JP2018021130A - Method and apparatus for applying vehicle coating agent - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide high-degree water repellency, gloss, and sliding property to a surface of a vehicle by more efficiently and uniformly applying a coating agent than a vehicle washing machine, while suppressing quality deterioration of the coating agent.SOLUTION: A liquid agent composed of an adsorbent composition (1) having a cationic group, and water is used as A liquid. A liquid agent composed of organopolysiloxane (2) having a straight chain siloxane structure having no cationic group, and/or trimethylsiloxysilicic acid (3), nonionic surfactant (4), and water is used as B liquid. The A liquid and the B liquid are mixed together in a pipeline and then applied to a vehicle body surface.SELECTED DRAWING: Figure 2

Description

  The present invention provides an application method and application of a vehicle coating agent that imparts high water repellency, gloss, and slipperiness to a surface composed of automobile paint, glass, rubber, plastic, and the like, thereby protecting the vehicle surface and improving aesthetics. It relates to the device.

  Conventionally, in coating performed using a car wash machine on the surface of a vehicle such as an automobile, a coating agent containing a cationic surfactant or a coating agent obtained by emulsifying an amino-modified polysiloxane with a surfactant is from tens of water. It is practiced to dilute several hundred times and apply by spray. These cationic surfactants and amino-modified polysiloxanes are adsorbing components with cationic groups, so they can be easily adsorbed on weakly anionic charged vehicle surfaces simply by spraying a coating agent dilution. However, since water repellency can be imparted by forming a film, it is frequently used for coating using a car wash machine.

  As a conventional example, Patent Document 1 discloses a coating agent used in an automatic coating method in which an amino-modified polysiloxane is emulsified with a nonionic surfactant and a specific cationic surfactant is contained. In addition, for the purpose of imparting higher water repellency, a composition containing trimethylsiloxysilicic acid is also disclosed, and amino-modified dimethylpolysiloxane and other organopolysiloxane are used in combination for manual work. In addition, a composition and a treatment method having a specific amino-modified polysiloxane as a main component have been published for those performing washing and water repellent treatment at the same time, and for car wash machines. (Patent Documents 2 and 3)

  As the above conventional examples, an emulsion in which a mixed liquid of trimethylsiloxysilicic acid and an organopolysiloxane is dispersed in water, and a cleaning water repellent for manual operation containing an amino-modified polydimethylsiloxane, an organic acid, and an alkyl glucoside are patented. Patent Document 3 discloses an emulsion composition for car polish which is disclosed in Document 2 and contains a specific amino-modified polysiloxane as a main component.

  In addition to these adsorptive and water-repellent performances, a composition containing dimethylpolysiloxane has been announced as a coating agent with gloss and slipperiness for the purpose of protecting the vehicle surface and improving aesthetics. Yes. In the above conventional example, an emulsion obtained by emulsifying amino-modified polysiloxane using a specific nonionic surfactant and an emulsion obtained by emulsifying dimethylpolysiloxane using a specific nonionic surfactant are mixed. A glossy water repellency imparting composition is disclosed in Patent Document 4.

JP-A-8-188745 JP-A-11-116898 JP 2004-339305 A Japanese Patent Laid-Open No. 2004-300387

  In the above-mentioned conventional examples, all coating agents imparted with high water repellency, gloss and slipperiness are one-component coating agents. However, a liquid agent that mixes adsorbing components having cationic groups such as cationic surfactants and amino-modified polysiloxanes with components that improve water repellency such as trimethylsiloxysilicic acid, gloss and slipperiness such as dimethylpolysiloxane, is compatible. Since it becomes an aqueous emulsion having poor solubility, there is a high possibility of causing separation, sedimentation, etc. in high-temperature and low-temperature environments and long-term storage, and it becomes difficult to maintain the stability of the coating agent. When such a destabilized coating agent is used in a car wash machine, there is a problem that it becomes difficult to uniformly apply to the vehicle surface and unevenness occurs.

  In addition, in order to stabilize the emulsion, if a large amount of an emulsion stabilizer such as various surfactants and water-soluble polymer compounds is contained, these emulsion stabilizers inhibit the adsorption of the coating agent component, resulting in high water repellency. , Gloss and slipperiness cannot be imparted.

  Therefore, in view of the above-mentioned drawbacks of the conventional technique, the present invention suppresses the deterioration of the quality of the coating agent and applies it more efficiently and uniformly than the car wash machine, thereby imparting high water repellency, gloss and slipperiness, The purpose is to provide protection and aesthetic enhancement.

  As means for solving such a problem, a liquid agent composed of an adsorption component (1) having a cationic group and water is liquid A, an organopolysiloxane (2) having a linear siloxane structure having no cationic group, and Alternatively, the liquid composition composed of trimethylsiloxysilicic acid (3), nonionic surfactant (4), and water is made into B liquid, and it becomes possible to reduce the content of the emulsion stabilizer in a small amount by dividing it into two liquids. The quality deterioration of each coating agent is suppressed, and the liquid A and liquid B are mixed in the pipeline and then applied to the surface of the vehicle body, so that the coating agent components are efficiently adsorbed on the vehicle surface and have high repellent properties. A method for imparting wateriness, gloss and slipperiness has been found.

  By the vehicle coating agent application method of the present invention, the quality deterioration of the liquid agent is suppressed, and it is applied more efficiently and uniformly than the car wash machine, thereby providing high water repellency, gloss and slipperiness, and protecting the vehicle surface. It can provide aesthetic enhancement.

It is a side view which shows the car wash machine provided with the coating device of this invention. It is explanatory drawing which shows a water supply system.

Next, the present invention will be described in more detail with reference to preferred embodiments.
Examples of the adsorbing component (1) having a cationic group used in the present invention (hereinafter abbreviated as “component (1)”) include amino-modified polysiloxanes and cationic surfactants.

  As the amino-modified polysiloxane, any amino-modified polysiloxane that has been conventionally used as a coating agent component for vehicles can be used. In addition to oily ones, those made into aqueous emulsions are marketed, and one or more of them can be selected and used in the present invention.

  Examples of the cationic surfactant include quaternary ammonium salts, alkylamine salts, and ethylene oxide adducts thereof. One or two or more of them can be selected in view of the characteristics of the present composition from among these, and these components are well known in the technical field and are obtained from the market and used in the present invention. be able to.

The organopolysiloxane (2) (hereinafter abbreviated as “component (2)”) having a linear siloxane structure having no cationic group used in the present invention is represented by the general formula R ₃ SiO (R ₂ SiO) _n SiR ₃ . Examples thereof include dimethylpolysiloxane, methylhydrogenpolysiloxane, and organically modified polysiloxane having no cationic group.

  The modified types of the above-mentioned organically modified polysiloxane having no cationic group include alkyl modification, alkylaralkyl modification, fatty acid modification, epoxy modification, carboxyl modification, polyether modification, alcohol modification, fluoroalkyl modification, methacryl modification, methyl Examples include phenyl modification and epoxy polyether modification.

Such component (2) is gloss, slip properties, characteristics of homogeneity such coatings can be appropriately selected in view of the kinematic viscosity is preferably from 1~10,000mm ² / s, among others 5～3,500Mm ² / s is preferred. In addition, the component (2) is not limited to oil-like ones, but those that have been made into aqueous emulsions are commercially available, and one or more of them can be selected and used in the present invention.

  If the kinematic viscosity of component (2) is too high, the uniformity of the coating will be poor and unevenness will tend to occur. If the kinematic viscosity is too low, the uniformity of the coating will be improved, but the gloss and slipperiness will be reduced.

The trimethylsiloxysilicate (3) (hereinafter abbreviated as “component (3)”) used in the present invention is represented by the general formula ((CH ₃ ) ₃ SiO _1/2 ) x · (SiO ₂ ) y, It is also called MQ resin because of its structure and constitutional unit. In this, water glass is used as a starting material of Q unit (SiO _4/2 ), and the end is blocked with a trimethylsilyl group (M unit (CH ₃ ) ₃ SiO _1/2 ).

  As such component (3), those dissolved in an organic solvent, organopolysiloxane or the like, or those obtained by making them into aqueous emulsion, etc. are marketed, and one or more of them are selected from the present invention. Can be used in

  Nonionic surfactant (4) (hereinafter abbreviated as “component (4)”) used in the present invention is polyoxyethylene alkyl ether, polyoxyalkylene alkyl ether, polyoxyethylene alkylphenyl ether, polyhydric alcohol fatty acid. Examples include esters, polyoxyethylene polyhydric alcohol fatty acid esters, polyoxyethylene fatty acid esters, polyglycerin fatty acid esters, and alkylamine oxides. From these, one or more kinds can be selected in view of properties such as emulsifying property and stability of the present composition, and these components (4) themselves are well known in the art. It can be obtained from the market and used in the present invention.

  It is desirable to use ion-exchanged water from which salts have been removed so that the water used in the coating agent composition of the present invention does not affect other components in the composition.

  In addition to the above essential components, the coating agent composition used in the present invention further includes a low-temperature stabilizer such as a lower alcohol, glycol ether, polyhydric alcohol, etc., as long as it does not interfere with the purpose of the present invention. Component stabilizers such as inhibitors and ultraviolet absorbers, pH adjusters, preservatives, rust preventives, colorants, fragrances and other auxiliary agents can be contained.

Examples and Comparative Examples

  Next, examples of the present invention will be described. Table 1 shows the composition of Sample A and Liquid B, and Table 2 shows the components. The unit of the numbers in Table 1 is mass%, and the mass% indicates the concentration of each component in the finally obtained composition.

(Sample A liquid)
<Sample A-1>
A cationic surfactant didecyldimethylammonium chloride was employed as the adsorbing component having a cationic group of component (1), and this was added to ion-exchanged water and mixed and stirred to give sample A-1.

<Sample A-2>
An amino-modified polysiloxane having a kinematic viscosity of 1000 mm ² / s · amino equivalent of 1800 g / mol is adopted as the adsorbing component having a cationic group as the component (1), and a polyoxyethylene alkyl of HLB 11.4 as a nonionic surfactant is used for this. Sample A-2 was obtained by adding ether, mixing and stirring both, and adding ion-exchanged water.

<Sample A-3>
Instead of the adsorbing component having a cation group of component (1), sodium polyacrylate, which is an adsorbing component having an anion group, was adopted, and this was added to ion-exchanged water and mixed and stirred to give sample A-3. .

(Sample B liquid)
<Sample B-1>
A dimethylpolysiloxane having a kinematic viscosity of 350 mm ² / s is employed for the organopolysiloxane having a linear siloxane structure having no cationic group as the component (2), and an active ingredient concentration of 16 mass is used for the trimethylsiloxysilicic acid as the component (3). % Of trimethylsiloxysilicate aqueous emulsion, HLB11.4 polyoxyethylene alkyl ether was adopted as the nonionic surfactant of component (4), and ion-exchanged water was added to those mixed and stirred. This was designated as Sample B-1.

<Sample B-2>
The dimethylpolysiloxane having a kinematic viscosity of 12500 mm ² / s is adopted as the organopolysiloxane having a linear siloxane structure having no cationic group as the component (2), and the active ingredient concentration is 16 mass in the trimethylsiloxysilicic acid as the component (3). % Of trimethylsiloxysilicate aqueous emulsion, HLB11.4 polyoxyethylene alkyl ether was adopted as the nonionic surfactant of component (4), and ion-exchanged water was added to those mixed and stirred. This was designated as Sample B-2.

<Sample B-3>
Cyclopentasiloxane having a kinematic viscosity of 4 mm ² / s having a cyclic siloxane structure was employed instead of the organopolysiloxane having a linear siloxane structure having no cationic group as component (2), and trimethylsiloxy as component (3) A trimethylsiloxysilicic acid aqueous emulsion having an active ingredient concentration of 16% by mass was adopted as silicic acid, and HLB11.4 polyoxyethylene alkyl ether was adopted as the nonionic surfactant of component (4), and these were mixed and stirred. Sample obtained by adding ion-exchanged water to Sample was designated as Sample B-3.

(apparatus)
An apparatus suitable for applying the coating agent will be described with reference to FIG.
In FIG. 1, reference numeral 1 denotes a main body frame, which is formed in a gate shape and travels reciprocally on a traveling rail 2, 2 laid on the floor surface by being driven by a traveling motor 3. The main body frame 1 is provided with a brush device, a blower nozzle, and a spray pipe as various types of car wash processing devices for performing a car wash process. As the main body frame 1 travels, water, detergent, and wax are supplied to the vehicle body from the spray pipe. A brush cleaning process is performed by brushing with a brush device while spraying, a coating agent spraying process in which a coating agent is sprayed onto the vehicle body from a spray pipe, and a drying process in which air is blown from the blower nozzle onto the vehicle body.

  The brush device includes a top brush 4 that moves up and down along the upper surface of the vehicle body and brushes the upper surface, and a pair of left and right side brushes 5 that open and close in the width direction of the vehicle body and brush the front and rear surfaces and side surfaces of the vehicle body. Yes. The blower nozzle includes a top nozzle 6 that moves up and down along the upper surface of the vehicle body and blows air on the upper surface to dry the air, and a pair of left and right side nozzles 7 that blow air on the side surface of the vehicle body and drys the air. In addition, each operation | movement of raising / lowering, opening / closing, and rotation is performed by the well-known means by the motor which can be rotated forward / reversely.

  The spray pipe includes a shampoo spray pipe 8 that selectively sprays water and shampoo on the car body, a coating spray pipe 9 that sprays water and a coating agent selectively on the car body, and water that sprays water on the car body. A spray pipe 10 is provided. Each spray pipe 8, 9, 10 is formed in an arch shape, and sprays each treatment agent on the upper surface and side surface of the vehicle body.

  FIG. 2 is a piping diagram showing the water supply system. The water supply system is supplied with water by a submersible pump 12 provided in the water storage tank 11, a pipe line 13 leading to the shampoo spray pipe 8, a pipe line 14 leading to the coating spray pipe 9, and a pipe line 15 leading to the water spray pipe 10. It has. A shampoo pipe 17 communicating with the shampoo tank 16 is connected to the pipe 13, and a fixed amount of shampoo is sucked up by a tube pump 18 provided in the shampoo pipe 17, and the shampoo is mixed into the pipe 13. Connected to the line 14 are an A liquid line 20 that communicates with the A liquid tank 19 and a B liquid line 22 that communicates with the B liquid tank 21, and are connected by a tube pump 23 provided in the A liquid line 20. While the fixed amount A liquid is sucked up, the fixed amount B liquid is sucked up by the tube pump 24 provided in the B liquid pipe line 20, and the A liquid and the B liquid are mixed into the pipe line 14. The pipes 13, 14, and 15 are controlled to be opened and closed by electromagnetic valves 25, 26, and 27, respectively.

  In the portal type car wash machine having such a configuration, the A liquid and the B liquid are stored in separate tanks 19 and 21, mixed in the pipe line 14 and sprayed by the low-pressure pump 12 immediately before application. In addition, the dilution stability by which the present applicant confirms whether the emulsified silicone or the like does not adhere to the container by leaving the mixed solution obtained by diluting the solution A and the solution B at each magnification in a 50 ° C. environment for 2 weeks. When the test was conducted, it was confirmed that no adhesion was observed in the diluted solution. For this reason, even if it mixes A liquid and B liquid in a pipe line, it will adhere to a pipe inner wall etc., and possibility that a pipe line will be blocked is low.

(test)
For the test, the surface of the vehicle body coated with the sample A liquid and the B liquid having the above composition is used, and the water repellency test, gloss test, film homogeneity test, and slip property test are performed on the vehicle surface. Each test is determined based on the following evaluation criteria.
<Test 1> Water Repellency Test Water was sprayed on the vehicle body surface to visually determine the water repellency state of the vehicle surface.
<Test 2> Gloss Test The gloss of the vehicle body surface was compared with an untreated part by visual observation.
<Test 3> Homogeneity test of coating The uniformity of the coating on the surface of the vehicle body was determined by visual comparison with the untreated portion.
<Test 4> Sliding test A 500 g weight was wrapped with a paper towel on the surface of the vehicle body, and gently placed on the inclined surface of the vehicle surface.

(Evaluation criteria)
The evaluation criteria for each test method are as follows.
<Test 1> Water repellency test (visual judgment)
○: Water droplets are nearly spherical and there are few water droplets remaining.
(Triangle | delta): A water droplet is near semicircle and a water droplet remainder is a little large.
X: Water droplets are non-uniform, and there are portions that get wet.
<Test 2> Gloss test (visual judgment)
○: A clear improvement in gloss was observed.
Δ: Some improvement in gloss was observed.
X: There is almost no difference in gloss from the untreated part.
<Test 3> Film homogeneity test (visual determination)
A: A uniform film without unevenness was obtained.
Δ: Almost uniform film with slight unevenness was obtained.
X: It is a non-uniform | heterogeneous film with many unevenness. Or it cannot be judged because there is almost no difference in gloss from the unprocessed part.
<Test 4> Sliding property test (visual judgment)
○: Slip off as soon as you release your hand.
Δ: Slowly slips down.
X: There is almost no difference from the untreated part and it does not slide so much.

(Example)
<Example 1>
Sample A-1 and Sample B-1 are mixed in the pipeline of the car washer and applied to the painted surface of the automobile by low pressure to produce a coated vehicle body surface. Tests 1 to 4 were performed on the vehicle body surface, and the coating on the vehicle surface was evaluated based on the evaluation criteria. The evaluation results are shown in Table 3.
<Example 2>
Sample A-1 and Sample B-2 are mixed in the pipeline of the car washer and applied to the painted surface of the automobile by low pressure to create a coated vehicle body surface. Tests 1 to 4 were performed on the vehicle body surface, and the coating on the vehicle surface was evaluated based on the evaluation criteria. The evaluation results are shown in Table 3.
<Example 3>
Sample A-2 and Sample B-1 are mixed in the pipeline of the car washer and applied to the painted surface of the automobile by low pressure to create a coated body surface. Tests 1 to 4 were performed on the vehicle body surface, and the coating on the vehicle surface was evaluated based on the evaluation criteria. The evaluation results are shown in Table 3.
<Example 4>
Sample A-2 and Sample B-2 are mixed in the pipeline of the car washer and applied to the painted surface of the automobile by low pressure to create a coated vehicle body surface. Tests 1 to 4 were performed on the vehicle body surface, and the coating on the vehicle surface was evaluated based on the evaluation criteria. The evaluation results are shown in Table 3.

(Comparative example)
<Comparative Example 1>
Sample A-1 and Sample B-3 are mixed in a car washer line and applied to the painted surface of the car by low pressure to create a coated car body surface. Tests 1 to 4 were performed on the vehicle body surface, and the coating on the vehicle surface was evaluated based on the evaluation criteria. The evaluation results are shown in Table 3.
<Comparative example 2>
Sample A-2 and Sample B-3 are mixed in the pipeline of the car washer and applied to the painted surface of the automobile by low pressure to produce a coated vehicle body surface. Tests 1 to 4 were performed on the vehicle body surface, and the coating on the vehicle surface was evaluated based on the evaluation criteria. The evaluation results are shown in Table 3.
<Comparative Example 3>
Sample A-3 and Sample B-1 are mixed in the pipeline of the car washer and applied to the painted surface of the automobile by low pressure to produce a coated vehicle body surface. Tests 1 to 4 were performed on the vehicle body surface, and the coating on the vehicle surface was evaluated based on the evaluation criteria. The evaluation results are shown in Table 3.
<Comparative Example 4>
Sample A-3 and Sample B-2 are mixed in the pipeline of the car washer and applied to the painted surface of the automobile by low pressure to produce a coated vehicle body surface. Tests 1 to 4 were performed on the vehicle body surface, and the coating on the vehicle surface was evaluated based on the evaluation criteria. The evaluation results are shown in Table 3.
<Comparative Example 5>
Sample A-3 and Sample B-3 are mixed in the pipeline of the car washer and applied to the painted surface of the automobile by low pressure to produce a coated vehicle body surface. Tests 1 to 4 were performed on the vehicle body surface, and the coating on the vehicle surface was evaluated based on the evaluation criteria. The evaluation results are shown in Table 3.
<Comparative Example 6>
After the sample A-1 is applied, the coated body surface is prepared by applying the sample B-1. Tests 1 to 4 were performed on the vehicle body surface, and the coating on the vehicle surface was evaluated based on the evaluation criteria. The evaluation results are shown in Table 3.

(Critique of evaluation results)
In Examples 1 and 3, high performance was confirmed with respect to “water repellency”, “gloss”, “uniformity of coating”, and “slidability”.
In Examples 2 and 4, dimethylpolysiloxane having a kinematic viscosity of 12500 mm ² / s was adopted as the organopolysiloxane having a linear siloxane structure that does not have a cation group of component (2), so compared with Examples 1 and 3. As a result, unevenness was slightly observed in the coating, and the “uniformity of the film” was evaluated as low.

In Comparative Examples 1 and 2, cyclopentasiloxane having a kinematic viscosity of 4 mm ² / s having a cyclic siloxane structure was used instead of the organopolysiloxane having a linear siloxane structure having no cationic group as component (2). Although “coating homogeneity” was good, since the coating was thin, “water repellency” and “gloss” were low evaluation results, and “sliding” was not recognized as being effective by coating.
Comparative Examples 3 to 5 employ sodium acrylate, which is an adsorbing component having an anion group, instead of the adsorbing component having a cation group of component (1), so that the adsorptivity to the vehicle surface is poor and “water repellency”. A uniform effect was not recognized for “gloss”, “coating uniformity”, and “sliding”.
In Comparative Example 6, the evaluation results were uniformly low with respect to “water repellency”, “gloss”, “coating uniformity”, and “slidability”.

From the above test results, Examples 1 to 4 are used to impart high “water repellency”, “gloss”, “coating uniformity”, and “slidability” to the vehicle body surface, and to apply uniformly without coating unevenness. In particular, it was confirmed that it is effective to use an organopolysiloxane having a kinematic viscosity in the range of 1 to 10,000 mm ² / s with a linear siloxane structure having no cationic group in the component (2).

  Therefore, liquid A composed of an adsorption component (1) having a cationic group and water, an organopolysiloxane (2) having a linear siloxane structure having no cationic group, and / or trimethylsiloxysilicic acid (3), The coating agent can be applied easily and quickly by mixing the vehicle coating agent consisting of two liquids consisting of nonionic surfactant (4) and water B, which is composed of water, in the pipeline. This makes it possible to apply a coating agent with a good finish.

  When the B liquid is applied to the surface of the vehicle body to which the A liquid has been applied, the B liquid that does not have the adsorbing group is not adsorbed to the vehicle surface and is washed away, but the A liquid and the B liquid are mixed and applied in the pipeline. As a result, the adsorbing group of the liquid A adsorbs the components of the liquid B while securing the adsorbing force to the surface of the vehicle body, so that the surface of the vehicle is "water-repellent", "gloss", "coating uniformity", "slip It is speculated that it can give "sex".

(Usage mode)
Then, the vehicle body process using this coating agent coating method will be described based on the usage mode in the car wash machine. In addition, although the car-washing machine will reciprocate across the car and the example which employ | adopted the portal type car-washing machine which performs washing | cleaning and drying sequentially with respect to a car is demonstrated, the non-brush car-washing machine which does not have a brush, and a hand-held spray It can also be used in a spray car wash machine that injects a liquid agent from a gun, and can be employed without departing from the present invention.

  When a car is stopped at a predetermined stop position, a car wash course is selected, and a start input is made, the car wash starts. In the car washing course in which the coating agent is applied, the car washing process is executed while the main body frame 1 makes 2.5 round trips of the automobile, and the shampoo washing process is performed in the first outgoing of the main body frame 1, the first return, the second outgoing, The coating process is sequentially executed in the second return, and the drying process is sequentially executed in the third outward. The car wash course is not particularly limited.

  Among these, in a coating process, a coating agent is spread | dispersed from the coating agent dispersion | distribution pipe 9, the top brush 4 and the side brush 5 are rotated, and a vehicle body surface is coated. The coating agent is applied to the surface of the vehicle body by mixing the liquid A having an adsorbing component and the liquid B having a water repellent / glossy component in the conduit 14 immediately before spraying. As a result, it is possible to solve the problem that the two liquids having poor compatibility are stored in separate tanks and the adsorbability on the vehicle body surface is lowered by containing a large amount of the emulsion stabilizer. In addition, since it is not necessary to apply the B liquid in the subsequent one path after applying the A liquid in the first path of the main body frame 1, the coating agent can be applied a plurality of times in a limited car washing process. Car body surface can be coated with reduced time. Furthermore, because the adsorption component of the liquid A can be adsorbed on the vehicle surface and the adsorption of the liquid B, the coating pressure of the coating agent can be lowered and can be introduced into a car wash machine without high-pressure equipment. , Provide highly versatile products while keeping costs down.

1 Body frame 8 Shampoo spray pipe 9 Coating spray pipe 10 Water spray pipe 12 Pump 16 Shampoo tank 19 A liquid tank 21 B liquid tank

Claims (2)

Liquid A composed of an adsorbing component (1) having a cationic group and water, an organopolysiloxane (2) having a linear siloxane structure having no cationic group, and / or trimethylsiloxysilicic acid (3), nonionic A vehicle coating agent coating method comprising: mixing a vehicle coating agent composed of two liquids of a liquid B composed of a surfactant (4) and water, and mixing the mixture in a pipe and applying the mixture to a vehicle body surface.
The A liquid and the B liquid according to claim 1 are stored in separate tanks, and a predetermined amount is taken out from the tank, mixed and mixed in the same pipe, and then a coating agent is applied toward the vehicle body surface. A vehicle coating agent coating apparatus provided.

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