JP4048863B2 - How to color decorative items - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a coloring method for a decorative product, and more particularly, to a metal plating tone coloring method for a decorative three-dimensional molded product such as a display panel.
[0002]
[Prior art]
As a method for coloring a decorative item such as a display panel in a metal plating tone, plating such as vapor deposition or hot stamping is known.
[0003]
[Problems to be solved by the invention]
In the conventional coloring method, any of the processing methods may be expensive as a manufacturing method depending on the product shape or the required quality required for the product. In the method using hot stamping, for example, when coloring a decorative product having a complicated shape such as a three-dimensional molded product formed from four different flat surfaces, it is necessary to perform hot stamping on the four flat surfaces individually for each flat surface. It is difficult to perform hot stamp processing on the ridge line portions of adjacent planes. In addition, when performing hot stamp processing so as to overlap the ridge line portions of adjacent planes, the overlapping portion of the hot stamp is conspicuous due to the influence of gloss such as metal plating toning, etc. There is a risk of damage.
[0004]
Further, when plating is performed by vapor deposition, it is necessary to use hexavalent chromium or the like as the metal material in order to give a metallic plating-like luster. In recent years, there has been a social demand to refrain from using environmentally hazardous substances such as hexavalent chromium due to environmental problems.
[0005]
The present invention has been made in consideration of such circumstances, and its purpose is to produce a decorative three-dimensional molded article without using a harmful metal material such as hexavalent chromium as a metallic plating-like gloss material. The object of the present invention is to provide a coloring method for coloring decorations.
[0006]
Another purpose is to make decorative three-dimensional molded products with complex shapes such as rings that can be colored without the use of harmful metallic materials such as hexavalent chromium as a glossy material with metal plating. It is in providing the coloring method of the decoration product which can be colored.
[0007]
[Means for Solving the Problems]
According to claim 1 of the present invention, in the coloring method of a decorative product for coloring a decorative three-dimensional molded product formed by a plurality of different planes or curved surfaces,
A vapor-deposited film for attaching and coloring a decorative three-dimensional molded product is formed on one side of the substrate with a vapor-deposited layer for displaying metal-plated gloss and an adhesive that adheres the object to be deposited. Are formed by sequentially laminating adhesive layers, and coloring a metal plating tone by depositing a vapor-deposited film on a previously formed decorative three-dimensional molded product,
A heating step of heating a vapor deposition film in which a vapor deposition layer and an adhesive layer are laminated on a substrate to a temperature at which softening is possible;
The vapor deposition film is placed on the decorative three-dimensional molded product held by the mold, and the portion of the mold where the decorative three-dimensional molded product does not overlap is masked with a heat-resistant film, and the vacuum pressure and the pneumatic pressure are controlled. of those press along by Ri deposited film on at least one the shape of the decorative three-dimensional molded article, and a drawing step of adhering the deposited film in a decorative three dimensional molded article by the pressing pressure.
[0008]
Thereby, as a method of coloring a metal plating tone, instead of directly coloring the decorative three-dimensional molded product, using a vapor deposition film having a vapor deposition layer, it is pressed against the decorative three-dimensional molded product, so that it is bonded. It is possible to use other materials without using harmful metal materials such as hexavalent chromium as the metallic plating-like luster material.
[0009]
According to claim 2 of the present invention, in the vapor deposition film, a clear layer made of a colored resin is laminated between the base material and the vapor deposition layer.
[0010]
As a result, when coloring a metal plating tone of a desired color, it is possible to ensure plating-like luster in the deposited layer and to visually stimulate the color of the metal by coloring the clear layer.
[0011]
According to claim 1 of the present invention, in the drawing process, the gastric content decorative such have three dimensional molded article overlap of the mold to hold the decorative three-dimensional molded articles, are masked with a film having heat resistance .
[0012]
This makes it possible to protect the mold using a heat-resistant tape such as Teflon (registered trademark). As a result, unnecessary transfer to the mold can be prevented.
[0013]
According to claim 3 of the present invention, the decorative three-dimensional molded product is preliminarily formed with at least one of a scale and a number by printing, painting or a tape mask, and then adhering a deposited film in a drawing process, Peel off the printed part, the painted part or the tape masked part.
[0014]
As a result, when coloring a decorative three-dimensional molded product such as a dial for vehicles or other display boards, it is possible to form a dial with a metal plating tone.
According to the fourth aspect of the present invention, in the drawing step, the adhesive layer is pressed against the adherend surface of the decorative three-dimensional molded product in the vapor deposition film.
[0015]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments embodying the coloring method of a decorative product of the present invention will be described with reference to the drawings. FIG. 1 is a schematic cross-sectional view showing a decorative three-dimensional molded product to which a coloring method for a decorative product according to this embodiment is applied. FIG. 2 is a cross-sectional view showing each manufacturing process related to the coloring method of the decorative product of the present embodiment by process. FIG. 2 (a) shows a heating process, and FIG. 2 (b) shows a drawing process. It is typical sectional drawing. FIG. 3 is a front view showing an automotive indicating instrument equipped with the decorative three-dimensional molded product shown in FIG. 1. 4 is a cross-sectional view taken along line IV-IV in FIG. FIG. 5 is a partially enlarged front view of FIG.
[0016]
As the decorative three-dimensional molded product 5 to which the coloring method of the decorative product of the present invention is applied, a ring portion having a three-dimensional shape and made of a resin material such as a thermoplastic resin or a thermosetting resin, as shown in FIG. is there. The decorative three-dimensional molded product 5 is not limited to the ring portion, and may be a decorative product made of any resin as long as it is a three-dimensional molded product formed by a plurality of different flat surfaces or curved surfaces.
[0017]
In the present embodiment, the decorative three-dimensional molded product 5 will be described below with a ring portion. The ring portion 5 is provided in a part of a three-dimensional molded product such as a dial or other display panel, for example, and stimulates the three-dimensional effect visually. A method for coloring the ring portion 5 with a metal plating tone will be described later.
[0018]
As shown in FIG. 3 and FIG. 4, the ring unit 5 is adopted and is equipped with an automobile indicating instrument (hereinafter referred to as an indicating instrument) 100 having an instrument panel 50 as a display panel. is there.
[0019]
As shown in FIG. 3, the indicating instrument 100 includes a vehicle speedometer 10, a tachometer 20 that displays the number of revolutions of the vehicle engine, a water temperature meter 30 that displays the temperature of the engine coolant of the vehicle, and a fuel remaining amount of the vehicle. A fuel gauge 40 to be displayed is included. The indicator instrument 100 is not limited to the so-called combination meter shown in FIG. 3, and is an indicator instrument that displays one of various kinds of information related to the driving state of the vehicle (specifically, vehicle or engine) such as the vehicle speedometer 10. Also good. The vehicle speedometer 10, the tachometer 20, the water temperature gauge 30, and the fuel gauge 40 are configured such that the pointers 12, 22, 32, and 42 are driven to rotate by a driving device 11 described later. Moreover, as shown in FIG. 3, the indicating instrument 100 includes an instrument panel 50 as a display panel. The instrument panel 50 is provided with substantially arc-shaped dials 51, 52, 53, and 54 that are instructed by the hands 12, 22, 32, and 42 to display vehicle information. All of these dials 51, 52, 53, 54 have the same structure or an equivalent structure.
[0020]
Hereinafter, in the present embodiment, the internal structure of the indicating instrument 100 will be described with the vehicle speedometer 10 in order to avoid duplication of description. As shown in FIG. 4, the indicating instrument 100 includes an instrument panel 50, a light guide plate 60 disposed on the back side (right side in FIG. 4) of the instrument panel 50 as viewed from the viewpoint of the driver, and the back side thereof. A circuit board 70 such as a printed circuit board, a plurality of light sources 71 mounted on the front surface side (instrument board 50 side) of the circuit board 70, a drive device 11 that rotationally drives the pointer 12, and these drive devices 11 Etc., including a casing 80 that accommodates the like. The details of the light guide plate 60, the circuit board 70, the light source 71, and the driving device 11 are omitted because they are not the main parts related to the coloring method of the decorative product of the present invention.
[0021]
As shown in FIG. 4, the instrument panel 50 includes a facing plate 55. As shown in FIG. 4, the facing plate 55 has a shape that rises in an annular shape from the outer peripheral portion of the instrument panel 50 toward the vehicle interior side. The facing plate 55 may be formed integrally with the resin sheet-like instrument plate 50. Furthermore, as shown in FIG. 4, the facing plate 55 (specifically, the vehicle interior side outer peripheral end 55a of the facing plate 55) is connected to the casing 80 (specifically, the vehicle interior side annular opening end portion 81 of the casing 80). It may be configured to be sandwiched between the front panel 90 (specifically, the outer peripheral end 91 of the front panel 90). The front panel 90 is made of resin or glass and serves as a black face or the like that covers the vehicle interior side annular opening 80a of the casing 80.
[0022]
As shown in FIGS. 4 and 5, the dial 51 is formed by projecting ring-shaped raised portions 51b1 and 51b2 from a substantially arc-shaped central portion 51a on which characters 51s are displayed. As shown in FIG. 5, the raised portions 51b1 and 51b2 are not limited to a shape consisting of two planes with the ridge line portions of adjacent planes as the top, but may be a single plane extending in parallel with the direction along the central portion 51a. Good. Thereby, the raised portions 51 b 1 and 51 b 2 decorate the outer periphery of the dial 51. Moreover, as shown in FIG. 4, the outer periphery of the center part 51a and the inner periphery of the raised parts 51b1 and 51b2 are connected by a scale part 51c having a tapered cross section (see FIGS. 4 and 5). The scale portion 51c displays a scale 51s and is formed in a ring shape. In addition, as shown in FIG. 4, the wall part extended substantially perpendicularly with respect to the outer part 50a between the outer peripheral side part of the protruding parts 51b1 and 51b2 and the outer part 50a of the dial 51 in the instrument panel 50 51e is formed.
[0023]
Here, the raised portions 51b1 and 51b2, the scale portion 51c, and the wall portion 51e are formed in a substantially ring shape, and constitute a part of the instrument panel 50 (specifically, the dial 51). That is, the raised portions 51 b 1 and 51 b 2, the scale portion 51 c, and the wall portion 51 e constitute the ring portion 5. The ring portion 5 may be formed integrally with the resin sheet-like instrument panel 50, or may be formed as a separate member and then assembled integrally by bonding or the like. In the present embodiment, the ring portion 5 will be described as being integrally formed with the resin sheet-like instrument panel 50. The raised portions 51b1 and 51b2, the scale portion 51c, and the wall portion 51e are hereinafter referred to as a ring-shaped resin portion 5a.
[0024]
In addition, as a manufacturing method which forms the ring part 5 integrally with the instrument board 50, the resin-made sheet | seat etc. which consist of polycarbonate (PC) resin, methacryl (PMMA) resin, or acrylonitrile butadiene styrene (ABS) resin etc., for example By applying a drawing process to the resin sheet 500 (see FIG. 2B), the ring portion 5 and the instrument panel 50 can be integrally formed. The ring portion 5 shown in FIG. 1 is a cross-sectional view around the ring portion 5 in the instrument panel 50.
[0025]
Here, the structure which gives the ring part 5 of this invention the decoration of a metal plating tone, and the coloring method of the ring 5 are demonstrated below according to FIG. 1 and FIG. As shown in FIG. 1, the ring portion 5 includes a ring-shaped resin portion 5 a as a part of the instrument panel 50, and a vapor deposition film 5 b that adheres to the ring-shaped resin portion 5 a. This vapor deposition film 5b is a resin film material 510 for adhering to the ring-shaped resin portion 5b, and on one surface of the resin base material 511, as shown in FIG. The adhesive layer 514 is laminated in this order. As a resin material for forming the substrate 511, a polycarbonate (PC) resin, a polyethylene terephthalate (PET) resin, or the like can be used. The vapor deposition layer 513 is formed of a material that gives a plating-like luster, and a metal material such as aluminum or silver can be used as the material without using a harmful metal material such as hexavalent chromium. The adhesive layer 514 is formed by applying or printing an adhesive.
[0026]
Thus, as a method for decorating, ie coloring, a metal-plated tone, instead of coloring the ring portion 5 (specifically, the ring-shaped resin portion 5a), the vapor deposition layer 513 that visually stimulates the gloss of the plating tone is provided. It is possible to adhere to the ring-shaped resin portion 5b using the resin film material 510 (see FIG. 2B). As a result, it is possible to use other materials as the metallic plating-like gloss material without using harmful metal materials such as hexavalent chromium.
[0027]
In this embodiment, the resin film material 510 has a clear layer 512 laminated between the base material 511 and the vapor deposition layer 513. The clear layer 512 is made of a colored resin. Accordingly, it is possible to ensure the luster of the plating tone by the vapor deposition layer 513 and to visually stimulate the color of the metal by the coloring of the clear layer 512.
[0028]
Next, a method for coloring the ring 5, that is, a manufacturing method for depositing the vapor deposition film 5b (specifically, the resin film material 510) on the ring-shaped resin portion 5a will be described below.
[0029]
As shown in FIG. 2, the coloring method of the ring 5 as a decorative three-dimensional molded product includes a heating process P100 and a drawing process P200 when the flow of coloring the ring 5 is represented by a process. .
[0030]
First, in the heating step P100 shown in FIG. 2A, the resin film material 510 is heated to at least a glass transition point or a softening temperature by a heating means (not shown). Thereby, the elastic modulus of the resin film material 510 can be lowered to such an extent that it can be deformed by pressure or the like from the outside.
[0031]
Next, in the drawing process P200 shown in FIG. 2B, the resin film material 510 heated in the heating process P100 is disposed on the ring-shaped resin portion 5a. At this time, the ring-shaped resin portion 5a is held by a mold 800 that can supply at least one of vacuum air and compressed air. After that, at least one of vacuum air and compressed air supplied into the mold 800 (both vacuum air and compressed air in FIG. 2B) is brought into close contact with the ring-shaped resin portion 5a. The resin film material 510 is pressed. As a result, the resin film material 510 can be bonded to the ring-shaped resin portion 5a. Therefore, as shown in FIG. 1, the vapor deposition film 5b (specifically, a predetermined resin film material 510) can be adhered, that is, adhered to the ring-shaped resin portion 5a.
[0032]
In addition, by applying a predetermined pressure to the adhesive layer 514 of the resin film material 510 with compressed air or the like at a temperature in accordance with a predetermined bonding condition, the predetermined resin film material 510, that is, the vapor deposition film 5b is attached to the ring-shaped resin. It is possible to uniformly adhere to the portion 5a with an appropriate adhesive force.
[0033]
Furthermore, in the present embodiment, as shown in FIG. 2B, in the mold 800 that holds the ring-shaped resin portion 5a, a mold portion that does not overlap with the ring-shaped resin portion 5a is attached to a Teflon (however, The product is covered with a heat-resistant tape 810 such as a registered trademark. Thereby, it is possible to protect the part which does not need the metal plating-like process from the resin film material 510. As a result, unnecessary transfer to the mold can be prevented. In the present embodiment, the Teflon (however, registered trademark) tape 810 has been described as the covering member for protecting the mold 800. However, the mold does not overlap the ring-shaped resin portion 5a with a heat-resistant film. The part may be masked.
[0034]
Furthermore, in this embodiment, as shown in FIG. 5, in the instrument panel 50, that is, the dial 51, the ring portion 5, that is, the ring-shaped resin portion 5a (the raised portions 51b1, 51b2, the scale portion 51c, and the wall portion 51e). The scale 51s is previously formed by the tape mask 820 in the figure scale part 51c shown in FIG. After the vapor deposition film 5b is bonded to the ring-shaped resin portion 5a in the drawing process P200, the tape mask 820 is peeled off. Accordingly, the scale 51cs can be turned on by illumination light from the light source 71 that has passed through the light guide plate 60. As a result, it is possible for the driver to easily see the scale 51cs. Not only the tape mask 820 but also printing or painting that can be peeled off after the drawing process P200 is completed. Further, the tape mask 820 is not limited to the scale 51cs but may be at least one of the scale and the characters 51cs. Therefore, when coloring the dial 51 for vehicles and other display boards 51, it is possible to form the dial of a metal plating tone.
[Brief description of the drawings]
FIG. 1 is a schematic cross-sectional view showing a decorative three-dimensional molded product to which a coloring method for a decorative product according to an embodiment of the present invention is applied.
FIGS. 2A and 2B are cross-sectional views showing each manufacturing process related to the coloring method for a decorative product according to the embodiment of the present invention, wherein FIG. 2A is a heating process, and FIG. 2B is a drawing process. It is a typical sectional view showing.
FIG. 3 is a front view showing an automotive indicating instrument equipped with the decorative three-dimensional molded product shown in FIG. 1;
4 is a cross-sectional view taken along line IV-IV in FIG.
FIG. 5 is a partially enlarged front view of FIG. 3;
[Explanation of symbols]
5 decorative three-dimensional molded product (ring part)
5a Ring-shaped resin part 5b Deposition film 100 Indicator instrument 50 Instrument panel 51 Dial 51a Central part 51b1, 51b2 Raised part 51c Scale part 51e Wall part 500 Resin sheet 510 Resin film material (deposition film)
511 Substrate 512 Clear layer 513 Deposition layer 514 Adhesion layer 800 Mold 810 Heat-resistant tape (film having heat resistance)
820 Tape mask P100 Heating process P200 Drawing process

Claims (4)

In the coloring method of the decorative product that colors the decorative three-dimensional molded product formed by different planes or curved surfaces,
A vapor deposition film for attaching and coloring the decorative three-dimensional molded product is formed on one surface of the base material with a vapor deposition layer for displaying a gloss of metal plating tone and an adhesive for adhering the object to be adhered. The adhesive layer is formed by laminating sequentially, and is a method of coloring a metal plating tone by attaching the vapor deposition film to the previously formed decorative three-dimensional molded product,
A heating step of heating the vapor-deposited film in which the vapor-deposited layer and the adhesive layer are laminated on the substrate to a temperature at which softening is possible;
The vapor deposition film is disposed on the decorative three-dimensional molded product held by a mold, and a portion of the mold where the decorative three-dimensional molded product does not overlap is masked with a heat-resistant film, and vacuum pressure is applied. and pressure of the deposition film Ri by at least either abuts pushed along the shape of the decorative three-dimensionally shaped article of pressure, the diaphragm to adhere by the pressing pressure of the deposition film in the decorative three-dimensional molded article A coloring method for a decorative product, comprising a processing step.   The coloring method of the decorative article according to claim 1, wherein a clear layer made of a colored resin is laminated between the base material and the vapor deposition layer. In the decorative three-dimensional molded product, after at least one of the scale and the number is formed by printing or painting or a tape mask, the vapor deposition film is adhered in the drawing step, and then the printed part or the The method for coloring a decorative article according to claim 1 or 2, wherein the painted part or the tape masked part is peeled off . The decorative article according to any one of claims 1 to 3, wherein, in the drawing process, the adhesive layer is pressed against an adherend surface of the decorative three-dimensional molded article in the vapor-deposited film. Coloring method.

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