JPH02137988A - Method for applying image to outer surface of outer-covering component part - Google Patents

Abstract

PURPOSE:To enhance the adhesion strength of end parts of an image pattern layer without deteriorating an outside appearance by a method wherein when an outer- covering component part is held by a support tool, the end parts of the outer-covering component part are projected from the support tool. CONSTITUTION:On the back faces of the front and rear end parts of a fairing 11 to be applied with an image pattern, protuberances 11a are formed. A support tool 17 is loaded on a receiving mount 19 in a vacuum, container 18, the fairing 11 is loaded on the support tool 17 so that the front and rear end parts thereof are set along cutouts 17a, and a base film F is heated by a heater 22 to be softened. The upper surface of the fairing 11 is brought into contact with the base film F, the internal pressure of a divided chamber 20 is raised, the base film F is brought into pressure contact with the outer surface of the fairing 11, whereby an image pattern layer 16 is bonded to the outer surface through an adhesive layer 15. Then, the base film F wraps round peripheral parts in the end parts of the fairing 11, and the image pattern layer 16 adheres to the back surfaces thereof and covers the surfaces of the cutouts 17a. The fairing 11 is taken out of the vacuum container 18, and the base film F is released. In this manner, the image pattern is transferred to the fairing 11, and the image pattern layer 16 is cut at the top ends of the protuberances 11a.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to the outer surface of exterior parts, such as fairings, side covers, or The present invention relates to a painting method suitable for painting the outer surface of a tank or the outer surface of a ship's hull parts.

[Prior art] Generally, stripes, marks, etc. (including letters) are painted on the outer surface of exterior parts such as motorcycle fairings to enhance the design effect. As a method of painting, for example, as shown in Japanese Patent Publication No. 56-45768, a thermoplastic film on which a pattern is printed and an adhesive is laminated is positioned and placed with respect to the exterior part, and then heated and softened. There is a known technique in which the film is then pressure-bonded to the outer surface of the exterior component, thereby painting the pattern on the outer surface of the exterior component while being covered by the film.

[Problems to be Solved by the Invention] However, in the above technique, since the film is left covering the design, the painting is done later. Since the fairing is closed by the fairing and the film protrudes from the periphery of the fairing, it is necessary to remove the portion covering the opening and the film protruding from the periphery. There were drawbacks such as.

Therefore, the present applicant previously disclosed in Japanese Patent Application No. 62-294709 a base film in which a pattern layer consisting of at least three layers, a release layer, an ink layer and an adhesive layer, is printed on the outer surface of an exterior component. After the picture layer is pressed against the exterior part, the base film is peeled off and the picture layer is transferred to the outer surface of the exterior part, and then the surface of the picture layer is subjected to a hardening treatment. I proposed a method.

By the way, when painting, at the edge of the exterior component, if the pattern layer wraps around the peripheral edge from the edge and covers the back side of the exterior component, the cut-off end of the pattern layer will be located on the back side of the exterior component. This is preferable because it does not impair the appearance and increases the adhesive strength of the edges.

According to the above-mentioned painting method, this is possible due to the flexibility of the base film, but if the flexibility is insufficient, this may not be achieved. It was desired to develop a method that covers the back side and adheres it.

[Means for Solving the Problems] In order to solve the above-mentioned problems, the present invention provides a method of applying a release layer, an ink layer, and an adhesive to the outer surface of the exterior component after supporting the back surface of the exterior component with a support. A base film printed with a pattern layer consisting of three layers is pressure-bonded with the pattern layer facing the exterior component, and then the base film is peeled off and the pattern layer is transferred to the outer surface of the exterior component. Thereafter, in the method for painting the outer surface of an exterior component, the surface of the pattern layer is subjected to a hardening treatment, and when the exterior component is supported by the support, an end of the exterior component is removed from the support. It is characterized by being in a protruding state.

[Function] According to the method for painting the outer surface of the exterior component of the present invention, the base film is pressure-bonded to the outer surface of the exterior component and the pattern layer printed on the base film is transferred to the outer surface of the exterior component, thereby painting the exterior component. Improves the accuracy of alignment between parts and patterns,
Furthermore, by peeling off the base film after transfer, it is possible to open the opening formed in the exterior component and remove the protruding portion from the peripheral edge of the exterior component at the same time, thereby simplifying the work.

In addition, when the HAS film is crimped onto the exterior component, the edge of the exterior component protrudes from the support, so the pattern layer wraps around the periphery of the edge of the exterior component and even covers the back side. Therefore, the cut-off end of the pattern is reliably located on the back side of the exterior component, so that the appearance is not impaired and the adhesive strength of the end of the pattern layer is increased.

[Example] Hereinafter, one embodiment of the present invention will be described based on the drawings.

Reference numeral 1 in FIG. 1 indicates a motorcycle equipped with exterior parts to which this embodiment is applied, including a body frame 2, a front fork 3 rotatably mounted on the front part of the body frame 2, A steering handle 4 attached to the upper end of the front fork 3, a front wheel 5 rotatably attached to the lower part of the front fork 3, a fork 6 rotatably attached to the rear of the vehicle body frame 2,
A rear wheel 7 is rotatably attached to the swinging end of the rear fork 6, an engine 8 is attached to approximately the center of the vehicle body frame 2, and a fuel tank 9 is attached to the upper part of the vehicle body frame 2. It includes a seat 10 attached to the vehicle body frame 2 at a rear position of the fuel tank 9, and a fairing 11 as an exterior component provided to cover the front, side, and rear upper portions of the vehicle body frame 2. The outer surface of this fairing 11 is painted by the method according to this embodiment.

The fairing 11 is made of synthetic resin such as ABS or AES, or painted metal such as steel plate or aluminum, and has an air tact 12 opened in a portion facing the side of the vehicle body frame 2. ing. Here, among resin-based paints, those having polarity and low drying temperature, such as urethane-based paints, are preferably used as the paint used for the coating.

The outer surface of the fairing 11 is decorated with stripes extending from front to back, and the method for applying the stripes will be described below.

First, the structure of the base film F used in this embodiment will be explained.

As shown in FIGS. 2 and 3, this base film F has a substantially rectangular shape, and has a release layer 13, an ink layer 14, and an adhesive layer on one surface (lower side in FIG. 2). 15 are sequentially laminated to form a pattern layer 16.

The base film F is made of vinyl chloride, AB, for example.
Thermoplastic resins such as S, fluorocarbon resin, polyethylene, polypropylene, polycarbonate, and composites thereof are used.

As the peeling layer 13, polyvinyl butyral, nitrocellulose, chlorinated rubber, etc. are used.

The ink layer 14 may be made of ordinary ink or ink that is better suited to the elongation of the base film F (as applicable).
An ink using an acrylic-vinyl chloride resin binder and pigments with good weather resistance is used.

As the adhesive layer 15, either a thermoplastic resin or a thermosetting resin can be used, but for example, when adhering to a resin or a painted surface on a resin, there are temperature restrictions and base film F. In terms of storage stability, thermoplastic resins, particularly urethane thermoplastic resins, are preferred.

On the other hand, the release layer 13, the ink layer 14, and the adhesive layer 15 are sequentially laminated on the base film F by printing means such as silk printing, gravure printing, barcode printing, knife coating, etc.

The base film F having the above structure is used for the fairing 1
1, and has a size that can cover the pattern layer 16.
is set to a length sufficient to cover the back surface side from the peripheral edge at the front and rear ends of the fairing 11.

In addition, in the fairing 11, as shown in FIG. 4, a protrusion 11a with a pointed tip is formed along the back surface of the front and rear ends to which the decoration is applied.

Next, a procedure for painting the outer surface of the fairing 11 using the base film F according to the method of this embodiment will be explained based on FIGS. 5 to 10.

First, a support shown at 17 in the figure is prepared. This support 1
The upper surface of the fairing 7 has a shape that follows the back surface of the fairing 11, and a notch 17a is formed in the upper surface corresponding to the front and rear ends of the fairing 11. Further, an air vent hole 17b facing this notch 17a is formed to penetrate toward the bottom surface.

Then, this support 17 is placed on a stand 19 inside the vacuum container 18.
Then, place the fairing 11 on the support 17 so that the front and rear ends are along the notch 17a. That is, the fairing 11 is supported by the support 17 with the front and rear ends protruding from the upper surface of the support 17.

On the other hand, the base film F on which the pattern layer 16 is printed is placed in the vacuum container 18 with the pattern layer 16 facing the outer surface of the fairing 11 and with the pattern and the fairing 11 aligned. Then, the inside of the vacuum container 18 is airtightly divided by the base film F.

Subsequently, after reducing the internal pressure of each divided chamber 20.21 formed in the vacuum container 18 by the base film F to the same vacuum pressure, the base film F is placed above the vacuum container 18. It is heated to an appropriate temperature by the provided heater 22 to soften it.

After that, the Uke raises the lifting mechanism 23 that supports the stand 19, and the Uke moves the support 17 and the fairing 1 together with the stand 19.
1 is raised to bring the upper surface of the fairing 11 into contact with the base film F.

Subsequently, by opening the divided chamber 20 on the side where the fairing IX is not disposed to the atmosphere and increasing its internal pressure, the base film F is applied to the outer surface of the fairing 11, as shown in FIG. The pattern layer 16 is adhered to the fairing 11 by the adhesive layer 15.

At this time, the fairing 1 supported by the support G
1 has a notch 17a formed in the support 17.
As shown in FIGS. 9 and 10, the base film F wraps around the peripheral edge of the end of the fairing 11, and the pattern layer 16 is attached to the back side of the base film F, as shown in FIGS. The surface of the notch 17a of the support 17 is covered.

Next, after this fairing 11 is taken out from the vacuum volume Sm18, the base film F is peeled off. In this state, as shown in FIG. 10, the pattern formed by the ink layer 14 is transferred to the outer surface of the fairing 11. When removing base film F, fairing 1
Since the portion of the base film F in contact with the tip of the protrusion 11a formed on the back surface of the end portion of the base film F is weak, the force that causes the pattern layer 16 to peel off is transmitted across this portion. The pattern layer 16 is cut at the tip of the protrusion 11a.

Therefore, the cut-off end of the pattern layer 16 is reliably located on the back side of the end of the fairing 11.

After such a removal operation of the base film F, the peeling layer 13 exposed on the fairing 11 is irradiated with ultraviolet rays using a high-pressure mercury lamp, a metallogen lamp, etc. to harden the peeling layer 13. Note that this curing treatment can also be performed by applying a clear coat to the surface without using an ultraviolet curable resin.

As a result, a hardened layer is formed on the surface of the pattern layer 16, making it possible to perform painting with high weather resistance and scratch resistance.
When applied to exterior parts such as the fairing 11 described above, which are exposed to adverse conditions such as being exposed to outside air, rain, mud, etc., the appearance can be expected to be maintained for a long period of time.

When the base film F is pressure-bonded to the fairing 11, the pattern layer 16 wraps around the periphery of the fairing 11 and even covers the back side, and as described above, the pattern layer 16 is separated from the edge. Part is fairing 1
1, the adhesive strength at the end of the pattern layer 16 is increased without damaging the appearance.

The present invention is not limited to the fairing 11 of a motorcycle l as in the above embodiment, but can also be applied to side covers and other exterior parts of motorcycles, and can also be applied to tricycles such as buggies,
It can also be applied to exterior parts of four-wheeled vehicles such as passenger cars, and even ships.

Furthermore, the method of press-bonding the base film F to the exterior component may be any method other than the method described above.

[Effects of the Invention] As explained above, according to the method for painting the outer surface of an exterior component of the present invention, after the back surface of the exterior component is supported by a support, at least a release layer and an ink layer are applied to the outer surface of the exterior component. A base film with a printed pattern layer consisting of three layers, ie, an adhesive layer and an adhesive layer, is pressure-bonded with the pattern layer facing the exterior component, and then the base film is peeled off and the pattern layer is placed on the outside of the exterior component. A method for painting the outer surface of an exterior component by transferring the pattern onto the surface and then subjecting the surface of the pattern layer to a hardening treatment, wherein when the exterior component is supported by the support tool, the edge of the exterior component is Since the feature is that it protrudes from the support, it is possible to paint with high precision at a set position on the exterior component, and also to straddle the discontinuous part formed on the exterior component. Even when attaching, the positional shift between the patterns between the ends of the discontinuous portion is suppressed to prevent the appearance from being impaired.

In addition, by one operation of peeling the base film,
When an opening is formed in an exterior part, it is possible to open the opening and remove the protruding part from the periphery, and painting can simplify the work, and in addition, painting can be done later. The weather resistance and scratch resistance of the surface of the pattern can be improved.

Furthermore, when crimping the base film to the exterior parts,
The pattern layer wraps around the peripheral edge at the end of the exterior part,
Furthermore, since the back side of the pattern is covered, the cut-off end of the pattern is reliably located on the back side of the exterior component, so that the appearance is not spoiled and the adhesive strength of the end of the pattern layer is increased.

[Brief explanation of the drawing]

FIG. 1 is a side view of a motorcycle to which an embodiment of the present invention is applied, FIG. 2 is a plan view of a base film used in the embodiment, and FIG. 3 is an enlarged longitudinal cross-sectional view showing its structure. Figure 4 is a perspective view of the back side of the fairing, Figures 5 to 8 are process explanatory diagrams of one embodiment, Figure 5 is its perspective view, Figures 6 to 8 are its side views, and Figure 9. And FIG. 10 is an enlarged sectional view of the main part of the process. ...Motorcycle, ...Fairing (exterior parts), ...Peeling layer, ...Ink layer, -Adhesive layer, ...Picture layer, Base film. 15... l 6 ・

Claims (1)

[Claims] After supporting the back surface of the exterior component with a support, a base film having a pattern layer consisting of at least three layers, a release layer, an ink layer, and an adhesive layer printed on the outer surface of the exterior component, is attached to the exterior component. The base film is then peeled off to transfer the pattern layer to the outer surface of the exterior component, and then the surface of the pattern layer is hardened to form the outer surface of the exterior component. In the painting method, when supporting the exterior component with the support,
A method for painting the outer surface of an exterior component, characterized in that an end of the exterior component is made to protrude from the support.