JPH0761334A - Method for washing vehicle - Google Patents

Abstract

PURPOSE:To provide a method for washing vehicle, which can eliminate the fouling of the surface of a vehicle perfectly without damaging the surface of the vehicle and which can heal the damage of the surface thereof. CONSTITUTION:Damage and irregularity of the surface of a vehicle is healed by a first coated-surface protecting film 3, which is formed as a first later in a first high molecular polymer coating process of a first washing, and a second coated-surface protecting film 4, which is formed as a second layer in a second high molecular polymer coating process, is eliminated and re-formed to perfectly eliminate the fouling of the surface of the vehicle without damaging the surface of the vehicle.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a car washing method for completely removing stains on the surface of a vehicle and for not damaging the surface of the vehicle and healing the scratches on the surface of the vehicle.

[0002]

2. Description of the Related Art Wax applied for the purpose of glossing the surface of a vehicle coating (hereinafter referred to as the coating surface) and preventing deterioration,
It is composed of various oils such as syrup and silicone. For this reason, when oil-based pollutants in the atmosphere such as waste soot and smoke generated from diesel engines and factories or hand deposits adhere to the wax, they dissolve in the wax and the wax itself becomes dirty, forming so-called scale on the painted surface. To be done. This water stain makes the vehicle's paint look dirty, so it is necessary to remove the wax itself in order to restore the original beautiful painted surface, and in the past, in addition to manual work with poor work efficiency,
A gate-type car wash machine or the like was used to carry out a car wash for removing scales with a surfactant as shown in FIG.

[0003] In this process of car wash for removing scales, the vehicle is first washed with water, and then, while the surface of the wax coating and the rotary brush of the gate type car washer is sprayed with a surfactant, the surface of the rotary brush is rubbed to rub the scale. Is actively decomposed and removed. Depending on the amount and quality of scale, it may not be possible to completely remove it with a rotating brush, so a so-called touch to scrape scale off manually by adding a surfactant, fine particle abrasive, oily solvent, etc. to sponge etc. Correction by up is performed if necessary. After that, water was sprayed on the vehicle surface to wash off the surfactant, and finally wax was sprayed to be applied.

[0004]

However, in the conventional car wash for removing scale using a surfactant, the deterioration of the coated surface proceeds by the mechanism shown in FIG. That is,
The paint used for painting is a resin that basically contains an oil component mixed with pigments for coloring, so if you rub the surface with a rotating brush while applying a surfactant, the surface of the paint will decompose It is degreased by (a), the surface is lost in smoothness, and light is diffusely reflected by the exposure of the pigment to lose the gloss (so-called chalking of the coating). Therefore, in order to maintain luster, a wax coating operation is performed to replenish the paint degreased with a surfactant with an oily component.

The luster obtained in the process of replenishing the oil component is the luster of the oil, and the luster of the coating itself is not restored. The paint surface roughened by chalking
Since the contact surface with the atmosphere is increasing, it has a structure in which the adhesion of scale is accelerated. Moreover, since the amount of wax applied is increased in order to maintain the gloss of the coated surface, the redeposited scale becomes harder to remove (d).
In order to remove this strong scale, the surface of the paint must be rubbed more strongly by touch-up (e), which further roughens the paint (f). For this reason, it becomes more and more difficult to maintain the gloss (g), the amount of replenishment of the oily component by the wax to increase the gloss is further increased (h), and the more difficult to remove scales quickly arrives (i). By repeating the vicious cycle as described above, the roughening of the coating surface gradually progressed.

In consideration of the above points, there has been conventionally adopted a method of avoiding degreasing of the coated surface by using a surfactant having a low ph value in the steps of a and b of FIG.
Since this method reduces the effect of removing scale, the amount of work at the touch-up stage is increased, and the employees of the gas station are forced to work hard. Further, even if the pH value of the surfactant was lowered, the progress of deterioration could be delayed, but the mechanism of deterioration itself could not be removed, and no solution was provided.

Therefore, the applicant of the present invention has proposed a car washing method comprising a surfactant washing step, a water washing step, and a high molecular polymer coating step (Japanese Patent Application No. 3-107512). I tried to prevent the roughness due to. That is, in this car washing method, a high molecular weight polymer that does not dissolve contaminants such as wax in car washing is applied to the vehicle surface to form a high molecular weight polymer film on the vehicle surface. In addition to polishing, the coating was used to protect the coated surface from the surfactant during car wash.

However, even in this car washing method,
If the polymer coating is destroyed before or during the car wash, the surfactant will come into contact with the painted surface of the vehicle during the car wash process, causing partial but roughening of the vehicle surface. There was an inconvenience. The present invention has been made in order to solve the above-described problems, and completely removes dirt on the vehicle surface, heals the scratches on the vehicle surface without damaging the vehicle surface, and removes water from the car wash. It is an object of the present invention to provide a car wash method that can improve work efficiency.

[0009]

In order to achieve the above object, in the car washing method according to the present invention, the first car washing step is
A first polymer coating step of applying a first polymer on the vehicle surface to form a first surface protective coating on the vehicle surface; A second high molecular polymer coating step of coating a second high molecular polymer having a low hardness to form a second protective coating film on the first protective coating film. The second and subsequent car washing steps do not include at least the first high molecular polymer coating step but include at least the second high molecular polymer coating step.

[0010]

According to the present invention, the scratches and irregularities on the vehicle surface are healed by the first protective coating film formed in the first high molecular weight polymer coating step of the first car wash, and the second high-level coating is applied. By removing and reforming the second layer surface protective coating formed in the molecular polymer coating step, it is possible to completely remove stains on the vehicle surface without damaging the vehicle surface. This allows
For example, in a white car that has aged from a new car, in many cases, it is often washed by an ordinary car wash to remove dirt and the paint is rough and chalky, but it can be cured and aged from the new car. In a dark-colored car, an old wax is often laminated and fine scratches are often present in a normal car wash, and this can be healed.

[0011]

EXAMPLE FIG. 2 is a sectional view of the vehicle surface after car washing. In FIG. 2, reference numeral 1 denotes a coating portion formed by applying a coating material on the outer plate metal 2 of the vehicle. On the coated surface 1a of the coated portion 1, covering the scratches, uneven portions, etc. of the coated surface 1a,
The coated surface 1a looks smooth and the coated portion 1
The first coating film 3 for protecting the is formed.
The first coating film 3 is made of a first polymer such as resin and has a property that it is firmly attached to the coated surface 1a and is not easily broken or dropped.

The first polymer is made of the same material as the coating material of each vehicle, or has a hardness close to this.
Alternatively, a material whose hardness is softer than that of the coating material can be used. For example, melamine resin, urethane resin, fluororesin, phenol resin, (thermosetting) acrylic resin,
Epoxy resin, methacrylic resin, vulcanized rubber, polyethylene, polystyrene, polypropylene, polycarbonate, polyacetal, urea resin, polyester resin, alkyd resin, melamine resin, polyvinyl chloride, polyamide, silicone, etc. Examples include molecular polymers, addition polymers and polycondensates. This first polymer may be mixed with an auxiliary agent such as an organic agent such as petroleum hydrocarbon, a rust preventive agent such as a fatty acid amine type, an ultraviolet cut coating and the like.

As a material for coating each of the above vehicles, melamine resin is used for white and solid color vehicles, and thermosetting acrylic resin is used for metallic coating vehicles and pearl marker coating vehicles. There are also those with a clear coating containing a fluorine resin and those with an electrodeposition urethane coating. In addition, there are urethane resin coatings, two-component acrylic urethane coatings and modified acrylic coatings as repair coatings. In addition, marker coating, that is, base coating Marker base is thinly painted, mica is lined on this, and a clear coat is applied on top of this, or fluororesin coat specification coating, that is, polyvinylidene fluoride as the base contains fluorine. There are coatings with reduced amounts and fluoropolymer copolymers copolymerized with several vinyl ethers, which have low coating hardness. In any case, the first polymer may be made of the same material as the coating material of each vehicle, a material having a hardness close to this, or a material having a hardness softer than that of the coating material.

Further, like the first coating film 3, a second coating film 4 is formed on the first coating film 3 so as to make the painted surface 1a look smooth and protect the painted portion 1. The second coating film 4 is composed of a second polymer such as silicone. The first high molecular polymer has a hardness higher than that of the second high molecular polymer, and the second high molecular polymer is easily peeled off, while the first high molecular polymer is hard to be peeled off. .
The second high molecular polymer may be any of those listed as the first high molecular polymer as long as it is softer than the first high molecular polymer. In particular, silicone rubber, silicone resin, ethoxylated silicone, amine-modified silicone and the like are preferable. The second high-molecular polymer contains an auxiliary agent such as an organic agent such as a petroleum hydrocarbon, a rust preventive agent such as a fatty acid amine-based agent, a wax, and a lubricity auxiliary agent including an ultrafine particle. You may mix. The ultrafine particles are composed of calcium compounds, ultrafine ceramic abrasives, and the like.

As described above, the painted surface 1 of the painted portion 1 of the vehicle
Since a is covered with the first coating film 3 and the second coating film 4 in a smooth state,
After the car wash, the surface of the vehicle becomes glossy when the wax is applied or more. Further, since both the first and second coating films 3 and 4 are composed of a high molecular weight polymer, oily contaminants do not dissolve in the first and second coating films 3 and 4, and when washing a car, It is only necessary to remove contaminants and the like attached to the upper surface of the second coating film 4 and the like, which facilitates car washing work. further,
The coating films 3 and 4 may be one layer, and accordingly, the polymer polymer coating steps C and D may be one step. In this case, the coating film may be a mixture of the first high molecular polymer and the second high molecular polymer.
Further, in the new car, since there is no scratch or uneven portion on the coated surface 1a, in the first car wash step, the first coating film 3
The first high molecular polymer coating step C may be omitted without forming.

Next, a car washing method for forming the first and second coating films 3 and 4 on the coating surface 1a of the coating portion 1 of the vehicle will be described with reference to FIG. FIG. 1 (a) shows the first car wash step when the descaling car wash is performed for the first time by the car wash method according to the present invention. This first car wash step includes a first cleaning step A, a second cleaning step B, a first high molecular polymer coating step C, a second high molecular polymer coating step D, and a third cleaning step. Car wash work is performed in this order.

The first cleaning step A is a step for removing water-soluble dirt such as contaminants and mud adhering to the coating surface 1a of the coating portion 1 of the vehicle and the wax. In this step A, a vehicle is washed by using (spraying) a surfactant or water and using a hand washing machine, a car washing machine, an electric polisher, an air polisher or the like. Second cleaning step B
Is a step for sufficiently removing non-water-soluble (oil-soluble) stains such as oil on the coated surface 1a and the wax itself, and for firmly attaching the first coating film 3 to the coated surface 1a. This is the previous step. In this step B, oil such as wax is completely removed from the coated surface 1a by using an oil removing agent prepared by mixing an abrasive or a surfactant with various abrasives such as an ultrafine particle compound and trap clay.

This oil removal work is carried out with a sufficient amount of water left on the coated surface 1a, and at the end of the work the oil remover is thoroughly washed off. The first cleaning step A and the second cleaning step B can be performed simultaneously in parallel. In this case, in a white car, the coating surface is often rough due to rough care, and the paint is often rough, and in a dark car, a sticky wax is accumulated and an oily pollutant often covers the surface. In accordance with this, the content of the process A also changes. The trap clay is obtained by kneading an ultrafine ceramic abrasive into a synthetic clay, and the coated surface 1a is rubbed by utilizing the lubricity of water, a surfactant or the like.

The first polymer coating step C is a step of forming the first coating film 3 on the coating surface 1a of the coating portion 1 of the vehicle. In this step C, the liquid first
Of the high molecular polymer or the one to which the above-mentioned organic solvent or the like has been added, is sprayed onto the coated surface 1a in a mist form by spraying, or is sprayed onto an applicator such as a sponge. Then, the coating work is performed such that the one direction and the two cross directions are divided into two or extended in the rotation direction. This coating operation is performed only once or repeatedly.

This coating operation is carried out with a sufficient amount of water left on the coated surface 1a. As a result, the sprayed fine particles of the first high-molecular polymer float, mix, or dissolve in water on the coated surface 1a, and are evenly applied on the coated surface 1a according to the slipperiness of the water, resulting in a smooth surface. The first coating film 3 is formed. Then, depending on the case, finally, the water is drained by using a water draining tool such as a sponge, a cloth, a soft brush, and a feather brush, and the first coating film 3 is fixed. The first high molecular polymer solidifies after coating. This solidification may be natural solidification, water solidification, light solidification, air solidification, or heat solidification.

The second polymer coating step D is a step of forming the second coating film 4 on the first coating film 3. In this step D, the above-mentioned second high molecular polymer in a liquid state or, in some cases, the above-mentioned slip aid is added in the same manner as in the first high molecular polymer coating step C. To do. That is, the second polymer or the like is atomized by spraying or the like and sprayed on the first coating film 3 on the coating surface 1a, or sprayed on an applicator such as a sponge, and the application tool or the like is used in one direction or the like. Applying work such as extending to.

Since this coating operation is also carried out with sufficient water left on the first coating film 3 on the coating surface 1a, the sprayed second high molecular polymer utilizes the lubricity of water. Is applied uniformly to form a smooth second coating film 4 on the first coating film 3. Then, in some cases, the water is finally drained in the same manner to fix the second coating film 4. This first high molecular polymer is
Hardens after application. This solidification may be natural solidification, water solidification, light solidification, air solidification, or heat solidification.

The above-mentioned second cleaning step B, first high molecular polymer coating step C and second high molecular polymer coating step D are
It was done with water, but it is also possible not to use water.
Further, the application of the first coating film 3 (first high molecular polymer) and the application of the second coating film 4 (first high molecular polymer) may be performed by spraying or the like.
Electrostatic spray, mixed spray with water, sponge, cloth, soft brush, feather brush etc.Apply the high molecular polymer to the vehicle surface or apply the high molecular polymer itself with a brush etc. The coating method may be any method such as pouring the high molecular weight polymer itself.

In the third cleaning step E, of the first and second high molecular weight polymers applied on the coated surface 1a, excess ones which do not form the first and second coating films 3 and 4 are used. It is a process of washing from the surface. In this process E,
Excess first and second polymeric polymers are washed away using water. In this case, the car washing work may be carried out by either hand washing or using a car washing machine, but in order to prevent the formed first and second coating films 3 and 4 from being destroyed, a surfactant is used. Should not be used as much as possible.

FIG. 1 (b) shows a car wash process in the case where the car wash is carried out by the first car wash process and then the descaling car wash is carried out after the second car wash process. The second and subsequent car washing steps are composed of a first washing step A, a second polymer coating step D, and a third washing step E, and the car washing operation is performed in this order. That is, in the second and subsequent car washing methods, water-soluble stains such as pollutants and mud adhering to the second coating film 4 on the vehicle surface are removed.

Next, the second polymer coating step D
Is a step of removing the second coating film 4 on the first coating film 3 together with dirt. In this step D, the above-mentioned second high-molecular polymer or one obtained by adding the above-mentioned lubricity aid or the like, and an oil component obtained by mixing a penetrant or a surfactant with various abrasives such as ultrafine particle compounds. A material to which a removing agent or the like has been added is applied. As a result, the old second coating film 4 becomes integrated with the newly applied second high molecular polymer together with the dirt. Then, finally, the second polymer is washed out with water. As a result, the old second coating film 4
Are removed together with the dirt, and a new second coating film 4 is reinforced by the remaining second polymer. In this case, since the second polymer (second coating film 4) is softer than the first polymer (first coating film 3), the first coating film 3 does not peel off and the second coating film 3 does not peel off. Only 4 peels off.

As described above, since the first coating film 3 and the second coating film 4 are formed on the painted surface 1a of the painted portion 1 of the vehicle during the first car wash for removing scales, the outer surface Even if the second coating film 4 on the side is partially destroyed before the car washing or is destroyed during the car washing,
The first coating film 3 is provided inside the coating film 4.
Therefore, the surfactant does not come into direct contact with the painted surface 1a during car washing. Therefore, the painted surface 1a does not become rough during car washing, and the painted portion 1 of this vehicle can be kept continuously glossy by the first and second coating films 3 and 4.

If the first coating film 3 is formed on the painted surface 1a of the vehicle by the first descaling car wash, the first coating film 3 is protected by the second coating film 4 and is not destroyed. Moreover, since the first coating film 3 is also firmly adhered to the coated surface 1a through the oil removing step B, the oil removing operation and the first high molecular polymer application are performed during the second and subsequent washings for car cleaning. No work required. Therefore, the oil removal step B and the first polymer coating step C are not required during the second and subsequent descaling and car washing operations, which facilitates and speeds up the car washing work as compared to the first descaling and car washing step. To be

Further, the car wash work for the first time and the second time and thereafter is only required to be carried out with sufficient water remaining on the vehicle surface, so that compared to the conventional case of applying wax or the like. The car wash can be performed quickly and easily without the need for polishing or drying. In addition, the coating part 1 heated by the hot air of the engine and the cooler in the summer season is in an active state and the paint is easily peeled off during car washing. However, in this car washing method, the coating surface 1a of the vehicle is Since the water content is sufficiently left, the coating part 1 is cooled to the water content, and even in such a case, the paint is not peeled off when the car is washed. Furthermore, the painted surface 1a of the vehicle
Even if dust adheres to the coating surface 1a during car washing, the dust is washed away with water and the coating surface 1a is not damaged. Further, even if it rains or snows during car washing, it is not necessary to move the vehicle or stop the car washing work since the drying work is unnecessary.

In addition, each of the steps A to E including the third washing step E can be wiped up without using water, but washing with water or using water is preferable.
By using this water, the first and second coating films 3 and 4 can be made uniform over the entire vehicle surface, and labor can be saved compared to the wiping operation. It will not scratch the surface of the vehicle with small scratches, and there will be no problem even if there is rainfall during the work, and it will be possible to respond to changes in the weather during the work.

Further, washing with water may be carried out at the end of each of the steps B to D. In this washing and the respective washings of the first washing step A and the third washing step E, sponge, cloth, soft brush, You may make it drain water using a draining tool such as a feather brush.

The present invention is not limited to the above embodiments, and various modifications can be made without departing from the spirit of the present invention. For example, Japanese Patent Application No. 3-1
It may be automated by a car washing machine shown in No. 07512. In this case, the polymer supply nozzle 16, the polymer storage tank 18, and the like are installed in the first coating film 3
(First polymer) and second coating film 4
A plurality of (first high molecular weight polymers) are provided, and feather brushes can be used as the rotary brushes 6, 8, and 9.

The first car wash step is usually only the first car wash, and the second and subsequent car wash steps are repeated the second car wash step. In some cases, the first car wash step is repeated. The car wash process may be performed a plurality of times, or the first car wash process may be performed once each time the second car wash process is performed a plurality of times.
You may go there many times. Furthermore, the first car wash step is
A first cleaning step A, a second cleaning step B, a first high molecular polymer coating step C, a second high molecular polymer coating step D, and a third cleaning step E. The washing step A or the third washing step E may be omitted, and the second car washing step may include the first washing step A, the second high molecular polymer coating step D, and the third washing step. Process E, but first
Of the cleaning step A or the third cleaning step E may be omitted, the second cleaning step B may be performed, or each of the steps A to E
May be repeated twice or more, or the first cleaning step A and the second cleaning step B may be performed simultaneously.
Further, each of the steps B, C and D can be performed without using water at all.

The coating films 3 and 4 may have three or more layers, and accordingly, the polymer polymer coating steps C and D may have three or more steps. In this case, the second coating film 4, the first coating film 3, and the second coating film 4 may be laminated in this order, or even in the case of two layers, the first coating film 3 and the second coating film 4
And may be replaced and laminated. In the case of a new car, only the second and subsequent car washing may be performed from the beginning.

[0035]

As is apparent from the above description, according to the present invention, in the first car wash step, the first polymer is applied to the vehicle surface, and the first surface of the vehicle is applied. A first polymer coating step for forming a protective film, and the first
The second high molecular polymer is formed by applying a second high molecular polymer having a hardness lower than that of the second high molecular polymer to form a second protective layer on the first surface. The second and subsequent car washing steps do not have at least the first high molecular polymer coating step, but have at least the second high molecular polymer coating step. This makes the first
The scratches, irregularities, etc. on the vehicle surface are healed by the first protective coating film formed in the first polymer coating step of the second car wash, and formed in the second polymer coating step. By removing and reforming the second surface protective coating, it is possible to completely remove stains on the vehicle surface without damaging the vehicle surface.

It should be noted that, as contaminants and the like that adhere to the vehicle surface during driving of the vehicle adhere only to the upper surface of the second layer or other coating surface protective coating, compared to the case where wax or the like is applied, car washing work of the vehicle Can be facilitated and made more efficient. Further, in the present invention, since the application of the first and second high molecular weight polymers is performed with water left on the vehicle surface, a smooth coating surface protective film can be easily formed by utilizing the lubricity of water. . Also, in this case, compared to the conventional case of applying wax or the like, polishing work and drying work are unnecessary,
The car washing work can be facilitated and made more efficient.

[Brief description of drawings]

FIG. 1 is a block diagram illustrating a car wash method according to the present invention, in which (a) shows a first car wash step and (b) shows a second and subsequent car wash steps.

FIG. 2 is a cross-sectional view of a vehicle surface after a car wash.

FIG. 3 is a block diagram illustrating a conventional car wash method.

FIG. 4 is a block diagram showing a mechanism of roughening of a coated surface according to a conventional car wash method.

[Explanation of symbols]

1 ... Painted part, 1a ... Painted surface, 2 ... Skin metal, A ... 1st
Cleaning step, B ... oil removal step, C ... first high molecular polymer coating step, D ... second high molecular polymer coating step, E ... second cleaning step.

Claims (4)

[Claims] 1. A first car washing step comprises: (a) a first washing step for removing water-soluble stains on the vehicle surface; and (b) a non-water-soluble vehicle surface after the first washing step. A second cleaning step for removing the volatile dirt, and (c) a first cleaning step on the vehicle surface after the second cleaning step.
The first high molecular polymer applying step of applying the high molecular polymer of 1) to form a first surface protective coating on the vehicle surface, and (d) after the first high molecular polymer applying step. , A second high molecular polymer having a hardness lower than that of the first high molecular polymer is applied to the vehicle surface to form a second protective layer on the first protective layer. And a second high molecular polymer applying step, wherein the second and subsequent car washing steps do not include at least the first high molecular polymer applying step,
A car washing method comprising at least the second high molecular polymer coating step. 2. Coating of the first high molecular polymer in the first high molecular polymer coating step, and coating of the second high molecular polymer in the second high molecular polymer coating step. The method for car washing according to claim 1, wherein the step is performed with water left on the vehicle surface. 3. The first car wash step and the second and subsequent car wash steps are provided with a third wash step for finally washing away the excess first or second polymer or the like with water. The car wash method according to claim 1, wherein 4. The first cleaning step of (a) above is a step of removing water-soluble dirt on the vehicle surface using water and a surfactant, and the first cleaning step of (b) above. 2. The car washing method according to claim 1, wherein the step is a step of removing oily stains on the vehicle surface by using an oil removing agent obtained by mixing an ultrafine particle compound with a penetrant or a surfactant and water.