JPH11217586A - Detergent for vehicle, cleaning of vehicle and apparatus for cleaning vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a detergent for a vehicle, capable of cleanly removing fur without providing an undesirable effect on a coated surface, and renewing the beautiful coated surface, and further to provide a method and apparatus for cleaning the vehicle. SOLUTION: This detergent is obtained by mixing an alkali detergent with an acidic neutralizer or a drying-inhibitor. The alkali detergent is caustic soda, caustic potassium, sodium carbonate, sodium metasilicate, sodium orthosilicate, sodium sesquicarbonate or the like, and the acidic neutralizer is an inorganic acid, an organic acid or an aminocarboxylic acid. The inorganic acid is phosphoric acid or nitric acid. The organic acid is citric acid, oxalic acid or malic acid, and the aminocarboxylic acid is nitrilotriacetic acid, ethylenediaminetetraacetate(EDTA) or the like. The drying-inhibitor is ethylene glycol(EG), polyethylene glycol(PEG), propylene glycol(PG), dipropylene glycol(DPG), glycerol, diglycerol, polyglycerol or the like.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cleaning agent, a cleaning method and a cleaning apparatus for cleaning a surface of a painted portion of a vehicle such as a vehicle.

[0002]

2. Description of the Related Art Dirt which cannot be removed with a general cleaning agent adheres to a painted surface of a vehicle, and the appearance is impaired. A typical example is so-called scale. This scale can be produced as follows. Air pollutants such as smoke and soot discharged from a diesel engine or a factory, or hand grit adhere to the wax. These contaminants are dissolved in the wax,
The wax itself is made dirty. This is the scale.

[0003] In order to remove such scale, an alkaline cleaning agent containing an alkali builder or a cleaner containing an abrasive is used. The alkali builder is sodium hydroxide, potassium hydroxide, sodium carbonate, sodium metasilicate, sodium sorbosilicate, sodium sesquicarbonate and the like.

[0004]

However, although this alkali builder or this alkaline detergent has an excellent ability to wash scale, it gradually invades the painted surface of a vehicle, discoloring the painted surface, Or to alter the quality. Active alkali component Na2O is released as an impurity in the alkali builder or the alkaline cleaning agent, and the active alkali component Na2O deteriorates the painted surface. The active alkali component Na2O is an alkali component that has been activated to have a high function or reactivity.

[0005] When the alkaline detergent adheres to the surface of the coating, the moisture of the detergent evaporates and the alkali builder is concentrated. Then, the adverse effect of the active alkali component Na2O further increases.

Further, in the cleaner containing the above-mentioned abrasive, the painted surface is gradually polished, and the painted resin becomes thin. In addition, cleaning using a cleaner containing an abrasive had to be performed manually or using the force of a rotating brush, and required physical work by force.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a vehicle cleaner and a vehicle cleaner capable of regenerating a beautiful painted surface without adversely affecting the painted surface. A method and a cleaning device are provided.

[0008]

In order to achieve the above object, the present invention provides a cleaning agent and an active alkali component Na which is free as an impurity in the alkali component of the cleaning agent.
An acidic neutralizing agent that neutralizes 2O was mixed with water. Thereby, the activity of the active alkali component Na2O can be prevented, the defect of the alkali component (alkali builder) can be suppressed, and only the original cleaning power of the detergent containing the alkali component can be efficiently extracted.

In the present invention, the cleaning agent and a water-soluble anti-drying agent for preventing the alkali component in the cleaning agent from drying on the vehicle surface when the surface of the vehicle is cleaned with the cleaning agent are added to water. Mixed. As a result, it is possible to prevent evaporation of the water content of the detergent, prevent concentration of the alkali component (alkali builder), and prevent the adverse effect of the active alkali component Na2O from increasing.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION Cleaning agent The cleaning agent is composed of an alkali cleaning agent (alkali component), an acid neutralizing agent, and an anti-drying agent. This alkaline cleaning agent (alkali component) includes caustic soda, caustic potash, sodium carbonate, sodium metasilicate, sodium solsosilicate,
Such as sodium sesquicarbonate.

The term "alkaline cleaning agent" means a cleaning agent containing an alkali component, and is not limited to an alkaline cleaning agent as a whole. The alkaline cleaning agent is a mixture of an alkaline component and a surfactant or water. The alkali component also includes an alkali builder. Alkaline builders are alkaline aids that significantly enhance detergency and are one of the alkaline components.

The acidic neutralizing agent is an inorganic acid, an organic acid or an aminocarboxylic acid, such as phosphoric acid or nitric acid, and the organic acid is citric acid, succinic acid or malic acid; The amino carboxylic acid is nitrilotriacetic acid, ethylenediamine / tetraacetate (EDT
A) Tetraacetic acid and the like. This acidic neutralizing agent neutralizes the active alkali component Na2O released as an impurity in the alkaline cleaning agent, and eliminates its activating effect. Aminocarboxylic acid has a higher adsorptive power and is more effective than other acids.

The above anti-drying agents include ethylene glycol (EG), polyethylene glycol (PEG), propylene glycol (PG), dipropylene glycol (D
PG), glycerin, diglycerin, polyglycerin and the like. This anti-drying agent has water retention (water retention),
When the coated surface is washed with the above alkaline cleaning agent, the anti-drying agent prevents the evaporation and drying of water on the coated surface of the alkaline cleaning agent, maintains a damp state, and concentrates the alkaline cleaning agent. Is prevented. Glycerin is stable on painted surfaces and is most suitable as an anti-drying agent.

[0014] The alkaline cleaning agent, the acid neutralizing agent and the anti-drying agent are mixed (mixed) with water to obtain the above-mentioned cleaning agent. Excluding water, the component ratio of this detergent is 20 to 99.8 parts by weight of an alkaline detergent and 0.1 to 7 parts by weight of an acidic neutralizer.
0 parts by weight and 0.1 to 70 parts by weight of the anti-drying agent.

When the drying inhibitor is not mixed, 50 to 99.9 parts by weight of the alkali detergent and 0.1 to 0.1 parts by weight of the acidic neutralizing agent are used.
When the acid neutralizing agent is not mixed, the alkaline detergent is 50 to 99.9 parts by weight, and the drying inhibitor is 0.1 to 50 parts by weight.
It is 1 to 50 parts by weight. The amount of the acidic neutralizing agent is determined by the amount of the active alkali component Na2O in the mixed alkaline detergent. The amount of the active alkali component Na2O can be determined by chemical analysis of the above alkaline cleaning agent.

The alkaline cleaning agent, the acid neutralizing agent and the anti-drying agent are mixed (mixed) with water. In this mixing, the alkaline detergent is mixed such that it precipitates or becomes cloudy, and the respective solvents become uniform without being uneven. This mixed state is a dissolved state, a dispersed state or an emulsified state in water. A surfactant, an abrasive, a petroleum-based hydrocarbon, and the like may be mixed with the cleaning agent as necessary.

FIG. 1 shows an experimental result of cleaning with this cleaning agent. It is effective even when only an acidic neutralizing agent is mixed with an alkali cleaning agent, and when only a drying inhibitor is mixed with an alkali cleaning agent. When both the acid neutralizing agent and the anti-drying agent are mixed with the alkaline cleaning agent, there is a great effect. After cleaning with the cleaning agent, the cleaning agent is washed away with water.

2. Examples of Vehicle Cleaning Agent Examples of the cleaning agent are described below. The values indicated are parts by weight or% by weight.

[0019] FIG. 2 shows an experimental result of cleaning with the cleaning agent obtained in the above-described example. It is effective even when only an acidic neutralizing agent is mixed with an alkali cleaning agent, and when only a drying inhibitor is mixed with an alkali cleaning agent. When both the acid neutralizing agent and the anti-drying agent are mixed with the alkaline cleaning agent, there is a great effect.

In particular, when a car is washed semi-automatically or manually as described later, the time from application and washing of an alkaline detergent to washing with water varies, and varies greatly depending on the behavior of the worker. Then, the alkali cleaner applied to the vehicle dries, and the active alkali component damages the coating of the vehicle. On the other hand, such a situation can be prevented by mixing the above-mentioned acid neutralizing agent or anti-drying agent, and it is particularly effective when a car is washed semi-automatically or manually.

3. Car Washing Device 25 FIG. 3 shows a perspective view of the inside of the car washing device 25. This car wash device 25 has a car wash machine main body 2 formed in a gate shape. This car wash machine main body 2 straddles the upper part of the vehicle 1 so as to cover it. Moreover, a pair of rails 3 is laid under both sides of the car wash body 2. In addition, a motor 26 for conveyance is installed in the car washer body 2. By the power of this motor, the car washer body 2 is reciprocated on the rail 3. The vehicle 1 is stopped between the pair of rails 3, and the car washer body 2 is moved in the front-rear direction of the vehicle 1.

Note that limit switches SW1 and SW2 are attached to the front and rear lower ends of the car washer body 2. The limit switches SW1 and SW2 are waterproof switches that prevent short circuits due to water. Further, stoppers 4 and 5 are provided at both ends of the rail 3 before and after. And when the car wash machine body 2 is moved,
The limit switch SW1 is in contact with the stopper 4.
Similarly, the limit switch SW2 is in contact with the stopper 5.

The limit switches SW1 and SW2 are
It is used for stopping the rotation of the motor 26. Therefore, when the car washer body 2 is moved in the direction of the stopper 4 and the limit switch SW1 is brought into contact with the stopper 4, the rotation of the motor 26 is stopped. As a result, the car washer body 2 is not moved further in the direction of the stopper 4. Similarly, the body switch 2 is not moved beyond the stopper 5 by the action of the limit switch SW2. That is, the car washer body 2 is reciprocated between the stoppers 4 and 5.

An upper rotating brush 6 is provided inside the car washer body 2.
And side rotation brushes 8 and 9 are provided. The upper rotating brush 6 swings up and down while contacting the upper surface of the vehicle. The side rotating brushes 8 and 9 swing right and left while being in contact with both side surfaces of the vehicle 1. Furthermore, the car wash machine body 2
Inside the cleaning liquid supply device 10 and the polymer supply device 11
Are provided.

The cleaning liquid supply device 10 includes a water tank 13
And a cleaning agent storage tank 14, electromagnetic valves 27 and 28, a hose 15, and a cleaning liquid supply nozzle 12. The water tank 13 stores water and is connected to the electromagnetic valve 27. Then, the water in the water tank 13 is pressurized and sent to the electromagnetic valve 27. The cleaning agent storage tank 14 stores the above-described alkaline cleaning agent. The alkaline neutralizer contains the acid neutralizer and the anti-drying agent. This cleaning agent storage tank 1
4 is also connected to an electromagnetic valve 28. These electromagnetic valves 27 and 28 are connected to the cleaning liquid supply nozzle 12 by a forked hose 15.

The cleaning liquid supply nozzle 12 is used to spray the water or alkali cleaning agent onto the vehicle
It is attached to face. Also, the electromagnetic valve 2
7 and 28 are connected to a control circuit 60 (see FIG. 5), and their opening and closing are controlled. That is, only one of the electromagnetic valves 27 and 28 is opened by the control circuit 60, and water or a cleaning agent is sprayed from the cleaning liquid supply nozzle 12.

A stirring and foaming mechanism is provided in the water tank 13 and the cleaning agent storage tank 14, and air is forcibly mixed with the alkaline cleaning agent and foamed. Further, the cleaning liquid supply nozzle 12 has a foaming function, and the alkaline cleaning agent is forcibly mixed with air and foamed, and is applied to the vehicle surface. When the alkaline cleaning agent is foamed (foamed), the applied alkaline cleaning agent does not immediately fall from the vehicle surface, so that the cleaning power is improved and dirt on the vehicle surface floats. Thereafter, a touch-up operation is performed.

The cleaning liquid supply nozzle 12 may be directed to the upper rotating brush 6 and the side rotating brushes 8 and 9, or may be provided outward from the central axes of the brushes 6, 8 and 9. You may. As a result, the cleaning agent does not directly hit the vehicle surface.

The water in the water tank 13 is supplied to a compressor or a plunger pump (8 to 12 liter / m).
in) and ejected at high pressure. This pressure is 50-70 Kg / cm2.

The polymer supply device 11 includes the compressor 1
7, polymer storage tank 18, electromagnetic valves 30, 31,
It comprises a hose 19 and a polymer supply nozzle 16. The polymer storage tank 18 is connected to electromagnetic valves 30 and 31, respectively. The electromagnetic valves 30, 3
1 is connected to a hose 19 derived from the compressor 17. The hose 19 is connected to the plurality of polymer supply nozzles 16.

The electromagnetic valves 30, 31 are connected to a control circuit 60, and their opening and closing are controlled. The polymer storage tank 18 stores a polymer agent applied to the surface of the vehicle 1.

Then, the polymer agent in the polymer storage tank 18 is sprayed by the compressed air sent from the compressor 17 to the polymer supply nozzle 16. The spraying of the polymer agent may be performed, for example, as follows, without using the compressor 17. A spray container containing a polymer agent is attached inside the car wash body 2. The polymer agent is sprayed by operating this spray container with an electromagnetic solenoid or the like. The compressor 17 may be replaced by a plunger pump or the like. Any material can be used as long as the polymer agent can be sprayed on the vehicle 1 well.

Further, a blower 63 is provided above the inside of the car washer body 2 so that the exhaust port 63a faces the vehicle 1. Moisture remaining on the vehicle 1 is scattered by the wind blown out from the blower 63.

Here, the polymer agent stored in the polymer storage tank 18 has a sufficient protective ability against chemical erosion by the cleaning agent, and, for example, a sufficient amount of moisture remains on the painted surface of the vehicle. A polymer (including a polymer copolymer) of a type capable of reliably forming a coating film even in the state is preferable.

The high molecular polymer is a silicone or a fluoropolymer. As the silicone, those which are dispersible, emulsifiable or soluble in water, such as amino-modified silicone oil or ethoxylated silicone, are desirable.
Similarly, it is desirable that the fluoropolymer is dispersible, emulsifiable or soluble in water. This high molecular polymer may be replaced by a low molecular polymer such as natural wax, pure carbana wax, synthetic wax, silicone resin, fluororesin, polyethylene, polypropylene, polyethylene oxide, polypropylene oxide, paraffin, wax, wax, etc. .

The polymer agent stored in the polymer storage tank 18 is mixed with water. If necessary, a rust preventive such as a fatty acid amine, a wax, a surfactant (cationic surfactant, etc.), a petroleum A coating agent such as a hydrocarbon may be mixed. This coating agent is a natural wax, a synthetic wax, a silicone oil, a modified silicone oil, a silicone resin, a fluororesin, or the like.

The polymer agent stored in the polymer storage tank 18 may contain 0.1 to 50 percent of a cationic surfactant. Examples of the type of the cationic surfactant include dialkyl dimethyl ammonium chloride,
Dialkyl dimethyl ammonium chloride, distearyl dimethyl ammonium chloride, monostearyl trimethyl ammonium chloride, stearylamine acetate, monoalkyl trimethyl ammonium chloride, monoalkyl trimethyl ammonium chloride , Alkylamine acetate n-hexadecyltrimethylammonium bromide, alkyltrimethylammonium chloride, distearyldimethylbenzylammonium chloride, stearyldimethylbenzylammonium chloride, stearyltrimethylbenzylammonium chloride, cetyltrimethylammonium chloride, cetylpyridium chloride, lauryl chloride Trimethylammonium, cetyltrimethylammonium bromide and the like.

The concentration of the aqueous solution of the cationic surfactant may be 0.1% or less, or 50% or more. This kaotin surfactant is a nonionic surfactant having a relatively low detergency, or HLB (hyd
rophilic lipophilic balan
A surfactant having an ce) of 13 or less, an oil-soluble surfactant, a humectant such as squalane or jojoba oil, and a stain preventive such as an antistatic agent may be used.

By the application of the cationic surfactant, the cationic surfactant is applied to the coating layer of the vehicle 1. This cationic surfactant is also called a cationic surfactant. This cationic surfactant is adsorbed on the surface of the coating film to form a non-electrostatic film. Thus, the cationic surfactant acts as a water repellent, a softening agent, an antistatic agent, an antistatic agent, and the like on the surface of the vehicle 1. That is, the vehicle 1
Prevent the generation of static electricity on the surface. As a result, contaminants such as dust in the air are prevented from adhering to the coating film.

This non-electrostatic film is a conductor having higher conductivity than the above-mentioned protective film, and has a lower hardness than the above-mentioned protective film.
It is a surfactant having a low detergency with an LB smaller than 13.
This conductivity is due to the ionization by the cations or has electrical conductivity, thereby preventing generation of static electricity.

[0041] Also, when the chaotic surfactant is used with a natural or synthetic wax, the lipophilic groups of the applied cationic surfactant are attached to the wax. As a result, entry of contaminants and the like into the wax component is prevented, and generation of scale is prevented.

Further, when this kaolin surfactant is used together with a polymer such as silicone oil, the hydrophilic group of the cationic surfactant is attached to the polymer. That is, the lipophilic group of the cationic surfactant is adsorbed to the high molecular polymer while being oriented to the outer air surface. Therefore, the water repellency of the coating film is enhanced, and the adhesion of dirt is more strongly prevented.

As described above, the non-electrostatic film includes a case where the surface side is a lipophilic group and the protective film side is a hydrophilic group, and a case where the surface side is a hydrophilic group and the protective film side is a lipophilic group. . These are aqueous solutions that are soluble in water of the coating film (protective film),
Alternatively, it is determined by the oiliness of emulsifiability or dispersibility in water.

In particular, when a non-conductive (dielectric, electrostatically charged) material, for example, a non-conductive fluororesin or the like is used as a coating agent, a cationic surfactant as an antifouling agent is used on the coating surface. To prevent static electricity from being generated. Therefore, it is possible to prevent dirt from adhering to the coating surface, and to make the appearance of the vehicle 1 more beautiful and long-lasting.

FIG. 4 shows the inside of the car washing apparatus 25 according to the present invention. Two swing arms 21 and 22 are attached to a support shaft 20 spanning both side walls of the car wash machine body 2 so as to be vertically movable. This arm 21,
The upper rotating brush 6 is rotatably attached to 22. An electric motor 23 is provided on a base shaft of one swing arm 21. By the power of the electric motor 23,
The swing arms 21 and 22 are moved up and down. In addition, the upper rotating brush 6 is rotated in accordance with the vertical movement of the swing arms 21 and 22. That is, the electric motor 23, the swing arm 2
The upper rotating brush 6 is swung up and down while being rotated by 1 and 22.

The polymer supply nozzle 16 has a support shaft 20.
At one or more locations. In addition,
The ejection port of the polymer supply nozzle 16 is directed to the vehicle 1. Further, the compressor 17 and the polymer storage tank 18 are fixed on a laying table 24 provided inside the car washer, for example. The hose 19 extending from the compressor 17 is guided upward inside the car wash machine main body 2 along the side wall. The hose 19 is connected to the polymer supply nozzle 16 after being disposed so as not to hinder the movement of the rotating brushes 6 and 8 and other driving mechanisms.

The washing liquid supply nozzle 12 and the polymer supply nozzle 16 may be provided not only above the inside of the car washer body 2 but also on the side. The side rotating brushes 8 and 9 are appropriately pressed against the vehicle 1 while being rotated by power transmitted from an electric motor (not shown).

4. Control Circuit 60 FIG. 5 shows functional blocks of the control circuit 60 used in the car washing apparatus. The control circuit 60 is installed in the car wash body 2. The control circuit 60 includes a CPU 50, a ROM
51, a RAM 52, drive circuits and an interface circuit. That is, information such as data or a chip address is transmitted in two directions to the system bus 53.
Is provided. The system bus 53 has C
The PU 50, the ROM 51, the RAM 52, the drive circuit 54, and the interface circuit 56 are connected.

The operation of each device of the control circuit 60 is controlled by the CPU 50. Each program executed by the CPU 50 is stored in the ROM 51. The RAM 52 stores temporary information such as various types of general-purpose data. The drive circuit 54 includes the electromagnetic valve 27,
28, 30, 31, the motor 26, the electric motor 23, the compressor 17, and the blower 63, and control the driving of these devices.

The interface circuit 56 is connected to limit switches SW1, SW2 and an operation panel & display device 58. Limit switches SW1, SW2
The ON / OFF signal of the limit switch is input from the switch. Then, from the operation panel of the operation panel & display device 58, a signal for commanding the operation of the car wash body 2 is input. The operation of the car washer body 2 is input by the user. Further, information indicating the operation state of the car wash machine body 2 is output to a display device (such as a liquid crystal display) via the interface circuit 56.

5. Car Washing Method A car washing method using the car wash machine main body 2 having the above configuration will be described with reference to the flowchart of FIG. Vehicle 1 is rail 3
The vehicle is stopped at a predetermined position. Thereafter, when the operation switch of the car wash machine main body 2 is turned on, first, steps 70 to 8 are performed.
In step 2, the vehicle is washed with water (washing process A).
The water washing step A is performed to remove water-based dirt, dust, and mud of the vehicle 1. That is, the car washer body 2 is moved from the position immediately before the stopper 5 toward the stopper 4 (arrow 6 in FIG. 3).
It moves to 1) (step 70). At the start of this movement, the electromagnetic valve 27 is opened, and water is sprayed on the vehicle 1 (step 72). At the same time, rotating brush 6
Other processes are performed such that the rotating device # 9 contacts the vehicle 1 while being rotated (step 74).

The processes of steps 70 to 74 are repeated until the car wash body 2 is moved in the direction of the stopper 4 and the limit switch SW1 contacts the stopper 4 (step 76). When the car washer body 2 is moved to the end in the direction of the stopper 4, the upper rotating brush 6 and the side rotating brushes 8 and 9 are set so as to be completely separated from the vehicle 1 after washing the rear surface of the vehicle 1. Have been. That is, the rear surfaces of the vehicle 1 are set to be completely cleaned by the brushes 6 to 9.

As a result of the above operation being repeated until the limit switch SW1 comes into contact with the stopper 4, mud and the like adhering to the vehicle surface are removed by washing the rotating brushes 6 to 9 with water spray. When the limit switch SW1 comes into contact with the stopper 4, the movement of the car wash body 2 in the direction of the arrow 61 is stopped (step 78). Then, the electromagnetic valve 27 is closed (step 80), and the spraying of water is stopped. Further, other processing such as stopping the rotation of the rotating brushes 6 to 9 is performed (step 82).

Next, the alkaline cleaning agent washing step B of steps 84 to 96 is started. The alkaline cleaning agent washing step B is performed to remove scale from the surface of the vehicle 1.
First, the movement of the car washer body 2 from the position immediately before the stopper 4 toward the stopper 5 (arrow 62 in FIG. 3) is started (step 84). Simultaneously with the start of the movement, the electromagnetic valves 27 and 28 are opened (step 86). As a result, the foamed liquid mixture of water and the alkaline cleaning agent is foamed and sprayed from the cleaning liquid supply nozzle 12 to the vehicle 1. Rotating brush 6 ~
Other processing such as rotating 9 is performed (step 88). In this case, without driving the rotating brushes 6 to 9, the alkaline cleaning agent can be attached to the surface of the vehicle for a while so that the dirt can be floated.

The processes of steps 84 to 88 are repeated until the car washer body 2 is moved in the direction of arrow 62 and the limit switch SW2 contacts the stopper 5 (step 90). As a result, the water scale caused by the wax applied to the painted surface is removed by active decomposition by brushing of the rotating brushes 6 to 9 with the mixed liquid. When the limit switch SW2 hits the stopper 5,
The movement of the car washer body 2 in the direction of arrow 62 is stopped (step 92).

Thereafter, the electromagnetic valves 27 and 28 are closed (step 94). Note that the car wash machine body 2 is
, The rotating brushes 6 to 9 are detached after brushing the front part of the vehicle 1. Then, rotating brush 6 ~
Other processing such as stopping the rotation of No. 9 is performed (step 96). Thus, the detergent washing step B is completed.

Next, a water washing step C is started. In the water washing step C, the cleaning agent sprayed on the vehicle 1 in the above step B is washed away. That is, the car washer body 2 is moved from the position immediately before the stopper 5 toward the stopper 4 (arrow 61 in FIG. 3).
(Step 98). At this time, the electromagnetic valve 27 is opened, and water is sprayed on the vehicle 1 (step 1).
00). At the same time, other processing is performed in which the rotating brushes 6 to 9 come into contact with the vehicle 1 while rotating (step 102). A touch-up operation is performed after or before the water washing step C. In this touch-up work, the paint surface is repaired with dents and dents embedded therein.

The processes of steps 98 to 102 are repeated until the car washer body 2 is moved in the direction of arrow 61 and the limit switch SW1 contacts the stopper 4 (step 104). When the limit switch SW1 comes into contact with the stopper 4, the movement of the car wash machine body 2 is stopped (step 106). Then, the electromagnetic valve 27 is closed (step 108), and the spraying of water is stopped. Further, other processing such as stopping the rotation of the rotating brushes 6 to 9 is performed (step 110). In the above-described water washing step C, the remaining alkaline cleaner and the like on the vehicle 1 are washed with water.

Next, a coating step D of the high-molecular polymer is performed. That is, in a state where the surface of the vehicle 1 is applied, the application operation of the high molecular polymer is performed by steps 112 to 124 in FIG. First, the movement of the car washer body 2 in the direction of the arrow 62 is started (step 112). Car wash machine body 2
With the movement, the electromagnetic valve 31 is opened, the compressor 17 is operated (step 114), and other processing such as rotating the rotary brushes 6 to 9 is performed (step 116). The processing of steps 112 to 116 is repeated until the limit switch SW2 comes into contact with the stopper 5 (step 118).

When the electromagnetic valve 31 is opened and the compressor 17 is operated, the high molecular polymer and the cationic surfactant are sprayed vigorously from the polymer supply nozzle 16 toward the vehicle 1. As a result, the high molecular polymer and the cationic surfactant are coated on the entire painted surface of the vehicle 1 on which the scale has fallen. In this case, since the high molecular polymer is sprayed with the painted surface of the vehicle 1 wet, the coating film is formed thinly and uniformly on the surface of the vehicle 1 due to the slipperiness of water. Note that the rotation processing of the rotating brushes 6 to 9 in the above step 116 may be omitted. That is, only the application of the high molecular polymer and the cationic surfactant may be performed.

When the limit switch SW2 hits the stopper 5 and is turned on, the movement of the car washer body 2 is stopped (step 120). Simultaneously with the stop of the car washer body 2, the electromagnetic valve 31 is closed and the operation of the compressor 17 is stopped (step 122). Further, other processing such as stopping the rotation of the rotating brushes 6 to 9 is performed (step 124).

The application of the high molecular polymer in a wet state on the vehicle surface is preferably performed in a state in which a small amount of water remains to the extent that the painted surface is wetted by spraying. If the remaining amount of water is too large, the coating amount until the polymer agent is fixed increases, and if the remaining amount of water is too small, lubricity cannot be obtained, and the spreading of the polymer agent becomes poor, resulting in unevenness. It is. Therefore, before the application of the polymer agent, the residual water of the vehicle 1 may be reduced by blowing air from the blower 63 or the like.

When the application in the application step D of the high molecular polymer is completed, a drying step of the surface of the vehicle 1 is executed. First, the movement of the car wash body 2 in the direction of arrow 61 is started. With the movement of the car wash machine body 2, the blower 63 is operated. Thereby, the moisture remaining on the surface of the vehicle 1 is scattered, and the fixation of the coating film is promoted. The processing in this drying step is performed by stopping the limit switch SW1. 3 par 4
Is repeated until it is contacted. Limit switch SW
When 1 hits the stopper 4 and turns on, the car wash machine body 2
Is stopped. The operation of the blower 63 is stopped in conjunction with the stop of the car wash machine body 2. By this drying step, a coating film of the polymer and the cationic surfactant is reliably formed on the surface of the vehicle 1.

These working steps A, B, C and D are shown in FIG.
May be performed semi-automatically or manually by the car wash device 71 shown in FIG. This car washing device 71 has switching buttons 72, 7
3, 74, 75 are provided, and the above-mentioned working steps A, B,
C and D are manually switched. The same devices and components as those provided in the above-described car wash device 25 are provided in the car wash device 71. However, rail 3, stoppers 4, 5, rotary brushes 6, 8, 9 indicating shaft 20, swing arms 21, 22, electric motor 23, facility stand 24, motor 2
6, the limit switches SW1, SW2, etc. are omitted.

Further, water or an alkaline cleaning agent is foamed and sprayed from the spray nozzle 76. Spray nozzle 77
Sprays a high molecular polymer and a cationic surfactant. The operator uses the spray nozzle 76 and the spray nozzle 7
7 and switch buttons 72, 73, 74, 75
By selecting and pressing, the above work steps A, B, C, D
Can be sequentially performed.

When the switching buttons 72, 73, 74, 75 are turned on, the above-described working steps A, B, C, D are started, respectively. Switching buttons 72, 7
When the limit switches SW1 and SW2 are turned on, the above processing is performed by turning off the switches 3, 74 and 75.
The work steps A, B, C, and D are completed.

The present invention is not limited to the above embodiments, but can be variously modified without departing from the spirit of the present invention. The jet outlet of the cleaning liquid supply nozzle 12 may be directed not to the vehicle 1 but also to the rotating brushes 6 to 9. Thereby, it is not necessary to apply the alkaline cleaning agent directly to the painted surface of the vehicle 1.

In the steps A to F, in the first car wash of the vehicle, all of the steps A to D are performed, and in the second car wash, the higher of the steps A to D is performed. Only the step D of applying and drying the molecular polymer may be omitted, or the washing step A may be omitted. This is possible when the high-molecular polymer protective film is strong.

These car washing steps can also be performed manually. In this case, the above-mentioned cleaning agent is manually applied, the stain is manually removed, and the cleaning or washing with an alkaline cleaning agent and the touch-up operation are performed. The manual washing with water includes removing stains and washing away the detergent after washing.

In the above embodiment, the high-molecular polymer is coated while the vehicle surface is wet. However, the coating may be performed after the vehicle surface is dried. After the coating step of the high molecular weight polymer is completed, a water washing step may be performed to make the finish beautiful. This washing step is the same as steps 70 to 76 described above. Furthermore, the car washing method of the present invention can be entirely performed manually. That is, washing with water,
Part or all of the washing with an alkaline detergent, washing with water, and application of the high molecular polymer may be performed manually.

The above limit switches (SW1, SW2)
The installation position of the rotary brush 6 is not limited to the above-described embodiment.
Any position may be used as long as the relative position of the vehicle 8 with respect to the vehicle 1 can be detected. In other words, the limit switches SW1, S are located at positions where the upper rotating brush 6 and the lateral rotating brush 8 can detect that all the side surfaces and front and rear surfaces of the vehicle 1 have been brushed.
W2 may be attached.

For example, the relative position of the rotating brush 8 in the car washer body 2 is detected by a sensor. Then, it is detected that the car wash machine body 2 moves and the rotating brush 8 is displaced from the side surface of the vehicle 1 to the front surface or the rear surface, or the rotating brush 8 that the car wash machine body 2 moves and projects to the center is The contact with the front or rear surface may be detected.

In this case, the displacement or movement of the lever supporting the rotating shafts of the rotating brushes 6 and 8 is determined by a potentiometer,
It will be detected by a sensor such as a limit switch.
Further, the limit switches (SW1, SW2) may be provided at any positions as long as they can detect the front end and the rear end of the vehicle, such as an optical sensor and a magnetic sensor.

In the above embodiment, the rotating brushes 6, 8,
Reference numeral 9 may be any type such as a sponge type, made of cloth, or the like, or may be omitted. Further, in the above embodiment, the target of the coating surface protection is a vehicle such as an automobile, but the present invention,
It is not limited to this. In other words, trains, moving objects such as airplanes, furniture, household items such as figurines and miscellaneous goods, or objects such as bronze statues, bronze statues and the like installed inside and outside the room, if the surface needs to be protected from corrosion, etc. Anything is possible.

The electromagnetic valve 27 and the cleaning liquid supply nozzle 12 may be of any type as long as water can be ejected from the nozzle 12, such as by directly connecting to a water pipe. The same is true for the electromagnetic valve 28, as long as an alkaline cleaning agent can be mixed with water and jetted from the cleaning liquid supply nozzle 12. Further, the alkaline cleaning agent in the cleaning agent storage tank 14 is not particularly limited in the present invention. Any material having strong detergency may be used.

It should be noted that, at the time of the first car wash, the painted surface may be slightly decomposed and slightly roughened. However, there is no problem because the painted surface is not remarkably roughened by the first washing. In addition, since the application of the high-molecular polymer is performed instead of replenishing the oily component with wax, the vehicle surface has a structure that is hard to scale, and a touch to remove the scale during the second and subsequent car washing. Up work is hardly required. In addition, since the coating film of a high polymer is applied every time a car is washed, the coating film is repeatedly applied as the car is washed, the penetration of water scale is further reduced, the depth of gloss and the protection ability against detergents are increased. You.

[0077]

As described above in detail, the present invention relates to a cleaning agent and an acidic neutralizing agent for neutralizing the active alkali component Na2O released as an impurity in the alkali component of the cleaning agent. Was mixed. Therefore, the active alkali component N
This has the effect of preventing the activity of a2O, suppressing the disadvantages of the alkali component (alkali builder), and efficiently extracting only the original cleaning power of the detergent containing the alkali component.

Further, according to the present invention, a cleaning agent and a water-soluble anti-drying agent for preventing an alkali component in the cleaning agent from drying on the vehicle surface when the surface of the vehicle is washed with the cleaning agent are added to water. Mixed. Therefore, effects such as prevention of evaporation of water in the detergent, prevention of concentration of the alkali component (alkali builder), and prevention of an increase in the adverse effect of the active alkali component Na2O are exhibited.

[Brief description of the drawings]

FIG. 1 shows the results of an experiment in which an acidic neutralizing agent or an anti-drying agent is mixed with an alkaline cleaning agent.

FIG. 2 shows an experimental result of each example of a cleaning agent.

3 shows a perspective view of the inside of the car wash device 25. FIG.

4 shows the inside of the car wash device 25. FIG.

FIG. 5 shows functional blocks of a control circuit 60.

FIG. 6 shows an operation flowchart of the car wash device 25.

7 shows another car washing device 71. FIG.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Vehicle, 2 ... Car wash machine main body, 3 ... Rail, 4, 5 ... Stopper, 6 ... Upper rotating brush, 8, 9 ... Side rotating brush,
10: Cleaning liquid supply device, 11: Polymer supply device, 1
2 ... Cleaning liquid supply nozzle, 13 ... Water tank, 14 ... Cleaning agent storage tank, 15 ... Hose, 16 ... Polymer supply nozzle, 17 ... Compressor, 18 ... Polymer storage tank, 19 ... Hose, 20 ... Support shaft, 21, 22: swing arm, 23: electric motor, 24: laying table, 25: car washing device,
26 ... motor, 27, 28 ... electromagnetic valve, 50 ... CP
U, 51 ROM, 52 RAM, 53 system bus, 54 drive circuit, 56 interface circuit, 5
Reference numeral 8: operation panel & display device, 60: control circuit, 61: arrow, 62: arrow, 63: blower, 63a: exhaust port, 71
... Car wash device, 72, 73, 74, 75 ... Switching button, 76, 77 ... Spray nozzle.

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁶ Identification code FI C11D 3/30 C11D 3/30 3/37 3/37 // B60S 3/00 B60S 3/00

Claims (6)

[Claims] 1. A cleaning agent for vehicles, wherein a cleaning agent and an acidic neutralizing agent for neutralizing an active alkali component Na2O released as an impurity in an alkali component of the cleaning agent are mixed with water. 2. A cleaning agent and a water-soluble anti-drying agent for preventing an alkali component in the cleaning agent from drying on the vehicle surface when the vehicle surface is washed with the cleaning agent are mixed with water. Vehicle cleaning agents. 3. The acidic neutralizing agent is an inorganic acid, an organic acid or an aminocarboxylic acid. The alkaline component is sodium hydroxide, sodium hydroxide, sodium carbonate, sodium metasilicate, sodium orthosilicate,
The vehicle cleaning agent according to claim 1, wherein the cleaning agent is sodium sesquicarbonate. 4. The water-soluble anti-drying agent is ethylene glycol, polyethylene glycol, propylene glycol, dipropylene glycol, glycerin, diglycerin or polyglycerin, and the alkali component is caustic soda, caustic potash, sodium carbonate, metasilicate. Sodium silicate, sodium orthosilicate,
The vehicle cleaner according to claim 2, wherein the vehicle cleaner is sodium sesquicarbonate, and the acid neutralizer according to claim 1 is mixed with the vehicle cleaner according to claim 2. 5. The vehicle according to claim 2, wherein the surface of the painted portion of the vehicle is cleaned with the cleaning agent according to claim 1 or the acid neutralizing agent according to claim 1. Wash the surface of the washed vehicle with water, remove the cleaning body with water, and apply a polymer to the surface of the removed painted portion of the vehicle to paint the vehicle. A method for cleaning a vehicle, comprising forming a polymer protective film on a surface of a portion. 6. The vehicle according to claim 2, wherein the surface of the painted portion of the vehicle is cleaned with the cleaning agent according to claim 1 or the acid neutralizing agent according to claim 1. Means for cleaning the surface of the cleaned vehicle using water; means for cleaning the surface of the cleaned vehicle using water; and applying a polymer to the surface of the painted portion of the removed vehicle. Means for forming a polymer protective film on the surface of the painted portion of the vehicle.