JP2005314559A - Perfume particle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a perfume particle produced by directly compounding perfume to an aqueous composition having high surfactant concentration in high compounding stability of the perfume independent of the kind and quantity of the surfactant. <P>SOLUTION: The perfume particle contains (a) a perfume material containing ≥20 mass% perfume component having a logPow of ≥2.0 and (b) a polysaccharide derivative obtained by substituting a part or total of the hydrogen atoms of hydroxy groups of a polysaccharide with a group expressed by general formula (b1): R<SP>1</SP>-(OA)<SB>a</SB>-B-R<SP>2</SP>(R<SP>1</SP>is a 1-6C alkylene; A is a 1-6C alkylene; a is 1-300 on an average; B is O, COO or OCO; and R<SP>2</SP>is a 4-30C alkyl or a 1-5C sulfoalkyl) at an (a)/(b) mass ratio of 1/1 to 200/1. The invention further provides a textile softening agent composition containing the perfume particle and a clothes detergent composition containing the perfume particle. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to perfume particles, and aqueous compositions containing the same, in particular textile softener compositions and garment cleaning compositions.

Many techniques of capsule-like particles enclosing a fragrance are known. For example, Patent Literature 1, Patent Literature 2, Patent Literature 3, Patent Literature 4, Patent Literature 5, Patent Literature 6, Patent Literature 7, Patent Literature 8, Patent Patent Document 9, Patent Document 10, Patent Document 11 and the like disclose the technology of capsule particles containing a fragrance with a cellulose derivative or starch derivative as an outer shell. Patent Document 12 discloses a technique for applying a compound obtained by modifying a polysaccharide with an alkylpolyoxyalkylene group or a cationic group to a toiletry product.
Japanese translation of PCT publication No. 8-501441 Special table 2003-515664 gazette Special table 2003-505537 gazette Japanese translation of PCT publication No. 2002-513073 Special table 2001-518135 gazette Japanese Patent Laid-Open No. 11-32222 JP-A-10-94591 JP-A-8-208429 JP 2004-99743 A JP 2003-128971 A JP 2002-326904 A International Publication No. 00/73351 Pamphlet

  In toiletry products, fragrance is an important ingredient in terms of palatability, and in recent years, the taste of fragrance and the preference for strength have diversified, and its importance is increasing. In addition, many toiletry products contain a surfactant, and the fragrance is often blended in the composition solubilized, emulsified or dispersed by the surfactant. However, if a fragrance is added directly to an aqueous composition having a high surfactant concentration, especially a softener composition or a liquid detergent composition, the appearance of the composition, such as separation or cloudiness, is impaired, or storage stability is significantly degraded. There is a problem that a problem occurs. This is thought to be because the perfume solubilized, emulsified or dispersed in the surfactant makes the system more hydrophobic and makes the system unstable. For this reason, there is no choice but to take a method of limiting the type and amount of fragrances and surfactants, and work to select the types of fragrances and surfactants without impairing basic effects such as softening effects and cleaning effects. It took a lot of effort. Therefore, there is an eager desire for a technique capable of stably blending a fragrance in a softener composition or liquid detergent composition having a high surfactant concentration without affecting the amount or type of the surfactant.

  On the other hand, as described in Patent Documents 1 to 11, the technique of capsule particles encapsulating a fragrance is described as a technique using a cellulose derivative, a starch derivative, gelatin or the like as an outer shell. It does not suggest the problem of a high aqueous composition, and cannot recall the effect that a fragrance can be blended stably without affecting the amount and type of the surfactant. Patent Document 12 discloses a toiletry product containing a compound obtained by modifying a polysaccharide with an alkylpolyoxyalkylene group or a cation group, but when a fragrance is used in a toiletry product having a high surfactant concentration. There is no suggestion about this issue.

  Accordingly, the object of the present invention is to stabilize the composition without affecting the type and amount of the surfactant when the perfume is directly blended in the aqueous composition having a high surfactant concentration, particularly in the softener composition or the liquid detergent composition. The object is to provide a technique capable of blending a fragrance.

In the present invention, the following (a) component and (b) component are contained in a mass ratio of (a) component / (b) component = 1/1 to 200/1 (hereinafter referred to as the fragrance particle of the present invention). The mixture obtained by mixing the following (a) component, (b) component and water in the range of (a) component / (b) component (mass ratio) = 1/1 to 200/1 is diluted with water. Perfume particles, an aqueous composition containing the perfume particles of the present invention and a surfactant, a fabric softener composition containing the perfume particles of the present invention, and a detergent composition for clothing containing the perfume particles of the present invention Offer things.
(A) Component: Fragrance containing 20% by mass or more of a fragrance component having a log Pow of 2.0 or more (b) Component: Part or all of the hydrogen atoms of the hydroxy group of the polysaccharide are represented by the general formula (b1) A polysaccharide derivative substituted with a group (hereinafter referred to as group (b1)) (the hydrogen atom of the hydroxy group in group (b1) may be further substituted with group (b1))
—R ¹ — (OA) _a —B—R ² (b1)
[Wherein, R ¹ represents a linear or branched alkylene group having 1 to 6 carbon atoms which may be substituted with a hydroxy group or an oxo group, and A represents a linear or branched chain group having 1 to 6 carbon atoms. Represents an alkylene group, a represents an average value of 1 to 300, and a a may be the same or different; B represents a group selected from —O—, —COO— or —OCO—, and R ² represents a linear or branched alkyl group having 4 to 30 carbon atoms which may be substituted with a hydroxy group, or a hydroxy group. The C1-C5 sulfoalkyl group which may be substituted by is shown. ]

  The perfume particles of the present invention can be stably present in an aqueous composition having a high surfactant concentration, particularly a softener composition or a liquid detergent composition, without affecting the type and amount of the surfactant. The treatment composition for garments containing the fragrance particles of the invention can enhance the strength of the scent from the treated garment, and can be stabilized by including it in a softener composition and a cleaning composition, among others. A fragrance | flavor can be mix | blended with.

[(A) component]
The component (a) of the present invention has a logPow of 2.0 or more, preferably 2.0 or more and 7.0 or less, more preferably 3.0 or more and 7.0 or less (hereinafter referred to as perfume component (a1)). ) In an amount of 20% by mass or more. The content of the fragrance component (a1) in the component (a) is preferably 50% by mass or more, more preferably 70% by mass or more, particularly preferably 80% by mass or more, and most preferably 90% by mass or more. On the other hand, it is preferable to contain a fragrance component having a higher log Pow, that is, a more hydrophobic fragrance component. It is preferable that a fragrance component having a log Pow of 3.0 or more is contained in the component (a) by 20% by mass or more, more preferably 30% by mass or more, and 40% by mass or more. Is particularly preferred. Here, logPow is a 1-octanol / water partition coefficient of a chemical substance, which is a value obtained by calculation by the f-value method (hydrophobic fragment constant method). Specifically, the chemical structure of a compound can be determined by decomposing the chemical structure into its constituent components and integrating the hydrophobic fragment constants (f values) of each fragment. CLOGP3 Reference Manual Daylight Software 4.34, Albert Leo, David You can refer to Weininger, Version1, March 1994. Such component (a) is a water-insoluble compound and exists in an aqueous composition containing a surfactant solubilized in the surfactant, but is stable in order to change the composition hydrophobically. And has the property of affecting the appearance of the composition.

  As the fragrance component (a1), (i) hydrocarbon fragrance, (ii) alcohol fragrance, (iii) aldehyde, ketone fragrance, (iv) ester fragrance, (v) phenol fragrance, (vi) ether A compound selected from perfume flavors can be selected.

  (I) Examples of the hydrocarbon-based fragrance include α-pinene, β-pinene, camphene, limonene, diterpene, terpinolene, myrcene, p-cymene, and β-caryophyllene, and limonene is particularly preferable.

  (Ii) Examples of alcohol-based fragrances include sandal mysole core, santalol, terpineol, l-menthol, citronellol, dihydromyrcenol, ethyl linalool, geraniol, linalool, mugor, myrsenol, nerol, and nerolidol. In particular, geraniol, dihydromyrcenol, linalool, and sandalmysol core are suitable.

  (Iii) Aldehydes and ketone-based fragrances include aldehyde C-111, greenal, mandarin aldehyde, trimethylundecenal, citral, citronellal, amylcinnamic aldehyde, hexylcinnamic aldehyde, lyial, dihydrojasmon, cis-jasmon, l -Carvone, ionone α, methyl ionone α, methyl ionone G. Particularly preferred are aldehyde C-111, citral, citronellal, hexylcinnamic aldehyde, methylionone G, and lyial.

  (Iv) As ester flavors, phenylethyl acetate, allyl amyl glycolate, rifarom, cis-3-hexyl acetate, styryl acetate, heptyl acetate, ot-butylcyclohexanone, pt-butylcyclohexanone, citronellyl Examples include acetate, geranyl acetate, linalyl acetate, acetyl eugenol, cinnamyl acetate, ethyl cinnamate, hexyl salicylate, and isobutyl salicylate. In particular, phenylethyl acetate, allyl amyl glycolate, styryl acetate, ot-butylcyclohexanone, citronellyl acetate, geranyl acetate, linalyl acetate, acetyleugenol, and cinnamyl acetate are preferable.

  (V) Examples of phenolic fragrances include eugenol, isoeugenol, mussins, thymol, and banitrope. In particular, eugenol and mussins are preferred.

  (Vi) Examples of ether-based fragrances include anisole, ambroxan, cedroxide, citronellyl ethyl ether, anethole, methyl eugenol, methyl isoeugenol, and nerolin yarayara. In particular, ambroxan, anethole, and nerorinarayara are suitable.

  The component (a) of the present invention is particularly preferably a fragrance containing 30% by mass or more of the fragrance component selected from the above (i) to (iv), more preferably 50% by mass or more, and further preferably 70% by mass. As described above, the fragrance is particularly preferably 80% by mass or more, most preferably 90% by mass or more.

  From the viewpoint of stability in the composition, the total content of the fragrance component (ii) + the fragrance component (iii) + the fragrance component (iv) is 20 to 90 mass% in the component (a). It is preferably 50 to 80% by mass. In addition, the mass ratio of the fragrance component (ii) / the fragrance component (iii) in the component (a) is preferably 2/8 to 8/2, and preferably 7/3 to 3/7. Further preferred.

  In addition to the above fragrance components, the component (a) of the present invention can contain a fragrance component having a log Pow of -0.5 or more and less than 2.0, a diluent, and a retention agent. Preferable examples of the fragrance component having a log Pow of −0.5 or more and less than 2.0 include phenylethyl alcohol, cis-3-hexenol, helional, benzaldehyde, dimethylbenzylcarbinyl acetate, maltol, coumarin, anisaldehyde and the like. be able to. In addition, preferable examples of the diluent and the retention agent include dipropylene glycol, palmitic acid isopropyl ester, diethyl phthalate, pendyl benzoate, liquid paraffin, isoparaffin, and oil. The mass ratio of the fragrance component and the preservative is preferably 1/0 to 2/8.

[Component (b)]
The component (b) of the present invention is a polysaccharide derivative in which part or all of the hydrogen atoms of the hydroxy group of the polysaccharide are substituted with the group (b1). In addition, the hydrogen atom of the hydroxy group in group (b1) may be further substituted with group (b1).

  Polysaccharides include cellulose, guar gum, starch, bullulan, dextran, fructan, mannan, agar, carrageenan, chitin, chitosan, pectin, alginic acid, hyaluronic acid, etc .: these include alkyl groups such as methyl and ethyl groups, hydroxy Derivatives in which a hydroxyalkyl group such as an ethyl group or a hydroxypropyl group, a carboxymethyl group, or the like is substituted may be mentioned. These substituents can be substituted singly or in combinations in the constituent monosaccharide residues. Examples of derivatives of these polysaccharides include hydroxyalkyl (carbon number 1 to 3) cellulose, alkyl (carbon number). 1-3) Cellulose, hydroxyalkyl (carbon number 1-3) starch, alkyl (carbon number 1-3) starch, carboxymethylated starch, hydroxyalkyl (carbon number 1-3) guar gum, alkyl (carbon number 1-3) ) Guar gum and the like. As the polysaccharide of the present invention, cellulose, starch, hydroxyalkyl (carbon number 1 to 3) cellulose, and alkyl (carbon number 1 to 3) cellulose are preferable, and hydroxyethyl cellulose is particularly preferable. In the polysaccharide derivative, the substitution degree of the alkyl group or carboxymethyl group is preferably 0.01 to 3.0, more preferably 0.1 to 3, particularly preferably 1 to 3, per constituent monosaccharide residue, Most preferred is 1.5 to 2.8. In addition, the substituent of the polysaccharide derivative may be further substituted with a hydroxy group of hydroxyethyl group or hydroxypropyl group to form, for example, a polyoxyethylene chain. In that case, the number of hydroxyalkyl groups per constituent monosaccharide residue can exceed 3.0. The average number of introduced hydroxyalkyl groups per constituent monosaccharide residue is preferably 0.1 to 10.0, more preferably 0.5 to 5.0, and particularly preferably 1.0 to 3.5. The weight average molecular weight of these polysaccharides is preferably 10,000 to 10,000,000, more preferably 50,000 to 5,000,000, particularly preferably 100,000 to 2,000,000, and most preferably 100,000 to 1,000,000.

In the group (b1), R ¹ is preferably ethylene group, propylene group, trimethylene group, 2-hydroxytrimethylene group, 1-hydroxytrimethylene group, 1-oxoethylene group, 1-oxotrimethylene group, 1- It is a methyl-2-oxoethylene group, and 2-hydroxytrimethylene group and 1-hydroxytrimethylene group are particularly preferable. A is preferably an alkylene group having 2 or 3 carbon atoms which may be substituted with a hydroxy group or an oxo group. Specifically, ethylene group, propylene group, trimethylene group, 2-hydroxytrimethylene group, 1-hydroxy Examples thereof include a methylethylene group, a 1-oxoethylene group, a 1-oxotrimethylene group, and a 1-methyl-2-oxoethylene group, and an ethylene group and a propylene group are preferable. The average added mole number of (—OA—) represented by a is preferably 8 to 120, more preferably 10 to 60, and particularly preferably 10 to 20 from the viewpoint of the adsorptivity of the component (a). Moreover, a pieces of A may be the same or different. B is an ether group (—O—), a carboxyl group (—COO—), or an oxycarbonyl group (—OCO—), preferably an ether group. R ² is preferably an alkyl group having 5 to 25 carbon atoms and further 6 to 20 carbon atoms which may be substituted with a hydroxy group, or 2-sulfoethyl group, 3-sulfopropyl group, 3-sulfo-2- Although it is a hydroxypropyl group and 2-sulfo-1- (hydroxymethyl) ethyl group, an alkyl group, especially a linear alkyl group is preferable from the viewpoint of stability. Specifically, octyl group, decyl group, dodecyl group, tetradecyl group, hexadecyl group, octadecyl group, hexyldecyl group, octyldodecyl group and the like are preferable.

  In the component (b) of the present invention, the degree of substitution with the group (b1) is preferably 0.0001 to 1.0, more preferably 0.0005 to 0.5, more preferably 0.001 to 0 per constituent monosaccharide residue. .1 is particularly preferred, and 0.001 to 0.05 is most preferred.

  In the component (b) of the present invention, the hydrogen atom of the hydroxy group of the polysaccharide is substituted with one or more groups selected from the following groups (b2), (b3) and (b4) in addition to the group (b1) May be. Moreover, the hydrogen atom of the hydroxy group in group (b1)-(b4) may be further substituted by group (b1)-(b4).

Group (b2): C1-C5 sulfoalkyl group which may be substituted with a hydroxy group or a salt group thereof (b2) includes 2-sulfoethyl group, 3-sulfopropyl group, 3-sulfo-2- Examples thereof include a hydroxypropyl group. Among them, a 3-sulfo-2-hydroxypropyl group is preferable from the viewpoint of stability and production. All or part of these groups (b2) may be a salt with a group 1 or group 2 element such as Na, K, Ca or Mg, an amine or an organic cation such as ammonium. The degree of substitution with these groups (b2) is preferably in the range of 0 to 1.0, more preferably 0 to 0.8, especially 0 to 0.5 per constituent monosaccharide residue.
Group (b3): a carboxyalkyl group having 2 to 6 carbon atoms which may be substituted with a hydroxy group, or a salt thereof (b3) includes a carboxymethyl group, a carboxyethyl group, a carboxypropyl group, and the like. However, a carboxymethyl group is preferable from the viewpoint of stability and production. All or part of these groups (b3) may be a salt with a group 1 or group 2 element such as Na, K, Ca or Mg, an organic cation such as an amine or ammonium. The degree of substitution with these groups (b3) is preferably 0 to 1.0, more preferably 0 to 0.8, and particularly preferably 0 to 0.5 per constituent monosaccharide residue.

  Group (b4): General formula (I)

[In the formula, R ³ represents a linear or branched alkylene group having 1 to 6 carbon atoms which may be substituted with a hydroxy group, and R ⁴ , R ⁵ and R ⁶ may be the same or different, An optionally substituted linear or branched alkyl group having 1 to 3 carbon atoms is represented, and X ⁻ represents a hydroxy ion, a halogen ion or an organic acid ion. ]
R ³ in the cationic group represented by the formula (b4) is preferably one having 2 or 3 carbon atoms, specifically, ethylene, propylene, trimethylene, 2-hydroxytrimethylene, 1-hydroxymethylethylene or the like. preferable.

Examples of R ⁴ , R ⁵ and R ⁶ in the group (b4) include a methyl group, an ethyl group, a propyl group, and a 2-hydroxyethyl group, and among them, a methyl group and an ethyl group are preferable.

In the group (b4), the halogen ion represented by X ⁻ is a chlorine ion, bromine ion, iodine ion or the like, and the organic acid ion is CH ₃ COO ⁻ , CH ₃ CH ₂ COO ⁻ , CH ₃ (CH ₂ ). ₂ COO _2- ^{and the} like. X ⁻ is preferably a hydroxy ion, a chlorine ion or a bromine ion.

  The degree of substitution with these groups (b4) is preferably in the range of 0 to 0.5, particularly 0 to 0.3 per constituent monosaccharide residue.

The component (b) of the present invention is, for example, a polysaccharide represented by the general formula (II)
_{^{R 7 - (OA) a -B}} -R 2 (II)
[Wherein R ⁷ is an epoxidized alkyl group having 3 to 6 carbon atoms, a linear or branched halogenated alkyl group having 1 to 6 carbon atoms which may be substituted with a hydroxy group, a carboxy group or a carbon number 2 to 6 carboxyalkyl groups or derivatives thereof are shown, and a, A, B and R ² have the same meaning as described above. ]
By reacting with a polyoxyalkylene agent (b1-1) having a structure represented by: or further selected from the following (b2-1), (b3-1) and (b4-1) It can be produced by reacting with a compound.
(B2-1): Sulfonation selected from vinylsulfonic acid, haloalkanesulfonic acid having 1 to 5 carbon atoms which may be substituted with a hydroxy group, sulfonic acid having an epoxy group having 2 to 6 carbon atoms and salts thereof Agent (b3-1): Carboxylating agent (b4-1) selected from halogenated carboxylic acids having 2 to 6 carbon atoms and salts thereof optionally substituted with a hydroxy group: Formula (III)

[Wherein R ⁸ represents an epoxidized alkyl group having 3 to 6 carbon atoms, or a linear or branched halogenated alkyl group having 1 to 6 carbon atoms which may be substituted with a hydroxy group, and R ⁴ , R ⁵ , R ⁶ and X ⁻ have the same meaning as described above. ]
That is, the component (b) of the present invention is optionally a polysaccharide hydroxy group in addition to the reaction with the polyoxyalkylene agent having the structure represented by the general formula (II). Polyoxyalkylenation of all hydrogen atoms of the group [introduction of the group (b1)] or partial hydrogenation of the hydrogen atom [introduction of the group (b1)] and sulfonation as necessary [Introduction of the group (b2)], carboxylation [introduction of the group (b3)] and cationization [introduction of the group (b4)]. These polyoxyalkylenation reaction, sulfonation reaction, carboxylation reaction and cationization reaction may be performed in any order, and the reactions 2 to 4 may be performed simultaneously. The reaction is preferably performed in the order of carboxylation reaction and sulfonation reaction.

  The most preferred component (b) is a polysaccharide derivative substituted only with the group (b1).

  In addition, the (b) component of this invention can be manufactured by the method etc. as described in international publication 00/73351 pamphlet.

  The weight average molecular weight of the component (b) is preferably 10,000 to 10,000,000, more preferably 50,000 to 5,000,000, particularly preferably 100,000 to 2,000,000, and most preferably 100,000 to 1,000,000. The weight average molecular weight can be determined by high performance anion exchange chromatography (HPAEC) with a pulsed amperometric detector or capillary electrophoresis.

[Perfume particles and aqueous composition]
In the fragrance particles of the present invention, the component (a) / component (b) is 1/1 to 200/1, preferably 3/1 to 150/1, more preferably 11/1 to 150/1, still more preferably 15 /. 1 to 150/1, particularly preferably 30/1 to 100/1, most preferably 45/1 to 100/1. In addition, it is preferably a capsule-like particle having the component (b) as an outer shell and encapsulating the component (a), and the capsule particles are O / W type emulsion particles emulsified in water. To preferred.

  As a method for obtaining such emulsified particles, the component (a) is mixed with a solution obtained by mixing the component (b) with water (hereinafter referred to as water (1)) and / or a water-soluble solvent (hereinafter referred to as component (c)). After adding, it is preferable to employ a method of further adding water (hereinafter referred to as water (2)). The blending amount of water (1) is preferably 1/100 to 1/2, more preferably 1/50 to 1/5 in terms of mass ratio with respect to the total amount of water (1) and water (2). In the fragrance particles after the addition of water (2), the ratio of component (b) is such that component (b) / [water (1) + water (2) + (c) component from the point of forming capsule-shaped particles ] Is preferably 1/500 to 1/5, more preferably 1/200 to 1/50 in terms of mass ratio. Preferred compounds as the component (c) are ethanol, propanol, isopropanol, ethylene glycol, propylene glycol, glycerin and 1,3-butanediol, and particularly glycerin, ethylene glycol, propylene glycol and 1,3-butanediol. Is preferred. In such a water-soluble solvent, the mass ratio of component (c) / component (a) is preferably 1/300 to 100/1, more preferably 1/100 to 50/1, and particularly preferably 1/30 to It is mixed with the component (b) at a mass ratio of 20/1. The fragrance particles prepared by the above method have an average particle diameter of preferably 0.5 to 25 μm, more preferably 0.8 to 20 μm, and particularly preferably 1.0 to 15 μm, from the viewpoint that they can be efficiently adsorbed to the fiber. preferable.

  The component (a) is slowly added to the mixed solution of the component (b) and water (1) and / or the component (c), and then heated with stirring. The temperature is 30 to 90 ° C, preferably 40 to 80 ° C, particularly preferably 50 to 70 ° C. Stirring is continued for 0.1 to 3 hours, preferably 0.1 to 2 hours, particularly preferably 0.2 to 1 hour, and cooled to room temperature. Next, by slowly adding water (2) under stirring, it is possible to obtain an O / W emulsion composition in which the component (b) is used as an outer shell and the capsule-like particles embedding the component (a) are emulsified. .

  The content of the component (a) in the O / W type emulsion composition is preferably 1 to 60% by mass, more preferably 5 to 60% by mass, particularly preferably 10 to 45% by mass, and (b) The content of the component is preferably 0.1 to 10% by mass, more preferably 0.1 to 5% by mass, and particularly preferably 0.2 to 1% by mass. Furthermore, content of (c) component becomes like this. Preferably it is 1-60 mass%, More preferably, it is 2-50 mass%, Most preferably, it is 5-40 mass%.

  The aqueous composition of the present invention contains the perfume particles of the present invention and a surfactant. The content of the surfactant in the aqueous composition is preferably 0.5 to 60% by mass, more preferably 3 to 50% by mass, and particularly preferably 10 to 40% by mass. In the aqueous composition, the perfume particles of the present invention can be stably present. Further, since the perfume particles of the present invention have an excellent property that the adsorptivity to cellulosic fibers is improved, it is preferably applied to a treating agent for a textile product, in particular, a textile softener composition, a washing agent for clothing. By applying it to the composition, it can be blended stably without being affected by the type and amount of the surfactant and the type and amount of the fragrance, and also has an excellent effect of promoting the adsorption of the fragrance to the fiber product. be able to.

[Textile softener composition]
The fabric softener composition of the present invention contains the fragrance particles of the present invention, and further contains 1 or 2 hydrocarbon groups having 12 to 36 carbon atoms and the remaining alkyl group having 1 to 3 carbon atoms in the molecule. , A tertiary amine that is a hydroxyalkyl group having 2 or 3 carbon atoms, or a benzyl group, an acid salt thereof, or a quaternized product thereof (hereinafter referred to as component (d)), and water are preferable.

  Specific examples of preferable component (d) include compounds represented by the following general formula (IV).

[Wherein R ^1d is a hydrocarbon group having 12 to 36 carbon atoms, preferably 13 to 22 carbon atoms, particularly preferably 15 to 17 carbon atoms, preferably an alkyl group or an alkenyl group, and Y is —COO—, —OCO—, It is a group selected from —NHCO—, —CONH—, and —O—, and R ^2d is an alkylene group having 1 to 3 carbon atoms. R ^3d and R ^4d are each an alkyl group having 1 to 3 carbon atoms, a hydroxyalkyl group having 2 or 3 carbon atoms, or a group selected from R ^1d — [Y—R ^2d ] —, R ^5d is a hydrogen atom, An alkyl group having 1 to 3 carbon atoms, or a hydroxyalkyl group having 2 or 3 carbon atoms. Z ⁻ is an organic or inorganic anion, preferably a chloro ion, an alkyl sulfate ion having 1 to 3 carbon atoms, or a benzene sulfonate ion substituted with 1 to 3 hydrocarbon groups having 1 to 3 carbon atoms. is there. ]
In addition to the component (d), the fabric softener composition of the present invention contains a nonionic surfactant (hereinafter referred to as component (e)) and / or an anionic surfactant (hereinafter referred to as component (f)). It is preferable from the viewpoint of storage stability.

  (E) As a component, the polyoxyethylene alkyl ether which has 1 or more of C8-20 alkyl group or alkenyl group is preferable, and especially the nonionic surfactant represented with General formula (V) is favorable. .

^R1e- T-[( ^R2eO ) _p- H] _q (V)
[Wherein, R ^1e is an alkyl group or alkenyl group having 10 to 18 carbon atoms, preferably 12 to 18 carbon atoms, and R ^2e is an alkylene group having 2 or 3 carbon atoms, preferably an ethylene group. p represents a number of 2 to 100, preferably 5 to 80, particularly preferably 20 to 60. T is —O—, —CON— or —N—, q is 1 when T is —O—, and q is 2 when T is —CON— or —N—. ]
Preferred examples of the compound represented by the general formula (V) include compounds represented by the following general formula (V-1) or (V-2).

^{_{R 1e -O- (C 2 H 4}} O) r -H (V-1)
[Wherein R ^1e has the above-mentioned meaning. r is a number from 8 to 100, preferably from 20 to 80. ]
^{_{R 1e -O- (C 2 H 4}} O) s (C 3 H 6 O) t -H (V-2)
[Wherein R ^1e has the above-mentioned meaning. s and t are each independently a number of 2 to 40, preferably 5 to 40, and ethylene oxide and propylene oxide may be random or block adducts. ]
(E) As another preferable example of a component, the ester compound of a C8-C22 saturated or unsaturated fatty acid and a polyhydric alcohol can be mentioned. Specifically, triglyceride, diglyceride, monoglyceride, and mono, di, triester and sorbitan ester of pentaerythritol are preferable.

  The component (f) is preferably a fatty acid or a salt thereof, specifically caprylic acid, capric acid, lauric acid, myristic acid, palmitic acid, stearic acid, oleic acid, or a mixture thereof, particularly lauric acid, One or more selected from stearic acid and oleic acid are good. Also preferred are fatty acids having an alkyl composition derived from coconut oil, palm oil, palm kernel oil, and beef tallow.

  In the softener composition of the present invention, it is desirable to add an inorganic salt such as calcium chloride from the viewpoint of storage stability. However, although surfactants such as fatty acid salts include sodium salts and potassium salts, inorganic salts mixed into the composition by using such surfactants are not subject to the above restrictions.

  The softener composition of the present invention may be blended with components such as silicone or pigment that are usually blended in fiber treatment agents.

  In the softening agent composition of the present invention, the component (a) constituting the fragrance particles of the present invention is 0.01 to 10% by weight, preferably 0.1 to 5% by weight, particularly preferably 0, in the softening agent composition. It is preferable to contain 2-3 mass%. Further, the component (d) is preferably contained in an amount of 3 to 40% by mass, more preferably 5 to 35% by mass, and particularly preferably 10 to 30% by mass from the viewpoint of the flexibility effect. From the viewpoint of stability, the component (e) is preferably 0.1 to 15% by mass, more preferably 0.1 to 10% by mass, particularly preferably 0.5 to 5% by mass, and the component (f) is preferable. Is preferably contained in an amount of 0.1 to 10% by mass, more preferably 1 to 8% by mass. Furthermore, the content of the inorganic salt is preferably 0.001 to 10,000 mg / kg from the viewpoint of stability.

  As the method for producing the softener composition of the present invention, the (d) component, (e) is added to the O / W type emulsion composition in which the capsule-like fragrance particles containing the component (a) produced by the above-described method are emulsified. ) Component, (f) component, a method of adding inorganic salt and balance water and stirring and mixing, or (d) component, (e) component, (f) component, inorganic salt and balance softener containing water A method of preparing the composition in advance and then adding the O / W emulsion composition can be mentioned. In the present invention, the latter method is preferably employed from the viewpoint of the stability of the perfume particles.

[Cleaning composition for clothing]
The garment cleaning composition of the present invention contains the fragrance particles of the present invention, and further contains a surfactant selected from an anionic surfactant, a nonionic surfactant and an amphoteric surfactant, and water. Is preferred.

  Examples of the anionic surfactant include linear alkylbenzene sulfonic acid having an alkyl chain having 10 to 18 carbon atoms, alkyl sulfate ester, polyoxyalkylene alkyl ether sulfate ester, α-sulfo fatty acid alkyl (for example, methyl) ester, carbon number 8 Salts such as ~ 20 fatty acids are preferred.

  Examples of the counter ion of the anionic surfactant include alkali metals such as sodium and potassium, alkaline earth metals such as magnesium, and / or alkanolamines such as mono-, di-, and triethanolamine. Particularly, alkanolamine is used. This is preferable because the liquid stability is improved. In that case, 5-50 mass% is preferable and, as for content of the anionic surfactant in a cleaning composition, 10-50 mass% is still more preferable.

As the nonionic surfactant, those shown in the following (1) to (4) can be used.
(1) having an alkyl group derived from a linear primary alcohol or linear secondary alcohol having an average carbon number of 8 to 20, or an alkyl group or alkenyl group derived from a branched alcohol, and ethylene oxide (hereinafter referred to as EO) Polyoxyethylene alkyl or alkenyl ether added with 1 to 20 moles on average.
(2) Polyoxy having an alkyl group or an alkenyl group having an average carbon number of 8 to 20 and adding 1 to 15 mol of EO on average and 1 to 5 mol of propylene oxide (hereinafter referred to as PO) on average Alkylene alkyl or alkenyl ether. In this case, EO and PO may be either random addition or block addition. In particular, the compound represented by the formula (VI) is preferable in that a high detergency against Eli, sore and mouth dirt can be obtained.

R ¹¹ -O (EO) _u (PO) _v (EO) _w H (VI)
[Wherein, R ¹¹ represents a linear alkyl group or alkenyl group having 8 to 20 carbon atoms. EO represents an oxyethylene group, and PO represents an oxypropylene group. u, v, and w represent average addition mole numbers, and are u> 0, v = 1-4, w> 0, u + v + w = 6-14, u + w = 5-12. Preferably, u + v + w = 7 to 14, u + w = 6 to 12, and v = 1 to 2. ]
(3) An alkyl polysaccharide surfactant represented by the following general formula (VII):

R ¹² − (OR ¹³ ) _i G _j (VII)
[Wherein R ¹² is a linear or branched alkyl group having 8 to 18 carbon atoms, an alkenyl group or an alkylphenyl group, R ¹³ is an alkylene group having 2 to 4 carbon atoms, and G is a reduction having 5 or 6 carbon atoms. Residues derived from sugar, i is the number of average values 0-6, j is the number of average values 1-10. ]
(4) Fatty acid alkanolamide, polyhydroxy fatty acid amide In particular, it is preferable to contain the polyoxyalkylene alkyl ether of (1) and / or (2) in terms of oily soil detergency, and to contain (2) Is more preferable. Moreover, 5-50 mass% is preferable and, as for content of the nonionic surfactant in a cleaning composition, 10-50 mass% is especially preferable.

  As the amphoteric surfactant, alkylcarbobetaine, alkylsulfobetaine, alkylamidohydroxysulfobetaine, alkylamidoamine type betaine, alkylimidazoline type betaine and the like can be blended.

  The cleaning composition for clothing of the present invention preferably contains a nonionic surfactant and an anionic surfactant from the viewpoint of cleaning effect, and the mass ratio of nonionic surfactant / anionic surfactant is 100. / 0 to 100/10 is preferable, 100/1 to 100/10 is more preferable, and 100/1 to 100/5 is still more preferable.

  Moreover, it is preferable that the detergent composition for clothes of this invention contains (d) component as described in the column of the said softening agent composition from the objective of improving the texture of clothes.

  In the present invention, for the purpose of improving the detergent performance and particularly improving the cleaning ability of the surfactant which is the main component of the detergent, a builder selected from a water-soluble inorganic compound, a water-insoluble inorganic compound and an organic compound is blended. Is preferred.

  Examples of the water-soluble inorganic compound builder include phosphates (tripolyphosphate, pyrophosphate, metaphosphate, trisodium phosphate, etc.), silicates, carbonates, and the like. Among these, phosphate is preferable because it has all three functions.

  Examples of the water-insoluble inorganic compound builder include aluminosilicate (A-type zeolite, P-type zeolite, X-type zeolite, amorphous aluminosilicate, etc.), crystalline silicate, and the like. Among these, A-type zeolite having a particle size of 3 μm or less (more preferably 1 μm or less) is preferable.

  Examples of the organic compound builder include carboxylate, organic carboxylic acid (salt) polymer (acrylic acid polymer and copolymer, polyvalent carboxylic acid polymer and copolymer, glyoxylic acid polymer) and the like. Of these, organic carboxylic acid (salt) polymers are preferred.

  The counter ion of the water-soluble inorganic compound, water-insoluble inorganic compound, or organic compound is preferably an alkali metal salt or an amine, and particularly preferably sodium and / or potassium, monoethanolamine, or diethanolamine.

  In the garment cleaning composition of the present invention, the component (a) constituting the fragrance particles of the present invention is 0.05 to 10% by mass, preferably 0.1 to 3% by mass, particularly preferably 0, in the composition. It is preferable to contain 2 to 2% by mass. The content of the anionic surfactant in the composition is preferably 5 to 50% by mass, particularly preferably 10 to 50% by mass, while the content of the nonionic surfactant in the composition is 5 to 50%. % By mass is preferable, and 10 to 50% by mass is particularly preferable.

In addition, the content of the water-soluble inorganic compound builder is preferably 10 to 50% by mass, more preferably 15 to 45% by mass, and still more preferably 20 to 40% by mass in the detergent composition. The content of the water-insoluble inorganic compound builder is preferably 5 to 50% by mass, more preferably 10 to 45% by mass, and still more preferably 15 to 40% by mass in the cleaning composition. The content of the organic compound builder is preferably 0.1 to 20% by mass in the cleaning composition, more preferably 0.3 to 15% by mass, and still more preferably 0.5 to 10% by mass.
The detergent composition for clothing of the present invention preferably contains water in an amount of 3 to 50% by mass, particularly 5 to 40% by mass from the viewpoint of storage stability.

  Furthermore, in the cleaning composition of the present invention, components that are conventionally known to be blended in detergents can be blended as optional components. Examples of such optional components include polyvalent carboxylates having divalent metal ion scavenging ability; polyacrylates, carboxymethylcellulose, polyethylene glycol having an average molecular weight of 5000 or more, acrylic acid-maleic acid copolymers, or salts thereof Anti-staining agent or dispersant, color transfer inhibitor such as polyvinyl pyrrolidone, phase adjuster such as polyoxyalkylene benzyl ether, polyoxyalkylene phenyl ether or detergency improver, amylase, protease, lipase, other cellulases, etc. Bleaching activators such as enzymes, bleaching agents such as sodium percarbonate or sodium perborate, tetraacetylethylenediamine, compounds represented by general formulas (I-2) to (I-7) of JP-A-6-316700, fluorescence Dye, according to claim 1 of JP-A-10-60480 Flexible base, butylhydroxytoluene, antioxidants such as distyrenated cresol such recone may be formulated Choawazai, water-soluble dyes, antimicrobial preservatives and the like.

  As a method for producing the detergent composition for clothing of the present invention, an anionic surfactant is added to an O / W emulsion composition in which capsule-like fragrance particles containing the component (a) produced by the above method are emulsified. A surfactant selected from a nonionic surfactant and an amphoteric surfactant, a water-soluble inorganic compound builder, a water-insoluble inorganic compound builder, an organic compound builder, other components, and a method of mixing and stirring water, or A detergent selected from an anionic surfactant, a nonionic surfactant and an amphoteric surfactant, a water-soluble inorganic compound builder, a water-insoluble inorganic compound builder, an organic compound builder, other ingredients, and a washing agent for water A method of adding the O / W emulsion composition after preparing the composition in advance can be mentioned. In the present invention, the latter method is used from the viewpoint of the stability of the perfume particles. It is preferable to adopt a.

  The compounding components used in the examples are summarized below.

<Blending ingredients>
-(A) component The fragrance | flavor of (a-1)-(a-6) of Table 1 was used.

(B) Component (b-1): Polyoxyalkylenated hydroxyethyl cellulose derivative produced in Synthesis Example 1 below (b-2): Polyoxyalkylenated hydroxyethyl cellulose derivative produced in Synthesis Example 2 below (C) Component (c-1): Ethanol (c-2): Glycerin (c-3): Propylene glycol (d) Component (d-1): N- (3-alkanoylaminopropyl) -N- ( 2-alkanoyloxyethyl) -N-methylamine hydrochloride (alkanoyl group: residue obtained by removing hydroxyl group from hardened tallow fatty acid)
(D-2): N, N-di (2-alkanoyloxyethyl) -N-methyl-N- (2-hydroxyethyl) ammonium methyl sulfate (alkanoyl group: residue obtained by removing hydroxyl group from uncured tallow fatty acid)
(D-3): N, N-di (2-alkanoyloxyethyl) -N, N-dimethylammonium methyl sulfate (alkanoyl group: residue obtained by removing hydroxyl group from hardened tallow fatty acid)
(D-4): N, N-dialkyl-N, N-dimethylammonium chloride (alkyl group: alkyl having 12 and 14 carbon atoms mixed at a mass ratio of 1/1)
(D-5): N- (3-stearoylaminopropyl) -N, N-dimethylamine hydrochloride / (e) component (e-1): polyoxyethylene (EO average added mole number: 20) lauryl ether ( e-2): Softanol 300 (manufactured by Nippon Shokubai Co., Ltd.)
(E-3): Hardened tallow fatty acid monoglyceride (e-4): Polyoxyethylene (EO average addition mole number: 10) Lauryl ether (e-5): Polyoxyethylene (EO average addition mole number: 8) Myristyl ether (E-6): polyoxyethylene (EO average addition mole number: 5) polyoxypropylene (PO average addition mole number: 3) alkyl ether (alkyl group: lauryl group / myristyl group = 8/2 (mass ratio))
(E-7): Polyoxyethylene (EO average addition mole number: 7) Tridecyl ether (e-8): Lauryl glycoside (e-9): Diethylene glycol monobutyl ether (f) Component (f-1): Carbon Sulfate ester sodium salt (f-2) having dowelyl alkyl of number 28: dodecylbenzenesulfonic acid sodium salt (f-3): hydrocarbon (1-decene / 1-dodecene = 1/1 (mass ratio)) hydroformyl A product obtained by adding 2 mol of ethylene oxide to the alcohol obtained by sulfation, sulfating with trioxide ions and neutralizing with sodium hydroxide.
(F-4): Sodium laurate / (g) component: Other surfactant
(G-1): N-lauryl-N, N-dimethylamine oxide (g-2): N-lauryl-N, N-dimethyl-N- (2-hydroxyethyl) sulfobetaine (h) component: other Additive
(H-1): Blue No. 1 (h-2): Proxel BDN manufactured by Zeneca Corporation
(H-3): Phenoxyethanol (h-4): Calcium chloride Synthesis Example 1: Synthesis of (b-1) Hydroxyethyl cellulose having a weight average molecular weight of 200,000 and a hydroxyethyl group substitution degree of 2.5 (NATROZOL 250G, Hercules) (Manufactured) 160 g, water-containing 80% isopropyl alcohol 1280 g, and 48% sodium hydroxide aqueous solution 9.8 g were mixed to prepare a slurry, which was stirred at room temperature for 30 minutes in a nitrogen atmosphere. In this solution, the following formula (b1-1-1)

31.8 g of the compound represented by the above formula was added and reacted at 80 ° C. for 8 hours to carry out polyoxyalkyleneation. After completion of the reaction, the reaction solution was neutralized with acetic acid, and the reaction product was filtered off. The reaction product was washed twice with 700 g of isopropyl alcohol and then dried under reduced pressure at 60 ° C. for a whole day and night to obtain 152 g of a polyoxyalkylenated hydroxyethyl cellulose derivative (b-1). The degree of substitution of the substituent (b1) containing a polyoxyalkylene group in the obtained hydroxyethylcellulose derivative was 0.014.

Synthesis Example 2: Synthesis of (b-2) 80 g of hydroxyethyl cellulose having a weight average molecular weight of 500,000 and a hydroxyethyl group substitution degree of 1.8 (HEC-QP-4400H, manufactured by Union Carbide), 640 g of water-containing 80% isopropyl alcohol, A slurry solution was prepared by mixing 5.34 g of 48% aqueous sodium hydroxide solution, and stirred at room temperature for 30 minutes in a nitrogen atmosphere. To this solution, 12.78 g of the compound represented by the above formula (b1-1-1) was added and reacted at 80 ° C. for 8 hours to carry out polyoxyalkyleneation. After completion of the reaction, the reaction solution was neutralized with acetic acid, and the reaction product was filtered off. The reaction product was washed twice with 500 g of isopropyl alcohol and then dried overnight at 60 ° C. under reduced pressure to obtain 73 g of a polyoxyalkylenated hydroxyethyl cellulose derivative (b-2). The degree of substitution of the substituent (b1) containing a polyoxyalkylene group in the obtained hydroxyethylcellulose derivative was 0.004.

Example 1
Using each component shown in Table 2, fragrance particles (fragrance particles 1 to 10) having the composition shown in Table 2 were prepared by the preparation method described below. Further, in place of the component (b) in Table 2, polyoxyethylene (12) dodecyl ether was used in an amount corresponding to 5% by mass, and comparative fragrance particles (comparative fragrance particles 1 for each of the fragrance particles 1 to 10 were used in the same manner. To 10).

  Using the obtained fragrance particles 1 to 10 and the corresponding fragrance particles 1 to 10 corresponding to each, the fibers were processed by the following method to evaluate the strength of the fragrance from the cotton cloth.

  As a result, the cotton fabric treated with the fragrance particles 1 to 6 had a stronger scent than the cotton fabric treated with the comparative fragrance particles 1 to 6. In particular, when the fragrance particles 3 to 6 were used, the effect was observed. However, the intensity of the fragrance from the cotton fabric treated with the fragrance particles 7 to 10 was comparable to the intensity of the fragrance from the cotton fabric treated with the comparative fragrance particles 7 to 10.

<Perfume particle preparation method>
Fragrance particles were prepared so that the mass of the component (a) was 80 g. To a 100 mL commercial glass beaker in a 25 ° C. water bath, the necessary amount of the component (b), and the components (c), (e), and (h) were added as necessary. Next, a necessary amount of ion exchange water corresponding to 15/100 (25 ° C.) was added with stirring, and further stirred at 25 ° C. for 1 hour to dissolve the component (b). Next, component (a) (25 ° C.) was slowly added, and the mixture was stirred at 25 ° C. for 1 hour, and then the temperature of the formulation was raised to 60 ° C. in a water bath and further stirred for 1 hour. The composition obtained by the above method was immersed in a 25 ° C. water bath, cooled to 25 ° C. with stirring, the remaining ion-exchanged water (25 ° C.) was added with stirring, and the mixture was further stirred for 30 minutes. . If necessary, the pH was adjusted with hydrochloric acid or caustic soda to obtain the perfume particles of the present invention. In the above process, a turbine type stirring blade having three blades each having a length of 1.5 cm was used, and the rotation speed was 500 rpm in all the steps. As a result of investigating the type of emulsification by a known method, the perfume particles 1 to 10 obtained by the above method were all O / W type emulsions. However, as perfume particles 9, O / W type perfume particles were observed, but there were other perfume oil droplets that were not particles. Moreover, the fragrance | flavor particle | grains 10 were the gum-like liquid with which the emulsification particle | grains were seen but there was no fluidity | liquidity.

<Processing method>
Commercial cotton underwear (Gunze Co., Ltd., 100% cotton) was washed with a commercial detergent using a 2-tank washing machine (Toshiba Co., Ltd. 2-tank washing machine VH-360S1) (Kao Co., Ltd. Attack) The detergent concentration was 0.0667% by mass, tap water was used, the bath ratio was 17, the water temperature was 20 ° C., washed for 10 minutes, rinsed with running water for 15 minutes, dehydrated for 5 minutes), and naturally dried. The underwear is washed again using a commercially available detergent in a fully automatic washing machine (NA-F50K1 manufactured by Matsushita Electric Industrial Co., Ltd.) (Kao Co., Ltd. attack, detergent concentration 0.0667 mass%, using tap water, bath ratio 17 Water volume 30 L, water temperature 20 ° C., washing 10 minutes, rinse twice, dehydration 40 seconds). At the final rinsing stage, 1 mL of the composition shown in Table 2 or the comparative composition was added, dehydrated after stirring for 5 minutes, and then each test cloth was spread and laid flat and dried at 20 ° C. and 45% RH. Leave for 12 hours to dry naturally.

* 1: Benzylbenzoate (used as a fragrance diluent)
* 2: pH was adjusted at 20 ° C. using a 1/10 N aqueous sulfuric acid solution and a 1/10 N aqueous sodium hydroxide solution.

Example 2
Using the fragrance particles 1 to 10 obtained in Example 1, the softening agent compositions shown in Table 3 were prepared by the method described below to obtain softening agent compositions 1 to 12. In addition, as a comparative composition, instead of the fragrance particles, comparative fragrance particles 1 to 10 were blended so that the fragrance particle contents in the softener composition were the same (softener compositions 1 to 12, respectively. Comparative softener compositions 1-12) were prepared in the same manner.

  50 g of each of the softener compositions 1 to 12 and the comparative softener compositions 1 to 12 were placed in a glass bottle and left in a thermostatic chamber at −20 ° C. for 12 hours. Next, it was left to stand at room temperature for 12 hours to melt. This cycle was defined as 1 cycle, and the appearance after 5 cycles was visually observed.

  As a result, the softener compositions 1-8 were less viscous than the comparative softener compositions 1-8. In particular, softener compositions 3 to 8 had a lower viscosity. However, softener compositions 9-11 were comparable to comparative softener compositions 9-11. The softening agent composition 12 was more viscous than the comparative softening agent composition 12.

<Method for preparing softener composition>
A softener composition was prepared so that the finished mass of the composition shown in Table 3 was 250 g. A 300 mL commercial glass beaker was charged with blended water (ion exchange water with 3 mg / kg of sodium hypochlorite added) corresponding to 90% by mass of the required amount. The temperature was raised to 60 ° C. While stirring, component (c), component (e), and component (f) were added as necessary. Next, the melted component (d) was slowly added. After stirring for 15 minutes, perfume particles were added. Thereafter, the mixture was stirred for 10 minutes, and other components (component (h)) were added as necessary. After further stirring for 10 minutes, the mixture was cooled to 20 ° C. while cooling. Next, the pH of the composition was adjusted using a 1/10 N aqueous sulfuric acid solution and a 1/10 N aqueous sodium hydroxide solution. The remaining water was then added to a final mass of 250 g and the final softener composition pH was measured. Stirring was carried out at a rotational speed of 400 rpm using a turbine type stirring blade having three blades each having a length of 1.5 cm.

*: Adjusted using pH at 20 ° C., 1/10 N aqueous sulfuric acid solution and 1/10 N aqueous sodium hydroxide solution.

Example 3
Using the components shown in Table 4, liquid detergent compositions 1 to 5 having the compositions shown in Table 4 were prepared. Moreover, the comparative liquid cleaning composition which changed only the fragrance | flavor ((a-3) or (a-4)) instead of the fragrance | flavor particle | grains 3-5, 9, 10 was prepared. ). Using these liquid detergent compositions, cotton cloth was washed by the following washing method, and the intensity of fragrance from the washed cotton cloth was compared. The fragrance strength of the cotton cloth washed with the liquid detergent compositions 1 to 3 was stronger than the cotton cloth treated with the comparative liquid detergent compositions 1 to 3. However, the intensity of the scent of the cotton cloth washed with the liquid detergent compositions 4 and 5 was the same as the intensity of the scent of the cotton cloth washed with the comparative liquid detergent compositions 4 and 5.

<Washing method>
A commercially available cotton underwear (Gunze Co., Ltd., 100% cotton) is a two-tank washing machine (Toshiba Co., Ltd. two-tank washing machine VH-360S1). And a comparative liquid detergent composition (detergent concentration 0.0667% by mass, use of tap water, bath ratio 17, water temperature 20 ° C., wash for 10 minutes, rinse for 15 minutes and then dehydrate for 5 minutes) . After that, it is flatly dried and left to stand for 12 hours under the conditions of 20 ° C. and 45% RH, followed by natural drying.

*: PH was adjusted at 20 ° C. using a 1/10 N aqueous sulfuric acid solution and a 1/10 N aqueous sodium hydroxide solution.

Claims (7)

Fragrance particles containing the following component (a) and component (b) at a mass ratio of (a) component / (b) component = 1/1 to 200/1.
(A) Component: A fragrance containing 20% by mass or more of a fragrance component having a log Pow of 2.0 or more. A polysaccharide derivative substituted with a group (hereinafter referred to as group (b1)) (the hydrogen atom of the hydroxy group in group (b1) may be further substituted with group (b1))
—R ¹ — (OA) _a —B—R ² (b1)
[Wherein, R ¹ represents a linear or branched alkylene group having 1 to 6 carbon atoms which may be substituted with a hydroxy group or an oxo group, and A represents a linear or branched chain group having 1 to 6 carbon atoms. Represents an alkylene group, a represents an average value of 1 to 300, and a a may be the same or different; B represents a group selected from —O—, —COO— or —OCO—, and R ² represents a linear or branched alkyl group having 4 to 30 carbon atoms which may be substituted with a hydroxy group, or a hydroxy group. The C1-C5 sulfoalkyl group which may be substituted by is shown. ]   The component (a) according to claim 1, the component (b) according to claim 1, and water are mixed in a range of (a) component / (b) component (mass ratio) = 1/1 to 200/1. Perfume particles obtained by diluting the resulting mixture with water.   An aqueous composition comprising the fragrance particles according to claim 1 or 2, and a surfactant.   The aqueous composition according to claim 3, wherein the fragrance particles are present in an O / W type emulsified state.   The aqueous composition according to claim 3 or 4, wherein a mixture obtained by mixing (a) component, (b) component, surfactant and water is diluted with water.   The textile softener composition containing the fragrance | flavor particle | grains of Claim 1 or 2. A cleaning composition for clothing containing the fragrance particles according to claim 1.