JP2008001770A - Cleaning composition and cleaning method - Google Patents

Abstract

The present invention provides a cleaning composition and a cleaning method that have a high detergency and excellent anti-transfer effect.
The present invention relates to a detergent composition comprising a polymer compound (A) containing a structural unit derived from a monomer having a vinylpyridine moiety and an alkanolamine (B), and a nonionic surfactant. The total content of the agent (C) and the non-soap anionic surfactant (D) is 5 to 30% by mass, and the mixing ratio (D) / (C) is 0.8 or less by mass ratio. It is a cleaning composition characterized by being.
[Selection figure] None

Description

  The present invention relates to a cleaning composition and a cleaning method.

For example, in washing clothes, there is a problem that color transfer (transfer) occurs from colored clothes to other clothes.
This problem of dye transfer is becoming more apparent in household laundry, with the recent widespread use of drum-type washing machines, and in commercial laundry where drum-type washing machines and continuous washing machines are generally used. It has become a big problem.

Conventionally, as a detergent composition for suppressing the dye transfer, for example, a dye transfer inhibiting composition containing a polyamine N-oxide-containing polymer containing a specific structural unit and a builder has been proposed (see Patent Document 1). ).
In addition, a dye transfer inhibitor composition containing a dye transfer inhibitor such as a polyamine N-oxide polymer and oleoyl sarcosinate has been proposed (see Patent Document 2).
In addition, a migration inhibitor such as polyvinylpyrrolidone, a copolymer of N-vinylpyrrolidone and N-vinylimidazole, and R ¹ —O— (CH ₂ CH ₂ O) _m —CH ₂ —CH (OH) —CH _2- O—R ² [R ¹ is an alkyl group or alkenyl group having 8 to 20 carbon atoms, R ² is an alkyl group having 1 to 5 carbon chain lengths, m represents the average number of moles of ethylene oxide added, The number is 3-12. ] And / or the detergent composition containing specific polyoxyethylene polyoxypropylene alkyl ether is proposed (refer patent document 3).
Japanese National Patent Publication No. 8-512332 Japanese National Patent Publication No. 10-501278 JP 2006-8951 A

By the way, the drum type washing machine uses less water than the case of using a spiral washing machine and the like, and the bath ratio (mass ratio between the washing object and the washing liquid) becomes small. In the case of a drum-type washing machine, the “laundry liquid / object to be washed” in the ratio of the washing liquid to the article to be washed is, for example, 5-6.
By such a low bath ratio, it is presumed that the dye concentration in the washing liquid of the dye detached from the colored clothing increases, or the rubbing between cloths such as clothing increases. For this reason, it is considered that the problem of dye transfer has become apparent with the spread of drum-type washing machines.
Here, the “laundry liquid” means a solution in which a large amount of water poured into a washing machine and a cleaning composition or an aqueous solution of the cleaning composition are mixed.

The cleaning compositions described in Patent Documents 1 and 2 are transferred in an environment with a high bath ratio (“washing liquid / object to be washed” is, for example, 30) when a spiral washing machine or the like is used. Although the effect of preventing dyeing is high, the effect of preventing dye transfer is not sufficient in an environment with a low bath ratio when a drum type washing machine is used.
Moreover, the cleaning composition described in Patent Document 3 is not yet sufficient in terms of both the cleaning power and the dye transfer prevention effect.

  This invention is made | formed in view of the said situation, and makes it a subject to provide the cleaning composition and the washing | cleaning method which were high in detergency and were excellent also in the dye transfer prevention effect.

As a result of intensive studies, the present inventors provide the following means in order to solve the above problems.
That is, the cleaning composition of the present invention is a cleaning composition containing a polymer compound (A) containing a structural unit derived from a monomer having a vinylpyridine moiety and an alkanolamine (B). The total content of the ionic surfactant (C) and the non-soap anionic surfactant (D) is 5 to 30% by mass, and the mixing ratio (D) / (C) is 0.00. It is 8 or less.
Moreover, in the cleaning composition of this invention, it is preferable that pH of 2000 ppm aqueous solution is 8-13.

  The cleaning method of the present invention is characterized in that the cleaning composition of the present invention is dissolved in water, an aqueous solution of the cleaning composition is prepared in advance, and the aqueous solution is used for cleaning.

  According to the present invention, it is possible to provide a cleaning composition and a cleaning method that have high detergency and are excellent in the effect of preventing dye transfer.

≪Cleaning agent composition≫
The cleaning composition of the present invention comprises a polymer compound (A) containing a structural unit derived from a monomer having a vinylpyridine moiety (hereinafter also referred to as component (A)), and an alkanolamine (B). (Hereinafter also referred to as component (B)), a nonionic surfactant (C) (hereinafter also referred to as component (C)) and a non-soap anion interface The total content and mixing ratio of the active agent (D) (hereinafter sometimes referred to as the component (D)) are specified.

<(A) component>
In the present invention, the component (A) is a polymer compound containing a structural unit derived from a monomer having a vinylpyridine moiety. By containing the component (A), a dye transfer preventing effect can be obtained.

  Here, the “vinyl pyridine moiety” indicates a structure represented by the following general formula (I).

“A structural unit derived from a monomer having a vinylpyridine moiety” means a structural unit (hereinafter referred to as a structural unit (VP)) formed by cleavage of an ethylenic double bond of a monomer having a vinylpyridine moiety. It may mean.)
Examples of the monomer having a vinylpyridine moiety include vinylpyridine and derivatives thereof. Especially, as a suitable monomer, the monomer (vinyl pyridine N-oxide) represented by the following general formula (II) can be illustrated.

［式中、Ｒは水素原子または炭素数１〜２のアルキル基を示し；ＤはＯ⁻、ＯＨまたはＣＨ_２ＣＯＯＭ（Ｍは水素原子、アルカリ金属原子またはアルカリ土類金属原子）を示す。］

[Wherein, R represents a hydrogen atom or an alkyl group having 1 to 2 carbon atoms; D represents O ⁻ , OH or CH ₂ COOM (M represents a hydrogen atom, an alkali metal atom or an alkaline earth metal atom). ]

In the general formula (I), R represents a hydrogen atom or an alkyl group having 1 to 2 carbon atoms, and is preferably a hydrogen atom.
D represents O ⁻ , OH or CH ₂ COOM (M is a hydrogen atom, an alkali metal atom or an alkaline earth metal atom). Among these, O ⁻ is preferable because the dye transfer prevention effect is good.
Among the monomers (vinylpyridine N-oxide) represented by the general formula (I), 4-vinylpyridine-N-oxide is particularly preferable.

The structural unit (VP) can be used alone or in combination.
The content of the structural unit (VP) is preferably 50 mol% or more, more preferably 80 mol% or more, and 100 mol% with respect to all the structural units constituting the component (A). Also good. Most preferably, it is 100 mol%. By being more than the lower limit of the range, the effect of preventing dye transfer is further improved.
In addition, (A) component may have structural units other than the said structural unit (VP) as needed.

In the present invention, the component (A) is a polymer compound (polymer) having a structural unit (VP), and a water-soluble polymer compound (polymer) is particularly preferable.
Such a polymer is more preferably a polymer composed of a structural unit (VP), more preferably a polymer compound (monopolymer) composed of vinylpyridine N-oxide, because the effect of preventing dye transfer is further improved. (4-Vinylpyridine-N-oxide) is particularly preferred.
Examples of commercially available products suitably used as poly (4-vinylpyridine-N-oxide) include Chromabond S-400 (trade name, manufactured by INTERNATIONAL SPECIALITY PRODUCTS INC.) And Chromabond S-403 (trade name, INTERNATIONAL SPECIALITY PRODUCTS INC.). Manufactured) and the like.

The component (A) can be obtained by polymerizing monomers that provide each structural unit by a known polymerization method.
(A) It is preferable that the weight average molecular weights of a component are 1000-100000, It is more preferable that it is 9000-70000, It is further more preferable that it is 15000-50000. By being in this range, it becomes easy to obtain a good dye transfer preventing effect.
In the present invention (including examples and the like), the “weight average molecular weight” is H.264. G. Bath and J.C. W. The values measured by the light scattering method described in Maze, Chemical Analysis, Vol. 113, “Contemporary Methods for Polymer Characterization” are shown.

In this invention, (A) component can be used 1 type or in mixture of 2 or more types.
(A) It is preferable that it is 0.01-20 mass% in content of the cleaning composition of this invention, and, as for content of a component, it is more preferable that it is 0.1-10 mass%. By being above the lower limit of the range, the effect of preventing dye transfer is improved. On the other hand, by being below the upper limit value, it is possible to balance with other components. Further, the effect of preventing dye transfer is sufficiently obtained, which is economically advantageous.

<(B) component>
In the present invention, the component (B) is an alkanolamine. By containing the component (B), the detergency is improved. In addition, the combined use with the component (A) improves the dye transfer prevention effect, and the dye transfer prevention effect is further improved particularly in an environment with a low bath ratio when a drum type washing machine is used.
In addition, for example, the storage stability of the aqueous solution of the cleaning composition of the present invention (preferably, a 1 to 20% by mass aqueous solution of the cleaning composition) (effect of suppressing coloring, precipitation, etc.) is improved. Thereby, the cleaning method which prepares the aqueous solution of a cleaning composition beforehand and uses this aqueous solution for washing | cleaning can be performed.
Moreover, pH of cleaning composition (laundry liquid) can be adjusted by containing (B) component. Further, when an acid type surfactant or chelating agent is used as an optional component, these components can be neutralized.

Examples of the alkanolamine include monoethanolamine, diethanolamine, triethanolamine, monoisopropanolamine, diisopropanolamine, and triisopropanolamine. Monoethanolamine, diethanolamine, and triethanolamine are preferable, and monoethanolamine and diethanolamine are more preferable. preferable.
In this invention, (B) component can be used 1 type or in mixture of 2 or more types.
The content of the component (B) is preferably 0.1 to 30% by mass, and more preferably 0.5 to 20% by mass in the cleaning composition of the present invention. By being above the lower limit of the range, the cleaning power and the effect of preventing migration are improved. On the other hand, by being below the upper limit value, it is possible to balance with other components. Moreover, damage to fibers such as clothing is suppressed.
Moreover, when content of (B) component is this range, pH (preferably pH 8-13 range) of a washing | cleaning liquid can be adjusted easily. Further, as described above, the effect as a neutralizing agent can be easily obtained.

<(C) component>
In the present invention, the component (C) is a nonionic surfactant. By containing the component (C), the detergency is improved. Further, by specifying the total content and mixing ratio with the component (D), the detergency and the effect of preventing transfer are further improved. The reason for this is considered that the cleaning composition has low foaming properties.

Examples of nonionic surfactants include alcohol alkoxylates, fatty acid alkanolamides, and alkyl polyglucosides. Of these, alcohol alkoxylates are preferable, and alcohol ethoxypropoxylates are more preferable.
In this invention, (C) component can be used 1 type or in mixture of 2 or more types.

<(D) component>
In the present invention, the component (D) is a non-soap anionic surfactant. By containing the component (D), the detergency is improved. Further, by specifying the total content and mixing ratio with the component (C), the detergency and the effect of preventing migration are further improved.
Examples of the anionic surfactant include linear or branched alkylbenzene sulfonate, olefin sulfonate, alkyl sulfate, polyoxyethylene alkyl sulfate, α-sulfo fatty acid ester salt, secondary alkane sulfonate, and the like. Is mentioned. Of these, linear alkylbenzene sulfonate and alkyl sulfate are preferable.
Examples of the salt include alkali metal salts such as sodium salt and potassium salt; alkaline earth metal salts such as magnesium salt; alkanolamine salts such as monoethanolamine, diethanolamine and triethanolamine, and alkali metal salts are preferable. Sodium salt is more preferred.
In addition, when (D) component manufactures cleaning composition, the acid precursor (for example, linear or branched alkylbenzenesulfonic acid, olefinsulfonic acid, etc.) of the anionic surfactant illustrated above is used. The acid precursor used may be obtained by neutralization with potassium hydroxide, sodium hydroxide, potassium carbonate, sodium carbonate or the like.
In this invention, (D) component can be used 1 type or in mixture of 2 or more types.
In the present invention, the component (D) may not be contained in the cleaning composition.

In this invention, content of the sum total of (C) component and (D) component is 5-30 mass% in a cleaning composition, and it is preferable that it is 5-21 mass%. When the content is 5% by mass or more, excellent detergency can be obtained. On the other hand, when it is 30% by mass or less, excessive foaming is suppressed and a reduction in cleaning power is avoided. In addition, the effect of preventing dye transfer is also improved.
The mixing ratio (D) / (C) of the component (C) and the component (D) is 0.8 or less in mass ratio, preferably 0.3 or less, and the mass ratio is 0. (That is, (D) component is not contained). By being below the upper limit, foaming is suppressed and a reduction in cleaning power can be avoided. In addition, the effect of preventing dye transfer is also improved.

-Arbitrary component In the cleaning composition of the present invention, optional components such as a detergent component usually used in a cleaning composition for clothing are appropriately added as necessary in addition to the components (A) to (D). Can be blended.
Specifically, for example, surfactants other than the component (C) and the component (D), recontamination preventing agents, enzymes, inorganic salts, sequestering and dispersing agents, antifoaming agents, fluorescent whitening agents, Hydrotrope agent, bleach component, bleach activation component, pH adjuster (however, excluding the component (B)) and the like.

As the surfactant, surfactants (soaps, cationic surfactants, amphoteric surfactants, etc.) usually used for cleaning compositions can be used in combination.
Examples of the cationic surfactant include various quaternary ammonium salts such as a monoalkyl type quaternary ammonium salt and a dialkyl type quaternary ammonium salt.
Examples of amphoteric surfactants include carboxybetaine, sulfobetaine, hydroxysulfobetaine, and phosphobetaine.

Examples of the recontamination preventive agent include polyethylene glycol, carboxymethyl cellulose (CMC), polyalkyl terephthalate / polyoxyalkyl terephthalate polymer or derivatives thereof.
Examples of the enzyme include protease, amylase, lipase, cellulase and the like.
Examples of inorganic salts include sodium sulfate, layered sodium silicate, sodium metasilicate, sodium orthosilicate, sodium carbonate, anhydrous silicic acid and the like.

  Examples of the sequestering and dispersing agent include citric acid; 1-hydroxyethane-1,1-diphosphonic acid, nitrilotrimethylenephosphonic acid, ethylenediaminetetrakismethylenephosphonic acid, ethylenediaminetetraacetic acid, 1,3-propane-2-diamine. Tetraacetic acid, aspartic acid diacetic acid, glutamic acid diacetic acid, β-alanine diacetic acid, serine diacetic acid, carboxymethyloxysuccinic acid, carboxymethoxymalonic acid, oxydisuccinic acid, hydroxyoxydisuccinic acid, iminodisuccinic acid, polyaspartic acid, polyglyoxylic acid , Polyacrylic acid, polymer polycarboxylic acid or a salt thereof.

Examples of the antifoaming agent include silicone.
Examples of the optical brightener include bis (sulfostyryl) biphenyl salts and bis (triazinylaminostilbene) disulfonic acid derivatives.
As the hydrotrope agent, monohydric alcohols such as ethanol, isopropanol and phenyl polyoxyethylene alcohol; polyhydric alcohols such as ethylene glycol, propylene glycol, polyethylene glycol and glycerin can be used.

Examples of the bleaching component include peroxides such as hydrogen peroxide, sodium persulfate, sodium percarbonate, and sodium perborate, and these can be used alone or in combination of two or more.
Further, as the bleach activating component, for example, an organic peracid precursor such as tetraacetylethylenediamine, alkanoyloxybenzenecarboxylate, alkanoyloxybenzenesulfonate, etc. can be used in combination.

  Furthermore, as a pH adjuster, it is possible to use inorganic acids such as hydrochloric acid, sulfuric acid and phosphoric acid; organic acids such as p-toluenesulfonic acid, citric acid and phosphonic acid derivatives; sodium hydroxide, potassium hydroxide and ammonia. it can.

There is no restriction | limiting in particular as a property (appearance) of the cleaning composition of this invention, For example, a granular form may be sufficient and a liquid form may be sufficient.
The manufacturing method of the cleaning composition of the present invention is not particularly limited, and can be manufactured according to a conventional method.
Moreover, in the cleaning composition of this invention, it is preferable that pH of 2000 ppm aqueous solution is 8-13, and it is more preferable that pH is 9-12. When the pH is 8 or more, preferably 9 or more, both the detergency and the effect of preventing migration are improved. On the other hand, when the pH is 13 or less, preferably 12 or less, fiber damage such as clothing is suppressed.
Here, the “2000 ppm aqueous solution” corresponds to a washing liquid having a cleaning composition concentration of 2000 ppm. For example, a washing liquid is assumed when a drum-type washing machine is used and washing is performed according to a setting condition of a medium water level (amount of water in the washing tub 50 L / tap water).
When using the cleaning composition of the present invention, the pH can be controlled by preparing an aqueous solution in which the content of the cleaning composition is adjusted in advance and using the aqueous solution for cleaning.

The cleaning composition of the present invention has a high detergency and exhibits an excellent effect of preventing dye transfer. The reason is not clear, but is presumed as follows.
(A) component used in this invention is a component which exhibits the dye transfer prevention effect. Although the component (A) exhibits a good anti-transfer effect in a high bath ratio environment such as a swirl type washing machine, the component (A) has an anti-transfer effect in a low bath ratio environment of a drum type washing machine. It becomes difficult to be demonstrated. As described above, this is presumably because the dye concentration in the washing liquid increases or the rubbing between cloths such as clothing increases.
On the other hand, in this invention, (B) component is contained with (A) component. By containing such component (B), it is considered that the repulsive force acting between the dye molecule and the fiber is increased.
In the present invention, the total content and mixing ratio of component (C) and component (D) are specified. This is considered to improve the dispersibility of the dye molecules in the washing liquid. Therefore, it is considered that the dye molecules are easily adsorbed on the fiber and easily dispersed in the washing liquid.
In addition, by specifying the total content and the mixing ratio of the component (C) and the component (D), the cleaning composition of the present invention is suppressed in foaming and has low foaming properties.
For the above reasons, it is speculated that the cleaning composition of the present invention has a high detergency and exhibits an excellent effect of preventing dye transfer.

≪Cleaning method≫
The cleaning method of the present invention is a method in which the cleaning composition of the present invention is dissolved in water, an aqueous solution of the cleaning composition is prepared in advance, and the aqueous solution is used for cleaning. By this cleaning method, it is possible to easily prepare a laundry liquid having an appropriate concentration of the detergent composition (preferably a concentration at which the pH of the laundry liquid is 8 to 13). Thereby, both the high detergency and the excellent effect of preventing dye transfer can be easily obtained.

In the cleaning method of the present invention, the concentration of the cleaning composition in the aqueous solution is preferably 1 to 20% by mass, and more preferably 5 to 10% by mass. By setting it to be equal to or more than the lower limit of the range, it is easy to obtain a washing liquid having a desired pH, and both the cleaning power and the effect of preventing transfer are improved. On the other hand, by setting it to the upper limit value or less, the storage stability of the aqueous solution of the cleaning composition is improved, and the uniformity of the aqueous solution is easily maintained.
Moreover, as a suitable method of the cleaning method of the present invention, as an example, an aqueous solution of the cleaning composition prepared as described above is used, and the concentration of the cleaning composition in the washing liquid is a predetermined concentration (preferably 500). There is a method in which washing is performed by putting it in a washing machine tub together with water so that it is ˜3000 ppm, more preferably 1000 to 2,000 ppm.

According to the present invention, it is possible to provide a cleaning composition and a cleaning method that have high detergency and are excellent in the effect of preventing dye transfer.
The cleaning composition and the cleaning method of the present invention are particularly suitable for clothing.
In addition, the cleaning composition and the cleaning method of the present invention are particularly effective in washing with a low bath ratio, and are preferably used for, for example, a drum-type washing machine used for business or household purposes in the linen supply field. Can do.
According to the cleaning composition of the present invention, since the aqueous solution of the cleaning composition can be stored stably, a large amount can be prepared at once. In addition, it is not necessary to prepare an aqueous solution of the cleaning composition every time it is washed, and it can be automatically charged by a pump and is excellent in workability, so it is particularly suitable for business use in the linen supply field. is there.

  Hereinafter, the present invention will be described in more detail with reference to examples, but the present invention is not limited to these examples. “%” Means “% by mass” unless otherwise specified.

(Examples 1-8, Comparative Examples 1-5)
Cleaning compositions having the compositions shown in Tables 1 and 2 were produced according to a conventional method.
In addition, the unit of the compounding quantity in a table | surface is the mass%, and shows the amount equivalent to a pure part. Moreover, each composition was obtained by adjusting the compounding quantity of water or sodium sulfate suitably so that a total amount might be 100 mass%. Below, the component shown in the table | surface is demonstrated.

<< Description of components shown in the table >>.
-Component (A) Polyvinylpyridine-N-oxide: Trade name "Chromabond S-400", manufactured by ISP, weight average molecular weight 24,000 to 34000.
-(B) component Diethanolamine: brand name "diethanolamine 80" (made by Nippon Shokubai Co., Ltd.).
Monoethanolamine: Trade name “Monoethanolamine” (manufactured by Nippon Shokubai Co., Ltd.).
Component (C) Nonionic surfactant (I): alcohol alkoxylate, linear alkyl group having 12 to 14 carbon atoms, average addition mole number of ethylene oxide (EO) of 15 moles, average of propylene oxide (PO) 3 moles added.
Nonionic surfactant (II): alcohol alkoxylate, linear alkyl group having 12 to 14 carbon atoms, average addition mole number of EO of 6 moles, and average addition mole number of PO of 2 moles.
Nonionic surfactant (III): Alcohol alkoxylate, linear alkyl group having 12 to 14 carbon atoms, average addition mole number of EO of 15 moles.
-(D) component LAS-Na: linear alkyl (carbon number 10-14) benzenesulfonic acid sodium salt [linear alkyl (carbon number 10-14) benzenesulfonic acid (acid precursor, brand name "Lypon LH-200 “Lion-H, pure LAS-H contained 96% by mass”] was obtained by neutralizing with a 48% by mass aqueous sodium hydroxide solution during the production of the cleaning composition. The compounding quantity in a table | surface shows the mass% as a LAS-Na pure part.
AS-Na: Alkyl sulfate sodium salt having an alkyl group having 10 to 18 carbon atoms (trade name “Sandet LMN”, manufactured by Sanyo Chemical Industries, Ltd.).
AES: alkyl sulfate ethoxylate having an alkyl group having 12 to 15 carbon atoms.
-Optional component Ethanol: Trade name "Synthetic 95 degree undenatured ethanol" (manufactured by NEDO).
Citric acid: Trade name “Citric anhydride” (made by Iwata Chemical, food additive grade).
Sodium carbonate: trade name “grain ash”, manufactured by Asahi Glass Co., Ltd.
Sodium sulfate: Trade name “Neutral anhydrous sodium sulfate”, manufactured by Nippon Chemical Industry Co., Ltd.
Water: Purified water.

≪Evaluation≫
About the obtained cleaning composition of each example, it evaluated by the method and evaluation criteria shown below, and the result was written together in Table 1.

[Detergency]
(Cleaning method)
10 contamination cloths for evaluation (trade name: EMPA101, manufactured by EMPA; 5 cm × 5 cm / sheet) are sewn on one white cotton cloth, and the charge cloth (evaluation contamination cloth is adjusted so that the total amount becomes 10 kg). This was used as an article to be washed together with 20 sheets of general household sheets that were not sewn.
For washing, an actual machine of a batch washer (product name “ECONOMAT-10”, manufactured by Asahi Seisakusho Co., Ltd.) is used. The batch washer is set to a medium water level (about 50 L), and tap water (Tokyo) Was used.
Next, the cleaning composition of each example was dissolved in water, a 5% by mass aqueous solution of the cleaning composition was prepared in advance, and 2 L of the aqueous solution was charged into the tank, and then the above-described cleaning object was charged, Washing was performed at a medium water level (tap water of about 50 L of water) at a bath ratio of 5 times.
In that case, the density | concentration of the cleaning composition was 2000 ppm (0.1 mass% with respect to the mass of a to-be-washed object) in a washing | cleaning liquid.
The cleaning was performed by the following cleaning process and rinsing process.
Washing process: Washing temperature 50 ° C. for 10 minutes.
Rinsing process: After washing process → Drain → High speed centrifugation for 3 minutes → Rinse (medium water level) 30 ℃ ・ 5 minutes → Drain → High speed centrifugation for 3 minutes → Rinse (medium water level) 30 ℃ for 5 minutes → Drain → High speed Dehydration by centrifugation for 3 minutes.
After the cleaning, the contaminated fabric for evaluation after the cleaning was taken out of the article to be washed and dried, and the cleaning power was evaluated by the following evaluation method.

(Evaluation method of cleaning power)
The reflectance of the evaluation contaminated cloth after the washing treatment was measured with a color difference meter (trade name: SE2000 type, manufactured by Nippon Denshoku Co., Ltd.), and the washing rate (%) was calculated by the following formula. Detergency was evaluated based on the evaluation criteria.
The “clean cloth” in the formula represents a white cloth before the evaluation contaminated cloth (EMPA 101) was produced, and 84 was used as a reflectance value in the calculation of the cleaning rate.
Cleaning rate (%) = [(Reflectance of contaminated cloth for evaluation after cleaning) − (Reflectance of contaminated cloth for evaluation before cleaning)] / [(Reflectance of cleaning cloth) − (Contamination for evaluation before cleaning) Cloth reflectance)] × 100
<Evaluation criteria>
A: The cleaning rate is 16% or more.
○: The cleaning rate is 13% or more and less than 16%.
Δ: The cleaning rate is 10% or more and less than 13%.
X: The cleaning rate is less than 10%.
As the evaluation criteria, if the cleaning rate (%) calculated by the above formula was 10% or more (Δ to ◎), it was determined that the cleaning power was good. For the cleaning rate (%), the average value of 10 evaluation cloths was used.

[Dye transfer prevention effect]
(Evaluation method of anti-transfer effect)
In the above-described washing treatment method, the transfer prevention effect is evaluated by using “Sumifix Supra Blue BRR” (trade name, manufactured by Sumitomo Kasei) as a coexisting dye, and the coexisting dye is 50 ppm in the washing liquid. A method similar to the above-described cleaning method was used except that it was further added to the tank.
In the evaluation of the cleaning power, using the evaluation contaminated cloth after the cleaning treatment as a sample, the E value (degree of discoloration) is measured by a color difference meter (trade name: SE2000 type, manufactured by Nippon Denshoku Co., Ltd.) ΔE was calculated by the following formula, and the dye transfer prevention effect was evaluated based on the following evaluation criteria. In addition, it represents that it is excellent in the dye transfer prevention effect, so that (DELTA) E value is small.
ΔE = [(L value before washing−L value after washing) ² + (a value before washing−a value after washing) ² + (b value before washing−b value after washing) ² ] ^{1 / 2}
<Evaluation criteria>
A: ΔE is 2 or less.
○: ΔE is greater than 2 and 4 or less.
Δ: ΔE is greater than 4 and 6 or less.
X: ΔE is larger than 6.
As the evaluation criteria, if ΔE calculated by the above formula was 6 or less (Δ to ◎), it was determined that the dye transfer prevention effect was good. For ΔE, the average value of 10 evaluation soiled cloths was used.

  From the results in Table 1, it was confirmed that Examples 1 to 8 according to the present invention have high detergency and are excellent in the effect of preventing migration. In particular, Examples 1, 2, and 5 were confirmed to be particularly excellent in both cleaning power and dye transfer prevention effect.

On the other hand, it was confirmed that Comparative Example 1 containing no component (A) has a poor dye transfer prevention effect.
Moreover, it was confirmed that Comparative Example 5 in which (C) + (D) was less than 5% by mass had poor cleaning power.
In addition, it was confirmed that Comparative Example 2 containing no component (B) was poor in cleaning power and dye transfer prevention effect.
In addition, it was confirmed that Comparative Examples 3 and 4 in which (D) / (C) is larger than 0.8 have poor cleaning power and anti-transfer effect.

Claims (3)

In the cleaning composition containing the polymer compound (A) containing a structural unit derived from a monomer having a vinylpyridine moiety, and an alkanolamine (B),
The total content of the nonionic surfactant (C) and the non-soap anionic surfactant (D) is 5 to 30% by mass, and the mixing ratio (D) / (C) is 0 by mass ratio. A detergent composition characterized by being 8 or less.   The cleaning composition according to claim 1, wherein the pH of the 2000 ppm aqueous solution is 8 to 13. A cleaning method comprising dissolving the cleaning composition according to claim 1 or 2 in water, preparing an aqueous solution of the cleaning composition in advance, and using the aqueous solution for cleaning.