JP2000263585A - Molding foil-decorated article and production thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a molding foil-decorated article having an inconspicuous boundary on a design and having an attractive design formed thereto. SOLUTION: In a method for producing a molding foil-decorated article by arranging a pattern film 1 having a boundary 6 on a design in a mold in an aligned state and injecting a resin into a cavity to integrate a molded article and the decoration film 1, a mold wherein the angle of inclination of the slope part of a molding surface is 60-90 deg. and the difference in level due to the slope part is 0.1-4.0 mm is used and the boundary of the decoration film 1 is positioned on the slope part 14.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a painted molded article having a design boundary (for example, a transition between one color and another, or a transition between a fine matte surface and a rough matte surface). In addition, the present invention relates to a simultaneously molded article and a method for producing the same, which aims at improving the appearance of the design by making the boundary less noticeable. The painted molding according to the present invention is used for home electric appliances such as televisions and washing machines,
It is suitable as an audio equipment product such as a stereo / CD disk, a display panel of an automobile product, and the like.

[0002]

2. Description of the Related Art Conventionally, there is a painted molded product having a design boundary. The manufacturing method is as follows. (1) After obtaining a molded article, there is a method in which different design areas are formed adjacent to each other by printing in a subsequent step to obtain a painted molded article having a design boundary (printing method). (2) A painting film having a design boundary between different design areas is positioned and arranged in a mold, and after closing the mold, a resin is injected and the painting film is adhered to a molded product. Then, there is a method in which a molded article and a painting film are bonded to obtain a so-called molded simultaneous painted article having a design boundary (simultaneous molded painting method).

[0003]

However, in the prior art,
There were the following problems. In the printing method (1), in addition to the essential problems associated with the printing method that it is difficult to print directly on the surface of a three-dimensional shape, gaps are generated between different design areas or overlapping portions are formed. There were problems that occurred partially. In particular, it has been impossible to form a boundary portion in a portion having irregularities such as a groove portion of a molded product due to limitations of a printing method. In the simultaneous molding and painting method (2), since the painting film is stretched by resin pressure or vacuum suction,
The design boundaries originally formed on the painting film tend to be wavy, distorted, and inclined. Alternatively, the design part surrounded by the boundary tends to shift from a predetermined position. In these cases, when the boundary is conspicuous, the waving,
Distortion, inclination, misalignment, and the like become noticeable when viewed from the front of the product, resulting in a product with poor appearance.

[0004] It is an object of the present invention to provide a simultaneously molded article and a method of manufacturing the same, in which the design boundary is less noticeable when viewed from the front of the product and the like, and the appearance of the design is improved. It is in.

[0005]

Means for Solving the Problems To achieve the above object, a molded simultaneous painting product of the present invention and a method for producing the same are provided.
I did the following: In other words, the method for producing a simultaneously molded article according to the present invention is such that a painting film having a design boundary is aligned and placed in a mold, and resin is injected into the cavity to form the molded article and the painting film. In the method for manufacturing a simultaneously painted article, the inclination angle of the slope portion in the mold is 60 ° to 90 °, and the slope distance by the slope portion is 0.1.
A mold having a thickness of about 4.0 mm was used, and the boundary of the painting film was positioned on the slope. In the above configuration, the slope portion is a curved surface, the maximum vertical displacement angle is 60 ° to 90 °, and the height of the curved portion is 0.1 to
A 4.0 mm mold may be used. In the above configuration, the base film of the painting film may be peeled off after the molded article and the painting film are integrated. In addition, the molded simultaneous painted product of the present invention is a molded simultaneous painted product in which a painted film having a design boundary and a molded product are integrated, wherein the molded product has a slope angle of 60 ° or more. 90 °, the slope distance due to the slope is 0.
1 to 4.0 mm, and the design boundary of the painting film was located on the slope. In the above configuration, the slope portion is a curved surface, the maximum vertical displacement angle is 60 ° to 90 °, and the height is 0.1 to 4.0.
mm. In the above configuration, the base film of the painting film may be peeled off.
In the above structure, the slope distance of the slope of the molded product is 0.5 to 4.0 mm, and the design boundary in the painting film is a curved or linear band-like design having a width of 0.4 to 3.8 mm. The belt-shaped design surface may be a design different from any of the designs adjacent thereto.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the drawings. The painting film 1 used in the method for manufacturing a simultaneously molded article of the present invention will be described first. The painting film 1 has a design boundary.

As a basic layer constitution of the painting film 1, there is a film in which a picture layer 3 and an adhesive layer 4 are formed on a base film 2. The base film 2 may have releasability, or may have the release layer 5 on the base film 2. The base film 1 may or may not be peeled from the painted molded article. In the former case,
Transparency is not required for the base film, but in the latter case, transparency is required. Examples of the material of the base film 2 include polyester resin, polypropylene resin, vinyl chloride resin, polyethylene resin, polyethylene terephthalate resin, polycarbonate resin, nylon resin, vinylon resin, acetate resin, polyethylene resin, polyamide resin, and polyacrylic resin. Examples include transparent plastic films such as resins and polyvinyl chloride resins, and plastic sheets. The film thickness of the base film 2 may be 10 μm to 200 μm. Even if a matte surface is formed by forming a hairline design on the surface of the base film 2 on which the pattern layer 3 is formed, or forming a matte design by forming an uneven layer with a pigment ink. Good. Hairline designs and mat designs may be partially formed.

The release layer 5 may or may not be provided as a constituent layer of the painting film (see FIG. 2). In a painting film having a peeling layer as a constituent layer, the adhesive layer 4 is adhered to the molded article 16 and then peeled off between the base film 2 and the picture layer 3. After the peeling of the base film 2, the release layer may remain on the picture layer side, or may be peeled off together with the base film 2 and removed from the picture layer. As a material of the release layer 5, a thermoplastic resin, natural rubber, synthetic rubber, or the like can be used.

The picture layer 3 is a layer for expressing characters, numbers, figures, symbols, patterns and the like. The picture layer 3 is formed using an ink containing a resin binder, a pigment or dye as a colorant, and an additive. In order to impart transparency to the picture layer 3, a transparent ink comprising a transparent resin binder and a transparent pigment or transparent dye may be used.
In order to impart hiding power to the picture layer 3, a light-shielding ink made of a resin binder and a hiding metal pigment or inorganic pigment may be used. In order to impart a metallic feeling to the pattern layer 3, vacuum deposition, sputtering, ion plating, or the like is performed using a metal material such as a metal, a metal oxide, a metal fluoride, a metal halide, a metal nitride, and a metal sulfide. It is good to form by such as.

The adhesive layer 4 is a layer for bonding the above layers to the surface of a molded article 16 which has been cooled and solidified after injecting a molten resin 15 described later. In the case where the painted film 1 is adhered to the surface of the molded article 16 at the same time when the molded article 16 is molded with the polyacrylic resin, the polyacrylic resin may be used as the adhesive layer 4. When the material of the resin 15 is a polyphenylene oxide / polystyrene resin, a polycarbonate resin, a styrene copolymer resin, or a polystyrene blend resin, a polyacryl resin, a polystyrene resin, or a polyamide having an affinity for these resins. A system resin or the like may be used. Examples of the method for forming the adhesive layer 4 include coating such as gravure coating, roll coating, and comma coating, and printing such as gravure printing and screen printing. The dry film thickness of the adhesive layer 4 is 1 μm to 5 μm.
It is generally set to μm.

The decorative film 1 used in the present invention has different designs depending on the boundaries 6. The different designs differ in at least one of a pattern, color, texture, gloss, matte state, mat state, and the like.

The design boundary 6 of the painting film 1 used in the present invention may be as follows.
(1) Color change (see FIG. 1). In some cases, the first color portion 7 is a black portion and the second color portion 8 is a silver portion. First
The color portion 7 is expressed by the color of the first pattern layer 9, and the second color portion 8 is expressed by the second color.
It is good to express with the color of the picture layer 10. (2) a transition between a portion where the picture layer 3 exists and a portion where it does not exist; (3) a transition between a light-shielding ink portion and a translucent ink portion; (4) a transition between a metal color portion and an ink portion; ) Change in surface condition between glossy surface and matte surface (see Fig. 2) (6) Change in surface condition between fine matte surface and rough matte surface, specifically, between hairline mesh surface and glossy surface There is a transition of the surface state, and (7) a transition of the surface state between the matte design surface and the glossy surface.

The design boundary 6 may be a band-shaped design surface 20 having a width. That is, the design boundary 6
May be a band-shaped design surface 20 (see FIG. 5).
The strip-shaped design surface 20 may use an overlapping portion of the first pattern layer 9 and the second pattern layer 10 (see FIG. 5). Band-shaped design surface 20
It is preferable that the resin has a curve or a straight line having a width of 0.4 to 3.8 mm. Slope section 17 of molded article described later
This is because it is necessary to prevent the protrusion. Further, the belt-shaped design surface 20 is preferably a design different from any of the designs adjacent thereto.

According to the method of manufacturing a simultaneously molded article of the present invention, the above-mentioned painting film 1 is positioned and arranged in a mold, and a resin 15 is injected into a cavity to form the molded article 1.
6 and the painting film 1 are integrated with each other, the method of manufacturing a simultaneously painted article, wherein the slope angle of the slope portion 14 of the mold surface is 6
0 ° to 90 °, the slope distance by the slope portion is 0.1 to 4.0
mm, and the boundary of the painting film is positioned on the slope portion 14.

Specific examples are shown below. First, the painting film 1 is positioned and placed in a mold. For example,
A mold including a cavity mold 11 along which the painting film 1 closely adheres and a core mold 13 having a resin injection port 12 is used. Painting film 1 for cavity mold 11
Has a slope portion 14 on the mold surface along which is closely adhered (FIG. 3,
4).

The slope 14 has an inclination angle of 60 ° to 9 °.
The plane is 0 ° and the slope distance by the slope portion is 0.1 to 4.0 mm. When the inclination angle is less than 60 °, the design boundary 6 becomes conspicuous when the obtained molded article is viewed from the front. Further, when the inclination angle exceeds 90 °, it becomes difficult to align the design boundary 6 of the painting film 1. When the slope distance is less than 0.1 mm, it is difficult to align the design boundary 6 of the painting film 1 when the obtained molded product is viewed from the front. On the other hand, when the slope distance exceeds 4.0 mm, the shadow on the slope is too strong. The slope portion 14 may be a flat surface (see FIG. 7A) or a curved surface (see FIG. 7A).
(See FIG. 7B), a flat surface and a curved surface may be combined (see FIG. 7C), or a curved surface having a small radius of curvature and a curved surface having a large radius of curvature may be combined (see FIG. 7C). Not shown).

The slope portion 14 is located on the mold surface where the design boundary 6 of the painting film 1 is located.
When the boundary 6 is the band-shaped design surface 20, the band-shaped design surface 20
Must be positioned so as not to protrude from the slope portion 14. The width of the belt-like design surface 20 is set to 0.4 to 3.8.
mm, and the width of the slope portion 14 of the mold is 0.5 to 4.0 mmm.
By setting, it is possible to absorb a positional deviation error due to the stretching of the painting film 1, which is effective. In other words, from a film with a stretching ratio of about 5% to 900%
This is for making it possible to cope with a film having a stretching ratio of.

The painting film 1 may be stretched by vacuum suction or the like so as to be in close contact with the inner surface shape of the cavity mold 11 before clamping.

Next, the cavity mold 11 and the core mold 13 are clamped to form a cavity into which the resin 15 is injected, and the resin 15 is injected into the cavity from an injection port to form a molded product 16. At the same time, the molded article 16 and the painting film 1 are bonded and integrated (see FIG. 4). After the resin 15 is cooled and solidified, the resin 15 may be separated between the base film 2 and the release layer 5. Alternatively, it may be peeled off between the base film 2 having releasability and the picture layer 3. As the resin 15 to be injected, an injection molding resin such as an acrylic resin or a polycarbonate resin can be used.
The painting film 1 may be stretched by vacuum suction or the like after the mold clamping so as to follow the inner surface shape of the cavity mold 11 (see FIG. 3).

The molded simultaneous painted article of the present invention obtained by the above-described manufacturing method is a molded simultaneous painted article in which the painting film 1 having a design boundary and the molded article 16 are integrated with each other. However, the inclination angle of the slope 17 is 6
0 ° to 90 °, slope distance by slope portion 17 is 0.1 to
4.0 mm, and the design boundary of the painting film is located on the slope 17 (FIG. 6, FIG.
(See FIG. 7). Alternatively, the slope distance of the slope portion 17 of the molded product is 0.5 to 4.0 mm, and the design boundary in the painting film is a curved or linear band-shaped design surface having a width of 0.4 to 3.8 mm. In some cases, the belt-shaped design surface 20 is a design different from any of the designs adjacent thereto (see FIG. 6). In the above painted molded article, the design boundary 6 is the base film 2 constituting the painted film 1.
May be covered, or may not be covered with the base film 2.

The slope 17 of the molded product may be a flat surface (see FIG. 7A), a curved surface (see FIG. 7B), or a combination of a flat surface and a curved surface. It may be a combination (see FIG. 7 (c)) or a combination of a curved surface with a small radius of curvature and a curved surface with a large radius of curvature (not shown). When the slope 17 of the molded product is a flat surface, the inclination angle X of the slope 17 with respect to the reference line is 60 ° or more.
The slope portion may be determined so as to be 90 ° (FIG. 7A)
reference).

When the slope 17 of the molded product is a curved surface (see FIGS. 7B and 7C), a reference line is set on the top surface or a horizontal line, and a displacement auxiliary line is set separately from the reference line. This displacement auxiliary line moves in a vertical plane. Therefore, the vertical displacement angle X of the displacement auxiliary line with respect to the reference line is obtained.
Changes in the upper part, the central part, the lower part, etc. in the slope part 17,
The simultaneous painted product of the present invention has a vertical displacement angle X
The design boundary of the painting film is located on the slope portion 17 having a portion where the maximum value (maximum vertical displacement angle) is 60 ° to 90 ° (FIG. 7).
(See (b) and (c)).

[0023]

As described above, according to the present invention, the simultaneous molded article and the method of manufacturing the same have a slope angle of 60 degrees or a maximum displacement angle of 60 degrees.
The slope distance is 0.1 to 4.0m at the angle of 90 ° to 90 °.
Since the manufacturing is performed using the mold of m and the boundary of the painting film positioned on the slope, the following effects are obtained. In other words, the boundary formed on the simultaneously painted article is formed when the slope angle or the maximum displacement angle of the slope portion is 60 degrees.
The slope distance is 0.1 to 4.0m at the angle of 90 ° to 90 °.
m, it is difficult to recognize its presence when viewed from the front of the molded article. As a result, it is difficult to determine waving, distortion, inclination, misalignment, and the like that occur at the boundary formed in the molded article at the same time of molding, so that a good-looking product can be obtained. In one aspect of the present invention,
The slope distance due to the slope portion of the molded product is 0.5 to 4.0 mm, and the design boundary in the painting film is 0.4 to 4.0 mm.
Some have a 3.8 mm wide curved or straight band-shaped design surface, and the band-shaped design surface is different from any adjacent designs. In this case, even if the design boundary of the painting film is a band-like design surface, as described above, an effect is obtained in that it is difficult to confirm when the simultaneously molded article is viewed from the front. Furthermore, in addition to this effect, when the simultaneously painted product is viewed from the side, it is clearly recognizable, and products with different design feelings when viewed from the front and side are used. Since it can be provided, the effect that the variety of designs can be improved is obtained.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing an example of a painting film used in the method for producing a simultaneously molded article of the present invention.

FIG. 2 is a cross-sectional view showing an example of a painting film used in the method for producing a simultaneously molded article of the present invention.

FIG. 3 is a cross-sectional view showing an example of one step of the method for producing a simultaneously molded article of the present invention.

FIG. 4 is a cross-sectional view showing an example of one step of the method for manufacturing a simultaneously molded article of the present invention.

FIG. 5 is a cross-sectional view showing one example of a painting film used in the method for producing a simultaneously molded article of the present invention.

FIG. 6 is a cross-sectional view showing one example of a simultaneously molded article of the present invention.

FIG. 7 shows a slope portion of a mold used in the manufacturing method of the present invention;
Alternatively, it is a conceptual cross-sectional view showing an example of a slope portion of a simultaneously painted product.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Painting film 2 Base film 3 Picture layer 4 Adhesive layer 5 Release layer 6 Boundary 7 1st color part 8 2nd color part 9 1st pattern layer 10 2nd pattern layer 11 Cavity type 12 Resin injection opening 13 Core type 14 Slope Part 15 Resin 16 Molded product 17 Slope portion of molded product 20 Band-shaped design surface 21 Flat surface 22 Curved surface

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[Procedure amendment]

[Submission Date] May 18, 2000 (200.5.1)
8)

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Claim 2

[Correction method] Change

[Correction contents]

[Procedure amendment 2]

[Document name to be amended] Statement

[Correction target item name] Claim 5

[Correction method] Change

[Correction contents]

[Procedure amendment 3]

[Document name to be amended] Statement

[Correction target item name] 0005

[Correction method] Change

[Correction contents]

[0005]

Means for Solving the Problems To achieve the above object, a molded simultaneous painting product of the present invention and a method for producing the same are provided.
I did the following: In other words, the method for producing a simultaneously molded article according to the present invention is such that a painting film having a design boundary is aligned and placed in a mold, and resin is injected into the cavity to form the molded article and the painting film. In the method for manufacturing a simultaneously painted article, the inclination angle of the slope portion in the mold is 60 ° to 90 °, and the slope distance by the slope portion is 0.1.
A mold having a thickness of about 4.0 mm was used, and the boundary of the painting film was positioned on the slope. In the above configuration, a mold having a curved surface on the slope may be used. In the above configuration, the base film of the painting film may be peeled off after the molded article and the painting film are integrated. In addition, the molded simultaneous painted product of the present invention is a molded simultaneous painted product in which a painted film having a design boundary and a molded product are integrated, wherein the molded product has a slope angle of 60 ° or more. At 90 °, the slope distance by the slope portion is 0.1 to 4.0 mm, and the design boundary of the painting film is located at the slope portion. In the above configuration, the slope portion may be a curved surface. In the above configuration, the base film of the painting film may be peeled off. In the above configuration, the slope distance of the slope of the molded product is 0.5 to 4.0 m.
m, and the design boundary in the painting film is
It may be a curved or straight band-shaped design surface having a width of 0.4 to 3.8 mm, and the band-shaped design surface may be a design different from any design adjacent thereto.

Claims (7)

[Claims] 1. A molding simultaneous painting product in which a painting film having a design boundary is aligned and arranged in a mold, and a resin is injected into the cavity to integrate the molding with the painting film. In the manufacturing method, the slope angle of the slope portion in the mold is 60 ° to 90 °, and the slope distance by the slope portion is 0.1.
A method for producing a simultaneously molded article, wherein the boundary of the painting film is positioned on the slope using a mold having a thickness of about 4.0 mm. 2. The slope portion is a curved surface, the maximum displacement angle of which is 60 ° to 90 °, and the height of the curved portion is 0.1 to 4.0.
The method for producing a simultaneously molded article according to claim 1, wherein a mold having a diameter of 0 mm is used. 3. The method according to claim 1, wherein the base film of the painting film is peeled off after the molded article and the painting film are integrated.
Or the method for producing a simultaneously molded article according to 2 above. 4. A molded simultaneous painting product in which a painting film having a design boundary and a molded product are integrated, wherein the molded product has a slope angle of 60 ° to 90 ° and a slope formed by the slope portion. A molded simultaneous painting product having a distance of 0.1 to 4.0 mm and a design boundary of the painting film located at the slope. 5. The slope portion is a curved surface, and has a maximum vertical displacement angle of 60 ° to 90 ° and a height of 0.1 to 4.
The molded simultaneous painting product according to claim 4, which is 0 mm. 6. The molded simultaneous painting product according to claim 4, wherein the base film of the painting film is peeled off. 7. The slope distance due to the slope portion of the molded product is 0.5.
４4.0 mm, and the design boundary in the painting film is a curved or linear band-shaped design surface having a width of 0.4 to 3.8 mm, and any design whose band-shaped design surface is adjacent to it. The molded simultaneous painted product according to any one of claims 4 to 6, wherein the design is different from the design.