JP2015120309A - Method for manufacturing three-dimensional emblem - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method for manufacturing a three-dimensional emblem capable of obtaining a three-dimensional shape closer to design values while improving flexibility.SOLUTION: There is provided a method for manufacturing a three-dimensional emblem, that includes: a lamination step of laminating a molding auxiliary layer on an other surface of a transparent resin layer to obtain an auxiliary laminate in a laminate in which a glossy layer is laminated on one surface of the transparent resin layer; a molding step of embossing and molding the laminate in which the molding auxiliary layer is laminated so that its transparent resin layer side projects; and a peeling step of peeling the molding auxiliary layer from the laminate.

Description

  The present invention relates to a method for manufacturing a three-dimensional emblem, and is suitable for obtaining a three-dimensional shape closer to a design value while increasing flexibility.

  Conventionally, a solid emblem having a metallic luster has been known as an emblem for decorating the surface of a car body of an automobile. For example, a solid emblem disclosed in Patent Document 1 below has been proposed.

  The three-dimensional emblem of Patent Document 1 below is a laminate composed of a thermoplastic synthetic resin film, a metallic gloss film deposited on one surface of the thermoplastic synthetic resin film, and a base material layer laminated on the surface of the metallic gloss film. A body is produced and the laminated body is processed into a three-dimensional shape.

JP2003-202808

  By the way, such a three-dimensional emblem is sometimes affixed to a curved surface portion of a vehicle body, and there is an increasing demand for a three-dimensional emblem having flexibility.

  For example, when the base material layer of the three-dimensional emblem of Patent Document 1 is omitted, the flexibility of the three-dimensional emblem can be increased by the amount that the base material layer is omitted. However, in this case, it is assumed that it is difficult to process the three-dimensional shape as designed at the time of processing.

  Then, this invention is providing the manufacturing method of the solid emblem which can obtain the solid shape close | similar to a design value, improving a softness | flexibility.

  In order to solve the above problems, the present invention provides a laminated body in which a glossy layer is laminated on one side of a transparent resin layer, and a laminated body is obtained by laminating a molding auxiliary layer on the other side of the transparent resin layer. A step of embossing the auxiliary laminated body so as to project the auxiliary auxiliary layer side, and a peeling step of removing the auxiliary auxiliary layer from the auxiliary laminated body. To do.

  According to such a manufacturing method, since the rigidity of the laminate can be increased by the molding auxiliary layer during emboss molding, a more faithful emboss shape can be transferred to the laminate even if the laminate has flexibility. it can. In addition, since the molding auxiliary layer is peeled off after embossing, the flexibility of the laminate can be used effectively. As a result, even if there is no base material layer, the solid emblem follows the curved surface part. Can be pasted. Thus, there is provided a method for manufacturing a three-dimensional emblem that can obtain a three-dimensional shape closer to the design value while increasing flexibility.

  Further, in the molding step, the transparent resin layer side protrudes by applying pressure from the molding auxiliary layer side in a state where the other surface of the gloss layer faces the convex mold surface for emboss molding. It is preferable to emboss.

  In this case, pressure can be applied to the side on which the rigidity of the laminate is increased by the molding auxiliary layer. For this reason, a more faithful emboss shape can be transferred to the laminate as compared with the case where pressure is applied from the glossy layer side with the molding auxiliary layer facing the mold surface for emboss molding.

  Further, prior to the peeling step, the method further includes a filling step of filling a concave portion formed on the other surface of the glossy layer by the molding step with a curable resin, and after the curable resin is cured, the peeling step is performed. Preferably it is done.

  In such a case, it is possible to suppress deformation of the laminated body due to peeling of the molding auxiliary layer compared to the case where the molding auxiliary layer is peeled from the laminated body before the filling step.

  Further, the filling step includes a step of pressing the sealing film with a pressing member against a first portion other than the concave portion on the other surface of the gloss layer, and the pressing member is disposed above the concave portion from the first portion. It is preferable to provide a step of passing the sealing film to the second portion other than the concave portion and attaching the sealing film to the gloss layer.

  In such a case, the rigidity of the laminate can be increased by the molding auxiliary layer even when the curable resin is filled. For this reason, even if a pressure is applied to a laminated body from a pressing member, it becomes possible to fill with curable resin, without changing the embossing shape formed in the said laminated body. Moreover, the intensity | strength in an embossed part can also be raised by hardening | curing curable resin with which the recessed part was filled.

  Thus, according to the present invention, it is possible to provide a method for manufacturing a three-dimensional emblem that can obtain a three-dimensional shape closer to the design value while increasing flexibility.

It is a figure which shows the cross section of the solid emblem in this embodiment. It is a flowchart which shows the manufacturing method of a solid emblem. It is a figure which shows the mode of a lamination process. It is a figure which shows the mode before the press in a formation process. It is a figure which shows the mode after the press in a formation process. It is a figure which shows the structural example of the filling apparatus used for a filling process. It is a figure which shows the mode before the filling in a filling process. It is a figure which shows the mode in the middle of the filling in a filling process.

(1) Embodiment An embodiment of the present invention will be described in detail with reference to the drawings. However, the present invention is not limited to the following embodiment.

(1-1) Configuration of Stereoscopic Emblem FIG. 1 is a diagram showing a cross section of the stereoscopic emblem 1 in the present embodiment. As shown in FIG. 1, the three-dimensional emblem 1 in this embodiment includes a transparent resin layer 10, a gloss layer 20, a filling layer 30, and a sealing film 40 as main components.

  The transparent resin layer 10 is a light-transmitting resin layer and is a layer located on the surface of the three-dimensional emblem 1. The resin used for this resin layer is not particularly limited as long as it has light transparency. Specific examples include acrylic resin, vinyl chloride resin, urethane resin, polyester resin, polycarbonate, polyamide, polyethylene, and polypropylene.

  Although the thickness of the transparent resin layer 10 is not specifically limited, Preferably it is 10 micrometers-300 micrometers. This is because if the thickness of the transparent resin layer 10 is less than 10 μm, sufficient durability may not be obtained. On the other hand, when the thickness of the transparent resin layer 10 exceeds 300 μm, the moldability may be hindered and the cost is increased.

  The gloss layer 20 is formed by laminating the transparent resin layer 10 on one surface, and is a layer that is glossy by light incident from the transparent resin layer 10. Examples of the material that gives the gloss layer 20 gloss include metal vapor deposition, metal foil, inorganic pigments, and fluorescent dyes. Preferred are aluminum vapor deposition, indium vapor deposition, tin vapor deposition, aluminum paste, and pearl pigment.

  The thickness of the gloss layer 20 is not particularly limited, but is preferably 50 μm or less. This is because if the thickness of the gloss layer 20 exceeds 50 μm, the moldability may be hindered.

  Such a transparent resin layer 10 and the gloss layer 20 are closely adhered by an adhesive and embossed so that the transparent resin layer side protrudes. The adhesive must be transparent and not cracked during embossing. Further, it is desirable that the adhesive does not change color with heat, light, and time. Specific examples of the adhesive include acrylic resin, urethane resin, and polyester resin. For convenience, the adhesive layer formed by applying the adhesive is omitted in FIG.

  The filling layer 30 is a layer provided in a recess formed in the transparent resin layer 10 and the gloss layer 20 by embossing. The material used for the filling layer 30 is a curable resin such as a thermosetting resin or an ultraviolet curable resin. In addition to these, any one or more of a crosslinking agent, a polymerization initiator, a stabilizer, a flame retardant, an antioxidant, an antistatic agent, an antifungal agent and the like may be contained. Specific examples of the thermosetting resin include urethane resin, epoxy resin, and silicon resin. Specific examples of the ultraviolet curable resin include a radical polymerization acrylic resin and a cation polymerization epoxy resin. In the case of a thermosetting resin, a two-pack type in which a curable resin and a crosslinking agent are mixed just before use may be employed.

  The sealing film 40 is a film that seals the filling layer 30. The sealing film 40 in this embodiment includes an adhesive layer 41 and a release paper 42 attached to one surface of the adhesive layer 41. The pressure-sensitive adhesive layer 41 may be a double-sided tape. Or you may apply the sealing film to which an adhesive is not apply | coated depending on the kind of curable resin.

(1-2) Manufacturing Method of Stereoscopic Emblem FIG. 2 is a flowchart showing a manufacturing method of the stereoscopic emblem 1. As shown in FIG. 2, the three-dimensional emblem manufacturing method includes a lamination process P1, a molding process P2, a filling process P3, a curing process P4, a trimming process P5, and a peeling process P6 as main processes.

<Lamination process>
FIG. 3 is a diagram illustrating a state of the stacking process P1. As shown in FIG. 3, first, the transparent resin layer 10 and the gloss layer 20 are bonded with an adhesive, and a laminate 50 in which the gloss layer 20 is laminated on one surface of the transparent resin layer 10 is prepared.

  Next, in the laminated body 50, the auxiliary molding layer 60 is laminated on the other surface of the transparent resin layer 10. Specifically, an adhesive is applied or bonded to the surface of the molding auxiliary layer 60, and the transparent resin layer 10 side of the laminate 50 is pressure-bonded onto the resulting adhesive layer. In this way, a laminated body (hereinafter referred to as an auxiliary laminated body) 70 in which the molding auxiliary layers 60 are laminated is obtained.

  For convenience, the adhesive layer formed between the transparent resin layer 10 and the glossy layer 20 and the adhesive layer formed between the transparent resin layer 10 and the molding auxiliary layer 60 are omitted in FIG. did.

<Molding process>
FIG. 4 is a view showing a state before embossing in the forming step P2. FIG. 5 is a diagram showing a state after the emboss molding in the molding process P2. As shown in FIG. 4, first, the auxiliary laminated body 70 is placed on the convex surface so that the surface on the gloss layer 20 side of the auxiliary laminated body 70 faces the convex surface of the convex mold 80 for emboss molding. Put.

  Next, as shown in FIG. 5, embossing is performed on the auxiliary laminate 70 by vacuum or pressure forming so that the auxiliary molding layer 60 side of the auxiliary laminate 70 protrudes. In addition, you may make it the shaping | molding auxiliary layer 60 side of the said laminated body 70 with an auxiliary | assistant protrude by pressing a convex metal mold | die and a concave mold to the laminated body 70 with an auxiliary | assistant.

  In this way, the predetermined embossed shape is transferred to the auxiliary laminate 70. That is, a concave portion is formed when viewed from the gloss layer 20 side of the auxiliary laminate 70, and a convex portion is formed when viewed from the auxiliary molding layer 60 side of the auxiliary laminate 70. In addition, the shape of the convex part formed in the laminated body 70 with assistance by embossing is a character, a symbol, or a figure.

<Filling process>
FIG. 6 is a diagram illustrating a configuration example of a filling device used in the filling step P3. As shown in FIG. 6, in the case of the present embodiment, for example, the filling step P <b> 3 is performed using a filling device that includes a conveyance path 91, a pressing roller 92, a resin injection nozzle 93, and a pedestal 94 as main components.

  The conveyance path 91 is, for example, a belt conveyor type conveyance path. The pedestal 94 placed on the conveyance path is moved in the conveyance direction D1. On the mounting surface of the pedestal 94, an accommodation space SP that accommodates the convex portion formed in the auxiliary laminated body 70 by a molding process is provided.

  The pressing roller 92 is disposed above the conveyance path 91, and in this embodiment, is a liftable roller that moves up and down in a direction approaching or moving away from the conveyance path 91. The rotation direction D2 of the pressing roller 92 is the same as the conveying direction D1, and the surface of the pressing roller 92 is made of rubber, for example.

  A sealing film 40 is disposed between the pressing roller 92 and the conveyance path 91. The release paper side of the sealing film 40 faces the roller surface of the pressing roller 92, and the adhesive layer side of the sealing film 40 faces the transport surface of the transport path 91. The sealing film 40 moves at a predetermined speed in the transport direction D1 of the transport path 91 by the feed mechanism.

  The resin injection nozzle 93 is disposed above the conveyance path 91 and upstream of the pressing roller 92 in the conveyance direction D1, and injects a curable resin by a predetermined amount at a predetermined pressure.

  FIG. 7 is a diagram showing a state before filling in the filling step P3. FIG. 8 is a diagram showing a state in the middle of filling in the filling step P3. As shown in FIG. 7, first, the auxiliary laminated body 70 is placed on the pedestal 94 in a state where the convex portions formed on the auxiliary laminated body 70 are accommodated in the accommodation space SP of the pedestal 94.

  In addition, in order to suppress that the convex part of the auxiliary | assistant laminated body 70 deform | transforms by press, the depth DP of the accommodation space SP has a clearance gap between the convex part of the auxiliary | assistant laminated body 70 mounted in the base 94. It is preferable to make the depth as large as possible.

  Next, the curable resin 100 is injected by a resin injection nozzle 93 at a predetermined pressure at a predetermined pressure in a portion other than the concave portion on the surface on the glossy layer side of the auxiliary laminated body 70.

  In the case of the present embodiment, first, the pressing roller 92 is disposed on the downstream side of the conveyance direction D1 with respect to the periphery of the recess, with the recess as a reference. Next, the pedestal 94 is moved in the transport direction D1, and the pressing roller 92 is rotated in the rotation direction D2. In this way, as shown in FIG. 8, the sealing film 40 is pressed by the pressing roller 92 against the first portion other than the concave portion on the other surface of the gloss layer 20 of the auxiliary laminate 70.

  In this state, the sealing film 40 is pressure-bonded to the surface on the glossy layer side of the auxiliary laminate 70, and the concave portion of the auxiliary laminate 70 is filled with the curable resin 100 while being pressed by the sealing film 40. The curable resin that could not be filled in the recesses is moved while being pushed by the sealing film 40 to the upstream end of the auxiliary laminate 70. Or you may make it fill the recessed part of the next laminated body 70 with an auxiliary | assistant with the curable resin which could not be filled to a recessed part.

  In addition, after filling the curable resin 100 into the concave portion of the auxiliary laminated body 70, the auxiliary laminated body 70 may be pressed again from the surface on the gloss layer side. Further, a squeegee may be applied instead of the pressing roller 92.

<Curing process>
This curing process P4 is a process of curing the curable resin 100 filled in the recesses. For example, when the curable resin 100 is an ultraviolet curable resin, the curable resin 100 filled in the recesses is cured by irradiating with ultraviolet rays.

  When the curable resin 100 is a thermosetting resin, it may be cured by standing at room temperature, or instead of being left at room temperature, the thermosetting resin may be cured in a short time by heating. However, when the thermosetting resin is cured by being allowed to stand at room temperature, a heating facility is not required, so that the three-dimensional emblem 1 can be easily manufactured.

<Trimming process>
This trimming process P5 is a process of cutting out the auxiliary | assistant laminated body 70 which affixed the sealing film 40 mainly to a predetermined magnitude | size. The resin protruding from the auxiliary laminate 70 and the sealing film 40 may be removed before and after the auxiliary laminate 70 is cut out. Moreover, you may make it remove a burr | flash after cutting out the laminated body 70 with assistance.

<Peeling process>
This peeling process P6 is a process which peels the shaping | molding auxiliary layer 60 from the laminated body 70 with an auxiliary | assistant. For example, one or a plurality of positions at one end of the auxiliary molding layer 60 are gripped and peeled with a constant force from the one end toward the other end facing the one end.

  Thus, the three-dimensional emblem 1 as shown in FIG. 1 is manufactured through the lamination process P1, the molding process P2, the filling process P3, the curing process P4, the trimming process P5, and the peeling process P6.

  In the three-dimensional emblem 1 manufactured in this way, for example, after the release paper 42 is peeled off at the carry-in destination or the like to expose one surface of the layer adhesive 41, it is applied to a predetermined application site such as the surface of the vehicle body, for example. It is pasted.

  As described above, the manufacturing method of the three-dimensional emblem 1 according to the present embodiment includes the molding auxiliary layer 60 on the other surface of the transparent resin layer 10 in the laminate 50 in which the gloss layer 20 is laminated on one surface of the transparent resin layer 10. To obtain a laminated body 70 with assistance.

  And after embossing so that the shaping | molding auxiliary layer 60 side may protrude with respect to the laminated body 70 with an auxiliary | assistant, the shaping | molding auxiliary layer 60 is peeled from the said laminated body 70 with an auxiliary | assistant.

  According to such a manufacturing method, the auxiliary laminated body 70 in which the molding auxiliary layer 60 is laminated can increase the rigidity as compared with the laminated body 50 in which the molding auxiliary layer 60 is not laminated. Even the body 50 can transfer a more faithful embossed shape to the laminate 50.

  In addition, since the auxiliary molding layer 60 is peeled after embossing, the flexibility of the laminate 50 can be used effectively. As a result, the three-dimensional emblem 1 can be attached to follow the curved surface portion. Become.

  In the molding step P <b> 2 in the present embodiment, pressure is applied from the molding auxiliary layer 60 side in a state where the gloss layer 20 in the auxiliary laminated body 70 is opposed to the mold surface of the convex mold 80.

  Accordingly, pressure can be applied to the auxiliary molding layer 70 side of the auxiliary laminate 70. For this reason, it is possible to transfer a more faithful embossed shape to the auxiliary laminate 70 as compared with the case where pressure is applied from the gloss layer side with the auxiliary molding layer 60 facing the mold surface of the convex mold 80. it can.

  In the case of the present embodiment, before the auxiliary molding layer 60 of the auxiliary laminate 70 is peeled off, a curable resin is formed in the concave portion formed on the other surface of the glossy layer 20 in the auxiliary laminate 70 by the molding step P2. A filling step P3 for filling 100 is provided. And after hardening | curing curable resin 100, peeling process P6 is performed.

  Therefore, it is possible to suppress deformation of the laminated body 50 caused by peeling off the forming auxiliary layer 60 from the case where the forming auxiliary layer 60 is peeled off from the auxiliary laminated body 70 before the filling step P3.

  In the case of the filling step P3 of the present embodiment, the step of pressing the sealing film 40 with the pressing roller 92 against the first portion other than the concave portion on the other surface of the gloss layer 20, and the pressing roller 92 with the first portion And passing the upper part of the concave part to a second part other than the concave part, and passing the sealing film 40 onto the gloss layer 20.

  Therefore, even when the curable resin 100 is filled, the auxiliary laminated body 70 has high rigidity. Therefore, even if pressure is applied to the auxiliary laminated body 70 from the pressing roller 92, the embossing formed on the auxiliary laminated body 70 is performed. The curable resin 100 can be filled without changing the shape. Moreover, the intensity | strength of an embossed part can also be raised because the curable resin 100 with which the recessed part was filled hardens | cures.

  In addition, the manufacturing method of the three-dimensional emblem 1 can be appropriately combined, omitted, changed, or added with a well-known technique within a range not departing from the purpose of the present application, in addition to the contents shown in the above embodiment.

DESCRIPTION OF SYMBOLS 1 ... Three-dimensional emblem 10 ... Transparent resin layer 20 ... Glossy layer 30 ... Filling layer 40 ... Sealing film 41 ... Adhesive layer 42 ... Release paper 50 ... Lamination Body 60 ... Auxiliary forming layer 70 ... Laminated body with assistance 80 ... Convex mold 91 ... Conveying path 92 ... Pressing roller 93 ... Resin ejection nozzle 94 ... Base P1・ ・ Lamination process P2 ・ ・ ・ Molding process P3 ・ ・ ・ Filling process P4 ・ ・ ・ Hardening process P5 ・ ・ ・ Trimming process P6 ・ ・ ・ Peeling process

Claims (4)

In a laminate in which a gloss layer is laminated on one side of the transparent resin layer, a lamination step of obtaining an auxiliary laminate by laminating a molding auxiliary layer on the other side of the transparent resin layer;
A molding step for embossing the auxiliary laminate so that the molding auxiliary layer side protrudes,
A method for producing a three-dimensional emblem, comprising: a peeling step of peeling the molding auxiliary layer from the auxiliary laminate. The molding step includes
Embossing is performed so that the molding auxiliary layer side protrudes by applying pressure from the molding auxiliary layer side in a state where the other surface of the gloss layer is opposed to the convex mold surface for embossing molding. The manufacturing method of the solid emblem of Claim 1. Before the peeling step, further comprising a filling step of filling a curable resin in a recess formed on the other surface of the gloss layer by the molding step,
The method for producing a three-dimensional emblem according to claim 1, wherein the peeling step is performed after the curable resin is cured. The filling step includes
Pressing the sealing film with a pressing member against a first portion other than the concave portion on the other surface of the gloss layer;
The step of moving the pressing member from above the first portion to the second portion other than the recessed portion through the upper portion of the recessed portion and affixing the sealing film to the gloss layer is provided. 3. A method for producing the three-dimensional emblem according to 3.

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