JPH0987694A - Granular nonionic detergent composition and its production - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a granular nonionic detergent composition showing excellent fluidity of detergent particles at an elevated temperature under a high pressure and good dissolving properties, by granulating a mixture of a nonionic surface active agent, a nonionic getting agent and an oil-absorbing carrier under stirring or by kneading and crushing them followed by granulation. SOLUTION: A nonionic surfactant (for example, polyoxyalkylene ether), a nonionic gelling agent(for example, 12-hydroxystearic acid) and an oil- absorbing carrier (for example, amorphous silica) are blended, and in addition, an inorganic cleansing builder (for example, sodium pyrophosphate), an organic cleansing builder (for example, polyacrylate salt), a fluorescent agent (for example, bis(sulfostyryl)biphenyl salt), an enzyme such as protease, a bleaching agent such as a percarbonate salt, an antistatic agent such as dialkyl type quaternary ammonium salt, a surface modifier such as fine-particle zeolite, are admixed and granulated under stirring, or they are kneaded, extruded and granulated by crushing to give the objective detergent composition having excellent fluidity and solubility at an elevated temperature and humidity.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a granular nonionic detergent composition containing a nonionic surfactant as a main component, which has good fluidity and excellent solubility of detergent particles under high temperature and high humidity, and a method for producing the same. .

[0002]

2. Description of the Related Art Nonionic surfactants generally have a low foaming property, their detergency is hardly affected by the hardness of water, and they are particularly excellent in dirt dispersibility and stain dispersibility at low temperatures. Furthermore, the nonionic surfactant is an excellent surfactant having good biodegradability, low environmental load, low toxicity and high safety. However, nonionic surfactants are generally liquid at room temperature, and there is concern that the nonionic surfactant exudes from a granular nonionic detergent product to a detergent container. The problem that the nonionic surfactant seeps into the detergent container deteriorates the appearance of the product, reduces the detergency due to the decrease in the nonionic surfactant at the contact portion of the container, and adversely affects the fluidity and the caking resistance of the detergent particles. was there. In JP-A-4-339898, 5-20% of an amorphous oil-absorbing carrier is blended to improve the prevention of exudation of the nonionic surfactant. However, the nonionic surfactant itself is liquid at room temperature. In particular, in the summer when the temperature exceeds 30 ° C., the nonionic surfactant exudes and deteriorates the fluidity of the detergent particles.

[0003]

Accordingly, the present invention provides a granular nonionic detergent composition containing a nonionic surfactant as a main component, which is excellent in fluidity and solubility of detergent particles under high temperature and high humidity, and its suitable composition. It is intended to provide a manufacturing method.

[0004]

Means for Solving the Problems The inventors of the present invention have diligently studied the above-mentioned problems, and as a result, gelled the nonionic surfactant and the nonionic surfactant, solidified in a granular detergent, and retained in the nonionic gelation. It was found that the fluidity under high temperature and high humidity can be improved by using the agent together. on the other hand,
It has been found that the solubility of the detergent particles is deteriorated when the nonionic gelling agent is used alone in combination with the nonionic surfactant, but it has been found that this problem can be solved by using the oil absorbing carrier in combination. In addition, the above combined effect, when a nonionic surfactant, a nonionic gelling agent, and a stirring granulation treatment of an oil-absorbing carrier, or when kneaded and extruded after crushing granulation to give a granular nonionic detergent composition, It was found to be remarkable. The present invention is based on this novel finding. That is, the present invention is directed to the following inventions.
1. A granular nonionic detergent composition comprising a nonionic surfactant, a nonionic gelling agent, and an oil absorbing carrier. 2. A method for producing a granular nonionic detergent composition, which comprises granulating a nonionic surfactant, a nonionic gelling agent and an oil-absorbing carrier with stirring, or crushing and granulating after kneading and extruding.

[0005]

BEST MODE FOR CARRYING OUT THE INVENTION In the present invention, various nonionic surfactants can be used as the nonionic surfactant. Preferred nonionic surfactants include:
For example, the following can be mentioned. (1) C3-C22, preferably C8-C18 aliphatic alcohol with C2-C4 alkylene oxide on average 3
Polyoxyalkylene alkyl (or alkenyl) ether added to ３０30 mol, preferably 7-20 mol. Among these, polyoxyethylene alkyl (or alkenyl) ether and polyoxyethylene polyoxypropylene alkyl (or alkenyl) ether are preferable. (2) polyoxyethylene alkyl (or alkenyl)
Phenyl ether. (3) A fatty acid alkyl ester alkoxylate represented by the following formula in which an alkylene oxide is added between ester bonds of a long-chain fatty acid alkyl ester. R ¹ CO (OA) _n OR ² (R ¹ CO represents a fatty acid residue having 6 to 22 carbon atoms, preferably 8 to 18 carbon atoms. OA represents 2 to 4 carbon atoms such as ethylene oxide and propylene oxide, preferably 2 to 3 represents an addition unit of alkylene oxide, n represents the average number of moles of alkylene oxide added, and generally 3 to 3
It is a number of 0, preferably 7 to 20. R ² has 1 carbon atom
Represents a lower alkyl group optionally having 3 to 3 substituents. (4) Polyoxyethylene sorbitan fatty acid ester. (5) Polyoxyethylene sorbite fatty acid ester. (6) Polyoxyethylene fatty acid esters. (7) Polyoxyethylene hydrogenated castor oil. (8) Glycerin fatty acid ester.

Among the above nonionic surfactants, polyoxyethylene alkyl (or alkenyl) ethers having a melting point of 40 ° C. or less and an HLB of 9 to 16 and fatty acid methyl ester ethoxylates obtained by adding ethylene oxide to fatty acid methyl ester are particularly preferable. Used for. Further, these nonionic surfactants may be used as a mixture. The nonionic surfactant is preferably contained in the granular nonionic detergent composition in an amount of 15 to 50% by weight, more preferably 15% by weight.
-40% by weight, particularly preferably 15-35% by weight. If this amount is less than 15% by weight, not only the concentration of the nonionic surfactant in the resulting detergent particles will be low but also the bulk density will be low. Therefore, unless the amount of the detergent used is increased, a good cleaning effect cannot be obtained. This is not preferable because it results in a conflict with compactness. It is also not preferable in terms of resource saving.
On the other hand, if it exceeds 50% by weight, it does not cause any particular problem in the case of batch type production, but in the case of continuous type production, the amount attached to the inside of the granulator increases, making stable production difficult. , Not preferable. The nonionic gelling agent used in the present invention has a function of gelling the nonionic surfactant and solidifying and holding the nonionic surfactant in the granular detergent. By using this nonionic gelling agent, the exudation prevention of the nonionic surfactant, the fluidity of the detergent particles and the caking resistance are greatly improved under high temperature and high humidity. Therefore, various nonionic gelling agents can be used as long as the nonionic gelling agent has such a function. As the nonionic gelling agent used in the present invention, those similar to those conventionally used as oil gelling agents can be used. Among such nonionic gelling agents, those having a maximum compressive stress of 30 g / cm ² or more at 40 ° C. when a specific nonionic surfactant is gelled by the nonionic gelling agent are preferably used. This maximum compressive stress is the weight ratio of a non-ionic gelling agent to be measured to an alcohol ethoxylate type nonionic surfactant (carbon chain length 12, average addition mole number of ethylene oxide of 9, melting point 20 ° C.) which is a general detergent. Mix at 70 ° C on 5/1,
After cooling to 20 ° C and then standing at 20 ° C for 3 hours,
After making a rectangular parallelepiped test piece of 5 cm in length × 5 cm in width × 1 cm in height, a cylindrical jig with a cross-sectional diameter of 1.5 cm is applied to the test piece.
The maximum compressive stress when pressed at a temperature of 20 ° C. and a compression rate of 20 mm / min is measured.

In the present invention, a nonionic gelling agent is added.
The maximum compressive stress under the above conditions is 30 g / cm²Is less than
Of Detergent Particles to be Flowed at High Temperature
There is. The more preferable maximum compressive stress is 50 to 2000.
g / cm² The particularly preferred maximum compressive stress is 100 to 150.
0g / cm² It is. Preferred nonions that can be used in the present invention
Examples of the gelling agent include 12-hydroxystearyl
Acid (Maximum compressive stress 520g / cm² ) (KF Trading
Hydroxystearin (trade name), dibenzylide
Sorbitol (maximum compressive stress 30g / cm² ) (New Japan Science
GELALL D (trade name) manufactured by Kabushiki Kaisha, Lithium stearate
(Maximum compressive stress 50g / cm² ) (L made by KF Trading
i-ST (trade name)), aluminum palmitate (most
Large compressive stress 50g / cm² ) (KF Trading Al-
PL (trade name), lithium 2-ethylhexanoate (up to
Large compressive stress 66g / cm ² ) (KF Trading Li-
2EH (trade name)), 12-hydroxystearic acid
Lumilium (maximum compressive stress 126g / cm² ) (KF tray
Al-OHST (trade name) manufactured by Ding, Lauroylg
Dibutyl glutamic acid (maximum compressive stress 200g / cm
² ) (Ajinomoto Coagulant GP-1 (trade name))
Uroylglutamic acid stearylamide (maximum compressive stress
53g / cm² ) (Made by Ajinomoto), dicaproyl lysine lauri
Luamide (maximum compressive stress 183g / cm² ) (Made by Ajinomoto),
Dicaproyl lysine lauramide (maximum compressive stress 91
g / cm² ) (Made by Ajinomoto), dicaproyl lysine laurylue
Stell (maximum compressive stress 45g / cm² ) (Made of Ajinomoto), lau
Roylphenylalanine lauramide (maximum compressive stress
37g / cm² ) (Made by Ajinomoto), polystyrene polybutadier
Block copolymer (molecular weight: 200,000, composition: polystyrene)
/ Butadiene = 40/60) (maximum compressive stress 60 g / cm)
² ) (KF Trading KF21 (trade name)),
Rear clearamide (molecular weight: 100,000)-isoparaffin
Mixture (maximum compressive stress 83g / cm² ) (Sora made by Fuso Corp.)
Gum SD401 (trade name)), polystyrene block
Block copolymer of polybutadiene block (molecular
Amount: 100,000, Composition: Styrene / butadiene = 30/7
0) (Maximum compressive stress 48g / cm² ) (KF Trading
Dextrin palmitic acid ester (maximum compression
80g / cm² ) (Chiba Flour Leo Pearl KL (product
Name)) and mixtures thereof.
By making these nonionic gelling agents a mixture,
A desired maximum compressive stress can be provided.

In the present invention, the nonionic gelling agent is
It is preferably contained in the granular nonionic detergent composition at 0.1 to 30% by weight, more preferably 0.5 to 20% by weight, particularly preferably 1 to 10% by weight. If this amount is less than 0.1% by weight, the fluidity of the resulting detergent particles under high temperature and high humidity tends to be significantly deteriorated, which is not preferable. On the other hand, if it exceeds 30% by weight, the solubility of the resulting detergent particles tends to deteriorate, which is not preferable. The oil-absorptive carrier used in the present invention is added to suppress the exudation of nonion and the solidification of detergent particles under high temperature and high humidity, while improving the solubility of the detergent when the detergent is used. The oil-absorbing carrier is a porous fine powder sufficient to adsorb and retain the nonionic surfactant,
The nonionic surfactant physically adsorbs, but does not swell. As a preferred oil-absorbing carrier, an oil-absorbing amount represented by a JIS-K6220 test method of 8 is preferred.
0 ml / 100 g or more, preferably 150 to 600 ml / 100 g, and has a bulk density of less than 0.1 g / cc, preferably
Substances with a 0.001 to 0.08 g / cc are preferably used.
Examples of such an oil-absorbing carrier include amorphous silicic acid (oil absorption: 250 ml / 100 g, bulk density: 0.06 g / cc) (Toxor made by Tokso, Aerosil made by Nippon Aerosil, Nipseal made by Nippon silica), amorphous Calcium silicate (oil absorption: 450 ml / 100 g, bulk density: 0.03 g / cc) (Flox made by Toxor, Thixolex made by Kofuran Chemical), amorphous aluminosilicate (oil absorption: 150 ml / 100)
g, bulk density: 0.08 g / cc), magnesium silicate (oil absorption: 180 ml / 100 g, bulk density: 0.08 g / cc), magnesium carbonate (oil absorption: 150 ml / 100 g, bulk density: 0.08 g / cc)
cc), calcium carbonate (oil absorption: 110 ml / 100 g, bulk density: 0.09 g / cc), spinel (oil absorption: 600 ml / 100)
g, bulk density: 0.008 g / cc), cordierite (oil absorption: 600 ml / 100 g, bulk density: 0.008 g / cc), mullite (oil absorption: 560 ml / 100 g, bulk density: 0.009 g / c)
c), starch degradation product (oil absorption: 200 ml / 100 g, bulk density:
0.06 g / cc) (pine flow manufactured by Matsutani Chemical Co., Ltd.) and the like. Moreover, these oil-absorbing carriers may be used as a mixture.

The oil-absorbent carrier is preferably contained in the granular nonionic detergent composition in an amount of 0.1 to 20% by weight, more preferably 0.5.
˜15% by weight, particularly preferably 1 to 10% by weight. When this amount is less than 0.1% by weight, the solidification property of the obtained detergent particles under high temperature and high humidity is significantly deteriorated, which is not preferable. On the other hand, when it exceeds 30% by weight, the amount of fine powder of the obtained detergent particles increases and dust is apt to occur. It should be noted that the oil-absorbent carrier alone has some effect on exudation of the nonionic surfactant and prevention of solidification of the detergent particles, but those effects, particularly solidification, are further improved by using it together with the nonionic gelling agent. be able to.

In the granular nonionic detergent composition of the present invention,
The following components that are usually blended with detergent raw materials can be blended. Various methods can be applied to the method of blending these components.For example, these components may be blended in the granulation process, or may be mixed with the detergent particles obtained by the granulation process. . (1) As an inorganic cleaning builder, sodium carbonate, potassium carbonate, sodium silicate, potassium silicate, crystalline zeolite, sodium tripolyphosphate, sodium pyrophosphate, etc. (2) As organic washing builders, citrate, succinate, polyacrylate, polyacrylic acid-maleic acid copolymer, EDTA and the like. (3) Bis (triazinylamino) stilbene disulfonic acid derivatives, bis (sulfostyryl) biphenyl salts [Tinopearl CBS], etc. as fluorescent agents. (4) As the enzyme, lipase, protease, cellulase, amylase and the like. (5) As a bleaching agent, percarbonate, perborate and the like. (6) Cationic surfactants such as dialkyl-type quaternary ammonium salts as antistatic agents. (7) As surface modifiers, fine calcium carbonate, fine zeolite, polyethylene glycol and the like. (8) As the anionic surfactant, α-sulfo fatty acid methyl ester salt, linear alkylbenzene sulfonate,
α-olefin sulfonate, alkyl sulfate, fatty acid soap and the like. (9) Cellulose derivatives such as carboxymethyl cellulose as a redeposition preventing agent. (10) As a bulking agent, sodium sulfate, potassium sulfate, sodium chloride and the like. (11) As a reducing agent, sodium sulfite, potassium sulfite and the like.

Next, a method for producing the granular nonionic detergent composition of the present invention will be described. The nonionic surfactant, the nonionic gelling agent, and the oil-absorbing carrier, which are the essential components of the present invention, are added during stirring granulation and uniformly granulated. At this time, other detergent components such as zeolite, sodium carbonate, and a fluorescent agent may be added. Various modifications are conceivable in producing the granular nonionic detergent composition of the present invention. For example, prior to the stirring granulation, the nonionic gelling agent was dissolved in a solvent to prepare a nonionic gelling agent solution in a solution, and the stirring granulator was blended with a nonionic surfactant and if necessary. There is a method of adding together with various components and stirring and granulating. By using this method, gelation and homogenization of the nonionic surfactant can be surely achieved, and the nonionic surfactant can be more effectively exuded during storage. As a solvent used for dissolving the nonionic gelling agent, various solvents can be used depending on the type of the nonionic gelling agent. For example, as such a solvent, ethanol, dimethylformamide, dimethylsulfoxide, N-methyl-2
-A solvent such as pyrrolidone can be used. The nonionic gelling agent used in the present invention is the same as a so-called oil gelling agent originally used for gelling oil. Therefore, various solvents used for forming a solution in such an application can be similarly used. The concentration of the nonionic gelling agent in the nonionic gelling agent solution is
It is 1 to 20% by weight, preferably 5 to 15% by weight.

The stirring granulator used in the stirring granulation operation has a stirring blade inside the granulator such as a high speed mixer, a Shugi mixer, and a Loedige mixer, and the stirring blade and the inner wall surface of the granulator. An internal stirring type granulator having a clearance of 30 mm or less between and is preferably used for obtaining high bulk density detergent particles. The temperature of the stirring granulation is generally 20 to 60 ° C, preferably 30 to 50 ° C, more preferably 35 to 50 ° C. If the temperature is lower than 20 ° C., granulation hardly proceeds, which is not preferable. On the other hand, the temperature is 60
On the contrary, when the temperature is higher than ℃, the adhesion in the granulator increases,
The load is likely to be excessive, which is not preferable. The processing time in the stirring granulation processing is usually 1 to 10 minutes, preferably 2 to 8 minutes. On the other hand, the granular nonionic detergent composition of the present invention, as in the case of the above-mentioned stirring granulation, a kneading extruder,
Preferably, it is introduced into a closed type compaction treatment device, more preferably a horizontal continuous kneader, and mixed by applying shearing force in the kneader to form a granulated product (solid detergent), and then crushed granulation The granular nonionic detergent composition of the present invention can be manufactured by crushing and granulating with a machine and performing a consolidation treatment. In this case, a single-screw or twin-screw extruder may be used in addition to the kneader. Specific examples of the kneading extruder used in the present invention include a KRC kneader manufactured by Kurimoto Ironworks Co., Ltd. A cutter mill or the like can be used as the crushing granulator. As the crushing granulator, for example, Fitzmill (DKASO6) manufactured by Hosokawa Micron Corporation or the like can be used. The temperature of the kneading extruder is generally 30 to 60C, preferably 35 to 55C, more preferably 40 to 50C. If the temperature is lower than 30 ° C., the load on the kneading extruder tends to be excessive, which is not preferable. On the other hand, if the temperature is higher than 60 ° C., on the contrary, the kneaded material tends to adhere to the pulverizer, which is not preferable. Processing time is usually 0.2-
It is 2 minutes, preferably 0.5 to 1 minute. The crushing and granulation treatment is generally performed at 5 to 30C, preferably 10 to 25C, and more preferably 10 to 20C. If the temperature is lower than 5 ° C., dew condensation easily occurs, which is not preferable. On the other hand, when the temperature is higher than 30 ° C., on the contrary, the adhesion to the crusher easily occurs, which is not preferable. Processing time is usually
It is 1 to 30 seconds, preferably 3 to 30 seconds.

By such stirring granulation or kneading extrusion, the bulk density in the present invention is 0.3 to 1.2 g / ml, preferably
It is preferred to obtain a compact of 0.5 to 1 g / ml. Furthermore,
A coating treatment may be added to the thus produced detergent particles to carry out a coating treatment. This can improve the flow properties. As a coating agent, an inorganic powder having a JIS 200 mesh sieve passing amount of 50% or more is suitable, and examples of the material include carbonates such as sodium carbonate and calcium carbonate, amorphous silica, calcium silicate, and silicic acid. A silicate such as magnesium and an aluminosilicate such as zeolite can be used. The coating agent is generally contained in the granular nonionic detergent composition of the present invention in an amount of 0.5 to 15% by weight, preferably 1%.
Used in an amount of -10% by weight. Further, the detergent particles thus produced may be post-added with enzymes, flavors and the like. The obtained granular nonionic detergent composition of the present invention generally has an average particle size of 300 to 3000 μm, preferably 350 to 2000 μm, particularly preferably 400 to 100 μm.
Obtained at 0 μm.

[0014]

The present invention will be described below in more detail with reference to examples and comparative examples. In addition, in the example and the comparative example, each sample was evaluated by the following test methods. [Exudation test] Coated cardboard (basis weight: 3
50 g / m ² ), wax sand paper (basis weight: 30 g / m ² ), kraft pulp paper (70 g / m ² ), three layers of paper, length 15 cm x width 9.3 cm x height 18 A 0.5 cm box was made. Put 1.2 kg of sample in this box, store it in a constant temperature and humidity room at 50 ° C and 85% RH for 30 days, then remove all the detergents.
The degree of seepage of the contact portion with the detergent inside the box was visually evaluated according to the following criteria. ⊚: No bleeding is observed ◯: Slight bleeding is observed Δ: Slight bleeding is observed ×: Many bleeding is observed [Solidification test] Coated cardboard from the outside (basis weight: 350
g / m ² ), wax sand paper (basis weight: 30 g / m ² ), kraft pulp paper (70 g / m ² ), three layers of paper, length 15 cm x width 9.3 cm x height 18 A 0.5 cm box was made. Put 1.2 kg of sample in this box and store it in a thermo-hygrostat at 50 ° C and 85% RH for 30 days. Carefully transfer the detergent onto a JIS standard 4 mesh sieve, shake the sieve gently, and then sift it. The above weight and the total weight were obtained, and the solidification property was calculated from the following formula 1. Formula 1: Solidification (%) = {weight on sieve (g) / total weight (g)} × 100 [solubility test] Put tap water at 5 ° C. into a 500 ml beaker, and add 5 g of the detergent composition, Stir for 5 minutes. next,
Remove the undissolved detergent particles onto a nylon cloth and
After drying at 0 ° C. for 2 hours, the dissolution residue represented by the following formula 2 was calculated and evaluated according to the following criteria.

Formula 2: Dissolution residue (%) = {(dissolution residue 1
05 ° C. 2 hours dried product g) / 5 g} × 100 ◎: 0% ≦ dissolved residue <1% ○: 1% ≦ dissolved residue <5% Δ: 5% ≦ dissolved residue <10% ×: 10% ≦ dissolved residue % [Fluidity test] 45 ° C. based on JIS Z2502
The angle of repose was measured by the drainage method. [Bulk density] The bulk density was measured according to JIS Z2504. [Dust] A spoonful (about 20 g) of detergent was dropped from a height of 70 cm into the washing machine, and the state of dust generation was visually evaluated according to the following criteria. No: No powder at all Little: Mist-like powder was generated near the water surface Many: Powder was generated over the washing machine [Adhesion test on granulator] After discharging granulated detergent particles The granulator was opened, and the amount of the detergent attached to the inner side wall and the stirring blade was visually evaluated according to the following criteria. None: No adhesion at all Slight: Thin and slightly adhered Large: Large amount adhered

Examples 1 to 5 Nonionic gelling agents and fluorescent agents were mixed and dissolved in the amounts of nonionic surfactants shown in Table 1 at 80 ° C. to prepare nonionic solutions. Next, an oil-absorbing carrier, sodium carbonate, sodium sulfite, and A-type zeolite were charged into a Ledige mixer (M-20 type, manufactured by Matsubo Co., Ltd.), and the spindle (2
These components were uniformly mixed at 40 ° C. for 3 minutes while stirring with a chopper (6000 rpm). Next, the above nonionic solution is applied to a pressure nozzle (Ikeuchi MK120,
A spray pressure of 5 kg / cm ² ) is used to add an average particle size of 500
Granulation treatment was performed until the particle size became μm. Finally, type A zeolite was added in a rolling drum to coat the particles obtained by stirring granulation, and other optional components such as enzymes and fragrances were further added to the granular nonionic detergent composition having the properties shown in Table 1. The product (average particle size: 500 μm) was obtained.

Example 6 As a granulating apparatus, a kneader (KRC-2 manufactured by Kurimoto Riko Co., Ltd.)
Each component was added to the mold in the same manner as in Example 1, kneaded at 40 ° C. for 1 minute, and the solid detergent was extruded, and then the solid detergent was crushed and granulated (fitting mill (DK Hosokawa Micron Co., Ltd.) (DK
ASO6))) so that the average particle size becomes 500 μm 15
Crushing and granulation at 5 ° C. for 5 seconds gave a granular nonionic detergent composition.

Comparative Examples 1-2 A granular nonionic detergent composition was prepared in the same manner as in Example 1 except that no nonionic surfactant or oil absorbing carrier was used. [Raw materials] The nonionic surfactant, nonionic gelling agent, and oil-absorbing carrier used in Examples and Comparative Examples are
It is as follows. Nonionic Surfactant (1) Nonionic Surfactant-1 C ₁₂ H ₂₅ O (CH ₂ CH ₂ O) ₇ H (Nippon Science Co., Ltd.)
Ltd. Konoru polyoxyethylene alkyl ether obtained by averaging 7 moles addition of ethylene oxide to 20P) (2) nonionic surfactant _{-2 C 13 H 27 O (CH} 2 CH 2 O) 15 (CH 2 CH 2 CH 2
O) ₃ H (Ethylene oxide on average in diadol is 15
Mol, propylene oxide on average 3 mol added polyoxyethylene polyoxypropylene alkyl ether) (3) Nonionic surfactant -3 C ₁₁ H ₂₃ CO (OCH ₂ CH ₂ ) ₉ OCH ₃

Nonionic gelling agent (1) Nonionic gelling agent-1 12-hydroxystearic acid (Kawaken Fine Chemical Co., Ltd.) (2) Nonionic gelling agent-2 N-lauroylglutamic acid dibutylamide (Ajinomoto Co., Inc.) ( 3) Nonionic gelling agent-3 A mixture of a block copolymer composed of a polystyrene block and a polybutadiene block and polynorbornene (KF Trading Co., Ltd., KF21).

Oil absorbing carrier (1) Oil absorbing carrier-1 Amorphous silica (Tokushiru N manufactured by Tokuso Corporation, oil absorption amount 250 ml / 100 g) (2) Oil absorbing carrier-2 crystalline calcium silicate (Flow manufactured by Tokuso Corporation) (Light R, oil absorption amount 450 ml / 100 g)) (3) Oil absorption carrier-3 amorphous sodium aluminosilicate (oil absorption amount 150 ml /
100g))

[0021]

[Table 1] Table 1 Examples Comparative Examples Composition (wt%) 1 2 3 4 5 6 1 2 Nonionic surfactant 1 10 23 3 5 20 23 23 23 2 2 1 1 2 8 1 1 1 3 3 1 28 33 20 1 1 1 Nonionic gelling agent 1 15 3 0.2 6 8 3 3 2 1 1 1 1 3 13 1 Oil absorbing carrier 1 0.5 1 10 1 1 2 1 8 0.1 8 1 1 3 5 10 10 10 A-type zeolite (granulation 20 18 15 30 15 18 22 30 (for coating) 0.5 1 1 1.5 1.5 1 1 1 Heavy soda ash 10 4 1 4 4 4 Light soda ash 20 15 10 10 20 20 20 Sodium sulfite 1 1 1 1 1 1 1 1 Sodium silicate 3 1 Sodium chloride 2 1 2 2 2 STPP 7 1 1 1 1 Layered polysilicate 1 5 2 1 5 5 5 Soap 1 0.6 0.5 0.6 0.6 0.6 AA-MA 2 1 0.3 1 1 1 CMC-Na 0.1 0.1 0.1 0.1 0.1 Sodium citrate 6 1 PEG 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 Silicone 0.1 0.1 0.1 0.1 0.1 0.1 0.1 Fluorescent agent 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 Enzyme 0.3 0.5 0.8 1 1 0.5 0.5 0.5 Perfume 0.1 0.1 0.1 0.2 0.2 0.1 0.1 0.1 Other minor ingredients Bla * Bla Bla Bla Bla Bl a Bla Bla Evaluation result Exudation ◎ ◎ ○ ○ ◎ ○ × △ Solidification (%) 0 0 1 3 0 2 14 27 Solubility ○ ◎ ◎ ○ ◎ ○ × ○ Angle of repose (°) 35 35 45 40 37 50 80 60 bulk density (g / cc) 0.8 0.9 0.9 0.9 0.9 0.9 0.9 0.9 Konadachi Mu nothingness slightly No No No Note Mu NO NO nothingness attachment to a little No No No No No granulator) Bla * is the remaining Means A-type zeolite: crystalline sodium aluminosilicate (manufactured by Mizusawa Chemical Co., Ltd., Shilton B) Heavy soda ash: Granular ash (manufactured by Asahi Glass Co., Ltd.) Light soda ash: Light ash (manufactured by Asahi Glass Co., Ltd.) Sodium sulfite: Sodium sulfite (manufactured by Shinshu Chemical Co., Ltd.) Sodium silicate: JIS No. 2 water glass (manufactured by Nippon Kagaku Kogyo Co., Ltd.) Sodium chloride: reagent grade sodium chloride (manufactured by Junsei Chemical Co., Ltd.) STPP: Sodium tripolyphosphate (Junsei Chemical ( stock)
Layered polysilicate: SKS-6 (Hoechst Japan) Soap: 1/1 mixture of sodium laurate and sodium oleate (manufactured by Lion Oleochemical Co., Ltd.) AA-MA: Acrylic acid and maleic acid 7/3 Copolymer, average molecular weight 50,000 CMC-Na: carboxymethyl cellulose (manufactured by Daicel Chemical Co., Ltd. 1170) Sodium citrate: reagent grade sodium citrate (manufactured by Junsei Chemical Co., Ltd.) PEG: polyethylene glycol (Lion Chemical Co., Ltd.)
Made, average molecular weight 6000) Silicone: Dimethyl silicone oil (Shin-Etsu Chemical Co., Ltd.)
Fluorescent agent: 4,4'-bis (2-sulfostyryl) biphenyl disodium (Ciba-Geigy Co., Ltd., Tinopearl CBS-X) Enzyme: Lipase / Protease / Cellulase = 1/1 /
1 mixture

[0022]

According to the present invention, a nonionic surfactant,
The combined use of the nonionic gelling agent and the oil-absorbing carrier improves the fluidity, exudation, and solidification of the detergent particles under high temperature and high humidity, and further improves the solubility of the detergent particles.

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification number Reference number within the agency FI Technical indication location C11D 3/37 C11D 3/37 (72) Inventor Seiji Abe 1-3 chome, Sumida-ku, Tokyo No. 7 within Lion Corporation

Claims (2)

[Claims] 1. A granular nonionic detergent composition comprising a nonionic surfactant, a nonionic gelling agent, and an oil absorbing carrier. 2. A method for producing a granular nonionic detergent composition, which comprises granulating a nonionic surfactant, a nonionic gelling agent, and an oil absorbing carrier with stirring, or kneading and extruding and then crushing and granulating.