WO2021117196A1 - 立体装飾片及びその製造方法 - Google Patents

立体装飾片及びその製造方法 Download PDF

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Publication number
WO2021117196A1
WO2021117196A1 PCT/JP2019/048760 JP2019048760W WO2021117196A1 WO 2021117196 A1 WO2021117196 A1 WO 2021117196A1 JP 2019048760 W JP2019048760 W JP 2019048760W WO 2021117196 A1 WO2021117196 A1 WO 2021117196A1
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WIPO (PCT)
Prior art keywords
upper layer
core material
molded body
synthetic resin
electrode
Prior art date
Application number
PCT/JP2019/048760
Other languages
English (en)
French (fr)
Inventor
剛司 黒田
Original Assignee
剛司 黒田
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 剛司 黒田 filed Critical 剛司 黒田
Priority to JP2021563542A priority Critical patent/JP7256564B2/ja
Priority to PCT/JP2019/048760 priority patent/WO2021117196A1/ja
Priority to US17/779,376 priority patent/US20220402190A1/en
Priority to EP19955942.8A priority patent/EP4074502A4/en
Publication of WO2021117196A1 publication Critical patent/WO2021117196A1/ja

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B44DECORATIVE ARTS
    • B44CPRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
    • B44C1/00Processes, not specifically provided for elsewhere, for producing decorative surface effects
    • B44C1/24Pressing or stamping ornamental designs on surfaces
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C51/00Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
    • B29C51/08Deep drawing or matched-mould forming, i.e. using mechanical means only
    • B29C51/082Deep drawing or matched-mould forming, i.e. using mechanical means only by shaping between complementary mould parts
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C43/00Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/02Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles
    • B29C43/04Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles using movable moulds
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C43/00Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/32Component parts, details or accessories; Auxiliary operations
    • B29C43/52Heating or cooling
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C51/00Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
    • B29C51/14Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor using multilayered preforms or sheets
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C51/00Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
    • B29C51/26Component parts, details or accessories; Auxiliary operations
    • B29C51/266Auxiliary operations after the thermoforming operation
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • B29C51/00Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
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    • B29C65/02Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
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    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/48Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • B29C65/50Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding using adhesive tape, e.g. thermoplastic tape; using threads or the like
    • B29C65/5042Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding using adhesive tape, e.g. thermoplastic tape; using threads or the like covering both elements to be joined
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • B29C65/74Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • B29C65/74Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area
    • B29C65/743Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area using the same tool for both joining and severing, said tool being monobloc or formed by several parts mounted together and forming a monobloc
    • B29C65/7441Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area using the same tool for both joining and severing, said tool being monobloc or formed by several parts mounted together and forming a monobloc for making welds and cuts of other than simple rectilinear form
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/01General aspects dealing with the joint area or with the area to be joined
    • B29C66/05Particular design of joint configurations
    • B29C66/10Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112Single lapped joints
    • B29C66/1122Single lap to lap joints, i.e. overlap joints
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/01General aspects dealing with the joint area or with the area to be joined
    • B29C66/05Particular design of joint configurations
    • B29C66/20Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines
    • B29C66/24Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight
    • B29C66/246Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight said joint lines forming figures, e.g. animals, flowers, hearts
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/01General aspects dealing with the joint area or with the area to be joined
    • B29C66/05Particular design of joint configurations
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/01General aspects dealing with the joint area or with the area to be joined
    • B29C66/05Particular design of joint configurations
    • B29C66/306Applying a mark during joining
    • B29C66/3062Applying a mark during joining in the form of letters or numbers
    • B29C66/30621Applying a mark during joining in the form of letters or numbers in the form of letters
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/40General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43Joining a relatively small portion of the surface of said articles
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    • B29C66/40General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
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    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/40General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
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    • B29C66/472Joining single elements to sheets, plates or other substantially flat surfaces said single elements being substantially flat
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    • B29C66/70General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/72General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
    • B29C66/723General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered
    • B29C66/7232General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered comprising a non-plastics layer
    • B29C66/72321General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered comprising a non-plastics layer consisting of metals or their alloys
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    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/70General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
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    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • B29C66/70General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/73General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/739General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/7392General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic
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    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • B32B27/00Layered products comprising a layer of synthetic resin
    • B32B27/30Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
    • B32B27/304Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising vinyl halide (co)polymers, e.g. PVC, PVDC, PVF, PVDF
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00Layered products comprising a layer of synthetic resin
    • B32B27/40Layered products comprising a layer of synthetic resin comprising polyurethanes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B32B5/022Non-woven fabric
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04Interconnection of layers
    • B32B7/12Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B44DECORATIVE ARTS
    • B44CPRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
    • B44C1/00Processes, not specifically provided for elsewhere, for producing decorative surface effects
    • B44C1/20Applying plastic materials and superficially modelling the surface of these materials
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B44DECORATIVE ARTS
    • B44CPRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
    • B44C3/00Processes, not specifically provided for elsewhere, for producing ornamental structures
    • B44C3/08Stamping or bending
    • B44C3/082Stamping or bending comprising a cutting out operation
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C43/00Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/02Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles
    • B29C43/18Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles incorporating preformed parts or layers, e.g. compression moulding around inserts or for coating articles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/70General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/71General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29LINDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00Other particular articles
    • B29L2031/722Decorative or ornamental articles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2255/00Coating on the layer surface
    • B32B2255/10Coating on the layer surface on synthetic resin layer or on natural or synthetic rubber layer
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2255/00Coating on the layer surface
    • B32B2255/20Inorganic coating
    • B32B2255/205Metallic coating
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2255/00Coating on the layer surface
    • B32B2255/28Multiple coating on one surface
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2451/00Decorative or ornamental articles

Definitions

  • the present invention relates to a three-dimensional decorative piece to be attached to an adherend such as clothing, a bag, a hat, a car, a motorcycle, a boat, a home appliance, and a game machine, and a method for manufacturing the same, and more specifically, it is bulky. It relates to a three-dimensional decorative piece whose shape can be maintained by a core material and a method for manufacturing the same.
  • the three-dimensional decorative piece is a lower layer material obtained by subjecting a high-frequency dielectric heating to an upper layer material including a metal vapor deposition layer and a lower layer material including a thermoplastic synthetic resin sheet or a foamed resin sheet between an engraving mold and an electrode flat plate mold.
  • the upper layer material and the lower layer material are welded while softening and shaping.
  • the three-dimensional decorative piece In order to enhance the sense of quality and three-dimensionality, the three-dimensional decorative piece is required to be bulky. In order to manufacture bulky three-dimensional decorative pieces, it is necessary to make the lower layer material thicker, but as a characteristic of high-frequency dielectric heating, radio waves are concentrated on the cutting edge and the corners of the pattern, so the upper layer material and lower layer material are the whole. It was not heated specifically, and shaping and welding could not be performed well. Therefore, the thickness of the three-dimensional decorative piece that can be manufactured is limited to about 2 mm. It is also conceivable to omit the lower layer material and form only the upper layer material in a cavity to produce a bulky three-dimensional decorative piece, but since the upper layer material is a thin material, it is difficult to maintain the three-dimensional shape. , The three-dimensional decorative piece may be dented or crushed by being pressed down or hit by an object.
  • An object of the present invention is to provide a three-dimensional decorative piece made of a thermoplastic synthetic resin capable of maintaining its bulkiness and shape by a core material, and a method for producing the same.
  • the three-dimensional decorative piece of the present invention An upper layer molded body composed of an upper layer material including a metal vapor deposition layer and three-dimensionally molded into a shape having a convex portion on the surface side by high-frequency dielectric heating.
  • a core material formed by curing a synthetic resin that is filled in the convex portion of the upper-layer molded product and has fluidity. With the base material welded to the back surface side of the core material, To have.
  • thermoplastic synthetic resin film can be arranged between the core material and the base material.
  • the three-dimensional decorative piece of the present invention An upper layer molded body composed of an upper layer material including a metal vapor deposition layer and three-dimensionally molded into a shape having a convex portion on the surface side by high-frequency dielectric heating.
  • a core material formed by curing a synthetic resin that is filled in the convex portion of the upper-layer molded product and has fluidity.
  • a thermoplastic synthetic resin film welded to the back surface side of the core material, Double-sided tape attached to the back side of the thermoplastic synthetic resin film, To have.
  • the three-dimensional decorative piece of the present invention An upper layer molded body composed of an upper layer material including a metal vapor deposition layer and three-dimensionally molded into a shape having a convex portion on the surface side by high-frequency dielectric heating.
  • a base material that is welded to the back surface side of the upper layer molded product and has a concave portion on the back surface side along the convex portion of the upper layer molded product.
  • a core material formed by curing a synthetic resin having fluidity and filling the concave portion of the base material recessed along the convex portion.
  • the synthetic resin forming the core material can be one material selected from the group consisting of a thermoplastic synthetic resin sol, a thermosetting synthetic resin, and a room temperature curable two-component synthetic resin.
  • the method for producing a three-dimensional decorative piece of the present invention is A method for manufacturing a three-dimensional decorative piece having a three-dimensional pattern.
  • Molding step of the core material which molds the core material cured into a shape having a convex portion according to
  • An upper layer material including a metal vapor deposition layer is sandwiched between the electrode engraving concave mold on which the three-dimensional pattern is engraved and the electrode convex mold, and high-frequency dielectric heating is performed to form a convex portion on the surface side that matches the three-dimensional pattern.
  • the engraving concave mold is opposed to each other, and the electrode engraving concave mold is brought close to the electrode flat plate mold so that the portion of the upper layer molded body covers the convex portion of the core material, and high-frequency dielectric heating is performed.
  • An integrated step of welding the upper layer molded body, the core material and the base material, and fusing the upper layer molded body and the core material along the pattern. Have.
  • the synthetic resin is injected into the molding die, a thermoplastic synthetic resin film is covered from above, and the core is subjected to high-frequency dielectric heating while being pressed by an electrode plate mold from above.
  • the material can be molded.
  • the method for producing a three-dimensional decorative piece of the present invention is A method for manufacturing a three-dimensional decorative piece having a three-dimensional pattern.
  • the upper layer material including the metal vapor deposition layer and the base material are overlapped, and the upper layer material is sandwiched and pressed between the electrode engraving concave mold and the electrode convex mold on which the three-dimensional pattern is engraved so as to face the electrode engraving concave mold.
  • high-frequency dielectric heating is performed to weld the upper layer material and the base material, and the upper layer molded body on which the upper layer material is molded and the base material are molded into a shape having a convex portion matching the three-dimensional pattern.
  • An integration step of the upper layer molded body and the base material which forms a concave portion on the back surface of the base material side.
  • the electrode engraving concave mold is placed on the lower side, and the upper layer molded body is placed on the electrode engraving concave mold so that the base material faces upward, and then flows into the concave portion of the base material.
  • a synthetic resin material having properties is injected, and high-frequency dielectric heating is performed while pressing with an electrode flat plate mold to cure the synthetic resin material to form a core material, and the upper layer molded body is formed along the pattern. Fusing, integration step of upper layer molded body, base material and core material, Have.
  • the method for producing a three-dimensional decorative piece of the present invention is A method for manufacturing a three-dimensional decorative piece having a three-dimensional pattern.
  • a fluid synthetic resin into a core material molding mold engraved with a three-dimensional pattern, covering it with a thermoplastic synthetic resin film, and pressing it from above with an electrode flat plate mold, high-frequency dielectric heating is performed.
  • An upper layer material including a metal vapor deposition layer is sandwiched between the electrode engraving concave mold on which the three-dimensional pattern is engraved and the electrode convex mold, and high-frequency dielectric heating is performed to form a convex portion on the surface side that matches the three-dimensional pattern.
  • the electrode flat plate mold and the electrode engraving concave mold are opposed to each other so that the convex portion of the upper layer molded body covers the convex portion of the core material.
  • the electrode engraving concave mold is brought close to the electrode flat plate mold and high-frequency dielectric heating is performed to weld the upper layer molded body and the core material, and the upper layer molded body is fused along the pattern. Has a conversion step.
  • the upper layer material including the metal vapor deposition layer is formed by molding as an upper layer molded body and then filling the back surface side of the convex portion according to the three-dimensional pattern with a core material. Therefore, the shape of the convex portion of the upper layer molded body can be fixed and maintained by the core material. Since the core material can be formed by curing a synthetic resin having fluidity, the height of the convex portion of the upper layer molded body can be increased, and a bulky three-dimensional decorative piece can be produced.
  • FIG. 1 is a plan view of the three-dimensional decorative piece of the first embodiment.
  • FIG. 2 is a cross-sectional view taken along the line AA'of FIG.
  • FIG. 3 is a plan view of (a) a core material molding die according to the first embodiment, and (b) is a cross-sectional view taken along line BB'.
  • FIG. 4 is a cross-sectional view of the core material.
  • FIG. 5 is a plan view of (a) an upper electrode concave mold, and FIG. 5 (b) is a cross-sectional view taken along line CC'.
  • FIG. 6 is a plan view of (a) a convex lower electrode, and FIG. 6 (b) is a cross-sectional view taken along the line DD'.
  • FIG. 1 is a plan view of the three-dimensional decorative piece of the first embodiment.
  • FIG. 2 is a cross-sectional view taken along the line AA'of FIG.
  • FIG. 3 is a plan view of (a)
  • FIG. 7 is an explanatory view showing a step of forming an upper layer molded body.
  • FIG. 8 is an explanatory view showing a step of integrating the upper layer molded body, the core material, and the base material.
  • FIG. 9 is a cross-sectional view of the three-dimensional decorative piece of the second embodiment.
  • FIG. 10 is an explanatory view showing an integration step of the upper layer molded body and the base material according to the second embodiment.
  • FIG. 11 is an explanatory view showing an integration step of the upper layer molded body and the base material following FIG.
  • FIG. 12 is an explanatory view showing a step of filling the recessed portion of the base material with the core material and integrating the core material.
  • FIG. 13 is a cross-sectional view of the three-dimensional decorative piece of the third embodiment.
  • FIG. 14 is a plan view of (a) a core material molding die according to a third embodiment, and (b) is a cross-sectional view taken along the line EE'.
  • FIG. 15 is a cross-sectional view of the core material.
  • 16A is a plan view of the upper electrode concave mold
  • FIG. 16B is a cross-sectional view taken along the line FF'.
  • 17A and 17B are a plan view of a convex lower electrode
  • FIG. 17B is a cross-sectional view taken along the line GG'.
  • FIG. 18 is an explanatory view showing a step of forming an upper layer molded body.
  • FIG. 19 is an explanatory view showing a step of integrating the upper layer molded body, the core material, and the base material (double-sided tape).
  • the three-dimensional decorative piece 10 of the present invention and the manufacturing method thereof will be described with reference to the drawings.
  • the thickness, size, unevenness, shape, pattern, etc. of the three-dimensional decorative piece 10 and the mold shown in each figure are examples, and various patterns, etc. can be adopted. Some parts are exaggerated.
  • the three-dimensional decorative piece 10 of the present invention includes an upper layer molded body 20 constituting a three-dimensional pattern on a base material 40 made of a cloth or the like.
  • the upper-layer molded body 20 has an inwardly convex portion 23 along a three-dimensional pattern swelling in a direction away from the base material 40. It is formed.
  • a core material 30 is filled in the convex portion 23 between the upper layer molded body 20 and the base material 40.
  • the core material 30 is cured, and the shape of the three-dimensional decorative piece 10, that is, the shape of the upper layer molded body 20 is fixed and maintained, and the upper layer molded body 20 is pushed from the inside to prevent the upper layer molded body 20 from being dented or crushed. There is.
  • the upper layer molded body 20 and the core material 30, and the core material 30 and the base material 40 are integrated by, for example, welding.
  • the upper layer molded body 20 can be formed by molding a sheet-shaped upper layer material 21 made of a thermoplastic synthetic resin film and a laminated film including a metal vapor deposition layer into a three-dimensional shape.
  • the thermoplastic synthetic resin film include soft thermoplastic synthetic resins such as polyvinyl chloride and polyurethane.
  • indium can be exemplified as the metal material of the metal vapor deposition layer.
  • the metal vapor deposition layer can be provided on the upper layer material 21 by depositing the metal material on the thermoplastic synthetic resin film.
  • an adhesive layer In the upper layer material 21, an adhesive layer, a dye transfer prevention film such as an ethylene-vinyl alcohol copolymer (EVOH) film, or an adhesive layer is interposed on the lower surface of the metal vapor deposition layer, if necessary.
  • a dye transfer prevention film such as an ethylene-vinyl alcohol copolymer (EVOH) film
  • EVOH ethylene-vinyl alcohol copolymer
  • an adhesive layer is interposed on the lower surface of the metal vapor deposition layer, if necessary.
  • thermoplastic synthetic resin films it is also possible to have a structure in which thermoplastic synthetic resin films are laminated.
  • the upper surface of the upper layer material 21 can be printed with a desired pattern and a desired color by using transparent color ink, matte ink, gloss ink, or the like. Furthermore, by screen-printing UV-curable transparent UV ink or the like on top of these prints, a fine line pattern is added, giving a high-class feel, profoundness, precision, depth of color, metallic feel, such as molding embroidery. Furthermore, it is possible to express fine irregularities and the like.
  • the core material 30 can be formed by curing a fluid synthetic resin material 31.
  • the synthetic resin material 31 is formed by molding and curing the synthetic resin material 31 in advance along the three-dimensional shape of the convex portion 23 of the upper layer molded body 20 by fitting it into the convex portion 23 and integrating the upper layer molded body 31. Fix and maintain the shape of 20.
  • the synthetic resin material that can be used for the core material 30 include, but are not limited to, a thermoplastic synthetic resin sol, a thermosetting synthetic resin, and a room temperature curable two-component synthetic resin.
  • Examples of the base material 40 include cloth, woven fabric, non-woven fabric, double-sided tape, and the like.
  • the base material 40 may be a cloth on which a non-woven fabric is laminated, or a cloth on which a double-sided tape is laminated.
  • Molding of the upper layer molded body 20, molding and curing of the core material 30, and welding of the upper layer molded body 20 and the core material 30, and the core material 30 and the base material 40 can be performed by high-frequency dielectric heating.
  • high-frequency dielectric heating Of course, for these moldings and the like, compression molding, casting molding, and other known molding methods can also be adopted.
  • the heating time can be about 10 to 30 seconds, so that the high frequency is high. The adoption of dielectric heating is extremely effective.
  • the three-dimensional decorative piece 10 of the first embodiment can be manufactured by a step of molding the core material 30, a step of molding the upper layer molded body 20, and a step of integrating the upper layer molded body 20, the core material 30, and the base material 40. Each step will be described below.
  • FIG. 3 shows an embodiment of a mold for molding the core material 30
  • FIG. 3 (a) is a plan view of the core material molding mold 50
  • FIG. 3 (b) shows the core material molding mold 50 and electrodes.
  • a cross-sectional view taken along the line BB'of the flat plate mold 54 is shown.
  • the core material molding die 50 is engraved with a concave pattern 51 corresponding to the three-dimensional pattern of the three-dimensional decorative piece 10 to be formed.
  • the concave pattern 51 is a star-shaped three-dimensional pattern and a plant-shaped three-dimensional pattern surrounding the star-shaped three-dimensional pattern, and the star-shaped three-dimensional pattern and the plant-shaped three-dimensional pattern are formed apart in an island shape.
  • the core material molding mold 50 may have a registration mark 52 recessed on the outside of the concave pattern 51. desirable.
  • the core material molding die 50 and the electrode flat plate mold 54 are configured to be relatively close to each other and can be separated from each other.
  • the core material molding die 50 is arranged so that the concave pattern 51 faces upward.
  • the electrode flat plate mold 54 is configured to descend, approach, and ascend to separate.
  • the core material molding die 50 and the electrode flat plate mold 54 are respectively connected to a high-frequency dielectric oscillator, and a high-frequency voltage is applied between these molds with the core material molding mold 50 and the electrode flat plate mold 54 in close proximity to each other. By doing so, high-frequency dielectric heating of the dielectric (synthetic resin material 31 in this embodiment) arranged between the molds can be performed.
  • the synthetic resin material 31 in a fluid state for example, a thermoplastic synthetic resin sol
  • a film 33 such as a thermoplastic synthetic resin film is placed on the core material molding die 50, if necessary.
  • the concave pattern 51 is formed in an island shape separated from the core material molding mold 50, one film 33 is formed so that the core materials 30 formed apart in an island shape are not separated from each other. I try to put it on. Therefore, when the core members 30 are connected to one, the film 33 can be omitted.
  • the core material molding die 50 forms a dent in which the concave patterns 51 are connected to each other, and the synthetic resin material 31 is injected into the dent so that the core materials 30 formed in the concave pattern 51 are connected to each other. Good.
  • FIG. 4 shows the core material 30 taken out. It can be seen that the core material 30 has a form in which three-dimensional portions matching the three-dimensional shape are connected by a film 33. Further, it can be seen that the positioning protrusion 34 can be formed on the film 33 at a position corresponding to the register mark 52 of the core material molding die 50.
  • the upper layer molded body 20 can be molded before, after, or in parallel with the molding and curing of the core material 30 described above.
  • FIG. 5 to 7 are cross-sectional views of a mold forming the upper layer molded body 20.
  • the molds are an upper electrode engraving concave mold 60 (FIG. 5) arranged so as to be approachable and separable, and an electrode flat plate mold 74 (FIG. 6) on which a lower electrode convex mold 70 is placed.
  • the upper electrode engraving concave mold 60 has a concave portion 61 that matches the three-dimensional shape of the upper layer molded body 20 to be formed, as shown in FIG. 5 (a) and cross-sectional view 5 (b) along the line CC'.
  • the outer periphery of the recess 61 may be provided with a fusing blade 62 capable of cutting the upper layer molded body 20.
  • the lower electrode convex mold 70 has a convex portion 71 having a shape corresponding to the three-dimensional pattern of the upper layer molded body 20, as shown in FIG. 6 (a) and cross-sectional view 6 (b) along the line DD'. It can be used by placing it on the electrode flat plate mold 74. As the electrode flat plate mold 74, the electrode flat plate mold 54 of the core material molding die 50 may be used.
  • the upper electrode engraving concave mold 60 is connected to the high frequency dielectric oscillator, and the lower electrode convex mold 70 is connected to the high frequency dielectric oscillator via the electrode flat plate mold 74. Then, by applying a high-frequency voltage between the molds in a state where the upper electrode engraving concave mold 60 is brought close to the lower electrode convex mold 70, high-frequency dielectric heating can be performed between the molds.
  • a sheet-shaped upper layer material 21 forming the upper layer molded body 20 is sandwiched between the upper electrode engraving concave mold 60 and the lower electrode convex mold 70 in a separated state.
  • the upper layer material 21 has a three-dimensional shape that matches the three-dimensional pattern of the concave portion 61 and the convex portion 71 of the molds 60 and 70. It is molded as the upper layer molded body 20 having the above.
  • the upper layer molded body 20 When the upper layer molded body 20 is integrated with the core material 30 and the base material 40 in the next step, it is necessary to reattach and position the upper electrode engraving concave mold 60 on the upper electrode engraving concave mold 60. It is desirable that the mold 60 is provided with protrusions or dents for positioning and alignment of registration marks and the like. Alternatively, after molding the upper layer molded body 20 molded into the upper electrode engraving concave mold 60, the upper layer molded body 20 is engraved with tape or the like without removing the upper layer molded body 20 from the upper electrode engraving concave mold 60. It is desirable to move to the next step while keeping the concave mold 60.
  • the upper electrode engraving concave mold 60 and the electrode flat plate mold 74 used in the molding step of the upper layer molded body 20 can be used.
  • the lower electrode convex mold 70 is removed from the electrode flat plate mold 74.
  • the base material 40 is placed on the electrode flat plate mold 74, and the core material 30 is placed on the base material 40.
  • the core material 30 is aligned with the electrode flat plate mold 74 by a positioning protrusion (not shown) or the like so as to fit well into the convex portion 23 of the upper layer molded body 20 to be integrated.
  • the upper electrode engraving concave mold 60 to which the upper layer molded body 20 is attached by tape or the like is brought close to the electrode flat plate mold 74 from above, and the core material 30 is attached to the convex portion of the upper layer molded body 20 as shown in FIG. Insert into 23. From this state, the upper electrode engraving concave mold 60 is further pressed against the electrode flat plate mold 74 and high-frequency dielectric heating is performed to integrate the upper layer molded body 20 with the core material 30, and further, the base material 40 is the core material.
  • the upper layer molded body 20 is fused with the fusing blade 62 into a desired three-dimensional shape while being integrated with the 30.
  • the upper layer molded body 20 having a three-dimensional shape as shown in FIGS. 1 and 2 is obtained.
  • the core material 30 is filled in the convex portion 23 inside the surface, and the three-dimensional decorative piece 10 connected to the base material 40 is obtained.
  • the base material 40 may also be cut into a desired shape with scissors, a cutter, a Thomson remover, or the like.
  • the three-dimensional decorative piece 10 obtained can fix and maintain its three-dimensional shape.
  • This three-dimensional shape is not a shape of the lower layer material as in the past. That is, since the core material 30 is formed into a three-dimensional shape in advance, the thickness can be formed to be thicker than that of the shaping of the lower layer material, and the bulkiness of the three-dimensional decorative piece 10 can be achieved.
  • the three-dimensional decorative piece 10 can have a thickness of 3 mm to more than 10 mm excluding the base material 40.
  • the base material 40 has a flat shape and does not have irregularities matching the shape of the upper layer molded body 20 as in the following embodiment, so that the base material 40 is prevented from wrinkling. it can.
  • the core material 30 is formed on the base material 40, and the upper layer molded body 20 is formed on the core material 30.
  • the present embodiment as shown in FIG. 9, a three-dimensional decorative piece 10 having a structure in which a base material 40 and an upper layer molded body 20 are covered on a core material 30 is produced.
  • the same parts as those in the first embodiment, such as the material of each layer, will be omitted as appropriate.
  • the core material 30 is produced in the same manner as in the first embodiment.
  • the upper layer material 21 and the base material 40 are stacked so that the base material 40 is on the lower side, the base material 40 is on the lower electrode convex 70 side, and the upper layer material 21 is on the lower electrode convex type 70 side.
  • the base material 40 and the upper layer material 21 are arranged between the molds.
  • the upper electrode engraving concave mold 60 is brought close to the upper layer material 21 to perform high-frequency dielectric heating.
  • the upper layer material 21 and the base material 40 have a shape having a convex portion 23 along the upper electrode engraving concave mold 60, that is, a concave portion 42 along the convex portion 71 of the lower electrode convex mold 70 on the base material 40. It is transformed and molded into a shape having.
  • the upper layer molded body 20 and the base material 40 can be integrated into a three-dimensional shape.
  • the three-dimensional decorative piece 10 has a three-dimensional shape in which the upper layer molded body 20 and the base material 40 have a three-dimensional shape, and the convex portion 23 inside the base material 40 is filled with the core material 30. , Fixed and maintained by the core material 30.
  • the three-dimensional decorative piece 10 can fix and maintain the three-dimensional shape of the upper layer molded body 20 and the base material 40 by the core material 30.
  • This three-dimensional shape is not a shape of the lower layer material as in the past. That is, since the core material 30 is formed into a three-dimensional shape in advance, the thickness can be formed to be thicker than that of the shaping of the lower layer material, and the bulkiness of the three-dimensional decorative piece 10 can be achieved.
  • the three-dimensional decorative piece 10 can have a thickness of 3 mm to more than 10 mm.
  • FIG. 13 is a cross-sectional view of the three-dimensional decorative piece 10 of the finished product obtained by the third embodiment.
  • the double-sided tape 44 is a tape having both front and back surfaces to be attached, and in the present embodiment, a release paper 45 is attached to one side in order to directly attach the three-dimensional decorative piece 10 to a car body or the like. Is. Other parts similar to those in the first embodiment will be omitted as appropriate.
  • the three-dimensional symbol is different from the first embodiment and the second embodiment, and specifically, the alphabet "ULTRA" is adopted as the three-dimensional symbol.
  • FIG. 14 shows a cross-sectional view of a mold for forming the core material 30 of the third embodiment.
  • FIG. 14A shows a plan view of the core material molding die 50
  • FIG. 14B shows a cross-sectional view of the core material molding die 50 and the electrode flat plate mold 54 along the lines EE'.
  • the core material molding die 50 is engraved with a concave pattern 51 corresponding to the three-dimensional pattern “ULTRA” of the three-dimensional decorative piece 10 to be formed.
  • the synthetic resin material 31 is injected into the concave pattern 51 of the core material molding mold 50 in a fluid state. Then, a film 33 such as a thermoplastic synthetic resin film is put on the injected synthetic resin material 31.
  • the core material molding die 50 and the electrode flat plate mold 54 are brought close to each other, high-frequency dielectric heating is performed, and cooling is performed to mold and cure the synthetic resin material 31 and integrate it with the film 33.
  • the electrode flat plate mold 54 is separated from the core material molding die 50, and the molded and cured core material 30 is taken out. As shown in FIG. 15, it can be seen that in the core material 30, the portions separated in an island shape according to the three-dimensional shape are connected by the film 33.
  • the molding of the upper layer molded body 20 can be carried out before and after or in parallel with the molding and curing of the core material 30.
  • the mold may be composed of an upper electrode engraving concave mold 60 (FIG. 16) and a lower electrode convex mold 70 (FIG. 16) placed on the electrode flat plate mold 74. it can.
  • the upper electrode engraving concave mold 60 has a concave portion 61 that matches the three-dimensional shape of the upper layer molded body 20 to be formed.
  • the outer periphery of the recess 61 may be provided with a fusing blade 62 capable of cutting the upper layer molded body 20.
  • the lower electrode convex mold 70 has a convex portion 71 corresponding to the three-dimensional pattern of the upper layer molded body 20, as shown in FIG. 17 (a) and the cross-sectional view 17 (b) along the line GG'. It can be used by being placed on the electrode flat plate mold 74. Both molds are connected to a high frequency dielectric oscillator.
  • a sheet-shaped upper layer material 21 forming the upper layer molded body 20 is sandwiched between the upper electrode engraving concave mold 60 and the lower electrode convex mold 70 in a separated state.
  • the upper layer material 21 is matched with the three-dimensional patterns of the concave portions 61 and the convex portions 71 of the molds 60 and 70. It is molded as an upper layer molded body 20 having a three-dimensional shape.
  • the upper layer molded body 20 is once raised together with the upper electrode engraving concave mold 60.
  • it is desirable that the upper layer molded body 20 is integrally raised with the upper electrode engraving concave mold 60 by sticking with tape or the like.
  • the lower electrode convex mold 70 is removed from the electrode flat plate mold 74.
  • the double-sided tape 44 whose lower surface side is the release paper 45 is placed on the electrode flat plate mold 74, and the core material 30 (FIG. 15) is attached onto the double-sided tape 44.
  • the double-sided tape 44 may have the core material 30 attached on the electrode flat plate mold 74, but the core material 30 may be attached to the double-sided tape 44 in advance and then placed on the electrode flat plate mold 74. You may.
  • the core material 30 is aligned with the electrode flat plate mold 74 by a positioning protrusion (not shown) or the like so as to fit well into the protruding portion of the upper layer molded body 20 to be integrated.
  • the upper electrode engraving concave mold 60 is lowered together with the upper layer molded body 20, and the core material 30 is fitted into the convex portion 23 of the upper layer molded body 20. From this state, by further lowering the upper electrode engraving concave mold 60 and performing high-frequency dielectric heating, the core material 30 is integrated with the upper layer molded body 20, and the upper layer molded body 20 is desired by the fusing blade 62. It is fused into a three-dimensional shape.
  • the convex portion 23 is filled with the core material 30, and the three-dimensional decorative piece 10 attached to the double-sided tape 44 is obtained.
  • the obtained three-dimensional decorative piece 10 may be attached to a car body or the like as an emblem by peeling off the release paper 45.
  • the unnecessary portion of the upper layer molded body 20 can be removed by Thomson kiss cut, laser kiss cut, or the like instead of high frequency fusing.
  • Three-dimensional decorative piece 20 Upper layer molded body 30 Core material 40 Base material 44 Double-sided tape 50 Core material molding mold 54 Electrode flat plate mold 60 Upper electrode engraving concave mold 70 Lower electrode convex mold 74 Electrode flat plate mold

Abstract

本発明は、嵩高且つ形状を芯材により維持できる熱可塑性合成樹脂製の立体装飾片及びその製造方法を提供する。本発明の立体装飾片は、金属蒸着層を含む上層材料から構成され、高周波誘電加熱により表面側に凸部分を有する形状に立体成形された上層成形体と、前記上層成形体の前記凸部分に充填され、流動性を有する合成樹脂を硬化させてなる芯材と、前記芯材の裏面側に溶着された基材と、を具える。

Description

立体装飾片及びその製造方法
 本発明は、衣類、バッグ、帽子、車、バイク、ボート、家電、ゲーム機などの被着体に装着される立体装飾片及びその製造方法に関するものであり、より具体的には、嵩高であり形状を芯材により維持できる立体装飾片及びその製造方法に関するものである。
 高周波誘電加熱により製造されるエンブレム、アップリケ、ステッカー等の立体装飾片が提案されている(たとえば、特許文献1参照)。
 立体装飾片は、金属蒸着層を含む上層材料と、熱可塑性合成樹脂シートや発泡樹脂シートを含む下層材料を彫刻金型と電極平板金型の間に挟みつつ、高周波誘電加熱を施し、下層材料を軟化、賦形しつつ、上層材料と下層材料を溶着させている。
特許第3235943号公報
 高級感、立体感を高めるために立体装飾片の嵩高化が求められている。嵩高の立体装飾片を製造するには、下層材料を厚くする必要があるが、高周波誘電加熱の特性として、電波が刃先や模様の角部に集中してしまうため、上層材料や下層材料が全体的に加熱されず、賦形や溶着を上手く行なうことができなかった。このため、製造できる立体装飾片は、厚さ2mm程度が限界であった。また、下層材料を省略して上層材料のみを空洞に形成し、嵩高の立体装飾片を製造することも考えられるが、上層材料は薄い材料であるから、立体形状を維持することは困難であり、押さえつけられたり、物が当たったりすることで、立体装飾片に凹みや潰れが生じることがある。
 本発明は、嵩高且つ形状を芯材により維持できる熱可塑性合成樹脂製の立体装飾片及びその製造方法を提供することを目的とする。
 本発明の立体装飾片は、
 金属蒸着層を含む上層材料から構成され、高周波誘電加熱により表面側に凸部分を有する形状に立体成形された上層成形体と、
 前記上層成形体の前記凸部分に充填され、流動性を有する合成樹脂を硬化させてなる芯材と、
 前記芯材の裏面側に溶着された基材と、
 を具える。
 前記芯材と前記基材との間には、熱可塑性合成樹脂フィルムを配置することができる。
 本発明の立体装飾片は、
 金属蒸着層を含む上層材料から構成され、高周波誘電加熱により表面側に凸部分を有する形状に立体成形された上層成形体と、
 前記上層成形体の前記凸部分に充填され、流動性を有する合成樹脂を硬化させてなる芯材と、
 前記芯材の裏面側に溶着された熱可塑性合成樹脂フィルムと、
 前記熱可塑性合成樹脂フィルムの裏面側に貼着された両面テープと、
 を具える。
 本発明の立体装飾片は、
 金属蒸着層を含む上層材料から構成され、高周波誘電加熱により表面側に凸部分を有する形状に立体成形された上層成形体と、
 前記上層成形体の裏面側に溶着され、前記上層成形体の前記凸部分に沿って裏面側に凹部分を有する基材と、
 前記凸部分に沿って凹んだ前記基材の前記凹部分に充填され、流動性を有する合成樹脂を硬化させてなる芯材と、
 を具える。
 前記芯材を形成する合成樹脂は、熱可塑性合成樹脂ゾル、熱硬化性合成樹脂、及び、常温硬化性2液性合成樹脂からなる群より選択される1の材料とすることができる。
 本発明の立体装飾片の製造方法は、
 立体図柄を有する立体装飾片の製造方法であって、
 立体図柄が彫刻された芯材成形型に、流動性を有する状態の合成樹脂を注入し、上側から電極平板金型で押圧しつつ、高周波誘電加熱を行なうことで、前記合成樹脂を前記立体図柄に合わせた凸部分を有する形状に硬化させた芯材を成形する芯材の成形ステップ、
 立体図柄が彫刻された電極彫刻凹金型と電極凸型の間に、金属蒸着層を含む上層材料を挟んで押圧し、高周波誘電加熱を行なって表面側に前記立体図柄に合わせた凸部分を有する形状に上層成形体を立体成形する上層成形体の成形ステップと、
 電極平板金型の上に基材、及び、前記基材の上に前記芯材を配置し、前記電極彫刻凹金型に前記上層成形体を保持した状態で、前記電極平板金型と前記電極彫刻凹金型を対向させ、前記上層成形体の前記部分が前記芯材の前記凸部分に被さるように前記電極彫刻凹金型を前記電極平板金型に接近させて高周波誘電加熱を行なって、前記上層成形体、前記芯材及び基材を溶着すると共に、前記上層成形体と前記芯材を前記図柄に沿って溶断する一体化ステップ、
 を有する。
 前記芯材の成形ステップは、前記成形型に、前記合成樹脂を注入し、上側から熱可塑性合成樹脂フィルムを被せ、さらに上側から電極平板金型で押圧しつつ、高周波誘電加熱を行なうことで芯材を成形することができる。
 本発明の立体装飾片の製造方法は、
 立体図柄を有する立体装飾片の製造方法であって、
 金属蒸着層を含む上層材料と基材を重ね、立体図柄が彫刻された電極彫刻凹金型と電極凸型との間に、前記上層材料が前記電極彫刻凹金型と対向するよう挟んで押圧し、高周波誘電加熱を行なって前記上層材料と前記基材を溶着させると共に、前記上層材料が成形された上層成形体と前記基材が前記立体図柄に合わせた凸部分を有する形状に成形され、前記基材側の裏面に凹部分を形成する、上層成形体と基材の一体化ステップ、
 前記電極彫刻凹金型を下側に配置し、前記上層成形体を前記基材が上向きになるように前記電極彫刻凹金型上に載置した状態で、前記基材の前記凹部分に流動性を有する合成樹脂材料を注入し、電極平板金型で押圧しつつ高周波誘電加熱を行なって、前記合成樹脂材料を硬化させて芯材を成形すると共に、前記上層成形体を前記図柄に沿って溶断する、上層成形体、基材及び芯材の一体化ステップ、
 を有する。
 本発明の立体装飾片の製造方法は、
 立体図柄を有する立体装飾片の製造方法であって、
 立体図柄が彫刻された芯材成形型に、流動性を有する合成樹脂を注入し、熱可塑性合成樹脂フィルムを被せ、上側から電極平板金型で押圧しつつ、高周波誘電加熱を行なうことで、前記合成樹脂を前記立体図柄に合わせた凸部分を有する形状に硬化させた芯材を成形すると共に、前記芯材と前記熱可塑性合成樹脂フィルムを溶着する芯材の成形ステップ、
 立体図柄が彫刻された電極彫刻凹金型と電極凸型の間に、金属蒸着層を含む上層材料を挟んで押圧し、高周波誘電加熱を行なって表面側に前記立体図柄に合わせた凸部分を有する形状に上層成形体を立体成形する上層成形体の成形ステップと、
 電極平板金型の上に下面側に離型紙が貼着された両面テープを配置し、前記両面テープの上に前記熱可塑性合成樹脂フィルムが下面側となるように前記芯材を載せ、前記電極彫刻凹金型に前記上層成形体を保持した状態で、前記電極平板金型と前記電極彫刻凹金型を対向させ、前記上層成形体の前記凸部分が前記芯材の前記凸部分に被さるように前記電極彫刻凹金型を前記電極平板金型に接近させて高周波誘電加熱を行なって、前記上層成形体と前記芯材を溶着すると共に、前記上層成形体を前記図柄に沿って溶断する一体化ステップ
 を有する。
 本発明の立体装飾片及びその製造方法によれば、金属蒸着層を含む上層材料は、上層成形体として成形された後、立体図柄に合わせた凸部分の裏面側に芯材を充填させて構成されるから、上層成形体の凸部分は、その形状を芯材により固定、維持することができる。芯材は、流動性を有する合成樹脂を硬化して形成することができるため、上層成形体の凸部分の高さを高くすることができ、嵩高の立体装飾片を作製することができる。
図1は、第1実施形態の立体装飾片の平面図である。 図2は、図1の線A-A’に沿う断面図である。 図3は、第1実施形態による、(a)芯材成形型の平面図、(b)は線B-B’に沿う断面図である。 図4は、芯材の断面図である。 図5は、(a)上部電極凹金型の平面図、(b)は線C-C’に沿う断面図である。 図6は、(a)下部電極凸型の平面図、(b)は線D-D’に沿う断面図である。 図7は、上層成形体を形成するステップを示す説明図である。 図8は、上層成形体、芯材及び基材を一体化するステップを示す説明図である。 図9は、第2実施形態の立体装飾片の断面図である。 図10は、第2実施形態による、上層成形体と基材の一体化ステップを示す説明図である。 図11は、図10に続く上層成形体と基材の一体化ステップを示す説明図である。 図12は、基材の凹部分に芯材を充填し、一体化するステップを示す説明図である。 図13は、第3実施形態の立体装飾片の断面図である。 図14は、第3実施形態による、(a)芯材成形型の平面図、(b)は線E-E’に沿う断面図である。 図15は、芯材の断面図である。 図16は、(a)上部電極凹金型の平面図、(b)は線F-F’に沿う断面図である。 図17は、(a)下部電極凸型の平面図、(b)は線G-G’に沿う断面図である。 図18は、上層成形体を形成するステップを示す説明図である。 図19は、上層成形体、芯材及び基材(両面テープ)を一体化するステップを示す説明図である。
 以下、本発明の立体装飾片10及びその製造方法について、図面を参照しながら説明を行なう。なお、各図に示す立体装飾片10や金型の厚み、大きさ、凹凸、形状、図柄などは一例であり、種々の図柄等を採用することができ、また、説明のために厚みなどは誇張して示している部分もある。
<第1実施形態>
 本発明の立体装飾片10は、表面側から見た図1に示すように、布帛等からなる基材40の上に、立体図柄を構成する上層成形体20を具える。立体装飾片10は、図1の線A-A’に沿う断面図2に示すように、上層成形体20は、基材40から離れる方向に膨らんだ立体図柄に沿って内側に凸部分23が形成されている。上層成形体20と基材40との間には、凸部分23に芯材30が充填されている。芯材30は硬化しており、立体装飾片10の形状、すなわち、上層成形体20の形状を固定、維持し、上層成形体20を内側から押して上層成形体20の凹みや潰れを防止している。上層成形体20と芯材30、芯材30と基材40は、たとえば溶着により一体化している。
 上層成形体20は、熱可塑性合成樹脂フィルムと、金属蒸着層を含む積層フィルムからなるシート状の上層材料21を立体形状に成形して構成することができる。熱可塑性合成樹脂フィルムは、たとえばポリ塩化ビニル、ポリウレタン等の軟質の熱可塑性合成樹脂を例示できる。また、金属蒸着層の金属材料としてインジウムを例示できる。そして、金属蒸着層は、金属材料を熱可塑性合成樹脂フィルムに蒸着することで上層材料21に設けることができる。なお、上層材料21には、金属蒸着層の下面に、必要に応じて接着剤層や、エチレン-ビニルアルコール共重合体(EVOH)フィルムの如き移染防止フィルムや接着剤層を介在させ、また、熱可塑性合成樹脂フィルムを重ねた構成とすることもできる。
 上層材料21の上面には、透明カラーインク、マット、グロスインクなどにより、所望の模様、所望の色で印刷を行なうこともできる。さらには、これら印刷の上から、紫外線硬化型の透明UVインク等をスクリーン印刷することで、細線模様を付加し、モール刺繍の如き高級感、重厚さ、精緻さ、色彩の深み、金属感、さらには、微細な凹凸などを表現することもできる。
 芯材30は、流動性を有する合成樹脂材料31を硬化させて構成することができる。合成樹脂材料31は、後述するとおり、予め金型で上層成形体20の凸部分23の立体形状に沿って成形、硬化させたものを当該凸部分23に嵌めて一体化することで上層成形体20の形状を固定、維持する。芯材30に採用できる合成樹脂材料として、熱可塑性合成樹脂ゾル、熱硬化性合成樹脂、常温硬化性2液性合成樹脂を例示することができるが、これに限定されるものではない。
 基材40は、布や織物などの布帛、不織布、或いは、両面テープ等を挙げることができる。基材40は、布帛に不織布を重ねたもの、布帛に両面テープを重ねたものであってもよい。
 上層成形体20の成形、芯材30の成形と硬化、上層成形体20と芯材30、芯材30と基材40の溶着は、高周波誘電加熱により行なうことができる。もちろん、これらの成形等には、圧縮成形、注型成形、その他の公知の成形方法を採用することもできる。しかしながら、金型を加熱して成形した場合には、10分或いはそれ以上の時間が掛かるが、高周波誘電加熱を採用することで、加熱時間は10~30秒程度で済ませることができるため、高周波誘電加熱の採用が極めて有効である。
 第1実施形態の立体装飾片10は、芯材30の成形ステップ、上層成形体20の成形ステップ、上層成形体20、芯材30及び基材40との一体化ステップにより製造することができる。各ステップについて、以下で説明する。
<芯材30の成形ステップ>
 芯材30の成形ステップでは、合成樹脂材料31を立体装飾片10の形状、すなわち、上層成形体20の凸部分23の形状に合わせて成形させ、硬化させて、芯材30を得る。図3は、芯材30を成形する金型の実施形態を示しており、図3(a)は、芯材成形型50の平面図、図3(b)は、芯材成形型50と電極平板金型54のB-B’に沿う断面図を示している。図3に示すように、芯材成形型50には、形成すべき立体装飾片10の立体図柄に対応して凹んだ凹模様51が彫刻されている。本実施形態では、凹模様51は、星形立体図柄と当該星形立体図柄を囲む植物型立体図柄であり、星形立体図柄と植物型立体図柄は、島状に離れて形成されている。
 なお、成形された芯材30を後述するステップで他の金型に位置決めするために、芯材成形型50には、凹模様51の外側に位置決め用のトンボ52を凹設しておくことが望ましい。
 芯材成形型50と電極平板金型54は、相対的に接近、離間可能な構成となっており、図示の実施形態では、凹模様51が上向きとなるように配置された芯材成形型50に対して、電極平板金型54が降下して接近、上昇して離間する構成としている。
 芯材成形型50と電極平板金型54は、それぞれ高周波誘電発振器に連繋されており、芯材成形型50と電極平板金型54を接近させた状態で、これら金型間に高周波電圧を印加することで、金型間に配置された誘電体(本実施形態では合成樹脂材料31)の高周波誘電加熱を行なうことができる。
 然して、図3(b)に示すように、芯材成形型50の凹模様51に流動性のある状態の合成樹脂材料31、たとえば熱可塑性合成樹脂ゾルを注入する。合成樹脂材料31を注入した後、必要に応じて、芯材成形型50の上から、たとえば熱可塑性合成樹脂フィルムなどのフィルム33を載置する。本実施形態では、凹模様51が芯材成形型50に離間して島状に形成されているため、島状に離間して形成される芯材30どうしが分離しないように1枚のフィルム33に載せるようにしている。従って、芯材30が1つに繋がっている場合にはフィルム33は省略できる。また、芯材成形型50は、凹模様51どうしが繋がる凹みを形成し、当該凹みに合成樹脂材料31を注入して、凹模様51に形成される芯材30どうしを連繋するようにしてもよい。
 そして、芯材成形型50と電極平板金型54を接近させ、高周波誘電加熱を行ない、冷却を施すことで、合成樹脂材料31が成形、硬化する。高周波誘電加熱が完了すると、電極平板金型54を離間させて、芯材成形型50から成形、硬化した芯材30を取り出す。図4は、取り出された芯材30を示している。芯材30は、立体形状に合わせた立体部がフィルム33により連繋された形態であることがわかる。また、フィルム33には、芯材成形型50のトンボ52に相当する位置に位置決め用突起34が形成できていることがわかる。
<上層成形体20の成形>
 次に、上層成形体20の成形方法について説明する。なお、上層成形体20の成形は、上記した芯材30の成形、硬化と前後又は並行して実施できる。
 図5乃至図7は、上層成形体20を形成する金型の断面図である。金型は、図7に示すように、接近、離間可能に配置された上部電極彫刻凹金型60(図5)と、下部電極凸型70を載置した電極平板金型74(図6)から構成することができる。上部電極彫刻凹金型60は、図5(a)及び線C-C’に沿う断面図5(b)に示すように、形成される上層成形体20の立体形状に合わせた凹部61を有し、当該凹部61の外周に上層成形体20を切断可能な溶断刃62を具えた形態とすることができる。また、下部電極凸型70は、図6(a)及び線D-D’に沿う断面図6(b)に示すように、上層成形体20の立体図柄に対応した形状の凸部71を有しており、電極平板金型74の上に載置して使用することができる。なお、電極平板金型74は、芯材成形型50の電極平板金型54を援用してもよい。
 上部電極彫刻凹金型60は、高周波誘電発振器に連繋されており、下部電極凸型70は電極平板金型74を介して高周波誘電発振器に連繋されている。そして、下部電極凸型70に上部電極彫刻凹金型60を接近させた状態で、これら金型間に高周波電圧を印加することで、金型間に高周波誘電加熱を行なうことができる。
 然して、図7(a)に示すように、離間状態にある上部電極彫刻凹金型60と下部電極凸型70との間に、上層成形体20を形成するシート状の上層材料21を挟み、金型60,70間に高周波誘電加熱を行なうことで、図7(b)に示すように、上層材料21は、金型60,70の凹部61と凸部71の立体図柄に合わせた立体形状を有する上層成形体20として成形される。なお、上層成形体20は次のステップにて芯材30及び基材40と一体化する際に、再度、上部電極彫刻凹金型60に装着、位置決めする必要があるから、上部電極彫刻凹金型60には、トンボなどの位置決め、位置合わせ用の突起や凹みを設けておくことが望ましい。或いは、上部電極彫刻凹金型60に成形された上層成形体20を成形した後、上層成形体20を上部電極彫刻凹金型60から取り外さずに、テープなどで上層成形体20を上部電極彫刻凹金型60に留めた状態で、次のステップに移行することが望ましい。
<上層成形体20、芯材30及び基材40の一体化ステップ>
 続いて、上記により得られた芯材30と上層成形体20を基材40上で一体化すると共に、芯材30と上層成形体20の不要部分を溶断刃62により切断し、除去可能な状態とする。
 本ステップでは、上層成形体20の成形ステップで用いた上部電極彫刻凹金型60と電極平板金型74と援用することができる。具体的には、図7の状態から図8に示すように、下部電極凸型70を電極平板金型74から取り外す。この状態から、電極平板金型74の上に、基材40を載せ、その上に芯材30を載置する。芯材30は、位置決め突起(図示せず)等により電極平板金型74に位置合わせし、一体化される上層成形体20の凸部分23に上手く嵌まり込むようにする。
 そして、テープ等により上層成形体20が取り付けられた上部電極彫刻凹金型60を上部から電極平板金型74に接近させ、図8に示すように、芯材30を上層成形体20の凸部分23に挿入する。この状態から、さらに上部電極彫刻凹金型60を電極平板金型74に押しつけ、高周波誘電加熱を行なうことで、上層成形体20は芯材30と一体化、さらには、基材40は芯材30と一体化すると共に、上層成形体20は溶断刃62により所望の立体形状に溶断される。
 然して、一体化された上層成形体20、芯材30及び基材40から、上層成形体20の不要箇所を除去することで、図1及び図2に示すように立体形状を有する上層成形体20の内側の凸部分23に芯材30が充填され、基材40と連繋された立体装飾片10が得られる。なお、基材40も鋏やカッター、トムソン抜きなどで所望形状に切断すればよい。
 得られた立体装飾片10は、上層成形体20の凸部分23の内側に芯材30が充填されているから、その立体形状を固定、維持することができる。この立体形状は、従前のように下層材料を賦形したものではない。すなわち、芯材30は予め立体形状に成形しているから、下層材料の賦形に比べて厚さを厚く形成でき、立体装飾片10の嵩高化を達成することができる。たとえば、立体装飾片10は、基材40を除いた厚さを3mm~10mm超とすることができる。また、本実施形態では、基材40は、平坦形状であり、次に示す実施形態のように上層成形体20の形状に合わせた凹凸はないので、基材40に皺が発生することも防止できる。
<第2実施形態>
 上記第1実施形態では、図1及び図2に示すように、基材40の上に芯材30、そしてその上に上層成形体20を形成している。本実施形態では、図9に示すように、芯材30の上に基材40と上層成形体20を被せた構成とした立体装飾片10を作製する。なお、各層の材料等、第1実施形態と同様である部分は、適宜説明を省略する。
 芯材30は、上記第1実施形態と同様の要領で作製する。
<上層成形体20と基材40の一体成形>
 上層成形体20と基材40は、図10及び図11に示すように、第1実施形態の図5及び図6で説明した上部電極彫刻凹金型60と下部電極凸型70を採用できる。下部電極凸型70は電極平板金型74の上に載置している。
 そして、上層材料21と基材40は、図10に示すように、基材40が下側となるように重ね、下部電極凸型70側に基材40、その上に上層材料21となるように金型間に基材40と上層材料21を配置する。この状態で、図11に示すように上部電極彫刻凹金型60を接近させて、上層材料21に高周波誘電加熱を行なう。これにより、上層材料21と基材40は、上部電極彫刻凹金型60に沿った凸部分23を有する形状、すなわち、基材40に下部電極凸型70の凸部71に沿った凹部分42を有する形状に変形、成形される。この状態で上層材料21を冷却して硬化させることにより、上層成形体20と基材40を立体形状に一体化することができる。
<上層成形体20、基材40及び芯材30の一体化ステップ>
 続いて、図12に示すように、上層成形体20及び基材40が取り付けられた上部電極彫刻凹金型60を裏返し、基材40の凹部分42に予め成形された芯材30を重ね、芯材30を基材40の凹部分42に挿入する。そして、上側から電極平板金型74を接近させ、押し付けながら上部電極彫刻凹金型60と電極平板金型74との間で高周波誘電加熱を行なう。これにより、基材40は芯材30と一体化し、また、上層成形体20は溶断刃62により所望の立体形状に溶断される。
 然して、一体化された上層成形体20、基材40及び芯材30から、上層成形体20の不要箇所を除去することで、図9に示すような断面を有する立体装飾片10を得ることができる。立体装飾片10は、上層成形体20と基材40が立体形状を有し、基材40の内側の凸部分23に芯材30が充填された形態であり、上層成形体20の立体形状は、芯材30により固定、維持される。
 上記のように、立体装飾片10は、上層成形体20及び基材40の立体形状を芯材30により固定、維持することができる。この立体形状は、従前のように下層材料を賦形したものではない。すなわち、芯材30は予め立体形状に成形しているから、下層材料の賦形に比べて厚さを厚く形成でき、立体装飾片10の嵩高化を達成することができる。たとえば、立体装飾片10は、厚さを3mm~10mm超とすることができる。
<第3実施形態>
 第1実施形態では、基材40として布帛を用いているが、本実施形態では、基材40として布帛に代えて両面テープ44を採用する。図13は、第3実施形態により得られる完成品の立体装飾片10の断面図である。両面テープ44は、表裏両面が貼着面であるテープであり、本実施形態では、車のボディなどに立体装飾片10を直接貼着するために、片面に離型紙45が貼着されたものである。その他、第1実施形態と同様の箇所については適宜説明を省略する。なお、本実施形態では、図14等に示すように、第1実施形態、第2実施形態とは異なる立体図柄であって、具体的には、アルファベットの「ULTRA」を立体図柄として採用する。
<芯材30の成形、硬化ステップ>
 図14は、第3実施形態の芯材30を成形する金型の断面図を示している。図14(a)は、芯材成形型50の平面図、図14(b)は、芯材成形型50と電極平板金型54の線E-E’に沿う断面図を示している。図14(a)に示すように、芯材成形型50には、形成すべき立体装飾片10の立体図柄「ULTRA」に対応して凹んだ凹模様51が彫刻されている。
 そして、第1実施形態と同様、図14(b)に示すように、合成樹脂材料31を流動性のある状態で芯材成形型50の凹模様51に合成樹脂材料31を注入する。そして、注入された合成樹脂材料31の上に熱可塑性合成樹脂フィルム等のフィルム33を被せる。
 この状態で、芯材成形型50と電極平板金型54を接近させ、高周波誘電加熱を行ない、冷却を施すことで、合成樹脂材料31を成形、硬化させ、フィルム33と一体化させる。高周波誘電加熱が完了すると、電極平板金型54を離間させて、芯材成形型50から成形、硬化した芯材30を取り出す。図15に示すように、芯材30は、立体形状に合わせて島状に離れた部分がフィルム33により連繋されていることがわかる。
<上層成形体20の成形>
 本実施形態においても、上層成形体20の成形は、芯材30の成形、硬化と前後又は平行して実施することができる。
 図16、図17は、上層成形体20を形成する金型の断面図である。第1実施形態と同様、金型は、上部電極彫刻凹金型60(図16)と、電極平板金型74の上に載置された下部電極凸型70(図16)から構成することができる。上部電極彫刻凹金型60は、図16(a)及び線F-F’に沿う断面図16(b)に示すように、形成される上層成形体20の立体形状に合わせた凹部61を有し、当該凹部61の外周に上層成形体20を切断可能な溶断刃62を具えた形態とすることができる。また、下部電極凸型70は、図17(a)及び線G-G’に沿う断面図17(b)に示すように、上層成形体20の立体図柄に対応した凸部71を有し、電極平板金型74の上に載置して使用することができる。何れの金型も高周波誘電発振器に連繋されている。
 然して、図18(a)に示すように、離間状態にある上部電極彫刻凹金型60と下部電極凸型70との間に、上層成形体20を形成するシート状の上層材料21を挟み、金型60,70を接近させて高周波誘電加熱を行なうことで、図18(b)に示すように、上層材料21は、金型60,70の凹部61と凸部71の立体図柄に合わせた立体形状を有する上層成形体20として成形される。なお、上層成形体20の成形が完了すると、上部電極彫刻凹金型60と共に上層成形体20を一旦上昇させる。このとき、図18(b)に示すように、上層成形体20はテープで貼着する等により上部電極彫刻凹金型60と一体に上昇させるようにすることが望ましい。
<上層成形体20、芯材30、両面テープ44の一体化ステップ>
 続いて、下部電極凸型70を電極平板金型74から取り外す。そして、電極平板金型74の上に下面側が離型紙45である両面テープ44を載置し、その上に芯材30(図15)を貼着させる。両面テープ44は、電極平板金型74の上で芯材30を貼着してもよいが、予め両面テープ44に芯材30を貼着してから電極平板金型74の上に載せるようにしてもよい。芯材30は、位置決め突起(図示せず)等により電極平板金型74に位置合わせし、一体化される上層成形体20の突部分に上手く嵌まり込むようにする。
 この状態から、図19に示すように、上部電極彫刻凹金型60を上層成形体20と共に降下させ、芯材30を上層成形体20の凸部分23に嵌める。この状態から、さらに上部電極彫刻凹金型60を降下させつつ高周波誘電加熱を行なうことで、芯材30は上層成形体20と一体化されると共に、上層成形体20は溶断刃62により所望の立体形状に溶断される。
 然して、一体化された上層成形体20、芯材30及び両面テープ44から、上層成形体20の不要箇所を除去することで、図13に示すように立体形状を有する上層成形体20の内側の凸部分23に芯材30が充填され、両面テープ44に貼着された立体装飾片10が得られる。得られた立体装飾片10は、離型紙45を剥がし、車のボディなどにエンブレムとして貼着すればよい。
 上記説明は、本発明を説明するためのものであって、特許請求の範囲に記載の発明を限定し、或いは範囲を限縮するように解すべきではない。また、本発明の各部構成は、上記実施形態に限らず、特許請求の範囲に記載の技術的範囲内で種々の変形が可能であることは勿論である。
 たとえば、上層成形体20の不要部分の除去は、高周波溶断に代えて、トムソンキスカットやレーザーキスカット等により実施することもできる。
10 立体装飾片
20 上層成形体
30 芯材
40 基材
44 両面テープ
50 芯材成形型
54 電極平板金型
60 上部電極彫刻凹金型
70 下部電極凸型
74 電極平板金型

Claims (9)

  1.  金属蒸着層を含む上層材料から構成され、高周波誘電加熱により表面側に凸部分を有する形状に立体成形された上層成形体と、
     前記上層成形体の前記凸部分に充填され、流動性を有する合成樹脂を硬化させてなる芯材と、
     前記芯材の裏面側に溶着された基材と、
     を具える立体装飾片。
  2.  前記芯材と前記基材との間には、熱可塑性合成樹脂フィルムが配置されている、
     請求項1に記載の立体装飾片。
  3.  金属蒸着層を含む上層材料から構成され、高周波誘電加熱により表面側に凸部分を有する形状に立体成形された上層成形体と、
     前記上層成形体の前記凸部分に充填され、流動性を有する合成樹脂を硬化させてなる芯材と、
     前記芯材の裏面側に溶着された熱可塑性合成樹脂フィルムと、
     前記熱可塑性合成樹脂フィルムの裏面側に貼着された両面テープと、
     を具える立体装飾片。
  4.  金属蒸着層を含む上層材料から構成され、高周波誘電加熱により表面側に凸部分を有する形状に立体成形された上層成形体と、
     前記上層成形体の裏面側に溶着され、前記上層成形体の前記凸部分に沿って裏面側に凹部分を有する基材と、
     前記凸部分に沿って凹んだ前記基材の前記凹部分に充填され、流動性を有する合成樹脂を硬化させてなる芯材と、
     を具える立体装飾片。
  5.  前記芯材を形成する合成樹脂は、熱可塑性合成樹脂ゾル、熱硬化性合成樹脂、及び、常温硬化性2液性合成樹脂からなる群より選択される1の材料である、
     請求項1乃至請求項4の何れかに記載の立体装飾片。
  6.  立体図柄を有する立体装飾片の製造方法であって、
     立体図柄が彫刻された芯材成形型に、流動性を有する状態の合成樹脂を注入し、上側から電極平板金型で押圧しつつ、高周波誘電加熱を行なうことで、前記合成樹脂を前記立体図柄に合わせた凸部分を有する形状に硬化させた芯材を成形する芯材の成形ステップ、
     立体図柄が彫刻された電極彫刻凹金型と電極凸型の間に、金属蒸着層を含む上層材料を挟んで押圧し、高周波誘電加熱を行なって表面側に前記立体図柄に合わせた凸部分を有する形状に上層成形体を立体成形する上層成形体の成形ステップと、
     電極平板金型の上に基材、及び、前記基材の上に前記芯材を配置し、前記電極彫刻凹金型に前記上層成形体を保持した状態で、前記電極平板金型と前記電極彫刻凹金型を対向させ、前記上層成形体の前記部分が前記芯材の前記凸部分に被さるように前記電極彫刻凹金型を前記電極平板金型に接近させて高周波誘電加熱を行なって、前記上層成形体、前記芯材及び基材を溶着すると共に、前記上層成形体と前記芯材を前記図柄に沿って溶断する一体化ステップ、
     を有する、
     立体装飾片の製造方法。
  7.  前記芯材の成形ステップは、前記成形型に、前記合成樹脂を注入し、上側から熱可塑性合成樹脂フィルムを被せ、さらに上側から電極平板金型で押圧しつつ、高周波誘電加熱を行なうことで芯材を成形する、
     請求項6に記載の立体装飾片の製造方法。
  8.  立体図柄を有する立体装飾片の製造方法であって、
     金属蒸着層を含む上層材料と基材を重ね、立体図柄が彫刻された電極彫刻凹金型と電極凸型との間に、前記上層材料が前記電極彫刻凹金型と対向するよう挟んで押圧し、高周波誘電加熱を行なって前記上層材料と前記基材を溶着させると共に、前記上層材料が成形された上層成形体と前記基材が前記立体図柄に合わせた凸部分を有する形状に成形され、前記基材側の裏面に凹部分を形成する、上層成形体と基材の一体化ステップ、
     前記電極彫刻凹金型を下側に配置し、前記上層成形体を前記基材が上向きになるように前記電極彫刻凹金型上に載置した状態で、前記基材の前記凹部分に流動性を有する合成樹脂材料を注入し、電極平板金型で押圧しつつ高周波誘電加熱を行なって、前記合成樹脂材料を硬化させて芯材を成形すると共に、前記上層成形体を前記図柄に沿って溶断する、上層成形体、基材及び芯材の一体化ステップ、
     を有する、
     立体装飾片の製造方法。
  9.  立体図柄を有する立体装飾片の製造方法であって、
     立体図柄が彫刻された芯材成形型に、流動性を有する合成樹脂を注入し、熱可塑性合成樹脂フィルムを被せ、上側から電極平板金型で押圧しつつ、高周波誘電加熱を行なうことで、前記合成樹脂を前記立体図柄に合わせた凸部分を有する形状に硬化させた芯材を成形すると共に、前記芯材と前記熱可塑性合成樹脂フィルムを溶着する芯材の成形ステップ、
     立体図柄が彫刻された電極彫刻凹金型と電極凸型の間に、金属蒸着層を含む上層材料を挟んで押圧し、高周波誘電加熱を行なって表面側に前記立体図柄に合わせた凸部分を有する形状に上層成形体を立体成形する上層成形体の成形ステップと、
     電極平板金型の上に下面側に離型紙が貼着された両面テープを配置し、前記両面テープの上に前記熱可塑性合成樹脂フィルムが下面側となるように前記芯材を載せ、前記電極彫刻凹金型に前記上層成形体を保持した状態で、前記電極平板金型と前記電極彫刻凹金型を対向させ、前記上層成形体の前記凸部分が前記芯材の前記凸部分に被さるように前記電極彫刻凹金型を前記電極平板金型に接近させて高周波誘電加熱を行なって、前記上層成形体と前記芯材を溶着すると共に、前記上層成形体を前記図柄に沿って溶断する一体化ステップ
     を有する、
     立体装飾片の製造方法。
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