JP2607114Y2 - Resin wheel cap or center emblem - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a resin wheel cap in which a transfer foil on which a pattern is formed is integrally formed with a transparent base film at the same time as resin molding, and a transfer cap is applied to the wheel cap.

[0002]

2. Description of the Related Art The applicant of the present invention has applied for an emblem in which a transfer foil is integrally formed on the surface of a center emblem of a wheel cap by in-mold transfer processing in Japanese Patent Application Laid-Open No. 4-71943. As shown in FIG. 5, the conventional base film 4a is used only as a carrier film for transferring the transfer foil 4 during transfer processing. And was wound up at the bottom of the foil feeder. Hereinafter, the configuration of the center emblem in the conventional wheel cap will be described.

FIGS. 3 and 4 are longitudinal sectional views of a conventional center emblem 1 for a wheel cap. The center emblem 1 includes an injection molding machine 5 and a transfer foil feeding device 11 shown in FIG. Is painted on the surface at the same time as the injection molding. The emblem 1 is made of polypropylene, AB
A resin layer 1a formed of a resin material such as S, polycarbonate, modified PPO, and a transfer foil 4 integrated with the surface of the resin layer 1a by in-mold transfer processing (however, a base film 4a described later is formed by in-mold transfer). Removed after processing).

A transfer foil for the conventional emblem 1 is composed of a base film 4a shown as a transfer foil 4 in FIG. 5, a release layer 4b made of a resin material having excellent releasability from the base film 4a, and an aluminum-deposited surface. The transfer foil 4 is composed of a glittering film as a material or a colored layer 4c on which a pattern is applied by printing, and an adhesive layer 4d welded to the resin layer 1. The transfer foil 4 is formed by an in-mold molding apparatus 5 shown in FIG. It is molded integrally. That is, the transfer foil 4 set in the foil feeder 11 is sandwiched between the dies 9, 10 attached to the fixed platen 7 and the movable plate 8, respectively, and then the resin 6 of the molding machine is supplied into the dies. Thus, the resin layer 1a of the emblem and the transfer foil 4 are integrated. When the molds 9 and 10 are opened, the base film 4a of the transfer foil is peeled off.

[0005]

The center emblem 1 of a wheel cap of this kind is mounted on the exterior of the vehicle, in particular on the central outer surface of the wheel, which is susceptible to damage by pebble jumps and damage by curbs. However, in-mold transfer technology has been gradually applied from home appliances, and has reached a level where there is no problem with regard to abrasion resistance and scratch resistance when used for home appliances and vehicle interiors. , Because it is possible to drastically reduce costs,
It has recently become widespread as a surface treatment method that replaces conventional hot stamping and silk printing applied as secondary processing of molded articles.

However, when used as a surface coating for a wheel cap, the risk of damage due to flying pebbles always accompanies it. A high level of abrasion resistance and abrasion resistance is required. After the in-mold transfer, a base film 4 as a carrier film is formed.
After removal of a, the actual thickness of the transfer foil 4 is at most 1
When the colored layer 4c is a vapor-deposited film made of aluminum as a base material, the vapor-deposited portion is damaged, and the moisture penetrating therefrom is removed. There was a problem of corrosion. In order to solve this problem, it is conceivable to add a hard coat layer on the surface side of the layer constituting the transfer foil 4, but even in this case, the thickness can be at most only 2 to 3 μm, and like a wheel cap, If the car is washed several times during use or is subjected to pebble flying, there is a problem in its durability.

Therefore, conventionally, after the base film 4a is peeled off during the in-mold transfer processing, the base film 4a is protected by providing a clear coating film 3 on the transfer foil 4 as shown in FIG. It is prevented from reaching the colored layer 4c of the foil. However, since the clear coating film 3 is performed in a post-process after performing the in-mold transfer processing, the cost is increased due to an increase in man-hours.
Problems in appearance quality such as dust and air bubbles have occurred.

[0008]

The present invention has the above problems.
In order to solve the problem, the transfer foil is
The transfer foil is sent to the mold and the transfer foil is cut by the mold.
And resin wheel cap or center end
When performing in-mold transfer processing of blem 1, transfer
Conventional peeling so as not to separate the base film 2a of the foil 2.
The primer layer 2b is formed instead of the layer 4b,
Protection by integral molding including the film 2a
Wheel cap or center edge that does not require layers
Emblem. That is, the tree of the present invention
The fat wheel cap or center emblem is
The transfer foil is fed into the mold by a suitable winding device.
The transfer foil is cut out by a mold and a resin
Inject the ear cap or center emblem 1
When performing the transfer process,
Wheel cap or center emblem tree
A transparent base film 2a and a ply
Transfer foil 2 comprising a mer layer 2b, a colored layer 2c and an adhesive layer 2d
Is cut by a mold, and a base film 2a of a transfer foil is cut.
Molding by in-mold transfer without peeling
Thereby, the pattern was transferred and painted on the surface of the resin layer 1a.
It is characterized by the following.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a center emblem 1 of a wheel cap according to an embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a longitudinal sectional side view showing one embodiment of the present invention. Wheel cap center emblem 1
Is polypropylene, ABS, polycarbonate, modified P
It comprises a resin layer 1a formed of a resin material such as PO, and a transfer foil 2 integrated on the surface of the resin layer 1a by in-mold transfer processing. And this transfer foil 2
Unlike the conventional product, is composed of a base film 2a having a transparent film thickness of 50 to 200 μm, a primer layer 2b, a coloring layer 2c, and an adhesive layer 2d. Further, as a material of the base film 2a, transparent polymethyl methacrylate, polycarbonate, or polyethylene terephthalate may be used. However, in the present invention, since it serves as a protective layer, heat resistance, Polyethylene terephthalate, which has excellent chemical resistance and abrasion resistance, and has good followability to irregular shapes. In addition, the primer layer 2
For b, a film having good adhesiveness to the base film 2a is used. Also, in the center emblem according to the present invention, the transfer foil 2 is formed integrally with the conventional in-mold by the same transfer means. Although the center emblem 1 has been described in the above embodiment, the same applies to a wheel cap (not shown).

[0010]

According to the present invention, (1) the base film 2a of the transfer foil (film thickness 50 to 200 μm);
m) is transferred to the molded product side, and is present on the outer surface of the center emblem 1a. Therefore, even if pebbles are hit, the scratches do not reach the aluminum vapor-deposited layer of the transfer foil. It is possible to prevent the transfer foil from peeling off and causing a corrosion phenomenon of the aluminum deposition layer. (2) By using transparent polyethylene terephthalate as the material of the base film 2a, it is possible to ensure excellent chemical resistance and abrasion resistance, and to follow the irregular shape. (3) The labor of disposing of the base film 2a after the in-mold transfer is eliminated, and the clear coating (post-process) conventionally performed after molding can be abolished, thereby reducing man-hours and cost. The appearance quality of dust, dirt and air bubbles can be improved.

[0011]

As will be understood from the above description, the thick base film 2a is formed on the wheel cap surface.
Since the base film 2a is integrally molded and the base film 2a is transferred to the molded product side, strict specifications such as abrasion resistance, abrasion resistance, chemical resistance, and heat resistance against pebbles are required as vehicle exterior parts. Even in this case, the base film 2a protects the layers under the base film 2a, so that the reliability as an in-mold transfer wheel cap can be remarkably improved.
The man-hour and cost can be reduced, and the practical effect is extremely large.

[Brief description of the drawings]

FIG. 1 is a vertical side view of the present invention.

FIG. 2 is an enlarged vertical sectional side view of the transfer foil of the present invention.

FIG. 3 is a vertical sectional side view of a conventional product.

FIG. 4 is a vertical sectional side view of a conventional product.

FIG. 5 is an enlarged vertical sectional side view of a conventional transfer foil.

FIG. 6 is an in-mold molding apparatus.

[Explanation of symbols]

1 Center emblem of wheel cap. 1a
Resin layer. 2 Transfer foil. 2a Base film. 2b Primer layer. 2c Colored layer. 2d adhesive layer. 3 Clear coating film. 4 Transfer foil. 4a Base film. 4b Release layer. 4c Colored layer. 4d adhesive layer. 5 Injection molding machine. 6 Resin. 7 Fixed board. 8 Movable board. 9 Mold. 10 Mold. 11 Foil feeder.

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) G09F 21/04 G09F 3/02-3/10 B60B 7/06

Claims (1)

(57) [Scope of request for utility model registration] 1. A transfer foil is formed in a mold by an appropriate winding device.
When this transfer foil is cut out by a mold,
Both are resin wheel caps or center emblems
When performing in-mold transfer processing on the
Wheel cap or center
A transparent base film is formed on the surface of the resin layer 1a of the emblem.
2a, the primer layer 2b, the coloring layer 2c, and the adhesive layer 2d.
The transfer foil 2 becomes a base of the transfer foil
In-mold transfer without peeling film 2a
By integrally molding, the pattern is transferred to the surface of the resin layer 1a.
A resin-made wheel cap characterized by being painted
Or a center emblem.