JPH0987699A - Granular nonionic detergent composition and its production - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a granular nonionic detergent composition excellent in fluidity and solubility at a high temperature and high humidity and showing good rinsing properties with foam height lowered on washing by blending a nonionic surface active agent, a clay mineral, an oil-absorbing carrier, and a silicone. SOLUTION: (A) A nonionic surfactant (for example, polyoxyethylene- polyoxypropylene alkyl ether), (B) a clay mineral (for example, montmorillonite), (C) an oil-absorbing carrier (for example, amorphous silica) and (D) a silicone (for example, dimethylsilicone oil) are blended, and in addition, an inorganic cleansing builder (sodium silicate), an organic cleansing builder (polyacrylate salt), a fluorescent agent (bis(sulfostyryl)biphenyl salt), an enzyme (protease), a bleaching agent (percarbonate salt) and an extending agent (sodium sulfate) are appropriately admixed, kneaded, extruded with a kneading and extruding machine, then crushed to give the objective granular nonionic detergent composition having excellent fluidity at a high temperature and humidity and good rinsing properties with foam height lowered.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention mainly relates to a nonionic surfactant having good fluidity under high temperature and high humidity and excellent solubility, low foam height during washing, and good rinsing property. The present invention relates to a granular nonionic detergent composition as a component 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, it is an excellent surfactant with good biodegradability, low environmental load, low toxicity and no safety problem. However, nonionic surfactants are generally liquid at room temperature, and there is a concern that the nonionic surfactant exudes from the nonionic granular detergent product into the detergent container. When the nonionic surfactant oozes into the detergent container, the appearance of the product is deteriorated, the detergency is reduced due to the decrease of the nonionic surfactant in the container contact portion, and the fluidity and caking resistance of the detergent particles are further reduced. There were problems such as being adversely affected. JP-A-4-339898
In Japanese Patent Laid-Open Publication No. 2005-242242, an amount of an amorphous oil-absorbing carrier is mixed in an amount of 5 to 20% to improve 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 oozes out to deteriorate the fluidity of the detergent particles.

Recently, a drum type washing machine has been put on the market in Japan, and a detergent having a lower bubble height during washing and a better rinsing property is desired. Conventionally, in order to improve the rinsing property, for example, in Japanese Patent Laid-Open No. 4-30100, it has been proposed to add a specific soap, nonion or silicone, but the foam height at the time of washing is large and the drum type washing is performed. Not enough to use the machine.

[0004]

Therefore, the present invention is excellent in fluidity under high temperature and high humidity, has a low foam height at the time of washing suitable for a drum type washing machine, and has excellent rinsability. An object is to provide an excellent granular nonionic detergent composition and a suitable method for producing the same.

[0005]

Means for Solving the Problems The inventors of the present invention have conducted extensive studies to achieve the above objects, and as a result, by using a nonionic surfactant, a clay mineral, and a silicone in combination,
It was found that the fluidity under high temperature and high humidity, the foam height during washing and the rinsability can be solved at once. Furthermore, it has been found that, if an oil-absorbent carrier is used in combination with these components, the solubility of the granular detergent can be improved without impairing the fluidity under high temperature and high humidity. By the way, it has long been known that clay minerals exert a softening effect by adsorbing to fibers, especially cotton cloth, but when used together with a nonionic surfactant, it is difficult to adsorb to a cloth, and a softening effect as desired is obtained. The challenge was not to appear. However, the present inventor has found that the use of a nonionic surfactant, a clay mineral, an oil absorbing carrier, and silicone in combination can effectively solve the problem of the decrease in flexibility. It was also found that the granular nonionic detergent composition of the present invention can be appropriately produced by kneading and extruding a nonionic surfactant, a clay mineral, an oil absorbing carrier, and silicone, followed by crushing and granulating. The present invention has been made based on such new findings.

That is, the present invention relates to the following inventions. 1. A granular nonionic detergent composition comprising a nonionic surfactant, a clay mineral, an oil absorbing carrier, and a silicone. 2. A method for producing a granular nonionic detergent composition, which comprises kneading and extruding a nonionic surfactant, a clay mineral, an oil absorbing carrier, and crushing and granulating.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described in more detail below. In the present invention, various nonionic surfactants can be used as the nonionic surfactant. Examples of preferable nonionic surfactants include the following. (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, when it exceeds 50% by weight, it becomes difficult to sufficiently suppress the exudation, which is not preferable. As the clay mineral used in the present invention, those belonging to the smectite group and having a crystal structure of a dioctahedral type three-layer structure or a trioctahedral type three-layer structure can be preferably used. Such a clay mineral has a cleavage property and has a layered structure. This clay mineral has a smaller oil absorption amount than the oil absorbing carrier described below. Further, the clay mineral has a property of forming a nonionic surfactant by chemisorption due to a hydrogen bond between crystal layers and retaining it inside the clay mineral. The clay mineral has a property of swelling as it holds the nonionic surfactant therein. The clay mineral that can be preferably used in the present invention preferably has an oil absorption of less than 80 ml / 100 g, more preferably 30 to 70 ml / 100.
On the other hand, the bulk density is preferably 0.1 g / cc or more, particularly preferably 0.2 to 1.5 g / cc.

Specific examples of such clay minerals include montmorillonite (oil absorption: 50 ml / 100 g, bulk density: 0.3 g / cc) and nontronite (as a clay mineral having a dioctahedral three-layer structure). Oil absorption: 40 ml / 100
g, bulk density: 0.5 g / cc), beidellite (oil absorption: 62)
ml / 100g, bulk density: 0.55g / cc), pyrophyllite (oil absorption: 70ml / 100g, bulk density: 0.63g / cc), etc., on the other hand, trioctahedral three-layer structure Saponite (oil absorption: 73 ml / 100 g,
Bulk density: 0.15g / cc), Hectorite (oil absorption: 72ml)
/ 100g, bulk density: 0.7g / cc), stevensite (oil absorption: 30ml / 100g, bulk density: 1.2g / cc), talc (oil absorption: 70ml / 100g, bulk density: 0.1g / cc) ) And the like. These clay minerals are generally naturally produced or artificially hydrothermally synthesized, but are not particularly limited. Such clay minerals have been analyzed by X-ray analysis at 10 to 10.
As long as the peak derived from the spread of the clay layer detected at 20Å and the peak derived from the three-layer structure of clay detected at 4 to 5Å are developed, it can be used without particular limitation. Clay minerals, especially natural products, may contain a large amount of impurities such as quartz, cristobalite, calcite, and opal feldspar. Those containing a large amount of these impurities are not suitable for the present invention and have a purity of at least 6 or less.
0%, more preferably 70% or more, and the best one is 100%. Clay minerals that can be used particularly preferably include Na-type montmorillonite,
Ca-type montmorillonite, activated bentonite (Na /
Ca type montmorillonite), Na type hectorite, Ca
Type hectorite.

The clay mineral is preferably contained in the granular nonionic detergent composition in an amount of 0.1 to 30% by weight, more preferably 1 to 30% by weight.
It is contained in an amount of 20% by weight, particularly preferably 3 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 reduced. On the other hand, if it exceeds 30% by weight, the resulting detergent particles become too hydrophobic, and the solubility of the detergent tends to deteriorate, which is not preferable. The oil-absorptive carrier used in the present invention has the function of suppressing 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 finely divided powder that is sufficient to adsorb and retain the nonionic surfactant, physically adsorbs the nonionic surfactant, and does not swell due to this. The oil absorption of the oil-absorbing carrier used in the present invention is
It is larger than that of the above clay minerals. As a preferred oil-absorbing carrier, the oil absorption represented by the JIS-K6220 test method is 80 ml / 100 g or more, preferably 150 to 600 ml / 1.
A substance having an oil absorption of 00 g and a bulk density of less than 0.1 g / cc, preferably 0.001 to 0.08 g / cc is preferably used. As such an oil-absorbing carrier, for example, amorphous silicic acid (oil absorption: 250 ml / 100 g, bulk density: 0.06 g / cc)
(Tokuso Tokuseal, Nippon Aerosil Aerosil, Nippon Silica Nipseal), amorphous calcium silicate (oil absorption: 450 ml / 100 g, bulk density: 0.03 g / cc)
(Tokuso Fluorite, Cofran Chemical Thixolex), amorphous aluminosilicate (oil absorption: 150 ml)
/ 100g, bulk density: 0.08g / cc, magnesium silicate (oil absorption: 180ml / 100g, bulk density: 0.08g / cc), magnesium carbonate (oil absorption: 150ml / 100g, bulk density: 0.08)
g / 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. The silicone used in the present invention has the function of improving the foam height and the rinsability during washing. As such silicone, for example, dimethyl silicone oil, silicone emulsion, silicone fluoride and the like can be preferably used. Specific silicones include, for example, methyl hydrogenated silicone oil (manufactured by Toray Silicone Co., Ltd.), dimethyl silicone oil (SH200 and SH8 manufactured by Toray Silicone Co., Ltd.).
710, KF96 manufactured by Shin-Etsu Chemical Co., Ltd., TSF465 manufactured by Toshiba Silicone Co., Ltd., L-4 manufactured by Nippon Unicar Co., Ltd.
5) and epoxy-modified silicone oil (SF8411 manufactured by Toray Silicone Co., Ltd., KF10 manufactured by Shin-Etsu Chemical Co., Ltd.)
1), amino-modified silicone oil (SF8417 and SM8702 manufactured by Toray Silicone Co., Ltd., KF857 manufactured by Shin-Etsu Chemical Co., Ltd.), polyether-modified silicone oil (SH3771 manufactured by Toray Silicone Co., Ltd., KF351 manufactured by Shin-Etsu Chemical Co., Ltd.), Alkyl aralkyl modified silicone oil (SH203 manufactured by Toray Silicone Co., Ltd.), Carboxyl modified silicone oil (SF8418 manufactured by Toray Silicone Co., Ltd., X-22-3 manufactured by Shin-Etsu Chemical Co., Ltd.)
710), fluorosilicone oil (FS1265 manufactured by Toray Silicone Co., Ltd., FL10 manufactured by Shin-Etsu Chemical Co., Ltd.)
0), a silicone emulsion (SH manufactured by Toray Silicone Co., Ltd.
5510 and SM5511, Shin-Etsu Chemical Co., Ltd. KM83
A and KM89, TSA73 manufactured by Toshiba Silicone Co., Ltd.
2. LE-48 and SAG-3 manufactured by Nippon Unicar Co., Ltd.
0) etc. can be mentioned. The silicone is preferably 0.01 to 10% by weight in the granular nonionic detergent composition,
More preferably 0.05 to 5% by weight, particularly preferably 0.1.
~ 3 wt%. If this amount is less than 0.01% by weight, the effect of improving the foam height and rinsing property at the time of washing obtained is not so improved, which is not preferable. On the other hand, if it exceeds 10% by weight, the obtained detergent particles become hydrophobic and the solubility is lowered, which is not preferable.

In the granular nonionic detergent composition of the present invention,
The following components that are usually blended in detergents can be blended, and these may be blended in the granulation treatment step,
You may mix with the detergent particle 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. (12) As the organic acid, malic acid, succinic acid, citric acid and the like.

Next, the method for producing the granular nonionic detergent composition of the present invention will be described. The granular nonionic detergent composition of the present invention is, for example, a kneading extruder, preferably a closed compaction treatment device, more preferably a horizontal continuous kneader, a nonionic surfactant, a clay mineral, an oil absorbing carrier, and Introduce silicone, and optionally other optional components, and mix them while applying shearing force in a kneader to form a granulated product (solid detergent), and then by a crushing granulator, preferably a cutter mill. It can be suitably manufactured by crushing and granulating and subjecting to consolidation treatment. In this case, a single-screw or twin-screw extruder may be used in addition to the kneader. As the kneading extruder used in the present invention,
Specific examples thereof include KRC Kneader manufactured by Kurimoto Iron Works Co., Ltd. Examples of the crushing granulator used in the present invention include Fitzmill (DKAS manufactured by Hosokawa Micron
O 6 type) can be used. When crushing and granulating,
As a grinding aid, for example, crystalline sodium aluminosilicate may be added. The kneading extruder is generally 30-
60 ° C, preferably 35 to 55 ° C, more preferably 40
~ 50 ° C. 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. The treatment time is usually 0.2 to 2 minutes, preferably 0.5 to 1 minute. The crushing and granulating treatment is generally 5 to 30 ° C., preferably 1
The temperature is 0 to 25 ° C, more preferably 10 to 20 ° C. When the temperature is lower than 5 ° C, dew condensation is likely to occur, which is not preferable. On the other hand, if the temperature is higher than 30 ° C., on the contrary, adhesion to the crusher is likely to occur, which is not preferable. The treatment time is usually 1 to 30 seconds, preferably 3 to
30 seconds.

In particular, in the case of kneading and extruding, the silicone is mixed with the nonionic surfactant in advance before charging it into the kneading extruder, and then other components, clay mineral, oil absorbing carrier, Furthermore, it is preferable to form a solid detergent by charging it into a kneading extruder, kneading it, and extruding it together with other optional components, and then subjecting it to a crushing granulation treatment.
Thus, by mixing the silicone with the nonionic surfactant in advance, the silicone can be uniformly mixed in the detergent. In the present invention, a compacted product having a bulk density of 0.3 to 1.2 g / ml, preferably 0.5 to 1 g / ml can be obtained by such crushing and granulation after kneading and extrusion. Furthermore, the detergent particles thus produced may be coated with a coating agent in a rolling drum, for example. 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. Examples of the material include carbonates such as sodium carbonate and calcium carbonate, amorphous silica, calcium silicate,
A silicate such as magnesium silicate and an aluminosilicate such as zeolite can be used. The coating agent is generally added to the granular nonionic detergent composition of the present invention at 0.
It is used in an amount of 5 to 15% by weight, preferably 1 to 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.
m, particularly preferably 400 to 1000 μm.

[0016]

The present invention will be described below in more detail with reference to examples and comparative examples. In the examples and comparative examples, each sample was evaluated by the following test methods. [Solubility test] Tap water at 5 ° C was put into a 500 ml beaker, 5 g of the detergent composition was put therein, and the mixture was stirred 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: Dissolved residue (%) = {(dissolved residue at 105 ° C. for 2 hours dried product g) / 5 g} × 100 ◎: 0% ≦ dissolved residue <1% ○: 1% ≦ dissolved residue <5% Δ: 5% ≦ dissolution residue <10% ×: 10% ≦ dissolution residue% [fluidity test] 45 ° C. based on JIS Z2502
The angle of repose was measured by the drainage method. [Flexibility test] Ten cotton towels (30 cm x 60 cm) and five skin shirts were washed with a cleaning solution prepared by dissolving 20 g of detergent in 30 liters of water for 10 minutes, followed by rinsing twice and drying with heat to remove the washing cloth. The flexibility was evaluated according to the following criteria. ◯: considerably softer than the initial cloth △: slightly softer than the initial cloth ×: not different from the initial cloth

[Foam height during washing] Drum type washing machine (BO
60 g of detergent, 100 liters of tap water at 20 ° C. and 30 pieces of cotton towels were put in SCH V463 type) and washed for 10 minutes, and then the foam height was evaluated according to the following criteria. ◯: Foam does not drop too much Δ: Foam does not overflow from the washing machine X: Foam overflows from the washing machine [Rinseability] ○: Bubble height less than 5 mm Δ: Bubble height 5 mm or more and less than 10 mm ×: Bubble High 10 mm or more [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 was generated A little: A mist of powder was generated near the water surface Many: A powder was generated across the washing machine

Examples 1 to 5 Nonionic liquids were prepared by mixing nonionic surfactants, silicones, and fluorescent agents in the amounts shown in Table 1 below at 50 ° C. Next, this nonionic liquid, clay mineral, oil absorbing carrier, sodium carbonate, sodium sulfite, and A-type zeolite were continuously kneaded (KRC-2 manufactured by Kurimoto Iron Works Co., Ltd.).
Mold), kneaded at 40 ° C. for 1 minute, and extruded to produce a solid detergent. Fitzmill (Hosokawa Micron Co., Ltd., DKASO6) together with a grinding aid
It was put into a mold and pulverized until the average particle diameter became 500 μm. Finally, type A zeolite was added in a rolling drum and treated at 30 ° C. for 2 minutes to coat the granular detergent particles, and other optional components such as enzymes and fragrances were added.
A granular nonionic detergent composition having the properties shown in was obtained. Comparative Examples 1-2 A granular nonionic detergent composition having an average particle size of 500 μm was produced in the same manner as in Example 1 except that clay mineral or silicone was not used. Example 6 A granular nonionic detergent composition having an average particle size of 500 μm was produced in the same manner as in Example 1 except that silicone was directly charged into the continuous kneader. [Raw Materials] The nonionic surfactants, clay minerals, oil absorbing carriers, and silicones used in the examples and comparative examples are 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, polyoxyethylene polyoxypropylene alkyl ethers, averaged 3 mols of propylene oxide) (3) a nonionic surfactant _{-3 C 11 H 23 CO (OCH} 2 CH 2) 9 OCH 3 clay minerals (1) Clay mineral - 1 Kunipia F (Kunimine Industry Co., Ltd., natural Na-type montmorillonite purified product, purity 99%) (oil absorption: 56 ml / 100
g, bulk density: 0.34 g / cc) (2) Clay mineral-2 BPW015-10 (Maywa Sangyo Co., Ltd., natural Ca type montmorillonite, purity 66%) (oil absorption: 50 ml / 100
g, bulk density: 0.44 g / cc) (3) Clay mineral-3 Hectabrite 200 (Nissho Iwai Bentonite Co., Ltd.)
Made, natural Na-type hectorite, purity 90%) (oil absorption:
60ml / 100g, bulk density: 0.40g / cc)

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 (Tokuso Corporation) (Made by Fluorite R, oil absorption 450ml / 100g)) (3) Oil absorbing carrier-3 Amorphous sodium aluminosilicate (oil absorption 150ml / 100)
g)) Silicone methyl hydrogenated silicone oil (manufactured by Toray Silicone Co., Ltd.)

[0021]

Table 1 Table 1 Examples Comparative Examples Composition (wt%) 1 2 3 4 5 6 12 Nonionic surfactant 1 5 23 5 20 15 23 23 23 2 5 2 1 5 15 2 2 2 3 5 25 15 15 Clay mineral 1 10 3 0.2 5 4 3 3 2 10 3 4 3 3 3 10 1 Oil absorbing carrier 1 1 4 10 4 4 4 2 10 0.1 10 3 5 8 8 8 8 Silicone 0.01 0.5 3 9 0.1 0.5 0.5 A type zeolite (For granulation) 18 10 12 18 10 10 15 10 (For coating) 0.5 1 1 1.5 1.5 1 1 1 Grinding aid 5 5 5 5 5 5 5 5 Heavy soda ash 10 4 1 4 4 4 Light soda ash 20 10 10 10 20 20 20 Sodium sulfite 1 1 1 1 1 1 1 1 1 Sodium silicate 11 Sodium chloride 2 1 2 2 2 STPP 5 1 1 1 1 1 Layered polysilicate 5 3 1 5 5 5 Soap 1 0.5 0.8 0.5 0.5 0.5 AA-MA 1 1 0.5 0.5 1 11 CMC-Na 0.1 0.1 0.1 0.1 0.1 0.1 Sodium citrate 15 PEG 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 1 1 1 0.5 0.5 0.5 Fragrance 0.1 0.1 0.1 0.2 0.2 0.1 0.1 0.1 Other minor ingredients Bla * Bla Bla Bla Bla Bla Bla Bla Evaluation results Solubility ○ ◎ ◎ ○ ◎ ◎ ◎ ◎ ◎ Flexible effect ○ ○ △ △ ○ ○ × ○ Angle of repose (°) 35 35 45 40 38 35 80 35 Bulk density (g / cc) 0.8 0.9 0.9 0.9 0.9 0.9 0.9 0.9 foam height of △ ○ △ ○ ○ △ × × rinse of △ ○ ○ ○ ○ △ × × Konadachi Mu nothingness Some No No No No No Note) Bla * means the remaining amount .

The substances used in Table 1 above are as follows. A-type zeolite: crystalline sodium aluminosilicate (manufactured by Mizusawa Chemical Co., Ltd., Shilton B) Grinding aid: crystalline sodium aluminosilicate (manufactured by Mizusawa Chemical Co., Ltd., Shilton B) Heavy soda ash: Granular ash (Asahi Glass ( 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. 1 water glass (manufactured by Nippon Kagaku Kogyo Co., Ltd.) Sodium chloride: Reagent Special grade sodium chloride (manufactured by Junsei Chemical Co., Ltd.) STPP: Sodium pyrophosphate (manufactured by Junsei Chemical Co., Ltd.) Layered polysilicate: SKS-6 (Hoechst Japan) Soap: 1/1 mixture of sodium laurate and sodium oleate (Lion Oleochemical Co., Ltd.) AA-MA: 7/3 copolymer of acrylic acid and maleic acid, average molecular weight 50,000 CMC- a: carboxymethyl cellulose (Daicel Chemical Co., Ltd. 1170) sodium citrate: (manufactured by Junsei Chemical Co.) reagent grade sodium citrate PEG: Polyethylene glycol (Lion Chemical Co.
Co., Ltd., average molecular weight 6000) Fluorescent agent: 4,4′-bis (2-sulfostyryl) biphenyl disodium (Ciba-Geigy Co., Ltd., Tinopearl CBS-X) Enzyme: lipase / protease / cellulase = 1/1 /
1 mixture

[0023]

According to the present invention, a nonionic surfactant,
By mixing a clay mineral, an oil-absorbing carrier, and silicone by, for example, kneading and extrusion and then crushing and granulating, it is possible to improve the fluidity of the detergent particles under high temperature and high humidity, and further it is suitable for use in a drum type washing machine. It is possible to obtain a granular nonionic detergent composition which suppresses foam height during washing, has good rinsability, and can exert a softening effect on fibers.

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Internal reference number FI technical display location C11D 3:37) (72) Inventor Seiji Abe 1-3-7 Homsho, Sumida-ku, Tokyo Rio Within the corporation

Claims (2)

[Claims] 1. A granular nonionic detergent composition comprising a nonionic surfactant, a clay mineral, an oil absorbing carrier, and silicone. 2. A method for producing a granular nonionic detergent composition, which comprises kneading and extruding a nonionic surfactant, a clay mineral, an oil absorbing carrier, and crushing and granulating.