WO2012020621A1 - Method for producing transfer-decorated product, transfer-decoration device, and transfer-decorated product - Google Patents
Method for producing transfer-decorated product, transfer-decoration device, and transfer-decorated product Download PDFInfo
- Publication number
- WO2012020621A1 WO2012020621A1 PCT/JP2011/066121 JP2011066121W WO2012020621A1 WO 2012020621 A1 WO2012020621 A1 WO 2012020621A1 JP 2011066121 W JP2011066121 W JP 2011066121W WO 2012020621 A1 WO2012020621 A1 WO 2012020621A1
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- WO
- WIPO (PCT)
- Prior art keywords
- transfer
- mold
- decorated
- transfer sheet
- medium
- Prior art date
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C37/00—Component parts, details, accessories or auxiliary operations, not covered by group B29C33/00 or B29C35/00
- B29C37/0025—Applying surface layers, e.g. coatings, decorative layers, printed layers, to articles during shaping, e.g. in-mould printing
- B29C37/0028—In-mould coating, e.g. by introducing the coating material into the mould after forming the article
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B44—DECORATIVE ARTS
- B44C—PRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
- B44C1/00—Processes, not specifically provided for elsewhere, for producing decorative surface effects
- B44C1/16—Processes, not specifically provided for elsewhere, for producing decorative surface effects for applying transfer pictures or the like
- B44C1/165—Processes, not specifically provided for elsewhere, for producing decorative surface effects for applying transfer pictures or the like for decalcomanias; sheet material therefor
- B44C1/17—Dry transfer
- B44C1/1712—Decalcomanias applied under heat and pressure, e.g. provided with a heat activable adhesive
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C37/00—Component parts, details, accessories or auxiliary operations, not covered by group B29C33/00 or B29C35/00
- B29C37/0025—Applying surface layers, e.g. coatings, decorative layers, printed layers, to articles during shaping, e.g. in-mould printing
- B29C37/0028—In-mould coating, e.g. by introducing the coating material into the mould after forming the article
- B29C2037/0046—In-mould printing, in-mould transfer printing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14688—Coating articles provided with a decoration
- B29C2045/14729—Coating articles provided with a decoration decorations not in contact with injected material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2795/00—Printing on articles made from plastics or substances in a plastic state
- B29C2795/007—Printing on articles made from plastics or substances in a plastic state after shaping
Definitions
- the present invention relates to a method for manufacturing a transfer decorative product in which one surface of a body to be decorated is decorated by transfer, a transfer decorative device, and a transfer decorative product.
- Products with decorated surfaces of molded products such as metal and resin are used in various fields such as automobiles, household appliances, mobile phones, personal computers.
- the decoration on the surface of the molded product is performed, for example, by transferring a pattern of the transfer layer by bringing a transfer sheet having a transfer layer into contact with the surface of the molded product.
- a pressure forming apparatus shown in Patent Document 1 may be used to bring the transfer sheet into contact with the surface of the molded product.
- the transfer layer When transferring and decorating a metal body as an object to be decorated, the transfer layer does not adhere to the surface of the metal body unless the pressure for pressing the transfer sheet against the metal body is large enough.
- the surface of the object to be decorated is a three-dimensional shape such as a deeply drawn shape, even if a pressure forming apparatus is used, the transfer sheet is uniformly adhered to the surface of the object to be decorated. It is difficult to apply a sufficient pressure, and the facility itself is large in order to apply the necessary pressure.
- a product manufactured by this technology includes a metal part having an opening, a molded resin part integrated on the back surface side of the metal part so as to fill the opening, and a surface of the metal part and a molded resin part of the opening part. And a transfer layer formed continuously on the surface.
- a transfer sheet and a metal part are placed in a predetermined position in an injection mold, and molten resin is injected into the cavity, so that the injection molding of the molded resin part and the surface decoration by the transfer layer can be performed simultaneously. Done.
- the transfer sheet in the opening is stretched in the flow direction of the molten resin by the flow and heat of the molten resin, and the movement of the transfer sheet in the metal part is suppressed. Wrinkles may occur on the transfer sheet near the boundary between the molded resin portion and the metal portion at the tip of the resin flow.
- An object of the present invention is to obtain a transfer decorative product manufacturing method, a transfer decorative device, and a transfer decorative product in which the surface of the object to be decorated is simply and reliably decorated with a transfer layer.
- the present invention also provides a method for producing a transfer decorative product, a transfer decorative device, and a transfer decorative product, in which the transfer sheet is prevented from being wrinkled during decoration and the surface of the composite product is simply and reliably decorated with a transfer layer. The purpose is to provide.
- transfer decoration article which concerns on this invention is the position which arrange
- the transfer sheet is arranged at a position facing the surface of the object to be decorated
- the medium is injected into the cavity formed between the second mold and the transfer sheet, and the transfer sheet is decorated with the medium. Because it is pressed against the body, even if the surface of the object to be decorated has a three-dimensional shape such as a shape with a deep aperture, it is difficult for air to accumulate between the transfer sheet and the object to be decorated, and the transfer sheet and the object to be decorated Adhesion with the body is improved, and the transfer layer is reliably transferred to the object to be decorated.
- a medium which presses a transfer sheet toward a to-be-decorated body heat is provided with a pressure with respect to a transfer sheet, for example by using molten resin.
- the transfer sheet can be pressed against the object to be decorated while being softened by the heat of the medium, and the transfer layer can be easily transferred to the object to be decorated.
- the second characteristic means of the method for producing a transfer decorative article according to the present invention is that the medium is a thermoplastic resin.
- the medium injected into the cavity formed between the second mold and the transfer sheet is only used to press the transfer sheet against the surface of the object to be decorated. Is not included. Therefore, there is a high possibility that the used medium is discarded as it is, and when the medium is, for example, a molten resin, the environment is adversely affected.
- the medium is a thermoplastic resin
- the transfer sheet is pressed against the surface of the object to be decorated, it is injected at a high temperature and then softens by applying heat again even if it is solidified at a low temperature. . Therefore, the thermoplastic resin used to press the transfer sheet against the surface of the object to be decorated can be reused without being discarded.
- the third characteristic means of the method for producing a transfer decorative article according to the present invention is that it includes a step of performing vacuum suction so that the transfer sheet and the object to be decorated come into contact with each other before mold clamping.
- This feature means that the transfer sheet is in contact with the object to be decorated before the medium is injected to press the transfer sheet against the surface of the object to be decorated. When pressed, contact unevenness of the transfer sheet against the surface of the object to be decorated is unlikely to occur. Therefore, the adhesion between the transfer sheet and the object to be decorated is improved, and the transfer layer is reliably transferred to the object to be decorated.
- the fourth characteristic means of the method for producing a transfer decorative article according to the present invention is that it includes a step of clamping the transfer sheet along the clamping direction of the first mold and the second mold.
- the transfer sheet is sandwiched along the clamping direction of the first mold and the second mold, so that the transfer sheet is prevented from being displaced from the surface of the object to be decorated, and the object to be decorated
- the transfer sheet can be securely clamped and separated from the surface.
- the first characteristic configuration of the transfer decoration device is that the first and second molds that can be clamped to each other while forming a cavity therein and the transfer sheet having the transfer layer are in contact with each other.
- the object to be decorated is placed on the placement portion in contact with the transfer sheet, and the medium is injected from the medium injection mechanism into the cavity formed between the second mold and the transfer sheet.
- the transfer sheet can be pressed against the object to be decorated by the medium, and as a result, a transfer decorative product to which the transfer layer is reliably transferred can be produced.
- the 2nd characteristic structure of the transfer decoration apparatus which concerns on this invention clamps the said transfer sheet along the clamping direction of the said 1st type
- the transfer sheet is in contact with and separated from the object to be decorated in a state where the transfer sheet is clamped by the clamping clamp, so that the state in which the transfer sheet contacts the surface of the object to be decorated and the surface of the object to be decorated
- the state where the transfer sheet is separated is securely held.
- transfer decoration apparatus which concerns on this invention is the state which mounted the said to-be-decorated body in the mounting part mentioned above, and the peripheral part of the said to-be-decorated body spaces apart from the inner surface of the said 1st type
- a transfer sheet can be made to go inward of the peripheral part of a to-be-decorated body, and the transfer area
- a fourth characteristic configuration of the transfer decorating apparatus according to the present invention is that an adhesion preventing coating for preventing the transfer layer from being transferred from the transfer sheet is applied to the inner surface of the first mold.
- the anti-adhesion coating for preventing the transfer layer from being transferred from the transfer sheet is applied to the inner surface of the first mold as in this configuration, the transfer of the transfer layer to the inner surface of the mold is surely prevented. be able to.
- a fifth characteristic configuration of the transfer decoration device according to the present invention is that a pressurizing mechanism for increasing the pressure of the medium in a state where the medium is injected into the cavity is provided.
- the characteristic structure of the transfer decorative article according to the present invention is that the transfer layer is transferred using the first to fourth characteristic means with respect to the concave portion or the convex portion formed on the surface of the object to be decorated. .
- the transfer layer is transferred using the first to fourth characteristic means to the concave portion or the convex portion formed on the surface of the object to be decorated as in this configuration, the surface of the object to be decorated is Even if the formed concave or convex portion is fine, the transfer layer that has received the heat and pressure of the medium is in close contact with the concave or convex portion.
- the transfer decorative article the concave portion or the convex portion formed on the surface of the object to be decorated is reliably transferred and decorated by the transfer layer.
- FIGS. 1 to 6 are diagrams showing the production process of the transfer decorative article.
- the transfer decorative product is manufactured by decorating the object to be decorated 20 using the transfer sheet 12 as a decorative sheet.
- a transfer decoration device used for manufacturing a transfer decoration product includes a first mold 1, a second mold 2, a transfer sheet holding mechanism, and a medium injection mechanism.
- the transfer decorative product includes a decorated body 20 having a convex portion 20a and a transfer layer 12a formed on the surface of the decorated body 20, and is manufactured through the following manufacturing steps.
- the transfer sheet 12 includes a base sheet 12b and a transfer layer 12a formed on the base sheet 12b.
- the base sheet 12b is a sheet body that supports the transfer layer 12a.
- a known transfer sheet substrate sheet can be used as the substrate sheet 12b.
- the constituent material of the base sheet 12b includes polyester resins such as polyethylene terephthalate, polypropylene resins, acrylic resins, polycarbonate resins, polyamide resins, polyimide resins, olefin resins, urethane resins, and acrylonitrile butadiene styrene resins.
- the base sheet 12b include a single layer sheet formed from the above synthetic resin, a laminated sheet in which two or more single layer sheets are laminated, and a copolymer sheet using the above synthetic resin.
- a base sheet such as a polyethylene terephthalate resin having good dimensional stability and not easily deformed by printing and drying.
- the transfer layer 12a includes, for example, a pattern layer that expresses characters and patterns, and an adhesive layer that improves the adhesion between the object to be decorated and the transfer layer. It may be provided with a hard coat layer that secures the strength of the surface of the object to be decorated 20 and improves scratch resistance, an anchor layer that improves interlayer adhesion, or a plurality of similar layers such as a plurality of design layers. .
- a release layer for improving the peelability of the transfer layer 12a from the base sheet 12b may be provided between the base sheet 12b and the transfer layer 12a.
- the pattern layer or the like is formed on the base sheet 12b by a printing method such as a gravure printing method, a screen printing method, or an offset printing method, or a coating method such as a gravure coating method, a roll coating method, or a comma coating method.
- a printing method such as a gravure printing method, a screen printing method, or an offset printing method
- a coating method such as a gravure coating method, a roll coating method, or a comma coating method.
- the decorated body 20 is, for example, a metal press plate having a convex portion 20a, a resin molded body, glass, or the like.
- the surface of the object to be decorated 20 is not subjected to any pretreatment, is subjected to surface treatment such as alumite treatment (when the object to be decorated 20 is aluminum), frame treatment, plasma treatment, or the like, or the transfer layer 12a
- a surface treatment such as application of an adhesive is performed in advance so that the transfer layer 12a can be easily adhered to the sheet. It is necessary to select a suitable material for the surface treatment of the object to be decorated 20 and the surface covering material according to each combination of the object to be decorated 20 and the transfer layer 12a formed on the surface.
- the first mold 1 is formed with a mounting portion 1 ⁇ / b> A on which the body to be decorated 20 is arranged protruding from the inner surface.
- the placement unit 1 ⁇ / b> A has a shape corresponding to the shape of the back surface of the object to be decorated 20. Therefore, 1 A of mounting parts may be formed in planar shape or concave shape.
- mold 1 is comprised so that the transfer sheet 12 may be arrange
- the transfer sheet 12 is arranged between the object to be decorated 20 and the second mold 2 at the stage where the arrangement of the object to be decorated 20 on the placement unit 1A of the first mold 1 is completed.
- the transfer sheet 12 includes a transfer layer 12a and a base sheet 12b, and the transfer layer 12a decorates the surface of the object to be decorated.
- the transfer sheet 12 is, for example, a roll-shaped long film developed and arranged at the position.
- a cavity surface 2A having a shape along the surface of the object to be decorated 20 is formed in the second mold 2, and by clamping with the first mold 1, the object to be decorated 20 and the cavity surface 2A are formed.
- a cavity space V in which resin can be injected is formed therebetween.
- the first mold 1 is provided with a first clamp 4 and a second clamp 5 that are elastically biased toward the mold surface 1a.
- the first clamp 4 is provided at a position closer to the mold surface 1 a than the second clamp 5, and the operating rod 6 penetrating the inside of the first mold 1 is the first mold 1. It is attached to the movable plate 7 in the space 1B provided inside.
- the second clamp 5 is attached to the movable plate 9 of the space portion 1 ⁇ / b> B in which the operating rod 8 penetrating the inside of the first mold 1 is provided inside the first mold 1.
- the movable plate 9 is provided at a position farther from the mold surface 1a than the movable plate 7 to which the operation rod 6 of the first clamp 4 is attached.
- the operation rod 8 passes through the movable plate 7 and is attached to the movable plate 9. ing.
- the movable plate 7 is urged in a direction away from the mold surface 1a by an elastic member 7a disposed between the movable plate 7 and the wall surface of the space 1B on the mold surface 1a side.
- the movable plate 9 is connected to the movable plate 7 via an elastic member 9a, and the elastic member 9a biases the movable plate 9 in a direction away from the mold surface 1a.
- the first clamps 4 and 5 are elastically biased toward the mold surface 1a.
- the space 1B is provided with a fixed plate 10 at a position closer to the mold surface 1a than the movable plates 7 and 9.
- the movable plate 9 When the movable plate 9 receives a pressing force from an eject rod, an air cylinder or the like and moves in a direction approaching the mold surface 1a of the first mold 1 against the elastic member 9a, the movable plate 7 also moves in the same direction via the elastic member 9a. The actuating rods 6 and 8 move the first clamp 4 and the second clamp 5 away from the mold surface 1a. At this time, the transfer sheet 12 is held between the first clamp 4 and the second clamp 5. When the movable plate 9 further moves in a direction approaching the mold surface 1a, the movable plate 7 comes into contact with the fixed plate 10 and stops. However, the movable plate 9 moves to the mold surface 1a against the elastic member 9a even after the movable plate 7 stops. As a result, the second clamp 5 is separated from the first clamp 4 and becomes a position where the transfer sheet 12 is allowed to move.
- the movable plate 9 when the movable plate 9 does not receive the pressing force of the eject rod, the air cylinder, etc., the movable plate 9 receives the elastic urging force of the elastic member 9a and moves away from the mold surface 1a of the first mold 1.
- the movable plate 7 also receives the elastic biasing force of the elastic member 7a and moves in a direction away from the mold surface 1a of the first mold 1. That is, the first clamp 4 and the second clamp 5 are close to the mold surface 1 a, and the second clamp 5 comes into contact with the first clamp 4 to hold and hold the transfer sheet 12.
- the second mold 2 is provided with a gate 11 for injecting and injecting a molten resin (medium) 30 as a medium injection mechanism.
- the gate 11 is formed on the cavity surface 2 ⁇ / b> A so as to face the surface of the object to be decorated 20 disposed on the placement unit 1 ⁇ / b> A. Then, in the state where the first mold 1 and the second mold 2 are clamped, the gate 11 passes through the cavity V formed between the cavity surface 2A and the transfer sheet 12 disposed on the surface of the object to be decorated 20. Medium is injected.
- the medium 30 to be injected is a liquid having viscosity, a molten resin having fluidity, or the like.
- the molten resin may be either a thermoplastic resin or a thermosetting resin.
- the medium 30 injected into the cavity V formed between the cavity surface 2A and the transfer sheet 12 is used only to press the transfer sheet 12 against the surface of the object to be decorated 20. Therefore, in the present invention, the used medium 30 is not discarded but reused.
- a thermoplastic resin is used as the molten resin.
- the medium 30 is a thermoplastic resin
- it is injected in a high temperature state when the transfer sheet 12 is pressed against the surface of the object to be decorated 20, and then softens by applying heat again even if it becomes solid at a low temperature.
- the thermoplastic resin include PC / ABS, PE, ABS, PS, SAN, EVA, PVC, PMMA, PA, POM, PBT and the like.
- the object to be decorated 20 is arranged on the placement portion 1 ⁇ / b> A of the first mold 1 using a manipulator or the like not shown, and the decoration to be decorated is arranged on the second mold 2 and the first mold 1.
- the transfer sheet 12 is placed between the body 20.
- the object to be decorated 20 disposed on the placement unit 1 ⁇ / b> A of the first mold 1 is sucked and held by the suction unit 13 provided in the first mold 1.
- the first clamp 4 and the second clamp 5 are used. Is moved in the direction of the mold surface 1 a of the first mold, and the transfer sheet 12 is made to follow the surface of the object to be decorated 20. At this time, the transfer sheet 12 is sucked and held by the suction unit 13 provided in the first mold 1.
- molten resin 30 is injected from the gate 11 provided in the second mold 2 into the formed cavity V.
- the transfer sheet 12 is pressed toward the surface of the object to be decorated 20 by the molten resin 30 injected into the cavity V, and as a result, the transfer sheet 12 is securely bonded to the surface of the object to be decorated 20.
- the molten resin 30 injected into the cavity V has a high temperature
- the molten resin 30 heats the transfer sheet 12 and further heats the surface of the object to be decorated 20.
- the transfer layer 12a of the transfer sheet 12 is more reliably transferred to the surface.
- the temperature of the injected molten resin is set to be 280 ° C. or higher, for example, and the first mold 1 and the second mold are set to be 80 ° C. or higher, for example.
- the second mold is separated from the first mold, the mold clamping is released, and the transfer film 12 is sandwiched between the first clamp 4 and the second clamp 5. It leaves
- the transfer decorative article P is extruded and taken out by an extrusion bar (not shown) provided in the first mold 1, and an extrusion bar (not shown) provided in the second mold 2.
- the molten resin 30 cured by the above is extruded, and the transfer sheet 12 is restarted.
- the surface of the object to be decorated 20 is reliably decorated by the transfer layer 12a.
- the surface of the object to be decorated 20 can be decorated by the manufacturing method and the transfer decoration device according to the present invention.
- a thermoplastic resin is used as the molten resin 30
- another treatment such as heating the cured resin back to the molten resin is performed, and the resin is reused as a medium to be injected into the cavity V.
- FIG. 7A shows a state immediately after the molten resin is injected
- FIG. 7B shows a state where the injected molten resin is compressed.
- a slide mold 3 is provided inside the cavity surface of the second mold 2 as a pressurizing mechanism for increasing the pressure of the medium 30 in the cavity V.
- the slide mold 3 can be moved relative to the second mold 2 in the mold clamping direction, and the slide mold 3 is attached in a direction away from the first mold 1 between the slide mold 3 and the second mold 2.
- An elastic member 3a is provided.
- the area of the cavity V is reduced, the injected molten resin 30 is compressed, and the pressing force of the transfer sheet 12 to the entire surface of the object to be decorated 20 is increased, so that the transfer to the object to be decorated 20 is performed.
- the transfer by the layer is more reliably performed.
- the to-be-decorated body 20 shows the example mounted in the mounting part 1A of the 1st type
- the mounting portion 1 ⁇ / b> A formed on the first mold 1 is in a state where the decorated body 20 is placed on the placing portion 1 ⁇ / b> A, and the peripheral portion of the decorated body 20.
- the height 20b may be set so as to be separated from the mold surface 1a of the first mold 1.
- the transfer sheet 12 can go inward from the peripheral edge 20b of the object to be decorated 20, The transfer area of the object to be decorated 20 is expanded.
- the transfer sheet 12 and the molten resin 30 wrap around inward from the peripheral edge 20b of the object to be decorated 20, the molten resin 30 and the transfer sheet from the surface of the object to be decorated 20 when the mold is opened.
- the molten resin 30 is made of a soft resin such as rubber or urethane
- the transfer sheet 12 is a sheet.
- a mechanism for removing the undercut is incorporated in the mold.
- an adhesion preventing coating 14 for preventing the transfer layer from being transferred from the transfer sheet 12 may be applied to the mold surface 1 a of the first mold 1.
- the adhesion preventing coating 14 when the adhesion preventing coating 14 is applied to the mold surface 1a, the transfer of the transfer layer 12a to the mold surface 1a can be reliably prevented.
- the anti-adhesion coating 14 silicon or fluorine is applied to the mold surface 1a, surface unevenness treatment (blasting / etching) is performed, or both of them are used in combination.
- a member for reducing friction such as Teflon (registered trademark) or a coated ring may be disposed on the surface of the first clamp 4 and the second clamp 5 that holds the transfer sheet 12.
- Teflon registered trademark
- a coated ring may be disposed on the surface of the first clamp 4 and the second clamp 5 that holds the transfer sheet 12.
- the to-be-decorated body 20 is equipped with the penetration part 20c etc., and an unevenness
- the surface of the object to be decorated 20 is only decorated with the transfer layer 12a.
- the first mold 1 is also provided with a gate for injecting resin, and the surface of the object to be decorated 20 is decorated.
- the resin portion may be formed on the back surface of the object to be decorated 20 simultaneously with the decoration by the transfer layer 12a.
- a temperature adjusting mechanism that adjusts the temperature of the mold may be provided in the first mold 1 to adjust the temperature of the object to be decorated 20. If it carries out like this, when the to-be-decorated body 20 is a metal body, it becomes easy to transfer the transfer layer of a transfer sheet with respect to the surface of the to-be-decorated body 20 heated by the temperature control mechanism.
- the transfer decoration device is arranged in the vertical direction (vertical direction), but may be arranged in the horizontal direction (lateral direction).
- the transfer sheet 12 is brought into close contact with the surface of the object to be decorated 20 and the transfer layer 12a is transferred using pressure and heating by the molten resin 30.
- the pressurization is a direct pressurization to the transfer sheet 12
- the heating is a direct heating to the transfer sheet 12 and a heating to the object to be decorated 20. Since the transfer sheet 12 is brought into close contact with the surface of the object to be decorated 20 by a fluid such as a molten resin 30, not only the surface of the object to be decorated 20 is smooth but also the case of a fine uneven shape such as embossing or embossing.
- the molten resin 30 flows into the concavo-convex shape, the transfer sheet 12 adheres to the concavo-convex shape with high accuracy, and the transfer layer 12a can be transferred to the concavo-convex shape with high accuracy. Or even if it is a large uneven
- the transfer sheet 12 and the object to be decorated 20 in the process of closely contacting the transfer sheet 12 It is also possible to effectively prevent the occurrence of so-called air pockets that create air pockets between them.
- a material having good dimensional stability and hardly deformed by printing and drying can be selected for the base sheet 12b. Transfer can be performed using the transfer sheet 12 with high accuracy. Therefore, as a result, it is possible to manufacture a transfer decorative product P with high positional accuracy between the position and size of the symbol and the uneven shape of the object to be decorated 20.
- the to-be-decorated body 20 may be a composite product having a surface in which the metal part 80 and the molded resin part 81 are continuous as shown in FIG.
- the composite article has a rectangular metal part 80 in plan view with a large opening at the center, and the entire back surface of the metal part 80 so as to fill the opening 83.
- the molded resin portion 81 is integrated.
- the composite product has a shape in which the periphery rises slightly downward.
- the metal part 80 constitutes a part of the surface of the composite product, the surface of the molded resin part 81 constitutes the other part of the composite product, and the surface of the metal part 80 and the surface of the molded resin part 81 are smoothly connected. Yes.
- a front side housing of a mobile phone or a smartphone having the opening 83 as a liquid crystal display unit can be given.
- a transparent resin is used for the molded resin portion.
- a boss or a rib for fitting with the back side housing can be formed on the back surface of the transfer decorative product using the molded resin portion 81.
- the transfer decorative article includes a transfer layer 12a formed so as to cover the surface of the metal portion 80 and the surface of the molded resin portion 81.
- the transfer layer 12a include a transparent hard coat layer made of a photocurable resin or a thermosetting resin and improving the surface strength.
- the transfer layer 12a may be a single layer or a laminate of a plurality of layers, and a pattern may be partially formed in accordance with the shape of the composite product.
- the metal part 80 is, for example, a metal press plate such as aluminum having a convex part 20a.
- the metal part 80 may be a resin molded body, glass, or the like as long as it can be surface-decorated similarly to the metal plate.
- the surface of the metal portion 80 is not subjected to any pretreatment, is subjected to surface treatment such as anodizing (when the metal portion 80 is aluminum), flame treatment, plasma treatment, or the like, so that the transfer layer 12a is easily formed.
- a surface treatment such as application of an adhesive is performed in advance, or a sheet to which the transfer layer 12a is easily adhered is pasted in advance.
- the molded resin portion 81 may also be subjected to surface treatment or surface coating with an adhesive sheet, an adhesive layer, or the like so that the transfer layer 12a is easily fixed.
- Examples of the constituent material of the molded resin portion 81 include general-purpose resins such as polystyrene resin, polyolefin resin, ABS resin, ABS resin, AS resin, and AN resin. Also, general engineering resins such as polycarbonate resins and acrylic resins, and super engineering resins such as polyimide resins and liquid crystal polyester resins can be used. Furthermore, composite resins to which reinforcing materials such as glass fibers and inorganic fillers are added can also be used. In addition, when the to-be-decorated body 20 is a composite article, the to-be-decorated body 20 shown in FIGS. 1-8 is considered as what simplified and described the composite article shown in FIG.
- the present invention decorates the surface of the composite product in which the metal part 80 constituting a part of the surface and the molded resin part 81 constituting the other part of the surface are integrated.
- a method for producing a transferred decorative article wherein the step of disposing the composite product on the first mold 1 and the transfer sheet 12 having a transfer layer are arranged between the surface of the metal portion 80 and the surface of the molded resin portion 81.
- the decorative sheet S is manufactured from the manufacturing method shown in FIG. 7 of Japanese Patent Application No. 2009-272836.
- the metal portion 80 may be formed in a predetermined three-dimensional shape before being placed in the mold, or may be configured to be deformed into a predetermined three-dimensional shape at the time of injection molding.
- the present invention also provides a transfer for producing a transfer decorative product in which the surface of a composite product in which a metal part 80 constituting a part of the surface and a molded resin part 81 constituting another part of the surface are integrated is decorated.
- a first mold 1 that is a decoration device, in which a composite article in which a transfer sheet 12 having a transfer layer is arranged on the surface is provided with a placement portion on which the back surface of the composite article comes in contact;
- a second mold 2 in which a cavity is formed between the first mold 1 and the surface of the transfer sheet 12, and a medium injection mechanism for injecting a medium 30 for pressing the transfer sheet 12 against the composite product into the cavity; It has.
- the present invention is a transfer decorative article, in which a metal part 80 constituting a part of the surface and a molded resin part 81 constituting another part of the surface are integrated, and a concave or convex part is formed on the surface. And the transfer layer transferred to the concave portion or the convex portion using the above-described manufacturing method.
- the medium 30 is injected into the cavity formed between the second mold 2 and the transfer sheet 12 and transferred by the medium 30. Since the sheet 12 is pressed against the composite product, even if the surface of the composite product has a three-dimensional shape such as a shape with a deep aperture, it is difficult for air to accumulate between the transfer sheet 12 and the composite product. Adhesion with the product is improved, and the transfer layer is reliably transferred to the composite product. It is also reliably transferred to the boundary 82 between the metal part 80 and the molded resin part 81.
- the transfer sheet 12 is prevented from being wrinkled during decoration, and the surface of the composite product is easily and reliably transferred. It can be decorated with layers. Even if the concave portion or the convex portion formed on the surface of the composite product is fine, the transfer layer that receives the heat and pressure of the medium closely contacts the concave portion or the convex portion. As a result, in the transfer decorative product, the concave portion or the convex portion formed on the surface of the composite product is reliably transferred and decorated by the transfer layer.
- the present invention relates to a transfer decorative product used in various fields such as automobiles, household appliances, mobile phones, personal computers, etc., regardless of whether it is an interior product or an exterior product, and a transfer layer on the surface of the object to be decorated. It can be widely used for the production of formed transfer decorations.
- Second mold 3 Slide mold 4 First clamp 5 Second clamp 11 Gate 12 Transfer sheet (decorative sheet) 13 Suction Part 14 Adhesion Prevention Coating 20 Decorated Body 20a Convex Part 30 Medium (Molten Resin) 80 Metal part 81 Molded resin part 82 Boundary V Cavity P Transfer decoration
Landscapes
- Injection Moulding Of Plastics Or The Like (AREA)
- Decoration By Transfer Pictures (AREA)
Abstract
Provided are a method for producing a transfer-decorated product, a transfer-decoration device, and a transfer-decorated product, by which decoration by a transfer layer can be easily and reliably performed onto a surface of a decoration receiving body. Disclosed is a method provided with a step for arranging a decoration receiving body (20) in a first die (1); a step for arranging a transfer sheet (12) having a transfer layer at a position opposing to a surface of the decoration receiving body (20); a step for die-clamping the first die (1) and a second die (2) to form a cavity between the second die (2) and the transfer sheet (12); and a step for injecting a medium (30) in the cavity, and pressing the transfer sheet (12) onto the decoration receiving body (20) by the medium (30) to transfer the transfer layer onto the decoration receiving body (20).
Description
本発明は、被加飾体の一方の面に転写による加飾が施された転写加飾品の製造方法、転写加飾装置及び転写加飾品に関する。
The present invention relates to a method for manufacturing a transfer decorative product in which one surface of a body to be decorated is decorated by transfer, a transfer decorative device, and a transfer decorative product.
金属や樹脂等の成形品の表面に加飾が施された製品は、自動車、家庭用電化製品、携帯電話、パーソナルコンピュータ等あらゆる分野で使用されている。成形品の表面への加飾は、例えば、転写層を有する転写シートを成形品の表面に接触させて転写層の模様を転写することで行う。しかしながら、転写される成形品の表面形状が立体形状である場合には、転写シートを成形品の表面に沿って接触させるため、例えば、特許文献1に示す圧空成形装置を用いることもある。
Products with decorated surfaces of molded products such as metal and resin are used in various fields such as automobiles, household appliances, mobile phones, personal computers. The decoration on the surface of the molded product is performed, for example, by transferring a pattern of the transfer layer by bringing a transfer sheet having a transfer layer into contact with the surface of the molded product. However, when the surface shape of the molded product to be transferred is a three-dimensional shape, for example, a pressure forming apparatus shown in Patent Document 1 may be used to bring the transfer sheet into contact with the surface of the molded product.
被加飾体として金属体に転写加飾する場合、金属体に対して転写シートを押し付ける圧力がある程度大きくないと、転写層が金属体の表面に密着しない。また、被加飾体の表面が絞りの深い形状等の立体形状の場合には、圧空成形装置を用いたとしても、被加飾体の表面に転写シートが均等に密着するように、均一で十分な圧力を付与することは困難であり、必要な圧力を付与するためには設備自体も大掛かりなものとなる。又、金属部と成形樹脂部とが連続する表面を有する複合品を加飾する技術がある(特願2009-272836、図7参照)。この技術で製造される製品は、開口を有する金属部と、その開口を充填するように金属部の裏面側に一体化された成形樹脂部と、金属部の表面と開口部分の成形樹脂部の表面に連続して形成された転写層とから構成されている。この製造方法では、射出成形金型内に転写シートと金属部とを所定の位置に配置し、キャビティに溶融樹脂を射出することにより、成形樹脂部の射出成形と転写層による表面加飾が同時に行われる。製品形状や成形条件によって、この製造方法では、溶融樹脂の流れと熱により、開口部分の転写シートは溶融樹脂の流れ方向に伸ばされ、金属部の転写シートは動きが抑制されているため、溶融樹脂の流れの先にある成形樹脂部と金属部との境界付近で転写シートにシワが発生することがある。
When transferring and decorating a metal body as an object to be decorated, the transfer layer does not adhere to the surface of the metal body unless the pressure for pressing the transfer sheet against the metal body is large enough. In addition, when the surface of the object to be decorated is a three-dimensional shape such as a deeply drawn shape, even if a pressure forming apparatus is used, the transfer sheet is uniformly adhered to the surface of the object to be decorated. It is difficult to apply a sufficient pressure, and the facility itself is large in order to apply the necessary pressure. There is also a technique for decorating a composite product having a surface in which a metal part and a molded resin part are continuous (see Japanese Patent Application No. 2009-272836, FIG. 7). A product manufactured by this technology includes a metal part having an opening, a molded resin part integrated on the back surface side of the metal part so as to fill the opening, and a surface of the metal part and a molded resin part of the opening part. And a transfer layer formed continuously on the surface. In this manufacturing method, a transfer sheet and a metal part are placed in a predetermined position in an injection mold, and molten resin is injected into the cavity, so that the injection molding of the molded resin part and the surface decoration by the transfer layer can be performed simultaneously. Done. Depending on the product shape and molding conditions, in this manufacturing method, the transfer sheet in the opening is stretched in the flow direction of the molten resin by the flow and heat of the molten resin, and the movement of the transfer sheet in the metal part is suppressed. Wrinkles may occur on the transfer sheet near the boundary between the molded resin portion and the metal portion at the tip of the resin flow.
この発明は、被加飾体の表面に簡易かつ確実に転写層による加飾が施される転写加飾品の製造方法、転写加飾装置及び転写加飾品を得ることを目的としている。又、この発明は、加飾時の転写シートのシワを防止して、複合品の表面を簡易かつ確実に転写層により加飾する、転写加飾品の製造方法及び転写加飾装置並びに転写加飾品を提供することを目的とする。
An object of the present invention is to obtain a transfer decorative product manufacturing method, a transfer decorative device, and a transfer decorative product in which the surface of the object to be decorated is simply and reliably decorated with a transfer layer. The present invention also provides a method for producing a transfer decorative product, a transfer decorative device, and a transfer decorative product, in which the transfer sheet is prevented from being wrinkled during decoration and the surface of the composite product is simply and reliably decorated with a transfer layer. The purpose is to provide.
本発明に係る転写加飾品の製造方法の第1特徴手段は、第1型に被加飾体を配置する工程と、転写層を有する転写シートを前記被加飾体の表面に対向する位置に配置する工程と、前記第1型と第2型とを型締めして、前記第2型と前記転写シートとの間にキャビティを形成する工程と、前記キャビティに媒体を注入し当該媒体により前記転写シートを前記被加飾体に押し付けるとともに、当該媒体で前記転写シートを加熱して前記被加飾体に前記転写層を転写する工程と、を備えた点にある。
The 1st characteristic means of the manufacturing method of the transcription | transfer decoration article which concerns on this invention is the position which arrange | positions a to-be-decorated body to a 1st type | mold, and the transfer sheet which has a transfer layer in the position facing the surface of the said to-be-decorated body. Placing the first mold and the second mold, forming a cavity between the second mold and the transfer sheet, injecting a medium into the cavity, and And a step of pressing the transfer sheet against the object to be decorated and heating the transfer sheet with the medium to transfer the transfer layer to the object to be decorated.
このように、転写シートを被加飾体の表面に対向する位置に配置した後、第2型と転写シートとの間に形成されたキャビティに媒体を注入し、媒体により転写シートを被加飾体に押し付けるので、被加飾体の表面が絞りの深い形状等の立体形状であったとしても、転写シートと被加飾体との間にエア溜まりが発生し難く、転写シートと被加飾体との密着性が向上し、被加飾体に確実に転写層が転写される。
また、転写シートを被加飾体に向けて押し付ける媒体として、例えば溶融樹脂を用いることで、転写シートに対し圧力と共に熱が付与される。その結果、転写シートを媒体の熱により軟化させつつ被加飾体に押し付けることができ、被加飾体に対して転写層を転写し易くすることができる。さらに、大掛かりな製造装置を用いることなく、簡易な射出金型により転写加飾品の製造が可能となった。 In this way, after the transfer sheet is arranged at a position facing the surface of the object to be decorated, the medium is injected into the cavity formed between the second mold and the transfer sheet, and the transfer sheet is decorated with the medium. Because it is pressed against the body, even if the surface of the object to be decorated has a three-dimensional shape such as a shape with a deep aperture, it is difficult for air to accumulate between the transfer sheet and the object to be decorated, and the transfer sheet and the object to be decorated Adhesion with the body is improved, and the transfer layer is reliably transferred to the object to be decorated.
Moreover, as a medium which presses a transfer sheet toward a to-be-decorated body, heat is provided with a pressure with respect to a transfer sheet, for example by using molten resin. As a result, the transfer sheet can be pressed against the object to be decorated while being softened by the heat of the medium, and the transfer layer can be easily transferred to the object to be decorated. Furthermore, it has become possible to manufacture a transfer decorative product with a simple injection mold without using a large-scale manufacturing apparatus.
また、転写シートを被加飾体に向けて押し付ける媒体として、例えば溶融樹脂を用いることで、転写シートに対し圧力と共に熱が付与される。その結果、転写シートを媒体の熱により軟化させつつ被加飾体に押し付けることができ、被加飾体に対して転写層を転写し易くすることができる。さらに、大掛かりな製造装置を用いることなく、簡易な射出金型により転写加飾品の製造が可能となった。 In this way, after the transfer sheet is arranged at a position facing the surface of the object to be decorated, the medium is injected into the cavity formed between the second mold and the transfer sheet, and the transfer sheet is decorated with the medium. Because it is pressed against the body, even if the surface of the object to be decorated has a three-dimensional shape such as a shape with a deep aperture, it is difficult for air to accumulate between the transfer sheet and the object to be decorated, and the transfer sheet and the object to be decorated Adhesion with the body is improved, and the transfer layer is reliably transferred to the object to be decorated.
Moreover, as a medium which presses a transfer sheet toward a to-be-decorated body, heat is provided with a pressure with respect to a transfer sheet, for example by using molten resin. As a result, the transfer sheet can be pressed against the object to be decorated while being softened by the heat of the medium, and the transfer layer can be easily transferred to the object to be decorated. Furthermore, it has become possible to manufacture a transfer decorative product with a simple injection mold without using a large-scale manufacturing apparatus.
本発明に係る転写加飾品の製造方法の第2特徴手段は、前記媒体が熱可塑性樹脂である点にある。
The second characteristic means of the method for producing a transfer decorative article according to the present invention is that the medium is a thermoplastic resin.
第2型と転写シートとの間に形成されたキャビティに注入される媒体は、転写シートを被加飾体の表面に押し付けるために用いられるだけであり、最終的に製造される転写加飾品には何ら含まれない。したがって、使用済みの媒体はそのまま廃棄されてしまう可能性が高くなり、媒体が例えば溶融樹脂である場合には環境に対して悪影響を及ぼすことにもなる。しかし、媒体が熱可塑性樹脂であると、転写シートを被加飾体の表面に押し付ける際には、高温の状態で射出され、その後低温となって固化したとしても再び熱を加えることで軟化する。よって、転写シートを被加飾体の表面に押し付けるために用いられた熱可塑性樹脂は、廃棄することなく再度利用することができる。
The medium injected into the cavity formed between the second mold and the transfer sheet is only used to press the transfer sheet against the surface of the object to be decorated. Is not included. Therefore, there is a high possibility that the used medium is discarded as it is, and when the medium is, for example, a molten resin, the environment is adversely affected. However, when the medium is a thermoplastic resin, when the transfer sheet is pressed against the surface of the object to be decorated, it is injected at a high temperature and then softens by applying heat again even if it is solidified at a low temperature. . Therefore, the thermoplastic resin used to press the transfer sheet against the surface of the object to be decorated can be reused without being discarded.
本発明に係る転写加飾品の製造方法の第3特徴手段は、型締め前において、前記転写シートと前記被加飾体とが当接するように減圧吸引する工程を備えた点にある。
The third characteristic means of the method for producing a transfer decorative article according to the present invention is that it includes a step of performing vacuum suction so that the transfer sheet and the object to be decorated come into contact with each other before mold clamping.
本特徴手段により、転写シートを被加飾体の表面に押し付ける媒体の注入前に、転写シートが被加飾体に当接した状態となるので、媒体が転写シートを被加飾体の表面に押し付ける際に、被加飾体の表面に対する転写シートの当接ムラが起き難い。したがって、転写シートと被加飾体との密着性が向上し、被加飾体に確実に転写層が転写される。
This feature means that the transfer sheet is in contact with the object to be decorated before the medium is injected to press the transfer sheet against the surface of the object to be decorated. When pressed, contact unevenness of the transfer sheet against the surface of the object to be decorated is unlikely to occur. Therefore, the adhesion between the transfer sheet and the object to be decorated is improved, and the transfer layer is reliably transferred to the object to be decorated.
本発明に係る転写加飾品の製造方法の第4特徴手段は、前記転写シートを前記第1型と前記第2型との型締め方向に沿って挟持する工程を備えた点にある。
The fourth characteristic means of the method for producing a transfer decorative article according to the present invention is that it includes a step of clamping the transfer sheet along the clamping direction of the first mold and the second mold.
本特徴手段により、転写シートが第1型と第2型との型締め方向に沿って挟持されるので、転写シートが被加飾体の表面からずれることが抑制されるとともに、被加飾体の表面に対し転写シートを確実に挟持して当接離間することができる。
By this feature means, the transfer sheet is sandwiched along the clamping direction of the first mold and the second mold, so that the transfer sheet is prevented from being displaced from the surface of the object to be decorated, and the object to be decorated The transfer sheet can be securely clamped and separated from the surface.
本発明に係る転写加飾装置の第1特徴構成は、内部にキャビティを形成しつつ互いに型締め可能な第1型及び第2型と、転写層を有する転写シートと当接させた状態で被加飾体を載置可能に、前記第1型の内面に形成された載置部と、前記転写シートを前記被加飾体に押圧する媒体を前記キャビティに注入する媒体注入機構と、を備えた点にある。
The first characteristic configuration of the transfer decoration device according to the present invention is that the first and second molds that can be clamped to each other while forming a cavity therein and the transfer sheet having the transfer layer are in contact with each other. A mounting portion formed on the inner surface of the first mold, and a medium injection mechanism for injecting a medium for pressing the transfer sheet against the object to be decorated, into the cavity so that the decorative body can be placed; It is in the point.
本構成により、被加飾体を転写シートと当接させた状態で載置部に載置し、第2型と転写シートとの間に形成されたキャビティに、媒体注入機構から媒体を注入して媒体により転写シートを被加飾体に押し付けることができ、結果として、確実に転写層が転写された転写加飾品を製造できる。
With this configuration, the object to be decorated is placed on the placement portion in contact with the transfer sheet, and the medium is injected from the medium injection mechanism into the cavity formed between the second mold and the transfer sheet. Thus, the transfer sheet can be pressed against the object to be decorated by the medium, and as a result, a transfer decorative product to which the transfer layer is reliably transferred can be produced.
本発明に係る転写加飾装置の第2特徴構成は、前記転写シートを、前記第1型と前記第2型との型締め方向に沿って挟持し、前記転写シートを前記被加飾体に対して近接離間させる挟持クランプを備えた点にある。
The 2nd characteristic structure of the transfer decoration apparatus which concerns on this invention clamps the said transfer sheet along the clamping direction of the said 1st type | mold and the said 2nd type | mold, and the said transfer sheet is attached to the said to-be-decorated body On the other hand, it is provided with a clamping clamp for approaching and separating.
本構成により、転写シートが挟持クランプで挟持された状態で被加飾体に対して当接離間するので、被加飾体の表面に転写シートが当接する状態と、被加飾体の表面から転写シートが離間する状態が確実に保持される。その結果、被加飾体の表面に転写シートが当接する状態では、被加飾体に対し転写シートの位置がずれることが抑制され、被加飾体の表面から転写シートが離間する状態では、被加飾体の第1型の載置部への載置及び、転写加飾品の第1型からの取出しが容易となる。
With this configuration, the transfer sheet is in contact with and separated from the object to be decorated in a state where the transfer sheet is clamped by the clamping clamp, so that the state in which the transfer sheet contacts the surface of the object to be decorated and the surface of the object to be decorated The state where the transfer sheet is separated is securely held. As a result, in a state where the transfer sheet abuts on the surface of the object to be decorated, the position of the transfer sheet is prevented from shifting with respect to the object to be decorated, and in a state where the transfer sheet is separated from the surface of the object to be decorated, It becomes easy to place the object to be decorated on the placement part of the first type and to remove the transfer decoration from the first type.
本発明に係る転写加飾装置の第3特徴構成は、前記載置部に前記被加飾体を載置した状態で、前記被加飾体の周縁部が前記第1型の内面から離間するよう前記載置部の高さを設定してある点にある。
The 3rd characteristic structure of the transcription | transfer decoration apparatus which concerns on this invention is the state which mounted the said to-be-decorated body in the mounting part mentioned above, and the peripheral part of the said to-be-decorated body spaces apart from the inner surface of the said 1st type | mold. As described above, the height of the mounting portion is set.
本構成のように、載置部に被加飾体を載置した状態で、被加飾体の周縁部が第1型の内面から離間するよう載置部の高さを設定することで、被加飾体の周縁部の内方にまで転写シートを回り込ませることができ、被加飾体の表面の転写領域を拡げることができる。
By setting the height of the mounting part so that the peripheral part of the object to be decorated is separated from the inner surface of the first mold in the state where the object to be decorated is mounted on the mounting part as in this configuration, A transfer sheet can be made to go inward of the peripheral part of a to-be-decorated body, and the transfer area | region of the surface of a to-be-decorated body can be expanded.
本発明に係る転写加飾装置の第4特徴構成は、前記第1型の内面に、前記転写シートから転写層が転写されるのを防止する付着防止コーティングを施してある点にある。
A fourth characteristic configuration of the transfer decorating apparatus according to the present invention is that an adhesion preventing coating for preventing the transfer layer from being transferred from the transfer sheet is applied to the inner surface of the first mold.
本構成のように、第1型の内面に、転写シートから転写層が転写されるのを防止する付着防止コーティングを施してあると、金型の内面への転写層の転写を確実に防止することができる。
When the anti-adhesion coating for preventing the transfer layer from being transferred from the transfer sheet is applied to the inner surface of the first mold as in this configuration, the transfer of the transfer layer to the inner surface of the mold is surely prevented. be able to.
本発明に係る転写加飾装置の第5特徴構成は、前記キャビティに前記媒体を注入した状態で、前記媒体の圧力を高める加圧機構を備えている点にある。
A fifth characteristic configuration of the transfer decoration device according to the present invention is that a pressurizing mechanism for increasing the pressure of the medium in a state where the medium is injected into the cavity is provided.
本構成のように、前記キャビティに前記媒体を注入した状態で、前記媒体の圧力を高める加圧機構を備えていると、キャビティに注入された媒体が圧縮されて転写シートの被加飾体の表面への押付力がさらに全体的に増すこととなり、転写層の被加飾体の表面への転写をより確実に行うことができる。
As in this configuration, when a pressurizing mechanism for increasing the pressure of the medium is provided in a state where the medium is injected into the cavity, the medium injected into the cavity is compressed and the transfer sheet to be decorated The pressing force on the surface is further increased as a whole, and the transfer of the transfer layer to the surface of the object to be decorated can be performed more reliably.
本発明に係る転写加飾品の特徴構成は、被加飾体の表面に形成された凹部または凸部に対して、前記第1乃至第4特徴手段を用いて転写層が転写された点にある。
The characteristic structure of the transfer decorative article according to the present invention is that the transfer layer is transferred using the first to fourth characteristic means with respect to the concave portion or the convex portion formed on the surface of the object to be decorated. .
本構成のように、被加飾体の表面に形成された凹部または凸部に対し、前記第1乃至第4特徴手段を用いて転写層が転写されていると、被加飾体の表面に形成された凹部または凸部が微細であっても、媒体の熱と圧力を受けた転写層は凹部または凸部に沿って密接する。その結果、転写加飾品において、被加飾体の表面に形成された凹部または凸部は転写層によって確実に転写されて加飾されることとなる。また、転写加飾品において、被加飾体の表面加工(シボやローレット等)と絵柄の位置とを合わせることも可能となる。
When the transfer layer is transferred using the first to fourth characteristic means to the concave portion or the convex portion formed on the surface of the object to be decorated as in this configuration, the surface of the object to be decorated is Even if the formed concave or convex portion is fine, the transfer layer that has received the heat and pressure of the medium is in close contact with the concave or convex portion. As a result, in the transfer decorative article, the concave portion or the convex portion formed on the surface of the object to be decorated is reliably transferred and decorated by the transfer layer. In addition, in the transfer decorative product, it is possible to match the surface processing (texture, knurling, etc.) of the object to be decorated with the position of the pattern.
以下、本発明の実施形態を図面に基づいて説明する。
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
〔第1実施形態〕
図1~図6は、いずれも転写加飾品の製造工程を示す図である。転写加飾品は、被加飾体20に対し、加飾シートとして転写シート12を用いて加飾が施されて製造される。 [First Embodiment]
1 to 6 are diagrams showing the production process of the transfer decorative article. The transfer decorative product is manufactured by decorating the object to be decorated 20 using thetransfer sheet 12 as a decorative sheet.
図1~図6は、いずれも転写加飾品の製造工程を示す図である。転写加飾品は、被加飾体20に対し、加飾シートとして転写シート12を用いて加飾が施されて製造される。 [First Embodiment]
1 to 6 are diagrams showing the production process of the transfer decorative article. The transfer decorative product is manufactured by decorating the object to be decorated 20 using the
転写加飾品の製造に用いられる転写加飾装置は、第1型1、第2型2、転写シート保持機構、及び媒体注入機構を備える。転写加飾品は、凸状部20aを有する被加飾体20と、被加飾体20の表面に形成された転写層12aと、を備えており、以下の製造工程を経て製造される。
A transfer decoration device used for manufacturing a transfer decoration product includes a first mold 1, a second mold 2, a transfer sheet holding mechanism, and a medium injection mechanism. The transfer decorative product includes a decorated body 20 having a convex portion 20a and a transfer layer 12a formed on the surface of the decorated body 20, and is manufactured through the following manufacturing steps.
[転写シート]
転写シート12は、基体シート12bと基体シート12b上に形成された転写層12aとを備えている。基体シート12bは、転写層12aを支持するシート体である。基体シート12bは、公知の転写シートの基体シートを使用することができる。基体シート12bの構成材料としては、ポリエチレンテレフタレート等のポリエステル系樹脂、ポリプロピレン系樹脂、アクリル系樹脂、ポリカーボネート系樹脂、ポリアミド系樹脂、ポリイミド系樹脂、オレフィン系樹脂、ウレタン系樹脂及びアクリロニトリルブタジエンスチレン系樹脂からなる群より選択される少なくとも1種の合成樹脂が好ましく挙げられる。基体シート12bは、上記の合成樹脂から形成された単層シート、単層シートを2以上積層した積層シート、上記の合成樹脂を用いた共重合シート等が挙げられる。特に、この発明の各実施形態による転写加飾品の製造方法では、寸法安定性のよい、印刷乾燥により変形しにくいポリエチレンテレフタレート樹脂等の基体シートを容易に選択することができる。尚、真空吸引により転写シート12を被加飾体20に密着させた後、ゴム体で加圧する従来の転写では、所定の範囲で熱圧変形し易い基体シート12bを選択する必要がある。 [Transfer sheet]
Thetransfer sheet 12 includes a base sheet 12b and a transfer layer 12a formed on the base sheet 12b. The base sheet 12b is a sheet body that supports the transfer layer 12a. As the substrate sheet 12b, a known transfer sheet substrate sheet can be used. The constituent material of the base sheet 12b includes polyester resins such as polyethylene terephthalate, polypropylene resins, acrylic resins, polycarbonate resins, polyamide resins, polyimide resins, olefin resins, urethane resins, and acrylonitrile butadiene styrene resins. Preferably, at least one synthetic resin selected from the group consisting of: Examples of the base sheet 12b include a single layer sheet formed from the above synthetic resin, a laminated sheet in which two or more single layer sheets are laminated, and a copolymer sheet using the above synthetic resin. In particular, in the method for producing a transfer decorative article according to each embodiment of the present invention, it is possible to easily select a base sheet such as a polyethylene terephthalate resin having good dimensional stability and not easily deformed by printing and drying. In addition, in the conventional transfer in which the transfer sheet 12 is brought into close contact with the object to be decorated 20 by vacuum suction and then pressed with a rubber body, it is necessary to select a base sheet 12b that is easily deformed by heat and pressure within a predetermined range.
転写シート12は、基体シート12bと基体シート12b上に形成された転写層12aとを備えている。基体シート12bは、転写層12aを支持するシート体である。基体シート12bは、公知の転写シートの基体シートを使用することができる。基体シート12bの構成材料としては、ポリエチレンテレフタレート等のポリエステル系樹脂、ポリプロピレン系樹脂、アクリル系樹脂、ポリカーボネート系樹脂、ポリアミド系樹脂、ポリイミド系樹脂、オレフィン系樹脂、ウレタン系樹脂及びアクリロニトリルブタジエンスチレン系樹脂からなる群より選択される少なくとも1種の合成樹脂が好ましく挙げられる。基体シート12bは、上記の合成樹脂から形成された単層シート、単層シートを2以上積層した積層シート、上記の合成樹脂を用いた共重合シート等が挙げられる。特に、この発明の各実施形態による転写加飾品の製造方法では、寸法安定性のよい、印刷乾燥により変形しにくいポリエチレンテレフタレート樹脂等の基体シートを容易に選択することができる。尚、真空吸引により転写シート12を被加飾体20に密着させた後、ゴム体で加圧する従来の転写では、所定の範囲で熱圧変形し易い基体シート12bを選択する必要がある。 [Transfer sheet]
The
転写層12aは、例えば、文字や絵柄を表現する図柄層、被加飾体と転写層との接着性を向上させる接着層を備えている。被加飾体20の表面の強度を確保し耐擦傷性を向上させるハードコート層や層間密着性を向上させるアンカー層を備えたり、複数の図柄層等同種の層を複数備えたりしてもよい。基体シート12bと転写層12aとの間に基体シート12bからの転写層12aの剥離性を向上させる離型層を備えてもよい。図柄層等は、グラビア印刷法、スクリーン印刷法、オフセット印刷法等の印刷法、グラビアコート法、ロールコート法、コンマコート法等のコート法により基体シート12b上に形成される。
The transfer layer 12a includes, for example, a pattern layer that expresses characters and patterns, and an adhesive layer that improves the adhesion between the object to be decorated and the transfer layer. It may be provided with a hard coat layer that secures the strength of the surface of the object to be decorated 20 and improves scratch resistance, an anchor layer that improves interlayer adhesion, or a plurality of similar layers such as a plurality of design layers. . A release layer for improving the peelability of the transfer layer 12a from the base sheet 12b may be provided between the base sheet 12b and the transfer layer 12a. The pattern layer or the like is formed on the base sheet 12b by a printing method such as a gravure printing method, a screen printing method, or an offset printing method, or a coating method such as a gravure coating method, a roll coating method, or a comma coating method.
[被加飾体]
被加飾体20は、例えば、凸状部20aを有する金属プレス板、樹脂成形体、ガラス等である。被加飾体20の表面には、何ら前処理はなされないか、アルマイト処理(被加飾体20がアルミの場合)、フレーム処理、プラズマ処理等の表面処理がなされているか、転写層12aが形成され易いように予め接着剤の塗付等の表面処理がなされているか、転写層12aが接着し易いシートが予め貼り付けられる。被加飾体20の表面処理や表面の被覆材は、被加飾体20と表面に形成される転写層12aの各組合せに応じて適合する材質を選択する必要がある。 [Decorated body]
The decoratedbody 20 is, for example, a metal press plate having a convex portion 20a, a resin molded body, glass, or the like. The surface of the object to be decorated 20 is not subjected to any pretreatment, is subjected to surface treatment such as alumite treatment (when the object to be decorated 20 is aluminum), frame treatment, plasma treatment, or the like, or the transfer layer 12a A surface treatment such as application of an adhesive is performed in advance so that the transfer layer 12a can be easily adhered to the sheet. It is necessary to select a suitable material for the surface treatment of the object to be decorated 20 and the surface covering material according to each combination of the object to be decorated 20 and the transfer layer 12a formed on the surface.
被加飾体20は、例えば、凸状部20aを有する金属プレス板、樹脂成形体、ガラス等である。被加飾体20の表面には、何ら前処理はなされないか、アルマイト処理(被加飾体20がアルミの場合)、フレーム処理、プラズマ処理等の表面処理がなされているか、転写層12aが形成され易いように予め接着剤の塗付等の表面処理がなされているか、転写層12aが接着し易いシートが予め貼り付けられる。被加飾体20の表面処理や表面の被覆材は、被加飾体20と表面に形成される転写層12aの各組合せに応じて適合する材質を選択する必要がある。 [Decorated body]
The decorated
[第1型]
第1型1には、被加飾体20が配置される載置部1Aが内面から突出して形成されている。載置部1Aは、被加飾体20の裏面の形状に対応する形状である。したがって、載置部1Aは、平面状や、凹状に形成されていてもよい。また、第1型1は、型締めの際に、被加飾体20に沿って加飾シートとして転写シート12が配置されるよう構成されている。第1型1の載置部1Aへの被加飾体20の配置が終了した段階で、被加飾体20と第2型2との間に転写シート12が配置される。転写シート12は転写層12aと基体シート12bとで構成されており、転写層12aが被加飾体の表面を加飾する。当該転写シート12は、例えば、ロール状の長尺フィルムを当該位置に展開配置したものである。 [First type]
Thefirst mold 1 is formed with a mounting portion 1 </ b> A on which the body to be decorated 20 is arranged protruding from the inner surface. The placement unit 1 </ b> A has a shape corresponding to the shape of the back surface of the object to be decorated 20. Therefore, 1 A of mounting parts may be formed in planar shape or concave shape. Moreover, the 1st type | mold 1 is comprised so that the transfer sheet 12 may be arrange | positioned as a decorating sheet along the to-be-decorated body 20 in the case of mold clamping. The transfer sheet 12 is arranged between the object to be decorated 20 and the second mold 2 at the stage where the arrangement of the object to be decorated 20 on the placement unit 1A of the first mold 1 is completed. The transfer sheet 12 includes a transfer layer 12a and a base sheet 12b, and the transfer layer 12a decorates the surface of the object to be decorated. The transfer sheet 12 is, for example, a roll-shaped long film developed and arranged at the position.
第1型1には、被加飾体20が配置される載置部1Aが内面から突出して形成されている。載置部1Aは、被加飾体20の裏面の形状に対応する形状である。したがって、載置部1Aは、平面状や、凹状に形成されていてもよい。また、第1型1は、型締めの際に、被加飾体20に沿って加飾シートとして転写シート12が配置されるよう構成されている。第1型1の載置部1Aへの被加飾体20の配置が終了した段階で、被加飾体20と第2型2との間に転写シート12が配置される。転写シート12は転写層12aと基体シート12bとで構成されており、転写層12aが被加飾体の表面を加飾する。当該転写シート12は、例えば、ロール状の長尺フィルムを当該位置に展開配置したものである。 [First type]
The
[第2型]
第2型2には、被加飾体20の表面に沿った形状を有するキャビティ面2Aが形成されており、第1型1との型締めによって、被加飾体20とキャビティ面2Aとの間に樹脂が注入可能なキャビティ空間Vを形成する。 [Second type]
Acavity surface 2A having a shape along the surface of the object to be decorated 20 is formed in the second mold 2, and by clamping with the first mold 1, the object to be decorated 20 and the cavity surface 2A are formed. A cavity space V in which resin can be injected is formed therebetween.
第2型2には、被加飾体20の表面に沿った形状を有するキャビティ面2Aが形成されており、第1型1との型締めによって、被加飾体20とキャビティ面2Aとの間に樹脂が注入可能なキャビティ空間Vを形成する。 [Second type]
A
[転写シート保持機構]
転写シート保持機構として、第1型1には、型面1aに向けて弾性付勢された第1クランプ4と第2クランプ5とが設けられている。詳細には、図1に示すように、第1クランプ4は第2クランプ5よりも型面1aに近い位置に設けられ、第1型1の内部を貫通する作動ロッド6が第1型1の内部に設けられた空間部1Bの可動プレート7に取付けられている。また、第2クランプ5は、第1型1の内部を貫通する作動ロッド8が第1型1の内部に設けられた空間部1Bの可動プレート9に取付けられている。 [Transfer sheet holding mechanism]
As the transfer sheet holding mechanism, thefirst mold 1 is provided with a first clamp 4 and a second clamp 5 that are elastically biased toward the mold surface 1a. Specifically, as shown in FIG. 1, the first clamp 4 is provided at a position closer to the mold surface 1 a than the second clamp 5, and the operating rod 6 penetrating the inside of the first mold 1 is the first mold 1. It is attached to the movable plate 7 in the space 1B provided inside. The second clamp 5 is attached to the movable plate 9 of the space portion 1 </ b> B in which the operating rod 8 penetrating the inside of the first mold 1 is provided inside the first mold 1.
転写シート保持機構として、第1型1には、型面1aに向けて弾性付勢された第1クランプ4と第2クランプ5とが設けられている。詳細には、図1に示すように、第1クランプ4は第2クランプ5よりも型面1aに近い位置に設けられ、第1型1の内部を貫通する作動ロッド6が第1型1の内部に設けられた空間部1Bの可動プレート7に取付けられている。また、第2クランプ5は、第1型1の内部を貫通する作動ロッド8が第1型1の内部に設けられた空間部1Bの可動プレート9に取付けられている。 [Transfer sheet holding mechanism]
As the transfer sheet holding mechanism, the
可動プレート9は第1クランプ4の作動ロッド6が取り付けられる可動プレート7よりも型面1aから離間した位置に設けられており、作動ロッド8は可動プレート7を貫通して可動プレート9に取り付けられている。空間部1Bにおいて、可動プレート7は、可動プレート7と空間部1Bの型面1a側の壁面との間に配置された弾性部材7aによって型面1aから離間する方向に付勢されている。可動プレート9は可動プレート7に弾性部材9aを介して連結されており、弾性部材9aは可動プレート9を型面1aから離間する方向に付勢する。その結果、第1クランプ4、5が型面1aに向けて弾性付勢される。また、空間部1Bには可動プレート7及び9より型面1aに近い位置に固定プレート10が備えられている。
The movable plate 9 is provided at a position farther from the mold surface 1a than the movable plate 7 to which the operation rod 6 of the first clamp 4 is attached. The operation rod 8 passes through the movable plate 7 and is attached to the movable plate 9. ing. In the space 1B, the movable plate 7 is urged in a direction away from the mold surface 1a by an elastic member 7a disposed between the movable plate 7 and the wall surface of the space 1B on the mold surface 1a side. The movable plate 9 is connected to the movable plate 7 via an elastic member 9a, and the elastic member 9a biases the movable plate 9 in a direction away from the mold surface 1a. As a result, the first clamps 4 and 5 are elastically biased toward the mold surface 1a. The space 1B is provided with a fixed plate 10 at a position closer to the mold surface 1a than the movable plates 7 and 9.
可動プレート9がエジェクトロッド、エアシリンダ等による押圧力を受け、弾性部材9aに抗して第1型1の型面1aに近づく方向に移動すると、弾性部材9aを介して可動プレート7も同方向に移動して、作動ロッド6,8が第1クランプ4及び第2クランプ5を型面1aから離間させる。このとき、転写シート12は第1クランプ4及び第2クランプ5によって挟持された状態にある。可動プレート9がさらに型面1aに近づく方向に移動すると、可動プレート7は固定プレート10に当接して停止する。しかし、可動プレート9は可動プレート7の停止後も弾性部材9aに抗して型面1aに移動する。その結果、第2クランプ5が第1クランプ4から離間して転写シート12の移動を許容する位置となる。
When the movable plate 9 receives a pressing force from an eject rod, an air cylinder or the like and moves in a direction approaching the mold surface 1a of the first mold 1 against the elastic member 9a, the movable plate 7 also moves in the same direction via the elastic member 9a. The actuating rods 6 and 8 move the first clamp 4 and the second clamp 5 away from the mold surface 1a. At this time, the transfer sheet 12 is held between the first clamp 4 and the second clamp 5. When the movable plate 9 further moves in a direction approaching the mold surface 1a, the movable plate 7 comes into contact with the fixed plate 10 and stops. However, the movable plate 9 moves to the mold surface 1a against the elastic member 9a even after the movable plate 7 stops. As a result, the second clamp 5 is separated from the first clamp 4 and becomes a position where the transfer sheet 12 is allowed to move.
一方、可動プレート9がエジェクトロッド、エアシリンダ等の押圧力を受けない場合は、可動プレート9は弾性部材9aの弾性付勢力を受けて第1型1の型面1aから遠ざかる方向に移動し、可動プレート7も弾性部材7aの弾性付勢力を受けて第1型1の型面1aから遠ざかる方向に移動する。すなわち、第1クランプ4及び第2クランプ5は型面1aに近接し、第2クランプ5が第1クランプ4と当接して転写シート12を挟持して保持する位置となる。
On the other hand, when the movable plate 9 does not receive the pressing force of the eject rod, the air cylinder, etc., the movable plate 9 receives the elastic urging force of the elastic member 9a and moves away from the mold surface 1a of the first mold 1. The movable plate 7 also receives the elastic biasing force of the elastic member 7a and moves in a direction away from the mold surface 1a of the first mold 1. That is, the first clamp 4 and the second clamp 5 are close to the mold surface 1 a, and the second clamp 5 comes into contact with the first clamp 4 to hold and hold the transfer sheet 12.
[媒体注入機構]
第2型2には、媒体注入機構として溶融樹脂(媒体)30を射出して注入するゲート11が備えられている。ゲート11は、載置部1Aに配置された被加飾体20の表面に対向するようにキャビティ面2Aに形成されている。そして、第1型1と第2型2との型締めした状態において、キャビティ面2Aと被加飾体20の表面に配置された転写シート12との間に形成されるキャビティVにゲート11から媒体が注入される。 [Medium injection mechanism]
Thesecond mold 2 is provided with a gate 11 for injecting and injecting a molten resin (medium) 30 as a medium injection mechanism. The gate 11 is formed on the cavity surface 2 </ b> A so as to face the surface of the object to be decorated 20 disposed on the placement unit 1 </ b> A. Then, in the state where the first mold 1 and the second mold 2 are clamped, the gate 11 passes through the cavity V formed between the cavity surface 2A and the transfer sheet 12 disposed on the surface of the object to be decorated 20. Medium is injected.
第2型2には、媒体注入機構として溶融樹脂(媒体)30を射出して注入するゲート11が備えられている。ゲート11は、載置部1Aに配置された被加飾体20の表面に対向するようにキャビティ面2Aに形成されている。そして、第1型1と第2型2との型締めした状態において、キャビティ面2Aと被加飾体20の表面に配置された転写シート12との間に形成されるキャビティVにゲート11から媒体が注入される。 [Medium injection mechanism]
The
[媒体]
注入される媒体30は、粘度を有する液体や流動性を有する溶融樹脂等である。溶融樹脂については、熱可塑性樹脂、熱硬化性樹脂のいずれでであっても構わない。ただ、キャビティ面2Aと転写シート12との間に形成されたキャビティVに注入される媒体30は、転写シート12を被加飾体20の表面に押し付けるためだけに用いられる。よって、本発明では、使用済みの媒体30はそのまま廃棄するのではなく、再利用する。そのためには、溶融樹脂としては例えば熱可塑性樹脂を用いる。媒体30が熱可塑性樹脂であると、転写シート12を被加飾体20の表面に押し付ける際に高温の状態で注入され、その後低温となって固化したとしても再び熱を加えることで軟化するため、再利用が容易である。熱可塑性樹脂としては、例えば、PC/ABS、PE、ABS、PS、SAN、EVA、PVC、PMMA、PA、POM、PBT等が挙げられる。 [Medium]
The medium 30 to be injected is a liquid having viscosity, a molten resin having fluidity, or the like. The molten resin may be either a thermoplastic resin or a thermosetting resin. However, the medium 30 injected into the cavity V formed between thecavity surface 2A and the transfer sheet 12 is used only to press the transfer sheet 12 against the surface of the object to be decorated 20. Therefore, in the present invention, the used medium 30 is not discarded but reused. For this purpose, for example, a thermoplastic resin is used as the molten resin. When the medium 30 is a thermoplastic resin, it is injected in a high temperature state when the transfer sheet 12 is pressed against the surface of the object to be decorated 20, and then softens by applying heat again even if it becomes solid at a low temperature. Easy to reuse. Examples of the thermoplastic resin include PC / ABS, PE, ABS, PS, SAN, EVA, PVC, PMMA, PA, POM, PBT and the like.
注入される媒体30は、粘度を有する液体や流動性を有する溶融樹脂等である。溶融樹脂については、熱可塑性樹脂、熱硬化性樹脂のいずれでであっても構わない。ただ、キャビティ面2Aと転写シート12との間に形成されたキャビティVに注入される媒体30は、転写シート12を被加飾体20の表面に押し付けるためだけに用いられる。よって、本発明では、使用済みの媒体30はそのまま廃棄するのではなく、再利用する。そのためには、溶融樹脂としては例えば熱可塑性樹脂を用いる。媒体30が熱可塑性樹脂であると、転写シート12を被加飾体20の表面に押し付ける際に高温の状態で注入され、その後低温となって固化したとしても再び熱を加えることで軟化するため、再利用が容易である。熱可塑性樹脂としては、例えば、PC/ABS、PE、ABS、PS、SAN、EVA、PVC、PMMA、PA、POM、PBT等が挙げられる。 [Medium]
The medium 30 to be injected is a liquid having viscosity, a molten resin having fluidity, or the like. The molten resin may be either a thermoplastic resin or a thermosetting resin. However, the medium 30 injected into the cavity V formed between the
[樹脂成形の処理手順]
図1に示すように、図外のマニピュレータ等を用いて被加飾体20を第1型1の載置部1Aに配置し、第2型2と第1型1に配置された被加飾体20との間に転写シート12を配置する。このとき、第1型1の載置部1Aに配置された被加飾体20は、第1型1に設けられた吸引部13により吸引されて保持される。 [Resin molding process]
As shown in FIG. 1, the object to be decorated 20 is arranged on theplacement portion 1 </ b> A of the first mold 1 using a manipulator or the like not shown, and the decoration to be decorated is arranged on the second mold 2 and the first mold 1. The transfer sheet 12 is placed between the body 20. At this time, the object to be decorated 20 disposed on the placement unit 1 </ b> A of the first mold 1 is sucked and held by the suction unit 13 provided in the first mold 1.
図1に示すように、図外のマニピュレータ等を用いて被加飾体20を第1型1の載置部1Aに配置し、第2型2と第1型1に配置された被加飾体20との間に転写シート12を配置する。このとき、第1型1の載置部1Aに配置された被加飾体20は、第1型1に設けられた吸引部13により吸引されて保持される。 [Resin molding process]
As shown in FIG. 1, the object to be decorated 20 is arranged on the
次に、第1クランプ4及び第2クランプ5により転写シート12を挟持し、必要に応じてヒータで転写シート12を加熱した後、図2に示すように、第1クランプ4及び第2クランプ5を第1型の型面1aの方向に移動して、転写シート12を被加飾体20の表面に沿わせる。このとき、転写シート12は、第1型1に設けられた吸引部13により吸引されて保持される。
Next, after the transfer sheet 12 is sandwiched between the first clamp 4 and the second clamp 5 and the transfer sheet 12 is heated with a heater as necessary, as shown in FIG. 2, the first clamp 4 and the second clamp 5 are used. Is moved in the direction of the mold surface 1 a of the first mold, and the transfer sheet 12 is made to follow the surface of the object to be decorated 20. At this time, the transfer sheet 12 is sucked and held by the suction unit 13 provided in the first mold 1.
図3に示すように、第1型1と第2型2との型締めが完了すると、第2型2のキャビティ面2Aと被加飾体20の表面に配置された転写シート12との間にキャビティVが形成される。
As shown in FIG. 3, when the clamping of the first mold 1 and the second mold 2 is completed, the space between the cavity surface 2A of the second mold 2 and the transfer sheet 12 disposed on the surface of the object to be decorated 20 A cavity V is formed in
次に、図4に示すように、形成されたキャビティVに第2型2に備えられゲート11から溶融樹脂30を注入する。このとき、キャビティVに注入された溶融樹脂30によって転写シート12が被加飾体20の表面に向けて押圧され、その結果、被加飾体20の表面に転写シート12が確実に接着されることとなる。ここで、キャビティVに注入される溶融樹脂30が高温である場合には、溶融樹脂30が転写シート12を加熱し、被加飾体20の表面をさらに加熱することとなり、被加飾体20の表面への転写シート12の転写層12aの転写がより確実に行われる。ここで、射出される溶融樹脂の温度は、例えば280℃以上になるよう設定されており、第1型1及び第2型は例えば80℃以上になるよう設定されている。
Next, as shown in FIG. 4, molten resin 30 is injected from the gate 11 provided in the second mold 2 into the formed cavity V. At this time, the transfer sheet 12 is pressed toward the surface of the object to be decorated 20 by the molten resin 30 injected into the cavity V, and as a result, the transfer sheet 12 is securely bonded to the surface of the object to be decorated 20. It will be. Here, when the molten resin 30 injected into the cavity V has a high temperature, the molten resin 30 heats the transfer sheet 12 and further heats the surface of the object to be decorated 20. The transfer layer 12a of the transfer sheet 12 is more reliably transferred to the surface. Here, the temperature of the injected molten resin is set to be 280 ° C. or higher, for example, and the first mold 1 and the second mold are set to be 80 ° C. or higher, for example.
図5に示すように、溶融樹脂30が硬化した後、第2型を第1型から離間して型締めを開放し、転写フィルム12を第1クランプ4及び第2クランプ5で挟持した状態のまま被加飾体20の表面から離間する。その後、図6に示すように、第1型1に設けられた押し出し棒(図示せず)により転写加飾品Pを押し出して取り出すとともに、第2型2に設けられた押し出し棒(図示せず)により硬化した溶融樹脂30を押し出し、転写シート12の送りを再開する。
As shown in FIG. 5, after the molten resin 30 is cured, the second mold is separated from the first mold, the mold clamping is released, and the transfer film 12 is sandwiched between the first clamp 4 and the second clamp 5. It leaves | separates from the surface of the to-be-decorated body 20 as it is. Thereafter, as shown in FIG. 6, the transfer decorative article P is extruded and taken out by an extrusion bar (not shown) provided in the first mold 1, and an extrusion bar (not shown) provided in the second mold 2. The molten resin 30 cured by the above is extruded, and the transfer sheet 12 is restarted.
得られた転写加飾品Pは、被加飾体20の表面が転写層12aにより確実に加飾される。こうして、本発明に係る製造方法及び転写加飾装置により、被加飾体20の表面の加飾を行うことができる。また、溶融樹脂30として熱可塑性樹脂を用いた場合には、硬化した樹脂に熱を加えて溶融樹脂に戻す等の別処理を行い、キャビティVに注入する媒体として再利用する。
In the obtained transfer decorative article P, the surface of the object to be decorated 20 is reliably decorated by the transfer layer 12a. Thus, the surface of the object to be decorated 20 can be decorated by the manufacturing method and the transfer decoration device according to the present invention. When a thermoplastic resin is used as the molten resin 30, another treatment such as heating the cured resin back to the molten resin is performed, and the resin is reused as a medium to be injected into the cavity V.
〔第2実施形態〕
この実施形態では、第1実施形態の構成と異なる構成についてのみ説明し、同じ構成については説明を省略する。本実施形態では、キャビティVに媒体30を注入した状態で、媒体30の圧力を高める加圧機構が設けられている。図7(a)は溶融樹脂が注入された直後の状態を示し、図7(b)は注入された溶融樹脂が圧縮された状態を示す。 [Second Embodiment]
In this embodiment, only a configuration different from the configuration of the first embodiment will be described, and the description of the same configuration will be omitted. In the present embodiment, a pressurizing mechanism for increasing the pressure of the medium 30 in a state where the medium 30 is injected into the cavity V is provided. FIG. 7A shows a state immediately after the molten resin is injected, and FIG. 7B shows a state where the injected molten resin is compressed.
この実施形態では、第1実施形態の構成と異なる構成についてのみ説明し、同じ構成については説明を省略する。本実施形態では、キャビティVに媒体30を注入した状態で、媒体30の圧力を高める加圧機構が設けられている。図7(a)は溶融樹脂が注入された直後の状態を示し、図7(b)は注入された溶融樹脂が圧縮された状態を示す。 [Second Embodiment]
In this embodiment, only a configuration different from the configuration of the first embodiment will be described, and the description of the same configuration will be omitted. In the present embodiment, a pressurizing mechanism for increasing the pressure of the medium 30 in a state where the medium 30 is injected into the cavity V is provided. FIG. 7A shows a state immediately after the molten resin is injected, and FIG. 7B shows a state where the injected molten resin is compressed.
図7(a)、図7(b)に示すように、キャビティV内の媒体30の圧力を高める加圧機構として、第2型2のキャビティ面の内部にスライド型3が備えられている。スライド型3は、第2型2に対して型締め方向に相対移動可能であり、スライド型3と第2型2との間には、スライド型3を第1型1から離間する方向に付勢する弾性部材3aが設けられている。型締め後において溶融樹脂30が射出される際には、スライド型3は第2型2のキャビティ面から後退した位置に保持され(図7(a))、溶融樹脂30の射出が完了した後に、スライド型3を弾性部材3aに抗して第1型1に向けて前進させる(図7(b))。その結果、キャビティVの領域は小さくなり、注入された溶融樹脂30が圧縮され、転写シート12の被加飾体20の表面全体への押圧力が増すこととなり、被加飾体20への転写層による転写がより確実に行われる。
7A and 7B, a slide mold 3 is provided inside the cavity surface of the second mold 2 as a pressurizing mechanism for increasing the pressure of the medium 30 in the cavity V. The slide mold 3 can be moved relative to the second mold 2 in the mold clamping direction, and the slide mold 3 is attached in a direction away from the first mold 1 between the slide mold 3 and the second mold 2. An elastic member 3a is provided. When the molten resin 30 is injected after clamping, the slide mold 3 is held at a position retracted from the cavity surface of the second mold 2 (FIG. 7A), and after the injection of the molten resin 30 is completed. The slide mold 3 is advanced toward the first mold 1 against the elastic member 3a (FIG. 7B). As a result, the area of the cavity V is reduced, the injected molten resin 30 is compressed, and the pressing force of the transfer sheet 12 to the entire surface of the object to be decorated 20 is increased, so that the transfer to the object to be decorated 20 is performed. The transfer by the layer is more reliably performed.
〔別実施形態〕
(1)上記の実施形態では、被加飾体20は、その周縁部が第1型の型面1aに当接した状態で第1型1の載置部1Aに載置された例を示したが、図8に示すように、第1型1に形成された載置部1Aが、載置部1Aに被加飾体20が載置された状態で、被加飾体20の周縁部20bが第1型1の型面1aから離間するよう高さ設定されていてもよい。こうして、被加飾体の周縁部20bが第1型1の型面1aから離間していると、転写シート12は被加飾体20の周縁部20bからその内方に回り込むことが可能となり、被加飾体20の転写領域が拡がることとなる。なお、転写シート12及び溶融樹脂30が被加飾体20の周縁部20bからその内方に回り込んでいると、型開きの際に、被加飾体20の表面から溶融樹脂30及び転写シート12がスムーズに離間しない場合が発生する。このような場合には、溶融樹脂30をゴム、ウレタン系の柔らかい樹脂で構成し、転写シート12は枚葉にする。あるいは、アンダーカットをはずす機構を金型に組み込む。 [Another embodiment]
(1) In said embodiment, the to-be-decorated body 20 shows the example mounted in the mounting part 1A of the 1st type | mold 1 in the state which the peripheral part contact | abutted to the type | mold surface 1a of the 1st type | mold. However, as shown in FIG. 8, the mounting portion 1 </ b> A formed on the first mold 1 is in a state where the decorated body 20 is placed on the placing portion 1 </ b> A, and the peripheral portion of the decorated body 20. The height 20b may be set so as to be separated from the mold surface 1a of the first mold 1. Thus, when the peripheral edge 20b of the object to be decorated is separated from the mold surface 1a of the first mold 1, the transfer sheet 12 can go inward from the peripheral edge 20b of the object to be decorated 20, The transfer area of the object to be decorated 20 is expanded. In addition, when the transfer sheet 12 and the molten resin 30 wrap around inward from the peripheral edge 20b of the object to be decorated 20, the molten resin 30 and the transfer sheet from the surface of the object to be decorated 20 when the mold is opened. There are cases where 12 does not move away smoothly. In such a case, the molten resin 30 is made of a soft resin such as rubber or urethane, and the transfer sheet 12 is a sheet. Alternatively, a mechanism for removing the undercut is incorporated in the mold.
(1)上記の実施形態では、被加飾体20は、その周縁部が第1型の型面1aに当接した状態で第1型1の載置部1Aに載置された例を示したが、図8に示すように、第1型1に形成された載置部1Aが、載置部1Aに被加飾体20が載置された状態で、被加飾体20の周縁部20bが第1型1の型面1aから離間するよう高さ設定されていてもよい。こうして、被加飾体の周縁部20bが第1型1の型面1aから離間していると、転写シート12は被加飾体20の周縁部20bからその内方に回り込むことが可能となり、被加飾体20の転写領域が拡がることとなる。なお、転写シート12及び溶融樹脂30が被加飾体20の周縁部20bからその内方に回り込んでいると、型開きの際に、被加飾体20の表面から溶融樹脂30及び転写シート12がスムーズに離間しない場合が発生する。このような場合には、溶融樹脂30をゴム、ウレタン系の柔らかい樹脂で構成し、転写シート12は枚葉にする。あるいは、アンダーカットをはずす機構を金型に組み込む。 [Another embodiment]
(1) In said embodiment, the to-
(2)図8に示すように、第1型1の型面1aに、転写シート12から転写層が転写されるのを防止する付着防止コーティング14が施されていてもよい。このように、型面1aに付着防止コーティング14が施されていると、型面1aへの転写層12aの転写を確実に防止することができる。付着防止コーティング14としては、型面1aにシリコンやフッ素加工を施したり、表面凹凸処理(ブラスト・エッチング)をしたり、これら両者を併用して行う。
(2) As shown in FIG. 8, an adhesion preventing coating 14 for preventing the transfer layer from being transferred from the transfer sheet 12 may be applied to the mold surface 1 a of the first mold 1. Thus, when the adhesion preventing coating 14 is applied to the mold surface 1a, the transfer of the transfer layer 12a to the mold surface 1a can be reliably prevented. As the anti-adhesion coating 14, silicon or fluorine is applied to the mold surface 1a, surface unevenness treatment (blasting / etching) is performed, or both of them are used in combination.
(3)第1クランプ4及び第2クランプ5の転写シート12を保持する面にテフロン(登録商標)やコーティング済みリング等の摩擦を低減する部材を配置してもよい。こうすると、型締め前に被加飾体20の凸状部20aに転写シート12を押し付ける際に、転写シート12の移動が許容され、転写シート12を無理に引き伸ばすことなく、被加飾体20の凸状部20aに沿わせることが可能となる。
(3) A member for reducing friction such as Teflon (registered trademark) or a coated ring may be disposed on the surface of the first clamp 4 and the second clamp 5 that holds the transfer sheet 12. In this way, when the transfer sheet 12 is pressed against the convex portion 20a of the object to be decorated 20 before mold clamping, the transfer sheet 12 is allowed to move, and the object to be decorated 20 is not stretched forcibly. It is possible to follow the convex portion 20a.
(4)上記の実施形態では、被加飾体20の表面に凹凸は形成されていないが、図8に示すように、被加飾体20は例えば貫通部20c等を備えて表面に凹凸が形成されていてもよい。この場合であっても、溶融樹脂(媒体)30が転写シート12を貫通部20cに密着するように押し付けて被加飾体20に転写層12aを確実に転写することとなる。
(4) In said embodiment, although the unevenness | corrugation is not formed in the surface of the to-be-decorated body 20, as shown in FIG. 8, the to-be-decorated body 20 is equipped with the penetration part 20c etc., and an unevenness | corrugation is on the surface. It may be formed. Even in this case, the molten resin (medium) 30 presses the transfer sheet 12 so as to be in close contact with the penetrating portion 20c, and the transfer layer 12a is reliably transferred to the object to be decorated 20.
(5)上記の実施形態では、被加飾体20の表面に転写層12aによる加飾のみを施したが、第1型1にも樹脂を射出するゲートを設け、被加飾体20の表面に転写層12aによる加飾と同時に被加飾体20の裏面に樹脂部を成形するようにしてもよい。また、第1型1に金型の温度を調整する温度調整機構を設けて、被加飾体20の温度を調整するようにしてもよい。こうすると、被加飾体20が例えば金属体である場合には、温度調整機構によって加熱された被加飾体20の表面に対し、転写シートの転写層は転写し易くなる。
(5) In the above embodiment, the surface of the object to be decorated 20 is only decorated with the transfer layer 12a. However, the first mold 1 is also provided with a gate for injecting resin, and the surface of the object to be decorated 20 is decorated. In addition, the resin portion may be formed on the back surface of the object to be decorated 20 simultaneously with the decoration by the transfer layer 12a. In addition, a temperature adjusting mechanism that adjusts the temperature of the mold may be provided in the first mold 1 to adjust the temperature of the object to be decorated 20. If it carries out like this, when the to-be-decorated body 20 is a metal body, it becomes easy to transfer the transfer layer of a transfer sheet with respect to the surface of the to-be-decorated body 20 heated by the temperature control mechanism.
(6)上記の実施形態では、転写加飾装置を垂直方向(縦向き)に配置したが、水平方向(横向き)に配置してもよい。
(6) In the above embodiment, the transfer decoration device is arranged in the vertical direction (vertical direction), but may be arranged in the horizontal direction (lateral direction).
(7)上記の実施形態では、転写層12aを有する転写シート12を用いる例を示したが、これに代えて、被加飾体20の表面に対し、無地の基体シートまたは基体シート上に模様等が付されたインサートシートをそのまま一体にして加飾する構成にしてもよい。また、上記の実施形態では、転写シート12をロール状の長尺フィルムにして被加飾体20の表面に対向する位置に展開配置する例を示したが、被加飾体20の外形に合わせてカッティングしたものを配置してもよいし、被加飾体20より大きい任意の形状(例えば、長方形の枝葉シート)でもよい。
(7) In the above embodiment, an example in which the transfer sheet 12 having the transfer layer 12a is used has been described. However, instead of this, a pattern is formed on the plain base sheet or the base sheet with respect to the surface of the object to be decorated 20 You may make it the structure which decorates integrally the insert sheet | seat attached | subjected etc. as it is. Moreover, in said embodiment, although the example which expand | deploys and arrange | positions the transfer sheet 12 in the position facing the surface of the to-be-decorated body 20 made the roll-shaped long film was shown, it matches with the external shape of the to-be-decorated body 20. What was cut in this way may be arranged, and arbitrary shapes larger than the to-be-decorated object 20 (for example, a rectangular branch leaf sheet) may be sufficient.
本発明の各実施形態による転写加飾品の製造方法では、被加飾体20の表面に転写シート12を密着させ、転写層12aを転写させるにあたって、溶融樹脂30による加圧及び加熱を用いている。加圧は転写シート12への直接的な加圧であり、加熱は、転写シート12への直接的な加熱及び被加飾体20への加熱である。溶融樹脂30といった流体により転写シート12を被加飾体20の表面に密着させているため、被加飾体20の表面がなめらかな場合はもとより、エンボスやシボといった微細な凹凸形状の場合であっても、その凹凸形状に溶融樹脂30が流れ込み、転写シート12が凹凸形状に精度よく密着し、凹凸形状に精度よく転写層12aを転写させることができる。あるいは、大きな凹凸形状であっても、その凹凸形状の隅部にまで精度よく転写層12aを転写させることができる。また、溶融樹脂30の流入地点から徐々に拡大する、溶融樹脂30の流れによる連続的な加圧であるため、転写シート12を密着させる過程での、転写シート12と被加飾体20との間に空気溜まりを作ってしまう、いわゆるエアかみの発生も効果的に防止することができる。
In the method for manufacturing a transfer decorative article according to each embodiment of the present invention, the transfer sheet 12 is brought into close contact with the surface of the object to be decorated 20 and the transfer layer 12a is transferred using pressure and heating by the molten resin 30. . The pressurization is a direct pressurization to the transfer sheet 12, and the heating is a direct heating to the transfer sheet 12 and a heating to the object to be decorated 20. Since the transfer sheet 12 is brought into close contact with the surface of the object to be decorated 20 by a fluid such as a molten resin 30, not only the surface of the object to be decorated 20 is smooth but also the case of a fine uneven shape such as embossing or embossing. However, the molten resin 30 flows into the concavo-convex shape, the transfer sheet 12 adheres to the concavo-convex shape with high accuracy, and the transfer layer 12a can be transferred to the concavo-convex shape with high accuracy. Or even if it is a large uneven | corrugated shape, the transfer layer 12a can be accurately transferred to the corner of the uneven shape. Moreover, since it is the continuous pressurization by the flow of the molten resin 30 that gradually expands from the inflow point of the molten resin 30, the transfer sheet 12 and the object to be decorated 20 in the process of closely contacting the transfer sheet 12 It is also possible to effectively prevent the occurrence of so-called air pockets that create air pockets between them.
また、本発明の各実施形態による転写加飾品の製造方法では、基体シート12bに寸法安定性のよい、印刷乾燥により変形しにくい材料を選択することができるため、図柄の位置や大きさの印刷精度の高い転写シート12を用いて、転写を行うことができる。そのため、結果として、図柄の位置や大きさと被加飾体20の凹凸形状との位置精度の高い転写加飾品Pを製造することができる。
Further, in the method for producing a transfer decorative article according to each embodiment of the present invention, a material having good dimensional stability and hardly deformed by printing and drying can be selected for the base sheet 12b. Transfer can be performed using the transfer sheet 12 with high accuracy. Therefore, as a result, it is possible to manufacture a transfer decorative product P with high positional accuracy between the position and size of the symbol and the uneven shape of the object to be decorated 20.
この発明において、被加飾体20が、図9に示した、金属部80と成形樹脂部81とが連続する表面を有する複合品であってもよい。図9の(1)及び(2)を参照して、複合品は、中央が大きく開口した平面視矩形形状の金属部80と、その開口83を充填するようにして金属部80の裏面全体に一体化された成形樹脂部81とから構成されている。複合品は、周縁が少し下方に立ち上がる形状をしている。金属部80が複合品の表面の一部を構成し、成形樹脂部81の表面が複合品の他部を構成し、金属部80の表面と成形樹脂部81の表面とはなめらかに接続している。転写加飾品の例として、開口83を液晶表示部とした携帯電話やスマートフォンの正面側筐体が挙げられる。この場合、成形樹脂部に透明な樹脂が使用される。図示していないが、転写加飾品では、成形樹脂部81を利用して、転写加飾品の裏面に背面側筐体との嵌合用のボスやリブを形成することができる。この場合、別工程でリブ等を取り付ける必要がなくなり、更に、リブ等が一体成形されているため、筐体全体の厚みを薄くすることもできる。図9の(3)を参照して、転写加飾品は、金属部80の表面と成形樹脂部81の表面とを覆うように形成された転写層12aを備えている。転写層12aは、例えば、光硬化性樹脂や熱硬化性樹脂からなる、表面強度を向上させる透明なハードコート層が挙げられる。転写層12aは、単層であっても、複数の層が積層されたものであってもよく、複合品の形状に合わせて、部分的に図柄を形成してもよい。
金属部80は、例えば、凸状部20aを有するアルミニウム等の金属プレス板がある。金属部80は、金属板と同様に表面加飾することができるものであれば、樹脂成形体、ガラス等でもよい。金属部80の表面には、何ら前処理はなされないか、アルマイト処理(金属部80がアルミニウムの場合)、フレーム処理、プラズマ処理等の表面処理がなされているか、転写層12aが形成され易いように予め接着剤の塗付等の表面処理がなされているか、転写層12aが接着し易いシートが予め貼り付けられる。金属部80の表面処理や表面の被覆材は、金属部80と表面に形成される転写層12aの各組合せに応じて適合する材質を選択する必要がある。成形樹脂部81も、転写層12aが固着しやすくなるように、表面処理や接着シートや接着層等による表面被覆がなされてもよい。
成形樹脂部81の構成材料としては、例えば、ポリスチレン系樹脂、ポリオレフィン系樹脂、ABS樹脂、ABS樹脂、AS樹脂、AN樹脂などの汎用樹脂を挙げることができる。又、ポリカーボネート系樹脂、アクリル系樹脂などの汎用エンジニアリング樹脂やポリイミド樹脂、液晶ポリエステル樹脂などのスーパーエンジニアリング樹脂を使用することもできる。更に、ガラス繊維や無機フィラーなどの補強材を添加した複合樹脂も使用することができる。
尚、被加飾体20が複合品の場合は、図1から図8に示した被加飾体20を、図9に示した複合品を簡略化して記載したものとして考える。 In this invention, the to-be-decorated body 20 may be a composite product having a surface in which the metal part 80 and the molded resin part 81 are continuous as shown in FIG. Referring to (1) and (2) of FIG. 9, the composite article has a rectangular metal part 80 in plan view with a large opening at the center, and the entire back surface of the metal part 80 so as to fill the opening 83. The molded resin portion 81 is integrated. The composite product has a shape in which the periphery rises slightly downward. The metal part 80 constitutes a part of the surface of the composite product, the surface of the molded resin part 81 constitutes the other part of the composite product, and the surface of the metal part 80 and the surface of the molded resin part 81 are smoothly connected. Yes. As an example of the transfer decoration, a front side housing of a mobile phone or a smartphone having the opening 83 as a liquid crystal display unit can be given. In this case, a transparent resin is used for the molded resin portion. Although not shown, in the transfer decorative product, a boss or a rib for fitting with the back side housing can be formed on the back surface of the transfer decorative product using the molded resin portion 81. In this case, it is not necessary to attach ribs or the like in a separate process, and furthermore, since the ribs and the like are integrally formed, the thickness of the entire housing can be reduced. With reference to (3) of FIG. 9, the transfer decorative article includes a transfer layer 12a formed so as to cover the surface of the metal portion 80 and the surface of the molded resin portion 81. Examples of the transfer layer 12a include a transparent hard coat layer made of a photocurable resin or a thermosetting resin and improving the surface strength. The transfer layer 12a may be a single layer or a laminate of a plurality of layers, and a pattern may be partially formed in accordance with the shape of the composite product.
Themetal part 80 is, for example, a metal press plate such as aluminum having a convex part 20a. The metal part 80 may be a resin molded body, glass, or the like as long as it can be surface-decorated similarly to the metal plate. The surface of the metal portion 80 is not subjected to any pretreatment, is subjected to surface treatment such as anodizing (when the metal portion 80 is aluminum), flame treatment, plasma treatment, or the like, so that the transfer layer 12a is easily formed. In addition, a surface treatment such as application of an adhesive is performed in advance, or a sheet to which the transfer layer 12a is easily adhered is pasted in advance. For the surface treatment of the metal part 80 and the surface covering material, it is necessary to select a suitable material according to each combination of the metal part 80 and the transfer layer 12a formed on the surface. The molded resin portion 81 may also be subjected to surface treatment or surface coating with an adhesive sheet, an adhesive layer, or the like so that the transfer layer 12a is easily fixed.
Examples of the constituent material of the moldedresin portion 81 include general-purpose resins such as polystyrene resin, polyolefin resin, ABS resin, ABS resin, AS resin, and AN resin. Also, general engineering resins such as polycarbonate resins and acrylic resins, and super engineering resins such as polyimide resins and liquid crystal polyester resins can be used. Furthermore, composite resins to which reinforcing materials such as glass fibers and inorganic fillers are added can also be used.
In addition, when the to-be-decorated body 20 is a composite article, the to-be-decorated body 20 shown in FIGS. 1-8 is considered as what simplified and described the composite article shown in FIG.
金属部80は、例えば、凸状部20aを有するアルミニウム等の金属プレス板がある。金属部80は、金属板と同様に表面加飾することができるものであれば、樹脂成形体、ガラス等でもよい。金属部80の表面には、何ら前処理はなされないか、アルマイト処理(金属部80がアルミニウムの場合)、フレーム処理、プラズマ処理等の表面処理がなされているか、転写層12aが形成され易いように予め接着剤の塗付等の表面処理がなされているか、転写層12aが接着し易いシートが予め貼り付けられる。金属部80の表面処理や表面の被覆材は、金属部80と表面に形成される転写層12aの各組合せに応じて適合する材質を選択する必要がある。成形樹脂部81も、転写層12aが固着しやすくなるように、表面処理や接着シートや接着層等による表面被覆がなされてもよい。
成形樹脂部81の構成材料としては、例えば、ポリスチレン系樹脂、ポリオレフィン系樹脂、ABS樹脂、ABS樹脂、AS樹脂、AN樹脂などの汎用樹脂を挙げることができる。又、ポリカーボネート系樹脂、アクリル系樹脂などの汎用エンジニアリング樹脂やポリイミド樹脂、液晶ポリエステル樹脂などのスーパーエンジニアリング樹脂を使用することもできる。更に、ガラス繊維や無機フィラーなどの補強材を添加した複合樹脂も使用することができる。
尚、被加飾体20が複合品の場合は、図1から図8に示した被加飾体20を、図9に示した複合品を簡略化して記載したものとして考える。 In this invention, the to-
The
Examples of the constituent material of the molded
In addition, when the to-
被加飾体20が複合品の場合、この発明は、表面の一部を構成する金属部80と表面の他部を構成する成形樹脂部81とが一体化された複合品の表面が加飾された転写加飾品の製造方法であって、第1型1に前記複合品を配置する工程と、転写層を有する転写シート12を、金属部80の表面と成形樹脂部81の表面との境界82を跨ぐように対向する位置に配置する工程と、第1型1と第2型2とを型締めして、第2型2と前記転写シート12との間にキャビティを形成する工程と、キャビティに媒体30を射出して、その媒体30の圧力で転写シート12を複合品に押し付けるとともに、その媒体30で転写シート12を加熱して複合品の表面に転写層を固着させる工程とを備えている。尚、上記の複合品20を配置する工程の前に、複合品20を準備する工程がある。例えば、特願2009-272836の図7で示した製造方法から加飾シートSを取り除いた形態により製造される。詳しくは、金型内に金属部80を配置する工程と、型締めしてキャビティに溶融樹脂を射出する工程と、保圧・冷却して金属部80と成形樹脂部81とを一体化させる工程と、型開きして複合品20を取り出す工程とを備えている。金属部80は、金型内に配置する前に予め所定の立体形状に形成されていても、射出成形時に所定の立体形状に変形するように構成されてもよい。
又、この発明は、表面の一部を構成する金属部80と表面の他部を構成する成形樹脂部81とが一体化された複合品の表面が加飾された転写加飾品を製造する転写加飾装置であって、転写層を有する転写シート12が表面に配置された複合品が、複合品の裏面が接触するように載置される載置部が形成された第1型1と、第1型1との型締めにより、転写シート12の表面との間にキャビティが形成される第2型2と、転写シート12を複合品に押圧する媒体30をキャビティに注入する媒体注入機構とを備えている。
更に、この発明は、転写加飾品であって、表面の一部を構成する金属部80と表面の他部を構成する成形樹脂部81とが一体化され、その表面に凹部又は凸部が形成された複合品と、上記の製造方法を用いて、凹部又は凸部に転写された転写層とを備えている。 In the case where the object to be decorated 20 is a composite product, the present invention decorates the surface of the composite product in which themetal part 80 constituting a part of the surface and the molded resin part 81 constituting the other part of the surface are integrated. A method for producing a transferred decorative article, wherein the step of disposing the composite product on the first mold 1 and the transfer sheet 12 having a transfer layer are arranged between the surface of the metal portion 80 and the surface of the molded resin portion 81. A step of disposing the first mold 1 and the second mold 2 to form a cavity between the second mold 2 and the transfer sheet 12; A step of injecting the medium 30 into the cavity, pressing the transfer sheet 12 against the composite article with the pressure of the medium 30, and heating the transfer sheet 12 with the medium 30 to fix the transfer layer to the surface of the composite article. ing. In addition, there is a step of preparing the composite product 20 before the step of arranging the composite product 20 described above. For example, the decorative sheet S is manufactured from the manufacturing method shown in FIG. 7 of Japanese Patent Application No. 2009-272836. Specifically, the step of placing the metal part 80 in the mold, the step of clamping the mold and injecting the molten resin into the cavity, and the step of integrating the metal part 80 and the molded resin part 81 by holding and cooling. And a step of opening the mold and taking out the composite product 20. The metal portion 80 may be formed in a predetermined three-dimensional shape before being placed in the mold, or may be configured to be deformed into a predetermined three-dimensional shape at the time of injection molding.
The present invention also provides a transfer for producing a transfer decorative product in which the surface of a composite product in which ametal part 80 constituting a part of the surface and a molded resin part 81 constituting another part of the surface are integrated is decorated. A first mold 1 that is a decoration device, in which a composite article in which a transfer sheet 12 having a transfer layer is arranged on the surface is provided with a placement portion on which the back surface of the composite article comes in contact; A second mold 2 in which a cavity is formed between the first mold 1 and the surface of the transfer sheet 12, and a medium injection mechanism for injecting a medium 30 for pressing the transfer sheet 12 against the composite product into the cavity; It has.
Further, the present invention is a transfer decorative article, in which ametal part 80 constituting a part of the surface and a molded resin part 81 constituting another part of the surface are integrated, and a concave or convex part is formed on the surface. And the transfer layer transferred to the concave portion or the convex portion using the above-described manufacturing method.
又、この発明は、表面の一部を構成する金属部80と表面の他部を構成する成形樹脂部81とが一体化された複合品の表面が加飾された転写加飾品を製造する転写加飾装置であって、転写層を有する転写シート12が表面に配置された複合品が、複合品の裏面が接触するように載置される載置部が形成された第1型1と、第1型1との型締めにより、転写シート12の表面との間にキャビティが形成される第2型2と、転写シート12を複合品に押圧する媒体30をキャビティに注入する媒体注入機構とを備えている。
更に、この発明は、転写加飾品であって、表面の一部を構成する金属部80と表面の他部を構成する成形樹脂部81とが一体化され、その表面に凹部又は凸部が形成された複合品と、上記の製造方法を用いて、凹部又は凸部に転写された転写層とを備えている。 In the case where the object to be decorated 20 is a composite product, the present invention decorates the surface of the composite product in which the
The present invention also provides a transfer for producing a transfer decorative product in which the surface of a composite product in which a
Further, the present invention is a transfer decorative article, in which a
このように構成すると、転写シート12を複合品の表面に対向する位置に配置した後、第2型2と転写シート12との間に形成されたキャビティに媒体30を注入し、媒体30により転写シート12を複合品に押し付けるので、複合品の表面が絞りの深い形状等の立体形状であったとしても、転写シート12と複合品との間にエア溜まりが発生し難く、転写シート12と複合品との密着性が向上し、複合品に確実に転写層が転写される。金属部80と成形樹脂部81との境界82にも確実に転写される。この発明では、媒体30の圧力と熱を利用して転写シートを複合品の表面に密着させるため、加飾時の転写シート12のシワを防止して、複合品の表面を簡易かつ確実に転写層により加飾することができる。複合品の表面に形成された凹部又は凸部が微細であっても、媒体の熱と圧力を受けた転写層は凹部または凸部に沿って密接する。その結果、転写加飾品において、複合品の表面に形成された凹部または凸部は転写層によって確実に転写されて加飾されることとなる。
With this configuration, after the transfer sheet 12 is disposed at a position facing the surface of the composite product, the medium 30 is injected into the cavity formed between the second mold 2 and the transfer sheet 12 and transferred by the medium 30. Since the sheet 12 is pressed against the composite product, even if the surface of the composite product has a three-dimensional shape such as a shape with a deep aperture, it is difficult for air to accumulate between the transfer sheet 12 and the composite product. Adhesion with the product is improved, and the transfer layer is reliably transferred to the composite product. It is also reliably transferred to the boundary 82 between the metal part 80 and the molded resin part 81. In this invention, since the transfer sheet is brought into close contact with the surface of the composite product using the pressure and heat of the medium 30, the transfer sheet 12 is prevented from being wrinkled during decoration, and the surface of the composite product is easily and reliably transferred. It can be decorated with layers. Even if the concave portion or the convex portion formed on the surface of the composite product is fine, the transfer layer that receives the heat and pressure of the medium closely contacts the concave portion or the convex portion. As a result, in the transfer decorative product, the concave portion or the convex portion formed on the surface of the composite product is reliably transferred and decorated by the transfer layer.
本発明は、自動車、家庭用電化製品、携帯電話、パーソナルコンピュータ等、さまざまな分野において、内装品、外装品を問わず、使用される転写加飾品及び、被加飾体の表面に転写層が形成された転写加飾品の製造に広く利用可能である。
The present invention relates to a transfer decorative product used in various fields such as automobiles, household appliances, mobile phones, personal computers, etc., regardless of whether it is an interior product or an exterior product, and a transfer layer on the surface of the object to be decorated. It can be widely used for the production of formed transfer decorations.
1 第1型
2 第2型
3 スライド型
4 第1クランプ
5 第2クランプ
11 ゲート
12 転写シート(加飾シート)
13 吸引部
14 付着防止コーティング
20 被加飾体
20a 凸状部
30 媒体(溶融樹脂)
80 金属部
81 成形樹脂部
82 境界
V キャビティ
P 転写加飾品 1First mold 2 Second mold 3 Slide mold 4 First clamp 5 Second clamp 11 Gate 12 Transfer sheet (decorative sheet)
13Suction Part 14 Adhesion Prevention Coating 20 Decorated Body 20a Convex Part 30 Medium (Molten Resin)
80Metal part 81 Molded resin part 82 Boundary V Cavity P Transfer decoration
2 第2型
3 スライド型
4 第1クランプ
5 第2クランプ
11 ゲート
12 転写シート(加飾シート)
13 吸引部
14 付着防止コーティング
20 被加飾体
20a 凸状部
30 媒体(溶融樹脂)
80 金属部
81 成形樹脂部
82 境界
V キャビティ
P 転写加飾品 1
13
80
Claims (10)
- 第1型に被加飾体を配置する工程と、
転写層を有する転写シートを前記被加飾体の表面に対向する位置に配置する工程と、
前記第1型と第2型とを型締めして、前記第2型と前記転写シートとの間にキャビティを形成する工程と、
前記キャビティに媒体を射出して、当該媒体の圧力で前記転写シートを前記被加飾体に押し付けるとともに、当該媒体で前記転写シートを加熱して前記被加飾体に前記転写層を転写する工程と、を備えた転写加飾品の製造方法。 Arranging the object to be decorated in the first mold;
Arranging a transfer sheet having a transfer layer at a position facing the surface of the object to be decorated;
Clamping the first mold and the second mold to form a cavity between the second mold and the transfer sheet;
Injecting the medium into the cavity, pressing the transfer sheet against the object to be decorated with the pressure of the medium, and heating the transfer sheet with the medium to transfer the transfer layer to the object to be decorated And a method for producing a transfer decorative article. - 前記媒体が熱可塑性樹脂である請求項1記載の転写加飾品の製造方法。 The method for producing a transfer decorative article according to claim 1, wherein the medium is a thermoplastic resin.
- 型締め前において、前記転写シートと前記被加飾体とが当接するように減圧吸引する工程を備えた請求項1又は2に記載の転写加飾品の製造方法。 The method for producing a transfer decorative article according to claim 1 or 2, further comprising a step of sucking under reduced pressure so that the transfer sheet and the object to be decorated come into contact with each other before mold clamping.
- 前記転写シートを前記第1型と前記第2型との型締め方向に沿って挟持する工程を備えた請求項1~3のいずれか一項に記載の転写加飾品の製造方法。 The method for producing a transfer decorative article according to any one of claims 1 to 3, further comprising a step of sandwiching the transfer sheet along a clamping direction between the first mold and the second mold.
- 内部にキャビティを形成しつつ互いに型締め可能な第1型及び第2型と、
転写層を有する転写シートと当接させた状態で被加飾体を載置可能に、前記第1型の内面に形成された載置部と、
前記転写シートを前記被加飾体に押圧する媒体を前記キャビティに注入する媒体注入機構と、を備えた転写加飾装置。 A first mold and a second mold that can be clamped together while forming a cavity therein;
A mounting portion formed on the inner surface of the first mold so that the object to be decorated can be mounted in a state of being in contact with the transfer sheet having the transfer layer;
A transfer decoration device comprising: a medium injection mechanism for injecting a medium for pressing the transfer sheet against the object to be decorated into the cavity. - 前記転写シートを、前記第1型と前記第2型との型締め方向に沿って挟持し、前記転写シートを前記被加飾体に対して近接離間させる挟持クランプを備えた請求項5記載の転写加飾装置。 6. The clamping sheet according to claim 5, further comprising a clamping clamp that clamps the transfer sheet along a clamping direction of the first mold and the second mold and moves the transfer sheet close to and away from the object to be decorated. Transcription decoration device.
- 前記載置部に前記被加飾体を載置した状態で、前記被加飾体の周縁部が前記第1型の型面から離間するよう前記載置部の高さを設定してある請求項5又は6に記載の転写加飾装置。 The height of the said mounting part is set so that the peripheral part of the said to-be-decorated body may space apart from the type | mold surface of a said 1st type in the state which mounted the said to-be-decorated body in the said mounting part. Item 7. The transfer decoration device according to Item 5 or 6.
- 前記第1型の型面に、前記転写シートから転写層が転写されるのを防止する付着防止コーティングを施してある請求項5~7の何れか一項に記載の転写加飾装置。 The transfer decorating apparatus according to any one of claims 5 to 7, wherein an anti-adhesion coating for preventing the transfer layer from being transferred from the transfer sheet is applied to the mold surface of the first mold.
- 前記キャビティに前記媒体を注入した状態で、前記媒体の圧力を高める加圧機構を備えている請求項5~8のいずれか一項に記載の転写加飾装置。 The transfer decoration device according to any one of claims 5 to 8, further comprising a pressurizing mechanism for increasing a pressure of the medium in a state where the medium is injected into the cavity.
- 被加飾体の表面に形成された凹部または凸部に対し、請求項1~4のいずれか一項に記載の方法を用いて転写層が転写された転写加飾品。 A transfer decorative product in which a transfer layer is transferred to the concave or convex portions formed on the surface of the object to be decorated using the method according to any one of claims 1 to 4.
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CN201180016828.0A CN102834274B (en) | 2010-08-09 | 2011-07-14 | Method for manufacturing a transfer decorating article, transfer decorating device and transfer decorating article |
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JP2010-178966 | 2010-08-09 | ||
JP2010178966A JP5410384B2 (en) | 2010-08-09 | 2010-08-09 | Method for producing transcription decoration product, transcription decoration device and transcription decoration product |
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WO2012020621A1 true WO2012020621A1 (en) | 2012-02-16 |
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PCT/JP2011/066121 WO2012020621A1 (en) | 2010-08-09 | 2011-07-14 | Method for producing transfer-decorated product, transfer-decoration device, and transfer-decorated product |
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JP (1) | JP5410384B2 (en) |
CN (1) | CN102834274B (en) |
TW (1) | TWI490128B (en) |
WO (1) | WO2012020621A1 (en) |
Cited By (1)
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CN109311195A (en) * | 2016-06-29 | 2019-02-05 | 日写株式会社 | The manufacturing method and mold of decorated molded article |
Families Citing this family (1)
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JP5784547B2 (en) | 2012-06-05 | 2015-09-24 | 株式会社東海理化電機製作所 | Transfer molded body |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04288214A (en) * | 1991-01-19 | 1992-10-13 | Dainippon Printing Co Ltd | Method and apparatus for vacuum laminate molding |
JPH0557786A (en) * | 1991-08-29 | 1993-03-09 | Dainippon Printing Co Ltd | Vacuum press laminate molding method |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002079573A (en) * | 2000-09-06 | 2002-03-19 | Fuse Shinku Kk | Vacuum forming apparatus |
TWI325813B (en) * | 2003-03-03 | 2010-06-11 | Ykk Corp | Transferring and molding method and transferring and molding apparatus |
CN100441390C (en) * | 2003-03-25 | 2008-12-10 | 日本写真印刷株式会社 | Method for producing injection-molded and in-mold decorated article and mold for injection molding with in-mold decoration |
ATE461801T1 (en) * | 2003-07-18 | 2010-04-15 | Nissha Printing | DECORATED MOLDED PRODUCT AND METHOD FOR PRODUCING THE SAME |
-
2010
- 2010-08-09 JP JP2010178966A patent/JP5410384B2/en active Active
-
2011
- 2011-07-14 WO PCT/JP2011/066121 patent/WO2012020621A1/en active Application Filing
- 2011-07-14 CN CN201180016828.0A patent/CN102834274B/en not_active Expired - Fee Related
- 2011-08-08 TW TW100128094A patent/TWI490128B/en not_active IP Right Cessation
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04288214A (en) * | 1991-01-19 | 1992-10-13 | Dainippon Printing Co Ltd | Method and apparatus for vacuum laminate molding |
JPH0557786A (en) * | 1991-08-29 | 1993-03-09 | Dainippon Printing Co Ltd | Vacuum press laminate molding method |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109311195A (en) * | 2016-06-29 | 2019-02-05 | 日写株式会社 | The manufacturing method and mold of decorated molded article |
CN109311195B (en) * | 2016-06-29 | 2020-11-24 | 日写株式会社 | Method and mold for manufacturing decorative molded article |
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Publication number | Publication date |
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JP2012035550A (en) | 2012-02-23 |
CN102834274B (en) | 2015-05-20 |
TW201217191A (en) | 2012-05-01 |
TWI490128B (en) | 2015-07-01 |
JP5410384B2 (en) | 2014-02-05 |
CN102834274A (en) | 2012-12-19 |
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