JPH09240386A - Imitated wooden pattern panel of resin for vehicle ornamentation - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve an anti-scar characteristic or anti-weather characteristic, improve a design characteristic and further enable a low cost to be attained by a method wherein a transfer printing technology is applied to a resin molded product for a vehicle ornamentation. SOLUTION: An imitation wooden pattern panel for a vehicle ornamentation is constructed such that either a front surface or a rear surface of a main body of a resin layer 1a of a resin molded component for a vehicle ornamentation has a transfer foil 2 in which a hard coated layer, an anchor layer, a coloring layer and an adhesive layer are integrally formed on a base film in sequence with hardening resin by an inmold forming operation.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to in-mold molding capable of painting at the same time as resin molding, that is, a transfer foil comprising a hard coat layer, a pattern layer, an adhesive layer and the like is formed on a base film in a molding die. It is sandwiched, resin is injected into the cavity and cooled to obtain a resin molded product. At the same time, the transfer foil is adhered to the surface of the molded product, then the base film is peeled off and the transfer layer is transferred to the surface of the transfer target. According to the method of decorating, a pseudo wood grain panel for vehicle interior, in which a design is transferred and painted on the front surface or the back surface of the molded product simultaneously with resin molding.

[0002]

2. Description of the Related Art Conventionally, the following method has been used to paint a desired pattern on a resin component for vehicle interior. In the first method, a resin-molded resin component for vehicle interior is painted and then baked and dried.

The second method is to transfer a design by pressing a resin-molded resin component for vehicle interior on a pattern ink layer which is floated in a water tank in advance, and thereafter to improve weather resistance and scratch resistance. The so-called hydraulic transfer method, in which clear coating is performed, has been used. Also,
In the third method, after performing integral molding by in-mold molding, clear coating is performed to improve weather resistance and scratch resistance. Further, the fourth method is a decorating method by in-mold molding, but in order to improve weather resistance and scratch resistance, the base film is integrally molded together, and an insert method in which trimming is performed after molding is used. It was

[0004]

However, each of the above-mentioned methods has the following drawbacks.
That is, in the first coating method, it is very difficult to express a fine geometric pattern such as wood grain, and the more multicolored designs, the more coating steps are required, resulting in a very high cost.

In the second hydraulic transfer method, as shown in FIG. 3, the number of steps is very large and the cost is very high. Also, when the clear coating is applied after the third in-mold molding, the cost increases because of the coating step. Further, in the fourth insert method, since the base film is molded together with the base film, there is a problem in that trimming is necessary after the molding and the cost becomes high.

[0006]

The present invention solves any of the problems in the conventional methods by applying the transfer printing technique to the resin molded parts for vehicle interiors, and at the same time, the scratch resistance and the weather resistance are improved. It is an object of the present invention to provide a pseudo wood grain panel for a vehicle interior, which is improved, and is capable of improving the design and reducing the cost.

That is, the resin-made pseudo wood grain panel for vehicle interior according to the present invention has a hard coat layer 2b made of a curable resin on a base film 2a on the front surface or the back surface of the resin layer 1a main body of the resin molded component for vehicle interior. Anchor layer 2
Transfer foil 2 in which c, colored layer 2d, and adhesive layer 2e are sequentially formed
Is integrally molded by in-mold molding.

The hardenable resin for the hard coat layer 2b is formed of a resin whose main component is any of a photohardenable resin, a radiation hardenable resin and a thermosetting resin. Further, the hard coat layer 2b is formed of a resin containing an ultraviolet absorber. Further, the hard coat layer 2b is formed of a resin containing a WAX agent.

[0009]

DETAILED DESCRIPTION OF THE INVENTION An embodiment of the present invention will be described in detail below with reference to the drawings. FIG. 1 is a longitudinal section of the present invention in which a surface of a resin component for vehicle interior is painted simultaneously with injection molding by an in-mold molding device (not shown) having an injection molding machine and a transfer foil feeding device. It is a side view.
The vehicle interior resin component 1 includes a resin layer 1a formed of a hard resin such as acrylic, polypropylene, ABS, polycarbonate, and modified PPO, or a soft resin material such as softened acrylic or ionomer resin, and the resin layer 1a. Transfer foil 2 integrated on the surface by in-mold molding
(However, the base film 2a is removed after the in-mold forming process.).

Then, as shown in FIG.
Is a base film 2a for continuously feeding the transfer foil during the in-mold forming process, a hard coat layer 2b and an anchor layer 2c made of a cured resin, a colored layer 2d with a painted surface, It is composed of an adhesive layer 2e welded to the resin layer 1a.

[0011]

Since the resin-made pseudo wood grain panel for vehicle interior according to the present invention has a hard coat layer, which is a part of the transfer layer, made of a curable resin, its surface scratch resistance is improved. However, clear coating in the post process was an essential requirement, but this can be omitted. Further, by using a resin containing an ultraviolet absorber or a WAX agent in the release layer, the weather resistance and the scratch resistance of the surface can be remarkably improved.

Next, an embodiment of the present invention will be described.
A hard coat layer having a thickness of 25 to 50 μm and made of a thermosetting acrylic resin on a base film made of a polyester resin having a releasability and further containing a UV absorber and a WAX agent, having a thickness of 2 to 3 μm. Anchor layer having a thickness of 1 to 2 μm made of acrylic resin, a colored layer having a thickness of 1 to 2 μm made of acrylic vinyl copolymer resin, and a thickness of 1 to 2 using a binder such as acrylic resin or styrene resin.
A transfer layer composed of an adhesive layer of μm was formed to obtain a transfer foil.
Then, the transfer foil is fed into a vehicle interior resin component molding die, and after injection molding, the base film is peeled off to integrally mold the surface of the vehicle interior resin component by in-mold molding. In addition, a resin component for vehicle interior having a transfer layer attached to the surface thereof was obtained. When the surface strength of this resin component for vehicle interior was measured, the pencil hardness was 3H. In addition, 50g / of grade 0 steel wool
When it was rubbed with a cm ^{2 layer,} it was not scratched.

[0013]

EFFECTS OF THE INVENTION Since the resin-made decorative component for vehicle interior and the method of manufacturing the same of the present invention are constructed and operate as described above, they have the following effects. In the present invention, the hard coat layer, which is a part of the transfer layer, is made of a curable resin, and if necessary, an ultraviolet absorber or a WAX agent is further added to the hard coat layer. It has wear resistance and weather resistance, and can exhibit excellent durability even under extremely severe conditions such as vehicle interior parts. Further, when a polymer absorbent is used as the ultraviolet absorbent, a large amount of active ingredient can be added, and the weather resistance is particularly improved.

[Brief description of drawings]

FIG. 1 is a longitudinal sectional side view showing one embodiment of the present invention.

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

FIG. 3 is a process diagram of a hydraulic transfer method. 1 Resin product decorative parts for vehicle interiors. 1a resin layer, 2
Transfer foil, 2a base film, 2b hard coat layer, 2c anchor layer, 2d coloring layer,
2e adhesive layer, 2f transfer layer.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Yuzo Nakamura 3 Mibu Hanai-cho, Mibu Hanai-cho, Nakagyo-ku, Kyoto-shi, Kyoto

Claims (5)

[Claims] 1. A base film 2a, a hard coat layer 2b made of a curable resin, an anchor layer 2c, a coloring layer 2d, and an adhesive layer on the front surface or the back surface of a resin layer 1a of a decorative component for vehicle interior formed by a resin material. Transfer foil 2 consisting of 2e
A resin-made pseudo wood grain panel for a vehicle interior, wherein a pattern is transferred and painted on the front surface or the back surface of the resin layer 1a by integrally molding by means of in-mold transfer. 2. The curable resin of the hard coat layer 2b is formed of a resin whose main component is any one of a photocurable resin, a radiation curable resin and a thermosetting resin. Pseudo wood grain panel made of resin for vehicle interior. 3. The resin-made pseudo wood grain panel for vehicle interior according to claim 1, wherein the hard coat layer 2b is formed of a resin containing an ultraviolet absorber. 4. The resin-made pseudo wood grain panel for vehicle interior according to claim 3, wherein the ultraviolet absorber is a polymeric ultraviolet absorber. 5. The resin-made pseudo wood grain panel for vehicle interior according to claim 1, wherein the hard coat layer 2b is formed of a resin containing a WAX agent.