WO2005078058A1

WO2005078058A1 - Detergent composition

Info

Publication number: WO2005078058A1
Application number: PCT/JP2005/001998
Authority: WO
Inventors: Kimihiro Mizusawa; Yuki Yanagisawa; Katsuhiko Kasai; Shu Yamaguchi
Original assignee: Kao Corporation
Priority date: 2004-02-13
Filing date: 2005-02-10
Publication date: 2005-08-25
Also published as: MY144311A; JP4424618B2; CN1918273A; JPWO2005078058A1; CN100519717C

Abstract

A detergent composition which comprises 10 to 40 wt.% alkylbenzenesulfonic acid salt, 7 to 40 wt.% alkali agent, up to 15 wt.% nonionic surfactant, and 0.07 to 10 wt.% foam regulator, the foam regulator comprising a water-soluble organic polymer having an average molecular weight exceeding 1,000,000; a method of washing in which an object to be washed is washed with a washing liquid containing the detergent composition; and a foam regulator comprising a water-soluble organic polymer having an average molecular weight exceeding 1,000,000. The detergent composition is suitable for use in washing clothes, etc.

Description

Specification

Detergent composition

Technical field

The present invention relates to a detergent composition, a washing method using the detergent composition, and a foam control agent.

Background art

[0002] In general, the foaming of the washing liquid at the time of washing provides a consumer with a feeling of washing and a comfortable washing operation. Therefore, the design of detergent foaming is a factor that greatly affects the commercial value of detergents. On the other hand, leaving foam even after repeated rinsing after washing leads to dislike of consumers, and as with foaming, improving foam removal is also a factor that greatly affects the commercial value of detergents.

[0003] As a method for controlling detergent foam, it is common to optimize the type and Z or amount or combination of surfactants (for example, see Patent Documents 1, 2, and 3).

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[0004] It has also been attempted to reduce the amount of foam by blending a specific defoaming substance! For example, Patent Literatures 4 and 5 disclose the ability of a poly (dimethyl siloxane) to rinse clothes for rinsing clothes. Patent Literature 6 discloses that a rinsing aid uses an amino-alkyl-modified silicone oil having specific physical properties as a silicone. The technology of rinsing aid is disclosed. However, the detergent system which increases foam has a problem that foam is hard to be formed even when washing is performed in a system containing an antifoaming agent which leaves a large amount of foam even during rinsing. As a method for imparting flexibility to the clothes to be washed after washing, a method using a layered clay mineral is known. Since this effect is exerted by the action of solid lubrication by the clay mineral remaining on the clothing, technology has been developed to efficiently adsorb and leave the clay mineral on the clothing. For example, in Patent Document 7, a smectite-type clay mineral is adsorbed on clothing by a polymer flocculant to improve flexibility. However, large amounts of solid particles such as clay minerals remaining on clothing cause darkening, dullness, etc., and impair the cleaning performance of clothing. Results.

Patent Document 1: International Publication No. 98Z0507 pamphlet

Patent Document 2: International Publication No. 97Z44434 pamphlet

Patent Document 3: JP-A-11 80785

Patent Document 4: JP-A-3-186307

Patent Document 5: JP-A-4-311800

Patent Document 6: Patent No. 3162249

Patent Document 7: Patent No. 2620318

Disclosure of the invention

Problems to be solved by the invention

[0005] An object of the present invention is to provide a detergent composition having a high detergency, a high foaming property at the time of washing and a foam removing property at the time of rinsing, a washing method using the detergent composition, and a washing method. An object of the present invention is to provide a foam control agent capable of improving both the foaming of the washing liquid and the foam removal property during rinsing. Means for solving the problem

[0006] As a result of intensive studies, the present inventors have found that a detergent composition having an excellent detergency and containing a specific foam control agent has excellent lathering properties in the washing step, and furthermore, foam persistence. The present invention has been found to have excellent foam removal properties in the rinsing step while having

[0007] That is, the gist of the present invention is:

[1] Alcohol benzene sulfonate 10-40% by weight, alkaline agent 7-40% by weight, non-ionic surfactant 15% by weight or less, foam control agent 0.07-10% by weight, foam control Detergent composition in which the detergent contains a water-soluble organic polymer having an average molecular weight of more than 1,000,000,

[2] Further, the detergent composition according to [1], wherein the content of the clay mineral is 5% by weight or less, [3] The content of a water-soluble organic polymer having an average molecular weight of more than 1,000,000 in the foam control agent 30 weight % Or more of the detergent composition according to [1] or [2],

(4) the detergent composition according to any one of (1) to (3), wherein the water-soluble organic polymer is a polyacrylate; [5] The detergent composition according to any one of [1] to [3], wherein the water-soluble organic polymer is polyethylene oxide,

[6] the detergent composition according to [5], wherein the nonionic surfactant is 3% by weight or less;

(7) the detergent composition according to any one of (1) to (3), wherein the water-soluble organic polymer is polyacrylamide,

[8] [1] One [7] A method of washing an article to be washed using a washing liquid containing a detergent composition described in V ヽ, or

[9] Use as a water-soluble organic polymer foam regulator with an average molecular weight of over 1,000,000

About.

The invention's effect

[0008] Since the detergent composition of the present invention has excellent detergency and contains a specific foam control agent, it has good foaming power at the time of washing and has good defoaming at the time of rinsing. If you can!

BEST MODE FOR CARRYING OUT THE INVENTION

[0009] 1. Detergent composition

The detergent composition of the present invention contains 10 to 40% by weight of an alkylbenzene sulfonate, 7 to 40% by weight of an alkali agent, 15% by weight or less of a nonionic surfactant, and 0.07 to 10% by weight of a foam control agent. In addition, the foam control agent contains a water-soluble organic polymer having an average molecular weight of more than 1,000,000, and has an excellent detergency due to its compact structure, and improves foaming during cleaning. Power also has the effect of being able to wash well with good foam when rinsing.

[0010] <Alkylbenzene sulfonate>

The alkylbenzene sulfonate used in the present invention has high palatability and foam. For this reason, it is possible to provide a feeling of cleaning feeling and comfort during washing.

[0011] A detergent composition generally uses a detergent-based surfactant as its main base. Among them, alkylbenzene sulfonates are widely used because of their versatility and economy. Base.

[0012] Alkyl benzene sulfonates include hard alkyl groups having a branched structure in the alkyl chain. And a soft type having a linear structure. From the viewpoint of biodegradability, the alkylbenzene sulfonate is preferably of a linear type (soft type). Alkyl benzene sulfonic acid salt is obtained by sulfonating alkyl benzene.

In this case, alkylbenzene as a raw material is synthesized by various synthetic methods, but due to the difference in synthetic methods, the content of the isomers of the compounds is different, and as a surfactant after being derived into an alkylbenzene sulfonate. Affects the physical properties of From the viewpoint of detergency and productivity, an alkylbenzene sulfonate obtained from an alkylbenzene synthesized by the a-olefin method is preferable.

Further, from the viewpoint of washing resistance and hard water resistance, alkyl benzene sulfonates such as methyl branched alkyl type and methyl substituted benzene type are also preferably used.

[0013] The alkylbenzene sulfonate is obtained by sulfonating the above-mentioned alkylbenzene with sulfurous acid gas or fuming sulfuric acid, and neutralizing it with an alkaline component such as sodium hydroxide and potassium hydroxide. The salt used is not particularly limited as long as it is an I-valent cation such as an ammonium salt or an amine salt in addition to an alkali metal salt such as a lithium salt, a potassium salt, and a sodium salt. Alkaline earth metal salts such as calcium and magnesium have an effect of precipitating alkylbenzenesulfonic acid, and therefore are preferably used in as small amounts as possible. Regarding the counter ion, sodium salts are more preferable among alkali metal salts in terms of storage stability and cost.

[0014] The content of the alkylbenzene sulfonate in the detergent composition is 10 to 40% by weight, and from the viewpoint of detergency, 12% by weight or more is more preferable, and 15% by weight or more is more preferable. And more preferably 18% by weight or more. Further, the content of the alkylbenzene sulfonate is preferably 35% by weight or less, more preferably 30% by weight or less, from the viewpoint of foam rinsing after washing in the detergent composition. Among them, 10-35% by weight is more preferable, 12-30% by weight is more preferable, 15-30% by weight is more preferable, and 18-30% by weight is more preferable. In the present invention, in order to obtain a foam having a high palatability, the proportion of the alkylbenzene sulfonate in all the surfactants of the detergent composition is preferably 50% by weight or more, more preferably 60% by weight or more. More preferably, it is more preferably 70% by weight or more. [0015] <Anorekari agent>

Typical dirt is erosion and cuff dirt. These dirt are sediments such as triglycerides, waxes and their decomposition products secreted from the human body, and solid dirt such as skin keratin and foreign dust. In order to remove such fouling and stains on the cuffs, it is effective to enhance the cleanability of sebum in particular.

[0016] The alkaline agent is not only an essential component for assisting the cleaning function with a surfactant, but also uses an alkaline agent to remove fatty acid stains originating from glycerides derived from the human body. This has the advantage that other dirt can be emulsified and dispersed to remove and separate dirt from clothing and the like. In order to efficiently remove dust and stains on the cuffs, it is essential to add a certain level of alkali agent.

[0017] The alkaline agent used in the present invention dissolves in water at the time of washing to increase the pH of the washing solution, and may be any known one. Acid salts, carbonates, bicarbonates, silicates, carboxylate salts and the like.

[0018] The salt is not particularly limited, and examples thereof include an alkali metal salt such as a lithium salt, a potassium salt, and a sodium salt. However, the storage stability and cost or the ionic strength of the washing solution are increased, and the sebum dirt washing property is improved. From the standpoint of favorably acting on, for example, potassium salts and sodium salts are preferred, and sodium salts are more preferred. Among them, sodium carbonate, sodium silicate, sodium hydrogencarbonate, and a mixture thereof are preferable because they not only make the washing solution alkaline, but also exhibit an action of buffering the washing solution in a suitable pH range during washing. When the main alkaline agent in the detergent composition is a silicate, it is preferable to use it together with a carbonate from the viewpoint of storage stability and solubility.

[0019] The content of the alkaline agent in the detergent composition is 7 to 40% by weight, and is preferably 8% by weight or more and more preferably 10% by weight or more in order to maintain a pH range suitable for washing. In addition, from the viewpoint that the degree of freedom of the combination is not impaired, 38% by weight or less is preferable, and 35% by weight or less is more preferable. Among them, the content is more preferably 10 to 35% by weight, more preferably 8 to 38% by weight in the detergent composition.

[0020] <Nonionic surfactant>

As the nonionic surfactant used in the present invention, polyoxyethylene alkyl Ethers, polyoxyethylene polyoxypropylene alkyl ethers, polyoxyethylene polyoxypropylene glycols represented by the trademark Pull-Port, polyoxyethylene alkylamine, higher fatty acid alkanolamide, alkyl darcoside, alkyl glucose amide, alkyl Aminoxide and the like. In the detergent composition of the present invention

The content of the nonionic surfactant is 15% by weight or less, preferably 10% by weight or less, more preferably 5% by weight or less, from the viewpoint of foam removal during rinsing. On the other hand, in the case of polyethylene oxide, a water-soluble organic polymer having an average molecular weight of more than 100,000, the amount of nonionic surfactant is preferably 3% by weight or less in the detergent composition, more preferably 1% by weight or less. , Even more preferred, U is substantially free of,

[0021] <Foam adjuster>

In the present invention, the foam control agent refers to a component other than the surfactant used for adjusting foaming Z in the surfactant system including the alkylbenzene sulfonic acid, and is used in the washing step and the rinsing step. Refers to an agent used for adjusting foam.

[0022] One feature of the present invention is that the foam control agent contains a water-soluble organic polymer having an average molecular weight exceeding 1,000,000 (also referred to as exceeding 1,000,000). By using a foam control agent having such characteristics, the effect of increasing the foam at the time of washing, and improving the foaming property at the time of rinsing and foaming at the time of rinsing is exhibited. Accordingly, the present invention relates to a foam control agent containing a water-soluble organic polymer having an average molecular weight of more than 1,000,000.

[0023] Water-soluble organic polymers having an average molecular weight of more than 1,000,000 include, for example, acrylic acid, methacrylic acid, maleic acid, fumaric acid, acrylamide, methacrylamide, 2-atalyloylamino-2-methylpropanesulfonic acid, a Polymers or copolymers containing monomers such as lyl alcohol, hydroxyacrylic acid, ethylene oxide, and propylene oxide as constituent units, carboxymethinoresenorelose, hydroxyethinoresenorelose, and hydroxypropinolemet Those having the above-mentioned effects such as noresenorelose, guar gum, xanthan gum, starch, hyaluronic acid, carrageenan, and derivatives thereof are used. Among them, polyacrylic acid, polyethylene oxide, and polyacrylamide are preferred from the viewpoints of economy and quality stability. An average molecular weight of more than 1,000,000 is suitable as the water-soluble organic polymer of the present invention. Average molecular weight of more than 1.2 million is more preferable 1.5 million or more is more preferable 3 million or more Is preferred. More than 5,000,000 is more preferred. Further, from the viewpoint of solubility, the upper limit of the average molecular weight is preferably 100,000,000 or less, more preferably 30,000,000 or less, still more preferably 10,000,000 or less, and even more preferably 7.5,000,000 or less. Water-soluble organic polymer with an average molecular weight of more than 1,000,000 If it is a water-soluble organic polymer such as acrylic acid, there is a salt type neutralized with alkali metal salts such as lithium, potassium and sodium. Or some or all may be in acid form. When some or all are in the salt form, examples of the salt include alkali metal salts such as lithium salt, sodium salt, potassium salt, and the like, ammonium salts, and amine salts. preferable. Further, in the case of polyethylene oxide having a water-soluble organic polymer having an average molecular weight exceeding 1,000,000, the average molecular weight is preferably 2,000,000 or more, more preferably 3,000,000 or more, and further preferably 4,000,000 or more.

[0024] The molecular weight is measured by the GPC method under the following measurement conditions, and the molecular weight in terms of polyethylene oxide (PEO) is used as the measured value. That is, when the peak top molecular weight is larger than the peak top molecular weight of polyethylene oxide having a molecular weight of 1,000,000, it can be used as a polymer having "average molecular weight of 1,000,000 or more". For example, "PEO-8Z" (trade name, manufactured by Sumitomo Seika Co., Ltd.) is a water-soluble organic polymer having a foam adjusting action in the present invention. When this is measured by the following method, the peak top molecular weight is about 2.8 million. If there are multiple peaks, consider each peak as a separate polymer. For a large molecule having an average molecular weight exceeding 5,000,000, it is difficult to obtain an accurate distribution in a high molecular weight portion due to the influence of the exclusion limit and the like. Therefore, in the present invention, the peak top of the GPC measurement is defined as the average molecular weight.

[GPC Method Measurement Conditions]

The column is PWZGMPWXLZGMPWXL (manufactured by Tosoichi Co., Ltd.), and the eluent is 0.2 M phosphate buffer (KHPO, NaHPO, pH = 7) / CHCN =

Column temperature: 40 ° C using 2 4 2 4 3 9Zl

The flow rate is 1 mlZmin, and the sample concentration is 10-100 μgZml. The detector uses RALLS.

[0026] However, for simplicity, an approximate value of the average molecular weight can be estimated by GPC analysis using a RID (differential refractometer).

[0027] Further, as another foam adjusting agent, an antifoaming agent for suppressing the foam amount may be mentioned. Examples of the antifoaming agent include polyorganosiloxane and derivatives thereof.

[0028] When a large amount of a foaming agent having only a foaming effect is blended as a foam control agent, a large amount of a defoaming agent having only a defoaming effect is blended, as well as poor foaming during rinsing. In this case, water-soluble substances with an average molecular weight of more than 1,000,000 are used in all foam control agents as a substance that has both a foam-increasing effect during washing and a defoaming effect during rinsing, because foaming during washing is unlikely to occur. The proportion of the organic polymer is preferably at least 10% by weight, more preferably at least 30% by weight, even more preferably at least 50% by weight, further preferably at least 70% by weight, further preferably at least 70% by weight. 100% by weight.

[0029] In the detergent composition of the present invention, the foam control agent is contained in an amount of 0.07 to 10% by weight, but from the viewpoint of obtaining sufficient foaming and rinsing effects, 0.1% by weight or more is preferred. 0.2% by weight or more is more preferable 0.3% by weight or more is further preferable 0.5% by weight or more is further preferable. In addition, from the viewpoint of not impairing the degree of freedom of mixing other components in the detergent composition, the foam modifier is preferably 8% by weight or less, more preferably 5% by weight or less. Among them, the content is preferably 0.1 to 8% by weight, more preferably 0.2 to 5% by weight, further preferably 0.3 to 5% by weight, more preferably 0.3 to 5% by weight in the detergent composition. Preferably, it is 0.5-5% by weight.

[0030] <Clay mineral>

Clay minerals are cation-exchangeable layered silicates that can form an interlaminar complex by intercalating organic substances between crystal structure layers. These clay minerals include those classified into the kaolinite group, neurophilite group, smectite group, vermiculite group, mica group, brittle mica group, and chlorite group, and swelling fluorine mica as a synthetic substance. And the like. An example of such a clay mineral is a smectite clay mineral.

. Smectite clay minerals include montmorillonite, which is well known as a main component of bentonite as a natural product, as well as paiderite, hectorite, savonite, nontronite, etc., which impart flexibility to washed clothes. It is known to incorporate them into detergents for the purpose. On the other hand, when a large amount of clay mineral is blended, the interaction between the water-soluble organic polymer having an average molecular weight of over 1,000,000 and the clay mineral referred to in the present application causes a large amount of clay mineral particles to remain on clothing, which causes darkening and dulling. It may cause the washing of clothes.

[0031] In the detergent composition of the present invention, a small amount of clay mineral is blended for the purpose of imparting flexibility. In the detergent composition of the present invention, the clay mineral is preferably 5% by weight or less, more preferably 3% by weight or less, and still more preferably 1% by weight or less. Further, it is preferable not to substantially mix them.

[0032] <Other surfactants>

The detergent composition of the present invention can contain known surfactants other than the alkylbenzene sulfonic acid salt and the nonionic surfactant in a known range, as long as the effects of the present invention are not impaired. is there. The surfactants are roughly classified into cationic, aionic, and amphoteric surfactants. Above all, alkyl sulfate, which is an anionic surfactant, is preferably 15% by weight or less in the detergent composition, more preferably 10% by weight or less, more preferably 5% by weight from the viewpoint of solubility. It is more preferred that:

[0033] <Sequestering agent>

The detergent composition of the present invention may contain a known sequestering agent. The sequestering agent is added for the purpose of suppressing deterioration of the surfactant activity of the surfactant depending on hardness components such as calcium ions in the washing water. Metal ion sequestering agents used in the present invention include condensed phosphates, zeolites (crystalline aluminoketes) such as A-type, X-type, Y-type and P-type, crystalline silicates, ethylenediaminetetraacetate, Carboxylates such as oxalate, citrate and fumarate are exemplified. From the viewpoint of economy, condensed phosphates and zeolites are preferred as main sequestering agents in the detergent composition. When the main sequestering agent in the detergent composition is a condensed phosphate, it is preferable to use it together with zeolite from the viewpoint of storage stability. The content of the sequestering agent in the detergent composition is preferably 5% by weight or more, more preferably 10% by weight or more, further preferably 15% by weight or more. On the other hand, it is preferably 40% by weight or less, more preferably 30% by weight or less, and still more preferably 25% by weight or less, from the viewpoint of not impairing the flexibility of compounding.

[0034] <Other components>

Further, in addition to the water-soluble organic polymer having an average molecular weight of more than 1,000,000, the detergent composition of the present invention may further contain a water-soluble organic polymer having an average molecular weight of 1,000,000 or less for the purpose of sequestering polyvalent metal ions in a washing solution and dispersing solid particles. Can be blended. For example, naphthalene sulfonate formalin condensates and their derivatives, carboxylic acid polymers, polyethylene polymers 1.Sugar derivatives such as carboxymethylcellulose, aminocarboxylic acid polymers such as polydalioxylate and polyaspartate, acrylamide polymers, vinyl alcohol polymers, pyrrolidone polymers, ligninsulfone polymers, and sulphine Z-maleic acid-based copolymer, imidazole-based polymer, polyphosphoric acid-based polymer, cationized starch and the like. As the carboxylic acid-based polymer, homo- or copolymers containing at least one selected from the group consisting of acrylic acid, methacrylic acid, maleic acid, fumaric acid, and hydroxyacrylic acid as essential monomers, and derivatives thereof, Or salts thereof. Among them, carboxylic acid polymers, sugar derivatives such as carboxymethyl cellulose, and polyphosphate polymers are preferred. In addition, when the water-soluble organic polymer having an average molecular weight of more than 1,000,000 is polyethylene oxide, particularly when used in combination with a partially saponified butyl alcohol-based polymer, the partially keni-do vinyl alcohol-based polymer is used in the detergent composition. 5% by weight or less is preferred, 3% by weight or less is more preferred, and 1% by weight or less is more preferred. In addition, it is not necessary to substantially mix them. When a sugar derivative such as carboxymethylcellulose is used, from the viewpoint of detergency, 0.05% by weight or more of the detergent composition is preferably 0.1% by weight or more, more preferably 0.3% by weight or more. More preferred. Further, from the viewpoint of solubility, 10% by weight or less is preferable, 7% by weight or less is more preferable, and 5% by weight or less is more preferable in the detergent composition.

Examples of the form of the detergent composition of the present invention having the above-mentioned configuration include powder, liquid, paste, and tablets, but are not particularly limited. Above all, powders, pastes, and tablets are more preferable in terms of solubility because powders, pastes, and tablets are more preferable in terms of freedom of blending of the alkali agent. In addition, their production methods are not particularly limited, and can be produced by known methods. For example, in the case of powder, spray drying, dry neutralization, dry granulation, dry blending, fluidized bed drying, thin film drying, extrusion granulation, tumbling granulation, stirring granulation It can be produced by a consolidation granulation method, a surfactant loading method and a combination thereof. For tablets, for example, a manufacturing method such as a tableting (tableting) method or a roll press method can be used.

In these production methods, production conditions such as production temperature and time are not particularly limited. Absent.

[0036] The detergent composition of the present invention obtained by the kagaru production method is suitably used for washing clothes and the like.

[0037] 2. Washing method

The invention also relates to a washing method. The washing method of the present invention is characterized in that an object to be washed is washed using a washing liquid containing the detergent composition.

In addition, at the time of washing, there is an effect that washing can be performed with good lather and good lather.

[0038] As an embodiment of the washing method, from the viewpoint of simplicity, a method of washing with a two-tub washing machine, a fully automatic washing machine, and a drum type washing machine, and from the viewpoint of detergency and economy, a washing method by hand washing. Is mentioned. Above all, washing with a two-tub washing machine that allows visual observation of foam having a taste, and hand washing are preferred, and hand washing is more preferred. The washing conditions such as the amount of the washing liquid, the type and amount of the object to be washed, the washing time and the washing temperature in these methods are not particularly limited.

[0039] The washing liquid used in the present invention can be prepared, for example, by dissolving and dispersing the detergent composition in a solvent such as water. The content of the detergent composition in the washing liquid is preferably 0.5 gZL or more from the viewpoint of detergency, and preferably 20 gZL or less from the viewpoint of economical efficiency. Further preferably, it is 1.0 to 15 g / L, more preferably 1.5 to 10 g ZL, and still more preferably 3.0 to 10 OgZL.

Example

Hereinafter, embodiments of the present invention will be further described and disclosed with reference to examples. This example is merely illustrative of the invention and is not meant to be limiting in any way.

(Measurement of molecular weight)

The molecular weight of each organic polymer used in this example was measured by the method described above. Sample 1 Toagosei Co., Ltd. sodium polyacrylate “ARON A-20P”

Sample 2 Toagosei Co., Ltd. Acrylamide methylpropanesulfonic acid Z Acrylic acid copolymer Na salt “Aron A-50P”

Sample 3 Polyethylene oxide “PEO—PF” manufactured by Sumitomo Seika Co., Ltd. Sample 4 Polyethylene oxide “PEO-8Z” manufactured by Sumitomo Seika Co., Ltd.

Sample 5 Polyethylene oxide “PEO-3ZJ” manufactured by Sumitomo Seika Co., Ltd.

[0042] Measurement results

Sample 1 (peak) average molecular weight 5 million

Sample 2 (peak) average molecular weight 5.5 million

Sample 3 (peak) average molecular weight 5 million

Sample 4 (peak) average molecular weight 2.8 million

Sample 5 (peak) average molecular weight 1.2 million

The washing conditions in the present invention are shown below.

(Washing process)

Washing machine `` Ginga VH-360S1J '' manufactured by Toshiba Corp. (CaZM g; 7Z3) 10 L was injected, and then 50 g of the detergent composition was added.Preliminary stirring was performed for 1 minute in a strong stirring mode, followed by immersion for 15 minutes and washing in a strong stirring mode for 10 minutes. The foam height (cm) was measured by measuring the foam height (foaming property) by stopping the agitation and flattening by hand so that the foam thickness was almost uniform on the liquid surface. The measurement was carried out immediately using.

(Rinse step)

After draining the washing liquid used in the washing process, the clothes to be washed were dehydrated for 5 minutes by a dehydrator. Next! Then, 30 L of hard water (CaZMg = 7Z3) at 25 ° C. and 4 ° DH water was poured into the washing machine, stirred for 5 minutes, and then the clothes to be washed were dehydrated (5 minutes) (first rinsing). The cycle of rinsing, draining and dehydrating under the same conditions was repeated, and the rinsing property was evaluated with the third rinsing water before drainage based on the following evaluation criteria.

[0045] 6: There are no bubbles on the rinsing water surface. There is no foam on the washing liquid level after the second rinse.

5: No bubbles on rinse surface.

4: A small amount of foam remains on the rinse surface!

3: Less than half bubbles remain on the rinse surface. 2: More than half bubbles remain on the rinse surface. However, the liquid level that is not covered with bubbles is slightly visible.

1: Rinse water surface, the whole is covered with foam.

0: Rinse water surface, the whole is covered with multiple layers of foam.

(Solubility test)

Into 1 liter of 4 ° DH hard water (Ca, Mg: 7,3) adjusted to 5 ° C, put 1.OOg of the sample, and in a 1 liter beaker (105 mm inner diameter), rotate 800 rZm, stirrer (length) (35 mm, diameter 8 mm) for 1 minute.

Dissolution rate (%) = {1- (T / S)} X 100

S: Input weight of sample (g)

T: When the aqueous solution obtained under the above stirring conditions is supplied to the above sieve (mesh opening: 200 mesh), the dry weight of the residue of the sample remaining on the sieve (drying conditions: at a temperature of 105 ° C) After holding for 1 hour, it was held in a desiccator (25 ° C) containing silica gel for 30 minutes) (g).

[0047] The solubility level is shown below from the calculated dissolution rate.

◎: Dissolution rate 80% -100%

〇: Dissolution rate less than 50-80%

Δ: dissolution rate 30-less than 50%

X: dissolution rate 0-less than 30%

(Average particle diameter)

The average particle size of the detergent composition was determined using a sieve specified in JIS Z 8801. For example, use a 9-stage sieve and pan with an opening force S of 2000 μm, 1400 μm, 1000 μm, 710 μm, 500 μm, 355 μm, 250 μm, 180 m, and 125 m. And attached to a low tapping machine (HEIK O SEISAKUSHO, tapping: 156 times Z minutes, rolling: 290 times Z minutes), 100 g of sample is vibrated for 10 minutes, sieved, and the pan, 125 / zm When the weight frequency is accumulated on the pan and each sieve in the order of 180 m, 250 μm, 355 μm, 500 μm, 710 μm, 1000 μm, 1400 μm, 2000 μm, When the opening of the first sieve with a weight frequency of 50% or more is a μm, and when the opening of the sieve is one step larger than a μm and the opening of the sieve is b μm, the weight up to the sieve with the saucer force am Add the frequency integration to c% and am sieve If the weight frequency is (1%,

(Average particle size) = ιο ^Α

A = (50- (c-d / (log b-log a) x log b)) / (d / (log b— log a))

Can be determined according to

The sieve used was appropriately adjusted so that the particle size distribution of the measured powder could be accurately estimated.

[0049] (moisture)

The measurement of the water content of the powder was performed by an infrared moisture meter method. That is, 3 g of the sample was weighed into a sample dish of known weight, and the sample was heated and dried for 3 minutes by an infrared moisture meter (Infrared lamp 185W, manufactured by Kett Science Laboratory Co., Ltd.). After drying, the sample pan and dried sample were weighed. The difference between the weights of the container and the sample before and after drying obtained by the above operation and the weight of the sample were divided by the force of the sample and multiplied by 100 to calculate the water content in the sample.

[0050] (Detergency test)

An artificially stained cloth having the following composition was attached to the cloth to prepare an artificially stained cloth. The artificially contaminated liquid was attached to the cloth by printing the artificially contaminated cloth on the cloth using a gravure roll coater. The process of making the artificially contaminated cloth by attaching the artificially contaminated liquid to the cloth was performed with a gravure roll cell volume of 58 cm ³ Zm ² , a coating speed of 1. Om / min, a drying temperature of 100 ° C, and a drying time of 1 minute. The cloth used was a cotton gold cloth 2003 (manufactured by Tanito Shoten).

[Composition of artificial contaminated liquid]

Lauric acid 0.44% by weight

Myristic acid 3.09% by weight

Pentadecanoic acid 2.31% by weight

Palmitic acid 6.18% by weight

Heptadecanoic acid 0.44% by weight

Stearic acid 1.57% by weight

Oleic acid 7.75% by weight

Torisai rain 13.06 weight ^_0/0 N-Xadecyl palmitate 2.18% by weight

Squalene 6.53% by weight

Egg white lecithin liquid crystal 1.94% by weight

Kanuma red clay 8.11% by weight

Carbon black 0.01% by weight

Tap water balance

[0052] <Detergency test operation>

1.33 g of the detergent composition was dissolved in 1000 mL of water (5 ° DH: CaZMg = 7Z3) at 25 ° C. Next, transfer the mixture at 25 ° C to a sample cup of a mixing-type detergency tester (Terg-O-Tometer), put the five artificially stained cloths described above, and rotate them at a rotation speed of 100 rpm at 5rZm for 10 minutes. Stirred. Next, take out the artificially contaminated cloth, squeeze it lightly by hand so that the water content is 200% by weight or less, put it in 1000 mL of 25 ° C water (5 ° DH: CaZMg = 7Z3), and mix vigorously. Rinsing was performed for 3 minutes using a detergency tester (rotation speed 100 ± 5 rZm), and this rinsing operation was performed twice in total. Next, after air drying, iron finishing was performed.

The reflectance at 550 nm (300A manufactured by Nippon Denshoku Industries Co., Ltd.) before and after cleaning with the original cloth was measured, and the cleaning rate (%) was calculated by the following equation. The results are shown in Table 4.

Cleaning rate (%) = (L -L) / (L -L) X 100

2 1 0 1

L: Reflectance of original cloth

0

L: Reflectance of contaminated cloth before cleaning

L: Reflectance of contaminated cloth after cleaning

2

[0054] The following raw materials were used unless otherwise specified.

Sodium alkylbenzene sulfonate: NEOBEREX G-65 (Kao Corporation) Alcohol ethoxylate (C12 (E06)): Emalgen 108 (Kao Corporation) Sodium alkyl sulfate: Emal 10 powder (Kao Corporation) )

Alkinolamide: fatty acid diethanolamide (Aminone PK-02S, manufactured by Kao Corporation)

)

Ishizaki: Neutralize palmitic acid (Lunac P-95 (manufactured by Kao Corporation)) with caustic soda and spray One that has been powdered by drying.

Sodium sulfate: anhydrous neutral sodium sulfate (manufactured by Shikoku Chemicals Co., Ltd.)

No.2 silicate: Osaka Soda Co., Ltd. ¾ [IS No.2

Fluorescent dye: Tinopearl CBS—X (C¾a Geigy AG)

Sodium carbonate: Dense ash (average particle size: 290 μm, manufactured by Central Glass Co., Ltd.)

Zeolite: A-type zeolite (average particle size: 3.5 m, manufactured by Zeobuilder)

Sodium tripolyphosphate: manufactured by Mitsui Chemicals, Inc.

Sodium hydrogen carbonate: manufactured by Tosoh I

Polyethylene glycol: XG1300 (Nippon Shokubai Co., Ltd., average molecular weight 13000) Carboxymethylcellulose: F10MC (Nippon Paper Chemical Co., Ltd.)

Sodium acrylate Z sodium maleate copolymer (molar ratio: 7Z3, average molecular weight (MW) 70,000): manufactured by Toagosei Co., Ltd.

Oil-absorbing carrier: Carplex (manufactured by Shionogi & Co., Ltd.)

Nolan agent: same as above sodium sulfate

Aron A—20P: sodium polyacrylate (average molecular weight: 5 million, manufactured by Toagosei Co., Ltd.) alon A—50P: acrylamidomethylpropanesulfonic acid Z acrylic acid copolymer Na salt (average molecular weight: 5.5 million, manufactured by Toagosei Co., Ltd.) )

PEO-PF: Polyethylene oxide (average molecular weight 5 million, manufactured by Sumitomo Seika Co., Ltd.) PEO-8Z: Polyethylene oxide (average molecular weight 2.8 million, manufactured by Sumitomo Seika Co., Ltd.) PEO-3Z: Polyethylene oxide (average molecular weight 120 Manga, Sumitomo Seika Co., Ltd.) Enzyme mixture: Sabinase 12.0TW (Novozyms), Ribolase 100T (Novozyms), Cellzym 0.1T (Novozyms), Termamyl 60T (Novozyms)

: 1: 1: 1 (weight ratio)

Antifoaming agent: 100% reduced-terminal maltodextrin Z maltodextrin (Dextrose equivalent = 5, repeating unit of glucose unit = 8) = 40/60 (weight ratio) mixture is used as carrier, and silicone (compound type '' FS Antifoam)

Powder antifoam prepared by the method described in 7-70594

Below, the preparation method of a detergent composition is described. <Comparative Example 1>

In this method, a powder detergent composition was produced by a spray drying method and a dry blending method. That is, 54.2 kg of water was put into a jacketed mixing tank equipped with a stirrer, and after the water temperature reached 37 ° C, 27.7 kg of sodium alkylbenzenesulfonate (purity 65%) and No. 2 silicate (purity 40%) were used. 12.5 kg, Acrylic acid Z maleic acid copolymer (molar ratio: 7Z3, purity 40%) 2.5 kg, polyethylene glycol (purity 60%) 0.83 kg, sodium sulfate 25 kg, sodium carbonate 20 kg, zeolite 20 kg Stirred for 60 minutes. The water content of this slurry preparation was 45% by weight, and the final temperature of this preparation was 50 ° C. After confirming that the mixture was sufficiently mixed, the prepared solution was spray-dried to obtain a powder detergent composition precursor A. Next, as a final blending step, a concrete mixer (manufactured by Koyo Machinery Co., Ltd., capacity: 40 L) at an inclination angle of 30 degrees, a rotation speed of 20 rZm, and 3 minutes, the powder detergent composition precursor A 19.08 kg, a balance agent 600 g, 40 g of a fluorescent dye, 200 g of an enzyme mixture, and 80 g of a fragrance were dry-blended to obtain 20 kg of a powder detergent composition (Comparative Example 1). The water content of the obtained powder detergent composition was 5.9% by weight.

Each detergent composition was obtained in the same manner as in Comparative Example 1 except that the following raw materials were dry-blended in the final dry blending step in the preparation example of Comparative Example 1 in the previous stage. The water content of each of the obtained powder detergent compositions was 5.9% by weight.

Comparative Example 2: Powder detergent precursor A 19.08 kg, Aron A-20P 10 g, balance agent 590 g, fluorescent dye 40 g, enzyme mixture 200 g, fragrance 80 g

Comparative Example 4: 19.08 kg of powder detergent precursor A, 600 g of defoamer, 40 g of fluorescent dye, 200 g of enzyme mixture, 80 g of fragrance

Comparative Example 5: 19.08 kg of powder detergent precursor A, 600 g of stone, 40 g of fluorescent dye, 200 g of enzyme mixture, 80 g of fragrance

Comparative Example 6: 18.7 kg of powder detergent precursor A, 600 g of alkanolamide, 40 g of fluorescent dye, 200 g of enzyme mixture, 80 g of fragrance

Example 1: 19.08 kg of powder detergent precursor A, 16 g of Aron A-20P, 584 g of balance agent, 40 g of fluorescent dye, 200 g of enzyme mixture, 80 g of fragrance Example 2: Powder detergent precursor A 19.08 kg, Aron A-20P 600 g, fluorescent dye 40 g, enzyme mixture 200 g, fragrance 80 g

Example 3: Powder detergent precursor A 19.08 kg, Aron A-50P 600 g, fluorescent dye 40 g, enzyme mixture 200 g, fragrance 80 g

Example 4: 19.08 kg of powder detergent precursor A, 16 g of PEO-8Z, 584 g of balance agent, 40 g of fluorescent dye, 200 g of enzyme mixture, 80 g of fragrance

Example 5: 19.08 kg of powder detergent precursor A, 600 g of PEO-8Z, 40 g of fluorescent dye, 200 g of enzyme mixture, 80 g of fragrance

Example 6: 19.08 kg of powder detergent precursor A, 600 g of PEO-3Z, 40 g of fluorescent dye, 200 g of enzyme mixture, 80 g of fragrance

37 kg of water was put into a jacketed mixing tank, and after the water temperature reached 37 ° C, 1. Okg of carboxymethylcellulose, 21. Okg of sodium sulfate, and 15 kg of zeolite were added, followed by stirring for 60 minutes. The water content of this slurry preparation was 50% by weight, and the final temperature of this preparation was 50 ° C. After confirming that the mixture was sufficiently mixed, the powder detergent composition precursor B was obtained by spray drying.

[0060] Next, a powder detergent composition precursor B (212 g), sodium carbonate (600 g), sodium hydrogen carbonate (30 g), an oil-absorbing carrier (330 g), and aron A—20 P (90 g) were placed in a 20-liter Lodige mixer (manufactured by Matsuzaka Giken Co., Ltd.) Then, 6 g of a fluorescent dye was added, and 540 g of alcohol ethoxylate was sprayed with stirring. Stirring was continued for 7 minutes. When the mixture became sufficiently homogeneous, 150 g of zeolite was added, and further, with stirring, 12 g of fragrance was added by spraying. The number of revolutions was reduced, and 30 g of the enzyme mixture was further mixed under low stirring to obtain a powder detergent composition (Comparative Example 3). The water content of the yarn was 3.4% by weight.

Warm water at 37 ° C, 12.3 kg of sodium alkylbenzenesulfonate (purity 65%), 12.5 kg of No.2 silicate (purity 40%) in a mixing tank, acrylic acid Z maleic acid copolymer (molar ratio: 7 Z3, purity 40) %) 2.5 kg, polyethylene glycol (purity 60%) 0.83 kg, sodium sulfate 35.Okg, sodium carbonate 20.Okg, zeolite 20.Okg, and stir for 60 minutes It was. The water content of this slurry preparation was 45% by weight, and the final temperature of this preparation was 50 ° C. After confirming that the mixture was sufficiently mixed, the prepared liquid was spray-dried to obtain a powder detergent composition precursor C. Next, as a final blending step, a concrete mixer (manufactured by Koyo Kikai Sangyo Co., Ltd., capacity 40 L) at an inclination angle of 30 degrees and a rotation speed of 20 rZm for 3 minutes, the powder detergent composition precursor C 19.08 kg, Aron A-20P 16 g , 584 g of a balance agent, 40 g of a fluorescent dye, 200 g of an enzyme mixture, and 80 g of a fragrance were dry-blended to obtain 20 kg of a powder detergent composition (Comparative Example 7). The water content of the obtained powder detergent composition was 5.9% by weight.

In a mixing tank, warm water at 37 ° C, 15.38 kg of sodium alkylbenzenesulfonate (purity 65%), 8.Okg of sodium alkylsulfate, 12.5 kg of No.2 silicate (purity 40%), acrylate Z maleic acid copolymer (mol Ratio: 7Z3, purity 40%) 2.5 kg, polyethylene glycol (purity 60%) 0.83 kg, sodium sulfate 25. Okg, sodium carbonate 20. Okg were added, and the mixture was stirred for 60 minutes. The water content of this slurry preparation was 45% by weight, and the final temperature of this preparation was 50 ° C. After confirming that the mixture was sufficiently mixed, the prepared liquid was spray-dried to obtain a powder detergent composition precursor D. A powder detergent composition (Example 7) was obtained in the same procedure, except that the powder detergent composition precursor A of the preparation example of Example 2 was replaced with the powder detergent composition precursor D. The water content of the obtained composition was 5.9% by weight.

Warm water at 37 ° C in a mixing tank, sodium alkylbenzene sulfonate (purity 65%) 27.7 kg, No.2 silicate (purity 40%) 12.5 kg, acrylic acid maleic acid copolymer (molar ratio: 7 Z3, purity 40 %) 2.5 kg, polyethylene glycol (purity 60%) 0.83 kg, sodium sulfate 27. Okg, sodium carbonate 20. Okg, sodium tripolyphosphate 18. Okg, and stirred for 60 minutes. The water content of this slurry preparation was 45% by weight, and the final temperature of this preparation was 50 ° C. After confirming that the mixture was sufficiently mixed, the prepared liquid was spray-dried to obtain a powder detergent composition precursor E. Next, as a final blending step, a concrete mixer (manufactured by Koyo Machinery Co., Ltd., capacity: 40 L) at an inclination angle of 30 degrees, a rotation speed of 20 rZm, and 3 minutes was used to prepare the powder detergent composition precursor E19.08 kg, PEO. — PF 16g, 8 g of antifoaming agent, 176 g of balance agent, 40 g of fluorescent dye, 200 g of enzyme mixture, 400 g of zeolite, and 80 g of fragrance were dry-blended to obtain 20 kg of a powder detergent composition (Example 8). The water content of the obtained yarn was 5.9% by weight.

In a mixing tank, warm water at 37 ° C, 27.7 kg of sodium alkylbenzenesulfonate (purity 65%), 0.5 kg of alcohol ethoxylate, 12.5 kg of No.2 silicate (purity 40%), and maleic acid acrylate copolymer (mol Ratio: 7Z3, purity 40%) 2.5 kg, polyethylene glycol (purity 60%) 0.83 kg, sodium sulfate 22.9 kg, sodium carbonate 20.Okg, zeolite 18.Okg, and stirred for 60 minutes. The water content of this slurry preparation was 45% by weight, and the final temperature of this preparation was 50 ° C. After confirming that the mixture was sufficiently mixed, the prepared liquid was spray-dried to obtain a powder detergent composition precursor F. Next, as a final blending step, a concrete mixer (manufactured by Koyo Machinery Co., Ltd., capacity 40 L), an inclination angle of 30 degrees, a rotation speed of 20 rZm, and 3 minutes were used to prepare the powder detergent composition precursor F. 36 kg, PEO-PF 20 g, balance agent 900 g, fluorescent dye 40 g, enzyme mixture 200 g, zeolite 400 g, and fragrance 80 g were dry-blended to obtain 20 kg of a powder detergent composition (Example 9). The water content of the obtained composition was 5.9% by weight.

The powder detergent composition precursor E described in Example 8, E 19.08 kg, PEO-PF 16 g, zeolite 400 g, defoamer 40 g, fluorescent dye 40 g, enzyme mixture 200 g, balance agent 144 g, and fragrance 80 g are described in Example 9. Dry blending was performed in the same manner as in the above method to obtain 20 kg of a powder detergent composition (Comparative Example 8). The water content of the obtained composition was 5.9% by weight.

In a mixing tank, warm water at 37 ° C, sodium alkylbenzenesulfonate (purity 65%) 27.69kg, alcohol ethoxylate 5.〇kg, No.2 silicate (purity 40%) 12.5kg, acrylic acid maleic acid copolymer ( Molar ratio: 7Z3, purity 40%) 2.5 kg, polyethylene glycol (purity 60%) 0.83 kg, sodium sulfate 22.9 kg, sodium carbonate 20.0 kg, zeolite 18.0 kg were added, followed by stirring for 60 minutes. The water content of this slurry preparation was 45% by weight, and the final temperature of this preparation was 50 ° C. You can confirm that they are mixed well After that, the prepared solution was spray-dried to obtain a powder detergent composition precursor H. Next, as a final blending step, a concrete mixer (manufactured by Koyo Machinery Co., Ltd., capacity 40 L) at an inclination angle of 30 degrees and a rotation speed of 20 rZm for 3 minutes, the powder detergent composition precursor H 19.26 kg, PEO-PF 20 g, 40 g of a fluorescent dye, 200 g of an enzyme mixture, 400 g of zeolite, and 80 g of a fragrance were dry-blended to obtain 20 kg of a powder detergent composition (Comparative Example 9). The water content of the obtained composition was 5.9% by weight.

In a mixing tank, warm water at 37 ° C, sodium alkylbenzene sulfonate (purity 65%) 27.69 kg, No.2 silicate (purity 40%) 2.5 kg, acrylic acid maleic acid copolymer (molar ratio: 7 Z3, purity 40 %) 2.5 kg, polyethylene glycol (purity 60%) 0.83 kg, sodium sulfate 46.82 kg, sodium carbonate 1. Okg, sodium tripolyphosphate 18. Okg, and stirred for 60 minutes. The water content of this slurry preparation was 45% by weight, and the final temperature of this preparation was 50 ° C. After confirming that the mixture was sufficiently mixed, the powder detergent composition precursor I was obtained by spray drying. Next, as a final blending step, a concrete mixer (manufactured by Koyo Machinery Co., Ltd., capacity: 40 L) at an inclination angle of 30 degrees and a rotation speed of 20 rZm for 3 minutes, 18.46 kg of the powdered detergent composition precursor I, 18.46 kg of PEO- 16 g of PF, 400 g of zeolite, 40 g of fluorescent dye, 200 g of enzyme mixture, 800 g of balance agent, and 80 g of fragrance were dry-blended to obtain 20 kg of a powder detergent composition (Comparative Example 10). The obtained composition had a moisture content of 6.0% by weight.

Each detergent composition was obtained in the same manner as in Comparative Example 10 except that the following raw materials were dry-blended in the final dry blending step in the preparation example of Comparative Example 10 in the former stage. The water content of the obtained powdery detergent was 6.0% by weight.

Comparative Example 11 Powder detergent composition precursor I 18.46 kg, zeolite 400 g, sodium carbonate

400g, balance agent 400g, PEO-PF 16g, fluorescent dye 40g, enzyme mixture 200g, fragrance 80g

Comparative Example 12 Powder Detergent Composition Precursor I 18.46 kg, zeolite 400 g, sodium carbonate 800 g, PEO-PF 16 g, fluorescent dye 40 g, enzyme mixture 200 g, fragrance 80 g <Example 10>

In a mixing tank, warm water at 37 ° C, sodium alkylbenzene sulfonate (purity 65%) 27.7 kg, No.2 silicate (purity 40%) 5. Okg, acrylic acid maleic acid copolymer (molar ratio: 7 Z3, purity 40) %) 2.5 kg, polyethylene glycol (purity 60%) 0.83 kg, sodium sulfate 30.82 kg, sodium carbonate 5. Okg, sodium tripolyphosphate 18. Okg, and stirred for 60 minutes. The water content of this slurry preparation was 45% by weight, and the final temperature of this preparation was 50 ° C. After confirming that the mixture was sufficiently mixed, the powder detergent composition precursor J was obtained by spray drying. Next, as a final blending step, a concrete mixer (manufactured by Koyo Machinery Co., Ltd., capacity: 40 L) with an inclination angle of 30 degrees and a rotation speed of 20 rZm for 3 minutes, the powder detergent composition precursor J 16.26 kg, PEO- 16 g of PF, 400 g of zeolite, 40 g of fluorescent dye, 200 g of enzyme mixture, 3.0 kg of balance agent, and 80 g of fragrance were dry-blended to obtain 20 kg of a powder detergent composition (Example 10). The water content of the obtained composition was 6.0% by weight.

Each detergent composition was obtained in the same manner as in Example 10 except that the following raw materials were dry-blended in the final dry-blending step in the preparation example of Example 10 in the former stage. The water content of the obtained powdery detergent was 6.0% by weight.

Example 11 Powder detergent composition precursor J 16.26 kg, zeolite 400 g, sodium carbonate

1.4 kg, balance agent 1.6 kg, PEO-PF 16 g, fluorescent dye 40 g, enzyme mixture 200 g, fragrance 80 g

Example 12 Powder detergent composition precursor J 16.26 kg, zeolite 400 g, sodium carbonate 3.0 kg, PEO-PF 16 g, fluorescent dye 40 g, enzyme mixture 200 g, fragrance 80 g Obtained in Examples and Comparative Examples Tables 1 and 2 show the compositions of the powder detergent compositions. Table 3 shows the physical properties (foaming property, rinsing property, average particle size, solubility) of the obtained powder detergent composition, and Examples 10-12 and Comparative Examples 10-12 show the cleaning power in Table 4. Shown in

[Table 1] ¾ ”[] 20005

Weight) (7600

[] (0077

From the results in Table 3, the powder detergent compositions obtained in Examples 19 to 19 were all excellent in foaming and rinsing properties, and also excellent in solubility, as compared with those of Comparative Example 19. Thing It is easy to do. Also, from the results in Table 4, it can be seen that the powder detergent compositions obtained in Examples 10 to 12 are more excellent in detergency than those in Comparative Examples 10 to 12.

Industrial applicability

[0078] The detergent composition of the present invention is suitably used for washing clothes and the like.

[0079] Thus, for the invention described, it is clear that similar things can be varied in many ways. Vigorous changes are not deemed to depart from the spirit and scope of the present invention, and all such modifications apparent to those skilled in the art are intended to be included within the scope of the following claims. You.

Claims

The scope of the claims

[1] Alkyl benzene sulfonate 10-40% by weight, alkaline agent 7-40% by weight, nonionic surfactant 15% by weight or less, and foam regulator 0.07-10% by weight, A detergent composition in which the foam regulator contains a water-soluble organic polymer having an average molecular weight of more than 1,000,000.

[2] The detergent composition according to claim 1, further comprising a clay mineral content of 5% by weight or less.

3. The detergent composition according to claim 1, wherein the content of the water-soluble organic polymer having an average molecular weight of more than 1,000,000 in the foam control agent is 30% by weight or more.

4. The detergent composition according to claim 1, wherein the water-soluble organic polymer is a polyacrylate.

[5] The detergent composition according to claim 13, wherein the water-soluble organic polymer is polyethylene oxide.

6. The detergent composition according to claim 5, wherein the content of the nonionic surfactant is 3% by weight or less.

[7] The detergent composition according to claim 13, wherein the water-soluble organic polymer is polyacrylamide.

[8] A method for rinsing an object to be washed using a washing liquid containing the detergent composition according to any one of claims 17 to 17.

[9] Use of a water-soluble organic polymer having an average molecular weight of over 1,000,000 as a foam regulator.

Use as.