JP2017008136A - Liquid detergent composition for clothing - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a liquid detergent composition for clothing excellent in detergency to a sebum stain.SOLUTION: There is provided a liquid detergent composition having (a) component of 10 to 30 mass%, mass ratio of (b) component/(a) component of 0.1 to 2.5, (c) component of 0.5 to 4 mass% as sulfuric acid ion and (d) component of 1 to 7 mass%. (a) component:a nonionic surfactant represented by the following formula, R1(CO)mO-(A1O)n-R2, where R1 is a C9 to 16 primary aliphatic hydrocarbon group, R2 is H or a methyl group, m is 0 or 1, A1O is one or more kind selected from an ethylene oxide group or a propylene oxide group, n is 5 to 20. (b) component:one or more kind of anionic surfactant selected from a surfactant having C10 to 18 hydrocarbon group and a sulfate base or a surfactant having C10 to 18 hydrocarbon group and a sulfate base. (c) component:a compound capable of donating a sulfate ion. (d) component:C7 to 9 aromatic sulfonate or a salt thereof.SELECTED DRAWING: None

Description

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

Consumers are particularly conscious of removing dirt on their collars and sleeves as an evaluation of their finished laundry. It is known that the dirt on the collar and the sleeve contains a lot of sebum.
In addition, compositions containing inorganic salts are known as liquid cleaning compositions for clothing. For example, Patent Document 1 describes a liquid detergent composition that contains a nonionic surfactant, a fatty acid, a chelating agent, an enzyme, and an enzyme stabilizer, has excellent detergency for socks and dirt, and has excellent enzyme stability. ing. Patent Document 2 discloses a multiphase liquid detergent composition containing a nonionic surfactant mixture and a water-soluble inorganic salt. Patent Document 3 contains polyoxyethylene alkyl ether sulfate, linear alcohol alkoxylate, branched alcohol ethoxylate, and water-soluble inorganic salt, and has excellent viscosity increase and low-temperature storage stability due to inorganic salt. A liquid detergent is disclosed. Patent Document 4 discloses a liquid detergent composition for clothing containing a hydrotrope such as para-toluenesulfonic acid for improving storage stability.

JP 2009-138056 A JP 2005-82610 A JP 2014-62231 A JP 2012-233144 A

  The present invention provides a liquid detergent composition for clothing that is excellent in detergency against sebum soil, excellent in appearance, and capable of selecting a composition excellent in low-temperature storage stability from a wide pH range.

  As a result of repeated studies from the viewpoint of enhancing the detergency of a liquid cleaning composition for clothing containing a nonionic surfactant as a main component of the cleaning base, the present inventors constitute a liquid cleaning composition. Of various components, attention was paid to specific sulfates and aromatic sulfonic acids or salts thereof. A nonionic surfactant is used in combination with a main cleaning base and a certain amount of a specific sulfate and aromatic sulfonic acid or salt thereof to enhance the detergency of the nonionic surfactant in the cleaning liquid, and sebum It has been found to promote the cleaning of dirt. The reason is not necessarily clear, but it is thought that the critical micelle formation concentration (cmc) of the nonionic surfactant is reduced by adding a specific sulfate in water, and the detergency of the sebum stain is improved. It is done. In addition, by adding a certain amount of a specific aromatic sulfonic acid or salt thereof, the hydrophilicity of the surfactant skeleton is increased, and the sebum dirt adsorbed by the nonionic surfactant can be easily dispersed in the washing water. It is considered that the cleaning property of dirt is further improved. An aromatic sulfonic acid such as p-toluenesulfonic acid or a salt thereof is conventionally known as a hydrotrope agent to improve the storage stability of a liquid cleaning composition. Surprisingly, when used in combination with sulfate, the sebum stains are more easily cleaned.

In addition, by using polyoxyalkylene alkyl ether sulfate and alkylbenzene sulfonate together, the stable pH spreads to the neutral side even when using a specific sulfate, even at low temperature storage, and low temperature storage from a wide pH range. It has been found that a composition having excellent stability can be selected.
Furthermore, as described in Patent Document 3, the present invention is not limited to the use of specific nonionic surfactants for the purpose of improving low-temperature storage stability. The invention has been found to be advantageous.

The present invention has been completed based on these findings.
The present invention comprises the following component (a), component (b), component (c), component (d) and water:
(A) The content of the component is 10% by mass or more and 30% by mass or less,
The mass ratio between the content of the component (a) and the content of the component (b) is [(b) component content] / [(a) component content] and is 0.1 to 2.5. And
(C) The content of the component is 0.5 mass% or more and 4 mass% or less,
(D) The content of the component is 1% by mass or more and 7% by mass or less,
The present invention relates to a liquid cleaning composition for clothing.
(A) Component: Nonionic surfactant represented by the following general formula (a1) R ¹ (CO) _m O— (A ¹ O) _n —R ² (a1)
[Wherein, R ¹ is a primary aliphatic hydrocarbon group having 9 to 16 carbon atoms, R ² is a hydrogen atom or a methyl group, CO is a carbonyl group, and m is 0 or 1. The A ¹ O group is one or more groups selected from an ethyleneoxy group and a propyleneoxy group, n is an average added mole number, and is a number of 5 or more and 20 or less. ]
(B) Component: From an anionic surfactant having a hydrocarbon group having 8 to 18 carbon atoms and a sulfonate group, and an anionic surfactant having a hydrocarbon group having 10 to 18 carbon atoms and a sulfate ester base One or more selected anionic surfactant (c) component: salt represented by the following general formula (c1)
(M ^{x +} ) _y SO ₄ ²⁻ (c1)
[Wherein, (M ^{x +} ) is one or more ions selected from sodium ions, potassium ions, magnesium ions, ammonium ions, and alkanol ammonium ions having 2 to 6 carbon atoms. x is the valence of the ion and is a number of 1 or 2. When x is 1, y is a number of 2, and when x is 2, y is a number of 1. ]
(D) Component: Aromatic sulfonic acid having 7 to 9 carbon atoms in total or a salt thereof

  According to the present invention, there is provided a liquid detergent composition for clothing that has excellent detergency against sebum stains, has a transparent appearance, and has an excellent appearance and a composition having excellent low-temperature storage stability from a wide pH range. Is done.

Hereinafter, the liquid cleaning composition for clothing of the present invention will be described in detail.
<(A) component>
The component (a) is a nonionic surfactant represented by the following general formula (a1).
^{_{R 1 (CO) m O- (}} A 1 O) n -R 2 (a1)
[Wherein, R ¹ is a primary aliphatic hydrocarbon group having 9 to 16 carbon atoms, R ² is a hydrogen atom or a methyl group, CO is a carbonyl group, and m is 0 or 1. The A ¹ O group is one or more groups selected from an ethyleneoxy group and a propyleneoxy group, n is the average number of moles added, and is a number from 2 to 30. ]

In general formula (a1), R ¹ is a primary aliphatic hydrocarbon group having 9 to 16 carbon atoms. Examples of the aliphatic hydrocarbon group include an alkyl group and an alkenyl group. R ¹ is preferably a primary aliphatic hydrocarbon group having 11 or more carbon atoms from the viewpoint of further improving the sebum soil detergency, and a primary fat having 14 or less carbon atoms in terms of low-temperature storage stability. A group hydrocarbon group is preferred. The proportion of aliphatic hydrocarbon groups having 11 or more and 14 or less carbon atoms in the total amount of R ¹ is preferably 60% by mass or more, from the viewpoint of further improving the cleanability of sebum soil and improving low-temperature storage stability. More than mass% is more preferable, and 100 mass% or less is preferable, and 100 mass% may be sufficient. Examples of the primary aliphatic hydrocarbon group for R ¹ include a group selected from a primary alkyl group and a primary alkenyl group. A primary alkyl group is preferred, and a primary direct hydrocarbon group is preferred. A chain alkyl group is more preferred.

In general formula (a1), R ² is a hydrogen atom or a methyl group. R ² is preferably a hydrogen atom from the standpoint of protein stain detergency.

  In general formula (a1), m is a number of 0 or 1. M is preferably 0 from the viewpoint of the detergency of protein stains. (C) Even if it contains the specific sulfate which is a component, m is preferably 1 from the viewpoint of good storage stability during low-temperature storage.

In general formula (a1), the A ¹ O group is at least one group selected from an ethyleneoxy group and a propyleneoxy group. From the viewpoint of improving the detergency of sebum soil and improving the low-temperature storage stability, the A ¹ O group is preferably a group containing an ethyleneoxy group.
When the A ¹ O group includes an ethyleneoxy group and a propyleneoxy group, they may be block copolymerization or random copolymerization, but block copolymerization is preferred.

  In general formula (a1), n is an average addition mole number, and is 2 or more and 30 or less. From the viewpoint of further improving the cleanability of sebum soil, n is preferably 3 or more, more preferably 4 or more, and preferably 28 or less, more preferably 26 or less, and even more preferably 24 or less.

<(B) component>
The component (b) includes an anionic surfactant having a hydrocarbon group having 8 to 18 carbon atoms and a sulfonate group, and an anionic surfactant having a hydrocarbon group having 10 to 18 carbon atoms and a sulfate ester base. One or more anionic surfactants selected from
In the present specification, an anionic surfactant having a hydrocarbon group having 8 to 18 carbon atoms and a sulfonate group includes a hydrocarbon group having 10 to 18 carbon atoms as a hydrophobic group and a sulfonate salt as a hydrophilic group. An anionic surfactant having An anionic surfactant having a hydrocarbon group having 10 to 18 carbon atoms and a sulfate ester base is an anionic surfactant having a hydrocarbon group having 10 to 18 carbon atoms as a hydrophobic group and a sulfonate as a hydrophilic group. Refers to ionic surfactant.

  The component (b) comprises an anionic surfactant having a hydrocarbon group having 8 to 18 carbon atoms and a sulfonate group, and an anionic surfactant having a hydrocarbon group having 10 to 18 carbon atoms and a sulfate ester base. It is preferable to include. In that case, (an anionic surfactant having a hydrocarbon group having 8 to 18 carbon atoms and a sulfonate group) / (an anionic surfactant having a hydrocarbon group having 10 to 18 carbon atoms and a sulfate ester base) The mass ratio is preferably 0.1 or more, more preferably 0.2 or more, and preferably 10 or less, more preferably 5 or less.

Examples of the component (b) include one or more anionic surfactants selected from the following (b1) to (b4).
(B1): an alkylbenzene sulfonate having an alkyl group having 10 to 18 carbon atoms (b2): an anionic surfactant represented by the following general formula (2) R ² O— (A ² O) _m —SO ₃ M (2)
[In the formula, R ² is a hydrocarbon group having 10 to 18 carbon atoms, the A ² O group is one or more groups selected from an ethyleneoxy group and a propyleneoxy group, and m is an average added mole number. And the number is 1 or more and 5 or less. M is a counter ion. ]
(B3): sulfate ester salt having a hydrocarbon group having 10 to 18 carbon atoms (b4): α-sulfo fatty acid ester salt having a hydrocarbon group having 8 to 18 carbon atoms

(B1) and (b4) are anionic surfactants having a hydrocarbon group having 8 to 18 carbon atoms and a sulfonate group.
(B2) and (b3) are anionic surfactants having a hydrocarbon group having 10 to 18 carbon atoms and a sulfate ester base.

  (B1) is an alkylbenzene sulfonate having an alkyl group having 10 to 18 carbon atoms. An alkyl group having 10 to 18 carbon atoms means an alkyl group of an alkylbenzene sulfonate and does not include a benzene skeleton. The number of carbon atoms of the alkyl group is preferably 12 or more from the viewpoint of maintaining the sebum dirt cleaning properties. While maintaining the detergency of the liquid detergent composition for clothing of the present invention, the pH range where the low temperature storage stability of the liquid detergent composition for clothes is good extends to the neutral side, that is, the pH is closer to 7. In this respect, the alkyl group preferably has 16 or less carbon atoms.

(B2) is an anionic surfactant represented by the following general formula (2).
^{_{R 2 O- (A 2 O)}} m -SO 3 M (2)
[In the formula, R ² is a hydrocarbon group having 10 to 18 carbon atoms, the A ² O group is one or more groups selected from an ethyleneoxy group and a propyleneoxy group, and m is an average added mole number. And the number is 1 or more and 5 or less. M is a counter ion. ]
In general formula (2), R ² is preferably a hydrocarbon group having 12 or more carbon atoms in terms of improving the detergency of sebum dirt, and having 16 or less carbon atoms in terms of more excellent storage stability at low temperatures. A hydrocarbon group is preferred. In terms of further improving the detergency and storage stability at low temperatures, the content of the hydrocarbon group having 12 or more and 16 or less carbon atoms in R ² is preferably 60% by mass or more, more preferably 70% by mass or more, 80 mass% or more is more preferable. Examples of the hydrocarbon group for R ² include an alkyl group and an alkenyl group, and an alkyl group is preferable.
In General Formula (2), the A ² O group is one or more groups selected from an ethyleneoxy group and a propyleneoxy group. All of the A ² O groups may be ethyleneoxy groups or all propyleneoxy groups. Further, it may contain an ethyleneoxy group and a propyleneoxy group. When it contains an ethyleneoxy group and a propyleneoxy group, it may be included randomly or may be a block. The A ² O group preferably contains an ethyleneoxy group in that the storage stability at a low temperature of the liquid detergent composition for clothing becomes better.
In general formula (2), m is an average addition mole number, and is a number of 1 or more and 5 or less. M is preferably 2 or more in that the storage stability at low temperature is further enhanced. It is preferably 4 or less in terms of higher sebum dirt cleaning properties.
In the general formula (2), examples of the counter ion represented by M include a counter ion selected from an alkali metal ion and an alkanol ammonium ion having 1 to 6 carbon atoms. Examples of alkali metal ions include sodium ions and potassium ions. Examples of the alkanol ammonium ion having 1 to 6 carbon atoms include monoethanol ammonium ion, diethanol ammonium ion, N-methyl ethanol ammonium ion, N-methyl diethanol ammonium ion, and triethanol ammonium ion.

  (B3) is a sulfate ester salt having a hydrocarbon group having 10 to 18 carbon atoms. The number of carbon atoms of the hydrocarbon group is preferably 12 or more from the viewpoint of increasing the detergency, and 16 or less is preferable from the viewpoint of better storage stability at low temperatures. Examples of the hydrocarbon group include aliphatic hydrocarbon groups. More preferably, it is an alkyl group. Examples of the salt include alkali metal salts and alkanol ammonium salts having 1 to 6 carbon atoms. Examples of the alkali metal ion include sodium salt and potassium salt. Examples of the alkanol ammonium salt having 1 to 6 carbon atoms include monoethanol ammonium salt, diethanol ammonium salt, N-methyl ethanol ammonium salt, N-methyl diethanol ammonium salt, and triethanol ammonium salt.

(B4) is an α-sulfo fatty acid ester salt having a hydrocarbon group having 8 to 18 carbon atoms. More specifically, a compound represented by the following general formula (3) is exemplified.
R ³ —CH (COOR ⁴ ) —SO ₃ M (3)
[Wherein, R ³ is a hydrocarbon group having 8 to 18 carbon atoms, R ⁴ is a methyl group or an ethyl group, and M is a counter ion. ]

In the general formula (3), R ³ is preferably a hydrocarbon group of 12 or more from the viewpoint that the detergency is further increased, and a hydrocarbon group of 16 or less is preferable from the viewpoint that the storage stability at low temperature is further increased. Examples of the hydrocarbon group include an alkyl group and an alkenyl group, and an alkyl group is preferable.
In general formula (3), R ⁴ is preferably a methyl group from the viewpoint of improving detergency.
In the general formula (3), examples of the counter ion represented by M include an alkali metal ion and a counter ion selected from an alkanol ammonium ion having 1 to 6 carbon atoms. Examples of the alkali metal include sodium and potassium. Examples of the alkanol ammonium having 1 to 6 carbon atoms include monoethanol ammonium, diethanol ammonium, N-methyl ethanol ammonium, N-methyl diethanol ammonium, and triethanol ammonium.

It is preferable that (b2) component is included as (b) component at the point which the detergency of the liquid cleaning composition for clothes of this invention improves more.
Moreover, it is preferable that (b1) component and / or (b4) component are included as (b) component at the point which the pH range where the storage stability at low temperature spreads to the range close | similar to pH7.
In addition, as the component (b), the component (b2), the component (b1) and the component (b4) are used in that the pH range in which the improvement in detergency and the storage stability at low temperature are good extends to a range closer to pH 7. Are preferably included. In this case, [(b1) component and / or (b4) component] / [(b2) component], which is the mass ratio of the content of component (b1) and / or (b4) and the content of component (b2), is It is preferably 0.2 or more and 5 or less. The mass ratio [(b1) component and / or (b4) component] / [(b2) component] is preferably 0.3 or more in that the pH range with good storage stability at low temperature extends to a range closer to pH 7. 0.4 or more is preferable, and 0.5 or more is preferable. The mass ratio [(b1) component and / or (b4) component] / [(b2) component] is preferably 4 or less, and more preferably 3 or less, from the viewpoint that the detergency is further improved.

<(C) component>
The component (c) is a salt represented by the following general formula (c1). The component (c) has the effect of further improving the cleanability of sebum soil by being used in combination with the component (d) described later.
(M ^{x +} ) _y SO ₄ ²⁻ (c1)
[Wherein, (M ^{x +} ) is one or more ions selected from sodium ions, potassium ions, magnesium ions, ammonium ions, and alkanol ammonium ions having 2 to 6 carbon atoms. x is the valence of the ion and is a number of 1 or 2. When x is 1, y is a number of 2, and when x is 2, y is a number of 1. ]

Examples of the alkanol ammonium ion having 2 to 6 carbon atoms in (M ^{x +} ) in the general formula (c1) include monoethanol ammonium ion, diethanol ammonium ion, triethanol ammonium ion, methyl ethanol ammonium ion, methyl diethanol ammonium ion. Is mentioned.
When (M ^{x +} ) is one or more ions selected from sodium ions, potassium ions, ammonium ions, and alkanol ammonium ions having 2 to 6 carbon atoms, x is 1 and y is 2. . When (M ^{x +} ) is a magnesium ion, x is 2 and y is 1.

(M ^{x +} ) is a sodium ion, a potassium ion, and an alkanolammonium ion having 2 or more and 6 or less carbon atoms in that it has a higher effect of further improving the detergency of sebum soil by using in combination with the component (d) described later. One or more types of ions selected from among them are preferable, one or more types of ions selected from sodium ions and potassium ions are more preferable, and sodium ions are more preferable.

(C) As a preferable salt of a component, 1 or more types of salts chosen from sodium sulfate, potassium sulfate, and a monoethanolammonium sulfate salt are mentioned.
(C) As a more preferable salt of a component, 1 or more types of salts chosen from sodium sulfate and potassium sulfate are mentioned.

  The component (c) can be contained in the composition by blending the salt compound together with other components when preparing the liquid detergent composition for clothing of the present invention. Moreover, the mixture used as the composition of this invention using 1 or more types of alkali agents chosen from sodium hydroxide, potassium hydroxide, magnesium hydroxide, ammonia, and C2-C6 alkanolamine, and a sulfuric acid. By carrying out the neutralization reaction therein, the component (c) can be formed and contained in the composition.

  The component (c) may be one or more compounds selected from sodium sulfate, potassium sulfate, magnesium sulfate, ammonium sulfate, and a salt of sulfuric acid and an alkanolamine having 2 to 6 carbon atoms.

<(D) component>
The component (d) is an aromatic sulfonic acid having a total carbon number of 7 to 9, or a salt thereof. The component (d) is preferably an aromatic sulfonic acid having a total carbon number of 7 to 9 and having an alkyl group having a carbon number of 1 to 3, or a salt thereof, from the viewpoint of further improving the cleaning performance of sebum soil.
Specific examples of the component (d) include one or more compounds selected from p-toluenesulfonic acid, p-cumenesulfonic acid, m-xylenesulfonic acid, and salts thereof. One or more compounds selected from p-toluenesulfonic acid or a salt thereof and p-cumenesulfonic acid or a salt thereof are preferable, more preferably p-toluenesulfonic acid or a salt thereof, in terms of higher sebum soil detergency. It is. Examples of the salt include alkali metal salts and alkanolamine salts having 1 to 3 carbon atoms. Specific examples of the alkali metal salt include sodium salt and potassium salt. Examples of the alkali metal salt having 1 to 3 carbon atoms include monoethanolamine salt, diethanolamine salt, and triethanolamine salt.

<Water>
As water, ion-exchanged water, distilled water, tap water, water containing 1 to 5 mg / kg of sodium hypochlorite, or the like can be used.

<Optional component>
The liquid cleaning composition for clothing of the present invention may contain the following components as optional components.
The liquid detergent composition for clothing of the present invention can contain a fatty acid having 10 to 20 carbon atoms or a salt thereof as the component (e). The component (e) is preferably a fatty acid having 12 or more and 14 or less carbon atoms or a salt thereof from the viewpoint of suppressing foaming of the liquid detergent composition for clothing of the present invention.

  The liquid detergent composition for clothing of the present invention can contain a water-miscible organic solvent containing one or more hydroxyl groups as the component (f). (F) It is preferable to contain a component at the point which can maintain a washability also in a shorter washing time using a washing machine. (F) About a component, water miscibility refers to melt | dissolving 50g or more in 1L of ion-exchange water of 25 degreeC. As the component (f), specifically, (f1) one or more compounds selected from ethanol and 2-propanol, (f2) one or more compounds selected from ethylene glycol, propylene glycol, and hexylene glycol (F3) one or more compounds selected from diethylene glycol monomethyl ether, triethylene glycol monomethyl ether, diethylene glycol monoethyl ether, dipropylene glycol monomethyl ether, dipropylene glycol monoethyl ether, tripropylene glycol monomethyl ether, and diethylene glycol monobutyl ether (F4) 2-phenoxyethanol, diethylene glycol monophenyl ether, and triethylene glycol monophenyl ether One or more compounds.

  Examples of other optional components include polymers having a carboxyl group and enzymes such as protease.

  The liquid cleaning composition for clothing of the present invention may contain an acid agent such as glycolic acid, lactic acid or citric acid, an alkali agent such as sodium hydroxide or an alkanolamine having 2 to 6 carbon atoms as a pH adjuster. it can. Examples of the alkanolamine having 2 to 6 carbon atoms include monoethanolamine, methyldiethanolamine, and triethanolamine.

<Liquid detergent composition for clothing>
In the liquid detergent composition for clothing of the present invention, the content of the component (a) is 10% by mass or more and 30% by mass or less, and 11% by mass or more is preferable from the viewpoint of further improving the cleanability of sebum soil, 12 mass% or more is more preferable, and 13 mass% or more is still more preferable. Even if the component (c) is contained, the content of the component (a) is preferably 28% by mass or less, preferably 25% by mass or less, from the point that the pH is good and the storage stability at low temperature extends to a range closer to 7. Is more preferably 23% by mass or less, still more preferably 20% by mass or less, still more preferably 19% by mass or less, and still more preferably 18% by mass or less.

  In the liquid detergent composition for clothing of the present invention, the mass ratio of the content of the component (a) and the content of the component (b) is [content of the component (b)] / [content of the component (a) The amount] is 0.1 or more and 2.5 or less, preferably 0.12 or more, more preferably 0.15 or more, and still more preferably 0.17 or more, from the viewpoint of improving the detergency of sebum dirt. And preferably 2.2 or less, more preferably 2.0 or less, still more preferably 1.0 or less, still more preferably 0.5 or less, still more preferably 0.45 or less, and even more preferably 0.4 or less. preferable.

  When the liquid detergent composition for clothes of the present invention contains (b1) and / or (b4) as the component (b), the content of the component (b1) and / or the component (b4) and the component (a) The mass ratio of the content of (b) and the total content of component (b) is [(b1) component content + (b4) component content] / [(a) component content + (b) component The content is preferably 0.05 or more and 0.3 or less from the point that even when the component (c) is contained, the pH having good storage stability at low temperature spreads to a range closer to 7. More preferably, 0.07 or more, still more preferably 0.08 or more, still more preferably 0.09 or more, still more preferably 0.28 or less, still more preferably 0.26 or less, and Is more preferably 23 or less, still more preferably 0.20 or less, and 0.16 Lower and more preferably more.

  In the liquid detergent composition for clothing of the present invention, the content of the component (c) is 0.5% by mass or more and 4% by mass or less, and 0.8% by mass or more is from the viewpoint of detergency of sebum dirt. Preferably, 1.0% by mass or more is more preferable, 1.3% by mass or more is more preferable, and from the viewpoint of the appearance of the composition, 3.8% by mass or less is preferable, and 3.6% by mass or less is more preferable. More preferable is 4% by mass or less.

  In the liquid detergent composition for clothing of the present invention, the content of the component (d) is 1% by mass or more and 7% by mass or less, and 1.5% by mass or more is preferable from the viewpoint of sebum stain detergency. 2 mass% or more is more preferable, 6 mass% or less is preferable, and 5 mass% or less is more preferable. In addition, content of (d) component in this invention is represented by content which converted the counter ion into Na salt.

  The liquid cleaning composition for clothing of the present invention has a water content of the (a) component, the (b) component, the (c) component, the optional (d) component, and other optional components in the present invention. And the amount of water necessary for the total content of water to be 100% by mass. As for water content, the quantity of 50 mass% or more and 85 mass% or less is mentioned, for example.

  When the liquid cleaning composition for clothing of the present invention contains the component (e), the content of the component (e) is preferably 0.1% by mass or more in the composition from the viewpoint of defoaming. 2 mass% or more is more preferable, and 1 mass% or less is preferable from the point of the storage stability of liquid feeling, and 0.9 mass% or less is more preferable.

  When the liquid cleaning composition for clothing of the present invention contains the component (f), the content of the component (f) is preferably 1% by mass or more in the composition from the viewpoint of the solubility of the surfactant. 2 mass% or more is more preferable, and 10 mass% or less is preferable from an economical point, and 8 mass% or less is more preferable.

  When one or more compounds selected from tripolyphosphate and zeolite [component (g)] are included as one of the components of the liquid detergent composition for clothing of the present invention, problems such as precipitation may occur. Therefore, it is preferable that it does not contain substantially. In the present invention, the fact that the component (g) is substantially free means that the liquid detergent composition for clothing is stored at 20 ° C. in a stationary state, even after 7 days from the start of storage (g) It means that even a content where no precipitation of components is observed is allowed. For example, the content of the component (g) is preferably less than 1% by mass, preferably less than 0.8% by mass, and more preferably less than 0.5% by mass in the composition.

The liquid detergent composition for clothing of the present invention has a pH at 20 ° C. of preferably 6 or more, more preferably 6.5 or more, and preferably 9.5 or less, more preferably 9 or less. Preferably it is 8.5 or less, More preferably, it is 8.0 or less. The measurement of pH can be performed as follows.
<Measurement method of pH>
A pH electrode (model 6367) is pre-calibrated with a phthalate buffer solution (pH 4.01), a phosphate standard solution (pH 6.84), and a borate standard solution (pH 9.18) on a pH meter D-52 manufactured by HORIBA, Ltd. Rinse thoroughly with ion-exchanged water. The calibrated and washed pH electrode as described above is placed in the liquid cleaning composition for clothing adjusted to a temperature of 20 ° C., and measurement is performed using the AUTO HOLD mode of the pH meter until the measured value becomes constant.

  The liquid detergent composition for clothing of the present invention is used for washing clothing such as clothing, towels, bedding, and textile products (sheets, pillow covers, etc.) for bedding. Textile products that can be washed other than these can also be targeted.

<Example 1 and Comparative Example 1>
A liquid detergent composition for clothing shown in Table 1 was prepared using the following components, and the cleaning power was evaluated by the following method using the obtained composition. The results are shown in Table 1.

<Blending ingredients>
[(A) component]
(A-1): Polyoxyethylene alkyl ether obtained by adding an average of 10 moles of ethylene oxide to a linear primary alcohol having 12 to 14 carbon atoms.
(A-2): Polyoxyalkylene alkyl ether in which an average of 8 moles of ethylene oxide, an average of 2 moles of propylene oxide and an average of 10 moles of ethylene oxide are added to a linear primary alcohol having 12 to 14 carbon atoms in this order .
(A-3): Polyoxyethylene alkyl ether obtained by adding an average of 4 moles of ethylene oxide to a linear primary alcohol having 12 carbon atoms.

[Component (b)]
(B1-1): Linear alkyl (C12-14) sodium benzenesulfonate, Neoperex G-25 (manufactured by Kao Corporation)
(B2-1): Polyoxyethylene (average number of added moles 2) sodium lauryl ether sulfate

[(C) component]
(C-1): Sodium sulfate (manufactured by Wako Pure Chemical Industries, Ltd., reagent special grade)
(C-2): Potassium sulfate (Wako Pure Chemical Industries, Ltd., reagent special grade)

[(C ′) Component: Comparative Compound of (c) Component]
(C′-1): Sodium chloride (Wako Pure Chemical Industries, Ltd.)

[Component (d)]
(D-1): Sodium paratoluenesulfonate (manufactured by Wako Pure Chemical Industries, Ltd.)

〔water〕
Water: Water containing sodium hypochlorite mg / kg

[Optional ingredients]
(E-1): Fatty acid, Lunac L-55 (manufactured by Kao Corporation)
(F-1): 95 degree ethanol (made by Wako Pure Chemical Industries, Ltd.)
(F-2): Diethylene glycol mono-butyl ether (Nippon Emulsifier Co., Ltd.)
pH adjuster: citric acid (made by Iwata Chemical Co., Ltd.) and / or monoethanolamine (made by Wako Pure Chemical Industries, Ltd.)

<Evaluation of cleaning power>
(Preparation of artificially contaminated cloth)
An artificially contaminated cloth having the following composition was attached to the cloth to prepare an artificially contaminated cloth. The artificial contamination liquid having the following composition is a model soil of sebum. The artificial contamination liquid was attached to the cloth by printing the artificial contamination liquid on the cloth using a gravure roll coater. The process of preparing an artificially contaminated cloth by attaching an artificially contaminated liquid to the cloth was performed at a cell capacity of gravure roll of 58 cm ³ / cm ² , a coating speed of 1.0 m / min, a drying temperature of 100 ° C., and a drying time of 1 minute. As the cloth, a cotton gold cloth 2003 cloth (manufactured by Tanigami Shoten) was used.
[Composition of artificial contamination liquid]
Lauric acid 0.44% by mass
Myristic acid 3.09% by mass
Pentadecanoic acid 2.31% by mass
Palmitic acid 6.18% by mass
Heptadecanoic acid 0.44% by mass
Stearic acid 1.57% by mass
Oleic acid 7.75% by mass
Trioleic acid 13.06% by mass
N-hexadecyl palmitate 2.18% by mass
Squalene 6.53 mass%
Egg white lecithin liquid crystal 1.94% by mass
Carbon black 0.01% by mass
The remainder of tap water (total 100% by mass)

(Evaluation method)
Four liters of artificially contaminated cloth (6 cm × 6 cm cut) are put into 1 L of a cleaning liquid obtained by mixing the liquid cleaning composition for clothes of the present invention and water, and a targotometer (MS-8212 manufactured by Uesima, 12 cm in inner diameter, 17 in height). .5 cm) at 85 rpm / min for 10 minutes. The concentration of the liquid detergent composition in the cleaning liquid was 0.83% by mass. The water used to prepare the cleaning solution was a water adjusted to a German hardness _{4 ° DH (178mgCaCO 3 / L} ) at Wakayama City tap water. The water temperature of the cleaning liquid was 20 ° C. After washing, rinsing with tap water was performed for 1 minute.
After washing, residual sebum was extracted from 4 artificially-stained artificially-stained cloths using a high-speed and high-pressure solvent extractor under the following conditions. In addition, the amount of the extract from each artificially contaminated cloth was adjusted so as to be always a constant amount. The extract was analyzed by gas chromatography (GC) under the following conditions, and the amount of residual sebum was quantified using the total peak area detected by GC as the amount of sebum soil. The sebum washing rate was calculated from the peak area ratio based on the amount of unwashed sebum.
(Extraction condition)
・ Equipment: PSE-916 (manufactured by BUCHI)
Extraction solvent: MeOH / CHCl ₃ = 1/1
・ Temperature: 100 ℃
・ Pressure: 103 bar (10.3 MPa)
・ Vial: 60ml
・ Cell: 40ml
・ Cycle: 3
・ Solvent flush: 1 min
・ Gas flash: 3 min

(GC measurement conditions)
・ Equipment: Agilent 7890A Series GC
Column: Agilent J & W GC Columns DB-1HT, 15 m × 250 μm × 0.1 μm (Length × ID × Film)
Detector: FID (330 ° C.), H2: 30 mL / min. Air: 400 mL / min.
Carrier gas: He (column flow rate: 0.99301 mL / min., Average linear velocity: 30 cm / sec)
Injection: split method (19.967: 1), 1 uL injection,
・ Temperature: 300 ℃
・ Pressure: 49.057 kPa
Total flow: 23.821 mL / min.
Oven temperature: 60 ° C. start → temperature increase rate (12 ° C./min.)→325° C. (33 min.)
・ Internal standard: 1-docosanol (manufactured by TCI)

  The sebum cleaning rate (%) was obtained by the following formula, and the cleaning power was evaluated. The table shows the average cleaning rate of the four model sebum-contaminated cloths.

<Appearance evaluation>
The liquid detergent composition for clothing immediately after preparation was No. 30 g was put into a 6 standard bottle, the appearance was visually observed, and the following criteria were evaluated.
○: Transparent ×: Opaque

When Example 1-2 described in Table 1 is compared with Comparative Examples 1-1 and 1-4, it is understood that the cleaning rate is improved by using the component (c) and the component (d) of the present invention in combination. .
Moreover, from the comparison between Example 1-1 and Comparative Example 1-2, and the comparison between Example 1-2 and Comparative Example 1-4, by containing the component (c) in the predetermined range of the present invention, It can be seen that both the appearance and the cleaning rate are excellent.
Moreover, it turns out that a washing | cleaning rate becomes high by containing (d) component in the predetermined range of this invention from contrast of Example 1-1, 1-2 and Comparative Example 1-1, 1-3. .
Moreover, it turns out from Comparative Example 1-5 that even if it uses the inorganic compound which does not correspond to (c) component, a washing | cleaning rate does not improve.
From these results, it can be seen that the inclusion of specific amounts of the component (c) and the component (d) of the present invention improves the appearance and increases the cleaning rate.

<Example 2>
The liquid cleaning composition for clothing described in Table 2 was prepared. The pH of the composition was adjusted to a predetermined value using monoethanolamine or citric acid. The pH in Table 2 is the pH at 20 ° C. The components used in Table 2 are the same as those in Example 1 (Table 1).
A liquid detergent composition for clothing 30 g was put in a 6 standard bottle, put in a -5 ° C. thermostatic bath, the appearance at −5 ° C. after storage for 7 days was visually observed, and evaluated according to the following criteria. The composition at any pH is transparent in appearance before storage and evaluated as ◯.
◯: Transparent □: Slightly cloudy △: Fairly cloudy

  Based on the results of evaluation of storage stability at low temperatures in this example, if a pH is selected such that the appearance after storage is ○ or □, the liquid for clothing that is excellent in appearance both immediately after preparation and after storage at low temperature A cleaning composition can be obtained.

Claims (5)

The following (a) component, (b) component, (c) component, (d) component and water are contained,
(A) The content of the component is 10% by mass or more and 30% by mass or less,
The mass ratio between the content of the component (a) and the content of the component (b) is [(b) component content] / [(a) component content] and is 0.1 to 2.5. And
(C) The content of the component is 0.5 mass% or more and 4 mass% or less,
(D) The content of the component is 1% by mass or more and 7% by mass or less,
Liquid detergent composition for clothing.
(A) Component: Nonionic surfactant represented by the following general formula (a1) R ¹ (CO) _m O— (A ¹ O) _n —R ² (a1)
[Wherein, R ¹ is a primary aliphatic hydrocarbon group having 9 to 16 carbon atoms, R ² is a hydrogen atom or a methyl group, CO is a carbonyl group, and m is 0 or 1. The A ¹ O group is one or more groups selected from an ethyleneoxy group and a propyleneoxy group, n is an average added mole number, and is a number of 5 or more and 20 or less. ]
(B) Component: From an anionic surfactant having a hydrocarbon group having 8 to 18 carbon atoms and a sulfonate group, and an anionic surfactant having a hydrocarbon group having 10 to 18 carbon atoms and a sulfate ester base One or more selected anionic surfactant (c) component: salt represented by the following general formula (c1)
(M ^{x +} ) _y SO ₄ ²⁻ (c1)
[Wherein, (M ^{x +} ) is one or more ions selected from sodium ions, potassium ions, magnesium ions, ammonium ions, and alkanol ammonium ions having 2 to 6 carbon atoms. x is the valence of the ion and is a number of 1 or 2. When x is 1, y is a number of 2, and when x is 2, y is a number of 1. ]
(D) Component: Aromatic sulfonic acid having 7 to 9 carbon atoms in total or a salt thereof   (B) An anionic surfactant having a hydrocarbon group having 8 to 18 carbon atoms and a sulfonate group, and an anionic surfactant having a hydrocarbon group having 10 to 18 carbon atoms and a sulfate ester base. The liquid detergent composition for clothes according to claim 1, which is an anionic surfactant. The liquid detergent composition for clothes (b1) according to claim 1, wherein the component (b) is at least one anionic surfactant selected from the following (b1) to (b4): carbon number 10 Alkylbenzenesulfonate (b2) having an alkyl group of 18 or less: an anionic surfactant represented by the following general formula (2) R ² O— (A ² O) _m —SO ₃ M (2)
[In the formula, R ² is a hydrocarbon group having 10 to 18 carbon atoms, the A ² O group is one or more groups selected from an ethyleneoxy group and a propyleneoxy group, and m is an average added mole number. And the number is 1 or more and 5 or less. M is a counter ion. ]
(B3): sulfate ester salt having a hydrocarbon group having 10 to 18 carbon atoms (b4): α-sulfo fatty acid ester salt having a hydrocarbon group having 8 to 18 carbon atoms
The component (c) is a salt in which (M ^{x +} ) in the general formula (c1) is one or more ions selected from sodium ions and potassium ions. Liquid detergent composition for clothing.   The liquid washing | cleaning for clothes in any one of Claims 1-4 whose (d) component is a C7-C9 aromatic sulfonic acid which has a C1-C3 alkyl group, or its salt. Agent composition.