Detergent composition for vehicle

Abstract

To provide a vehicle detergent composition that has good foaming property, foam quality and foam retention during washing, and at the same time has good foam rinsing property during rinsing.SOLUTION: A vehicle detergent composition comprises (A) an amino acid surfactant, (B) an amine oxide amphoteric surfactant, (C) a fatty acid alkanolamide, and (D) a polyoxyethylene alkylamine. The composition satisfies the following net weight ratios: (A) / (B) is 0.5-3.5; [(A)+(B)] / (C) is 3.0-10.0; and (C) / (D) is 0.7-30.0.SELECTED DRAWING: None

Description

[Technical field]

[0001] The present invention relates to a vehicle detergent composition used for cleaning vehicle surfaces, which has good detergency, foaming properties, foam quality during cleaning, and foam retention, and also has good foam-rinsing properties when rinsed off. [Background technology]

[0002] Contaminants that adhere to the painted surface of a vehicle or the like include dirt such as dust in the air, soot, oil particles, insect carcasses, dirt, water stains, mineral oil, synthetic oil, etc. In order to wash away these contaminants that have adhered to the surface, the surface of the vehicle is washed frequently. In addition to washing, a cleaning agent composition that can clean and simultaneously impart water repellency to the painted surface of a vehicle with one liquid has been attracting attention.

[0003] When washing vehicles, detergents (shampoos) containing cleaning ingredients such as surfactants are used to remove oily contaminants and to prevent damage to the paint surface caused by fine particles such as sand and dust, or dead insects. In addition to sufficient cleaning properties, the detergents are required to have foaming properties, foam quality, foam retention, and no foam loss, and to not damage the paint surface.

[0004] If the foaming ability and foam quality are insufficient, fine particles such as dust present on the vehicle surface may be dragged by cleaning tools such as sponges, resulting in the formation of numerous fine scratches on the vehicle's painted surface. In addition, if the foam retention is insufficient, the agent must be foamed up each time it is used for cleaning, which can be troublesome. In addition, if the foam does not rinse off easily, it may take a long time to rinse off, or there may be concerns that the foam may be left unrinsed, which may have a negative effect on the painted surface. Therefore, there is a strong demand for a vehicle cleaning agent that has both foaming ability, foam quality, foam retention, and foam retention.

[0005] Various studies have been conducted to solve this problem, and Patent Document 1 proposes a vehicle cleaner that has good foaming and foam retention by adding higher alcohol and / or higher fatty acid to a surfactant. However, while the foaming and foam retention are improved, there are cases where the foam does not completely disappear when rinsing. In addition, Patent Document 2 proposes combining a low-foaming surfactant with alcohol to make it easier to rinse off, but the low-foaming property and the use of alcohol may cause concerns about the impact on the coating surface and the environmental load.

[0006] On the other hand, as a method of imparting water repellency during cleaning, for example, Patent Document 3 describes adding a water repellent component such as silicone to a vehicle cleaner composition to impart water repellency. However, since silicone generally has foam suppressing properties in addition to water repellency (Non-Patent Document 1), adding silicone may deteriorate foaming properties and foam retention. For this reason, there is room for further improvement in vehicle cleaning compositions.

[0007] In addition, the natural and organic product market continues to grow worldwide, and there is growing global interest in natural and organic products, so ingredients used for cleaning are preferred that are of natural origin. In particular, since most vehicle cleaning agent compositions are used outdoors, they are often discharged directly into the environment without passing through sewerage systems, etc., and there is a strong demand for products that are biodegradable and have a low environmental impact. [Prior art documents] [Patent documents]

[0008] [Patent Document 1] Patent Publication No. 2012-57048 [Patent Document 2] Patent Publication No. 2018-30926 [Patent Document 3] Patent Publication No. 2004-123875 [Non-patent literature]

[0009] [Non-Patent Document 1] Hirotaka Miura, Surface Chemistry and Antifoaming Properties of Silicones, Oil Chemistry, Vol. 42, No. 10, 762-767 (1993) Summary of the Invention [Problem to be solved by the invention]

[0010] To provide a detergent composition for vehicles which has good detergency, foaming property, foam quality during washing, and foam retention, and at the same time has good foam removal during rinsing. [Means for solving the problem]

[0011] Means for Solving the Problems The present inventors conducted intensive research to solve the above problems, and as a result discovered that by blending an amino acid surfactant, an amine oxide amphoteric surfactant, a fatty acid alkanolamide, and a polyoxyethylene alkylamine in a specific ratio, a detergent composition can be obtained which has good detergency, foaming ability, foam quality, and foam retention, as well as good foam-breaking properties, and which has been able to achieve the present invention.

[0012] That is, the present invention is as follows. (1) (A) Amino acid surfactant (B) Amine oxide type amphoteric surfactant (C) Fatty acid alkanolamide (D) Polyoxyethylene alkylamine The weight ratio of each component is (A) / (B) is 0.5 to 3.5 [(A)+(B)] / (C) is 3.0~10.0 (C) / (D) is 0.7 to 30.0 A vehicle cleaning composition comprising: (2) The pure weight ratio of each component is (A) / (B) is 1.0~2.0 [(A)+(B)] / (C) is 5.0~10.0 (C) / (D) is 1.0 to 5.0 The vehicle cleaning composition according to (1) above, which satisfies all of the above requirements. (3) A vehicle detergent composition according to (1) or (2), which has a foam-breaking property evaluation result of less than 8 times when the content of pure surfactant is 0.1 wt%. (4) Further, the water-repellent component contains (E) a silicone-based material, and the pure weight ratio of the silicone-based material is: (E) / (B) is 5.0 or less, The vehicle detergent composition according to any one of (1) to (3), which has a foam height of 8 cm or more in a foaming power evaluation when the pure surfactant content is 0.1 wt %. Effect of the Invention

[0013] According to the present invention, by blending (A) an amino acid type surfactant, (B) an amine oxide type amphoteric surfactant, (C) a fatty acid alkanolamide, and (D) a polyoxyethylene alkylamine in a specific ratio, it is possible to provide a vehicle detergent composition which has good detergency, foaming ability, foam quality, and foam retention, and at the same time has good foam-rinsing properties. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0014] The present invention will be described in more detail with reference to the following specific examples, but the present invention is not limited to these descriptions in any way.

[0015] Hereinafter, an embodiment of the present invention will be described. Examples of the amino acid surfactant (A) of the present invention include lauroyl methyl-β-alanine salt (commercially available products include Alanon (registered trademark) ALE and ALTA manufactured by Kawaken Fine Chemical Co., Ltd.), coconut oil fatty acid methyl alanine salt (Alanon ACE manufactured by Kawaken Fine Chemical Co., Ltd.), myristoyl methyl-β-alanine salt (Alanon AME manufactured by Kawaken Fine Chemical Co., Ltd.), acyl hydroxyethyl-β-alanine salt, and lauroyl sarcosine salt (Soypon ( Examples of such fatty acids include coconut oil fatty acid sarcosine salt (registered trademark SLE, SLTA, SLP), coconut oil fatty acid sarcosine salt (SOYPON SCE manufactured by Kawaken Fine Chemical Co., Ltd.), myristoyl sarcosine salt (SOYPON M-30 manufactured by Kawaken Fine Chemical Co., Ltd.), lauroyl-β-alanine salt, coconut oil fatty acid-β-alanine salt, lauroyl glutamate, coconut oil fatty acid glutamate, lauroyl aspartate, coconut oil fatty acid aspartate, lauroyl methyl taurate, and coconut oil fatty acid methyl taurate. In particular, sodium lauroyl sarcosine (a commercially available product is Soypon SLE manufactured by Kawaken Fine Chemicals Co., Ltd.) is widely distributed and easy to obtain, and is preferred from the viewpoint of improving the cleaning power and foam quality when blended into the vehicle detergent composition of the present patent. In addition, it is generally made from raw materials derived from natural fats and oils, has good biodegradability, and is more preferred because it places less burden on the environment. These amino acid type surfactants may be used alone or in combination of two or more.

[0016] Examples of the amine oxide type amphoteric surfactant (B) of the present invention include lauric acid amidopropyldimethylamine oxide (a commercially available product is Softazoline (registered trademark) LAO-C manufactured by Kawaken Fine Chemical Co., Ltd.), cocamidopropylamine oxide, wheat germ oil fatty acid amidopropylamine oxide, soyamidopropylamine oxide, myristamidopropylamine oxide, milk fat fatty acid amidopropylamine oxide, oleamine oxide, cocoamine oxide, dihydroxyethyl cocamine oxide, dihydroxyethyl lauramine oxide, stearamine oxide, decylamine oxide, decyltetradecylamine oxide, behenamine oxide, myristamine oxide, and lauramine oxide. In terms of improving the cleaning power, foaming power, and foam retention in the formulation of the vehicle detergent composition of the present invention, amidoamine oxide type amphoteric surfactants are particularly preferred. Examples of amidoamine oxide type amphoteric surfactants include lauric acid amidopropyl dimethylamine oxide, cocamidopropylamine oxide, wheat germ oil fatty acid amidopropylamine oxide, soy amidopropylamine oxide, myristamidopropylamine oxide, and milk fat fatty acid amidopropylamine oxide. In particular, lauric acid amidopropyl dimethylamine oxide is preferred because it is widely distributed and easily available, and because it improves the cleaning power and foaming power in the formulation of the vehicle detergent composition of the present invention. In addition, it is generally more preferred because it is made from raw materials derived from natural fats and oils, has good biodegradability, and has a small environmental impact. These amine oxide type amphoteric surfactants may be used alone or in combination of two or more kinds.

[0017] Examples of the fatty acid alkanolamide (C) of the present invention include lauric acid diethanolamide (commercially available products include Amizole (registered trademark) LDE-G manufactured by Kawaken Fine Chemical Co., Ltd.), lauric myristic acid diethanolamide (Amizole LMDE manufactured by Kawaken Fine Chemical Co., Ltd.), stearic acid diethanolamide (Amizole SDE, SDHE manufactured by Kawaken Fine Chemical Co., Ltd.), oleic acid diethanolamide (Amizole ODE, ODHE manufactured by Kawaken Fine Chemical Co., Ltd.), coconut oil fatty acid diethanolamide (Amizole CDE-G, FDE manufactured by Kawaken Fine Chemical Co., Ltd.), palm kernel oil fatty acid diethanolamide (Amizole KD-1, KD-3 manufactured by Kawaken Fine Chemical Co., Ltd.), modi Examples of such fatty acids include fatty coconut oil diethanolamide (Amizole CDC manufactured by Kawaken Fine Chemical Co., Ltd.), coconut oil fatty acid monoethanolamide (Amizole CME manufactured by Kawaken Fine Chemical Co., Ltd.), stearic acid monoethanolamide (Amizole SME manufactured by Kawaken Fine Chemical Co., Ltd.), lauric acid monoisopropanolamide (Amizole PLME-A manufactured by Kawaken Fine Chemical Co., Ltd.), lauric acid N-methylethanolamide, and coconut oil fatty acid N-methylmonoethanolamide. These fatty acids are widely distributed and easily available, and are preferred from the viewpoints of foaming power, foam quality, foam retention, and foam cutting improvement in the formulation of the vehicle detergent composition of the present patent. In addition, these fatty acids are generally more preferred because they are made from raw materials derived from natural fats and oils, have good biodegradability, and have a small environmental impact.

[0018] Examples of the (D) polyoxyethylene alkylamine of the present invention include polyoxyethylene stearylamine, polyoxyethylene oleylamine, polyoxyethylene laurylamine, polyoxyethylene coconut oil alkylamine, etc., and the average number of moles of ethylene oxide added is preferably 2 to 15. More preferably, the average number of moles of ethylene oxide added is 2. In particular, polyoxyethylene coconut oil alkylamine (Viscofine (registered trademark) E2C manufactured by Kawaken Fine Chemicals Co., Ltd.) is preferred, as it is widely distributed and easily available, and from the viewpoint of improving foaming power, foam quality, foam retention, and foam cutting when formulated into the vehicle detergent composition of the present patent. In addition, it is generally made from raw materials derived from natural fats and oils, has good biodegradability, and is more preferred because it places less of a burden on the environment.

[0019] From the viewpoint of the effects of improving foaming power, foam quality, foam retention, and foam breaking down when incorporated into the vehicle detergent composition of the present patent, it is preferable to use (C) fatty acid alkanolamide and (D) polyoxyethylene alkylamine in combination.

[0020] ratio In the present invention, the net weight ratios of (A) the amino acid surfactant, (B) the amine oxide amphoteric surfactant, (C) the fatty acid alkanolamide, and (D) the polyoxyethylene alkylamine are as follows: (A) / (B) is 0.5 to 3.5 [(A)+(B)] / (C) is 3.0~10.0 (C) / (D) is 0.7 to 30.0 From the viewpoint of achieving a balance between cleaning power, foaming power, foam quality, foam retention and foam cutting properties, it is preferable that the above-mentioned More preferably, (A) / (B) is 1.0~2.0 [(A)+(B)] / (C) is 5.0~10.0 (C) / (D) is 1.0 to 5.0 It is.

[0021] When the net weight ratio of (A) the amino acid type surfactant to (B) the amine oxide type amphoteric surfactant is less than 0.5, the cleaning power and foam quality may decrease. When it exceeds 3.5, the cleaning power may decrease. When the total weight ratio of the amine oxide type amphoteric surfactant (B) and the amino acid type surfactant (A) to the fatty acid alkanolamide (C) is less than 3.0, foaming properties and foam cutting may deteriorate. When it exceeds 10.0, foam quality may deteriorate. When the ratio of (C) fatty acid alkanolamide to (D) polyoxyethylene alkylamine is less than 0.7, foam quality and foam retention may decrease, whereas when it exceeds 30.0, foam breaking may decrease.

[0022] Water repellent ingredient A water-repellent component can be blended into the vehicle detergent composition of the present invention in order to impart water repellency after cleaning. Common water-repellent components include natural waxes, synthetic waxes, silicone-based materials, etc., but (E) silicone-based materials are suitable for blending into the vehicle detergent composition of the present invention because they have excellent water-repellency imparting ability and stability when blended into the vehicle detergent composition of the present invention.

[0023] (E) As the silicone-based material, conventionally known materials and formulations can be used without any problems, such as silicone resin, dimethyl silicone, amino-modified silicone, carboxyl-modified silicone, alcohol-modified silicone, silanol-modified silicone, phenyl-modified silicone, polyether-modified silicone, etc.

[0024] (E) Silicone-based material can be blended within the range that does not impair the efficacy and effect provided by the present application and does not adversely affect the coating surface, but from the viewpoint of foaming ability and foam retention, the net weight ratio of the silicone-based material is preferably 5.0 wt times or less relative to (B) amine oxide type amphoteric surfactant. If it exceeds 5.0 wt times, the foaming ability and foam retention may decrease.

[0025] concentration Generally, vehicle detergents are manufactured, stored, and sold in a concentrated state, and when used by consumers, they are diluted with water to a recommended dilution ratio and used to wash vehicles. The vehicle detergent composition of the present invention can also be manufactured, stored, and sold in a concentrated state. It can also be manufactured, stored, and sold in a diluted state.

[0026] The surfactant pure concentration during use of the vehicle detergent composition of the present invention is preferably 0.01 wt% to 30 wt%. If it is less than 0.01 wt%, the cleaning power, foaming ability, foam quality, and foam retention may decrease. If it exceeds 30 wt%, there is no problem with the cleaning power, but handling may deteriorate due to the generation of gel, etc. From the viewpoint of foaming ability and foam retention, a concentration of about 0.1 wt% is optimal, and the recommended dilution ratio of the concentrated solution may be determined so as to achieve such an optimal concentration.

[0027] The surfactant pure concentration of the vehicle detergent composition of the present invention when concentrated may be determined taking into consideration the liquid stability, manufacturing suitability, and transportation costs, but is preferably 30 wt% or less. If it exceeds 30 wt%, production may become difficult or handling may become poor due to the generation of gels, etc.

[0028] pH The vehicle detergent composition of the present invention has a pH (25° C.) during use of 5 to 12, preferably 6 to 11. It is more preferable that the pH during use is 6 to 9, which is close to neutral. If the pH is above 13 or below 5, there is concern that the vehicle may be affected by alkaline or acid corrosion, such as loss of gloss or pitting. Also, if the pH is below 5, it may result in a decrease in cleaning performance. The pH can be adjusted using a pH adjuster, such as citric acid, malic acid, lactic acid, tartaric acid, glycolic acid, glucuronic acid, caustic potash, or caustic soda.

[0029] Other Ingredients The vehicle detergent composition of the present invention may contain components used in ordinary vehicle detergent compositions and hard surface detergents within the range of not impairing the efficacy and effect provided by the present application and not adversely affecting the painted surface. Examples of such components include, but are not limited to, sequestering agents, abrasives, preservatives, water-soluble solvents, ultraviolet screening agents, alkali agents, builders, thickeners, antifreeze agents, colorants, fragrances, and disinfectants. EXAMPLES

[0030] The effects of the present invention will be described in more detail with reference to the following examples, but the present invention is not limited to these examples. In the following description, the mixing ratio in the recipe is the weight (pure) ratio unless otherwise specified. In the examples, unless otherwise specified, the components used were special grade or first grade reagents purchased from Fujifilm Wako Pure Chemical Industries, Ltd. The vehicle detergent composition of the present invention in the following Examples and Comparative Examples was evaluated as follows.

[0031] The vehicle detergent compositions shown in Tables 1 to 3 were prepared according to the following production procedure. (Manufacturing Procedure) The surfactants and other components were mixed according to a known method so that the weight ratio (pure content) was as shown in Tables 1 to 3, and citric acid diluted to 0.1 M with purified water was added to adjust the pH to 7. Thereafter, the mixture was diluted with ion-exchanged water so that the pure surfactant content was 0.1 wt %, to obtain vehicle detergent compositions of Examples 1 to 14 and Comparative Examples 1 to 24. The vehicle detergent compositions obtained were evaluated as follows, and the results are shown in Tables 1 to 3.

[0032] evaluation (Cleaning power evaluation) The cleaning power against insect stains and water stains was evaluated.

[0033] (Cleaning test for insect stains) Preparation of insect stain evaluation samples In a mortar, 1 g of red worms was diluted 10 wt fold with purified water, and the red worms were crushed using a pestle to make a uniform solution. 0.3 mL of the crushed red worm solution was taken using tuberculin, and uniformly applied (15 mm x 30 mm) to a clean automobile paint film (25 mm x 70 mm, manufactured by Nippon Test Panel), placed in a 50°C dryer and dried for 90 minutes. After drying, the sample was left to cool for 30 minutes to be used for evaluation.

[0034] Cleaning test for insect stains 500 mL of the vehicle detergent compositions of Examples 1 to 14 and Comparative Examples 1 to 24 shown in Tables 1 to 3 were placed in a washbowl and foamed using a sponge. The foam obtained was attached to a sample for evaluation and left for 30 seconds, after which the sponge was placed against the paint film and lightly moved back and forth five times. After rinsing, the sample was visually observed and the cleaning power against insect stains was scored based on the following evaluation criteria. The evaluation was carried out by 10 expert panelists and the results were averaged to give a ranking. The rankings were ◎: 4, ○: 3 to less than 4, △: 2 to less than 3, and ×: 1 to less than 2. The results are shown in Tables 1 to 3. 4: No visible insect stains 3: Very slight insect stains remain 2: Insect stains remain in some areas 1: More than half of the insect stains remain

[0035] (Water stain cleaning test) Preparation of samples for evaluating limescale stains 0.1 mL of commercially available mineral water (hardness 30 mg / L) was dropped onto the center of a clean automotive paint film (25 mm x 70 mm, manufactured by Nippon Test Panel), and then evenly applied (15 mm x 30 mm) with a cotton swab and dried on a hot plate at 140°C. This operation was repeated three times to obtain a sample for evaluating water stains.

[0036] Limescale cleaning test The lathering and cleaning were carried out in the same manner as in the cleaning test for insect stains described above. After cleaning, the water droplets were blown off using a nitrogen gun and the sample was dried. The gloss of the sample for evaluating water stains after cleaning was measured using a handy gloss meter (PG-IIM manufactured by NIPPON DENSHOKU) and recorded as gloss (C). The gloss of the sample before the stains were measured in the same manner, and the gloss of the sample before cleaning was taken as gloss (A). The cleaning rate (%) was calculated using formula (1), and the cleaning power against limescale stains was evaluated according to the following evaluation criteria. (BC) / (BA)×100 Equation (1) Each test was carried out 10 times, and the average value was used as the final evaluation, which is shown in Tables 1 to 3. ◎: 60.0% or more ○: 55.0% or more but less than 60.0% △: 50.0% or more but less than 55.0% ×: Less than 50.0%

[0037] (Foaming power evaluation) 10 mL of each of the vehicle detergent compositions of Examples 1 to 14 and Comparative Examples 1 to 24 shown in Tables 1 to 3 was placed in a 50 mL stoppered graduated cylinder, shaken 120 times for 30 seconds, and then allowed to stand. The height of the foam after 5 seconds of standing was measured, and the foaming power was evaluated based on the following evaluation criteria. Each test was performed 10 times, and the average value was used as the final evaluation, which is shown in Tables 1 to 3. ◎:10.0cm or more ○: 8.0cm or more, less than 10.0cm △: 6.0cm or more, less than 8.0cm ×: Less than 6.0cm

[0038] (Foam quality evaluation) 10 mL of each of the vehicle detergent compositions of Examples 1 to 14 and Comparative Examples 1 to 24 shown in Tables 1 to 3 was placed in a 50 mL stoppered graduated cylinder, shaken 120 times for 30 seconds, and then allowed to stand. The state of the foam after being allowed to stand for 5 seconds was visually observed and scored based on the following evaluation criteria. The evaluation was carried out by 10 expert panelists, and the results were ranked based on the average score. The rankings were as follows: ◎: 4, ○: 3 to less than 4, △: 2 to less than 3, ×: 1 to less than 2. The results are shown in Tables 1 to 3. 4: Fine and glossy foam 3: Shiny but slightly large bubbles 2: Shiny but large bubbles 1: Dull and sparse foam

[0039] (Evaluation of foam retention) 10 mL of each of the vehicle detergent compositions of Examples 1 to 14 and Comparative Examples 1 to 24 shown in Tables 1 to 3 was placed in a 50 mL stoppered graduated cylinder, shaken 120 times for 30 seconds, and then allowed to stand. After being allowed to stand for 30 minutes, the foam quality was visually observed, and the foam retention was scored based on the following evaluation criteria. The evaluation was carried out by 10 expert panelists, and the results were ranked based on the average score. The rankings were as follows: ◎: 4, ○: 3 to less than 4, △: 2 to less than 3, ×: 1 to less than 2. The results are shown in Tables 1 to 3. 4: Fine and glossy foam 3: Shiny but slightly large bubbles 2: Shiny but large bubbles 1: Dull and sparse foam

[0040] (Evaluation of foam-breaking ability) 20 mL of the vehicle detergent compositions of Examples 1 to 14 and Comparative Examples 1 to 24 shown in Tables 1 to 3 were placed in a 200 mL separatory funnel, shaken 120 times in 30 seconds, and left to stand for 1 minute. After standing, the cock of the separatory funnel was opened for 3 minutes to discharge the liquid and foam in the funnel. Then, 100 mL of tap water was placed in the separatory funnel, and the funnel was gently shaken so that the tap water contacted the entire inner wall of the separatory funnel. Then, the cock of the separatory funnel was opened for 1 minute to discharge the liquid and foam in the funnel. The injection and discharge of tap water was counted as one time, and the number of times was counted until the foam in the separatory funnel disappeared by visual inspection. The test was carried out by 10 expert panelists, and the foam-breaking property was evaluated based on the average value based on the following evaluation criteria. The results are shown in Tables 1 to 3. ◎: Less than 7 times ○: 7 or more times, less than 8 times △: 8 or more times, less than 10 times ×: 10 or more times

[0041] Examples 1 to 14 [Table 1]

[0042] Comparative Examples 1 to 12 [Table 2]

[0043] Comparative Examples 13 to 24 [Table 3]

[0044] *1: Soypon SLE (Kawaken Fine Chemicals Co., Ltd.), *2: Softazoline LAO-C (Kawaken Fine Chemicals Co., Ltd.), *3: Amizol CDE-G (Kawaken Fine Chemicals Co., Ltd.), *4: Amizol CME (Kawaken Fine Chemicals Co., Ltd.), *5: Viscofine E2C (Kawaken Fine Chemicals Co., Ltd.), *6: DOWSIL SM 8904 COSMETIC EMULSION (Dow Toray Co., Ltd.)

[0045] Evaluation Results Examples 1 to 14, which were prepared within the scope of the vehicle detergent composition of the present invention, were all evaluated as ◯ or higher, and it was confirmed that the vehicle detergent composition had good detergency, foaming ability, and foam retention, as well as good foam-breaking properties. On the other hand, when the blending ratio of (A) amino acid type surfactant to (B) amine oxide type amphoteric surfactant was outside the range, the cleaning power was rated as △ or lower (Comparative Examples 3, 5, 8, 11, 19). When the ratio of (A) amino acid type surfactant and (B) amine oxide type amphoteric surfactant to (C) fatty acid alkanolamide was outside the range, any of foaming power, foam quality, foam retention, and foam cutting was rated as △ or lower (Comparative Examples 2, 3, 5, 9, 10, 12-14, 16, 20). When the ratio of (C) fatty acid alkanolamide to (D) polyoxyethylene alkylamine was outside the range, the foam cutting or foam retention was rated as △ or lower (Comparative Examples 1-9, 12-18, 21). In Comparative Examples 22 to 24 in which higher fatty acids or higher alcohols were added, the foaming power, foam quality, and foam retention were good, but the foam cutting performance was rated as △ or lower. [Industrial Applicability]

[0046] The vehicle detergent composition of the present invention has good detergency, foaming properties and foam retention, and at the same time, has good foam-rinsing properties, so it can be used as a detergent for a wide range of hard surfaces, not limited to vehicles such as automobiles, bicycles, and railway cars.

Claims

1. (A) Amino acid surfactant (B) Amine oxide type amphoteric surfactant (C) Fatty acid alkanolamide (D) Polyoxyethylene alkylamine The pure weight ratio of each component is (A) / (B) is 0.5 to 3.5 [(A) + (B)] / (C) is 3.0 to 10.0 (C) / (D) is 0.7 to 30.0 A vehicle cleaning composition that satisfies all of the above.

2. The pure weight ratio of each component is (A) / (B) is 1.0 to 2.0 [(A) + (B)] / (C) is 5.0 to 10.0 (C) / (D) is 1.0 to 5.0 2. The vehicle detergent composition according to claim 1, which satisfies all of the above.

3. 2. The vehicle detergent composition according to claim 1, wherein the number of times in a foam-removal test when the content of pure surfactant is 0.1 wt % is less than 8.

4. Further, (E) a silicone-based material is contained as a water-repellent component, and the pure weight ratio thereof is (E) / (B) is 5.0 or less, 4. The vehicle detergent composition according to claim 1, which has a foam height of 8 cm or more in a foaming power evaluation when the amount of pure surfactant is 0.1 wt %.