JP6752544B2 - Liquid cleaner for textiles - Google Patents

Description

The present invention relates to a liquid detergent for textile products.

Due to the growing tendency toward cleanliness, liquid detergents for textile products such as clothing not only clean dirt, but also remove unpleasant odors adhering to textile products (deodorant effect) and discomfort from textile products. It is required to prevent the generation of unpleasant odors (deodorant effect) (hereinafter, the deodorant effect and the deodorant effect are collectively referred to as the deodorant effect).
As a liquid detergent capable of imparting such a deodorizing effect, for example, Patent Document 1 discloses a liquid detergent containing cyclic dextrin.

Japanese Unexamined Patent Publication No. 2014-84447

In recent years, the use of water-saving washing machines has become mainstream due to heightened environmental awareness. In washing with a water-saving washing machine, the bath ratio (ratio of washing liquid to the object to be washed such as clothes) tends to be low. When washing is performed at a low bath ratio, recontamination is likely to occur in which the dirt removed during washing adheres to the object to be washed again.
However, the liquid detergent disclosed in Patent Document 1 does not take into consideration the problem of such recontamination.
Further, when providing a liquid detergent, it is required to have appearance stability without precipitation or precipitation of compounding components.
The present invention has been made in view of the above circumstances, and an object of the present invention is a liquid detergent for textile products, which has excellent deodorant effect and recontamination prevention effect, and also has good appearance stability.

As a result of diligent studies, the present inventors have found that the following liquid detergents for textile products can solve the above problems.
That is, the present invention has the following configuration.
[1] Component (A): Semi-polar surfactant, Component (B): Alkylbenzene sulfonic acid having 1 to 5 carbon atoms or a salt thereof, and Component (C): Anionic surfactant (However, ( B) A liquid detergent for textile products, which contains (B) does not contain components) and has a pH of 2 to 6 at 25 ° C.
[2] The liquid detergent for textile products according to [1], wherein the mass ratio represented by the component (B) / component (C) is 0.1 to 4.
[3] The description in [1] or [2], wherein the component (B) is one or more compounds selected from cumene sulfonic acid, xylene sulfonic acid, toluene sulfonic acid and salts thereof. Liquid detergent for textile products.

The liquid detergent for textile products of the present invention is excellent in deodorant effect and recontamination prevention effect, and is also excellent in appearance stability.

<Liquid detergent for textile products>
The liquid detergent for textile products of the present invention (hereinafter, may be simply referred to as "liquid detergent") is a liquid composition containing the components (A) to (C).
The liquid detergent of the present invention also includes a liquid bleaching agent.

<Ingredient (A)>
The component (A) is a semi-polar surfactant. By containing the component (A), the liquid detergent of the present invention can impart a deodorizing effect to textile products such as clothes after washing.

Examples of the semi-polar surfactant include amine oxide type surfactants.
Examples of the amine oxide type surfactant include compounds represented by the following general formula (1).

［式中、Ｒ^１は、炭素数７〜２２の直鎖状もしくは分岐鎖状のアルキル基又は炭素数７〜２２の直鎖状もしくは分岐鎖状のアルケニル基であり、Ｘは、−ＣＯＮＨ−、−ＮＨＣＯ−、−ＣＯＯ−又は−ＯＣＯ−であり、Ｒ^２は、炭素数１〜５のアルキレン基であり、Ｒ^３及びＲ^４は、それぞれ独立して炭素数１〜３のアルキル基又は炭素数１〜３のヒドロキシアルキル基であり、ｐは、０又は１の数である。］

[In the formula, R ¹ is a linear or branched alkyl group having 7 to 22 carbon atoms or a linear or branched alkenyl group having 7 to 22 carbon atoms, and X is -CONH-. , -NHCO-, -COO- or -OCO-, R ² is an alkylene group having 1 to 5 carbon atoms, and R ³ and R ⁴ are independently alkyl groups having 1 to 3 carbon atoms or It is a hydroxyalkyl group having 1 to 3 carbon atoms, and p is a number of 0 or 1. ]

Formula (1), R ¹ is preferably a linear or branched alkyl group having 7 to 22 carbon atoms, more preferably a linear or branched alkyl group having 9 to 14 carbon atoms.
In the formula (1), X is preferably -CONH- or -NHCO-, and more preferably -CONH-.
In the formula (1), R ² is preferably an alkylene group having 1 to 3 carbon atoms, and more preferably a propylene group having 3 carbon atoms.
In the formula (1), R ³ and R ⁴ are preferably alkyl groups having 1 to 3 carbon atoms independently, and more preferably methyl groups. Of these, R ³ and R ⁴ are both more preferably methyl groups.
In the formula (1), p is preferably 1.
As the amine oxide type surfactant represented by the general formula (1), any one type may be used alone, or two or more types may be used in combination.

Among the amine oxide-type surfactants represented by the general formula (1), the compounds represented by the following general formula (2) or the general formula (3) are preferable, and the compound represented by the general formula (3) is more preferable. preferable.

［式中、Ｒ^５は、炭素数８〜１８の直鎖状もしくは分岐鎖状のアルキル基又は炭素数８〜１８の直鎖状もしくは分岐鎖状のアルケニル基であり、Ｒ^６及びＲ^７は、それぞれ独立して炭素数１〜３のアルキル基又は炭素数１〜３のヒドロキシアルキル基である。］

[In the formula, R ⁵ is a linear or branched alkyl group having 8 to 18 carbon atoms or a linear or branched alkenyl group having 8 to 18 carbon atoms, and R ⁶ and R ⁷ are. , Are independently alkyl groups having 1 to 3 carbon atoms or hydroxyalkyl groups having 1 to 3 carbon atoms. ]

In the above formula (2), R ⁵ is preferably a linear or branched alkyl group having 8 to 18 carbon atoms, more preferably a linear or branched alkyl group having 10 to 14 carbon atoms.
In the formula (2), R ⁶ and R ⁷ are preferably alkyl groups having 1 to 3 carbon atoms independently, and more preferably methyl groups. Of these, both R ⁶ and R ⁷ are more preferably methyl groups.
As the compound represented by the general formula (2), any one of them may be used alone, or two or more of them may be used in combination.

［式中、Ｒ^８は、炭素数７〜２２の直鎖状もしくは分岐鎖状のアルキル基又は炭素数７〜２２の直鎖状もしくは分岐鎖状のアルケニル基であり、Ｒ^９及びＲ^１０は、それぞれ独立して炭素数１〜３のアルキル基又は炭素数１〜３のヒドロキシアルキル基であり、ｑは、１〜５の数である。］

[In the formula, R ⁸ is a linear or branched alkyl group having 7 to 22 carbon atoms or a linear or branched alkenyl group having 7 to 22 carbon atoms, and R ⁹ and R ¹⁰ are. , Are independently alkyl groups having 1 to 3 carbon atoms or hydroxyalkyl groups having 1 to 3 carbon atoms, and q is a number of 1 to 5. ]

In the formula (3), R ⁸ is preferably a linear or branched alkyl group having 7 to 22 carbon atoms, more preferably a linear or branched alkyl group having 9 to 13 carbon atoms.
In the above formula (3), R ⁹ and R ¹⁰ are preferably alkyl groups having 1 to 3 carbon atoms independently, and more preferably methyl groups. Of these, both R ⁹ and R ¹⁰ are more preferably methyl groups.
In the formula (3), q is preferably 1 to 3 and more preferably 3.
As the compound represented by the general formula (3), any one of them may be used alone, or two or more of them may be used in combination.

Examples of the component (A) include capril dimethylamine oxide, lauryldimethylamine oxide, myristyldimethylamine oxide, palmityldimethylamine oxide, stearyldimethylamine oxide, oleyldimethylamine oxide, coconut alkyldimethylamine oxide, and lauryldiethylamine oxide. Caprylic acid amidopropyl dimethylamine oxide, laurate amide propyl dimethylamine oxide, myristate amide propyl dimethylamine oxide, palmitate amide propyl dimethylamine oxide, stearate amide propyl dimethylamine oxide, behenate amide propyl dimethylamine oxide, oleic acid Examples thereof include amidopropyl dimethylamine oxide and coconut fatty acid amidopropyl dimethylamine oxide. Any one of these compounds may be used alone, or two or more of these compounds may be used in combination.

The content of the component (A) is preferably 0.1 to 5% by mass, more preferably 0.2 to 2% by mass, and 0.5 to 1.5% by mass with respect to the total mass of the liquid detergent. More preferred. When the content of the component (A) is 0.1% by mass or more, the deodorizing effect on the textile product is likely to be enhanced. Further, when the content of the component (A) is 5% by mass or less, the appearance stability of the liquid detergent is likely to be enhanced.

<Ingredient (B)>
The component (B) is an alkylbenzene sulfonic acid having 1 to 5 carbon atoms or a salt thereof. The liquid detergent of the present invention contains the component (B) to enhance the appearance stability.

Examples of the component (B) include compounds represented by the following general formula (4).

［式中、Ｒ^１１は、炭素数１〜５の直鎖状又は分岐鎖状のアルキル基であり、Ｍは、対イオンであり、ｒは、１〜３の数である。］

[In the formula, R ¹¹ is a linear or branched alkyl group having 1 to 5 carbon atoms, M is a counterion, and r is a number of 1 to 3. ]

In the above formula (4), R ¹¹ is preferably a linear or branched alkyl group having 1 to 3 carbon atoms.
In the formula (4), M is preferably hydrogen ion, alkali metal ion, alkaline earth metal ion, ammonium ion or alkanolamine ion, and more preferably hydrogen ion or alkali metal ion.
In the formula (4), r is a number of 1 to 3, and a number of 1 or 2 is preferable. When r is 2 or more, a plurality of R ^11s may be the same or different from each other.

Examples of the component (B) include cumene sulfonic acid, xylene sulfonic acid, toluene sulfonic acid and salts thereof.
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 salt and diethanolamine salt, and the like.
The toluene sulfonic acid, cumene sulfonic acid, and salts thereof may be any of the o-form, m-form, and p-form triisomers, respectively, and the p-form is preferable because they can be easily obtained. As the xylene sulfonic acid and a salt thereof, m-xylene sulfonic acid and a salt thereof are preferable.

As the component (B), any one of them may be used alone, or two or more of them may be used in combination.
The content of the component (B) is preferably 0.1 to 4% by mass, more preferably 0.3 to 2% by mass, still more preferably 0.5 to 1% by mass, based on the total mass of the liquid detergent. .. When the content of the component (B) is at least the lower limit of the above-mentioned preferable range, the appearance stability of the liquid detergent is likely to be enhanced. When the content of the component (B) is not more than the upper limit value of the above-mentioned preferable range, the viscosity of the liquid detergent does not become too low and it becomes easy to adjust to an appropriate range.

<Component (C)>
The component (C) is not particularly limited, and examples thereof include an anionic surfactant commonly used in detergents for textile products and the like.
The component (C) of the present invention is separate from the component (B), and is a component added to the liquid detergent separately from the component (B).
Examples of the component (C) include linear alkylbenzene sulfonic acid or a salt thereof; α-olefin sulfonic acid salt; linear or branched alkyl sulfate ester salt; alkyl ether sulfate ester salt or alkenyl ether sulfate ester salt; alcan sulfone. Acids; α-Sulfonic acid ester salts; Sulfonic acid types such as fatty acids or salts thereof, alkyl ether carboxylates, polyoxyalkylene ether carboxylates, alkyl (or alkenyl) amide ether carboxylates, acylamino carboxylates, etc. Anionic surfactants; Phosphate-type anionic surfactants such as alkyl phosphates, polyoxyalkylene alkyl phosphates, polyoxyalkylene alkylphenyl phosphates, glycerin fatty acid ester monophosphates, etc. Can be 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 salt and diethanolamine salt, and the like.

Among the above, as the linear alkylbenzene sulfonic acid or a salt thereof, those having 8 to 16 carbon atoms of the linear alkyl group are preferable, and those having 10 to 14 carbon atoms are particularly preferable.
The α-olefin sulfonate is preferably one having 10 to 20 carbon atoms.
The alkyl sulfate ester salt preferably has 10 to 20 carbon atoms.
The alkyl ether sulfate or alkenyl ether sulfate is a polyoxyethylene alkyl ether having a linear or branched alkyl group or alkenyl group having 10 to 20 carbon atoms and having an average of 1 to 10 mol of ethylene oxide added. Sulfate salts or polyoxyethylene alkenyl ether sulfate ester salts are preferable.
As the alkane sulfonate, a secondary alkane sulfonate having an alkyl group having 10 to 20 carbon atoms, preferably 14 to 17 carbon atoms is preferable.
As the α-sulfofatty acid ester salt, an α-sulfofatty acid ester salt having 10 to 20 carbon atoms is preferable.
As the fatty acid or a salt thereof, a fatty acid having 10 to 20 carbon atoms or a salt thereof is preferable.

Among these, it is preferable to use an alkane sulfonate (hereinafter, may be referred to as (C1) component) as the component (C) from the viewpoint that the effect of preventing recontamination of the liquid detergent and the appearance stability are easily enhanced. .. Further, from the viewpoint that the viscosity of the liquid detergent can be appropriately increased and good appearance stability can be easily obtained, the component (C) is a linear alkylbenzene sulfonic acid or a salt thereof (hereinafter referred to as a component (C2)). There is) is preferable. Further, since it is easy to obtain good anti-recontamination property and appearance stability, and it is easy to increase the viscosity of the liquid detergent appropriately, the component (C1) and the component (C2) are used as the component (C). It is preferable to use them together.

As the component (C), any one of them may be used alone, or two or more of them may be used in combination.
The content of the component (C) is preferably 0.1 to 5% by mass, more preferably 0.1 to 3% by mass, still more preferably 0.1 to 2% by mass, based on the total mass of the liquid detergent. .. When the content of the component (C) is at least the lower limit of the above-mentioned preferable range, the recontamination prevention property is likely to be enhanced. In addition, the viscosity of the liquid detergent is appropriately increased, and it becomes easy to obtain a suitable viscosity (for example, 10 to 300 mPa · s) when the liquid detergent is used for coating and cleaning. When it is not more than the upper limit value of the above preferable range, good appearance stability is likely to be obtained.

The mass ratio of the component (C2) to the component (C) [mass content of the component (C2) / (C)] from the viewpoint that the viscosity of the liquid detergent can be appropriately increased and that good appearance stability can be easily obtained. ) The content mass of the component, hereinafter also referred to as “C2 / C ratio]] is preferably more than 0 and 0.5 or less, more preferably 0.05 to 0.3, and further preferably 0.1 to 0.2.
Further, from the viewpoint that the viscosity of the liquid detergent can be appropriately increased and good appearance stability can be easily obtained, the mass ratio of the component (C2) to the component (C1) [mass content of the component (C2) / The content mass of the component (C1), hereinafter also referred to as "C2 / C1 ratio". ] Is more than 0 and 0.5 or less, more preferably 0.05 to 0.3, and even more preferably 0.1 to 0.2.

The total content of the component (A) and the component (C) is preferably 0.1 to 12% by mass, more preferably 0.5 to 10% by mass, and 1 to 8% by mass with respect to the total mass of the liquid detergent. % Is more preferable. When the total content of the component (A) and the component (C) is in the above-mentioned preferable range, the effects of the present invention (deodorant effect, recontamination prevention effect and appearance stability) can be easily obtained in a well-balanced manner.

Mass ratio of component (A) to component (C) [Mass content of component (A) / mass content of component (C), hereinafter also referred to as "A / C ratio". ] Is preferably 0.05 to 4, more preferably 0.1 to 3, and even more preferably 0.3 to 2.
When the A / C ratio is within the above-mentioned preferable range, it becomes easy to adjust the viscosity of the liquid detergent to the suitable range. Further, when the A / C ratio is at least the above lower limit value, a good deodorizing effect can be easily obtained. When the A / C ratio is not more than the upper limit value, a good recontamination prevention effect can be easily obtained.

Mass ratio of component (B) to component (C) [Mass content of component (B) / mass content of component (C), hereinafter also referred to as "B / C ratio". ] Is preferably 0.1 to 4, more preferably 0.1 to 2, and even more preferably 0.2 to 1. When the B / C ratio is in the above-mentioned preferable range, the appearance stability of the liquid detergent is likely to be enhanced.

Mass ratio of component (A) to component (B) and component (C) [Mass content of component (A) / total mass content of component (B) and component (C), hereinafter also referred to as "A / (B + C) ratio" Say. ] Is preferably 0.1 to 2.5, more preferably 0.3 to 2, and even more preferably 0.5 to 1. When it is in the above-mentioned preferable range, it becomes easy to adjust the viscosity of the liquid detergent in a suitable range. Further, the appearance stability and deodorant effect of the liquid detergent can be easily enhanced.

<Solvent>
The liquid detergent of the present invention preferably contains water as a solvent from the viewpoints of ease of handling during production, solubility in water during use, and the like. The content of water in the liquid detergent is not particularly limited, but in the case of a liquid detergent filled in a container such as a pouch or a bottle, 50 to 99% by mass is preferable with respect to the total mass of the liquid detergent, and 60. ~ 98% by mass is more preferable, and 70 to 97% by mass is further preferable. Further, in the case of a liquid detergent enclosed in a tablet-type detergent covered with a water-soluble film, the content of water in the liquid detergent is preferably 0 to 40% by mass with respect to the total mass of the liquid detergent. , 0% by mass and 30% by mass or less is more preferable, and 5 to 20% by mass is further preferable.

<Other ingredients>
The liquid detergent of the present invention may contain other components usually used for liquid detergents in addition to the above components (A) to (C).
Examples of other components include surfactants other than the components (A) and (C), hydrogen peroxide, bleach activators, chelating agents, radical trapping agents, solvents, inorganic salts, boric acid compounds, and polyol compounds. , Fragrances, antibacterial agents, pH adjusters and the like.

As the surfactant other than the above-mentioned component (A) and component (C), a nonionic surfactant, a cationic surfactant, and an amphoteric surfactant can be blended.
Examples of the nonionic surfactant include a polyoxyalkylene type nonionic surfactant obtained by adding an alkylene oxide to a higher alcohol, an alkylphenol, a higher fatty acid, a higher fatty acid alkyl ester or a higher amine, a polyoxyethylene polyoxypropylene block copolymer, and a fatty acid alkanol. Examples thereof include amines, fatty acid alkanolamides, polyhydric alcohol fatty acid esters or alkylene oxide adducts thereof, alkylene oxide adducts of hardened castor oil, sugar fatty acid esters, N-alkyl polyhydroxy fatty acid amides, and alkyl glycosides.
Examples of the cationic surfactant include alkyltrimethylammonium salt, dialkyldimethylammonium salt, alkylbenzyldimethylammonium salt, and alkylpyridinium salt.
Amphoteric surfactants include alkylbetaine type, alkylamide betaine type, imidazoline type, alkylaminosulfonic acid type, alkylaminocarboxylic acid type, alkylamidecarboxylic acid type, amide amino acid type, phosphoric acid type and the like. Can be mentioned.

In the liquid detergent of the present invention, the total mass of the surfactant is preferably 12% by mass or less, more preferably 10% by mass or less, and 8% by mass, based on the total mass of the liquid detergent. It is more preferably% or less. By containing the components (A) to (C), the liquid detergent of the present invention is good even when the total mass of the surfactant in the liquid detergent is set to the above upper limit or less. A deodorant effect and a recontamination prevention effect can be obtained.

The liquid detergent of the present invention may contain hydrogen peroxide. When the liquid detergent contains hydrogen peroxide, bleaching performance is imparted.
When the liquid detergent of the present invention contains hydrogen peroxide, the content of hydrogen peroxide is preferably 0.1 to 10% by mass, preferably 0.5 to 6% by mass, based on the total mass of the liquid detergent. Is more preferable, and 1 to 6% by mass is further preferable. When the content of hydrogen peroxide is at least the above-mentioned preferable lower limit value, a good bleaching effect can be easily obtained. When the content of hydrogen peroxide is not more than the above-mentioned preferable upper limit value, the stability of the liquid detergent with time is likely to be enhanced.

Examples of the chelating agent include aminocarboxylic acids such as ethylenediamine tetraacetic acid, nitrilotriacetic acid, glycolethylenediamine hexaacetic acid, β-alanine diacetic acid, aspartate diacetic acid, methylglycine diacetic acid, and iminodisuccinic acid, or salts thereof; 1-hydroxyethane-1. , 1-diphosphonic acid, ethane-1,1-diphosphonic acid, ethane-1,1,2-triphosphonic acid, hydroxyetane-1,1,2-triphosphonic acid, ethane-1,2-dicarboxy-1,2 -Diphosphonic acid, hydroxymethanephosphonic acid, ethylenediaminetetra (methylenephosphonic acid), nitrilotri (methylenephosphonic acid), 2-hydroxyethyliminodi (methylenephosphonic acid), hexamethylenediaminetetra (methylenephosphonic acid), diethylenetriaminepenta (methylene) Phosphonates) and other organic phosphonic acids or salts thereof; examples thereof include organic acids such as diglycolic acid, citric acid, tartaric acid, oxalic acid, gluconic acid and salts thereof.
When the liquid detergent of the present invention contains a chelating agent, the content of the chelating agent is preferably 0.1 to 10% by mass, more preferably 0.2 to 4% by mass, based on the total mass of the liquid detergent. It is preferable, and 0.5 to 2% by mass is more preferable.

Examples of the antibacterial agent include diclosan, triclosan, bis- (2-pyridylthio-1-oxide) zinc, polyhexamethylene biguanide hydrochloride, 8-oxyquinolin, polylysine and the like.
When the liquid detergent of the present invention contains an antibacterial agent, the content of the antibacterial agent is preferably more than 0% by mass and 3% by mass or less, preferably 0.001 to 1% by mass, based on the total mass of the liquid detergent. More preferably, 0.005 to 0.5% by mass is further preferable, and 0.01 to 0.3% by mass is particularly preferable.

Examples of the pH adjuster include hydrochloric acid, sulfuric acid, phosphoric acid, sodium hydroxide, potassium hydroxide, monoethanolamine, diethanolamine, triethanolamine, ammonia and the like.

The pH of the liquid detergent of the present invention at 25 ° C. is pH 2 to 6, more preferably pH 2 to 4. When the pH of the liquid detergent is at least the above lower limit value, the appearance stability of the liquid detergent is likely to be enhanced, and a liquid detergent having an appropriate viscosity can be easily obtained. When the pH of the liquid detergent is not more than the above upper limit value, it becomes easy to obtain a liquid detergent having an appropriate viscosity, and it becomes easy to enhance the deodorizing effect, particularly the deodorizing effect on the ammonia odor.
The pH of the liquid detergent in the present invention at 25 ° C. is measured by adjusting the sample to 25 ° C. and using a pH meter (for example, using the product name "HM-30G" manufactured by DKK-TOA CORPORATION) or the like. Indicates a value.

The viscosity of the liquid detergent of the present invention at 25 ° C. is preferably 10 to 300 mPa · s, more preferably 25 to 300 mPa · s. When the viscosity is within the above-mentioned preferable range, it becomes easy to measure the liquid detergent with a measuring cap or the like. Further, when used for coating and cleaning, it becomes easy to apply a liquid detergent to textile products and the like.
The viscosity of the liquid detergent in the present invention at 25 ° C. indicates a value measured by adjusting the sample to 25 ° C. and using a B-type viscometer (manufactured by TOKIMEC) (example of measurement conditions: rotor No. 2. Measure the viscosity at 60 rpm and 1 minute after the start of rotation).

<Manufacturing method of liquid detergent for textile products>
In the liquid detergent of the present invention, for example, the above-mentioned components (A) to (C) and, if necessary, an optional component are dissolved in water as a solvent, and the pH is adjusted to a predetermined pH using a pH adjuster. Can be manufactured by.

The liquid detergent of the present invention can be contained in a commonly used container. Such containers include, for example, a nozzle-type container or an inner plug-type container equipped with a measuring cap, a squeeze container or a pump container equipped with an automatic measuring mechanism or a simple measuring mechanism, a trigger container or a squeeze for spraying liquid or applying in a foam shape. Examples include containers, coating containers having a coating surface on which liquid is applied, refill containers (pouches, thin-walled bottles, refill bottles, etc.).

<How to use liquid detergent for textile products>
Examples of the method of using the liquid detergent of the present invention include a method of adding the liquid detergent to water together with the object to be washed at the time of washing, a method of dissolving the liquid detergent in water in advance and immersing the object to be washed in the water. Alternatively, a liquid detergent may be applied to the object to be washed, left for a certain period of time, and then normal washing may be performed.
The cleaning target of the liquid detergent of the present invention is not particularly limited, and examples thereof include clothing, cloth, curtains, and sheets.

As described above, since the laundry detergent of the present invention contains the components (A) to (C) and has a pH within a predetermined range, it has a deodorizing effect, a recontamination prevention effect, and appearance stability. Excellent for.

Hereinafter, the present invention will be described in more detail with reference to Examples, but the present invention is not limited to these Examples. In this embodiment, "%" indicates "mass%" unless otherwise specified.
The raw materials used in this example are as follows.

<Component A>
A-1: Amidopropyl dimethylamine laurate oxide, manufactured by Clariant AG, trade name "GENAMINOX AP". R ⁸ = linear alkyl group having 11 carbon atoms, R ⁹ = methyl group, R ¹⁰ = methyl group, q = 3 in the general formula (3).
A-2: n-dodecyldimethylamine oxide, manufactured by Lion Axo Co., Ltd., trade name "Alomox DM12D-W"; R ⁵ = linear alkyl group having 12 carbon atoms in general formula (2), R ⁶ = methyl Group, R ⁷ = methyl group.

<B component>
B-1: Sodium p-cumene sulfonate, manufactured by TAYCA CORPORATION, trade name "TAYCA TOX N5040".
B-2: Sodium m-xylene sulfonate, manufactured by Hokusei Kogyo Co., Ltd., trade name "SXA-60".
B-3: Sodium p-toluenesulfonate, manufactured by Kyowa Hakko Kogyo Co., Ltd., trade name "PTS acid".

<C component>
C-1: Secondary sodium alkane sulfonate, manufactured by Clariant Japan, trade name "SAS30".
C-2: Linear alkyl (10 to 14 carbon atoms) sodium benzenesulfonate, manufactured by Lion Corporation, trade name "Rypon LS250".
C-3: Palm fatty acid, manufactured by NOF CORPORATION, trade name "Palm fatty acid".

<B'component>
B'-1: Butylcarbitol, manufactured by Nippon Emulsifier Co., Ltd.
B'-2: Ethanol, manufactured by Japan Alcohol Trading Co., Ltd., trade name "Specific alcohol 95 degree synthesis".

<Arbitrary ingredient>
-Hydrogen peroxide, 35% industrial hydrogen peroxide, manufactured by Mitsubishi Gas Chemical Company.
Nonionic surfactant a: A mixture of a 12-carbon alcohol (C12OH) and a 14-carbon alcohol (C14OH) (mass ratio C12OH / C14OH = 75/25) with an average of 6 mol of ethylene oxide added. , Made by Lion Co., Ltd., trade name "Leox CL-60".
Nonionic surfactant b: A secondary alcohol having 12 carbon atoms and a secondary alcohol having 14 carbon atoms to which ethylene oxide equivalent to 7 mol is added, manufactured by Nippon Shokubai Co., Ltd., trade name "Softanol 70". A compound represented by the following general formula (n1), in which R ²¹ = a secondary alkyl group having 12 carbon atoms, a secondary alkyl group having 14 carbon atoms, and s = 7.
R ^21- O- (EO) _s- H ... (n1)
-Nonion surfactant c: Blocks 8 mol of ethylene oxide, 2 mol of propylene oxide, and 8 mol of ethylene oxide in this order in natural alcohol (12 alcohols by mass / 14 alcohols = 7/3). Nonionic surfactant obtained by addition. A compound represented by the following general formula (n2), in which R ²² = an alkyl group having 12 carbon atoms and an alkyl group having 14 carbon atoms, t = 8, u = 2, and v = 8.
R ^22- O- (EO) _t- (PO) _u- (EO) _v- H ... (n2)
-Chelating agent a: 1-hydroxyethane-1,1-diphosphonic acid, manufactured by Rhodia, trade name "BRICUEST ADPA".
-Chelating agent b: Citric acid, manufactured by Kanto Chemical Co., Inc., reagent "kuenic acid".
-Radical trapping agent: p-methoxyphenol, manufactured by Kawaguchi Chemical Industry Co., Ltd., trade name "MQ-F".
-Solvent a: Diethylene glycol monophenyl ether, manufactured by Nippon Emulsifier Co., Ltd., trade name "PhDG (90)".
-Solvent b: Propylene glycol, manufactured by Asahi Glass Co., Ltd.
-Solvent c: Glycerin, manufactured by Lion Oreo Chemical Co., Ltd.
-Fragrance: The fragrance composition a shown in Tables 7 to 14 of JP-A-2003-268398.
-Antibacterial agent: Poly (hexamethylene biguanide) hydrochloride, manufactured by Arch Chemicals Japan Co., Ltd., trade name "Proxel IB".
-PH adjuster: Sulfuric acid (manufactured by Toho Zinc Co., Ltd.), sodium hydroxide (manufactured by Tsurumi Soda Co., Ltd.).
-Solvent: purified water.

<Examples 1 to 24, Comparative Examples 1 to 6>
<Manufacturing of liquid detergents for textile products>
According to the composition shown in Tables 1 to 3, the component (A), the component (B) or the component (B'), the component (C), and an optional component (excluding water and a pH adjuster) are added to water and mixed. did. This was adjusted to the pH value in the table with a pH adjuster to obtain the liquid detergents of Examples 1 to 24 and Comparative Examples 4 to 6. Example 24 is a liquid detergent enclosed in a tablet-type cleaning agent covered with a water-soluble film.
Further, the liquid detergents of Comparative Examples 1 to 3 were obtained in the same manner as above except that any of the components (A) to (C) was not added to water.
Tables 1 to 3 show the compositions (blending components, content (mass%)) of the obtained liquid detergents of each example.
If there is a blank compounding ingredient in the table, that compounding ingredient is not blended.
In the table, the content of the compounding component indicates the net conversion amount.
The "appropriate amount" indicating the content of the pH adjuster is the total amount (0.) of the pH adjuster (sulfuric acid or sodium hydroxide) added to bring the pH (25 ° C.) of the liquid detergent to the pH value in the table. 01 to 1% by mass).
"Balance" indicating the content of purified water means the balance added so that the total amount (% by mass) of all the components contained in the liquid detergent is 100% by mass.
In the table, "B / C ratio" of Comparative Examples 5 and 6 indicates the mass ratio of the component (B') to the component (C).

The deodorant effect (deodorant effect (1), deodorant effect (2)), recontamination prevention property, and appearance stability of the liquid detergents of each example were evaluated as follows. The evaluation results are shown in Table 1.
However, Examples 2, 4, 7 to 10, 12, 22, 23 , and 24 are reference examples.

[Evaluation of deodorant effect (1)]
Approximately 100 g of cotton towel used for one week at home and approximately 700 g of cotton-skinned shirt worn by men in their 20s and 30s for one day (hereinafter, the cotton towel and cotton-skinned shirt are collectively referred to as "clothing"). , Was put into a fully automatic electric washing machine (JW-Z23A manufactured by Haier). Next, 10 mL of the liquid detergent of each example was put into the washing machine, and washing, rinsing, and dehydration were performed in the standard course of the washing machine to wash the clothes. The washed clothes were dried all day and night. Five panelists, male and female, scored the "unpleasant odor" of dried clothes according to the following six criteria. The average value of the scoring results of 5 persons was classified into the following evaluation criteria, and the deodorant effect (1) on clothing was evaluated. Passed △, ○, ◎ (judgment criteria)
0 points: Odorless.
1 point: Smell that can be finally detected.
2 points: An odor that tells you what the odor is.
3 points: An easily perceptible odor.
4 points: Strong odor.
5 points: Strong odor.
(Evaluation criteria)
⊚: 0 points or more and less than 1.5 points.
◯: 1.5 points or more and less than 2.5 points.
Δ: 2.5 points or more and less than 3 points.
X: 3 points or more and 5 points or less.

[Deodorant effect (2): Deodorization evaluation of ammonia odor]
[Evaluation of deodorant effect (1)] 5 mL of 0.1N aqueous ammonia solution was applied to the clothes and left for 1 hour. Next, a cleaning solution in which 10 mL of the liquid detergent of each example was dispersed in 5 L of tap water was prepared, and the clothes were immersed in the cleaning solution and left to stand for 2 hours. Then, the clothes were taken out from the washing liquid and put into a fully automatic electric washing machine (JW-Z23A manufactured by Haier) for dehydration. Five panelists, including men and women, scored and classified the "ammonia odor" of clothes after dehydration in the same manner as [evaluation of deodorant effect (1)], and evaluated the deodorant effect (2) of ammonia odor. △, ○, and ◎ were accepted.

[Evaluation of anti-recontamination property]
0.3 mL of the liquid detergent of each example was dispersed in 900 mL (25 ° C) of 3 ° DH hard water to prepare a cleaning liquid. The cleaning solution and the following object to be washed were placed in a Terg-o-tometer (manufactured by UNITED TESTES TESTING), and the object to be washed was washed at 120 rpm and 25 ° C. for 10 minutes (cleaning treatment).
(Washed object)
-Cotton recontamination judgment cloth: Cotton knitted fabric (manufactured by Tanito Shoten Co., Ltd.) 5 x 5 cm ... 5 sheets.
-Wet artificial contaminated cloth: manufactured by the Washing Science Association (dirt components: oleic acid 28.3%, triolein 15.6% by mass, cholesterol oleate 12.2% by mass, liquid paraffin 2.5% by mass, squalane 2. 5% by mass, 1.6% by mass of cholesterol, 7.0% by mass of gelatin, 29.8% by mass of mud, 0.5% by mass of carbon black) ... 20 sheets.
-A skin shirt (manufactured by BVD) cut to a size of about 3 cm x 3 cm. A skin shirt with an amount of 20 times the bath ratio was used.
After dehydrating the object to be washed subjected to the above washing treatment for 1 minute, it was rinsed with 900 mL of 3 ° DH hard water at 25 ° C. for 3 minutes at 120 rpm and 25 ° C. (rinsing treatment). This rinsing process was repeated twice. A predetermined amount of softener was added in the second rinsing treatment. As the softener, 0.21 mL of "Scent and Deodorant Soflan" (trade name, manufactured by Lion Corporation) was used. After dehydrating the rinsed object for 1 minute, a cotton recontamination determination cloth was sandwiched between filter papers and dried with an iron (drying treatment).
The above-mentioned washing treatment, rinsing treatment, and drying treatment were repeated three times (the above is the washing treatment). Using a reflectance meter (spectrophotometric color difference meter SE2000, manufactured by Nippon Denshoku Kogyo Co., Ltd.), the reflectance of the cotton recontamination judgment cloth before and after the washing treatment is measured to calculate the Z value, and the Z value is calculated from the Z value before the washing treatment. ΔZ, which is the value obtained by subtracting the Z value after the washing treatment, was obtained. The average value of ΔZ of the five cotton recontamination determination cloths was classified into the following evaluation criteria, and the recontamination prevention effect was evaluated.
(Evaluation criteria)
◯: ΔZ is less than 5 Δ: ΔZ is 5 or more and less than 9 ×: ΔZ is 9 or more

[Evaluation of appearance stability]
100 mL of the liquid detergent for textile products of each example was collected in a transparent glass bottle (wide-mouth standard bottle PS-No. 11) and sealed with the lid closed, which was used as a measurement sample. The appearance after adjusting the liquid temperature of the measurement sample to 25 ° C. and allowing it to stand for 30 minutes (immediately after compounding) in a constant temperature bath, and the appearance after adjusting the liquid temperature of the measurement sample to 25 ° C. and allowing it to stand for 24 hours. The appearance stability was evaluated by visual observation and the following criteria. △ and ○ were accepted.
(Judgment criteria)
◯: Both immediately after compounding and after standing for 24 hours are transparent.
Δ: It is transparent immediately after compounding, but slightly turbid after being allowed to stand for 24 hours.
X: Clear turbidity or precipitation is observed either immediately after compounding or after standing for 24 hours.

From the results shown in Tables 1 to 3, it was confirmed that the liquid detergents of Examples 1 to 24 to which the present invention was applied were excellent in deodorant effect, recontamination prevention property and appearance stability.
On the other hand, the liquid detergent containing no component (A) (Comparative Example 1) did not have a sufficient deodorizing effect.
The liquid detergent (Comparative Example 2) containing no component (C) did not have sufficient anti-recontamination properties.
The liquid detergent having a pH exceeding the range of the present invention (Comparative Example 4) had a deodorizing effect (1) of ○, but a deodorizing effect (2) of ×, and the deodorizing effect on the ammonia odor was sufficient. It wasn't.
The liquid detergent (Comparative Example 3) containing no component (B) and the liquid detergent using the component (B') instead of the component (B) (Comparative Examples 5 and 6) are inferior in appearance stability. Met. Therefore, the deodorant effect and recontamination prevention property were not evaluated.
From the above results, it was confirmed that the liquid detergent to which the present invention was applied was excellent in deodorant effect, recontamination prevention property and appearance stability.

Claims (7)

Component (A): Semi-polar surfactant 0.1 to 5% by mass,
Component (B): Alkylbenzene sulfonic acid having 1 to 5 carbon atoms or a salt thereof, and
Component (C): Contains one or more anionic surfactants selected from sulfonic acid type anionic surfactants and sulfate ester type anionic surfactants (however, component (B) is not included).
The mass ratio represented by the component (A) / (component (B) + component (C)) is 0.5 to 2.5.
A liquid detergent for textile products, characterized by having a pH of 2 to 6 at 25 ° C. The liquid detergent for textile products according to claim 1, wherein the mass ratio represented by the component (B) / the component (C) is 0.1 to 4. The textile product according to claim 1 or 2, wherein the component (B) is one or more compounds selected from cumene sulfonic acid, xylene sulfonic acid, toluene sulfonic acid and salts thereof. Liquid cleaning agent. The liquid detergent for textile products according to any one of claims 1 to 3, wherein the content of the component (B) is 0.1 to 4% by mass. The liquid detergent for textile products according to any one of claims 1 to 4, wherein the content of the component (C) is 0.1 to 5% by mass. The liquid detergent for textile products according to any one of claims 1 to 5, further comprising hydrogen peroxide. The liquid detergent for textile products according to any one of claims 1 to 6, wherein the total content of the surfactant is 12% by mass or less.