferable, and citric acid is particularly preferable from the viewpoints of performance and availability.
As the component (A), one type may be used alone, or two or more types may be used in combination.

(A) Content of a component is 5 mass% or more with respect to the total mass of the liquid cleaning composition for garments. If it is 5 mass% or more, the urine odor removal effect can be improved. 5-20 mass% is preferable and, as for content of (A) component, 7-12 mass% is more preferable.
It is easy to improve the urine odor removal effect as it is more than the above-mentioned lower limit.
It is easy to improve stability as it is below the above-mentioned upper limit.

<(B) component>
The component (B) is at least one antibacterial agent selected from the group consisting of the following components (b-1), (b-2) and (b-3).
Among the components (B), the component (b-2) and the component (b-3) are preferable, and the component (b-2) is more preferable. By using the component (b-2) and the component (b-3), it becomes possible to develop antibacterial properties at a low concentration, and the component (b-2) has good appearance stability.
(B-1) Component: As a substituent of a quaternary nitrogen atom, a linear or branched alkyl group having 1 to 16 carbon atoms, a linear or branched alkyl group having 1 to 16 carbon atoms, A quaternary ammonium salt having a hydroxyalkyl group having 1 to 16 carbon atoms or a phenylalkyl group having 1 to 16 carbon atoms.
(B-2) Component: Phenol antibacterial agent.
(B-3) Component: Biguanide compound.

  Examples of the component (b-1) include quaternary ammonium salts represented by the following formulas (b-1-1), (b-1-2), and (b-1-3).

In formula (b-1-1), two or more of R ^{1 to} R ⁴ are each independently an alkyl group having 1 to 3 carbon atoms or a hydroxyalkyl group having 1 to 3 carbon atoms, Other than that, it is a C8-C16 linear or branched alkyl group, or a C8-C16 linear or branched alkenyl group. Z ⁻ is a halogen ion or an alkyl sulfate ion.

  Examples of the compound represented by the formula (b-1-1) include didecyldimethylammonium chloride, alkyl chloride (carbon number 12) trimethylammonium, alkyl chloride (carbon number 14) trimethylammonium, alkyl chloride (carbon number 16) trimethyl. Ammonium is mentioned, and alkyl chloride (C12) trimethylammonium chloride is preferable.

In formula (b-1-2), R ⁵ is a linear or branched alkyl group having 8 to 16 carbon atoms, or a linear or branched alkenyl group having 8 to 16 carbon atoms. . R ⁶ is an alkyl group having 1 to 3 carbon atoms, a hydroxyalkyl group having 1 to 3 carbon atoms, or an aromatic hydrocarbon group having 5 to 20 carbon atoms. x and y represent the average number of repeating oxyethylene groups, each independently an integer of 0 or more, and x + y is 10 or more. Z ⁻ is a halogen ion or an alkyl sulfate ion.

In formula (b-1-3), R ⁷ and R ⁸ are each independently an alkyl group having 1 to 3 carbon atoms or a hydroxyalkyl group having 1 to 3 carbon atoms, and R ⁹ has 8 carbon atoms. -16 linear or branched alkyl group or alkenyl group, and R ¹⁰ is an alkylene group having 1 to 3 carbon atoms. Z ⁻ is a halogen ion or an alkyl sulfate ion.
The content of the component (b-1) is preferably 0.001 to 5 mass%, more preferably 0.01 to 3 mass%, and more preferably 0.2 to 2 based on the total mass of the liquid cleaning composition for clothing. Mass% is particularly preferred.

As the component (b-2), dichrosan, triclosan, chlorthymol, carbachlor, chlorophene, dichlorophene, hexachlorophene, chloroxylenol, chlorocresol, and other chlorophenol antibacterial agents; O-phenylphenol, isopropylmethylphenol Of these, dichrosan is preferred.
The content of the component (b-2) is preferably 0.001 to 2% by mass, more preferably 0.01 to 0.5% by mass with respect to the total mass of the liquid detergent composition for clothing, and 0.02 -0.1 mass% is especially preferable.

Examples of the component (b-3) include biguanide compounds represented by the following general formula (b-3-1), chlorohexidine hydrochloride (1,1′-hexamethylene bis [5- (4-chlorophenyl) biguanide] dihedrochloride), and the like. Can be used.
-[R _< ¹¹ > -NH-C (NH) -NH-C (NH) -NH] n-n.HY (b-3-1)
In formula (b-3-1), R ¹¹ is an alkylene group having 2 to 8 carbon atoms, preferably an alkylene group having 4 to 8 carbon atoms, particularly a hexamethylene group, and n is 2 to 14 Yes, preferably 10-14, more preferably 11-13, and particularly preferably 12. HY represents an organic acid or an inorganic acid, preferably hydrochloric acid, gluconic acid or acetic acid, and most preferably hydrochloric acid.
As the component (b-3), in general formula (b-3-1), R ¹¹ is a hexamethylene group, n is preferably 10 to 14, and n is 11 to 13 is preferable. Polyhexamethylene biguanide hydrochloride is most preferred. As the preferred polyhexamethylene biguanide antibacterial agent, a commercially available product can be used, R ^{11 in the} above general formula (b-3-1) is a hexamethylene group, n is 12, and HY is hydrochloric acid. Poly (hexamethylene biguanide) hydrochloride (trade name Proxel IB®) can be used.
The content of the component (b-3) is preferably 0.001 to 3% by mass, more preferably 0.005 to 0.5% by mass with respect to the total mass of the liquid cleaning composition for clothing, 0.01 -0.1 mass% is especially preferable.
As the component (B), one type may be used alone, or two or more types may be used in combination.
As the component (B), the phenolic antibacterial agent of the component (b-2) is preferable, a chlorophenolic antibacterial agent is more preferable, and dichrosan is further preferable.

(B) 0.001 mass% or more is preferable with respect to the gross mass of the liquid cleaning composition for garments, as for content of a component, 0.005-5 mass% is more preferable, and 0.01-3 mass% is. Further preferred.
It is easy to improve the urine odor removal effect and antibacterial property as it is above the lower limit.
When the amount is not more than the above upper limit value, the effect of preventing recontamination (an effect of preventing dirt from adhering to the object to be washed again) can be easily improved.

1-4000 are preferable, as for mass ratio (henceforth A / B ratio) represented by (A) component / (B) component, 10-2000 are more preferable, and 50-1000 are especially preferable.
When the A / B ratio is within the above range, the effect of removing urine odor is high and the storage stability is good.

<(C) component>
Component (C) is a nonionic surfactant. Specific examples include poly (oxyalkylene) alkyl ethers represented by the following formula (c-1).
^{_{R 12 -X - [(EO)}} s / (PO) t] -R 13 ··· (c-1)
In formula (c-1), R ¹² is a hydrocarbon group having 8 to 18 carbon atoms, X is —O— or —C (O) O—, R ¹³ is a hydrogen atom, and 1 to 6 carbon atoms. Or an alkenyl group having 2 to 6 carbon atoms. s represents the average number of repetitions of EO and is a number from 3 to 20. t represents the average number of repetitions of PO and is a number from 0 to 6. EO represents an oxyethylene group, PO represents an oxypropylene group, and EO and PO may be mixed and arranged.

In the formula (c-1), the hydrocarbon group as R ¹² has 8 to 18 carbon atoms, and preferably 10 to 18 in terms of easy obtaining of a particularly good detergency. R ¹³ may be linear or branched. R ¹² is preferably an aliphatic hydrocarbon group, more preferably a linear or branched alkyl group, or a linear or branched alkenyl group.
Examples of the hydrocarbon group as R ¹² include those derived from raw materials such as primary or secondary higher alcohols, higher fatty acids and higher fatty acid amides. Specifically, residues obtained by removing OH groups from primary or secondary higher alcohols, residues obtained by removing C (O) OH groups from higher fatty acids, and C (O) NH groups removed from higher fatty acid amides. Residue, etc.
Carbon number of the alkyl group as R < ¹³ > is 1-6, and 1-3 are preferable. The number of carbon atoms of the alkenyl group as R ¹³ is 2 to 6, preferably 2 to 3.
X is —O— or —C (O) O—. When X is —O—, the component (C) is an alcohol alkoxylate. In this case, since the detergency is good, it is preferable that the carbon number of R ¹² is 10 to 18, R ¹² may have an unsaturated bond. In this case, R ¹³ is preferably a hydrogen atom.
When X is -C (O) O-, the component (C) is a fatty acid ester type nonionic surfactant. In this case, since the detergency is good, the carbon number of R ¹² is preferably 9-18, more preferably 11-18. R ¹² may have an unsaturated bond. In this case, R ¹³ is preferably an alkyl group having 1 to 3 carbon atoms.

In the formula, s is the average number of repetitions of EO (oxyethylene group), and t is the average number of repetitions of PO (oxypropylene group). s and t mean weighted average values, respectively. s and t can be measured using, for example, a gas chromatograph mass spectrometer.
s is 3-20, Preferably it is 5-18, More preferably, it is 9-16, More preferably, it is 14-16. When s exceeds 20, the HLB value becomes too high and the cleaning power tends to decrease. On the other hand, when s is less than 3, the raw material odor of the component (C) itself tends to deteriorate.
t is 0 to 6, preferably 0 to 3. When t exceeds 6, the storage stability at high temperature tends to be lowered.
EO and PO may be mixed and arranged, and (EO) s / (PO) t may be added in a random form or in a block form.

For example, as represented by the following formula (c-2), an EO block chain—a PO block chain—an EO block chain may be added in this order, or an EO and PO random chain—an EO block chain. They may be added in the order of.
^{_{R 14 -O - [(EO)}} p / (PO) q] - (EO) r -H ··· (c-2)
In the formula (c-2), R ¹⁴ is a hydrocarbon group having 8 to 18 carbon atoms. p represents the average number of repetitions of EO, q represents the average number of repetitions of PO, r represents the average number of repetitions of EO, p, q, r are p> 1, r> 1, 0 <q ≦ 3, p + r = 10-20. EO represents an oxyethylene group, PO represents an oxypropylene group, and EO and PO in (EO) p / (PO) q may be arranged randomly or in blocks.
R ¹⁴ is the same as R ^{12 in} formula (c-1), including preferred embodiments.
The component represented by the formula (c-2) can be produced by a known method. For example, it can be produced by adding ethylene oxide to an alcohol having a hydrocarbon group after addition reaction in the order of ethylene oxide and propylene oxide, or after adding and mixing ethylene oxide and propylene oxide (random addition).
When the component (C) represented by the formula (c-2) is used, an appropriate viscosity is easily obtained and gelation is suppressed. Moreover, foamability improves and biodegradability also becomes better.
In particular, the ratio of EO to PO in the formula (c-2) is preferably 0.1 to 0.5, more preferably 0.1 to 0.3, as a ratio represented by q / (p + r). It is. When the ratio represented by q / (p + r) is equal to or higher than the lower limit value, bubbles are not excessively formed and foaming is easily optimized. When it is at most the upper limit value, an appropriate viscosity is easily obtained, and gelation is easily suppressed.

In the component (C) represented by the formula (c-1), the distribution of the average number of repetitions of EO or PO easily varies depending on the reaction method when the component (C) is produced, and is not particularly limited. For example, using a general alkali catalyst such as sodium hydroxide or potassium hydroxide, ethylene oxide or propylene oxide is converted to a starting compound having a hydrocarbon group (primary or secondary higher alcohol, higher fatty acid, higher fatty acid amide, etc. ), The distribution tends to be relatively wide. On the other hand, specific alkoxylation such as magnesium oxide to which metal ions such as Al ³⁺ , Ga ³⁺ , In ³⁺ , Tl ³⁺ , Co ³⁺ , Sc ³⁺ , La ³⁺ , Mn ^{2+ and the} like described in Japanese Patent Publication No. 6-15038 are added. When ethylene oxide or propylene oxide is added to the starting compound having a hydrocarbon group using a catalyst, the distribution tends to be relatively narrow.

Specific examples of the component (C) include trade name Diadol (C13, C represents the number of carbon atoms, manufactured by Mitsubishi Chemical Corporation), trade name Neodol (mixture of C12 and C13) manufactured by Shell, Sasol. What added 12 mol equivalent or 15 mol equivalent ethylene oxide to alcohol, such as brand name Safol23 (mixture of C12 and C13) by a company;
A product obtained by adding 12 moles or 15 moles of ethylene oxide to a natural alcohol such as trade name CO-1214 or CO-1270 manufactured by P &G;
7 mol equivalent of ethylene oxide added to C13 alcohol obtained by subjecting C12 alkene obtained by trimerization of butene to oxo method (trade name Lutensol TO7 manufactured by BASF);
A product obtained by adding 9 moles of ethylene oxide to C10 alcohol obtained by subjecting pentanol to gerbet reaction (trade name Lutensol XP90 manufactured by BASF);
A product obtained by adding 7 moles of ethylene oxide to C10 alcohol obtained by subjecting pentanol to garvet reaction (trade name Lutensol XL70 manufactured by BASF);
A product obtained by adding 6 moles of ethylene oxide to C10 alcohol obtained by subjecting pentanol to garvet reaction (trade name Lutensol XA60 manufactured by BASF);
Examples include those obtained by adding 9 mol or 15 mol of ethylene oxide to a secondary alcohol having 12 to 14 carbon atoms (trade names Softanol 90, Softanol 150 manufactured by Nippon Shokubai Co., Ltd.).
Furthermore, to the palm fatty acid methyl (lauric acid / myristic acid = 8/2), using an alkoxylation catalyst, 15 mol equivalent of ethylene oxide was added (polyoxyethylene palm fatty acid methyl ester (EO 15 mol)) Also mentioned.

As the component (C), polyoxyethylene alkyl ether (AE), polyoxyethylene polyoxypropylene alkyl ether (EOPO type nonion) in which X is —O— in the formula (c-1), particularly in terms of detergency Or the like, or a fatty acid ester type nonionic surfactant in which X is —C (O) O— in formula (c-1). The component (C) is more preferably a polyoxyalkylene type nonionic surfactant.
As the component (C), one type may be used alone, or two or more types may be used in combination.

(C) 5 mass% or more is preferable with respect to the gross mass of the liquid cleaning composition for garments, and, as for content of a component, 15 mass% or more is more preferable.
It is easy to give sufficient detergency that it is more than the above-mentioned lower limit.
(C) 50 mass% or less is preferable with respect to the total mass of the liquid cleaning composition for garments, 40 mass% or less is more preferable, and 30 mass% or less is further more preferable.
It is easy to improve stability as it is below the above-mentioned upper limit.

0.15-4 are preferable and, as for mass ratio (henceforth A / C ratio) represented by (A) component / (C) component, 0.2-1 are more preferable.
When the A / C ratio is within the above range, the effect of removing urine odor is high and the storage stability is good.

The mass ratio (hereinafter also referred to as B / C ratio) represented by (B) component / (C) component is preferably 0.0002 to 0.1, more preferably 0.0005 to 0.01. -0.005 is particularly preferred.
When the B / C ratio is in the above range, the effect of removing the urine odor is high, the cleaning effect is good, and the room drying odor suppressing effect is high.

<Other optional components>
The liquid detergent composition for clothing of the present invention can appropriately contain known components used for liquid detergents in addition to the above-described components and water.
For example, nonionic surfactants other than the component (C), anionic surfactants, amphoteric surfactants, enzymes, pH adjusters, water-miscible organic solvents, metal ion scavengers, antioxidants, preservatives, texture improvers , Dye transfer inhibitors, recontamination inhibitors, pearl agents, soil release agents, hydrotropes, flavoring agents, colorants, emulsion agents, fluorescent agents, extracts and the like.
Although the total content of other optional components is not particularly limited, for example, 10% by mass or less is preferable, 7% by mass or less is more preferable, and 5% by mass or less is more preferable with respect to the total mass of the liquid detergent for clothing. .

Examples of the anionic surfactant include linear alkyl benzene sulfonic acid or a salt thereof; α-olefin sulfonate; linear or branched alkyl sulfate ester salt; alkyl ether sulfate ester salt or alkenyl ether sulfate ester salt; alkane sulfonate salt Α-sulfo fatty acid ester salt; fatty acid or salt thereof, alkyl ether carboxylate, polyoxyalkylene ether carboxylate, alkyl (or alkenyl) amide ether carboxylate, acylaminocarboxylate and the like anion of carboxylic acid type Surfactant: Phosphate type anion field such as alkyl phosphate ester salt, polyoxyalkylene alkyl phosphate ester salt, polyoxyalkylene alkylphenyl phosphate ester salt, glycerin fatty acid ester monophosphate ester salt A surface active agent etc. are mentioned.
Examples of these salts include alkali metal salts such as sodium and potassium, alkaline earth metal salts such as magnesium, alkanolamine salts such as monoethanolamine salts and diethanolamine salts.
Among these, it is preferable to use linear alkylbenzene sulfonic acid or a salt thereof. An anionic surfactant may be used individually by 1 type, and may combine 2 or more types. 2.5-20 mass% is preferable with respect to the total mass of the liquid detergent composition for garments, and, as for content of an anionic surfactant, 3-10 mass% is more preferable.

  Antioxidants include BHT (dibutylhydroxytoluene), BHA (butylhydroxyanisole), vitamin E (tocopherol), sodium erythorbate, methoxyphenol, sulfur dioxide, coffee bean extract (chlorogenic acid), green tea extract (catechin) ) And rosemary extract, and BHT (dibutylhydroxytoluene) and BHA (butylhydroxyanisole) are preferable. One type of antioxidant may be used alone, or two or more types may be combined. 0.0001-0.2 mass% is preferable with respect to the total mass of the liquid detergent composition for garments, and, as for content of antioxidant, 0.001-0.05 mass% is more preferable.

  Examples of the pH adjuster include inorganic acids such as hydrochloric acid, sulfuric acid, and phosphoric acid, sodium hydroxide, potassium hydroxide, alkanolamine, and ammonia. Among these, sulfuric acid, sodium hydroxide, potassium hydroxide, and alkanolamine are preferable, and sulfuric acid and sodium hydroxide are preferable from the viewpoint of the temporal stability of the liquid detergent. A pH adjuster may be used individually by 1 type, and may use 2 or more types together.

The “water-miscible organic solvent” is an organic solvent that dissolves 50 g or more in 1 liter of ion-exchanged water at 25 ° C., and a known liquid detergent can be used.
For example, C2-C4 monohydric alcohols such as ethanol, 1-propanol, 2-propanol, 1-butanol; ethylene glycol, propylene glycol, butylene glycol, triethylene glycol, tetraethylene glycol, average molecular weight of about 200 to 5000 C 2-4 polyhydric alcohols such as polyethylene glycol, methoxy polyethylene glycol, glycerin; and ethylene glycol monobutyl ether, ethylene glycol monohexyl ether, ethylene glycol monophenyl ether, propylene glycol monophenyl ether, diethylene glycol monomethyl ether, diethylene glycol Monobutyl ether, Certol EDGAC (diethylene glycol monoethyl ether acetate manufactured by Daicel Corporation) And glycol ether solvents such as tate).

The liquid detergent composition for clothing of the present invention has a pH of 2 to 6 at 25 ° C, preferably 2.5 to 5.5, and more preferably 3 to 5. When the pH is in such a range, the urine odor removal effect is easily improved.
The pH of the liquid detergent composition for clothing can be adjusted by adding a pH adjuster as necessary.
In the present specification, pH means a value measured with a pH meter (product name: HM-30G, manufactured by Toa DKK Co., Ltd.) with a measurement target at 25 ° C.
The total content of each component of the liquid cleaning composition for clothing of the present invention does not exceed 100% by mass.

<Manufacturing method>
The liquid detergent composition for clothes of the present invention can be produced according to a conventionally known method for producing a liquid detergent. For example, after adding and mixing each component excluding the pH adjuster to a part of the water as the dispersion medium, adding the pH adjuster to adjust to an arbitrary pH, and then adding the remainder of the water to adjust the total amount Let it be a liquid cleaning composition for clothes as 100 mass%.

<How to use>
Examples of the method of using the liquid cleaning composition for clothing of the present invention include, for example, a liquid cleaning composition for clothing alone or together with a known bleaching agent or softening agent in water to form a cleaning liquid. Examples thereof include a method of washing an object with a washing machine, a method of immersing an object to be washed in a washing liquid for a certain period of time, and then washing with a washing machine.
The liquid detergent composition for clothes of the present invention is preferably used for cleaning clothes of elderly people or care recipients (hereinafter also referred to as care products). Further, the liquid cleaning composition for clothes of the invention is not limited to washing clothes of elderly people or persons requiring care, but clothes with urine stains, such as urine stain clothes due to light incontinence, urine stain clothes for infants, Or it can be used suitably also for pet urine dirt clothes, mats, and the like.

In the liquid detergent composition for clothing of the present invention, the component (A) is at least one selected from the group consisting of citric acid, tartaric acid, malic acid, and lactic acid, and the component (B) is the above formula (b- 1-1) at least one selected from the group consisting of quaternary ammonium salts represented by (b-1-2) or (b-1-3), phenolic antibacterial agents, and biguanide compounds The (C) component is a nonionic surfactant represented by the above formula (c-1) or (c-2), and the content of the (A) component is based on the total mass of the liquid cleaning composition for clothing. It is 5-20 mass%, and it is preferable that pH at 25 degreeC is 2-6.
In the liquid detergent composition for clothing of the present invention, the component (A) is at least one selected from the group consisting of citric acid, tartaric acid, malic acid, and lactic acid, and the component (B) is the above formula (b- 1-1) at least one selected from the group consisting of quaternary ammonium salts represented by (b-1-2) or (b-1-3), phenolic antibacterial agents, and biguanide compounds The (C) component is a nonionic surfactant represented by the above formula (c-1), and the content of the (A) component is 5 to 20% by mass with respect to the total mass of the liquid cleaning composition for clothing. Yes, the pH at 25 ° C. is preferably 2-6.
The liquid detergent composition for clothing of the present invention is at least one selected from the group consisting of (A) component consisting of citric acid and tartaric acid, and (B) component is the above formula (b-1-1), It is at least one selected from the group consisting of a quaternary ammonium salt represented by (b-1-2) or (b-1-3), a phenolic antibacterial agent, and a biguanide compound, and component (C) Is a nonionic surfactant represented by the above formula (c-1), the content of the component (A) is 5 to 20% by mass based on the total mass of the liquid detergent composition for clothing, and (C) It is preferable that content of a component is 5-30 mass% with respect to the total mass of the liquid cleaning composition for clothes, and pH at 25 degreeC is 2-6.

Hereinafter, the present invention will be described in more detail using examples, but the present invention is not limited to these examples.
Each component was mixed according to the composition shown in Tables 1 and 2, and a pH adjuster was added to adjust the pH to the values shown in Tables 1 and 2 to obtain each composition.
The unit of the blending amount in the table is “mass%”, and all the components indicate the amount in terms of pure content.
A blank in the table indicates that the component is not blended.
“Balance” means that water is blended so that the total blending amount (mass%) of all blending components contained in the composition of each example is 100 mass%.
Below, the component shown in the table | surface is demonstrated.

<(A) component>
A-1: citric acid: manufactured by Kanto Chemical Co., Inc., reagent “citrate”.
A-2: L (+)-tartaric acid, manufactured by Wako Pure Chemical Industries, L (+)-Tartic Acid.
A′-1: 1-hydroxyethane-1,1-diphosphonic acid, manufactured by Rhodia, trade name “BRIQUEST ADPA”.
A′-2: hydrochloric acid: manufactured by Kanto Chemical Co., Inc.
<(B) component>
B-1: Alkyl chloride (carbon number 12) trimethylammonium, manufactured by Lion Akzo, trade name “ARCARD 12-37W”.
B-2: Diclosan (4,4′-dichloro-2-hydroxydiphenyl ether), trade name “TINOSAN HP100”, manufactured by BASF Corporation.
B-3: Poly (hexamethylene biguanide) hydrochloride, manufactured by Lonza Japan KK, trade name “Proxel IB”.
B′-1: Alkyl chloride (16 to 18 carbon atoms) trimethylammonium, manufactured by Lion Akzo, trade name “ARCARD T-800”.
<(C) component>
C-1: LMAO: a compound obtained by adding 15 mol of ethylene oxide to natural alcohol (Procter & Gamble, trade name “CO-1214”). In the formula (c-1), R ¹² is an alkyl group having 12 carbon atoms or an alkyl group having 14 carbon atoms, R ¹³ is H, -X- is -O-, s is 15, and t is 0.
<Optional component>
PEG: Polyethylene glycol (water-miscible organic solvent), manufactured by Lion Corporation, trade name “PEG1000”.
PTS-H: p-toluenesulfonic acid (hydrotrope agent), manufactured by Kyowa Hakko Kogyo Co., Ltd., trade name: PTS acid.
-Sodium benzoate: Sodium benzoate (preservative), manufactured by Toa Gosei Co., Ltd.
BHT: dibutylhydroxytoluene (antioxidant), trade name “SUMILZER BHT-R”, manufactured by Sumitomo Chemical Co., Ltd.
-Fragrance | flavor: Fragrance composition A of the fragrance | flavor composition A of Tables 11-18 of Unexamined-Japanese-Patent No. 2002-146399.
PH adjuster (NaOH): manufactured by Tsurumi Soda Co., Ltd., trade name: sodium hydroxide.
·water.

<Evaluation of urine odor removal effect>
(1) Preparation of apparel having urine odor Cotton underwear was collected from 10 nursing homes after use for urine.
The object of collection was clothing that had been used for more than one year, the frequency of urine leakage was 3 times / week, and the urine odor did not fall even after washing.
After collection, the panelist selects 0 point or 1 point for odor intensity according to the sensory evaluation of (3) below, and also gives a “heavy, unique, heavy and gloomy odor” characteristic of clothing with a large amount of p-cresol. Four household clothes were selected and used as test cloths.
The collected clothing was cut into a square of 4 cm on each side, and four cloths were used as test cloths.
(2) Cleaning with the composition The test cloth was subjected to a cleaning test as follows.
As a cleaning tester, Terg-O-meter (manufactured by UNITED STATES TESTING) was used. As the cleaning solution, a solution prepared by adding the liquid cleaning agent in Tables 1 and 2 to 833 ppm in 900 mL of water and stirring for 30 seconds was used. The cleaning tester was charged with 900 mL of the cleaning liquid, five sheets of the test cloth, and a cleaning knitted cloth, and was washed at 120 rpm and 15 ° C. for 20 minutes in accordance with the bath ratio of 20 times. Next, transfer to a two-tank washing machine (Mitsubishi Electric Corporation: product name CW-C30A1-H1), dehydrate for 1 minute, rinse in 30 L of tap water (15 ° C., 4 ° DH) for 3 minutes, and again for 1 minute Dehydrated.
(3) Sensory evaluation of urine odor Each panel sniffs four sets of four test cloths for one household, evaluates the odor intensity in six levels based on the following evaluation criteria, and each panel The four points of odor intensity were averaged. The higher the odor intensity score, the weaker the odor.
Moreover, based on the average score of sensory evaluation (average score of 6 persons), the deodorizing effect was evaluated according to the following criteria.
(Evaluation of odor intensity)
5 points: No off-flavor.
4 points: A nasty smell is finally felt.
3 points: The off-flavor is felt weak.
2 points: A strange odor is felt slightly stronger.
1 point: A strange odor is felt strongly.
0 point: A strange odor is felt intensely.
(Evaluation criteria)
(Double-circle): The average score of sensory evaluation is 3.0 or less.
A: The average score of sensory evaluation is 2.5 to 2.9.
(Triangle | delta): The average score of sensory evaluation is 2.0-2.4.
X: The average score of sensory evaluation is 1.9 or less.

<Evaluation of antibacterial effect>
(1) Sample used
The test cloth after the urine odor removal effect evaluation was used.
(2) Room drying conditions
The washed test cloths were placed on a net for 8 hours in a room at 24 ° C. and a relative humidity of 95% RH to make room drying conditions.
(3) Sensory evaluation of urine odor
It was performed in the same manner as the urine odor removal performance evaluation. Each panel sniffs 4 sets of odors from 4 test cloths for one household, and evaluates the odor intensity in 6 levels based on the following evaluation criteria. The average of 4 sets of odor intensity for each panel This was done by calculating the points. The higher the odor intensity score, the weaker the odor.
Moreover, based on the average score of sensory evaluation (average score of 6 persons), antibacterial effect was evaluated according to the following criteria.
(Evaluation of odor intensity)
5 points: No off-flavor.
4 points: A nasty smell is finally felt.
3 points: The off-flavor is felt weak.
2 points: A strange odor is felt slightly stronger.
1 point: A strange odor is felt strongly.
0 point: A strange odor is felt intensely.
(Evaluation criteria)
(Double-circle): The average score of sensory evaluation is 3.0 or less.
A: The average score of sensory evaluation is 2.5 to 2.9.
(Triangle | delta): The average score of sensory evaluation is 2.0-2.4.
X: The average score of sensory evaluation is 1.9 or less.

<Evaluation of stability>
A transparent glass bottle was filled with 100 g of the liquid cleaning composition for clothing of each example, and the lid was closed and sealed. In this state, it was stored in a constant temperature bath at 50 ° C. for 24 hours.
After the storage for 24 hours, the appearance of the liquid was visually observed, and the storage stability of the liquid detergent composition for clothing was evaluated according to the following evaluation criteria.
≪Evaluation criteria≫
○: colorless and transparent immediately after blending, and colorless and transparent even after storage at 50 ° C.
Δ: colorless and transparent immediately after blending, precipitation and turbidity were observed after storage.
X: Precipitation / separation was observed immediately after blending.

Examples 1 to 13 to which the present invention was applied were all excellent in urine odor removal effect and antibacterial effect.
Comparative Example 1 in which the content of the component (A) is less than 5% by mass was inferior in the urine odor removal effect.
Comparative Examples 2 and 3 using an acid other than hydroxycarboxylic acid as component (A) were inferior in the urine odor removal effect.
The comparative example 4 which does not contain (B) component was inferior in the antimicrobial effect.
Comparative Example 5 having a pH exceeding 6 was inferior in the urine odor removal effect.

Claims (4)

(A) component: hydroxycarboxylic acid,
(B) component: at least one antibacterial agent selected from the group consisting of the following component (b-1), component (b-2) and component (b-3); and component (C): a nonionic surfactant. Containing,
Content of the said (A) component is 5 mass% or more with respect to the total mass of the liquid cleaning composition for garments,
A liquid detergent composition for clothing having a pH of 2 to 6 at 25 ° C.
(B-1) Component: As a substituent of a quaternary nitrogen atom, a linear or branched alkyl group having 1 to 16 carbon atoms, a linear or branched alkyl group having 1 to 16 carbon atoms, A quaternary ammonium salt having a hydroxyalkyl group having 1 to 16 carbon atoms or a phenylalkyl group having 1 to 16 carbon atoms.
(B-2) Component: Phenol antibacterial agent.
(B-3) Component: Biguanide compound.   The liquid cleaning composition for clothing according to claim 1, wherein the component (A) is at least one selected from the group consisting of citric acid, tartaric acid, malic acid, and lactic acid.   The liquid cleaning composition for clothing according to claim 1 or 2, wherein the content of the component (C) is 30% by mass or less based on the total mass of the liquid cleaning composition for clothing.   The liquid cleaning composition for clothes according to any one of claims 1 to 3, wherein the composition is for care products, pets, or infants.