JP2007291270A - Detergent composition - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a detergent composition exhibiting a high detergency even with a small amount of the detergent used (low concentration). <P>SOLUTION: The detergent contains a polyoxyalkyleneamine oxide expressed by general formula (I) (wherein, R<SP>1</SP>is any one of a 8-22C straight or branched alkyl group or alkenyl group, long chain hydroxyalkyl group, toryl group, phenyl group and benzyl group; A is a 2-3C alkylene group: p and q are each a number not less than 0 representing average additional mole numbers of the alkylene oxide; p+q is not less than 5 and below 70). <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a cleaning composition.

In recent years, awareness of environmental problems such as environmental pollution has increased.
Also in the field of cleaning agents, it is necessary to consider the environment more than ever, taking into account the actual situation such as dirt on the object to be cleaned, and there is a demand for designing cleaning compositions that have a low environmental impact.

As such a detergent composition having a low environmental load, for example, by containing 9% by mass or less of a surfactant and carbonate, the content of the surfactant in the composition is reduced. A low environmental load type cleaning composition, a cleaning method, and the like have been proposed (see Patent Document 1).
In addition, as a detergent composition that exhibits a high detergency with a small amount of a surfactant, a liquid detergent composition containing a nonionic surfactant and an alkaline agent (see Patent Document 2), an anionic surfactant A liquid detergent composition (see Patent Document 3) containing a specific ratio of an agent, an alkylamine oxide, a polyoxyalkylene alkyl (or alkenyl) ether, and water has been proposed.
JP 2001-158899 A JP-A-8-231996 JP 7-53991 A

However, in the technique described in Patent Document 1, it is difficult to blend a large amount of carbonate, particularly in the case of a liquid detergent composition, and a surfactant of 9% by mass or less contained in the composition. There is a problem that the sufficient amount of detergency cannot be exhibited in the amount.
In addition, the techniques described in Patent Documents 2 to 3 require a certain amount of surfactant to obtain a good detergency, and the surfactant concentration cannot be sufficiently reduced.

  This invention is made | formed in view of the said situation, and makes it a subject to provide the cleaning composition which has high detergency even with a small amount of surfactant (low concentration).

  In order to solve the above-mentioned problems, the present invention proposes a cleaning composition containing a polyoxyalkyleneamine oxide represented by the following general formula (I).

［式中、Ｒ^１は炭素数８〜２２の直鎖もしくは分岐鎖状のアルキル基またはアルケニル基、長鎖ヒドロキシアルキル基、トリル基、フェニル基、ベンジル基のいずれかであり；Ａは炭素数２〜３のアルキレン基を示し；ｐ、ｑはそれぞれアルキレンオキサイドの平均付加モル数を示す０以上の数であり、ｐ＋ｑは５以上７０未満である。］

[Wherein, R ¹ is any ^one of a linear or branched alkyl group or alkenyl group having 8 to 22 carbon atoms, a long-chain hydroxyalkyl group, a tolyl group, a phenyl group, and a benzyl group; 2 to 3 alkylene groups are shown; p and q are each a number of 0 or more indicating the average number of added moles of alkylene oxide, and p + q is 5 or more and less than 70. ]

  According to the present invention, it is possible to provide a detergent composition having a high detergency even with a small amount of surfactant (low concentration).

  The cleaning composition of the present invention contains a polyoxyalkyleneamine oxide represented by the general formula (I).

Polyoxyalkyleneamine oxide In the polyoxyalkyleneamine oxide represented by the general formula (I), in the general formula (I), R ¹ is a linear or branched alkyl group or alkenyl having 8 to 22 carbon atoms. Group, a long-chain hydroxyalkyl group, a tolyl group, a phenyl group, or a benzyl group.
In a linear or branched alkyl group or alkenyl group having 8 to 22 carbon atoms, the alkyl group has 8 to 22 carbon atoms, preferably 14 to 20 carbon atoms, and more preferably 16 to 18 carbon atoms. . The carbon number of the alkenyl group is the same as the carbon number of the alkyl group.
When the carbon number is 8 or more, the detergency is improved, and when the carbon number is 22 or less, the solubility is improved.
In the long-chain hydroxyalkyl group, the alkyl group preferably has 8 to 20 carbon atoms, particularly preferably 10 to 18 carbon atoms. The number of hydroxy groups is preferably 1 to 3, and more preferably 1.

Among R ¹ , a linear or branched alkyl group or alkenyl group having 8 to 22 carbon atoms is particularly preferable. Specifically, alkyl groups or alkenyl groups derived from beef tallow (mixtures having 14 to 18 carbon atoms), alkyl groups or alkenyl groups derived from beef tallow (mixtures having 14 to 18 carbon atoms), oleyl groups, cetyl groups, stearyl groups And most preferably an alkyl group, an alkenyl group, a cetyl group or a stearyl group derived from beef tallow (mixture of 14 to 18 carbon atoms).

In the general formula (I), A represents an alkylene group having 2 to 3 carbon atoms.
AO represents alkylene oxide. AO is ethylene oxide (EO) or propylene oxide (PO), which may be used alone or in admixture. When the EO group and the PO group are mixed and added, the EO group and the PO group may be bonded at random. For example, as shown in JP-A-2003-505446, Blocks each having two or more PO groups bonded to each other may be linked. Among these, Preferably it consists of EO group alone.
In addition, when EO group and PO group are mixed and added, it is preferable from a soluble point that the total amount of EO group is 60 mass% or more in all the alkylene oxide groups.

p and q each represent the average number of added moles of the alkylene oxide group, and each independently represents a number of 0 or more. One of p and q may be 0.
Further, “p + q” indicating the sum of the average number of added moles of the alkylene oxide group is 5 or more and less than 70, preferably 7 or more and 50 or less, more preferably 9 or more and 30 or less. By being in this range, high detergency can be obtained. In particular, when it is at least the lower limit of the range, for example, when used as a cleaning composition for clothing, the cleaning power is improved. On the other hand, by being below the upper limit, the number of moles of polyoxyalkyleneamine oxide present in the cleaning composition becomes sufficient, and the cleaning power is improved.

As a suitable specific example of the polyoxyalkyleneamine oxide represented by the general formula (I), polyoxyethylene (20) hexadecylamine oxide (the number in the parenthesis indicates the average number of moles of EO added, In this case, the average addition mole number is 20 moles.), Polyoxyethylene (15) hexadecylamine oxide (average addition mole number of EO 15 moles), polyoxyethylene (10) hexadecylamine oxide (average addition moles of EO) Several tens moles), polyoxyethylene (20) beef tallow alkylamine oxide (average number of moles of EO added 20 moles), polyoxyethylene (50) octadecylamine oxide (average number of moles of EO added 50 moles), polyoxyethylene ( 30) Octadecylamine oxide (average added mole number of EO: 30 moles) That. Among them, polyoxyethylene (20) hexadecylamine oxide (average addition mole number of EO of 20 mol), polyoxyethylene (10) hexadecylamine oxide (average addition mole number of EO of 10 mol), polyoxyethylene (20 ) Tallow alkylamine oxide (average number of moles of EO added 20 moles) and polyoxyethylene (50) octadecylamine oxide (average number of moles of EO added 50 moles) are more preferred.
In the present invention, such polyoxyalkylene amine oxides can be used singly or in combination of two or more.
The content of the polyoxyalkylene amine oxide is preferably 2 to 90% by mass, more preferably 5 to 60% by mass, and further preferably 8 to 40% by mass in the cleaning composition. When the amount is 2% by mass or more, the detergency is improved even when the detergent composition is used in a normal amount, and when the amount is 90% by mass or less, formulation becomes easy.

Other optional components In addition to the above polyoxyalkylene amine oxide, other optional components can be blended in the cleaning composition of the present invention, if necessary.
Examples of such optional components include the following (1) to (10).

(1) Nonionic surfactants such as polyoxyalkylene alkyls or alkenyls having an average of 6 to 18 moles of ethylene oxide (EO) and / or propylene oxide (PO) added to a primary or secondary alcohol having 8 to 13 carbon atoms An ether; a polyoxyalkylene adduct of a fatty acid obtained by adding an average of 6 to 18 moles of ethylene oxide (EO) and / or propylene oxide (PO) to a fatty acid having 8 to 13 carbon atoms; or a lower alcohol ether thereof; propylene oxide and propylene glycol; Ethylene oxide added to the condensate (pluronic surfactant); ester of fatty acid having 10 to 20 carbon atoms and sucrose; fatty acid glycerin monoester having 10 to 20 carbon atoms, alkylpolyalkyl having 8 to 20 carbon atoms Glucoside and the like.
(2) Nitrogen-containing surfactants other than the above general formula (I), for example, ethylene oxide having an alkyl group or alkenyl group having 8 to 22 carbon atoms as disclosed in JP-A-2005-171195 [Product name: Esomine T / 25 (alkyl group: derived from beef tallow (mixture of C14-18), average added mole number of EO: 15 moles), product name: Esomine SA2Y-103 (alkyl group) : Average addition mole number of C18 and EO: 50 mol); as described above, manufactured by Lion Akzo], alkyl having 10 to 20 carbon atoms or alkenylamine oxide, condensate of propylene oxide and ethylenediamine Added with ethylene oxide (tetronic surfactant), polyoxyethylene fat Acid amides, such as polyhydroxy amines, such as shown in JP-A-2000-53996.
(3) Quaternary amine type cationic surfactants, for example, polyoxyethylene chloride (15) cured beef tallow alkylmethylammonium (manufactured by Lion Akzo, trade name: Esocard HT / 25) and other ethylene oxide addition type quaternary ammonium salts etc.
(4) Anionic surfactants and amphoteric surfactants.
(5) Metal chelating agent.
(6) Hydrotrope agents such as ethanol, lower alkyl aryl sulfonic acids, polyhydric alcohols such as polyethylene glycol (PEG), polyethylene (propylene) glycol alkyl ether, polyethylene (propylene) glycol phenyl ether, and the like.
(7) Alkaline agents such as monoethanolamine, diethanolamine, and triethanolamine.
(8) Enzymes such as protease, lipase and cellulase.
(9) Texture modifiers such as polyether-modified silicone and amino polyether-modified silicone.
(10) Optical brighteners, preservatives, emulsions, pigments, fragrances, pastes, pH adjusters and the like.
The above optional components can be used alone or in combination of two or more.

Among the above optional components, polyoxyalkylene amine is preferably used from the viewpoint of detergency.
At that time, the mixing ratio of the polyoxyalkyleneamine oxide and the polyoxyalkyleneamine represented by the general formula (I) is preferably 80:20 to 10:90 by mass ratio, and 70:30 to 15 : 85 is more preferable.
In addition, an aqueous solution containing the polyoxyalkyleneamine oxide and the polyoxyalkyleneamine at a high concentration (preferably 50% by mass or more) can be prepared by using these in combination.
Suitable combinations include, for example, combined use of polyoxyethylene (20) hexadecylamine oxide and polyoxyethylene (20) hexadecylamine.

The property (appearance) of the cleaning composition of the present invention is not particularly limited, and may be solid (eg, powder, solid, etc.), liquid, gel, etc. Also good. Among these, a liquid form is preferable.
In addition, the preparation method of the cleaning composition of the present invention is not particularly limited, and can be prepared according to a conventional method for a normal cleaning composition. For example, in the case of a liquid detergent composition, it is prepared by blending and mixing the polyoxyalkyleneamine oxide represented by the general formula (I), the above optional components as necessary, and water as appropriate. Can do.
Moreover, in the cleaning composition of this invention, it is preferable that the pH at 25 degreeC of a cleaning composition is 4-11 from the point of a detergency, and it is more preferable that it is pH5-10.
The pH is a value obtained by measuring an aqueous solution having a surfactant concentration of 20% by mass when the cleaning composition is solid, and a stock solution of the cleaning composition when the cleaning composition is liquid or gel.
The pH can be adjusted by appropriately using a pH adjuster (such as inorganic acids and inorganic bases such as sulfuric acid, sodium hydroxide, and potassium hydroxide).

The method of using the cleaning composition of the present invention is a normal usage method, that is, a method of pouring the cleaning composition of the present invention (the product of the present invention) into the water together with the laundry at the time of washing. And a method of directly applying the product of the present invention, a method of previously dissolving the product of the present invention in water and immersing clothes.
Also preferred is a method in which the product of the present invention is appropriately left after being applied to the laundry, and then normal washing is performed using a washing liquid other than the product of the present invention.

The cleaning composition of the present invention has a high detergency even with a small amount of surfactant (low concentration).
Here, the “small amount of surfactant (low concentration)” in the present invention means that the surfactant concentration in the washing liquid is preferably 50 to 150 ppm.
The surfactant concentration in the conventional washing liquid is 150 to 200 ppm in the case of a solid detergent composition, and 200 to 280 ppm in the case of a liquid or gel detergent composition.
Therefore, the cleaning composition of the present invention can reduce the amount of the surfactant in the cleaning composition when the usage amount of the cleaning composition is the same as the conventional amount, and the interface in the cleaning composition. When the amount of the active agent is the same as the conventional amount, it is possible to reduce the amount of the cleaning composition used.

The detergent composition of the present invention exhibits the effect of having a high detergency even with a small amount of surfactant (low concentration). The reason is not clear, but is presumed as follows.
The polyoxyalkyleneamine oxide used in the present invention has a low interfacial tension with oily components such as oleic acid and triolein contained in sebum soil, and a high amount of fatty acid solubilization at neutral pH. Have. Therefore, it is conceivable that the adsorptivity to sebum dirt attached to the article to be washed (clothing etc.) is high.
The polyoxyalkyleneamine oxide is presumed to form an ion pair by electrostatically binding with fatty acid and the like contained in sebum soil when adsorbed with sebum soil and the like. And it is thought that a cleaning power improves because the said ion pair melt | dissolves in a washing | cleaning liquid, and exhibits an effect as surfactant.
From the above, it is presumed that the cleaning composition of the present invention has a high detergency even with a small amount of surfactant (low concentration).

According to the present invention, it is possible to provide a detergent composition having a high detergency even with a small amount of surfactant (low concentration).
In addition, the cleaning composition of the present invention can exhibit sufficient cleaning power even when the amount of the surfactant in the washing liquid is less than half of the conventional amount.
The cleaning composition of the present invention can thus reduce the amount of surfactant used, and can be expected to have effects such as low environmental impact.
There is no restriction | limiting in particular as a use of the cleaning composition of this invention, For example, it can use widely for industrial use, clothing use, shoes use, various equipment uses, etc. Especially, it can use suitably as a cleaning composition especially for clothes. Preferably, it is a detergent composition that does not contain hypochlorous acid, and can also be used normally for colored clothing.
Furthermore, the cleaning composition of the present invention can be applied to, for example, a highly concentrated liquid cleaning agent or a compact liquid cleaning agent.

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

(Examples 1-15, Comparative Examples 1-7)
Table 1 shows the compound name or structural formula, the manufacturer name, and the trade name of the raw material (compound) used in the examples. Table 2 shows the composition of the liquid detergent composition and the evaluation results.
For the preparation of the liquid detergent composition, a liquid detergent composition (with the remainder being purified water) was prepared according to a conventional method using the raw materials (compounds) shown in Table 1 according to the formulation shown in Table 2.
The pH was adjusted by appropriately adding a pH adjuster (sodium hydroxide or sulfuric acid) so that the pH of the liquid detergent composition at 7.0 was 7.0.
In addition, the compounding quantity in a table | surface is the value converted into the pure part, The unit is the mass%, The water amount was adjusted so that the total amount might be 100 mass%.
Moreover, “: 1” given to the structural formula in Table 1 indicates that one unsaturated bond is present.

<< Description of ingredients shown in Table 1 >>
* 1: About Compound A As a raw material fatty acid amine, n-hexadecylamine manufactured by Tokyo Chemical Industry Co., Ltd. was used.
The synthesis reaction was synthesized in two stages using an autoclave manufactured by Pressure Glass Industrial Co., Ltd.
First, the above fatty acid amine is charged into an autoclave, the inside of the system is replaced with nitrogen, heated to 150 ° C., and ethylene oxide (EO) is added in small portions until a predetermined amount is reached. The average number of moles of ethylene oxide (EO) added Synthesized 2 moles of tertiary amine.
Next, the tertiary amine obtained in the above synthesis and an alkali catalyst (0.8% by mass using 40% by mass NaOH aqueous solution) are charged into an autoclave, the inside of the system is replaced with nitrogen, and after dehydration by heating under reduced pressure. The mixture was heated to 150 ° C., and ethylene oxide was added little by little until a predetermined amount was reached to synthesize polyoxyethylene hexadecylamine (A) having an average EO mole number of 10 mol.

* 2: Compound B Compound A obtained by the above synthesis was used as a raw material.
A 40% by mass aqueous solution of Compound A was prepared, charged into a reaction vessel equipped with a thermometer, a stirrer, a condenser tube and a dropping funnel, heated with stirring, and maintained at 70-80 ° C., 3 equivalents of 45% by mass. An aqueous hydrogen peroxide solution was dropped little by little, and aging was carried out for 3 hours or more to complete the reaction.
The synthesized product obtained by the reaction was confirmed by NMR measurement to have no unreacted amine remaining, and polyoxyethylenehexadecylamine oxide (B) having an average added mole number of EO of 10 mol was synthesized.
After the synthesis reaction, the synthesized product was heated, the amount of water was measured from the rate of change in weight due to evaporation of water, and the concentration was calculated (pure content: 28.2% by mass).

* 3: About compound C Polyoxyethylene hexadecylamine (C) with an average added mole number of EO of 20 moles was synthesized by adjusting the amount of EO added in the same manner as in the synthesis method of compound A described above. .

* 4: About compound D Using compound C obtained by the above synthesis as a raw material, by performing amine oxidation with a 45 mass% aqueous hydrogen peroxide solution in the same manner as the synthesis method of compound B described above, Polyoxyethylene hexadecylamine oxide (D) having an average addition mole number of 20 moles was synthesized.
After the synthesis reaction, the synthesized product was heated, the amount of moisture was measured from the rate of change in weight due to evaporation of moisture, and the concentration was calculated (pure content: 36.3 mass%).

* 5: About Compound E Using Esomine T / 12 (alkyl group: beef tallow, average added mole number of EO: 2 mol) manufactured by Lion Akzo as a raw material, the raw material and an alkali catalyst (40% by mass NaOH aqueous solution) 0.8% by mass) was charged into an autoclave, the inside of the system was replaced with nitrogen, dehydrated by heating and depressurization, heated to 150 ° C., and EO was added little by little until reaching a predetermined amount, and EO was averagely added. Polyoxyethylene beef tallow alkylamine (E) having a mole number of 20 mol was synthesized.

* 6: About compound F Using compound E obtained by the above synthesis as a raw material, by performing amine oxidation with a 45% by mass aqueous hydrogen peroxide solution in the same manner as the compound B synthesis method described above, Polyoxyethylene beef tallow alkylamine oxide (F) having an average addition mole number of 20 moles was synthesized.
After the synthesis reaction, the synthesized product was heated, the amount of water was measured from the rate of change in weight due to evaporation of water, and the concentration was calculated (pure content: 32.1% by mass).

* 7: About Compound G 45, using Esomine SA2Y-103 (alkyl group: C18, average added mole number of EO: 50 mol) manufactured by Lion Akzo, as a raw material, in the same manner as the compound B synthesis method described above. Polyoxyethylene octadecylamine oxide (G) having an average addition mole number of EO of 50 mol was synthesized by amine oxidation with a mass% aqueous hydrogen peroxide solution.
After the synthesis reaction, the synthesized product was heated, the amount of moisture was measured from the rate of change in weight due to evaporation of moisture, and the concentration was calculated (pure content: 34.0% by mass).

* 8: About Compound H Using Esomine T / 12 (alkyl group: beef tallow, average added mole number of EO: 2 mol) manufactured by Lion Akzo as a raw material, 45 Polyoxyethylene beef tallow alkylamine oxide (H) having an average addition mole number of EO of 2 mol was synthesized by amine oxidation with a mass% aqueous hydrogen peroxide solution.
After the synthesis reaction, the synthesized product was heated, the amount of water was measured from the rate of change in weight due to evaporation of water, and the concentration was calculated (pure content: 29.9% by mass).

* 9: Compound I Narrow ratio defined in JP-A-2001-164298 by the methods described in JP-A-1-164437, JP-A-10-7620, JP-A-2000-61304, etc. Of 55% by mass or more of polyoxyethylene (15) cetyl ether was synthesized.

* 10: Compound J Using fatty acid methyl ester as a raw material, a fatty acid methyl ethoxylate type nonionic surfactant was synthesized according to the production method described in JP-A-9-118648.

≪Evaluation of cleaning power≫
About the liquid detergent composition of each example shown in Table 2, it evaluated by the method and evaluation criteria shown below, and the result was written together in Table 2.

(Cleaning method)
10 sheets of wet artificially contaminated cloth (made by Hirano Yushi Co., Ltd.) (hereinafter sometimes referred to as “contaminated cloth”) cut to 5 cm square, and a commercially available T-shirt (100% cotton, manufactured by BVD Corporation). ) And was combined with other T-shirts so that the total amount was 1 kg, and this was used as the item to be washed.
Fully automatic washing machine “White Promise” (model NW-7PAM2 (G), manufactured by Hitachi, Ltd.), put water of 25 ° C., hardness 3 ° DH, 30 liters, and the liquid detergent composition of each example After dissolving a predetermined amount (detergent amount shown in Table 2), the above-mentioned article to be washed was added, and the standard course was started and washed for 6 minutes.
1 minute of dehydration and 3 minutes of rinsing (tap water, 25 ° C.) are performed twice. After the final dehydration for 1 minute, the washed wet artificially contaminated cloth is taken out from the article to be washed and dried. Detergency was evaluated.

(Evaluation method of cleaning power)
The reflectance of the wet artificially contaminated cloth after completing the washing operation 1 step was measured with a color difference meter (trade name: SE200 type, manufactured by Nippon Denshoku Co., Ltd.), and the washing rate (%) was calculated by the following formula. .
Washing rate (%) = (K / S of contaminated cloth before washing−K / S of washed cloth after washing) / (K / S of contaminated cloth before washing−K / S of uncontaminated cloth) × 100.
Here, K / S = (1−R / 100) ² / (2R / 100). However, R shows a reflectance (%).
Evaluation criteria determined that the cleaning power was good when the cleaning rate (%) calculated by the above formula was 65% or more. In addition, the washing | cleaning rate (%) used the average value of ten wet artificial contamination cloths.

(* 1) and (* 2) in Table 2 have the following meanings.
(* 1) indicates the dissolved amount (g) of the liquid detergent composition of each example per 30 liters of water during washing.
(* 2) indicates the surfactant concentration “ppm” in the washing liquid in the state where the liquid detergent composition of each example was dissolved in 30 liters of water.

In the evaluation of the detergency, as an evaluation control, a liquid detergent containing 40% by mass of compound L (polyoxyethylene (9) lauryl ether: alcohol ethoxylate obtained by adding 9 mol of ethylene oxide on average to dodecyl alcohol) Using the composition (Comparative Example 7), the detergency of the Comparative Example 7 was regarded as the same level as the detergency of a commercially available liquid detergent composition (commercial product), and the above detergency evaluation was performed. .
The surfactant (compound L) concentration of 200 ppm in the washing liquid of Comparative Example 7 is a normal surfactant concentration when a conventional liquid detergent composition is used. On the other hand, the surfactant concentration in Examples 1 to 15 and Comparative Examples 1 to 6 is 1/2 of the surfactant concentration.

  As is clear from the results in Table 2, Examples 1 to 15 according to the present invention have a small amount (100 ppm level) of surfactant amount (low) compared to Comparative Examples 1 to 7 that are outside the scope of the present invention. (Concentration) was confirmed to have a high cleaning power.

In the mixed system of the polyoxyethylene (20) hexadecylamine (Compound C) of Examples 6 to 8 and the polyoxyethylene (20) hexadecylamine oxide (Compound D) obtained by amine oxidation, The detergency was 80% or more at each composition ratio (mixing ratio), and it was confirmed that very high detergency was exhibited.
Further, Examples 1 to 15 according to the present invention exhibit higher detergency than Comparative Example 7 at a surfactant concentration of 1/2 (100 ppm) of the surfactant concentration (200 ppm) of Comparative Example 7. Was confirmed.

≪Liquidity evaluation≫
Compound C, Compound D and water are mixed to prepare an aqueous solution (25 ° C.) of Compound C: Compound D = 1: 1 with a total concentration of Compound C and Compound D of 50% by mass and a mixing ratio by mass ratio. did.
Subsequently, the liquid appearance of the aqueous solution was visually observed, and the liquid property was evaluated based on the following evaluation criteria.
The evaluation criteria is to check whether the aqueous solution is in the form of fluidity, whether it is `` liquid '', `` fluid but gelled '', or `` has become solid '' “Liquid” is good.

As a result of the evaluation of the liquid property, it was confirmed that the aqueous solution was “liquid” and had a good liquid property even at a high concentration of 50% by mass. It was also confirmed that the performance as a cleaning agent was maintained.

Claims (1)

A cleaning composition comprising a polyoxyalkyleneamine oxide represented by the following general formula (I):

[Wherein, R ¹ is any ^one of a linear or branched alkyl group or alkenyl group having 8 to 22 carbon atoms, a long-chain hydroxyalkyl group, a tolyl group, a phenyl group, and a benzyl group; 2 to 3 alkylene groups are shown; p and q are each a number of 0 or more indicating the average number of added moles of alkylene oxide, and p + q is 5 or more and less than 70. ]