JP4361508B2 - Decorative plate and manufacturing method thereof - Google Patents

Description

  The present invention relates to a decorative plate and a method of manufacturing the decorative plate. More specifically, even a minute decorative pattern is firmly adhered to an adherend so that an image is not dropped due to an impact and has a sharp edge pattern. Further, the present invention relates to a decorative plate that can prevent injuries due to wear and contact, and a manufacturing method thereof.

  For articles with fine and complex shapes such as roses for clocks and decorative parts, a resist film is formed on the surface of the metal plate on the surface of the metal plate except for these image forming parts. A conductive portion is formed along the shape of these images, and a metal is deposited on the conductive portion by an electrodeposition method to form an electrodeposition image as a decorative pattern such as time letters, and this decorative pattern is used as an adhesive. Once transferred and supported on a supporting substrate such as a film through a layer, an adhesive layer for fixing is formed on the exposed surface of the decorative pattern, and the adhesive for fixing is peeled off from the supporting substrate. Adhering to an adherend such as a display panel for a watch through a layer is widely performed. For example, Patent Documents 1 and 2 disclose various electrodeposition imaging methods and improvements thereof.

  Such a decoration pattern is also used as a display member (decoration plate) for displaying a manufacturer name and a product name. However, points such as “i” and “j” in the alphabet are extremely small, and even if they are attached to an adherend through an adhesive layer for fixing, they will drop off due to insufficient adhesive strength. was there.

  Further, according to the electrodeposition imaging method, sharp edges are formed at acute angle portions in the alphabets “V” and “W”. The sharp corners are easily worn and may be caught on clothing fibers or cause injury.

  In order to solve such a problem, the present applicant has proposed a decorative plate in which an electrodeposition image is sealed in a heat-meltable resin layer in Patent Document 3. According to this decorative plate, since the electrodeposition image is sealed in the resin, even if it is a minute electrodeposition image, there is no dropout of the image, and even an image with a sharp edge is injured due to wear and contact. Can be prevented. However, since the electrodeposition image surface is covered with resin, the metal luster inherent in the electrodeposition image is lost.

  In order to prevent image dropout in a minute decorative pattern and abrasion and contact injury in a sharp edge pattern, and to effectively use the metallic luster inherent in the decorative pattern, the applicant of the present application is disclosed in Patent Document 4. Proposed a decorative plate comprising an adherend having a concave portion and a decorative pattern having substantially the same shape as the concave portion, wherein the decorative pattern is fixed in the concave portion via an ultraviolet curable adhesive layer. .

  This decorative plate is manufactured as follows. A decorative pattern is formed on the support member so as to be aligned and temporarily attached, the decorative pattern is transferred to an application tape having a first ultraviolet curable adhesive layer, and the ultraviolet curable adhesive layer is irradiated with ultraviolet rays. The adhesive strength is reduced, and a second ultraviolet curable adhesive layer is further formed on the surface to which the decorative pattern is adhered, and the decorative pattern is formed on the concave portion of the adherend having a concave portion having substantially the same shape. The decorative pattern is fitted through the ultraviolet curable adhesive layer 2, irradiated with ultraviolet rays from the application tape side, and the application tape is peeled off from the decorative pattern.

However, when the decorative pattern is fixed through the second ultraviolet curable adhesive layer as described above, the adhesive is not cured and the original adhesive force is obtained particularly when the ultraviolet ray is not irradiated under appropriate conditions. I can't. Thereby, the adhesive force of the decoration pattern becomes insufficient, and it may fall off due to the impact of dropping.
JP-A-7-331479 JP-A-8-27597 JP 2002-20596 A JP 2003-12420 A

  The present invention provides a mixed adhesive layer, a hot-melt adhesive layer or a pressure-sensitive adhesive layer of a hot-melt adhesive and an ultraviolet-curable adhesive, instead of the second ultraviolet-curable adhesive layer for fixing a decorative pattern. It is an object of the present invention to provide a decorative plate and a method for manufacturing the decorative plate that can prevent an image from dropping off due to an impact.

The gist of the present invention aimed at solving such problems is as follows.
(1) The total thickness of the adherend having a shape similar to the decorative pattern and having a recess having a size of 100 to 300 μm relative to the width and length of the decorative pattern, and the decorative pattern and the decorative pattern fixing layer, The concave portion has a thickness in the range of −100 μm to ± 0 μm with respect to the depth of the concave portion, and a decorative pattern having substantially the same shape,
An ultraviolet curable adhesive layer whose adhesive strength is reduced by irradiation of the substrate and ultraviolet rays, or irradiation of the substrate and ultraviolet rays from a support member for producing a decoration pattern having a resin coat layer on the surface and side surfaces of the decoration pattern A decorative pattern transferred to an application tape having an adhesive layer containing a hot melt adhesive whose adhesive strength is reduced by the
(i) a mixed adhesive of a hot melt adhesive and an ultraviolet curable adhesive whose adhesive strength is reduced by irradiation with ultraviolet rays,
(ii) hot melt adhesive, or
(iii) Fixing via an adhesive layer for decorative pattern selected from the group consisting of pressure-sensitive adhesives, and irradiating the adhesive layer of the application tape with ultraviolet rays, thereby providing an application tape having a substrate and an adhesive layer. A decorative plate characterized by peeling.
(2) The decorative plate according to (1), wherein the decorative pattern is an electrodeposition image.
(3) The decorative plate according to (1), wherein the decorative pattern is an etching image.
(4) An ultraviolet curable adhesive layer in which a decorative pattern is formed on a support member so as to be aligned and temporarily attached, and the adhesive strength is reduced by irradiation with ultraviolet rays, or hot melt bonding in which the adhesive strength is reduced by irradiation with ultraviolet rays. Transferring the decorative pattern to an application tape having an adhesive layer containing an agent;
On the side where the decorative pattern is bonded,
(I) a mixed adhesive of a hot melt adhesive and an ultraviolet curable adhesive whose adhesive strength is reduced by irradiation with ultraviolet rays;
(Ii) hot melt adhesive, or
(Iii) forming an adhering layer for decorative patterns selected from the group consisting of pressure-sensitive adhesives,
It is substantially the same shape as the decorative pattern, and is 100 to 300 μm larger than the width and length of the decorative pattern, and the total thickness of the decorative pattern and the decorative pattern fixing layer is relative to the depth of the concave portion. A decorative pattern is fitted into the concave portion of the adherend having a thickness in the range of −100 μm to ± 0 μm, and the decorative pattern is fitted through the decorative pattern fixing layer, thereby decorating the decorative pattern. Fixed through
A method for producing a decorative plate, comprising: irradiating an adhesive layer of an application tape with ultraviolet rays, and peeling the application tape having the base material and the adhesive layer from the decorative pattern.
(5) The adhesive layer of the application tape includes an ultraviolet curable adhesive, and further includes a step of irradiating the adhesive layer with ultraviolet rays to reduce the adhesive force after the decorative pattern is transferred to the application tape (4). The manufacturing method of the decoration plate as described in 1 ..
(6) The decorative pattern fixing layer contains an ultraviolet curable adhesive and a hot melt adhesive, and after the decorative pattern is fitted into the concave portion of the adherend, the application tape side is irradiated with ultraviolet rays, and the application tape side is heated. Or the manufacturing method of the decoration plate as described in (4) which further includes the process of performing a heating and pressurization.
(7) The fixing layer for decorative pattern includes a hot melt adhesive, and further includes a step of heating or heating and pressurizing from the application tape side after fitting the decorative pattern to the adherend recess. Method for producing decorative plates.
(8) The method for manufacturing a decorative plate according to (4), further including a step of performing a peeling process on the surface of the decorative pattern in a state where the decorative pattern is aligned and temporarily attached on the support member.
(9) The method of manufacturing a decorative plate according to (4), further including a step of resin-coating the decorative pattern surface and side surfaces in a state where the decorative pattern is aligned and temporarily attached on the support member.
(10) The decorative plate according to (4), further including a step of resin-coating the decorative pattern surface and side surfaces with the decorative pattern aligned and temporarily attached on the support member, and subjecting the resin-coated surface to a peeling treatment. Manufacturing method.

  According to the present invention, it is possible to provide a firmly bonded decorative plate that does not drop an image due to an impact even with a small decorative pattern. In addition, a decorative plate that can prevent damage due to wear and contact even with an image having a sharp edge, and that can effectively use the metallic luster inherent in the decorative pattern, and a method for manufacturing the decorative plate are provided. Furthermore, according to the present invention, there is provided a decorative plate having an excellent appearance without causing the adhesive for fixing the decorative pattern to protrude from the decorative pattern or remain on the adherend.

Hereinafter, the decorative plate and the manufacturing method thereof according to the present invention will be described more specifically with reference to the drawings.
As shown in FIG. 1, the decorative plate 10 includes an adherend 1 having a recess 2 and a decorative pattern 3 having substantially the same shape as the recess 2, and the decorative pattern 3 has a specific fixing described later in the recess. It is fixed via the layer 4.

  The adherend 1 is made of metal or various synthetic resins, and the material is not particularly limited. Further, the thickness of the adherend 1 is not particularly limited, and varies depending on the use of the decorative plate 10 and is appropriately selected depending on the total thickness of the decorative pattern 3 and the fixing layer 4 described later. Is about 500 to 5000 μm.

  On the surface of the adherend 1, there is formed a recess 2 in which a decoration pattern 3 to be described later is accommodated. The formation method of the recessed part 2 is various according to the material of the to-be-adhered body 1, and the method according to a material is selected suitably. For example, press molding or etching may be used, and in the case of a synthetic resin, molding using a mold may be used. The contour shape of the recess 2 is substantially the same as that of the decorative pattern 3. That is, the width and length of the recess 2 are set to be the same as or slightly larger than the decorative pattern 3. When the concave portion is set to be slightly larger, it is similar to the decorative pattern 3 and is set to be about 100 to 300 μm larger than the width and length of the decorative pattern. The depth of the recess 2 is appropriately set in consideration of the thickness of the decorative pattern 3 and the fixing layer 4 as will be described later.

The decorative pattern 3 may be an electrodeposited image produced by a known electrodeposition image method described in, for example, JP-A-7-331479, JP-A-8-27597, etc., or an etching method, press Or a fine pattern produced by a laser beam cutting method. Among these, in the present invention, an electrodeposition image or a fine pattern obtained by an etching method (hereinafter sometimes referred to as an etching image) is particularly preferable. In the present invention, as the decorative pattern 3, in many cases, a decorative pattern having a character / graphic pattern such as a manufacturer name, a trade name, or a trademark is used. However, the decorative pattern 3 is not limited to these and includes various decorative patterns. Also good.

  The thickness of the decorative pattern 3 is preferably 50 to 200 μm, more preferably 30 to 150 μm, and particularly preferably 30 to 100 μm. The surface of the decorative pattern 3 may be provided with a pattern, or may be colored or finish-plated.

  The decorative pattern 3 is fixed in the concave portion of the adherend 1 through the fixing layer 4. The fixing layer 4 is selected from the group consisting of (i) a mixed adhesive of a hot melt adhesive and an ultraviolet curable adhesive, (ii) a hot melt adhesive, and (iii) an adhesive.

  Representative examples of UV curable pressure sensitive adhesives include, but are not limited to, photopolymerizable compounds such as addition polymerizable compounds having two or more unsaturated bonds and alkoxysilanes having an epoxy group, and carbonyl Examples thereof include rubber pressure-sensitive adhesives and acrylic pressure-sensitive adhesives containing a photopolymerization initiator such as compounds, organic sulfur compounds, peroxides, amines, and onium salt compounds (Japanese Patent Laid-Open No. 60-196956). No. publication). The compounding amounts of the photopolymerizable compound and the photopolymerization initiator are generally 10 to 500 parts by weight and 0.1 to 20 parts by weight, respectively, per 100 parts by weight of the base polymer.

  A hot melt adhesive has a property of adhering to an adherend in a molten state and solidifying and adhering when cooled, and various hot melt adhesives are known. A polyester-based hot melt adhesive is preferably used, and is usually marketed as a mixed adhesive of polyester and aromatic hydrocarbon, cyclohexanone, silica or the like. In the present invention, JELCON AD-HM1 (manufactured by Jujo Chemical Co., Ltd.), JELCON AD-HM6 (manufactured by Jujo Chemical Co., Ltd.) and the like are preferably used. Also good. When using a slow drying agent and a diluent, it is preferable that the blending ratio is about 20 parts by weight of the total of the slow drying agent and the diluent with respect to 100 parts by weight of the polyester as the main agent.

  When a mixed adhesive (i) of a hot melt adhesive and an ultraviolet curable adhesive is used for the fixing layer 4, the blending ratio of the hot melt adhesive and the ultraviolet curable adhesive (hot melt adhesive / ultraviolet curable adhesive) The agent (solid content weight ratio)) is preferably 1.5 / 1 to 0.5 / 1, more preferably 1.2 / 1 to 0.8 / 1, particularly preferably 1.1 / 1 to 1. 0.9 / 1.

  The fixing layer may be formed from the mixed adhesive (i) or may be formed from the hot melt adhesive (ii). Further, the mixed adhesive (i) and the hot melt adhesive (ii) contain various components such as a filler, a curing aid, and a tackifier that are blended in a normal adhesive at an arbitrary ratio. Also good.

  The fixing layer 4 may be formed from an adhesive (iii). In the present invention, an acrylic pressure-sensitive adhesive is particularly preferable, and a curing agent such as an epoxy resin and a diluent such as cellosolve acetate may be blended as necessary. In this case, the curing agent is used in a proportion of about 5 to 30 parts by weight and the diluent is used in a proportion of about 5 to 30 parts by weight with respect to 100 parts by weight of the acrylic pressure-sensitive adhesive as the main agent.

  In the decorative plate 10 of the present invention, the decorative pattern is fixed in the recess 2 via the fixing layer 4. The thickness of the fixing layer 4 is preferably 10 to 60 μm, more preferably 15 to 50 μm, and particularly preferably 15 to 30 μm.

In the decorative plate 10 of the present invention, the total thickness of the decorative pattern 3 and the fixing layer 4 is in the range of −100 μm to ± 0 μm with respect to the depth of the concave portion 2 .

  According to such a decorative plate 10 according to the present invention, the decorative pattern 3 is fixed in the recess 2 of the adherend 1 via the fixing layer 4, so that even if it is a minute decorative pattern, the image is dropped. Does not happen. For example, when the fixing layer 4 is formed of a mixed adhesive (i) of a hot melt adhesive and an ultraviolet curable adhesive, the ultraviolet irradiation conditions are inappropriate and the adhesive property of the ultraviolet curable adhesive is low. Even if it does not fully develop, the adhesive strength is complemented by the hot melt adhesive, so that the decorative pattern can be fixed securely. In addition, by using a hot melt adhesive or a pressure-sensitive adhesive, the decorative pattern can be fixed without performing ultraviolet irradiation.

  Further, by setting the total thickness of the decorative pattern 3 and the fixing layer 4 and the depth of the concave portion 2 as described above, the acute angle portion of the decorative pattern end portion does not protrude from the adherend surface. Even an image pattern with sharp edges can prevent abrasion and contact injury. Furthermore, since the decoration pattern surface is exposed, when the decoration pattern is made of metal, the metallic luster inherent in the metal pattern can be used effectively, and the decoration can be improved.

  However, in the present invention, it is of course acceptable to form a resin layer for coloring or the like on the decorative pattern surface. When the decorative pattern is an etching image, the side surface of the image may become rough as a result of side etching. In this case, the adhesive easily adheres to the side surface of the image. In order to prevent such an inconvenience, a resin coat may be applied to the surface and side surfaces of the decorative pattern. Since the side surface is smoothed by the resin coat, adhesion of the adhesive can be reduced. Such a resin coat is formed of an acrylic UV curable polymer, an acrylic and epoxy mixed system and a urethane thermosetting polymer, and the thickness is not particularly limited, but is preferably 5 to 25 μm, more preferably Is 5 to 20 μm, particularly preferably 5 to 25 μm.

Next, the manufacturing method of the decoration plate 10 is demonstrated to this invention.
First, the decorative pattern 3 is formed on the support member 11 so as to be aligned and temporarily attached. Such a decorative pattern 3 may be manufactured by applying an electrodeposition imaging method described in, for example, Japanese Patent Application Laid-Open Nos. 7-331479 and 8-27597, and the support member 11 A decorative pattern 3 aligned and temporarily attached on the pressure-sensitive adhesive sheet by sticking a metal foil onto the pressure-sensitive adhesive sheet using a pressure-sensitive adhesive sheet or the like, and patterning the metal foil by an etching method, a press method, or a laser beam cutting method. May be formed.

  In the present invention, the process management pattern 9 may be formed so as to surround the decoration pattern 3 simultaneously with the formation of the decoration pattern 3. Such a process management pattern 9 is finally removed, but can be used as a mask when the fixing layer 4 described later is formed. The process management pattern 9 may be formed with holes used for alignment and the like.

  The decorative pattern 3 aligned and temporarily attached here is a state in which the decorative pattern as a whole shows a character / graphic pattern such as a manufacturer name, a product name, and a trademark, and is fixed on the support member 11 so as to be peelable. State.

As such a decorative pattern 3, an electrodeposition image or an etching image is particularly preferable from the viewpoint of ease of manufacture.
For example, the etching image is formed by using a pressure sensitive adhesive sheet or the like as the support member 11, attaching a metal foil on the pressure sensitive adhesive sheet, forming a resist film on the metal foil, and then exposing and developing. This is performed by etching and finally removing the resist film. By such a method, an etching image as a decorative pattern is obtained in an aligned and temporary state on the adhesive sheet. In order to facilitate the peeling of the etching image in a later step, it is preferable to use an ultraviolet curable pressure sensitive adhesive sheet as the pressure sensitive adhesive sheet.

  Moreover, it is preferable to provide the above-mentioned resin coat layer on the surface and side surfaces of the decorative pattern 3. When the resin coat layer is provided, the raw material resin for forming the resin coat layer is applied or sprayed in the state shown in FIG. 2, that is, in a state where the decorative pattern 3 is aligned and temporarily attached on the support member 11. Harden. The resin coat layer is disposed on the exposed surface side of the decorative plate 10 through two transfer processes described later. By providing such a resin coat layer, it is possible to prevent the adhesive forming the fixing layer and the adhesive of the application tape used in the transfer process from remaining on the surface and side surfaces of the decorative pattern 3. For this reason, since the adhesive does not cause stringing in the transfer process and the fixing process, the decorative plate 10 without dirt can be manufactured.

  For the same purpose, the surface of the decorative pattern 3 may be stripped. Here, as the release agent, a silicone release agent is preferably used. Furthermore, after providing the resin coat layer, the surface of the resin coat layer may be subjected to a peeling treatment. As a result, not only adhesion of the adhesive is prevented, but also when the application tape 12 is finally peeled off from the decoration pattern 3 as described later, the decoration pattern 3 adheres to the application tape 12 side and peels off. Can be prevented.

  In particular, in the present invention, a conductive film 5 is formed on the surface of the metal plate 6 as shown in FIG. 2 according to the method described in JP-A-7-331479, and this is used as the support member 11. It is preferable that the decorative pattern 3 is formed on the surface of the conductive coating 5 by the electrodeposition image method.

  Next, the decorative pattern 3 formed on the surface of the support member 11 is transferred to the application tape 12 having the adhesive layer 7. Specifically, the application tape 12 composed of the base material 8 and the adhesive layer 7 is affixed to the decorative pattern forming surface, and the application tape 12 is peeled from the support member 11 so that the decorative pattern 3 becomes the adhesive layer 7. The decorative pattern 3 can be transferred to the application tape 12 after being peeled off. When forming an etching image, when an adhesive sheet is used as the support member 11, an application tape 12 having an adhesive force larger than that of the adhesive sheet is selected. In particular, when an ultraviolet curable pressure-sensitive adhesive sheet is used as the support member 11, after the etching image is formed, ultraviolet curing is performed to reduce the adhesive force on the support member side, and the decorative pattern 3 is applied to the application tape. 12 can be easily transferred.

  As shown in FIG. 2, when the conductive film 5 is formed on the surface of the metal plate 6 and the decoration pattern 3 is formed on the surface of the conductive film 5, the decoration pattern 3 is formed as shown in FIG. Is peeled so as to be sandwiched between the conductive film 5 and the application tape 12, and then the conductive film 5 is preferably peeled off from the decorative pattern surface as shown in FIG. By passing through such a process, when transferring the decoration pattern 3 from the support member 11 to the application tape 12, it is possible to prevent an excessive deformation stress from being applied to the decoration pattern 3 or the decoration pattern 3 from being scattered.

  When an adhesive is used for the adhesive layer 7, it is particularly preferable to spray a release agent on the decorative pattern 3 in advance. Thereby, as will be described later, when the application tape 12 is finally peeled off from the adherend, it is possible to prevent the decorative pattern 3 from adhering to the application tape 12 side and peeling off.

  The decorative pattern 3 transferred to the application tape 12 is transferred again to the adherend in the final step. Therefore, as the adhesive layer 7 of the application tape 12, a weak adhesive having removability or an ultraviolet curable adhesive whose adhesive strength is reduced by ultraviolet irradiation can be used.

  However, when a resin coat layer is formed on the surface of the decorative pattern 3 or when a peeling process is performed, the adhesive force between the surface of the decorative pattern and the application tape 12 does not increase. Not only the adhesive but also various adhesives can be used as the adhesive layer 7 of the application tape 12. In particular, by using the same or similar adhesive as the fixing layer 4 used for finally fixing the decorative pattern 3 to the adherend, the adhesive protruding from the decorative pattern 3 is integrated with the adhesive layer 7. Can be removed from the periphery of the decorative pattern.

  The adhesive for forming the fixing layer 4 is as described above, and an adhesive that forms the above-described fixing layer is different from an adhesive similar to this, even if the composition and physical properties are different from those of the adhesive for forming the fixing layer 4. Those within the scope of the explanation for the agent. For example, when the fixing layer 4 is formed of a mixed adhesive (i) of a hot melt adhesive and an ultraviolet curable adhesive, an adhesive similar to this is the hot melt adhesive and the ultraviolet curable adhesive. The blending ratio is different from the actually used fixing layer 4, but the blending ratio is in the range described in this specification.

  It is preferable to form the adhesive layer 7 on the substrate 8 of the application tape 12 after the corona discharge treatment in advance. Thereby, the adhesive force of the base material 8 and the adhesive layer 7 can be enhanced, and the adhesive of the adhesive layer 7 remains on the decorative pattern 3 when the application tape 12 is finally peeled off from the adherend. Can be prevented.

  When the adhesive layer 7 includes an ultraviolet curable adhesive, various transparent or translucent resin films are used as the substrate 8. The case where the adhesive layer 7 includes an ultraviolet curable adhesive includes the case where the application tape 12 is a general-purpose UV tape (ultraviolet curable adhesive tape) and the case where the adhesive layer 7 is bonded to the hot melt adhesive and the ultraviolet curable adhesive. Including mixed adhesive (i) with an agent.

  After the decorative pattern 3 is transferred to the application tape 12 having the adhesive layer 7 as described above, if the adhesive layer 7 contains an ultraviolet curable adhesive, as shown in FIG. Irradiate to reduce adhesion. At this time, the entire adhesive layer 7 including the ultraviolet curable adhesive is sufficiently cured by irradiating ultraviolet rays from the surface of the substrate 8, and the adhesive force is reduced even in the portion where the decorative pattern 3 is fixed. .

  Next, as shown in FIG. 6, the fixing layer 4 is further formed on the surface on which the decorative pattern is fixed. The thickness of the fixing layer 4 is preferably 10 to 60 μm, more preferably 15 to 50 μm, and particularly preferably 15 to 30 μm.

  The composition of the adhesive used for the fixing layer 4 is as described above, and may be the same as or different from the composition of the adhesive layer 7 of the application tape 12, but preferably has the same or similar composition.

The fixing layer 4 is formed, for example, by diluting the adhesive with a solvent as necessary, and then by silk printing, spraying, or the like, preferably by silk printing.
In forming the fixing layer 4, a mask having an opening having substantially the same shape as the decorative pattern 3 can be used. That is, after the opening of the mask and the decorative pattern 3 are aligned, the adhesive layer 4 is applied and sprayed, whereby the fixing layer 4 can be formed on the exposed surface of the decorative pattern 3. Further, as described above, the process management pattern 9 can be formed and used as a mask.

When the process management pattern 9 is formed as a mask, the pattern 9 is removed after applying and spraying an adhesive.
By passing through such a process, as shown in FIG. 6, the fixing layer 4 can be formed only on the exposed surface of the decorative pattern 3 and its peripheral portion, and the adhesive sticks out to the adherend 1 after protruding. Can be reduced.

  On the other hand, separately from the above, an adherend 1 having a recess 2 having substantially the same shape as the decorative pattern 3 is prepared (FIG. 7). The adherend 1 is made of metal or various synthetic resins, and the material is not particularly limited. Moreover, the thickness of the adherend 1 is not particularly limited, and varies depending on the use of the decorative plate 10, but is generally about 500 to 1000 μm. The formation method of the recessed part 2 is various according to the material of the to-be-adhered body 1, and the method according to a material is selected suitably. For example, press molding or etching may be used, and in the case of a synthetic resin, molding using a mold may be used. The contour shape of the recess 2 is substantially the same as that of the decorative pattern 3. That is, the width and length of the recess 2 are set to be the same as or slightly larger than the decorative pattern 3. When the concave portion is set to be slightly larger, it is similar to the decorative pattern 3 and is set to be about 100 to 300 μm larger than the width and length of the decorative pattern. As described above, the depth of the concave portion 2 is appropriately set in consideration of the thickness of the decorative pattern 3 and the fixing layer 4.

  Next, the concave portion 2 of the adherend 1 and the decorative pattern 3 are aligned so that the decorative pattern 3 is fixed in the concave portion via the fixing layer 4, and the decorative pattern 3 is fixed in the concave portion. 4 is fitted (FIG. 8).

Next, when the fixing layer 4 is made of a mixed adhesive of a hot-melt adhesive and an ultraviolet curable adhesive, ultraviolet irradiation is performed from the application tape side (FIG. 9), and heating, heating and pressurization are performed from the application tape side. (FIG. 10). It is preferable to use a heat-resistant rubber stamp 13 having the same size as that of the decorative pattern 3 for the heating or heating and pressurizing treatment. This condition is appropriately selected depending on the properties of the hot melt adhesive used, but the preferable rubber surface temperature is 90 to 150 ° C, more preferably 90 to 130 ° C, and the preferable pressure is 3 to 5 kg / cm ² , and a preferable pressure bonding time is 5 to 15 seconds. When the ultraviolet ray is irradiated, the fixing layer 4 located on the lower surface of the decorative pattern 3 is concealed by the decorative pattern 3 so that the ultraviolet ray does not reach and remains in an uncured state. Can be fixed in the recess. Further, even if the ultraviolet irradiation is inappropriate and the ultraviolet curable adhesive is excessively cured, the adhesive force is complemented by the hot melt adhesive, so that the decorative pattern 3 can be reliably fixed in the recess. On the other hand, the adhesive protruding from the peripheral portion of the decorative pattern 3 is polymerized and cured because it is irradiated with ultraviolet rays, and forms a cured product integrated with the adhesive layer 7 of the application tape 12. In particular, when the adhesive layer 7 and the fixing layer 4 of the application tape 12 are formed of the same or similar adhesive, both are firmly integrated.

  When the fixing layer 4 is formed of a hot melt adhesive, as shown in FIG. 10, heating or heating and pressing are performed from the application tape 12 side, that is, from the base material 8 side of the tape 12. As a result, the decorative pattern 3 can be fixed in the recess through the fixing layer 4. On the other hand, the adhesive protruding to the periphery of the decorative pattern 3 forms a cured product integrated with the adhesive layer 7.

Finally, when the application tape 12 is peeled from the adherend 1, the tape 12 is peeled on the base material 8 together with the cured product of the adhesive layer 7 and the adhesive for the adhesive layer protruding from the decorative pattern. Since the adhesive that protrudes from the periphery of the decorative pattern 3 is integrated with the adhesive layer 7, the cured product of the adhesive for the fixing layer remains on the surface of the adherend 1 and the peripheral portion of the decorative pattern 3. There is no. As a result, the decorative pattern 3 is fixed in the concave portion of the adherend 1 via the fixing layer 4, and the decorative plate 10 according to the present invention shown in FIG. 1 is obtained.

  In particular, when a resin coat layer is provided on the surface and side surfaces of the decorative pattern 3, the adhesive for forming the fixing layer 4 and the adhesive layer 7 of the application tape 12 used in the transfer process are used to form the surface of the decorative pattern 3 and It can be prevented from remaining on the side. For this reason, since the adhesive does not cause stringing in the transfer process and the fixing process, the decorative plate 10 without dirt can be manufactured.

  Further, if the surface of the decorative pattern 3 is peeled off, not only adhesion of the adhesive on the surface of the decorative pattern 3 is prevented, but also when the application tape 12 is peeled off from the decorative pattern 3, Since it peels reliably between pattern surfaces, it can prevent that the decoration pattern 3 adheres to the application tape 12 side and peels off, and can fix the decoration pattern 3 in the recessed part of the to-be-adhered body 1 reliably. Become.

  Further, when the fixing layer 4 contains an ultraviolet curable adhesive, the adhesive strength of the uncured product (adhesive) of the ultraviolet curable adhesive is further improved by performing aging as necessary, and the decorative pattern 3 can be firmly bonded in the recess of the adherend 1.

  When the adhesive constituting the fixing layer 4 includes a hot melt adhesive, the application tape is peeled off immediately after the heat-resistant rubber marking, preferably in a state where the temperature of the adhesive is 50 ° C. or higher. It is preferable. If the temperature is too low, the adhesive strength of the hot melt adhesive becomes strong, it becomes difficult to peel off, and the adhesive that protrudes around the decorative pattern 3 may remain.

  According to the present invention, it is possible to provide a firmly bonded decorative plate that does not drop an image due to an impact even with a small decorative pattern. In addition, a decorative plate that can prevent damage due to wear and contact even with an image having a sharp edge, and that can effectively use the metallic luster inherent in the decorative pattern, and a method for manufacturing the decorative plate are provided. Furthermore, according to the present invention, there is provided a decorative plate having an excellent appearance without causing the adhesive for fixing the decorative pattern to protrude from the decorative pattern or remain on the adherend.

It is sectional drawing which shows the one aspect | mode of the decoration plate which concerns on this invention. The outline of 1 process of the manufacturing method concerning the present invention is shown. The outline of 1 process of the manufacturing method concerning the present invention is shown. The outline of 1 process of the manufacturing method concerning the present invention is shown. The outline of 1 process of the manufacturing method concerning the present invention is shown. The outline of 1 process of the manufacturing method concerning the present invention is shown. The outline of 1 process of the manufacturing method concerning the present invention is shown. The outline of 1 process of the manufacturing method concerning the present invention is shown. The outline of 1 process of the manufacturing method concerning the present invention is shown. The outline of 1 process of the manufacturing method concerning the present invention is shown.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Adhering body 2 ... Concave 3 ... Decoration pattern 4 ... Adhesion layer 5 ... Conductive film 6 ... Metal plate 7 ... Adhesive layer 8 ... Base material 9 ... Process control pattern 10 ... Decoration plate 11 ... Support base material 12 ... Application tape 13 ... Heat resistant rubber stamp

Claims (10)

The thickness of the adherend that is similar to the decorative pattern and that has a concave part that is 100 to 300 μm larger than the width and length of the decorative pattern, and the thickness of the decorative pattern and the decorative pattern fixing layer is the depth of the concave part. The concave portion having a thickness within a range of −100 μm to ± 0 μm and a decorative pattern having substantially the same shape,
From a support member for producing a decorative pattern having a resin coat layer on the surface and side surfaces of the decorative pattern, the adhesive force is greater than that of the base material and the adhesive formed on the support member, and the adhesive force is increased by irradiation with ultraviolet rays. Decrease UV curable adhesive layer, or decorative pattern transferred to application tape with adhesive layer containing UV curable adhesive and hot melt adhesive whose adhesive strength is reduced by UV irradiation with substrate In the recess
(i) a mixed adhesive of a hot melt adhesive and an ultraviolet curable adhesive whose adhesive strength is reduced by irradiation with ultraviolet rays,
(ii) hot melt adhesive, or
(iii) Fixing via an adhesive layer for decorative pattern selected from the group consisting of pressure-sensitive adhesives, and irradiating the adhesive layer of the application tape with ultraviolet rays, thereby providing an application tape having a substrate and an adhesive layer. A decorative plate characterized by peeling.   The decorative plate according to claim 1, wherein the decorative pattern is an electrodeposition image.   The decorative plate according to claim 1, wherein the decorative pattern is an etching image. An ultraviolet curing method in which a decorative pattern is formed on a support member having an adhesive layer so as to be aligned and temporarily attached, and has a larger adhesive force than the adhesive formed on the support member and lowers the adhesive force when irradiated with ultraviolet rays. The decorative pattern is transferred to an application tape having a mold adhesive layer or an adhesive layer containing a hot melt adhesive whose adhesive strength is reduced by irradiation with ultraviolet rays,
On the side where the decorative pattern is bonded,
(I) a mixed adhesive of a hot melt adhesive and an ultraviolet curable adhesive whose adhesive strength is reduced by irradiation with ultraviolet rays;
(Ii) hot melt adhesive, or
(Iii) forming an adhering layer for decorative patterns selected from the group consisting of pressure-sensitive adhesives,
It is substantially the same shape as the decorative pattern, and is 100 to 300 μm larger than the width and length of the decorative pattern, and the total thickness of the decorative pattern and the decorative pattern fixing layer is relative to the depth of the concave portion. A decorative pattern is fitted into the concave portion of the adherend having a thickness in the range of −100 μm to ± 0 μm, and the decorative pattern is fitted via the decorative pattern fixing layer, thereby decorating the decorative pattern. Fixed through
A method for producing a decorative plate, comprising: irradiating an adhesive layer of an application tape with ultraviolet rays, and peeling the application tape having the base material and the adhesive layer from the decorative pattern.   The adhesive layer of an application tape contains an ultraviolet curable adhesive agent, and after transferring this decoration pattern to an application tape, it further includes the process of irradiating an ultraviolet-ray to an adhesive layer and reducing the adhesive force. A method for producing a decorative plate.   The decorative layer fixing layer includes an ultraviolet curable adhesive and a hot melt adhesive, and after the decorative pattern is fitted into the adherend recess, the ultraviolet light is irradiated from the application tape side, and the application tape side is heated or heated. The method for manufacturing a decorative plate according to claim 4, further comprising a step of applying pressure.   The decorative plate according to claim 4, further comprising a step of heating or heating and pressing from the application tape side after the decorative pattern fixing layer includes a hot melt adhesive, and the decorative pattern is fitted into the adherend recess. Manufacturing method.   The method for manufacturing a decorative plate according to claim 4, further comprising a step of performing a peeling process on the surface of the decorative pattern in a state where the decorative pattern is aligned and temporarily attached on the support member.   5. The method for manufacturing a decorative plate according to claim 4, further comprising a step of resin-coating the decorative pattern surface and side surfaces in a state where the decorative pattern is aligned and temporarily attached on the support member.   5. The method of manufacturing a decorative plate according to claim 4, further comprising a step of resin-coating the decorative pattern surface and side surfaces with the decorative pattern aligned and temporarily attached on the support member, and subjecting the resin-coated surface to a peeling treatment. .

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