JP2947016B2 - Resin product and manufacturing method thereof - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to plating a resin base material.
The present invention relates to a resin product having a layer and a coating layer formed thereon, and a method for producing the same.

[0002]

2. Description of the Related Art Conventionally, as this kind of resin products, there are decorative articles for exterior such as front grills and back panels for vehicles. For example, in a front grill, a plating layer is formed on a predetermined portion of the front surface (design surface) of the front grill, and a coating layer is formed on other portions (however, the design surface). As described above, a front grill having a plating layer partially and at least a coating layer formed on at least a part of other portions is manufactured, for example, as follows.

[0003] First, a grill body made of ABS resin is subjected to electroless plating and electroplating. Then
A plating layer including an electroless plating layer and an electroplating layer is formed on the entire surface of the grill main body. Then, the part where the plating layer is to be left is covered with an electroformed mask,
A primer is applied to other portions to form a primer layer. Thereafter, a predetermined paint is applied on the primer layer to form a coating layer. Then, by releasing the covering with the electroformed mask, the above-described front grille is obtained.

[0004]

However, in the above prior art, the plating layer is formed on all surfaces of the grill main body. For this reason, a plating layer is formed even on a portion where plating is not required, which causes an increase in manufacturing cost.

[0005] Further, although the coating layer is made of a resin material, it must be formed by coating on the surface of a metal material called a plating layer. In this case, since the joining between the two is a joining between different kinds of materials, the joining force is small.
Therefore, conventionally, in order to improve the joining force between the two,
A primer was applied between the plating layer and the coating layer to form a primer layer. For this reason, the number of man-hours is increased by the number of steps, and the cost is increased. Further, even if the primer layer is formed as described above, since the primer layer is also made of a resin material, there is still a problem in terms of bonding strength, and furthermore, durability.

[0006] Further, since the portion where the coating layer is formed has a plating layer, a primer layer and a coating layer on the grill body, the film thickness becomes extremely large as a whole, and the appearance quality becomes high. Could be impaired.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and an object of the present invention is to provide a coating film layer on a substrate.
It is possible to improve the durability performance by joining
Also improve the appearance quality and the man-hours and cost
Resin product capable of reducing weight and method of manufacturing the same
Is to provide.

[0008]

In order to achieve the above object, according to the first aspect of the present invention, a small amount of resin on a resin substrate is used .
At least a method for manufacturing a resin product having a plating layer and a coating layer formed on a design side , wherein the electroless plating layer is cut off at the bottom when the base material is subjected to electroless plating. The groove is formed in an annular shape, and after electroless plating is performed on the base material, the electroless plating is performed, so that the electroless plating layer and the electroplating layer on the electroless plating layer are bordered by the groove. And a portion where the substrate is exposed, and thereafter, a coating layer is formed on the portion where the substrate is exposed.

According to the second aspect of the present invention, there is provided the first aspect.
In the method for producing a resin product according to the item (1), the groove is provided along a parting part formed of a step or a groove and formed to be annular or part of an annular shape. According to a third aspect of the present invention, in the method of manufacturing a resin product according to the first or second aspect, the groove is formed to have a substantially V-shaped cross section. According to the invention as set forth in claim 4, a coating part is formed on the resin base material so as to be formed of a step or a groove and to form a ring or a part of a ring. V
Forming a U-shaped groove in an annular shape, forming a plating layer with the groove as a boundary, and a coating layer directly coated on the surface of the base material, and forming at least the plating layer and the coating layer in a design surface
On the side.

[0010]

Therefore, according to the present invention,
For example, if electroless plating is applied to the substrate, the electroless plating
The electroless plating layer is formed at the bottom of the groove.
Severed in the department. After this, perform electrolytic plating
The electroless plating layer and the electroless
A plating layer comprising an electroplating layer on the plating layer;
A portion where the material is exposed is formed. Then the substrate is exposed
A resin product is obtained by forming a coating layer on the
It is. In this way, the coating film is directly coated on the substrate.
The ply that was conventionally required when forming a coating layer
The need for a mer layer is eliminated.

According to the second aspect of the present invention,
When forming a coating layer by providing a coating on the
It is possible to make the end of the body abut on the parting part
You. Here, in practice, the substrate has a surrounding ring during molding.
Variations in dimensions due to boundaries, etc.
Even in the formed state, the dispersion similarly occurs. others
Therefore, usually, the coating film is taken into consideration in consideration of variations in its dimensions.
Since the body is formed with slightly larger dimensions,
A gap is created between the plating layer surface and the plating layer.
May be confused. In such a case, when forming a coating layer
Paint enters through the gap at the end of the coating
U. In the present invention, as described above, the end of the coating is painted off.
Because it is possible to abut on the part, paint in the gap
Penetration can be prevented as much as possible. Therefore,
It is possible to form a good breakout between the plating layer and the coating layer.
The appearance quality can be further improved.

Further, according to the invention described in claim 3, according to the present invention,
By forming the groove in a substantially V-shaped cross section, the bottom of the groove is
Of the electroless plating layer is reliably performed. Claim
According to the invention as set forth in claim 4, according to claims 2 and 3,
In the same way as in the invention,
If there is a gap between the layer and its coating,
Part prevents paint from entering the gap as much as possible
It is. Therefore, a good close-up between the plating layer and the coating layer
Can be formed to further improve the appearance quality
be able to. Also, the coating layer is applied directly on the surface of the substrate.
Is different from conventional resin products.
The plating layer and primer layer are not interposed.
The thickness of the wound is reduced. Moreover, coating layers and substrates
Are made of resin material, so that the coating layer is
It is firmly joined.

[0013]

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS First Embodiment A first embodiment in which the present invention is embodied in a front grill 1 for a vehicle as a resin product will be described below with reference to FIGS.

A front grill 1 as shown in FIG. 2 is mounted on the front of the vehicle. As shown in FIGS. 1 to 3, the front grill 1 includes a front grill main body (hereinafter, referred to as a grill main body) 2 as a base made of ABS resin, and has a part of its design surface, that is, a front surface. It has a plating layer 3 (part shown in a mesh shape in FIG. 3) formed on a part thereof, and a coating layer 4 applied and formed on portions other than the plating layer 3 (excluding a part of the back side). ing. More specifically, the front grille 1 includes a frame 5 having a substantially rectangular front surface, a plurality of sub-partition plates 6 extending in the horizontal direction in the frame 5, a plurality of connecting plates 7 extending in the vertical direction in the frame 5, and a center. Mark plate at part (not shown)
And a main partition plate 9 extending from the frame 5 toward the mounting plate 8. The plating layer 3 is formed mainly on the front side of the frame 5 and on the front side of the main partition plate 9. The coating layer 4 is formed mainly on the front side of the sub-partition plate 6, the mounting plate 8, and the connecting plate 7.

FIG. 4 is an enlarged front view showing a part (a portion of FIG. 3) of the main partition plate 9, and FIG.
It is a line sectional view. As shown in these figures and FIG. 1, in the front side portion of the grill main body 2, at the boundary between the plating layer 3 and the coating layer 4, a coating projecting vertically from the frame 5 and the main partition plate 9. Front side step part 10 as parting part
Are formed in an annular shape. And this front side step part 1
At 0, a groove 11 having a substantially V-shaped cross section is formed in an annular shape (closed curve shape) (see FIG. 3). FIG. 6 is an enlarged rear view showing a part of the rear side of the frame 5 (part β in FIG. 3). As shown in the figure, a groove 13 having a substantially V-shaped cross section is formed annularly at a boundary portion between the plating layer 3 and a portion where the plating layer 3 is not formed on the back surface side portion of the grill main body 2. (See FIG. 3). Furthermore, the grill body 2
An electrode projection 14 protruding in the rear direction (rearward direction of the vehicle) is formed on the rear side (see FIG. 3).

As shown in FIG. 1, the plating layer 3 includes an electroless plating layer 15 and an electroplating layer 16. In this embodiment, the electroless plating layer 15 is formed of nickel to a thickness of about “0.3 to 0.4 μm”. Further, the electroplating layer 16 is formed of three kinds of metals of copper, nickel and chromium and has a thickness of about 20 to 50 μm, and has a multilayer structure.

Each of the grooves 11 and 13 has a width W of "0.5 mm" and a depth D of "0.5 mm". However, the width W is not particularly limited, but is preferably "0.2 mm" or more from the viewpoint of processing, and is preferably "1.0 mm" or less from the viewpoint of improving design. Also, the depth D is not particularly limited, but is preferably equal to or more than “0.2 mm” in view of the processing limitation, and “0.
6 mm "or less is preferable. Further, the ratio (D / W) of the depth D to the width W is preferably "1.0" or more.

Further, the front side step portion 10 has a height of at least "1.5 mm". This height is
This is the minimum value required for die processing in order to mold the groove 11.

Next, a mold 21 for molding the grill main body 2 will be described. As shown in FIG. 7, the mold 21 includes a fixed mold 22 and a movable mold 23. A cavity 24 for forming the grill main body 2 is formed by the two dies 22 and 23. However, the movable groove 23 (or the fixed die 22) has the grooves 11, 13
Are formed integrally with each other.

Next, the operation and effects of manufacturing the above-described front grill 1 will be described. First,
The ABS resin melted into the cavity 24 is injected and filled by a known mold molding method (see FIG. 7). When the resin is cooled and solidified, the molds 22 and 23 are opened, and the grill body 2 is taken out. At this time, both types 22, 2
3 is opened in parallel with the mold opening direction, that is, in a direction in which the protrusions 26 and the like come off. Therefore, the opening of the mold is not hindered by the projections 26 and the like, and the grill main body 2 can be easily taken out. In this way, the grill main body 2 in which the grooves 11 and 13 are respectively formed at predetermined positions in a ring shape is obtained.

Subsequently, the grill body 2 is immersed in an electroless plating solution to perform electroless plating. At this time, as shown in FIG. 8, the plating solution does not reach the bottoms 11a and 13a of the grooves 11 and 13 because the gap between the gaps is small (however, in FIGS. Although only the front groove 11 will be described, the same applies to the rear groove 13). Therefore, these bottoms 1
No plating is applied to 1a and 13a. In other words,
An electroless plating layer 15 is formed on all portions of the surface of the grill main body 2 except for the bottom portions 11a and 13a.

Next, as shown in FIG. 9, the grill main body 2 on which the electroless plating layer 15 is formed is subjected to electroplating.
That is, the main body 2 is immersed in a predetermined electroplating solution a plurality of times, and the portions requiring plating (mainly the front side portion of the frame 5 and the front side portion of the main partition plate 9) are electrically conducted. At this time, the electrode projections 14 protruding from the back side of the grill main body 2 constitute one electrode. Then, the electroless plating layer 15 formed in a portion that does not require plating is dissolved by the electroplating solution. Also, where plating is required,
On the surface of the electroless plating layer 15, the electroplating layer 16 having the above-mentioned multilayer structure is formed (the lower side in the figure). In this way, the grill main body 2 on which the electroless plating layer 15 and the electroplating layer 16 (plating layer 3) are formed only in the portions requiring plating is formed.

Thereafter, as shown in FIG.
Is formed with an electroformed mask 27.
That is, the electroformed mask 27 is a metal plate having a thickness of “several mm” and has a shape conforming to the shape of the front grill 1. An opening 28 is formed in the electroformed mask 27 so as to open only a portion necessary for forming the coating layer 4. Due to the coating of the electroformed mask 27, a portion necessary for forming the coating layer 4 is exposed from the opening 28. Then, as shown in FIG. 11, spray coating is performed on the exposed portion. By this coating, a coating film layer 4 is formed at a necessary portion of the coating film.

After the coating layer 4 is formed, the front grille 1 is obtained by releasing the coating of the electroformed mask 27 as shown in FIG. That is, the plating layer 3 is mainly provided on the front side portion of the frame 5 and the front side portion of the main partition plate 9, and the sub partition plate 6 and the mounting plate 8 are provided.
In addition, the front grill 1 having the coating layer 4 mainly on the front side portion of the connecting plate 7 is obtained.

According to this embodiment, when forming the electroless plating layer 15, the bottoms 11a of the grooves 11, 13 are formed.
The electroless plating layer 15 is not formed on 13a. For this reason, when forming the electroplating layer 16, only portions that require plating are electrically conducted. That is, the electroless plating layer 15 formed in a portion that does not require plating is dissolved by the electroplating solution. In a portion requiring plating, the electroplating layer 16 having the above-described multilayer structure is formed on the surface of the electroless plating layer 15. Therefore, at this stage, the grill main body 2 in which the plating layer 3 is reliably formed only in the necessary portions is obtained. Therefore, when the coating layer 4 is formed, the coating layer 4 is directly formed on the grill body 2 without the intervention of the primer layer.
Can be formed.

As a result, the step of forming the primer layer is not required, so that the number of working steps and the cost can be reduced. In addition, since it is not necessary to form the electroplating layer 16 on the entire surface of the grill main body 2, the cost can be reduced accordingly.

In the front grill 1, the coating layer 4 is formed directly on the grill main body 2.
Therefore, the thickness of the portion is reduced by the amount that the plating layer 3 and the primer layer are not interposed. As a result, the thickness of the coating layer 4 can be reduced, and the appearance quality can be improved. Furthermore, since the coating layer 4 and the grill main body 2 are both made of a resin material, the coating layer 4 can be firmly joined to the grill main body 2. Therefore, the coating layer 4 of the front grill 1
The durability performance of the part can be improved.

In addition, in this embodiment, the groove 11 on the front side serves as a boundary between the coating layer 4 and the plating layer 3. For this reason, the parting part of the boundary part is formed not in a zigzag shape but sharply. As a result, the parting line can be made clear and clear, and the appearance quality can be further improved.

Second Embodiment Next, a second embodiment in which the present invention is embodied in an outer cover 31 for a door mirror bracket for a vehicle as a resin product will be described with reference to FIGS. However, in this embodiment, the main parts of the invention are almost the same as those of the first embodiment, and therefore, the description will be made focusing on the differences.

In recent years, a door mirror has been generally attached to a door mirror bracket at a front portion of a door of a vehicle such as an automobile. However, some users mount a conventional so-called fender mirror instead of the door mirror. In this case, an outer cover 31 as shown in FIG. 12 is attached to the door mirror bracket for the purpose of covering the bracket mounting portion and the like.

The outer cover 31 is formed in a substantially triangular planar shape. The outer cover 31 includes an outer cover body 32 (see FIG. 13) as a base material made of ABS resin, and is formed on a part of the design surface (including a part of the non-design surface) (the lower part in FIG. 12). Plated layer 33
And a coating layer 34 applied to a portion other than the plating layer 33 (excluding the non-designed surface; the upper part of FIG. 12).

On the design surface side of the outer cover body 32, a boundary between the plating layer 33 and the coating layer 34
A groove 35 as a paint parting part is formed in an annular shape.
As shown in FIGS. 12 and 14, in the outer cover main body 32 including the groove 35, a groove 36 having a substantially V-shaped cross section is formed in a ring shape (closed curved shape) across the design surface and the non-design surface. Is formed. On the non-design surface side of the outer cover main body 32, an electrode protrusion 37 is formed so as to protrude toward the non-design surface side (inward of the vehicle). The electrode projection 37 may be removed at the time of use.

Further, as shown in FIG.
3 has an electroless plating layer 38 and an electroplating layer 39 formed thereon as in the first embodiment. Next, an operation and an effect in manufacturing the outer cover 31 for the door mirror bracket will be described.

First, the outer cover body 31 having the groove 36 formed in a predetermined position in an annular shape is immersed in an electroless plating solution to perform electroless plating. At this time, the plating solution does not reach the bottom 36a of the groove 36 because the gap is narrow. Therefore, the bottom portion 36a is not plated, and the electroless plating layer 38 is formed on all portions except the bottom portion 36a.

Next, the outer cover body 32 on which the electroless plating layer 38 is formed is subjected to electroplating. At this time,
As in the first embodiment, an electrode projection 37 protruding from a non-design surface side portion of the outer cover main body 32 is used as one electrode. Then, a portion that does not require plating (FIG. 13)
The electroless plating layer 38 formed on the (upper part) is dissolved by the electroplating solution. In a portion requiring plating (the lower part in FIG. 13), the electroplating layer 39 having the above-described multilayer structure is formed on the surface of the electroless plating layer 38. In this way, the electroless plating layer 38 and the electroplating layer 39 are provided only in a portion requiring plating.
The outer cover main body 32 on which the (plating layer 33) is formed is formed.

Thereafter, similarly to the first embodiment, the portion where the plating layer 33 is formed is covered with an electroformed mask (not shown). Then, spray coating is performed on the exposed portion. By this coating, a coating film layer 34 is formed at a necessary portion of the coating film. After the coating layer 34 is formed,
By releasing the coating of the electroformed mask, the outer cover 31 is obtained. That is, the outer cover 31 having the plating layer 33 in the lower part and the coating layer 34 in the upper part of the design surface can be obtained. In this embodiment, the same operation and effect as those of the first embodiment can be obtained.

Third Embodiment Next, a third embodiment in which the present invention is embodied in a vehicle back panel 51 as a resin product will be described with reference to FIGS. However, also in this embodiment, the main parts of the invention are almost the same as those in the first and second embodiments, and
The following description focuses on the differences.

At the rear portion of the vehicle where the license plate is mounted, a back panel 5 as shown in FIG.
1 is attached. The back panel 51 is formed in a substantially box shape partially having an opening. Back panel 51
Is a back panel body 52 as a base material made of ABS resin.
(See FIG. 16), a plating layer 53 formed in a substantially rectangular shape on a part (top) of the design surface, and an inner peripheral surface other than the plating layer 53 (excluding the non-design surface). And a coating layer 54 formed by application. Note that a red transparent decoration member 55 extending in the lateral direction is attached to an upper portion of the back panel main body 52.

As shown in FIGS. 17 and 18, in the back panel main body 52, the plating layers 5 on the inner peripheral side and the outer peripheral side are formed.
At the boundary between the coating layer 3 and the coating layer 54, an inner peripheral step 56 and an outer peripheral step 57 are formed in a ring shape, respectively, as a coating parting part similar to that described in the first embodiment. I have. The two stepped portions 56 and 57 are formed with annular grooves (closed curves) having substantially V-shaped cross sections, respectively. Further, a through hole 63 is formed in a portion covered with the decorative member 55. Further, on the back side of the portion covered with the decorative member 55, a non-design surface side direction,
That is, the electrode projection 60 is formed so as to protrude toward the front of the vehicle (see FIG. 16). In addition, a groove 64 is formed in an annular shape on the back side of the portion covered with the decorative member 55 so as to surround the through hole 63 and the electrode projection 60. The groove 64 blocks the conduction of plating to the outside.

In addition, the plating layer 53 has an electroless plating layer 61 and an electroplating layer 62 formed thereon, similarly to the above-described embodiments. The above back panel 51
Is also manufactured in the same manner as in the above-described embodiments. That is, the grooves 58, 59, 64 are provided at predetermined locations.
Apply electroless plating to the back panel main body 52 formed in a ring shape. Then, the bottom portions 58 of the grooves 58, 59 are formed.
In a and 59a, the plating solution does not reach because the gap is narrow. Therefore, these bottom portions 58a, 59a
Is plated, and an electroless plating layer 61 is formed on all portions except the bottom portions 58a and 59a. Thereafter, the back panel main body 52 on which the electroless plating layer 61 is formed is subjected to electroplating. At this time, as in the above-described embodiments, the electrode projection 60 formed to protrude from the back panel main body 52 serves as one electrode. Then, the electroless plating layer 6 formed on the portion (eg, the inner peripheral surface) that does not require plating is formed.
1 is dissolved by the electroplating solution. In a portion (top) requiring plating, the electroplating layer 6 having the above-described multilayer structure is formed on the surface of the electroless plating layer 61.
2 are formed. In this manner, the back panel main body 5 on which the electroless plating layer 61 and the electroplating layer 62 (plating layer 53) are formed only in portions requiring plating.
2 are formed.

Thereafter, similarly to the above-described embodiments, the portion where the plating layer 53 is formed is covered with an electroformed mask (not shown). Then, spray coating is performed on the exposed portion. By this coating, a coating layer 54 is formed at a necessary portion of the coating. After the coating layer 54 is formed, the covering of the electroformed mask is released, whereby the back panel 51 is obtained. That is, the back panel 51 having the plating layer 53 on the top and the coating layer 54 on the inner peripheral surface or the like is obtained. In this embodiment, the same operations and effects as those of the first and second embodiments are obtained.

In this embodiment, the electrode projections 6 are used.
Since 0 is formed on the non-designed surface side, the designability is not impaired by the projections 60. Further, the plating layer 53 formed on the non-design surface side only needs to be a portion surrounded by the groove 64. Therefore, it is possible to reduce the amount of the plating solution used as a whole, and it is possible to reduce the cost.

It should be noted that the present invention is not limited to the above-described embodiments, but may be implemented as follows, with a part of the configuration being appropriately changed without departing from the spirit of the invention. (1) In the first embodiment, the present invention is embodied in a front grille 1 for a vehicle, in the second embodiment, it is embodied in an outer cover 31 for a door mirror bracket for a vehicle, and in a third embodiment, a back panel 51 for a vehicle. However, the present invention may be embodied as, for example, a louver for a vehicle, a pillar garnish for a vehicle, a quarter vent for a vehicle, a mark plate for a vehicle, or the like. Further, the present invention is not limited to the above resin products, and the present invention may be embodied in other resin products having a plating layer and a coating layer.

(2) In each of the above embodiments, the resin material constituting the base material is made of ABS resin. However, other than that, for example, polypropylene, polyphenylene oxide, polyamide, polysulfone, polyester, etc. Various resin materials may be used.

(3) In each of the above embodiments, the electroless plating layers 15, 38, and 61 are formed of nickel, but may be formed of copper or the like. Further, in the above-described embodiment, the electroplating layers 16, 39, and 62 are formed of a three-layered metal of copper, nickel, and chromium so as to form a multilayer structure. However, other metals may be used. Further, the present invention may be embodied in a case where a multilayer structure is not used.

(4) In each of the above embodiments, the grooves 11, 13, 36, 58, 59, 64 are formed by the mold 21, but each groove is formed by an NC cutter, an ultrasonic cutter, or the like. May be formed by post-processing.

[0048]

As described in detail above, claims 1 to 4
According to the described invention, the coating layer is firmly joined to the substrate
The durability performance can be improved and the appearance quality
Improve and reduce man-hours and costs in manufacturing
be able to. According to the second and fourth aspects of the present invention,
If there is a gap between the coating and the plating layer
In the case, a good break-out is formed between the plating layer and the coating layer
Can further improve the appearance quality
be able to. Further, according to the third and fourth aspects of the present invention,
Ensures that the electroless plating layer is cut off at the bottom of the groove.
Can be done.

[Brief description of the drawings]

FIG. 1 is a partial sectional view showing a main partition plate of a front grille according to a first embodiment of the present invention.

FIG. 2 is a front view showing a front grill in the first embodiment.

FIG. 3 is a diagram showing a plated portion of a front grill in the first embodiment, and is a schematic diagram in which the front grill is developed on the front and the back.

FIG. 4 is an enlarged front view showing a part of a main partition plate of a front grill in the first embodiment.

FIG. 5 is a sectional view taken along line AA of FIG. 4 in the first embodiment.

FIG. 6 is a rear view showing a part of a front grille frame in an enlarged manner in the first embodiment.

FIG. 7 is an enlarged sectional view showing a part of a mold for molding a grill main body in the first embodiment.

FIG. 8 is a partial cross-sectional view showing a state where the grill main body is subjected to electroless plating in the first embodiment.

FIG. 9 is a partial cross-sectional view showing a state where an electroplating is applied to a grill main body on which an electroless plating layer is formed in the first embodiment.

FIG. 10 is a partial cross-sectional view showing a state in which a portion of the grill main body where a plating layer is formed is covered with an electroformed mask in the first embodiment.

FIG. 11 is a partial cross-sectional view showing a state where a coating layer is formed on a grill main body in a state where the electroforming mask is covered in the first embodiment.

FIG. 12 is a front view showing an outer cover for a door mirror bracket according to a second embodiment of the present invention.

FIG. 13 is a sectional view taken along line BB of FIG. 12 in a second embodiment.

FIG. 14 is a rear view showing the outer cover in the second embodiment.

FIG. 15 is a front view showing a back panel according to a third embodiment of the invention.

FIG. 16 is a side sectional view showing a back panel body according to a third embodiment.

FIG. 17 is a partial perspective view showing a top portion and the like of a back panel body to be plated in a third embodiment.

FIG. 18 is a sectional view taken along line CC of FIG. 15 in a third embodiment.

[Explanation of symbols]

2, a grill body as a base material, 3, 33, 53, a plating layer, 4, 34, 54, a coating layer, 10 a front step portion as a paint parting portion, 11, 13, 36, 58, 59 Groove, 11a, 13a, 36a, 58a, 59a ... bottom,
15, 38, 61 ... electroless plating layer, 16, 39, 62
... Electroplating layer, 27 ... Electroformed mask as coating, 3
2 ... Outer cover body as base material, 35 ... Groove as paint parting part, 52 ... Back panel body as base material,
Reference numeral 56 denotes an inner peripheral step as a paint parting part, and 57 an outer peripheral step as a paint parting part.

Continued on the front page (51) Int.Cl. ⁶ Identification symbol FI C25D 5/02 C25D 5/02 Z (72) Inventor Toshikazu Funabashi 1 Ochigochi Nagahata, Kasuga-cho, Nishikasugai-gun, Aichi Prefecture Toyoda Gosei Co., Ltd. 56) References JP-A-52-50937 (JP, A) JP-B-55-30013 (JP, B2) JP-B-52-21543 (JP, B2) JP-B-60-9599 (JP, B2) (58) ) Surveyed field (Int.Cl. ⁶ , DB name) C25D 5/56 C25D 5/02

Claims (4)

(57) [Claims] 1. A method for producing a resin product comprising a plating layer and a coating film layer formed on at least a design surface side of a resin substrate, wherein the substrate has no Form a groove that cuts off the electroless plating layer at the bottom when applying electroplating in a ring shape, apply electroless plating to the base material, and then perform electrolytic plating, with the groove as a boundary, A resin product that forms a plating layer comprising an electroless plating layer and an electroplating layer on the electroless plating layer, and a portion where the substrate is exposed, and then forms a coating layer on the portion where the substrate is exposed Manufacturing method. 2. The method for producing a resin product according to claim 1,
Fraud and mitigating risk the groove consists of stepped or grooved and cyclic or cyclic
Provided along the parting part formed to form a part
Manufacturing method for resin products. 3. Production of the resin product according to claim 1 or 2.
A method of manufacturing a resin product , wherein the groove is formed in a substantially V-shaped cross section.
Law. 4. A coating part formed of a step or a groove and formed in a ring or a part of a ring is provided on a resin base material, and has a substantially V-shaped cross section along the coating part. Forming a groove in an annular shape, forming a plating layer with the groove as a boundary, and a coating layer directly coated on the surface of the base material ,
A resin product provided with a plating layer and the coating layer at least on a design surface side .