JP2625634B2 - How to apply strippable paint - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of applying a liquid strippable paint to a finished product.

[0002]

2. Description of the Related Art Conventionally, when an automobile that has passed a completion inspection process is shipped, in order to prevent dust and the like from adhering to the painted surface of the automobile, a liquid anticorrosive wax is applied to the painted surface to form a protective film. Had formed.

However, recently, from the viewpoint of reducing the load of the wax removal work at the shipping destination and protecting the environment, for example, as described in JP-A-3-267171,
A paint film protection method that temporarily protects the painted surface of a completed car by applying a vacuum on a plastic film having a removable pressure-sensitive adhesive on the painted surface of the completed car and covering the car body. Are known.

[0004] Also, for small parts, strippable paint is applied to each small part. Strip the painted surface of large painted products such as automobiles.
A method of applying a paintable paint and forming a coating film is disclosed in
This technique is also referred to in JP-A-4-313366.
The technique is strippable paint applied to the surface of automobiles etc.
This is a technique that specifies the composition and ratio of

Also, a method of applying strippable paint
Japanese Patent Application Laid-Open No. 62-95178 is disclosed.
This technology is used for stripping resin bumpers for automobiles.
Clean bumper surface by applying paint paint
After that, apply the strippable paint, dry,
Fusing along the parting line between painted and unpainted surfaces
Remove the resin coating, plasma treat the surface, and then paint
Is a technology to peel off the dried Noto resin coating
Eliminate manual work when applying partial paint for automotive bumpers
The purpose is to:

[0006]

However, when the vehicle body is covered with a plastic film, the protective film covers the entire vehicle, so that the protective film must be adhered to a part that does not need to be protected, such as a window glass. Therefore, there is a problem that the cost increases.

[0007] When using strippable paint, it is possible to apply only the portion to be protected, but if the target object is large, such as the entire automobile, unevenness of the protective film due to, for example, uneven drying. There is a problem in that the protective film is broken due to rust or adherence.

[0008] Further, before applying the strippable paint to the painted surface of the finished vehicle, if the applied portion is wet by rain or the like, the formation of the protective film by the strippable paint is hindered, and the decrease in the surface temperature causes the coated surface to become unpainted. However, there is a problem that a protective film is not formed on the substrate.

The present invention has been made in view of the above-mentioned problems of the prior art, and an object of the present invention is to reliably apply a strippable paint to a painted surface of a finished painted product. An object of the present invention is to provide a method of applying a strippable paint that can be performed.

[0010]

In order to solve the above-mentioned problems SUMMARY OF THE INVENTION The present invention is directed to a method of applying a stripper Tsu Bull paint a large painting finished product such as an automobile body, the coating method
Is a rinsing process that cleans the surface of automobile bodies with warm water
And the washing step is performed continuously, and the washing step is performed downstream of the washing step.
Draining step performed by hot air,
Process that is performed continuously to the process and is performed downstream of the draining process.
A step of applying a trippable paint,
Stripper coating process,
Drying process performed downstream of the paint application process
It is characterized by becoming.

[0011]

[Action] Rainwater and dust attached to the painted surface of the painted product are washed away in the water washing process before the strippable paint is applied, and in the water washing process , washing with warm water is performed.
Cleaning can be performed while maintaining the surface temperature of the finished product appropriately.
Draining with hot air in the draining process after the washing process
So the water-washed painted surface is dried efficiently and
Immediately before applying paintable paint, it is optimally cleaned for application.
And clean, the finished product with the appropriate surface temperature is obtained,
After that, the stripper bleed on the surface of the coated product in the optimum condition for coating.
Int application can be performed.

[0012]

An embodiment of the present invention will be described with reference to the accompanying drawings. FIG. 1 is a configuration explanatory view for carrying out a method of applying a strippable paint according to the present invention.

A process for applying a strippable paint to a painted surface of a painted vehicle to form a protective film is shown in FIG.
As shown in FIG. First, wash the painted car in the washing process 1
I do. In the washing process, use a shower-type car wash device to prevent injury.
Use to do. Washing water used in the washing process uses warm water
I have. Washing with warm water causes the paint to adhere to the finished car surface.
The removal of rainwater and dust is done effectively and efficiently.

Painted vehicle washed with warm water in washing process 1
Is a next draining process performed by the transport device 10 shown by an arrow in FIG.
It is sent to 2. In the draining process 2, use an air blow device.
Drain and dry with hot air. Before draining and drying
Washing with warm water in the water washing process 1 of the process
The painted surface of the adult car is kept at an appropriate temperature and
Draining and drying with air can be performed effectively and efficiently
it can.

[0015] The coating is completed after the draining step 2 using hot air.
The optimal surface temperature of the car is 10-25 ° C.
Rinse step 1 with hot spring, water with hot air
In the cutting step 2, an optimum coating surface temperature is obtained. Above
Constructs pretreatment step 3 for strippable paint application
You. In this way, the strippable paint
Obtain a finished painted car with a clean painted surface that is optimal for fabrics
Can be.

For example, in the case of a 2000 cc class automobile, when the paint surface and the ambient temperature are both -5 ° C,
Applying hot water at 0 ° C. to the painted surface at a rate of 1.5 liters / minute resulted in a painted surface temperature of 18 ° C. ± 2 ° C. in 15 seconds.

Washing and drying completed after draining process 2
Transport the vehicle to the downstream painting booth 4 as shown by the arrow in FIG.
It is sent by the device 10. Stripper rubble at painting booth 4
And apply a strippable paint in this process.
The fabric step 6 is configured.

The strippable pane in the coating step 6
As described above, the painted surface of the finished vehicle is
Water washing process 1 and hot water draining process 2
Paint surface is clean and strippable
Since the surface temperature is optimal for applying paint,
Appropriate strippable paint is applied.

The structure of the coating booth is the same as that of a normal coating booth.
When using a wrap guard manufactured by Kansai Paint Co., Ltd., it is desirable that the booth temperature is 10 to 25 ° C. and the booth humidity is 50 to 80%. If the temperature and the humidity are out of the ranges, the protective film formed of the water-soluble strippable paint may not be formed. The application means is not particularly limited, and brush coating, roller brush coating, a spray gun, or the like is used.

In the coating step 6, the strippable paint is applied.
The completed car with the cloth completed is transported as shown by the arrow in FIG.
The setting booth 5 is sent to the setting booth 5 in the apparatus 10, and the setting booth 5 is usually used at an ambient temperature of 15 ° to 30 ° C. and a humidity of 50 to 80%.

Strippable from setting booth 5
After the paint has been applied, the completed car is dried as the next process.
In the drying step 9, as shown by the arrow in FIG.
And dry the applied strippable paint.
U.

The drying step 9 includes an upstream preliminary drying furnace 7 and a downstream
And a main drying furnace 8 and a preliminary drying furnace 7 on the upstream side.
After drying, main drying is performed in a downstream main drying furnace 8.

As the preliminary drying oven 7, an infrared drying oven is preferably used to promote drying from the inside of the protective film. In particular, it is preferable to apply infrared rays having a wavelength of 2 to 4 μm to the water-soluble strippable paint for 30 to 60 seconds. The reason for promoting the drying from the inside of the protective film in this way is that when the drying starts from the surface of the protective film, a hole or a crack occurs on the surface of the protective film due to the solvent or water generated from the inside,
This is because the protection performance is reduced.

As the drying furnace 8, a hot-air drying furnace is usually used to uniformly heat the whole object to be coated. Also,
The drying temperature is desirably 60 to 90 ° C. from the viewpoint of protecting accessory parts such as various electric components as a drying oven of the completed vehicle.

[0025]

As described above, according to the present invention, dust and the like adhering to the painted surface of the completed vehicle are continuously washed during storage until shipment, and the strippable paint is appropriately applied to the painted surface of the completed vehicle. And it can be applied reliably.

In particular, the present invention relates to a strippable paint.
The coating process is performed by hot water washing process and hot air
After applying the strippable paint through the cutting process,
Dry in the drying process through the setting process as necessary
To form a protective film with strippable paint.
As we finished, we applied strippable paint on the finished car
Can be performed continuously from washing to application and drying.
Effective and efficient application of strippable paint on adult vehicles
Can be done

The present invention also provides a washing step using hot water,
Applying strippable paint through the water draining process
Upstream of the application of the strippable paint, so do the cloth
Cleaning and drying process for the application of strippable paint.
The temperature of the painted surface of the finished car can be obtained
Efficient and effective application of riptable paint
To form an appropriate protective film on the painted surface of the finished vehicle.
It can be done, and as described above, it can be washed with hot water
Drying with hot air after cleaning is efficient and effective
As a whole, the strippable paint application process
Efficient application of strippable paint can be performed.

[Brief description of the drawings]

FIG. 1 is a configuration explanatory view for carrying out a method of applying a strippable paint according to the present invention.

[Explanation of symbols]

1 ... water washing process, 2 ... draining process, 6 ... coating process, 9
... Drying process.

Claims (1)

(57) [Claims] To [claim 1] large painted finished product such as an automobile body there is provided a method of applying a stripper Tsu Bull paint, coating
The method is a rinsing step of washing the surface of an automobile body or the like with warm water, and is performed continuously with the rinsing step.
The draining step is performed by hot air, and is performed continuously with the draining step, and is performed downstream of the draining step.
The step of applying the strippable paint, and the step of applying the strippable paint.
Performed downstream of the strippable paint application process.
That the drying process and a method of coating the strippable paint, characterized in that it consists of.