JPH07286195A - Method for producing granular nonionic detergent composition - Google Patents

Abstract

PURPOSE:To obtain a granular nonionic detergent composition capable of improving the characteristic adhesion to production installations on the compounding of a cationic surfactant, the bleeding of a nonionic surfactant, the insufficient flowability of a granular nonionic detergent composition, and the generation of caking, and further capable of imparting antistaticity and softness to fibers by adding a cationic surfactant as an essential component. CONSTITUTION:The method for producing the objective granular nonionic detergent composition comprises homogeneously mixing and kneading (a) 10-85wt.% of a nonionic surfactant, (b) 0.2-5wt.% of porous inorganic powder containing >=50wt.% of SiO2, (c) a soap, and (d) a cationic surfactant, adding an inorganic powder material as a grinding auxiliary agent to the formed solid detergent, and subsequently grinding the solid detergent. The total amount of the components (c) and (cld is 0.1-30wt.%, and the weight ratio of the components (c)/(d) is 0.5-50.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for producing a granular detergent composition containing a nonionic surfactant as a main component, which is excellent in particle strength and generates very little dust. The present invention also has no adhesion to a manufacturing apparatus, is excellent in fluidity and anti-caking property, and further has an antistatic ability and a softening effect on fibers,
The present invention relates to a method for producing a granular detergent composition containing a nonionic surfactant as a main component.

[0002]

2. Description of the Related Art Nonionic surfactants have unique properties such as hard water resistance, miscibility with other components, and low foaming property. However, on the other hand, nonionic surfactants have not been widely discussed in conventional detergents because they require a powdering treatment because they are liquids and have low foaming properties. It is beginning to be reassessed by the recent changes in the consumption environment such as the increase in density and the spread of fully automatic washing machines.

[0003] Usually, a granular detergent containing a nonionic surfactant is prepared by adding a nonionic surfactant to a detergent slurry and spray-drying it, or by stirring a nonionic surfactant and other detergent components. It is manufactured by the method of charging and granulating. However, when a detergent containing a nonionic surfactant is manufactured by a spray drying method, there is a problem that a part of the nonionic surfactant is decomposed or scattered during the drying, and it is necessary to take measures against exhaust gas pollution. In addition, particles produced by the spray drying method have a weak particle strength because they form a hollow structure, particle destruction occurs during production or storage, and there is a problem that dust generation is aggravated by the fact that fine powder is generated. there were.

On the other hand, since the nonionic surfactant is in the form of liquid or paste, when a large amount of nonionic surfactant is blended to produce a granular detergent, the granular detergent adheres to the production apparatus at the time of production, and the detergent particles are removed. However, there are problems such as exudation of nonionic surfactant, deterioration of fluidity of detergent particles, and deterioration of cake sig resistance.

Japanese Unexamined Patent Publication (Kokai) No. 4-339898 discloses a granular detergent containing a nonionic surfactant, which is granulated using a crystalline aluminosilicate, an amorphous oil absorbing carrier and sodium carbonate in a specific ratio. It has been reported that the above results prevent the exudation of the liquid nonionic surfactant and significantly improve the fluidity and the caking resistance of the granular detergent.

Further, in Japanese Patent Laid-Open No. 5-5100, silicon is contained as SiO _{2 in an amount} of 30% by weight or more and has an oil absorption capacity of 8%.
0 ml / 100 g or more, the pH of the dispersion is 9 or more, or the amount dissolved in a 2% NaOH aqueous solution is 0.5 g
By using the following oil-absorbing carrier to produce a granular detergent containing a nonionic surfactant, exudation of a liquid nonionic surfactant is prevented, and the fluidity and anti-caking properties of the granular detergent are It has been reported that sex can be improved.

Further, in Japanese Patent Application Laid-Open No. 2-229894, a high bulk density powdery granular nonionic detergent composition having improved caking resistance is produced by using heavy sodium carbonate and light sodium carbonate in a specific ratio. It has been reported to do.

However, in the granular nonionic detergent composition obtained by the above-mentioned three methods, since the nonionic surfactant itself has a small binder effect, the obtained detergent particles are brittle, and the detergent particles are not produced during production or storage. Since it is generated, dust generation, fluidity, and anti-caking property are deteriorated accordingly. Therefore, it is necessary to improve the particle strength.

Further, in Japanese Unexamined Patent Publication (Kokai) No. 5-125400, a blending component containing a porous oil-absorbing carrier and a nonionic surfactant is charged into a specific agitating mixer and granulated. It has been reported that a nonionic surfactant can be simply and energy-savingly produced by mixing a substance and a fine powder and coating the surface of the granulated substance.

However, the detergent particles produced by the stirring granulation method have a problem that the particle strength is weak and the particles are easily broken because the mixing degree of the blending components is coarse. On the other hand, as a method of using a nonionic surfactant and a cationic surfactant in combination to obtain the cleaning ability and the effect of imparting flexibility, there are the following report examples.

Japanese Laid-Open Patent Publication No. 54-39411: HLB
Is 5 to 17 and the number of carbon atoms of the alkyl group is 8 to 22 and the cationic surfactant not containing the hydrazinium group are used in a specific ratio to form a detergent composition, thereby providing flexibility. Excellent in removing dirt such as clay.

JP-A-62-156200: A detergent composition comprising a nonionic surfactant, a cationic surfactant, a water-soluble C ₂₁ dicarboxylic acid salt, a water-soluble salt and an enzyme in a specific ratio. Improves the ability to remove oil stains at low temperatures.

JP-A-62-215698: A non-soap surfactant, a builder, and a cationic surfactant are used in a specific ratio to form a detergent composition, which has good flexibility and antistatic ability. Excellent and prevent recontamination.

JP-A-59-176396: Detergent having good flexibility by dissolving anionic surfactant, nonionic surfactant, tertiary amine and cellulase in water at a specific ratio and spray-drying. A composition is obtained.

However, when the nonionic surfactant and the cationic surfactant are used in combination as described above, the tackiness increases, the adhesion to the apparatus during production increases, and the flow of the resulting granular detergent is increased. Resistance and caking resistance deteriorate. Further, the above method has a problem that the nonionic surfactant is thermally decomposed by heating during spray drying.

[0016]

DISCLOSURE OF THE INVENTION The present invention provides a granular detergent composition containing a nonionic surfactant as a main component, which has excellent particle strength and prevents dust generation. The present invention is
In addition, troubles such as adhesion of equipment during manufacturing due to the incorporation of cationic surfactants, and exudation of nonionic surfactants,
The present invention provides a granular detergent composition containing a nonionic surfactant as a main component, which has improved fluidity and anti-caking property.

[0017]

The first method for producing a granular nonionic detergent composition of the present invention (hereinafter referred to as method A) comprises (a) a nonionic surfactant: 10% by weight or more and 85% by weight or less.
(B) Porous inorganic powder containing 50 wt% or more of SiO ₂ content: 0.2 wt% or more and less than 5 wt% (c) Soap: 0.1 wt% or more and 20 wt% or less It is characterized in that a solid detergent is mixed to form a solid detergent, and then an inorganic powder is added as a grinding aid, and the solid detergent is crushed into powder particles or granular detergent particles.

The second method for producing a granular nonionic detergent composition of the present invention (hereinafter referred to as method B) is (a) nonionic surfactant: 10% by weight or more and 85% by weight
Less than (b) SiO ₂ content of 50% by weight or more porous inorganic powder: 0.2% by weight or more and less than 5% by weight

(C) Soap (d) Cationic surfactant The above amount, and the total amount of components (c) and (d) is 0.1% by weight or more and less than 30% by weight, and the weight ratio is (c). /
(D) = knead evenly in the range of 0.5 to 50
It is characterized in that a solid detergent is mixed to form a solid detergent, and then an inorganic powder is added as a grinding aid, and the solid detergent is crushed into powder particles or granular detergent particles.

[0020]

BEST MODE FOR CARRYING OUT THE INVENTION Examples of the nonionic surfactant as the component (a) used in the present invention include the following. (1) 6 to 22 carbon atoms, preferably 8 to 18 carbon atoms, and more preferably 10 to 14 carbon atoms in an aliphatic alcohol.
An average of 3 to 30 mol, preferably 7 to 20 mol of the alkylene oxide of is added to the polyoxyalkylene alkyl (or alkenyl) ether. Among these, polyoxyethylene alkyl (or alkenyl) ether and polyoxyethylene polyoxypropylene alkyl (or alkenyl) ether are preferable.

(2) Polyoxyethylene alkyl (or alkenyl) phenyl ether (3) General formula (I) of the following chemical formula 1 in which alkylene oxide is added between ester bonds of long-chain fatty acid alkyl ester
Fatty acid alkyl ester alkoxylate

[0022]

Embedded image R ₁ CO (OA) nOR ₂ ... (I) (R ₁ CO: 6 to 22 carbon atoms, preferably 10 to 18 fatty acid residue OA: _{2 to} 4 carbon atoms such as OCH ₂ CH ₂ ; Preferably 2
Addition unit of alkylene oxide of 3 n: shows the average addition mole number of alkylene oxide, 5
30, preferably a number of 7 to 20 R ₂ : a lower alkyl group having 1 to 3 carbon atoms)

(4) Polyoxyethylene sorbitan fatty acid ester (5) Polyoxyethylene sorbit fatty acid ester (6) Polyoxyethylene fatty acid ester (7) Polyoxyethylene hydrogenated castor oil (8) Glycerin fatty acid ester (9) Carbon number 6 A sugar ester nonionic surfactant comprising an ester of a fatty acid of -18 and a monosaccharide having 5 to 6 carbon atoms or a monoalkyl ether thereof. (10) A sugar alkyl ether-based nonionic surfactant represented by Chemical formula 2.

[0024]

Embedded image R ₁ O (CH ₂ CH ₂ O) n (Z) x (R ₁ : an alkyl group having 8 to 18 carbon atoms n: 0 to 12 Z: a sugar residue having 5 to 6 carbon atoms x: 1 2-10)

Among the above nonionic surfactants, polyoxyethylene alkyl (or alkenyl) ethers,
A fatty acid methyl ester ethoxylate obtained by adding ethylene oxide to a fatty acid methyl ester is particularly preferably used.

The nonionic surfactant as the component (a) is 10
A range of more than 85% by weight and preferably 10-6% by weight
It is mixed and kneaded and mixed in the range of 0% by weight. If this amount is less than 10% by weight, the excellent cleaning properties of the nonionic surfactant cannot be utilized, while if it is more than 85% by weight, the tackiness of the solid detergent obtained by kneading and mixing is significantly increased. However, adhesion to the crusher occurs, which makes manufacturing difficult.

In the present invention, even if a liquid or pasty nonionic surfactant at 40 ° C. is used, it is possible to prevent the nonionic surfactant from seeping out. It is advantageous to use a surfactant.

As the porous inorganic oxide powder containing (b) the SiO ₂ content of 50% by weight or more, amorphous silica (trade name: Sildex (Asahi Glass), Tokusil (Tokuyama Soda), Aerosil (Japan) Aerosil)), crystalline calcium silicate (trade name: Florite (Tokuyama Soda), crystalline magnesium silicate (trade name: Wollastonite (Hayashi Kasei)) and the like.

The porous inorganic oxide powder is blended in an amount of 0.2% by weight or more and less than 5% by weight, preferably 1 to 4% by weight and kneaded and granulated. If the blending amount is less than 0.2% by weight, the fluidity of the resulting detergent composition is significantly reduced, while
When it is 5% by weight or more, the particle size of the obtained detergent composition becomes small and the dusting property deteriorates.

The soap as the component (c) has 10 to 10 carbon atoms.
Water-soluble salts of 24 fatty acids are used. Specific examples thereof include animal fatty acid salts such as hardened beef tallow, uncured beef tallow, and lard; vegetable oil fatty acid salts such as coconut oil and palm oil; and synthetic fatty acid salts. Examples of the salt include alcar metal salts such as sodium salt and potassium salt, and alcaramine salts such as diethanolamine salt and triethanolamine salt.

In the method A, the soap as the component (c) is
0.1% by weight or more and less than 20% by weight, preferably 0.5 to
It is compounded and kneaded and granulated in an amount of 10% by weight. If this amount is less than 0.1% by weight, the particle strength of the nonionic detergent composition obtained will be weak, while if it is 20% by weight or more, the solid detergent obtained by kneading and mixing will be soft and sticky, making production difficult. Becomes

The blending amount of the component (c) soap in the method B is defined in relation to the component (d), and will be described later.
As the cationic surfactant as the component (d) used in the method B, one having a softening effect is used,
Specific examples thereof include tertiary amines or salts thereof, di-long-chain alkyl (or alkenyl) type quaternary ammonium salts represented by the general formula (I) of chemical formula 3 or the general formula (II) of chemical formula 4, A quaternary ammonium salt such as the tetra-long-chain alkyl (or alkenyl) type quaternary ammonium salt shown in the general formula (III) of 5 is used.

[0033]

[Chemical 3]

[0034]

[Chemical 4] (The abbreviations of the general formulas (I) and (II) represent the following: R ₁ , R ₂ : C _{10 to} C ₂₆ linear or branched alkyl group or alkenyl group R ₃ , R ₄ : C ₁ to C ₄ alkyl group, benzyl group, C ₂ ~
C ₄ hydroxyalkyl group or polyoxyalkylene group X: halogen, CH ₃ SO ₄ , C ₂ H ₅ SO ₄ or CH ₃
-Φ-SO ₃ (φ represents a benzene ring, and SO ₃ is bonded to the p-position with respect to CH ₃ ))

[0035]

[Chemical 5] (The abbreviations of the general formula (III) represent the following: R ₁ , R ₂ : C _{8 to} C ₂₆ linear or branched alkyl group or alkenyl group R ₃ , R ₄ : C _{6 to} C ₂₀ alkyl Group X: halogen, CH ₃ SO ₄ , C ₂ H ₅ SO ₄ or CH ₃
-Φ-SO ₃ (φ represents a benzene ring, and SO ₃ is bonded to the p-position with respect to CH ₃ ))

In the method B, the total amount of the components (c) and (d) [(c) + (d)] is 0.1% by weight or more and 30 or more.
Less than 0.5% by weight, preferably 0.5 to 20% by weight, and a weight ratio [(c) / (d)] of 0.1 to 50, preferably 0.2.
Used in the range of -40. If this total amount is less than 0.1% by weight, the antistatic ability and softness imparting to the fibers cannot be exhibited, while if it is more than 30% by weight, the tackiness of the solid detergent obtained by kneading and mixing will increase, and Adherence occurs. .

Further, when the blending weight ratio is less than 0.1, the tackiness peculiar to the component (d) appears and the adhesion to the apparatus is deteriorated, while when it exceeds 50, a solid detergent obtained by kneading and mixing is obtained. Slurry and difficult to crush.

In the granular nonionic detergent composition of the present invention,
The following ingredients that are usually blended in detergent raw materials can be blended, and these may be blended in the solid detergent at the time of kneading and mixing, and the detergent particles obtained by crushing the solid detergent can be powdered. You may mix. (1) Aluminosilicate (2) Inorganic alkali builder: sodium carbonate, potassium carbonate, sodium sulfite, sodium silicate, etc.

(3) Fluorescent agent: bis (triazinylamino) stilbenedisulfonic acid derivative, bis (sulfostyryl) biphenyl salt [Tinopearl CBS], etc. (4) Enzyme: lipase, protease, cellulase, amylase, etc. (5) Bleach: Percarbonate such as sodium percarbonate, perborate, etc. (6) Anionic surfactant: α-olefin sulfonate, linear alkylbenzene sulfonate

Of the above powder detergent raw materials, the use of aluminosilicates and sodium carbonate gives favorable results. As the aluminosilicate, synthetic zeolite having an average particle size of 0.1 to 10 μm is preferably used, and 5 to 5 of the detergent composition is used.
It is desirable to blend in an amount of 0% by weight, preferably 20 to 40% by weight.

As sodium carbonate, heavy sodium carbonate having a high bulk density (trade name: granular ash (Asahi Glass)), light sodium carbonate having a low bulk density (trade name: light ash (Asahi Glass))
Etc., and preferably anhydrous sodium carbonate. Sodium carbonate is incorporated at the time of kneading and mixing so that it is contained in the detergent composition in an amount of less than 75% by weight. Further, sodium carbonate is preferably added in an amount of 5% by weight or more, and preferably 10 to 50% by weight.

In the process for producing the detergent composition of the present invention, for example, each of the above components is introduced into a kneader such as a continuous kneader and kneaded and mixed uniformly under a strong shearing force. Use kneaded product (solid detergent). Industrially, a continuous kneader is preferable, and in particular, in the subsequent crushing step, in order to reduce the load on the crusher, it is preferable to pelletize and supply the kneaded product. A kneader having both functions of chemical conversion is preferable, and examples thereof include KRC kneader manufactured by Kurimoto Iron Works Co., Ltd.

An ordinary extruder is insufficient in terms of uniform mixing although pressure is applied, and an agitation-granulator is capable of uniformization but is insufficient in terms of compactness of the mixture due to low pressure. , Sufficient particle strength cannot be obtained.

In the kneading / mixing step, in addition to the nonionic surfactant, the porous inorganic oxide powder and the soap or the cationic surfactant (in the case of the method B), the above-mentioned optional components are further added. It can also be added.

Then, an inorganic fine powder is added to the obtained solid detergent as a grinding aid and crushed to obtain an average particle size of 300 to 15
Granular or granular detergent particles of 00 μm are obtained, and if necessary, other optional components are externally added by powder mixing or the like to obtain the granular nonionic detergent composition of the present invention. The crushing is preferably carried out by using a cutter mill type crusher having a screen classification function, and successively supplying from a crusher having a large screen hole diameter to a crusher having a small screen hole diameter to perform multi-stage crushing. Examples of the crusher having this function include Fitzmill and Pulverizer manufactured by Hosokawa Micron Co., Ltd. Also, powder mixing is a cylindrical mixer,
This can be performed by using a rotary mixer such as a conical mixer.

As the grinding aid, an inorganic powder having a JIS 200 mesh sieve passing amount of 50% or more is suitable, and as the material, for example, carbonates such as sodium carbonate and calcium carbonate, and amorphous silica. , Silicates such as calcium silicate and magnesium silicate, and aluminosilicates such as zeolite are used. The grinding aid is preferably used in an amount to be blended in the composition of the present invention in an amount of 0.5 to 15% by weight, more preferably 1 to 10% by weight.

[0047]

According to the method A of the method of the present invention, the nonionic surfactant, the porous inorganic oxide powder and the soap are uniformly kneaded and mixed at a specific ratio to obtain a solid detergent, which is then crushed. The resulting powdery or granular detergent particles can be used to easily and energy-savingly produce a nonionic detergent composition having excellent particle strength, and also to prevent human and environmental problems such as dusting of the nonionic detergent composition. Therefore, it is extremely suitable as an industrial manufacturing method. Furthermore, by containing the soap, the detergency and rinsability are further improved.

According to the method B of the present invention, the nonionic surfactant, the porous inorganic oxide powder, the soap and the cationic surfactant are uniformly kneaded and mixed in a specific ratio to obtain a solid. By crushing as a detergent and then crushing into powder granules or granular granules of detergent particles, adhesion to the manufacturing equipment peculiar to mixing cationic surfactant, exudation of nonionic surfactant, flow of granular nonionic detergent composition It is possible to improve the poor property and occurrence of caking, and to impart antistatic ability and flexibility to the fiber by using a cationic surfactant as an essential component.

[0049]

EXAMPLES In the examples, each sample was evaluated by the following test methods. [Particle Strength Evaluation Method] 20 polypropylene balls having a diameter of 10 mm and 100 g of the granular nonionic detergent composition were placed on a JIS 200 # sieve having a diameter of 30 cm, and a tabletop standard sieve shaker (manufactured by Tsutsui Rikagaku Kikai Kikai; VSS-50).
After shaking for 30 minutes using a mold, the weight ratio (%) of the 200 # sieve passed portion was determined.

[Evaluation Method of Dust Generation] One spoonful of a detergent sample was put into a 5.5 kg washing machine, and dust generation was visually evaluated according to the following criteria. ◯: No dust is generated ×: A lot of dust is recognized

[Evaluation Method of Dust Generation] Practical carton and detergent 1
After being charged with kg, a load of 5 kg / cm ² was applied in an atmosphere of 45 ° C. and left for 24 hours, and then the weight ratio of the residue on the 4 # sieve was determined.

[Fluidity] Similar to the anti-caking property, the detergent composition in the carton that had been left to stand was sufficiently stirred, and then the angle of repose was measured.

Examples 1 to 4 Each component of the composition of the detergent raw material shown in Table 1 except for the grinding aid, the enzyme and the fragrance was added to a continuous kneader (KRC2 manufactured by Kurimoto Iron Works).
Type) is kneaded and mixed, and the obtained kneaded product and zeolite as a grinding aid are put into Fitzmill (DKASO6 type manufactured by Hosokawa Micron) to form detergent particles, and the enzyme is powder-mixed with this to give a fragrance. Was sprayed to obtain a granular nonionic detergent composition having the properties shown in Table 2.

Comparative Examples 1 and 2 The detergent raw materials shown in Table 1 were used as Loedige mixer (Matsusaka Giken M2
(Type 0), and the resulting mixture was put into a Fitzmill to obtain a nonionic detergent composition having the properties shown in Table 2 in the same manner as in Examples below.

[0055]

[Table 1] Table 1: Composition of detergent composition Example Comparative example 1 2 3 4 12 Composition (wt%): (a) Nonionic surfactant AE nonion-1 25--25 25-AE nonion- 2- 40 − − − 40 FME Nonion −1 − − 50 − − − (b) Porous inorganic powder Amorphous silica 4 − − − 8 − Crystalline Ca Ca − 3 4 2 − − (c) Tallow soap 2 3 5 0.5 2 25 Arbitrary components Heavy sodium carbonate − − − − − 5 Light sodium carbonate 48.5 33.5 20.5 50.0 24.5 15.8 Type A zeolite 20 20 20 22 40 18.7 Grinding aid 5 5 5 5 − − Enzyme 0.5 0.5 0.5 0.5 0.5 0.5 0.5 Fragrance 0.3 0.3 0.3 0.3 0.3 0.3 Fluorescent agent 0.5 0.5 0.5 0.5 0.5 0.5 AE nonion-1: polyoxyethylene dodecyl ether (average number of moles of ethylene oxide added (EOp) =
8, melting point 15 ° C.) AE nonion 2: polyoxyethylene alkyl ether (C13 of alkyl group, EOp = 9, Dovanox 23H manufactured by Lion Kagaku Co., Ltd.) FME-1: C12 fatty acid methyl ester and ethylene oxide Condensate (EOp = 9) Amorphous silica: Tokseal N (manufactured by Tokuyama Soda Co., Ltd.) Crystalline silicate Ca: Fluorite R (Tokuyama Soda Co., Ltd., crystalline calcium silicate), SiO ₂ min 60% by weight Grinding Auxiliary: Zeolite

[0056]

[Table 2]Table 2: Evaluation results Example Comparative example  1 2 3 4 1 2 Evaluation results: Average particle size (μm) 500 530 580 530 270 − *¹  Bulk density (g / ml) 0.91 0.87 0.86 0.88 0.87 − Particle strength (%) 5 5 5 5 50 − Dust generation ○ ○ ○ ○ × − * 1) The kneaded product is too soft and cannot be crushed.

Examples 5 to 8 and Comparative Examples 3 to 4 Each of the components of the detergent raw material composition shown in Table 3 except for the grinding aid, the enzyme and the fragrance was added to a continuous kneader (KRC2 manufactured by Kurimoto Iron Works).
Type) is kneaded and mixed, and the obtained kneaded product and zeolite as a grinding aid are put into Fitzmill (DKASO6 type manufactured by Hosokawa Micron) to form detergent particles, and the enzyme is powder-mixed with this to give a fragrance. Was sprayed to obtain a granular nonionic detergent composition having the properties shown in Table 4.

[0058]

[Table 3]Table 3: Detergent composition composition Example Comparative example  5 6 7 8 3 4 Composition (wt%): (a) Nonionic surfactant AE nonion-1 25 − − 25 25 − AE nonion − 2 − 40 − − − 40FME Nonion-1 − − 50 − − − (b) Porous inorganic powder Amorphous silica 4 − − − − −Crystalline silicate Ca-34-2-2 (c) Tallow soap 1 5 1 0.5 − 25 (d) Cationic surfactant Cation 1 0.5 1 − − 0.5 0.4Cation 2 − − 3 3 − − Optional components Sodium carbonate 49.0 30.5 22.5 49.0 54.0 12.1 Type A zeolite 20 20 20 20 20 20 Grinding aid 5 5 5 5 − − Enzyme 0.5 0.5 0.5 0.5 0.5 0.5 Perfume 0.3 0.3 0.3 0.3 0.3 0.3Fluorescent agent 0.5 0.5 0.5 0.5 0.5 0.5 (c) + (d) (wt%) 1.5 6 4 3.5 0.5 25.4 (c) / (d) (wt / ratio) 2 5 0.33 0.17 −62.5 AE nonion-1: polyoxyethylene dodecyl ete
(The average number of moles of ethylene oxide added (EOp) =
8, melting point 15 ° C) AE nonion 2: polyoxyethylene alkyl ether
(C13 alkyl group, EOp = 9, Lion Chemistry
Dovanox 23H manufactured by Co., Ltd.) FME-1: C12 fatty acid methyl ester and ethyl ester
Condensate of lenoxide (EOp = 9) Amorphous silica: Tokseal N (manufactured by Tokuyama Soda Co., Ltd.) Crystalline silica: Fluorite R (Tokuyama Soda Co., Ltd.)
Crystalline calcium silicate), SiO₂Min 60 wt% Grinding aid: Zeolite Enzyme: Alcalase: Alkaline Protease: Alkali
Lipase = 1: 1: 1 mixture Fluorescent agent: Ciba Geigy's Chinopearl CBS: Sumitomo Chemical
Whitetex SKC = 5: 1 mixture produced by Cation 1: Cation 1: Distearyldimethylammonium Chlora
Id (Arcard 2HT manufactured by Lion Akzo Co., Ltd.) Cation 2: Di C₁₈Alkyl / alkenyl dimethyl ane
Monium chloride (Arcer made by Lion Akzo Co., Ltd.)
218P)

[0059]

[Table 4]Table 4: Evaluation results Example Comparative example  5 6 7 8 3 4 Evaluation results: Average particle size (μm) 500 530 580 530 550 510 510 Bulk density (g / ml) 0.91 0.87 0.87 0.88 0.90 0.98 Flowability (dust) 40 40 40 40 70 90 Caking resistance 20 10 15 20 60 80 Adhesion to equipment No No No No Yes Yes Yes

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Claims (2)

[Claims] 1. (a) Nonionic surfactant: 10% by weight
Or more and less than 85 wt% (b) porous inorganic powder containing 50 wt% or more of SiO ₂ content: 0.2 wt% or more and less than 5 wt% (c) soap: 0.1 wt% or more and 20 wt% or less The components a), (b) and (c) are uniformly kneaded and mixed in the above amounts to form a solid detergent, and then an inorganic powder is added as a grinding aid, and the solid detergent is crushed to form a granular material. Or a granular detergent particle, which is a method for producing a granular nonionic detergent composition. 2. (a) Nonionic surfactant: 10% by weight
Or more and less than 85 wt% (b) porous inorganic powder containing 50 wt% or more of SiO ₂ content: 0.2 wt% or more and less than 5 wt% (c) soap (d) cationic surfactant (a), The components (b), (c) and (d) are in the above amounts, and the total amount of the components (c) and (d) is 0.1% by weight or more and less than 30% by weight, and the weight ratio is (c) / (d. ) = 0.
Knead and mix uniformly to form a solid detergent in the range of 5 to 50, and then add inorganic powder as a grinding aid and crush the solid detergent to give powdery or granular detergent particles. A method for producing a granular nonionic detergent composition, comprising: