JPH1053791A - Perfume particle composition - Google Patents

Abstract

PROBLEM TO BE SOLVED: To optimize the fragrance during laundering and the persistence of fragrance on clothing by dry-mixing perfume particles comprising mainly a specified anionic surfactant with a particulate detergent base. SOLUTION: This perfume particle composition is obtained by blending 1-12wt.% perfume component (A) containing a hydrocarbon having at least one double bond in the molecule (e.g. limonene), an aldehyde (e.g. citral), an ester (e.g. benzyl acetate), a lactone (e.g. coumarin), etc., 40-94wt.% anionic surfactant (B) represented by the formula R-OSO3 Na (wherein R is a 6-20C alkyl or alkenyl), e.g. Na salt of decyl sulfate, 3-30wt.% water-insoluble solid particles (C) (e.g. crystalline aluminosilicate particles) having water of crystallization and a mean particle diameter of at most 20μm, and 1-10wt.% water-soluble polymer (D) comprising, e.g. polyacrylic acid, wherein the weight ratio of component B to component D is (5:1) to (50:1). The composition has a particle diameter of 300-1,500μm and a bulk density of 0.6-1.2g/cm<3> .

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to particles containing a fragrance. More specifically, the present invention relates to fragrance particles capable of optimizing the scent of detergent powder, the scent during washing, and the residual scent of clothes after washing when mixed with a granular detergent composition having a high bulk density.

[0002]

2. Description of the Related Art
The detergent composition is blended with a fragrance for the purpose of masking and scenting the original odor of the detergent composition, and for imparting the scent of clothes after washing. However, it is difficult to optimize the scent during washing and the lingering scent of clothes after washing,
A great deal of effort has been put into the development of such fragrances.

On the other hand, in recent years, from the viewpoint of resource saving, high-density concentrated detergents have become mainstream on a worldwide scale from the viewpoint of transport of detergents, convenience of housewives to carry and place, and the like.

[0004] However, high-density granular concentrated detergent (here, high-density refers to those having a bulk specific gravity of 0.5 g / cm ³ or more).
Compared to conventional low-density detergents (having a bulk specific gravity of about 0.3 g / cm ³ ), the content of active ingredients such as surfactants is increased, the density is increased, and the amount used per wash is increased. (For example, from 40 g / 30 liters to 25 g / 30 liters), when perfumed at the same ratio as a conventional low-density detergent, the amount of the fragrance component in the washing liquid and the laundry However, there is a disadvantage that the aroma of the washing liquid and the residual scent on the washed clothes become too weak.

[0005] It is easily conceivable to increase the aroma rate for detergents in order to make up for this drawback. However, in this case, there is a problem that the scent of the detergent powder itself becomes too strong and gives a feeling of discomfort. .

[0006] Previously, we have found that the above problem is solved by using a fragrance composition in which a fragrance component having a specific vapor pressure is mixed, and the disclosure has been made in JP-A-63-101496. However, in the above-mentioned perfume composition, the perfume is specified, and the degree of freedom of perfume combination is reduced. Japanese Patent Application Laid-Open No. 1-193397 discloses a method of including a fragrance with an inclusion compound such as β-cyclodextrin, but the inclusion compound is relatively expensive.

Japanese Patent Application Laid-Open No. 57-171910 discloses a scent particle containing a hydratable substance as a main component.
Japanese Patent Publication No. 209189 discloses a fragrance particle containing hydrophobic inorganic carrier particles as a main component, but could not solve the above problem.

[0008]

DISCLOSURE OF THE INVENTION In view of the above-mentioned situation, the present inventors have intensively studied measures for keeping the fragrance of the detergent composition itself, the fragrance of the washing bath and the residual scent on clothes. As a result, the present inventors have found that this object can be achieved by dry-mixing a fragrance particle containing a specific anionic surfactant as a main component into a granular detergent cloth, and completed the present invention.

That is, the present invention relates to a perfume particle composition which is used by being dry-mixed with a granular detergent composition, comprising the following components:
An object of the present invention is to provide a fragrance particle composition containing (a), (b), (c), (d) and (e). (a) 1 to 12% by weight of a fragrance component (b) 40 to 94% by weight of an anionic surfactant represented by the following formula (I) R-OSO ₃ Na (I) [where R represents 6 to 20 carbon atoms] It represents a linear or branched alkyl or alkenyl group derived from a primary or secondary alcohol. (C) Water-insoluble solid particles having water of crystallization and having an average particle size of 20 μm or less 3 to 30% by weight (d) Water-soluble polymer 1 to 10% by weight [However, the weights of component (b) and component (d) The ratio is (b) :( d) = 5: 1 to 50: 1. (E) 0.1 to 10% by weight of water.

<Component (a)> The fragrance component (a) used in the present invention preferably contains at least one compound selected from the following. Hydrocarbon containing one or more double bonds (-C = C-) in the molecule Example: limonene, dipentene, terpinolene, α-pinene, β-pinene, etc. Aldehyde ・ aliphatic aldehyde eg: decylaldehyde, undecylaldehyde, Dodecyl aldehyde, methyl nonyl acetaldehyde, undecylenaldehyde, etc.-Terpene aldehydes, such as citral, hydroxycitronellal, citronellal, etc.-Aromatic aldehydes, such as benzaldehyde, hexylcinnamic aldehyde, lilial, heliotropin, vanillin, ethyl vanillin, etc. Examples: Liral, mylac aldehyde, etc. Esters: benzyl formate, linalyl formate, citronellyl acetate,
Linalyl acetate, isononyl acetate, geranyl acetate, terpinyl acetate, isobornyl acetate, tricyclodecenyl acetate, benzyl acetate, phenylethyl acetate, styralyl acetate, cinnamyl acetate, hexyl acetate, acetyl eugenol, acetyl isoeugenol, ceryl acetate, o-
t-B. C. H. A. Lactone Example: γ-octalactone, γ-nonalactone, σ-decalactone, coumarin, etc. Phenol derivatives Examples: Eugenol, isoeugenol, thymol, etc. Alcohols having at least one double bond (-C = C-) in the molecule Examples: Santalol, linalool, geraniol, citronellol, dihydromyrcenol, etc. Ethers with at least one double bond (-C = C-) in the molecule Examples: Nerol oxide, rose oxide, linalool oxide, etc. Intramolecular Having at least one double bond (-C = C-), such as ionone, methylionone, damascon, damasenone, dynascone, maltol, etc. Nitrogen-containing or sulfur-containing organic compounds, eg, indole, skatole, citronellyl nitrile,
Of course, other perfume compounds such as geranyl nitrile can be used in combination.

<Component (b)> The anionic surfactant used in the present invention is represented by the formula (I). R-OSO ₃ Na (I) wherein R represents a linear or branched alkyl or alkenyl group derived from a primary or secondary alcohol having 6 to 20 carbon atoms. The anionic surfactant represented by the above formula (I) has 6 carbon atoms.
~ 20 primary or secondary alcohols are sulfated in a known manner and then neutralized with aqueous NaOH to give a mixture with water. In the present invention, the water content of the mixture of the anionic surfactant and water obtained by this method is 10% by weight.
It is desirable that: In the present invention, it is desirable to use, as a raw material, powders, pellets, and needles obtained by drying a mixture of water and an anionic surfactant by spray drying, thin film drying under reduced pressure, or the like.

In the present invention, the most preferred anionic surfactant is obtained by sulfating a primary alcohol having an alkyl or alkenyl group having 6 to 18 carbon atoms and having an iodine value of 5 or less, followed by neutralization. . Examples of such anionic surfactants include decyl sulfate sodium salt, lauryl sulfate sodium salt, myristyl sulfate sodium salt, cetyl sulfate sodium salt, stearyl sulfate sodium salt or mixtures thereof.

The reaction rate during sulfation is usually 100%.
Thus, unreacted alcohol is mixed, but unreacted alcohol (about 10% by weight with respect to the anionic surfactant) in a ratio obtained by a general industrial production method may be mixed.

<Component (c)> The water-insoluble solid particles having water of crystallization used in the present invention have an average particle size of 20 μm or less, and preferably 0.1 to 10 μm. Average particle size is 20μm
If it exceeds, it may be recognized as undissolved when actually washed. The water-insoluble solid particles, the following equation _{Na 2 O · Al 2 O 3} · nSiO 2 · wH 2 O ( wherein, n represents 1.3 to 3.0,
w is an arbitrary positive number) and is preferably a crystalline aluminosilicate represented by the following formula and generally called a 4A-type zeolite.

<Component (d)> Examples of the water-soluble polymer used in the present invention include polyacrylic acid, polyethylene glycol, acrylic acid-maleic acid copolymer, starch, cellulose, polyvinylpyrrolidone and mixtures thereof. Each polymer has an average molecular weight of 3000 to 100,000
belongs to. The most preferred water-soluble polymers in the present invention are polyacrylic acid, polyethylene glycol, acrylic acid-maleic acid copolymer and polyvinylpyrrolidone.

[0016]

BEST MODE FOR CARRYING OUT THE INVENTION The amount of the fragrance component (a) of the present invention is 1 to 12% by weight in the composition, and a sufficient scent can be imparted to the fragrance particle composition in this range. The fluidity of the particle composition is improved, and the handling property is improved.

The compounding amount of the anionic surfactant (b) of the present invention is 40 to 94% by weight, preferably 60 to 94% by weight in the composition, and a stable perfume particle composition can be obtained in this range. it can.

Water-insoluble solid particles having water of crystallization according to the present invention
The compounding amount of (c) is 3 to 30% by weight in the composition. In this range, the flavor component can be held effectively, the fluidity of the flavor particle composition is improved, and the handling property is improved. In addition, when the amount is within this range, the solubility of the fragrance particle composition at the time of washing becomes good, and a desirable fragrance intensity can be obtained.

The compounding amount of the water-soluble polymer (d) of the present invention is
The content is 1 to 10% by weight in the composition, and in this range, the strength of the perfume particle composition can be maintained, undesirable micronization of the composition can be prevented, and the stability of the odor after storage becomes good.

The weight ratio of the anionic surfactant (b) of the present invention to the water-soluble polymer (d) is (b) :( d) = 5: 1 to 50: 1.
However, in this range, the strength of the perfume particle composition can be maintained and the fluidity can be improved.

The amount of water (e) of the present invention is 0.1% in the composition.
~ 10% by weight. When the amount of water is within this range, the odor is less dispersed due to storage, and the odor quality can be prevented from changing.

The perfume particle composition of the present invention may contain known dyes, pigments, fluorescent dyes, and inorganic salts such as sodium sulfate, sodium sulfite, soda ash, sodium tripolyphosphate, and sodium silicate. The content of the alkali metal carbonate and the alkali metal silicate is preferably 5% by weight or less in the perfume particles. The combination of the alkali metal carbonate and the alkali metal silicate sometimes causes deterioration of the odor.

In addition, the following known dyes and pigments are added to the perfume particle composition of the present invention for aesthetics, especially when the perfume particle composition of the present invention is dry-mixed with the granular detergent composition. It is desirable. <Dye> CIAcid Red 52 (CI 45110);
No. CIAcid Blue 9 (CI 42090); blue as an example No. 1 CIAcid Yellow 3 (CI 47005); yellow as an example
No. 3 <Pigment> CIPigment Green 7 (CI 74260); Lion as an example
ol Green FB CIPigment Blue 15 (CI 74160); Cyan as an example
ine Blue BR.

The particle diameter of the fragrance particle composition of the present invention is 100
~ 3000 μm is desirable, and more preferably 300-1500 μm
It is. When the particle size is smaller than this range, the fragrance is dissipated due to the large surface area with respect to the volume. When the particle size is larger than this range, the solubility of the particles is poor and the fragrance is not released quickly.

The fragrance particle composition of the present invention is dry-mixed with a powdery or granular cleaning composition. In this case, the cleaning composition has a conventionally known cleaning composition. And a detergent composition in which a fragrance component is blended. Further, the fragrance particle composition of the present invention is 0.1 to 5 in the final detergent composition.
It is blended in an amount of about 0% by weight. The granular detergent composition preferably has a bulk density, and is prepared so that the final bulk density after blending the fragrance particle composition of the present invention is 0.6 to 1.2 g / cm ³ .

[0026]

According to the present invention, the fragrance of the particulate detergent composition, the fragrance during washing, and the residual scent of clothes after washing are optimized by dry-mixing the fragrance particle composition of the present invention with the particulate detergent composition. Can be. Moreover, the granular detergent composition containing the perfume particle composition of the present invention has good fragrance stability even after storage.

[0027]

The present invention will be further described with reference to the following examples, but the present invention is not limited to these examples.

Examples (I) to (II), Comparative Examples (I) to (II) (1) Perfume particle composition A perfume particle composition was prepared by using the following perfume component (i) and various components shown in Table 2. Prepared. <Fragrance component (i)> wt% limonene 18.0 citronellyl nitrile 0.5 nonyl aldehyde 0.2 methyl nonyl acetaldehyde 0.1 dynascon 0.1 rigstral 0.1 hexyl acetate 2.0 ot-B. C. H. A. 2.0 Phenylethyl alcohol 4.0 Hexylcinnamic aldehyde 10.0 Lillal 10.0 Lilyal 10.0 Benzyl acetate 10.0 Benzyl salicylate 15.0 Indole 5.0 Coumarin 1.0 Ethylvanillin 5.0 Methylionone 2.0 Heliotropin 5.0 II 10 Total 100.0.

A production example of the perfume particle composition is shown below by taking Example (I) as an example. Tokuju R type ribbon mixer R-1300 type (total capacity 2000 liters, charging capacity 1300 liters, hereinafter referred to as mixer), 375 kg lauryl sulfate sodium salt (Emal 10P manufactured by Kao Corporation) and 75 kg 4A type zeolite After mixing, the mixer was rotated at a rotation speed of 20 rpm for 30 minutes. Then, 25 kg of the perfume ingredient (i) was dropped into the mixer and rotated for 15 minutes, and 10 kg of polyethylene glycol (average molecular weight 6000) and 15 kg of water were mixed. What was melted at 0 ° C was dropped into a mixer and rotated for another 15 minutes. The powder obtained in this manner is applied to an extruder (pre-type extruder, screen diameter: φ1.0 μm), extruded and granulated, and a granulator (manufactured by Fuji Paudal, FL-200 type, screen diameter: side φ3. 0 m
m, bottom 4.0 mm), and then sieved to obtain a sample on the sieve. Example (II), Comparative example
The compositions (I) and (II) were similarly prepared. However, "Other components" were added to the mixer at the same time as component (b).

(2) Powder Synthetic Detergent A In order to evaluate the product of the present invention in Table 2, a powder detergent composition (powder synthetic detergent A) prepared by the following method was prepared. Table 1 shows the composition of the powdery synthetic detergent A. 4A zeolite 1.0
kg, LAS 4.0 kg, AE 0.3 kg, AA-MA copolymer (acrylic acid-maleic acid copolymer) 0.5 kg, carboxymethyl cellulose 0.15 kg, FA 0.1 kg, JIS No.2 sodium silicate 1.
A water slurry having a solid content of 60% was obtained from 0 kg, 0.5 kg of soda ash and 0.05 kg of fluorescent dye, and the particles obtained by spray-drying the slurry were put into a Loedige mixer (manufactured by Matsusaka Giken Co., Ltd.). 1.0 kg of zeolite, 0.5 kg of soda ash, 0.1 kg of enzyme, and sodium sulfate used for balance are added, and 0.2 kg of AE heated to 70 ° C is gradually dropped into a place where these are mixed, and granulation is performed. Was. Further, 0.25 kg of 4A type zeolite was added and granulated. Except for those which did not pass through a 1410 μm sieve, a high-density powdered detergent composition was obtained (average particle size: 450 μm, bulk density: 75 μm).
0 g / liter).

[0031]

[Table 1]

* 1 LAS: straight-chain alkyl (C ₁₂ ) sodium salt of benzenesulfonic acid * 2 FA: tallow fatty acid sodium salt * 3 AE: polyoxyethylene primary dodecyl ether (HLB = 13.1) * 4 AA-MA copolymer: Sokaran CP 5 (manufactured by BASF) * 5 Fluorescent dye: 4,4'-bis- (2-sulfostyryl) biphenyl salt * 6 Enzyme: API-21H (manufactured by Showa Denko KK), Lipolase 100T (Novo Nordisk) A mixture of Cellzyme 0.1T (Novo Nordisk) and Termamyl 60T (Novo Nordisk) in a ratio of 2: 1: 1: 1. * 7 Carboxymethylcellulose: KMC-II manufactured by Shikoku Chemical Co., Ltd. * 8 Glauber's salt: Used so that the total amount would be 100% by weight.

(3) Perfume particle-containing powder detergent 5% by weight of the perfume particle composition obtained in the above (1) is mixed with the powdered synthetic detergent A obtained in the above (2) to obtain a perfume particle-containing powder detergent. Obtained.

(4) Performance Evaluation With respect to the perfume particle-containing powder detergent obtained above, the change in fragrance before and after storage was evaluated by a high-sensitivity panel. The change in fragrance is determined by using the powder detergent before storage or the powder detergent after storage at 40 ° C. for 30 days, and the strength and taste of the fragrance of the grains themselves, and the strength of the fragrance when the laundry treatment is performed under the following conditions. It was evaluated by. Table 2 shows the results. <Washing conditions> 1.5 kg of cloth and 30 liters of water are put into a 2-tub washing machine, and 25 g of powder detergent containing fragrance particles before or after storage is stored.
After the mixture was stirred for 15 minutes, it was rinsed twice and evaluated. On the other hand, as a control, a powder detergent was prepared by spraying a fragrance onto a powder detergent (containing no fragrance particles) so that the amount of the fragrance in each example was adjusted, and the powder detergent was mixed with the powder detergent before storage at 40 ° C for 30 minutes. Powder detergents after storage for days were prepared. Using this control product, a washing treatment was performed under the above conditions, and the result was used as a reference for a change in aroma. <Evaluation of aroma during washing> A: Intensity of washing water after 1 minute of stirring under the above conditions b: Intensity of washing water after 15 minutes of stirring under the above conditions C: 15 minutes of stirring under the above conditions The intensity of the scent of the dewatered cloth after rinsing The intensity of each scent in the washing process of (a) to (c) was evaluated in comparison with the control product according to the following criteria. 4: Very strong scent compared to control product 3: Strong scent compared to control product 2: Slightly stronger scent than control product 1: Same scent as control product <Evaluation of powder scent> 1: Slightly stronger scent than control product 0: Same scent compared to control product -1: Slightly weak scent compared to control product A: Smell better than control product B: Smell compared to control product Equal in preference C: Unsatisfactory scent compared to control

[0035]

[Table 2]

(Note) * 1 Zeolite: average particle size 4 μm * 2 Polyethylene glycol: average molecular weight 6000 * 3 Acrylic acid-maleic acid copolymer: Sokalan CP
5 (manufactured by BASF) * 4 Polyvinylpyrrolidone: average molecular weight 30,000 * 5 Dye A: Lionol Green FB [CIPigment Green
7, (CI74260)].

Examples (III) to (IV) and Comparative Examples (III) to (IV) Using the fragrance component (i) prepared in Example (I), a fragrance particle composition shown in Table 4 was prepared. It was prepared in the same manner as in I), and this was added to 5% by weight of a powdery synthetic detergent B prepared by the following method to prepare a powdery detergent containing fragrance particles. The same evaluation as in Example (I) was performed using this perfume particle-containing powder detergent. Table 4 shows the results.

<Powder Detergent B> To evaluate the product of the present invention shown in Table 4, a powder detergent composition (powder detergent B) prepared by the following method was prepared. Table 3 shows the composition of the powdery synthetic detergent B. 1.5 kg of sodium tripolyphosphate, 4.0 kg of LAS,
AE 0.3 kg, AA-MA copolymer (acrylic acid-maleic acid copolymer) 0.1 kg, carboxymethyl cellulose 0.05
kg, FA 0.1kg, JIS No.2 sodium silicate 1.0kg, soda ash
A water slurry of 50% solids was obtained from 0.2 kg and 0.05 kg of the fluorescent dye, and particles obtained by spray-drying the slurry were put into a Loedige mixer (manufactured by Matsusaka Giken Co., Ltd.), and 1.0 kg of 4A type zeolite was further added. 0.5 kg of soda ash, 0.1 kg of enzyme, and Glauber's salt used for balance were added, and 0.2 kg of AE heated to 70 ° C. was gradually dropped into a place where these were mixed to perform granulation. 4 more
0.25 kg of A-type zeolite was added and granulated to obtain a high-density powdered detergent composition (average particle size: 400 μm, bulk density: 700 g / liter) except for those not passing through a 1410 μm sieve. These components were the same as those used in Example (I).

[0039]

[Table 3]

[0040]

[Table 4]

(Note) * 1 Zeolite: average particle diameter 4 μm * 2 Acrylic acid-maleic acid copolymer: Sokaran CP
5 (manufactured by BASF) * 3 Polyvinylpyrrolidone: average molecular weight 30,000 * 4 Polyacrylic acid: average molecular weight 13,000 * 5 Dye B: Red No. 106 [C. I. Acid Red
52 (CI. 45110)].

Continuing on the front page (72) Inventor Tamaki Seki 1334 Minato, Wakayama-shi, Wakayama Pref.

Claims (5)

[Claims] 1. A fragrance particle composition used by being dry-mixed with a granular detergent composition, comprising the following components (a), (b), (c),
A fragrance particle composition comprising (d) and (e). (a) Perfume ingredient 1 to 12% by weight (b) Anionic surfactant represented by the following formula (I) 40 to 94% by weight R-OSO ₃ Na (I) [where R is 6 to 20 carbon atoms It represents a linear or branched alkyl or alkenyl group derived from a primary or secondary alcohol. (C) Water-insoluble solid particles having water of crystallization and having an average particle size of 20 μm or less 3 to 30% by weight (d) Water-soluble polymer 1 to 10% by weight [However, the weights of component (b) and component (d) The ratio is (b) :( d) = 5: 1 to 50: 1. (E) 0.1 to 10% by weight of water 2. The fragrance particle composition according to claim 1, wherein the fragrance component of the component (a) contains one or more compounds selected from the following compounds. Hydrocarbon containing at least one double bond (-C = C-) in the molecule Aldehyde Ester Lactone Phenol derivative Alcohol with at least one double bond (-C = C-) in the molecule Double in the molecule Ether having at least one bond (-C = C-) Ketone having at least one double bond (-C = C-) in the molecule Nitrogen-containing or sulfur-containing organic compound 3. A composition containing at least 60% by weight of component (b),
The fragrance particle composition according to claim 1 or 2, wherein R in (I) is an alkyl or alkenyl group derived from a primary alcohol having 6 to 18 carbon atoms and an iodine value of 5 or less. 4. The fragrance particle composition according to claim 1, wherein the component (c) is a 4A zeolite. 5. The component (d) is a water-soluble polymer having an average molecular weight of 3000 to 100,000 selected from polyacrylic acid, polyethylene glycol, acrylic acid-maleic acid copolymer, starch, cellulose and polyvinylpyrrolidone. Item 5. The fragrance particle composition according to any one of Items 1 to 4.