JPH06171433A - Display of external color of vehicle - Google Patents

Abstract

PURPOSE:To provide a display method of external color of a vehicle which loses its external monotonousness as a color and a pattern applied on the vehicle change by temperature. CONSTITUTION:A display method of external color of a vehicle changing a color and a pattern by change of temperature by applying the color and the pattern 13 on the external surface of the vehicle by coating of a heat sensitive coating 3 and adhesion of a heat sensitive film 4.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of displaying appearance colors in vehicles such as passenger cars, trucks, mobile cranes, tractors and trains.

[0002]

2. Description of the Related Art Conventionally, a body color is expressed in various colors on a vehicle. White, black, and yellow are used for passenger cars, yellow for work vehicles such as lorries, cranes, and tractors, and green for trains. Is common. In addition, pictorial patterns, characters, symbols, etc. are often attached so that they can be seen on the side.

Conventionally, such colors and patterns are expressed by a paint, and the main purpose thereof is to prevent rust and ensure aesthetic appearance, and characters and marks are expressed as advertisements. However, the color or pattern attached to the vehicle is fixed and does not change.

[0004]

Although the conventional method of expressing the appearance color in the vehicle has succeeded in terms of preventing rust by the paint and ensuring the aesthetic appearance, the color is constant, so that it is time-consuming. From that perspective, it was unavoidable that I would get tired of it.

Even when a pattern or the like is represented by color,
Since the pattern etc. did not change at all, I felt monotonous from an aesthetic point of view. Moreover, even if the advertisement was made using characters or marks, the effect could not be expected so much because it did not draw much attention.

The present invention has been made in view of the above circumstances.
It is an object of the present invention to provide a method of expressing an appearance color in a vehicle in which the color or pattern attached to the vehicle changes depending on the temperature, so that the appearance is monotonous.

In order to achieve the above object, the present invention is a vehicle in which a color or pattern is applied to the outer surface of the vehicle by applying a temperature-indicating paint or attaching a temperature-indicating film, and the color or pattern is changed by a change in temperature. The method of expressing the appearance color in FIG.

[0008]

[Function] The outer surface of the vehicle, that is, the temperature of the body, wheels, bumpers, etc., is affected by various conditions such as outside air temperature, sunlight, shade, rainfall, engine temperature, tire friction heat, etc. Change. The color or pattern represented by the temperature-indicating paint or the temperature-indicating film on the outer surface of the vehicle changes in response to this temperature change.

When the color or pattern on the outer surface of the vehicle changes, it can be a clue to know the temperature as the cause of the change, and the change allows the vehicle to be seen with a new feeling. Also, if the change has a taste, the viewer is invited to laugh and stimulates playfulness.

The manner of changing the color or the pattern includes a change in the color, a change in the color of the pattern, a change in the pattern, and a change between the pattern and the color. Further, in this specification, the pattern includes characters, symbols, marks and the like.

[0011]

EXAMPLES Some typical examples of the passenger car 1 shown in FIG. 1 will be described below.
In most cases, it can be carried out on other vehicles such as tractors and trains as well.

1) As one embodiment, first, there is a case where the entire surface of the body of the passenger car 1 is coated with the temperature indicating paint 3. FIG. 2 shows the cross-sectional shape of the body wall 5. The rust preventive paint 7 and the white base paint 8 are applied to the body wall 5, and then the temperature indicating paint 3 is applied thereon.

The temperature-indicating paint is a pigment that is a compound that exhibits a distinct color change at a specific temperature or a compound whose state changes by dissolution. This includes irreversible thermochromic paints that utilize irreversible color changes associated with thermal decomposition of compounds, reversible thermochromic paints that utilize compound discoloration associated with the transition of the crystal form of compounds, and the dissolution of compounds. There are three types of melt-type temperature-indicating paints that utilize state changes, but in this case, reversible temperature-indicating paints that naturally change color with temperature are used.

As a thermochromic pigment for a reversible thermochromic paint, Ag is used.
₂ HgI ₄ (50 ° C), Cu ₂ HgI ₄ (70 ° C), Ag ₂
HgI ₄ —Cu ₂ HgI ₄ (35 to 70 ° C.) and the like. Thus, the inorganic compound represented by Me [HgI ₄ ] is generally used, but recently, a cholesteric liquid crystal or a kind of organic dye compound in which an electron donor and an acceptor are combined is also used as a compound temperature indicating material. Any of these may be used.

In the case of cholesteric liquid crystal, it reacts sensitively to changes in external heat, and black → brown →
There are various color changes such as green → blue → purple changing, and when the temperature decreases, it returns to the original color in the reverse order, so there are various colors of the body. Can be changed.

Generally, as an organic reversible temperature indicating material,
Electron-donating color-forming compounds that determine color (diallylphthalides, polyamylcarbinols, etc.), electron-accepting compounds (phenol, carboxylic acids, etc.) that determine color density, and solvent-based compounds that determine discoloration temperature (alcohol,
Toor, etc.) is used.

In the case of this example (FIG. 2), crystal violet lactone was used as the electron-donating color compound, bisphenol was used as the electron-accepting compound, and dodecylbenzene-acetophenone was used as the solvent compound.
The color was changed to colorless at a high temperature and blue at a low temperature with a boundary of 12 ° C. (two-color change of white and blue).

Since the color change temperature of the cholesteric liquid crystal system is usually in the range of 0 to 25 ° C., it is suitable for use in temperature change in the normal temperature range. Also, for example, in the crystal violet lactone-donor system, the discoloration temperature is 5,
It has a temperature of 12,47 ° C.

2) Next, a pattern is shown on a part of the passenger car 1,
FIG. 1 shows a case where the color is changed and a lion pattern 13 is displayed on the door. This pattern can be variously changed by the temperature-indicating paint. For example,
The change is black → brown → red due to the rise in temperature.

3) Next, on the hood of the passenger car 1,
The temperature indicating film 4 is attached, and the picture pattern 13a shown on the temperature indicating film 4 is changed (FIGS. 1 and 3). In this case, the engine temperature has the greatest effect on the change.

In the case of this embodiment, the film 4a
Two kinds of temperature-indicating paints are applied to the lower surface of the puppet 13a at 40 ° C. or below, and the butterfly 13b above that. For example, a red thermochromic paint that becomes colorless below 40 ° C. represents butterfly 13a, and a black thermochromic paint that becomes colorless at a temperature above 40 ° C. represents pupa 13a.

Another example of the temperature indicating film is a polyolefin film exhibiting reversible thermochromic property.
This is a film prepared by dissolving the above-mentioned electron-donating color-forming compound, electron-accepting compound, and solvent-based compound in a polyolefin resin and mixing them uniformly.

4) In FIG. 4, such temperature indicating films 4a, 4b, 4c are attached to the pressure sensitive adhesive sheet 15 so that the outside air temperature can be known, which is attached to the windshield or the like of the passenger car 1. Suitable for The temperature range is displayed on the right of each temperature indicating film.

5) FIG. 5 shows a pattern 13 consisting of a number of circles having the same center on a circular adhesive sheet 17, which is represented by a temperature-indicating paint.
It is interesting to see the spread of temperature.

[0025]

As described above, according to the present invention, the color or pattern displayed on the outer surface of the vehicle changes under the influence of the outside temperature, the solar radiation, etc. People will not get bored,
It is perceived as a change due to time or season, such as the difference between morning and daytime, the difference between summer and winter, and it appears in vehicles that are closely related to daily life and work. Therefore, the brain is always stimulated, and there is an excellent effect that the life can be healthyly tensioned.

In particular, when the change in color or pattern is elaborate, the playfulness is stimulated, and the effect is not only remarkable, but it also provides a topic of mind-to-heart communication.

Further, by applying the advertisement with characters or marks to the change of color or catchphrase, the advertisement effect can be enhanced and various effects can be exhibited.

[Brief description of drawings]

FIG. 1 is a perspective view of a passenger car shown for explaining some embodiments of the present invention.

FIG. 2 is a cross-sectional explanatory view of a body wall showing an embodiment of the passenger car shown in FIG.

FIG. 3 is an explanatory view of a pattern change of a temperature indicating film showing another embodiment of the passenger car of FIG.

FIG. 4 is an explanatory diagram showing another embodiment.

FIG. 5 is an explanatory diagram showing another embodiment.

[Explanation of symbols]

 1 Passenger car as a vehicle 3 Indicating paint 4,4a, 4b, 4c Indicating film 13 Pattern

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Claims (1)

[Claims] 1. An appearance color expression in a vehicle characterized in that a color or pattern is applied to the outer surface of the vehicle by applying a temperature-indicating paint or a temperature-indicating film, and the color or pattern is changed by a change in temperature. Method.