JP6716200B2 - Liquid detergent composition for clothing - Google Patents

Description

The present invention relates to a liquid detergent composition for clothes.

In recent years, consumers have been demanding liquid detergent compositions for clothing from not only deteriorating the cleaning performance but also the residual aroma performance.
Patent Document 1 contains an anionic surfactant, an amine compound having a specific structure, a nonionic surfactant, and a fragrance, and has excellent cleaning performance and redeposition prevention performance against solid particle dirt, and good flexibility. Disclosed is a liquid detergent composition for clothes, which has good properties, good storage stability, and can be highly blended with a fragrance composition.

On the other hand, attempts have been made to formulate the fragrance composition in the form of microcapsules for the purpose of maintaining the scent and retaining the scent. A microcapsule of a fragrance composition (hereinafter sometimes referred to as a fragrance microcapsule) is a particulate substance in which a fragrance of a core substance is wrapped with a wall material, and its role is to protect the fragrance of the core substance and physically When a strong force is applied, the wall of the capsule is broken and the fragrance of the core substance is released.

Patent Document 2 describes a perfume microcapsule containing a perfume composition having a flash point in the range of 50 to 130° C. as a core substance.
Patent Document 3 describes a fragrance microcapsule containing a volatile component such as a highly volatile fragrance and an additive having a higher melting point and compatibility with the volatile component.
Patent Document 4 discloses that particles encapsulating a functional ingredient such as a fragrance composition are mixed in a liquid detergent composition for clothing.

JP, 2007-314693, A JP, 2006-249326, A International Publication No. 2007/038570 Japanese Patent Publication No. 2009-537693

It is known that blending fragrance microcapsules enhances the fragrance's persistence, but for clothing washed with the liquid detergent composition for clothing containing fragrance microcapsules, it is possible to finish wearing from the start of wearing. It was found that there was a problem that the incense tone changed until time. Further, it has been found that there is a demand for further increasing the persistence of the fragrance derived from the fragrance microcapsules, which is scented from the clothes washed with the liquid detergent composition for clothes containing the fragrance microcapsules.
The present invention provides a liquid detergent composition for clothes in which the fragrance derived from perfume microcapsules in the clothes after washing has little change in the scent from the start of wearing to the end of wearing, and the fragrance intensity continues. ..

The present invention comprises the following components (a), (b), (c), (d) and (e):
The total content of the component (a) and the content of the component (b) in the composition is 15% by mass or more and 35% by mass or less, and the content of the component (d) is 0.1% by mass or more and 2% by mass. Is less than
[Content of component (b)]/[content of component (a)], which is a mass ratio of the content of the component (b) and the content of the component (a), is 1 or more and 8 or less,
The content ratio of the content of the component (c) and the content of the component (d) [content of the component (c)/content of the component (d)] is 2 or more and 30 or less,
The present invention relates to a liquid detergent composition for clothes.
Component (a): Anionic surfactant containing a group selected from sulfate ester group and sulfonate group (b) Component: Nonionic surfactant R ¹ O[(EO) _s represented by general formula (I) /(PO) _t ]H (I)
(In the formula, R ¹ represents an aliphatic hydrocarbon group having 9 or more and 20 or less carbon atoms, EO represents an oxyethylene group, PO represents an oxypropylene group, and s and t represent the average number of added moles of EO and PO, respectively. , S is a number of 4 or more and 30 or less, t is a number of 0 or more and 5 or less. EO and PO may be either random addition or block addition.)
Component (c): fatty acid having 12 or more and 18 or less carbon atoms or salt thereof (d) component: perfume microcapsule (e) component: water

ADVANTAGE OF THE INVENTION According to this invention, the liquid detergent composition for clothes which the change of aroma is small from the start of wearing to the end of wearing and the fragrance intensity continues.

The present inventor, in a detergent composition for clothes including perfume microcapsules, with respect to an anionic surfactant having a group selected from a sulfate ester base and a sulfonate group, which are generally known as a cleaning component, It has been found that the inclusion of the nonionic surfactant containing a polyoxyalkylene group under a predetermined condition suppresses the change in the scent of the garment from the start of wearing to the end of wearing. It was also found that the strength of the fragrance is more sustained by using a specific fatty acid salt or a salt thereof in a specific ratio based on the mass of the fragrance microcapsule.

[(A) component]
The component (a) of the present invention is an anionic surfactant containing a group selected from a sulfate ester group and a sulfonate group, and is a compound having an action of cleaning dirt adhering to clothes. Specifically, it contains a sulfate group as a hydrophilic group, an anionic surfactant containing a hydrocarbon group having 10 or more and 20 or less carbon atoms as a hydrophobic group and a sulfonate as a hydrophilic group, and has 10 or more carbon atoms, One or more anionic surfactants selected from anionic surfactants containing 20 or less hydrocarbon groups as hydrophobic groups can be mentioned.

Examples of the anionic surfactant that is the component (a) of the present invention include one or more anionic surfactants selected from the following (a1) to (a4). Specific examples of the anionic surfactant containing a sulfonate as a hydrophilic group and a hydrocarbon group having 10 or more and 20 or less carbon atoms as a hydrophobic group include the following (a1) and (a2). Specific examples of the anionic surfactant containing a sulfate group as a hydrophilic group and a hydrocarbon group having 10 or more and 20 or less carbon atoms as a hydrophobic group include the following (a3) and (a4).

(A1) An alkylbenzene sulfonate having an alkyl group having 10 or more and 20 or less carbon atoms.
(A2): α-sulfofatty acid ester salt having a fatty acyl group having 10 or more and 20 or less carbon atoms (a3) The average carbon number of the alkyl group is 10 or more and 20 or less, and the average number of moles of ethylene oxide added is 0.5. The polyoxyethylene alkyl ether sulfuric acid ester salt of 6 or more.
(A4) An alkyl or alkenyl sulfate ester salt having an alkyl group or an alkenyl group having an average carbon number of 10 or more and 20 or less.

In (a1) or (a2), the carbon number of the alkyl group preferably includes (a1) or (a2) having a long alkyl group or fatty acyl group from the viewpoint of further enhancing the fragrance durability.
Specifically, in (a1), the ratio of (a1) having an alkyl group having 12 or more and 20 or less carbon atoms in the total (a1) is preferably 30% by mass or more, and preferably 40% by mass or more, And it is 100 mass% or less, 90 mass% or less is preferable, and 80 mass% or less is preferable.
Further, in (a2), the proportion of (a2) having a fatty acyl group having 16 or more and 20 or less carbon atoms in the total (a2) is preferably 50% by mass or more, preferably 60% by mass or more, and 100 It is not more than mass %.

In (a3), with respect to the scent derived from the perfume microcapsules in the washed clothing, the change in the scent can be further reduced from the start of wearing to the end of wearing, and thus the alkyl group having 12 carbon atoms in all (a3). Is preferably 30% by mass or more, more preferably 40% by mass or more, further preferably 50% by mass or more, further preferably 60% by mass or more, and 100% by mass or less, It is more preferably not more than mass %.
In addition, in (a4), from the same viewpoint as (a3), the proportion of (a4) having an alkyl group or an alkenyl group having a carbon number of 12 in all (a4) is preferably 30% by mass or more, and 40% by mass. % Or more, more preferably 50% by mass or more, still more preferably 60% by mass or more, and 100% by mass or less, more preferably 90% by mass or less.

As counter ions of these anionic surfactants, alkali metal ions such as sodium and potassium, alkaline earth metal ions such as magnesium and calcium, alkanolamine-derived ions such as monoethanolamine, diethanolamine, and triethanolamine, and At least one cation selected from the group consisting of ions derived from alkylalkanolamines such as monomethyldiethanolamine and dimethylmonoethanolamine.

The component (a) may be used singly or in combination of two or more, and may be blended as a neutralized product in the liquid detergent composition for clothes, or the liquid detergent composition for clothes in an acid form. You may neutralize after mix|blending in it.

From the standpoint of further increasing the fragrance persistence, the proportion of the anionic surfactant having a sulfonate group in the component (a) is preferably 50% by mass or more, more preferably 60% by mass or more, and more preferably 70% by mass or more. More preferably, and preferably 100% by mass or less.
Further, in order to further enhance the fragrance persistence, the proportion of (a1) in the component (a) is preferably 50% by mass or more, more preferably 60% by mass or more, even more preferably 70% by mass or more, and It is preferably 100% by mass or less.
In addition, the ratio of the component (a3) in the component (a) is preferably 5% by mass or more, more preferably 10% by mass or more, and more preferably 30% from the point that the change in the scent can be further reduced from the start of wearing to the end of wearing. More preferably, it is at least mass%.
In the present invention, as the mass of the component (a), a value obtained by converting counter ions into Na ions is used.

[(B) component]
The component (b) is a nonionic surfactant represented by the following general formula (I). By using the component (b) in a predetermined mass ratio with respect to the component (a), the persistence of the scent derived from the perfume microcapsules is further enhanced, and the perfume capsules are derived from the start of wearing the clothes to the end of wearing thereof. It is possible to suppress the change in the scent.
R ¹ O[(EO) _s /(PO) _t ]H (I)
(In the formula, R ¹ represents an aliphatic hydrocarbon group having 9 or more and 20 or less carbon atoms, EO represents an oxyethylene group, PO represents an oxypropylene group, and s and t represent the average number of added moles of EO and PO, respectively. , S is a number of 4 or more and 30 or less, t is a number of 0 or more and 5 or less. EO and PO may be either random addition or block addition.)

The carbon number of R ^{1 in} the general formula (I) is preferably 10 or more in that the change in the fragrance tone derived from the perfume microcapsules scented from the clothing can be further reduced from the time of wearing the clothing to the end of wearing. 12 or more are more preferable, 18 or less are preferable and 16 or less are more preferable.
S in the general formula (I) is preferably 5 or more, and more preferably 6 or more from the point that the change in the fragrance tone derived from the fragrance microcapsules scented from the clothing can be further reduced from the time of wearing the clothing to the end of wearing. It is preferably 25 or less, more preferably 20 or less, still more preferably 18 or less.
T in the general formula (I) is a number of 0 or more and 5 or less. t may be 0. When t is more than 0, it is preferably 1 or more, more preferably 1.5 or more, and preferably 2 or less.

[(C) component]
The component (c) is a fatty acid having 12 or more and 18 or less carbon atoms or a salt thereof. By using the component (c) in a specific ratio with respect to the perfume microcapsules of the component (d) of the present invention, it is possible to further enhance the durability of the fragrance derived from the perfume capsules.
Although the reason is presumed, when the liquid detergent composition for clothes of the present invention is added to general tap water having a hardness component at the time of washing clothes, fatty acid ions derived from the component (c) are contained in tap water. It is presumed that the scumification with calcium ions increased the hydrophobicity, and the perfume microcapsules were also hydrophobicized by being adsorbed hydrophobically to the outer shell material of the perfume microcapsules, which made it easier to adhere to clothing. There is.

It is preferable that the carbon chain length of the component (c) is longer, since the hydrophobicity is higher, and the carbon chain length is preferably shorter because the component (c) is less likely to crystallize in the liquid detergent composition. .. The component (c) is a fatty acid having 14 or more and 16 or less carbon atoms, or a salt thereof, because the component (c) is less likely to crystallize in the liquid detergent composition because the fragrance derived from the perfume microcapsules is more durable. The fatty acid or salt thereof is preferably contained, more preferably 30% by mass or more, and more preferably 40% by mass or more of the fatty acid having 14 or more and 16 or less carbon atoms or its salt in the component (c). The content is preferably 50 mass% or more, more preferably 55 mass% or more, still more preferably 60 mass% or more. The upper limit of the content of the fatty acid having 14 or more and 16 or less carbon atoms or its salt in the component (c) is 100% by mass. That is, in the component (c), the proportion of the fatty acid salt having 14 or more and 16 or less carbon atoms or the salt thereof is preferably 30% by mass or more, more preferably 40% by mass or more, further preferably 50% by mass or more, and further 55 It is more preferably at least mass%, even more preferably at least 60 mass% and even more preferably at most 100 mass%.

In the present invention, the mass of the component (c) is the mass of the counter ion of the fatty acid converted to the acid form, that is, the hydrogen atom.

[(D) component]
The component (d) is a perfume microcapsule. The fragrance microcapsules are encapsulated fragrance compositions. For example, a resin may be used for the outer shell (wall material) of the microcapsule, and the perfume composition is encapsulated by a known method.

The method for preparing the perfume microcapsule is not particularly limited, and a known microencapsulation method can be adopted. Specifically, chemical manufacturing methods (interfacial polymerization method, in situ polymerization method, orifice method), physicochemical methods (coacervation method), mechanical/physical methods (air suspension coating method, spray drying method, High-speed air flow impact method) and the like. Examples of the shell of the perfume microcapsule include various polymer compounds such as polyurethane, polyamide, melamine resin, urea resin, alginate, gelatin, gum arabic, and starch.

More specifically, the method for producing the perfume microcapsule of the present invention is described in detail in “Making + Microcapsule” (Masumi Koishi et al., Industrial Research Society, 2005), JP 2008-63575A, JP 2006. The methods described in JP-A-249326, JP-A-2006-518790, JP-A-11-216354, JP-A-5-222672 and the like can be used.

As a preferred method for producing a perfume microcapsule, an emulsifier such as ethylene-maleic anhydride copolymer and a perfume and any diluent or solvent are dispersed in water to obtain an emulsion, and then the emulsion is given melamine-formaldehyde. A method of obtaining a slurry of perfume microcapsules by adding a wall material such as a resin and stirring the same. Further, in advance, a monomer that becomes a resin forming the wall material and an emulsifier such as isobutylene-maleic anhydride copolymer and acrylic acid-acrylamide copolymerization were mixed in water to prepare a wall material/emulsifier mixture. A method of obtaining a slurry of perfume microcapsules by emulsifying the wall material/emulsifier mixture with the perfume and any diluent or solvent, adding formaldehyde to the emulsion, and stirring the mixture.

As the fragrance used in the fragrance microcapsules, the fragrance compositions described in JP-A-2006-249326, WO2007/038570 and JP-A-2007-314693 can be used.

[Component (e)]
The component (e) is water. Water is not particularly limited, but water selected from tap water, distilled water and ion-exchanged water can be used.

[Liquid detergent composition for clothing]
The liquid detergent composition for clothing of the present invention contains the above-mentioned component (a), component (b), component (c), component (d) and component (e) as essential components.

The total content of the component (a) and the content of the component (b) in the composition of the present invention is 15% by mass or more and 35% by mass or less. From the viewpoint of further enhancing the cleaning performance of dirt attached to clothes, the total content of the components (a) and (b) in the composition is preferably 16% by mass or more, and 18% by mass or more. More preferably, 20 mass% or more is still more preferable. From the viewpoint of stability of the liquid detergent composition for clothes, the total content of the component (a) and the component (b) in the composition is preferably 30% by mass or less, and 28% by mass. The following is more preferable, and 26% by mass or less is further preferable.

The content of the component (d) in the composition of the present invention is 0.1% by mass or more and 2% by mass or less, and preferably 0.15% by mass or more from the viewpoint of improving the persistence of the scent of clothes. , 0.2 mass% or more is more preferable, and 1.5 mass% or less is preferable, and 1 mass% or less is more preferable.

In the present invention, [content of component (b)]/[content of component (a)], which is a mass ratio of the content of the component (b) and the content of the component (a), is 1 or more and 8 or less. Is. [Content of the component (b)]/[content of the component (a)] is the point that the change in the fragrance tone derived from the perfume microcapsules, which is fragrant between the time of wearing the clothes and the end of wearing, is further reduced. It is preferably more than 1, more preferably 1.1 or more, still more preferably 1.2 or more, even more preferably 1.3 or more, even more preferably 1.4 or more, even more preferably 1.5 or more, 1.6 or more is even more preferable. And 7.0 or less are preferable, 6.0 or less are more preferable, 5.0 or less are further more preferable, 2.8 or less are still more preferable.
From the standpoint of further enhancing the scent persistence, [content of (b) component]/[content of (a) component] is preferably more than 1, more preferably 1.1 or more, and 1.2 or more. More preferably, 1.3 or more is still more preferable, 1.4 or more is still more preferable, 1.5 or more is still more preferable, and 1.6 or more is even more preferable. When it is 1.6 or more, the fragrance persistence is almost the same.

In the present invention, [content of (c) component]/[content of (d) component], which is a mass ratio of the content of the component (c) and the content of the component (d), is 2 or more and 30 or less. is there. From the viewpoint of further enhancing the strength of the scent derived from the perfume capsule of the component (d), [content of the component (c)]/[content of the component (d)] is preferably 3 or more, more preferably 4 or more, 5 or more is more preferable, and 25 or less is preferable, 20 or less is more preferable, 15 or less is further preferable, and 10 or less is even more preferable, in order to further reduce the change in the fragrance tone derived from the perfume microcapsules.

The content of water as the component (e) is 100% by mass in total including the components (a), (b), (c), (d), (e) and optional components described below. Is the amount needed to be

[Arbitrary ingredients]
The liquid detergent composition for clothing of the present invention may contain an amine compound represented by the following general formula as the component (f) in order to further enhance the durability of the scent derived from the component (d). it can.

[In the formula, R ^1f is an alkyl group or alkenyl group having 13 or more and 21 or less carbon atoms, R ^2f and R ^3f are each an alkyl group or hydroxyalkyl group having 1 or more and 6 or less carbon atoms, and X is NH, CONH. , COO and O, and R ^4f represents an alkylene group having 2 to 6 carbon atoms. ]

In the amine compound represented by the above general formula, which is the component (f) of the present invention, R ^1f in the formula is preferably an alkyl group or an alkenyl group having 15 or more and 21 or less carbon atoms, and further 15 or more and 19 or less carbon atoms. , Alkyl groups are more preferred.
Further, R ^2f and R ^3f are each independently preferably an alkyl group or a hydroxyalkyl group having 1 or more and 3 or less carbon atoms, and more preferably 1 carbon atom, and more preferably an alkyl group. Further, R ^2f and R ^3f are preferably the same.
CONH is preferably X. R ^4f is preferably an alkylene group having 2 or more and 4 or less, and further 3 or less carbon atoms, and more preferably a linear alkylene group.

Specific examples of the component (f) include laurylamidopropyldimethylamine, myristylamidopropyldimethylamine, palmitylamidopropyldimethylamine, stearylamidopropyldimethylamine, behenylamidopropyldimethylamine, and oleylamidopropyldimethylamine. Are listed. The component (f) may be used alone or in combination of two or more.

The content of the component (f) in the composition of the present invention is preferably 0.5% by mass or more, more preferably 0.7% by mass or more, further preferably 0.8% by mass or more, and 5% by mass. The following is preferable, 4% by mass or less is more preferable, and 3% by mass or less is further preferable.

From the viewpoint of improving the storage stability of the composition, the liquid detergent composition for clothing of the present invention contains 4 or more and 10 or less carbon atoms in the molecule as a component (g), and contains an aromatic group. The sulfonic acid or its salt can be blended.

Examples of the component (g) include benzene sulfonic acid, p-toluene sulfonic acid, xylene sulfonic acid, cumene sulfonic acid, sulfobenzoic acid, sulfophthalic acid, naphthalene sulfonic acid and their sodium salts, potassium salts and diethanolamine salts. To be Examples of the salt include sodium salt, potassium salt, diethanolamine salt and the like. These may be used alone or in combination of two or more.

The content of the component (g) in the composition of the present invention is preferably 0.1% by mass or more, more preferably 0.2% by mass or more, further preferably 0.3% by mass or more, and 10% by mass or less. It is preferably 5% by mass or less, more preferably 3% by mass or less.

From the viewpoint of stability, the liquid detergent composition for clothing of the present invention preferably comprises a solvent containing a hydroxyl group as the component (h).
Examples of the component (h) include (h-1) monohydric alcohols having 1 or more and 4 or less carbon atoms. More specifically, methanol, ethanol, propanol, butanol and the like can be mentioned, with ethanol being preferred.
As the component (h), (h-2) ethylene glycol monobutyl ether, diethylene glycol monobutyl ether (butyl carbitol), propylene glycol diethylene glycol monobutyl ether, dipropylene glycol ethylene glycol monobutyl ether, ethylene glycol monophenyl ether, triethylene One or more solvents selected from glycol monophenyl ether can be mentioned.

The content of the component (h) in the composition of the present invention is preferably 0.1% by mass or more, more preferably 0.5% by mass or more, further preferably 1% by mass or more, and preferably 30% by mass or less, 25 mass% or less is more preferable, and 20 mass% or less is still more preferable.

The liquid detergent composition for clothes of the present invention may contain, as the component (i), alkali metal hydroxides, silicates, carbonates such as sodium carbonate, and alkali agents such as alkanolamines. ..

The content of the alkaline agent (i) in the liquid detergent composition for clothing of the present invention is preferably 0.01% by mass or more and 10% by mass or less.

In the liquid detergent composition for clothes of the present invention, hydrogenated castor oil can be used as the component (j) in order to suppress the separation of the perfume microcapsules as the component (d).

The content of the component (j) in the liquid detergent composition for clothing is preferably 0.05% by mass or more, more preferably 0.07% by mass or more, from the viewpoint of suppressing the separation of the perfume microcapsules. It is more preferably at least mass%. The content of the component (j) in the liquid detergent composition for clothes is preferably 1% by mass or less, more preferably 0.8% by mass or less from the viewpoint that the viscosity of the liquid detergent composition for clothes can be lowered. , 0.5 mass% or less is more preferable.

The viscosity of the liquid detergent composition for clothes of the present invention at 20° C. is preferably 10 mPa·s or more, more preferably 30 mPa·s or more, further preferably 50 mPa·s or more, and 400 mPas in view of easy handling. ·S or less is preferable, 300 mPa·s or less is more preferable, and 200 mPa·s or less is further preferable. It is preferable that the viscosity is adjusted to be in such a range with a viscosity modifier. These viscosities are measured by using a B-type viscometer (manufactured by Tokyo Keiki Co., Ltd., VISCOMETER MODEL DVM-B), a rotor 3 or 4, It was measured under the conditions of a rotation speed of 60 r/min and a measurement time of 60 seconds.

From the viewpoint of stability, cleaning performance, and damage, the liquid detergent composition for clothing of the present invention has a pH measured at 20° C. according to JIS K 3362: 1998 of preferably 6 or more, more preferably 6.5. Above, and preferably 9 or less, more preferably 8 or less.

A liquid detergent composition for clothes having the composition shown in Table 1 was prepared using the following ingredients. The pH of the composition was adjusted with NaOH.

<Ingredients>
(A) Component (a-1): straight-chain alkyl (carbon number 10-14) sodium benzenesulfonate, composition is carbon number 10/carbon number 11/carbon number 12/carbon number 13/carbon number 14=9. 5/35/35/20/0.5 (mass ratio) and the above-mentioned carbon number 12 are linear alkylbenzene sulfonates in which the alkyl group has 12 carbon atoms. (Blended after converting into effective content)
(A-2): sodium polyoxyethylene alkyl ether sulfate, the composition is 12 carbon atoms/14 carbon atoms/16 carbon atoms/=60/35/5 (mass ratio), and said 12 carbon atoms is an alkyl group Is a sodium polyoxyethylene alkyl ether sulfate having 12 carbon atoms. The average added mole number of oxyethylene groups is 2. (Blended after converting into effective content)

(B) Component (b-1): Polyoxyethylene alkyl ether (b-2) obtained by adding 12 mol of ethylene oxide to a straight-chain primary alcohol having 12 to 14 carbon atoms on average (b-2): Softanol 70 (Japan Co., Ltd.). (Manufactured by Catalyst) (polyoxyethylene alkyl ether obtained by adding 7 mol of ethylene oxide to a secondary alcohol having 12 to 14 carbon atoms on average)
(B-3): Polyoxyalkylene alkyl ether obtained by block-adding ethylene oxide on an average of 5 moles, propylene oxide on an average of 2 moles, and ethylene oxide on an average of 3 moles to a linear primary alcohol having 12 to 14 carbon atoms.

(C) Component (c-1): Mixed fatty acid (a mixed fatty acid of lauric acid, myristic acid and palmitic acid, lauric acid/myristic acid/palmitic acid=40/55/5 (mass ratio))
(C-2): Lauric acid

(D) Component (d-1): 1.7 g of perfume microcapsules diisobutylene-maleic anhydride copolymer (Demol EP, solid content 25%, Kao Corporation) produced by the following method is neutralized with hydrochloric acid. Then, it was further diluted with ion-exchanged water to obtain an aqueous solution having a solid content of 3% and a pH of 4.3. Next, 36 g of the fragrance composition having the following composition was added to 100 g of the aqueous diisobutylene-maleic anhydride copolymer solution, emulsified using a homomixer, and the temperature was raised to 50°C. Next, an aqueous solution obtained by mixing 12 g of a partially methylolated melamine resin (trade name Cymel385, solid content 80%, manufactured by Cytec Industries Inc) and 35 g of ion-exchanged water was added dropwise. This was kept at 50° C. for 2 hours, further kept at 70° C. for 1 hour, and further kept at 80° C. for 3 hours to complete the encapsulation. Then, by allowing to cool, (d-1) was obtained as a microcapsule slurry having an average particle size of 7 μm and an effective content of 30% by mass. In (d-1), the proportion of the perfume composition having the following composition in the inclusion (core substance) of the microcapsule was 80% by mass.

Fragrance composition: A fragrance composition containing the following fragrance ingredients. Numbers in parentheses are parts by weight.
Limonene (80), 1,8-cineole (30), γ-undecalactone (50), geraniol (20), terpineol (20), tetrahydrolinalool (50), methyl dihydrojasmonate (120), geranyl acetate (120). 55), o,t-butylcyclohexyl acetate (100), tricyclodecenyl propionate (70), lilial (50), hexylcinnamic aldehyde (100), α-ionone (80), β-ionone (20). ), γ-methylionone (50), isoE super (60), δ-damascon (2), ambroxane (3), cis-3-hexenyl salicylate (40).

(E) Component/ion-exchanged water

Component (f) · (f-1): RCONH (CH 2) 3 N (CH 3) 2 (R: alkyl group having a carbon number of 17)
Component (g)-(g-1): p-toluenesulfonic acid (h)-component-(h-1-1): ethanol-(h-2-1): dipropylene glycol-mono-butyl ether-(h- 2-2): ethylene glycol-mono-phenyl ether (i) component-(i-1): monoethanolamine (j) component-(j-1): hydrogenated castor oil

With respect to the liquid detergent composition for clothing shown in Table 1, the fragrance persistence (residual aroma) and fragrance tone change were evaluated by the following methods. The results are shown in Table 1.

<Evaluation method of residual odor>
-Preparation of test cloth A model sebum artificially contaminated cloth was prepared by adhering a model sebum artificially contaminated solution having the following composition to the cloth. The adhesion of the model sebum artificial contaminant to the cloth was performed by printing the artificial contaminant on the cloth using a gravure roll coater. The step of adhering the model sebum artificial soiling liquid to the cloth to produce the model sebum artificial soiling cloth is carried out with a gravure roll cell volume of 58 cm ³ /m ² , an application speed of 1.0 m/min, a drying temperature of 100° C., and a drying time of 1 min. It was As the cloth, cotton 2003 (manufactured by Tanigami Shoten) was used.

* Composition of model sebum artificial contaminated liquid: lauric acid 0.4% by mass, myristic acid 3.1% by mass, pentadecanoic acid 2.3% by mass, palmitic acid 6.2% by mass, heptadecanoic acid 0.4% by mass, stearin Acid 1.6 mass %, oleic acid 7.8 mass %, triolein 13.0 mass %, n-hexadecyl palmitate 2.2 mass %, squalene 6.5 mass %, egg white lecithin liquid crystal substance 1.9 mass %. , Kanuma red clay 8.1% by mass, carbon black 0.01% by mass, water balance (total 100% by mass)

-Preparation of evaluation test cloth for residual odor property 10 pieces of evaluation test cloths (6 cm x 6 cm) produced above were measured with a tergotometer (Ueshima, MS-8212), and the liquid detergent composition for clothes shown in Table 1 was used. Was used for 10 minutes at 85 rpm. The washing conditions were such that the concentration of the liquid detergent composition for clothes was 0.1% by mass, the water temperature was 20° C., and the bath ratio was 15 (adjusted with a cloth obtained by cutting cotton 2003 (manufactured by Yatsugami Shoten Co., Ltd.) into 6 cm×6 cm). After washing, it was rinsed with tap water (20° C.) at a bath ratio of 15 for 3 minutes, squeezed by hand and dehydrated to a weight of 90% by weight with respect to the weight of the evaluation test cloth before washing. Then, after leaving it in a constant temperature room of 23° C. and 65% RH for 12 hours, it was further stored in a constant temperature room of 30° C. and 45% RH for 12 hours to obtain 10 test cloths for evaluation of residual aroma.

-Evaluation method of residual aroma The 10 cloths obtained from the residual aroma evaluation test cloths were stacked. Five panelists (two men and three women) who were skilled in the scent evaluation used the test cloth of Comparative Product 2 in Table 1 as a reference, and the fragrance intensity of the test cloth of the present invention or other comparative products was strong. It was evaluated according to the following criteria. The average score of 5 persons was calculated. A score of +0.5 was given if the panelists were rated between 0 and +1. A score of +1.5 was given when assessed between +1 and +2. An average score of 0.6 or more is acceptable, and a higher numerical value is preferable.

+2: The intensity of the scent scented from the evaluation test cloth feels stronger than the intensity of the scent scented from the evaluation test cloth of the residual aroma of Comparative Product 2 .
+1: the strength of the smell that smell from the evaluation test fabrics, but feel stronger than the strength of the smell that smell from the substantivity of the evaluation test cloth of comparative product 2, close to the strength of the scent of comparative product 2 and say either.
0: The intensity of the scent scented from the evaluation test cloth and the intensity of the scent scented from the evaluation test cloth for the residual odor of Comparative Product 2 are almost the same.

<Evaluation method of fragrance change>
Of the 10 test cloths obtained in the same manner as in the above "Preparation of test cloth for evaluation of residual odor", 5 randomly selected test cloths are wrapped in aluminum foil and stored in a thermostatic chamber at 5°C. did. This test cloth was used as test cloth (1). The remaining five test cloths were wrapped in aluminum foil and stored in a thermostatic chamber at 30°C and 45% RH. This test cloth was used as test cloth (2). Twelve hours after the start of storage, the test cloth (1) and the test cloth (2), which were taken out from each temperature-controlled room and left in a temperature-controlled room at 23° C. and 65% RH for 1 hour, were used to evaluate fragrance. Five panelists (2 men and 3 women) were evaluated according to the following criteria. A score of +0.5 was given if the panelists were rated between 0 and +1. A score of +1.5 was given when assessed between +1 and +2. The average score of 5 panelists was calculated. An average score of 0.8 or more is acceptable, and a higher numerical value is preferable.

+2: The scent of the test cloth (2) is slightly different from that of the test cloth (1), but is almost the same as that of the test cloth (1).
+1: The scent of the test cloth (2) is slightly different from that of the test cloth (1), but is close to the scent of the test cloth (1).
0: The scent of the test cloth (2) is clearly different from that of the test cloth (1).

The products 1 to 12 of the present invention have an evaluation point of residual aroma obtained by the above method of 0.6 or more, and an evaluation point of change of aroma tone of 0.8 or more, little change in aroma tone, and aroma intensity. It can be seen that the liquid detergent composition for clothes lasts.
On the other hand, Comparative Products 1 to 3 had a residual odor evaluation score of less than 0.6 and/or a change in fragrance score of less than 0.8.
In the products 1 to 4 of the invention, the rank of the evaluation points of the change in the scent of the scent derived from the perfume microcapsules is the best in the product 3 of the invention, then the product 2 of the invention, the product 1 of the invention, and the product 4 of the invention It was in order. Further, regarding the persistence of the scent, the products of the present invention 3 and 4 were the best, followed by the product of the present invention 2, and then the product of the present invention 1.
Comparing Inventive Product 2, Inventive Product 5, Inventive Product 6 and Inventive Product 12, the fragrance persistence is best in Inventive Products 2 and 6 at the same level, then inventive Product 5 is good, Next, the product of the present invention 12 was good.
When the product 3 of the present invention and the product 7 of the present invention are compared, the evaluation points of the suppression of scent modulation are about the same, but the product 3 of the present invention has a high scent persistence.
When the product 2 of the present invention and the product 8 of the present invention are compared, the product 8 of the present invention has a higher scent modulation suppressing effect, and the product 2 of the present invention has a higher scent persistence.

Claims (6)

The following (a) component, (b) component, (c) component, (d) component and (e) component are blended,
The total content of the component (a) and the content of the component (b) in the composition is 15% by mass or more and 35% by mass or less, and the content of the component (d) is 0.1% by mass or more and 2% by mass. Is less than
When the [content of the (b) component]/[content of the (a) component], which is a mass ratio of the content of the component (b) and the content of the component (a), is 1.2 or more and 7.0 or less. Yes,
(C) the content of component (d) and the mass ratio of the content of the component [component (c) content / (d) the content of component] is 2 or more state, and are 30 or less,
As the component (a), (a1) an alkylbenzene sulfonate having an alkyl group having 10 or more and 20 or less carbon atoms [hereinafter referred to as (a1) component], and (a3) the average carbon number of the alkyl group is 10 or more, 20. In the following, one or more anionic surfactants selected from polyoxyethylene alkyl ether sulfate ester salts having an average addition mole number of ethylene oxide of 0.5 or more and 6 or less [hereinafter referred to as (a3) component] are contained. ,
Liquid detergent composition for clothes.
Component (a): Anionic surfactant containing a group selected from sulfate ester group and sulfonate group (b) Component: Nonionic surfactant R ¹ O[(EO) _s represented by general formula (I) /(PO) _t ]H (I)
(In the formula, R ¹ represents an aliphatic hydrocarbon group having 9 or more and 20 or less carbon atoms, EO represents an oxyethylene group, PO represents an oxypropylene group, and s and t represent the average number of added moles of EO and PO, respectively. , S is a number of 4 or more and 30 or less, t is a number of 0 or more and 5 or less. EO and PO may be either random addition or block addition.)
Component (c): fatty acid having 12 or more and 18 or less carbon atoms or salt thereof (d) component: perfume microcapsule (e) component: water The liquid detergent composition for clothes according to claim 1, wherein the ratio of the anionic surfactant having a sulfonate group in the component (a) is 50% by mass or more. The liquid detergent composition for clothes according to claim 1 , wherein the ratio of the component (a1) in the component (a) is 50% by mass or more . The liquid detergent composition for clothing according to claim 1 , wherein the ratio of the component (a3) in the component (a) is 5% by mass or more . The liquid detergent composition for clothing according to claim 1, wherein the ratio of the fatty acid salt having 14 or more and 16 or less carbon atoms or the salt thereof in the component (c) is 30% by mass or more. Further, an amine compound represented by the following general formula is blended as the component (f), and the content of the component (f) in the composition is 0.5% by mass or more and 5% by mass or less. Item 7. A liquid detergent composition for clothes according to any one of items 1 to 5 .

[In the formula, R ^1f is an alkyl group or alkenyl group having 13 or more and 21 or less carbon atoms, R ^2f and R ^3f are each an alkyl group or hydroxyalkyl group having 1 or more and 6 or less carbon atoms, and X is NH, CONH. , COO and O, and R ^4f represents an alkylene group having 2 to 6 carbon atoms. ]