JPH09183142A - Manufacture of two-color in-mold decorating product - Google Patents

Abstract

PROBLEM TO BE SOLVED: To efficiently produce a two-color in-mold decorating product having a good-looking picture pattern on one of materials having different qualities or both of them. SOLUTION: A primary molding cavity mold 5 and a core mold 4 mold a primary molding resin section 21. The primary molding resin section 21 to which a decorated sheet 1 is adhered by an adhesive layer is separated from the primary molding cavity mold 5. A secondary molding cavity mold 6 is moved to the core mold 4 to which the primary molding resin section 21 having the decorated sheet 1 adhered thereto is kept adhered. The secondary molding cavity mold 6 and the core mold 4 mold a secondary molding resin section. A two-color in-mold decorating product wherein the decorated sheet 1 is adhered to both of the primary molding resin section 21 and the secondary molding resin section or one of them is taken out.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for producing a two-color simultaneous painting product used for front panels and cases of AV equipment and home appliances, buttons, instrument panels and buttons of automobiles, and the like.

[0002]

2. Description of the Related Art Conventionally, as a method of manufacturing a product such as an input button of a computer, two types of molten molding resins having different colors and materials are sequentially injected from two nozzles of one injection molding machine. 2 where two different types of molding resin parts are joined
There is a so-called two-color molding method for producing a colored molded product. In addition, a painting sheet having a pattern layer or the like formed on a base sheet is closed and sandwiched, and a molten molding resin is injection-molded, and at the same time, the painting sheet is adhered to a resin molded product to obtain a simultaneously molded painting product. There is a so-called molding simultaneous painting method.

[0003]

As the design expression by the former two-color molding method, there are two colors or two types depending on the color and material of the resin to be injection-molded. It didn't work. In the latter,
Even if the design is satisfied by the pattern of the transfer layer, the material is limited to a single material. For example, it was not possible to obtain a button having a button made of a thermoplastic elastomer resin in an audio panel made of an ABS resin, and having a multicolored and beautiful design applied to any resin. In addition, in the case of insert molding, a primary molded product (for example, a product with simultaneous molding) is obtained in advance, and this is then inserted (placed) in a secondary molding die in a separate process, and the secondary molding resin There is also a method of injection molding, but since the secondary molding is carried out with the lapse of time after obtaining the primary molded product, there are the following problems and it is practically not practiced. 1. It is difficult to insert into the secondary molding die due to shrinkage strain of the primary molded product. Or it may not be possible. 2. Since the secondary molded product is molded after the primary molded product has cooled, close contact between the primary molded product and the secondary molded product is not possible. Alternatively, since the adhesion between the primary molded product and the secondary molded product is poor, there is a problem that the insert sheet is peeled off in the durability test. 3. Painting can be performed only on the primary molded product side (positioning with the secondary molded product becomes a problem). 4. The process is separated and the cost increases.

An object of the present invention is to provide a two-color molding simultaneous painting product capable of efficiently producing a two-color molding simultaneous painting product in which a good-looking pattern is formed on one or both of different materials. It is to provide a manufacturing method.

[0005]

In order to achieve the above object, a method for producing a two-color molding simultaneous decorative article of the present invention comprises:
As described in claim 1, a core mold having a primary molding resin injection path and a secondary molding resin injection path, and a painting sheet in which a pattern layer and an adhesive layer are laminated on a base sheet are arranged. Molding cavity mold and painting sheet are not placed 2
Using a two-color molding simultaneous painting device equipped with a secondary molding cavity mold, first, a decorative sheet is placed on the primary molding cavity mold, and then the primary molding cavity mold and the core mold are separated. Closing the mold, injecting the primary molding resin into the primary molding cavity to mold the primary molding resin portion, then opening the primary molding cavity mold and the core mold, and painting. The primary molding resin part to which the sheet is adhered by the adhesive layer is separated from the primary molding cavity mold, and then the secondary molding cavity mold is adhered to the primary molding resin part to which the painting sheet is adhered. Next, the secondary molding cavity mold and the core mold are closed, and the secondary molding resin is injected into the secondary molding cavity to mold the secondary molding resin portion. Open the cavity mold for secondary molding and the core mold into Painting sheet is derived is a bonded two-color molding simultaneous decorating products in both or either of the secondary molding resin portion.

Further, as described in claim 2, at the same time as the mold opening of the secondary molding cavity mold and the core mold, or after the mold opening, only the base sheet is peeled off to form the primary molding resin portion. Only the transfer layer was transferred to both or one of the secondary molding resin parts.

Further, as described in claim 3, as the primary molding resin and the secondary molding resin, resins having mutually different colors are used.

Further, as described in claim 4, as the primary molding resin and the secondary molding resin, resins having mutually different hardnesses are used.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the drawings. For convenience of explanation, a painting sheet used in the method for producing a two-color molding simultaneous painting product of the present invention and 2
The color forming simultaneous painting device will be described first.

A specific example of the painting sheet 1 will be described. The decorative sheet 1 is basically a base sheet on which at least a picture layer and an adhesive layer are laminated. Painting sheet 1
The types of those that do not peel the base sheet after the molding resin adheres to the painting sheet 1 (hereinafter referred to as “insert sheet”) (FIG. 13) and those that peel the base sheet (hereinafter referred to as “transfer sheet”). .) (FIG. 14). When used as a transfer sheet, a release layer is formed between the base sheet and the pattern layer. Examples of the material of the base sheet include various resins such as polyethylene terephthalate, acrylic, and thermoplastic elastomer. The release layer may be made of a polyacrylic resin or the like. When the release layer is required to have hardness, an ionizing radiation curable resin such as an ultraviolet curable resin may be used. The ionizing radiation-curable resin may be used alone, or may be used as a mixture with another resin. The picture layer uses a resin binder and a pigment or a dye. The picture layer may use a resin binder and a metal pigment or an inorganic pigment having a masking property. For the adhesive layer, a heat-sensitive or pressure-sensitive resin suitable for the materials of the primary molding resin 20 and the secondary molding resin 23 is appropriately used. For example, when the primary molding resin 20 is an acrylic resin and the secondary molding resin 23 is a urethane resin, vinyl chloride-vinyl acetate copolymer resin may be used as the adhesive layer. The peeling layer, the pattern layer, and the adhesive layer are formed by various printing methods.
In the painting sheet 1, the adhesive layer adheres only to the primary adhesive portion that adheres to the primary molding resin 20 and to the secondary molding resin 23.
It may be composed of a next adhesive portion. The decorating sheet 1 may be one in which the adhesive layer includes only the primary adhesive portion that adheres to the primary molding resin 20. The portion corresponding to the secondary molding resin portion of the painting sheet 1 may be cut out.
The decorating sheet 11 may be cut into individual sheets or may be rolled up.

A specific example of the two-color molding simultaneous painting apparatus will be described. The two-color molding simultaneous painting device has a primary molding resin injection path 2
And a core mold 4 having a secondary molding resin injection path 3, a primary molding cavity mold 5 in which the painting sheet 1 is arranged, and a secondary molding cavity mold 6 in which the painting sheet 1 is not arranged. There is. If necessary, the cavity mold may be provided with a painting sheet feeding device 7 for feeding the painting sheet 1 to the primary molding cavity mold 5 and a painting sheet winding device 8.

The primary molding cavity mold 5 and the secondary molding cavity mold 6 may be attached to a movable platen such as a rotary plate 9 capable of rotating or a slide plate capable of sliding (FIGS. 1 to 6). . The primary molding cavity mold 5 and the secondary molding cavity mold 6 move back and forth in a circular arc between the front surface of the core mold 4 and the front surface of another core mold 4 by the rotation of the turntable 9. The primary molding cavity mold 5 and the secondary molding cavity mold 6 may be attached to a slide board. The rotary disc 9 and the slide disc are the drive unit 1 mounted in the drive unit 16.
It is fixed to the tip of the shaft 14 of 3. The drive unit 13 has a shaft 14
The rotary disc 9 is rotationally driven via the, and the slide disc is slid. Further, the drive unit 13 is a core type 4
On the other hand, the turntable 9 is arranged so that both the primary molding cavity mold 5 and the secondary molding cavity mold 6 approach and separate from each other.
It may also be one that drives the slide board back and forth.

The core mold 4 is attached to the stationary platen 15. The primary molding resin injection path 2 is connected to the primary molding resin injection nozzle 11 of the injection unit 10. The secondary molding resin injection path 3 is
It is connected to the secondary molding resin injection nozzle 12 of the injection unit 10. One core mold 4 is provided on the front surface of the primary molding cavity mold 5 and one on the front surface of the secondary molding cavity mold 6 so that the primary molding and the secondary molding can be performed simultaneously at different places. It is good to arrange. The stationary platen 15 may be fixed to the tip of the shaft 14 of the drive unit 13 mounted in the injection unit 10. The drive unit 13 may drive the fixed platen 15 back and forth so that the core mold 4 approaches and separates from both the primary molding cavity mold 5 and the secondary molding cavity mold 6.

Core molds 4 and 1 of a two-color molding simultaneous painting device
Specific examples of the secondary molding cavity mold 5 and the secondary molding cavity mold 6 are as follows. (1) The primary molding cavity mold 5 has a primary molding cavity 17, and the secondary molding cavity mold 6 has a secondary molding cavity 18, which is more than the primary molding cavity 17. Some secondary molding cavities 18 are large (FIGS. 1 to 7). In this case, the core mold 4 may have the primary molding cavity 17 and the secondary molding cavity 18. The core mold 4 may have a protrusion 19 (FIGS. 1 to 7).

(2) The core mold 4 is the primary molding cavity 1
7 and the secondary molding cavity mold 6 has the secondary molding cavity 18 (FIG. 8). The core type 4 is
It has two primary molding cavities 17. In this case, the primary molding cavity mold 5 closes the secondary molding injection path of the core mold 4 by closing the mold with the core mold 4.

(3) The core mold 4 is the primary molding cavity 1
Some have 7 and a secondary molding cavity 18 (FIG. 9). In the core mold 4, the primary molding cavity 17 and the secondary molding cavity 18 may be one space or may be separate spaces. The primary molding cavity mold 5 closes the injection path for secondary molding of the core mold 4 by closing the mold with the core mold 4. The secondary molding cavity mold 6 may have a secondary molding cavity 18 or may have a protrusion 19.

(4) The core mold 4 has a slide block 26, and the slide block 26, the core mold 4 and the cavity 5 for primary molding form a cavity 17 for primary molding,
Next, the slide block 26, the core mold 4, the secondary molding cavity mold 6 and the primary molding resin portion 21
There is one that forms the next molding cavity 18 (see FIG. 1).
0). The primary-molding cavity die 5 may have the primary-molding cavity 17 or may have the protruding portion 19. The secondary molding cavity mold 6 may have a secondary molding cavity 18 or may have a protrusion 19. The slide block 26 may be provided in the cavity mold 5 for primary molding and the cavity mold 6 for secondary molding.

The injection unit 10 is a horizontal molding machine (a cavity mold and a core mold of a mold are installed so as to face each other,
Even with horizontal molding, the vertical molding machine (cavity mold and core mold of the mold are installed facing each other up and down,
The mold may be closed vertically). A molding machine having two cylinders for plasticizing two kinds of materials, each of which has a nozzle hole for injecting a resin into a mold, may be used. The two cylinders may be parallel or opposite,
Further, they may be arranged in a right angle direction. The cylinder may be arranged either vertically or horizontally. The two core molds 4 may be lined up and down, may be lined up on the left and right, or may be lined up with the injection paths facing each other. It may be one that branches from one cylinder to two molding resin injection nozzles. For example, FIGS.
There are the following.

The decorating sheet feeding device 7 and the decorating sheet winding device 8 are included in the primary molding cavity mold 5.
The long painting sheet 1 is continuously supplied to the next molding cavity 17. Painting sheet feeding device 7
Is composed of a decorative sheet 1 wound up in a roll, a support rod for supporting the decorative sheet 1 on a turntable 9, a nip roll for feeding the decorative sheet 1, a sensor for accurate alignment with the cavity, and the like. The decorating sheet winding device 8 includes the decorating sheet 1 which is sent from the decorating sheet feeding device 7 and is wound into a roll, and the rotating sheet 9
It consists of a support rod and so on.

Each step of a specific example of the method for producing a two-color molding simultaneous painting product of the present invention using the above-mentioned painting sheet 1 and two-color molding simultaneous painting device will be described below. First, the painting sheet 1 is placed in the cavity mold 5 for primary molding. Specifically, the painting sheet feeding device 7 located above the primary molding cavity die 5 feeds the painting sheet 1 of a certain length in front of the cavity die, and the painting sheet located below the cavity die The decorating sheet winding device 8 winds up the decorating sheet 1 of a certain length, and a predetermined pattern of the decorating sheet 1 is placed in front of the cavity-type primary molding cavity 17 (FIG. 1). If necessary, before the mold is closed between the cavity mold and the core mold 4, the decorating sheet 1 is heated and vacuum-sucked to form the cavity 17 for the primary molding of the cavity mold 17.
It may be adhered to the inner surface of the (Fig. 1). When the painting sheet 1 is a single sheet, it is artificially and mechanically (robot) arranged one by one in the cavity. When arranging the decorative sheet 1 in the primary molding cavity 17, the decorative sheet 1 may be fixed by a clamp member around the primary molding cavity 17. When the adhesive layer of the painting sheet 1 is composed of a primary adhesive portion that adheres to the primary molding resin 20 and a secondary adhesive portion that adheres only to the secondary molding resin 23,
It is advisable to arrange the decorating sheet 1 so that the primary adhesive portion is located in the primary molding cavity 17 and the secondary adhesive portion covers the secondary molding injection path.

Next, the primary molding cavity mold 5 and the core mold 4 are closed, and the primary molding resin 20 is injected into the primary molding cavity 17 to mold the primary molding resin portion 21. . Specifically, for the mold closing, the rotary disk 9 may be pushed forward by the drive unit 13 of the drive unit 16 and the shaft 14. By closing the mold, the painting sheet 1 is sandwiched between the primary molding cavity mold 5 and the core mold 4, and the secondary molding resin injection path 3 is closed by the slide block 26 of the primary molding cavity mold 5 or the core mold 4 ( 2, FIG. 7 (a), and FIG.
(A), FIG. 9 (a), and FIG. 10 (a)). The primary molding resin 20 is injected into the primary molding cavity 17 to mold the primary molding resin portion 21, and the primary molding resin portion 21 and the adhesive layer of the decorating sheet 1 are adhered (FIG. 3, FIG. 7 (b), FIG.
(B), FIG. 9 (b), FIG. 10 (b)). The primary molding cavity 17 is provided in either or both of the primary molding cavity mold 5 and the core mold 4. Adhesion means that the primary molding resin 20 in a molten state is cooled and solidified in contact with the adhesive layer of the painting sheet 1 to form the primary molding resin portion 21 and the primary molding resin portion 21 and the adhesive layer. It means that and stick together and become one. The painting sheet 1 may be adhered to the top surface and side surfaces of the primary molding resin portion. The painting sheet 1 may be adhered only to the top surface of the primary molding resin portion 21 and not to the side surface (FIGS. 7 and 9). The painting sheet 1 may be adhered only to a part of the top surface of the primary molding resin portion 21 (FIG. 8 (e)). Painting sheet 1
When sending out from the painting sheet sending device 7, the cutting part 2 is cut on the painting sheet 1 with a cutting blade or a heat cutter.
2 is provided and the decorating sheet 1 is cut (FIG. 4, FIG. 7B, FIG. 8B, FIG. 9B, FIG. 10).
(B)). The injection of the primary molding resin 20 is performed by the injection unit 1.
0 injection mechanism, primary molding resin injection nozzles 11, 1
The molding resin is flown through the next molding resin injection path 2. The primary molding resin 20 and the secondary molding resin 23 may be molding resins having mutually different colors or may be molding resins having mutually different hardnesses. A specific example of the case where the molding resins of different colors are different from each other is a combination in which the primary molding resin 20 is black and the secondary molding resin is transparent, and the primary molding resin 20 is white and 2
There is a combination in which the next molding resin 23 is blue. Both the primary molding resin 20 and the secondary molding resin 23 may be transparent. A specific example of forming the molding resins having different hardnesses is that the primary molding resin 20 is a thermoplastic resin having a high hardness of JIS A hardness of 100 or more and the secondary molding resin 23 is the JIS A hardness of 30.
There are combinations that are -100 thermoplastic elastomers.
Alternatively, the primary molding resin 20 has JIS A hardness of 30 to 10
A thermoplastic elastomer of 0 and a secondary molding resin 23 of JI
There is a combination that is a resin having a high SA hardness of 100 or more. Other resins having a high hardness of JIS A hardness of 100 or more include acrylic styrene resin, acrylic styrene butadiene resin, polycarbonate resin, acrylic resin, nylon resin, styrene resin, vinyl chloride resin, polyester resin, polyurethane resin, polypropylene resin, There is a polyethylene resin, a polybutylene terephthalate resin, or an alloy (also called a mixture or a composite product) of these resins. As the thermoplastic elastomer having JIS A hardness of 30 to 100, styrene-butadiene-styrene (SBS) block copolymer, hydrogenated SBS
There are styrene elastomers such as block copolymers, polyester elastomers, polyurethane elastomers, and polyamide elastomers. In addition, JIS
As a thermoplastic elastomer having an A hardness of 30 to 100,
The silicone two-component curing resin may be provided by LIM (liquid injection molding) injection molding.

Next, the primary molding cavity mold 5 and the core mold 4 are opened to separate the primary molding resin portion 21 from the primary molding cavity mold 5. Specifically, the mold opening is
The turntable 9 may be pulled rearward by the drive unit 13 and the shaft 14 of the drive unit 16 (FIGS. 4, 7C, and 8).
(C), FIG. 9 (c), FIG. 10 (c)).

In order to prevent the primary molding resin portion 21 from being separated from the core mold 4 when the mold is opened, the side wall from the top surface to the root is inclined in the protruding portion 19 of the core mold 4. In addition, it is preferable that the base has a constricted shape, that is, a so-called undercut shape (FIG. 15). Or core type 4
In this cavity, the opening of the cavity may have a constricted shape, a so-called undercut shape (see FIG. 1).
5). This is effective because the primary molding resin portion 21 is caught on the top surface of the protruding portion 19 of the core mold 4 or the like by the opening portion of the cavity so that the primary molding resin portion 21 is difficult to separate from the core mold 4. .

Next, the secondary molding cavity mold 6 is moved to the core mold 4 in which the painting sheet 1 and the primary molding resin portion 21 remain in close contact with each other. Specifically, the drive unit 16
It is advisable to rotate the rotary disk 9 that is a cavity-type movable disk or slide the slide disk by the drive unit 13 and the shaft 14 of FIG. 5 (FIG. 5, FIG. 7 (d), FIG. 8 (d), FIG. 9).
(D), FIG. 10 (d)). The rotation of the turntable 9 may be stopped at a predetermined position or the slide of the slide plate may be stopped at a predetermined position by mechanical means such as friction or electrically by electromagnetic force.

Next, the secondary molding cavity mold 6 and the core mold 4 are closed, and the secondary molding resin 23 is injected into the secondary molding cavity 18 to mold the secondary molding resin portion 24. . Specifically, the mold closing may be performed by pushing the rotary disk 9 forward by the drive unit 13 of the drive unit 16 and the shaft 14 (FIG. 6, FIG. 5 (e), FIG. 6 (e), FIG. 9 ( e), FIG.
(E)). When the core mold 4 has the slide block 26, the slide block 26 of the core mold 4 is slid to move the secondary molding cavity 1
8 is formed (FIG. 10E). In the case where the secondary molding cavity mold 6 has the slide block 26, the slide block 26 of the secondary molding cavity mold 6
The secondary molding cavity 18 is formed by sliding. After the mold is closed, if necessary, the portion of the painting sheet 1 that is not adhered to the primary molding resin portion 21 is
It may be brought into close contact with the inner surface of the next molding cavity 18 (FIGS. 7 (e) and 8 (e)). Vacuum suction or the like is used for the close contact. The secondary molding resin 23 is injected into the secondary molding cavity 18 to mold the secondary molding resin portion 24, and the secondary molding resin portion 24 and the adhesive layer of the decorating sheet 1 are bonded (FIG. 6, FIG. 7 (f), FIG. 8 (f), FIG. 9 (f), and FIG.
(F)). The injection of the secondary molding resin 23 is performed by the injection unit 1.
The secondary molding resin injection nozzles 12, 2 by the injection mechanism of 0.
The molding resin is flown through the next molding resin injection path 3.

Next, the cavity mold 6 for secondary molding and the core mold 4 are opened, and the painting sheet 1 is adhered to both or one of the primary molding resin portion 21 and the secondary molding resin portion 24.
The color forming simultaneous painting product 25 is taken out. Specifically, the mold opening may be performed by pulling the turntable 9 rearward by the drive unit 13 of the drive unit 16 and the shaft 14 (FIG. 1). As the two-color molding simultaneous painting product 25, for example, FIG.
(G), FIG. 9 (g), FIG. 10 (g), FIG. 11 and FIG. When a transfer sheet is used as the painting sheet 1, the base sheet is peeled off at the same time as the two-color molding simultaneous painting product 25 is taken out or after it is taken out (FIG. 12). 2 obtained by the production method of the present invention
As the color molding simultaneous painting product 25, the primary molding resin portion 21
To which the decorative sheet 1 is adhered only, or to which the decorative sheet 1 is adhered only to the secondary molding resin portion 24, the decorative sheet 1 is adhered to both the primary molding resin portion 21 and the secondary molding resin portion 24. There is a glued one. Further, the transfer layer transferred only to the primary molding resin portion 21, the transfer layer transferred only to the secondary molding resin portion 24, the transfer to both the primary molding resin portion 21 and the secondary molding resin portion 24. There are layers transferred. Further, there are those in which the primary molding resin portion 21 and the secondary molding resin portion 24 are joined, and those which are not joined.

[0027]

EFFECTS OF THE INVENTION According to the method for producing a two-color molding simultaneous painted product of the present invention, a molded product of a different material excellent in design expression can be efficiently obtained.

The method for producing a two-color simultaneous molding product of the present invention has, for example, a button made of a thermoplastic elastomer resin in an audio panel made of ABS resin, and any resin is multicolored and beautiful. A product with a design can be obtained. Further, since the primary molded resin part and the secondary molded resin part are continuously obtained, the following effects are obtained. 1. Since the secondary molding can be performed before the primary molding resin portion undergoes shrinkage distortion, it can be easily inserted into a mold. 2. Since the secondary molded resin part is molded before the primary molded resin part cools, the adhesion between the primary molded resin part and the secondary molded resin part is good. 3. Painting can be performed on both the primary molding resin part and the secondary molding resin part, and the positioning of the pattern is accurate. 4. The cost is low because the processes are not separated.

In the method of manufacturing a two-color molding simultaneous painting product of the present invention, since the cavity mold is moved, it is not necessary to rotate or slide the core mold 4. Therefore, it is not necessary to attach a drive unit for rotating or sliding the core mold 4 to the injection unit, so that the device on the injection unit side is not complicated and the cost is reduced. Also,
The primary molding resin portion does not fall off due to the rotation operation of the core mold 4, the vibration during sliding, and the wind pressure. Further, it is not necessary to align the molding resin injection path of the core mold 4 with the molding resin injection nozzle of the injection unit each time the primary molding is performed to the secondary molding and the secondary molding is performed to the primary molding. Therefore, the production cost and production efficiency are excellent.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing one step of a method for manufacturing a two-color molding simultaneous painted product of the present invention.

FIG. 2 is a cross-sectional view showing one step of a method for manufacturing a two-color molding simultaneous painted product of the present invention.

FIG. 3 is a cross-sectional view showing one step of a method for manufacturing a two-color molding simultaneous painted product of the present invention.

FIG. 4 is a cross-sectional view showing one step of a method for manufacturing a two-color simultaneous formation decorative article of the present invention.

FIG. 5 is a cross-sectional view showing one step of a method for manufacturing a two-color molding simultaneous painted product of the present invention.

FIG. 6 is a cross-sectional view showing one step of a method for manufacturing a two-color molding simultaneous decorative product of the present invention.

FIG. 7 is a cross-sectional view showing one step of a method for manufacturing a two-color molding simultaneous painted product of the present invention.

FIG. 8 is a cross-sectional view showing one step of a method for manufacturing a two-color molding simultaneous painted product of the present invention.

FIG. 9 is a cross-sectional view showing one step of a method for manufacturing a two-color molding simultaneous painted product of the present invention.

FIG. 10 is a cross-sectional view showing one step of a method for manufacturing a two-color molding simultaneous painted product of the present invention.

FIG. 11 is a cross-sectional view showing an example of a two-color molding simultaneous painted product obtained by the method for producing a two-color molding simultaneous painted product of the present invention.

FIG. 12 is a cross-sectional view showing one step of a method for manufacturing a two-color molding simultaneous painted product of the present invention.

FIG. 13 is a cross-sectional view showing an example of a painting sheet used in the method for producing a two-color molding simultaneous painting product of the present invention.

FIG. 14 is a cross-sectional view showing an example of a painting sheet used in the method for producing a two-color molding simultaneous painting product of the present invention.

FIG. 15 is a cross-sectional view showing a core mold used in the method for producing a two-color molding simultaneous painted product of the present invention.

FIG. 16 is a cross-sectional view showing an example of a two-color molding simultaneous painting apparatus used in the method for producing a two-color molding simultaneous painting product of the present invention.

[Explanation of symbols]

 1 Painting Sheet 2 Primary Molding Resin Injection Path 3 Secondary Molding Resin Injection Path 4 Core Mold 5 Primary Molding Cavity Mold 6 Secondary Molding Cavity Mold 7 Painting Sheet Feeding Device 8 Painting Sheet Winding Device 9 Rotation Board 10 Injection Unit 11 Primary Molding Resin Injection Nozzle 12 Secondary Molding Resin Injection Nozzle 13 Drive Unit 14 Shaft 15 Fixed Plate 16 Drive Unit 17 Primary Molding Cavity 18 Secondary Molding Cavity 19 Projection 20 Primary Molding Resin 21 Primary molding resin part 22 Cutting part 23 Secondary molding resin 24 Secondary molding resin part 25 Two-color molding simultaneous painting product 26 Slide block

Claims (4)

[Claims] 1. A cavity mold for primary molding in which a core mold having a primary molding resin injection path and a secondary molding resin injection path, and a painting sheet in which a pattern layer and an adhesive layer are laminated on a base sheet are arranged. And a two-color molding simultaneous painting device provided with a cavity mold for secondary molding in which a painting sheet is not arranged,
First, a painting sheet is placed in the primary molding cavity mold, then the primary molding cavity mold and the core mold are closed, and the primary molding resin is injected into the primary molding cavity. The primary molding resin part is molded, then the primary molding cavity mold and the core mold are opened, and the primary molding resin part to which the painting sheet is adhered by the adhesive layer is removed from the primary molding cavity mold. Then, the secondary molding cavity mold is moved to the core mold in which the primary molding resin portion to which the painting sheet is adhered is still in contact, and then the secondary molding cavity mold and the core mold are separated. The mold is closed, the secondary molding resin is injected into the secondary molding cavity to mold the secondary molding resin portion, and then the secondary molding cavity mold and the core mold are opened to perform the primary molding. Two-color composition in which a painting sheet is adhered to both or one of the resin part and the secondary molding resin part Two-color molding simultaneous decorating products manufacturing method, characterized by taking out the simultaneous painting products. 2. A primary molding resin part and / or a secondary molding resin part, or both, at the same time as the mold opening of the secondary molding cavity mold and the core mold, or after the mold opening, only the base sheet is peeled off. The method for producing a two-color molding simultaneous painted article according to claim 1, wherein only the transfer layer is transferred onto the sheet. 3. The method for producing a two-color molding simultaneous decorative article according to claim 1, wherein resins having mutually different colors are used as the primary molding resin and the secondary molding resin. 4. The method for producing a two-color molding simultaneous painted article according to claim 1, wherein resins having mutually different hardness are used as the primary molding resin and the secondary molding resin.