WO2013008318A1 - フィルムで被覆された成形品 - Google Patents
フィルムで被覆された成形品 Download PDFInfo
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- WO2013008318A1 WO2013008318A1 PCT/JP2011/065911 JP2011065911W WO2013008318A1 WO 2013008318 A1 WO2013008318 A1 WO 2013008318A1 JP 2011065911 W JP2011065911 W JP 2011065911W WO 2013008318 A1 WO2013008318 A1 WO 2013008318A1
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- WIPO (PCT)
- Prior art keywords
- film
- substrate
- adhesive layer
- pressure
- molded article
- Prior art date
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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
- B29C51/00—Shaping 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
- B29C51/10—Forming by pressure difference, e.g. vacuum
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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
- B29C51/00—Shaping 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
- B29C51/16—Lining or labelling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/0007—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding involving treatment or provisions in order to avoid deformation or air inclusion, e.g. to improve surface quality
- B32B37/0023—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding involving treatment or provisions in order to avoid deformation or air inclusion, e.g. to improve surface quality around holes, apertures or channels present in at least one layer
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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
- B29C51/00—Shaping 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
- B29C51/12—Shaping 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 of articles having inserts or reinforcements
-
- 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
- B29C51/00—Shaping 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
- B29C51/14—Shaping 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
-
- 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
- B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
-
- 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
- B29C63/00—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor
- B29C63/02—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor using sheet or web-like material
-
- 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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/02—Preparation of the material, in the area to be joined, prior to joining or welding
- B29C66/022—Mechanical pre-treatments, e.g. reshaping
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/0007—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding involving treatment or provisions in order to avoid deformation or air inclusion, e.g. to improve surface quality
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/10—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B7/00—Layered 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
- B32B7/04—Interconnection of layers
- B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
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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
- B29C2791/00—Shaping characteristics in general
- B29C2791/004—Shaping under special conditions
- B29C2791/006—Using vacuum
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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
- B29C51/00—Shaping 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
- B29C51/04—Combined thermoforming and prestretching, e.g. biaxial stretching
-
- 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
- B29C51/00—Shaping 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
- B29C51/26—Component parts, details or accessories; Auxiliary operations
- B29C51/42—Heating or cooling
- B29C51/421—Heating or cooling of preforms, specially adapted for thermoforming
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/0097—Glues or adhesives, e.g. hot melts or thermofusible adhesives
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2009/00—Layered products
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/722—Decorative or ornamental articles
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
- Y10T156/10—Methods of surface bonding and/or assembly therefor
- Y10T156/1002—Methods of surface bonding and/or assembly therefor with permanent bending or reshaping or surface deformation of self sustaining lamina
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24355—Continuous and nonuniform or irregular surface on layer or component [e.g., roofing, etc.]
Definitions
- the present invention relates to a molded article whose surface is coated with a film such as a decorative film.
- the present invention relates to automobile interior and exterior products, and molded products such as housings of home appliances such as refrigerators and information electronic devices such as personal computers and smartphones, the surfaces of which are coated with a decorative film.
- curable resin coatings such as melamine resins, isocyanate resins and urethane resins have been applied.
- hard coat paints such as UV curable acrylic resins are directly applied to home appliance housings to provide functions such as scratch resistance, durability, stain resistance, and design. I came.
- a decorative film having an adhesive layer on one side is pasted on the surface of a molded article such as an automobile part by vacuum forming or the like instead of direct coating of paint (for example, Patent Documents 1 to 3).
- a decorative film solves problems such as workability, environmental safety, and designability in direct coating, air between the surface of the molded product where the decorative film is applied and the decorative film.
- the surface of a molded article coated with a film hereinafter sometimes referred to as a coated molded article
- the appearance of the coated molded article is impaired. Even if the swelling is inconspicuous immediately after coating, the residual air will expand greatly when exposed to a high temperature environment, and this will cause a noticeable loss of appearance. Met.
- Patent Documents 4 and 5 a method of forming a communication groove or a deaeration passage in the adhesive layer of the decorative film has been proposed (for example, Patent Documents 4 and 5).
- An object of the present invention is a molded article having a substrate and having a surface coated with a film, having a good appearance, and having an appearance that is not impaired even under severe use environment such as a high temperature environment. Is to provide.
- the present inventor has found that the above problems can be solved by controlling the surface roughness of the substrate to be coated with the film within a specific range, and has completed the present invention.
- the present invention is a molded article having a substrate, a part or all of the surface of which is coated with a film, the film having an adhesive layer, the adhesive layer being in contact with the substrate,
- the surface roughness (A) of the surface in contact with the adhesive layer of the substrate is 3 to 20 ⁇ m.
- this invention provides the manufacturing method of the said molded article.
- the molded article coated with the film of the present invention has an excellent surface appearance because there is no air remaining between the film and the substrate, and the appearance is impaired even under severe use environment such as high temperature environment. It exhibits excellent durability.
- the molded article of the present invention has a substrate and a part or all of its surface is coated with a film.
- the film has a base material layer and an adhesive layer, and the base material is covered by the adhesive layer being in contact with the base material.
- the molded product of the present invention requires that the surface roughness (A) of the substrate surface in contact with the adhesive layer of the film is 3 to 20 ⁇ m, preferably 6 to 15 ⁇ m. Since the surface roughness (A) of the substrate surface is in the above range, when the film is applied to the substrate surface, the air between the substrate surface and the film is not sufficiently removed and remains, so that the obtained molding is obtained.
- the product has a good appearance, and the good appearance is not impaired even when exposed to a high temperature environment.
- the surface roughness (A) is less than 3 ⁇ m, a sufficient air escape effect cannot be obtained.
- the surface roughness (A) exceeds 20 ⁇ m, the shape of the substrate surface will appear as a concavo-convex pattern on the surface of the coated film, impairing the appearance, and the adhesion between the film and the substrate will be reduced. Furthermore, air tends to remain between the film and the substrate, and swelling tends to occur in a high temperature environment.
- substrate is arbitrary, may be smooth and may have a larger surface roughness.
- the surface roughness in this specification is a maximum height average (Rtm).
- the maximum height average is obtained by extracting a portion of the measurement length L from the roughness curve in the direction of the center line, dividing the measurement length L into five equal parts, and averaging the maximum heights of each section divided into five equal parts. It is the value.
- the material of the base is not particularly limited as long as it is normally used for automobile parts, home appliance housings, and the like. Coating of decorative surfaces on the surfaces of automobile parts, home appliances, etc. is usually performed by a vacuum forming method or a vacuum / pressure forming method. Therefore, the material of the substrate is generally capable of withstanding such a forming method.
- metal materials such as aluminum alloys and magnesium alloys, polystyrene resins, acrylic resins, acrylic-styrene resins, acrylic-butadiene-styrene resins, polycarbonate resins, polyester resins, polyamide resins, polypropylene resins
- One or more resin materials selected from polyethylene resins and the like can be appropriately selected.
- a substrate having a desired shape can be obtained by drawing or the like, and when the substrate is a resin material, a substrate having a desired shape can be obtained by injection molding or the like.
- the surface of the substrate thus obtained is smooth and the surface roughness is less than 3 ⁇ m.
- a substrate having a desired shape is roughened so that it has a specific surface roughness (A).
- the method for roughening is not particularly limited. Examples of the method for directly roughening the surface of the substrate include methods such as sandblasting, sanding, etching, embossing and matting. Also, when the base is obtained by injection molding or die casting, the surface of the mold is transferred by using a mold whose surface is roughened by a method such as sandblasting, sanding or etching. And a method of roughening the surface of the substrate.
- the molded article of the present invention can be obtained by sticking a film so that the adhesive layer of the film is in contact with the surface of the substrate.
- the surface roughness (B) of the adhesive layer of the film before pasting is preferably 3 to 20 ⁇ m, more preferably 6 to 15 ⁇ m.
- the surface roughness (B) is in the above range, a good air removal effect can be obtained when the film is attached to the substrate, and the adhesiveness and durability are maintained well. If the surface roughness (B) is less than 3 ⁇ m, a sufficient air escape effect may not be obtained.
- the surface shape of the adhesive layer may appear as a concavo-convex pattern on the surface of the coated film, which may impair the appearance.
- the adhesiveness between the film and the substrate tends to decrease.
- air tends to remain between the film and the substrate, and swelling tends to occur in a high temperature environment.
- Examples of the method for controlling the surface roughness of the adhesive layer include a method of roughening the release surface of the release film and transferring it to the adhesive layer.
- a method of obtaining a release film with a roughened release surface the surface of the base film for the release film is roughened by a method such as sandblasting, sanding, etching, embossing and matte coating, and then a release agent is used.
- Examples thereof include a method of applying, a method of applying a release agent to the surface of a base film for a release film, drying and curing, and then roughening by embossing.
- a method of directly embossing the surface of the adhesive layer can be mentioned immediately before film coating molding by vacuum molding or the like.
- the material constituting the adhesive layer may be any material as long as it exhibits sufficient adhesion and adhesive strength to the substrate and the film base layer.
- conventional adhesives and adhesives such as acrylic, ethylene vinyl acetate, vinyl acetate, polyester, polyurethane, natural rubber, epoxy resin, polyisobutylene, chloroprene rubber, styrene butadiene rubber, etc. It can be used.
- the adhesive layer needs to have a softness that can be sufficiently deformed so that air does not remain between the film and the substrate, and unnecessary flow or the like may occur. It must be hard enough not to wake up.
- an adhesive having a glass transition point of ⁇ 10 to 50 ° C.
- both the pressure-sensitive adhesive and the adhesive preferably have a viscosity of 5 to 30 Pa ⁇ s (25 ° C.).
- the adhesive Byron 50AS manufactured by Toyobo Co., Ltd. can be suitably used, and as the adhesive, SK Dyne 1309 manufactured by Soken Chemical Co., Ltd. can be preferably used.
- the film has a base material layer in addition to the adhesive layer.
- the material constituting the base material layer include polyvinyl chloride resin, non-crystalline, low-crystalline or crystalline polyester, polyolefin such as polypropylene and polyethylene, acrylonitrile-butadiene-styrene copolymer resin (ABS resin), Styrene resins such as styrene / ethylene / butadiene / styrene copolymer, acrylonitrile / styrene / acrylic copolymer resin, acrylonitrile / ethylene-propylene-diene / styrene copolymer resin and hydrogenated products thereof, polyamide, acrylic, polycarbonate, polyurethane
- a thermoplastic resin film and a resin composition film containing two or more of these thermoplastic resins include non-stretched films, uniaxially stretched films, and biaxially stretched films.
- Polyvinyl chloride resin, non-crystalline polyester resin, and unstretched film of acrylic resin are particularly preferred because of their suitability for vacuum forming and vacuum / pressure forming.
- As the polyvinyl chloride resin film S12109 Fc1174 manufactured by Riken Technos Co., Ltd., as the amorphous polyester resin film, FET 101 manufactured by Riken Technos Co., Ltd., and as the acrylic resin film, Technoloy S001G manufactured by Sumitomo Chemical Co., Ltd. can be preferably used.
- the molded article of the present invention is preferably produced by coating the surface of the substrate with the film by a vacuum forming method or a vacuum / pressure forming method.
- FIG. 1A An example of the vacuum forming method is shown in FIG.
- the film (1) is heated and softened by an infrared heater (2) or the like. Subsequently, the softened film (1) is removed from the infrared heater (2) and quickly coated on the substrate (3) (FIG. 1 (b)). Thereafter, the space (4) between the film (1) and the substrate (3) is reduced in pressure to bring the film (1) into close contact with the substrate (3) to obtain a molded article (5) covered with the film ( FIG. 1 (c)).
- the pressure in the space (4) is preferably 10 KPa or less, more preferably 1 KPa or less.
- the film (1) and the substrate (3) can be brought into close contact with each other, so that no air remains between the film and the substrate. If the pressure in the space (4) is higher than the above range, air tends to remain between the substrate and the film. The adhesion force increases as the pressure in the space (4) decreases. However, considering the fact that it is costly to reduce the pressure and the mechanical strength of the substrate and the film, practically, The lower limit of the pressure in the space (4) is about 10 ⁇ 5 KPa.
- FIG. 2 is a diagram illustrating an example of a vacuum / pressure forming method.
- vacuum / pressure forming first, the film (1) is placed in the center of the molding chamber, the base (6) is placed in the lower center, the chamber is sealed, and the upper chamber (7) and the lower chamber (8) are the same.
- the pressure is reduced at a reduced pressure (FIG. 2 (a)).
- the pressure in the upper chamber (7) and the lower chamber (8) at this time is preferably 10 KPa or less, more preferably 1 KPa or less, as in vacuum forming.
- the film (1) When the pressure is sufficiently reduced, the film (1) is heated and softened by a heater (9) such as an infrared ray, and then the sufficiently softened film (1) and the substrate (6) are brought into contact with each other (FIG. 2 (b)). .
- the lower chamber (8) is kept under reduced pressure, and only the upper chamber (7) is brought to atmospheric pressure or higher so that the film (1) and the substrate (6) are sufficiently adhered (FIG. 2 (c)).
- a coated molded article (10) is obtained (FIG. 2 (d)).
- the pressure in the upper chamber (7) in FIG. 2 (c) is preferably 100 to 1000 KPa, more preferably 150 to 500 KPa.
- the film (1) and the substrate (6) can be sufficiently adhered to each other, and therefore no air remains between the film and the substrate.
- the pressure in the upper chamber (7) is smaller than the above range or the pressure in the lower chamber (8) is larger than 10 KPa, air remains between the substrate and the film. It becomes easy.
- the pressure in the upper chamber (7) is larger than the above range, the substrate and the film may be damaged during vacuum / pressure forming.
- the adhesion force increases as the pressure in the lower chamber (8) decreases.
- the lower limit of the pressure in the lower chamber (8) is about 10 ⁇ 5 KPa.
- the molded product and the production method of the present invention include an automotive instrument panel whose surface is covered with a film for the purpose of surface protection and design impartation, automotive exterior resin parts such as window pillars and bumpers, a television housing,
- the present invention can be applied to a case of an information electronic device such as a personal computer or a smartphone.
- glass beads J-220 (with an air pressure of 0.3 MPa and an angle of 30 to 60 °, using a blast machine (Myblast MY-30D (trade name)) manufactured by Shinto Kogyo Co., Ltd. A central particle size of 75 to 45 ⁇ m) was sprayed.
- the spraying time was appropriately adjusted in the range of about 1 to 20 seconds so that the surface of the substrate had a predetermined surface roughness.
- the substrate was sufficiently washed with water and dried to obtain a resin substrate (A) having a predetermined surface roughness (A).
- metal substrate Aluminum plate (A5052 (trade name), thickness 2 mm) manufactured by Nippon Light Metal Co., Ltd. using a press machine (OBS80S (trade name)) manufactured by Komatsu Industries Co., Ltd.
- OBS80S Japanese Industrial Standard
- the metal substrate having the same shape as the substrate (a) was obtained. Glass beads were sprayed on the surface of the substrate in the same manner as the resin substrate to obtain a metal substrate (A) having a predetermined surface roughness (A).
- Manufacture of film (1) Manufacture of film ( ⁇ 0 ) having acrylic adhesive layer Acrylic adhesive (SK Dyne 1309 (trade name), composition: acrylic acid and acrylate ester) and Soken Chemical A curing agent (L-45, composition: tolylene diisocyanate) manufactured by the company was mixed at a weight ratio of 1000: 6: 100: 100 together with toluene and ethyl acetate as solvents, and stirred well at room temperature for 2 minutes. This mixture was applied to a release film (Therapel WZ (trade name), thickness 38 ⁇ m) manufactured by Toray Film Processing Co., Ltd. and dried at 100 ° C. for 2 minutes to obtain a pressure-sensitive adhesive layer having a thickness of 30 ⁇ m.
- Acrylic adhesive SK Dyne 1309 (trade name), composition: acrylic acid and acrylate ester) and Soken Chemical A curing agent (L-45, composition: tolylene diisocyanate) manufactured by the company was mixed at a weight ratio of 1000: 6:
- a cyclohexanedimethanol copolymerized polyethylene terephthalate film (PETG resin film, SET329 FZ26401 (trade name), thickness 100 ⁇ m) of Riken Technos Co., Ltd. as a base material layer is bonded.
- a film ( ⁇ 0 ) having a layer was obtained.
- the pressure-sensitive adhesive had a glass transition point of ⁇ 25 ° C. and a viscosity of 10 Pa ⁇ s (25 ° C.). Moreover, the surface roughness of the surface which has contact
- a catalyst tetrabutyl titanate
- the obtained thermoplastic saturated copolymer polyester resin was dissolved in a solvent (methyl ethyl ketone) to obtain a solution having a solid content of 30% by mass.
- a molded product having the surface of the substrate coated with a film was obtained by the vacuum forming method shown in FIG. 1 or the vacuum / pressure forming method shown in FIG.
- the obtained molded article was allowed to stand at room temperature for 24 hours or more, and then subjected to the following test.
- the results are shown in Table 1 together with the substrate, film and molding method used.
- the pressure in the lower chamber (8) and the pressure in the upper chamber (7) in the case of the vacuum / pressure forming method are those in FIG. 2 (c).
- the molded article according to the present invention is excellent in appearance, adhesiveness and heat resistance.
- the molded products of Comparative Examples 1, 3 and 5 in which the surface roughness (A) of the substrate is less than the lower limit of the present invention are inferior in appearance and heat resistance, and the surface roughness (A) exceeds the upper limit of the present invention.
- the molded products of Comparative Examples 2, 4 and 6 were inferior in appearance, adhesiveness and heat resistance.
- Example 24 since the pressure in the upper chamber (7) in vacuum / pressure forming was as high as 1300 KPa, the substrate of the obtained molded product was deformed.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Quality & Reliability (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Manufacturing & Machinery (AREA)
- Laminated Bodies (AREA)
- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
Abstract
Description
基体の製造
(1)樹脂製基体(ア)の製造
テクノポリマー株式会社製のABS/PCアロイ樹脂(エクセロイ(商品名)CK50)を温度100℃で4時間かけて予備乾燥した後、三菱重工プラスチックテクノロジー株式会社製の100トン射出成形機S-2000i 100Aを使用して、シリンダー温度260℃、金型温度70℃、射出速度250mm/sec、保持圧50MPaにて射出成形を行い、図3に示す形状の熱可塑性樹脂製の基体を得た。図3は、実施例1の成形品を写真撮影したものである。この基体の表面に、新東工業株式会社製のブラスト機(マイブラストMY-30D(商品名))を用いて、空気圧0.3MPaおよび角度30~60°の条件で、ガラスビーズJ-220(中心粒度75~45μm)を噴き付けた。噴き付け時間は、基体の表面が所定の表面粗さになるように1~20秒程度の範囲で適宜調節した。噴き付けた後、基体を十分に水洗し、乾燥させて、所定の表面粗さ(A)を有する樹脂製基体(ア)を得た。
コマツ産機株式会社製のプレス機(OBS80S(商品名))を使用して、日本軽金属株式会社製のアルミ板(A5052(商品名)、厚み2mm)の絞り加工を行い、基体(ア)と同様の形状を有する金属製の基体を得た。この基体の表面に、上記樹脂製基体と同様の方法でガラスビーズを噴き付けて所定の表面粗さ(A)を有する金属製基体(イ)を得た。
上記で得られた樹脂製および金属製の基体の表面粗さ(A)(最大高さ平均(Rtm))を、株式会社東京精密製の粗度計(ハンディサーフE-40A)を用いて測定した。後述するフィルムの表面粗さ(B)(最大高さ平均(Rtm))についても同様に測定した。
(1)アクリル系粘着剤層を有するフィルム(α0)の製造
綜研化学社製のアクリル系粘着剤(SKダイン1309(商品名)、組成:アクリル酸及びアクリル酸エステル)および綜研化学社製の硬化剤(L-45、組成:トリレンジイソシアネート)を、溶剤としてのトルエンおよび酢酸エチルと共に1000:6:100:100の重量比で混合し、室温にて2分間よく攪拌した。この混合物を、東レフィルム加工社製の剥離フィルム(セラピールWZ(商品名)、厚み38μm)に塗布し、100℃にて2分間乾燥させて厚み30μmの粘着剤層を得た。この粘着剤層の上に、基材層としての、リケンテクノス株式会社のシクロヘキサンジメタノール共重合ポリエチレンテレフタレートフィルム(PETG樹脂フィルム、SET329 FZ26401(商品名)、厚み100μm)を貼り合わせて、アクリル系粘着剤層を有するフィルム(α0)を得た。なお、粘着剤のガラス転移点は-25℃、粘度は10Pa・s(25℃)であった。また、粘着剤層の剥離フィルムと接している面の表面粗さは、2μmであった。
上記(1)のフィルムの製造において、剥離フィルムとして、その表面が以下のように処理されたユニチカ株式会社製エンブレットS100を使用した以外は、上記フィルムの製造と同様にして、アクリル系粘着剤層を有し、かつ粘着剤層の剥離フィルムと接している面が種々の表面粗さを有するフィルム(α)を得た。剥離フィルムは、上記エンブレットS100の表面に、新東工業株式会社製のブラスト機(マイブラストMY-30D)を用いて空気圧0.3MPaおよび角度30~60°の条件でガラスビーズJ-220(中心粒度75~45μm)を噴き付け、水洗後乾燥し、上記表面をシリコーン処理したものである。噴き付け時間は、剥離フィルムの粘着剤層と接する面が所定の表面粗さ(B)になるように1~20秒程度の範囲で適宜調節した。
上記(2)のフィルムの製造において、アクリル系粘着剤層に代えて、下記のポリエステル系接着剤層を使用した以外は、上記(2)のフィルムの製造と同様にして、ポリエステル系接着剤層を有するフィルム(β)を得た。上記接着剤層は、以下のようにして得た。酸成分としてのテレフタル酸、イソフタル酸およびアジピン酸を30:30:40のモル比で有し、グリコール成分としての1,4-ブタンジオールおよび1,6-ヘキサンジオールを25:75のモル比で有するように、これらの化合物を適当量配合し、触媒(テトラブチルチタネート)の存在下で加熱して、熱可塑性飽和共重合ポリエステル樹脂を合成した。得られた熱可塑性飽和共重合ポリエステル樹脂を溶剤(メチルエチルケトン)に溶解し、固形分30質量%の溶液とした。この溶液にポリイソシアネート(日本ポリウレタン工業株式会社製、「コロネートHX」(ヘキサメチレンジイソシアネート)、固形分100%)を2当量加え、室温にて2分間よく攪拌した。この混合物を、上記(2)と同様の剥離フィルムに塗布して厚み30μmの接着剤層を得た。なお、ガラスビーズの噴き付け時間は、接着剤層の、剥離フィルムと接する面の表面粗さ(B)が13μmになるように調節した。また、接着剤のガラス転移点は23℃、粘度は25Pa・s(25℃)であった。
(1)外観性
成形品のフィルム表面の外観を下記の評価基準にしたがって目視評価した。
○:膨れや凹凸が認められない。
△:極僅かな膨れや凹凸が認められる。
×:指で触れて引っかかる程度の大きな膨れや凹凸が認められる。
成形品のフィルム表面に100×25mmの切り込みを入れ、一方の端部を引き剥がし、この端部と成形品の端部をA&D製テンシロンRTG-1310引張試験機のチャックに固定し、引張速度300mm/minで剥離強度を測定した。
○:剥離強度が30N/25mm以上
△:剥離強度が20N/25mm以上30N/25mm未満
×:剥離強度が20N/25mm未満
成形品を100℃のギヤーオーブンに168時間放置した後に取り出し、更に室温で1時間以上放置した後、成形品の外観を下記の評価基準にしたがって目視評価した。
○:成形品に膨れや凹凸などが認められない。
△:成形品に極軽微な膨れや凹凸などが認められる。
×:成形品に指で触れて引っかかる程度の大きな膨れや凹凸が認められる。
2 ヒーター
3 基体
4 フィルムと基体との間の空間
5 成形品
6 基体
7 上室
8 下室
9 ヒーター
10 成形品
Claims (4)
- 基体を有し、その表面の一部又は全部がフィルムで被覆された成形品であって、該フィルムは接着層を有し、該接着層が該基体と接しており、該基体の該接着層と接している面の表面粗さ(A)が3~20μmであるところの前記成形品。
- 請求項1記載の成形品を製造する方法であって、前記基体の表面の一部または全部を前記フィルムで被覆する工程を含み、該被覆の前におけるフィルムの接着層の該基体と接する面の表面粗さ(B)が3~20μmである、前記方法。
- 請求項1記載の成形品を製造する方法であって、前記基体の表面の一部または全部を前記フィルムで被覆する工程を含み、該被覆が真空成形または真空圧空成形によって行われる、前記方法。
- 前記被覆が真空成形または真空圧空成形によって行われる、請求項2記載の方法。
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KR1020137033487A KR101802556B1 (ko) | 2011-07-12 | 2011-07-12 | 필름으로 피복된 성형품 |
US14/131,516 US20140147630A1 (en) | 2011-07-12 | 2011-07-12 | Molded article coated with a film |
PCT/JP2011/065911 WO2013008318A1 (ja) | 2011-07-12 | 2011-07-12 | フィルムで被覆された成形品 |
CN201180072231.8A CN103826827B (zh) | 2011-07-12 | 2011-07-12 | 用膜覆盖而成的成形品 |
JP2013523741A JP5777714B2 (ja) | 2011-07-12 | 2011-07-12 | フィルムで被覆された成形品の製造法 |
US14/848,735 US10369770B2 (en) | 2011-07-12 | 2015-09-09 | Molded article covered with film |
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US14/848,735 Division US10369770B2 (en) | 2011-07-12 | 2015-09-09 | Molded article covered with film |
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EP (1) | EP2732952B1 (ja) |
JP (1) | JP5777714B2 (ja) |
KR (1) | KR101802556B1 (ja) |
CN (1) | CN103826827B (ja) |
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WO (1) | WO2013008318A1 (ja) |
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CN103754404A (zh) * | 2014-01-30 | 2014-04-30 | 王金龙 | 一种表面包覆方法及装置 |
EP2942181A1 (de) * | 2014-05-06 | 2015-11-11 | AHa! Thermoforming GmbH | Verfahren zum verhauten von schaumteilen mit einer kunststofffolie und der hergestellte schaumteil |
JP2017007242A (ja) * | 2015-06-24 | 2017-01-12 | 株式会社浅野研究所 | 熱成形装置及び熱成形方法 |
JP6097419B1 (ja) * | 2015-11-27 | 2017-03-15 | 遠東科技大学Far East University | 射出成形方法 |
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JP2019111836A (ja) * | 2019-04-22 | 2019-07-11 | 株式会社浅野研究所 | 熱成形装置及び熱成形方法 |
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Cited By (9)
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CN103754404A (zh) * | 2014-01-30 | 2014-04-30 | 王金龙 | 一种表面包覆方法及装置 |
EP2942181A1 (de) * | 2014-05-06 | 2015-11-11 | AHa! Thermoforming GmbH | Verfahren zum verhauten von schaumteilen mit einer kunststofffolie und der hergestellte schaumteil |
JP2017007242A (ja) * | 2015-06-24 | 2017-01-12 | 株式会社浅野研究所 | 熱成形装置及び熱成形方法 |
JP6097419B1 (ja) * | 2015-11-27 | 2017-03-15 | 遠東科技大学Far East University | 射出成形方法 |
JP6097418B1 (ja) * | 2015-11-27 | 2017-03-15 | 遠東科技大学Far East University | 射出成形機及びそれに用いる表面加飾金型 |
JP2017094701A (ja) * | 2015-11-27 | 2017-06-01 | 遠東科技大学Far East University | 射出成形機及びそれに用いる表面加飾金型 |
JP2017094702A (ja) * | 2015-11-27 | 2017-06-01 | 遠東科技大学Far East University | 射出成形方法 |
JP2019042927A (ja) * | 2017-08-29 | 2019-03-22 | 共和レザー株式会社 | 加飾成形体及び加飾成形体の製造方法 |
JP2019111836A (ja) * | 2019-04-22 | 2019-07-11 | 株式会社浅野研究所 | 熱成形装置及び熱成形方法 |
Also Published As
Publication number | Publication date |
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KR101802556B1 (ko) | 2017-11-28 |
KR20140034233A (ko) | 2014-03-19 |
EP2732952B1 (en) | 2017-03-01 |
CN103826827A (zh) | 2014-05-28 |
US20150375443A1 (en) | 2015-12-31 |
EP2732952A4 (en) | 2015-04-15 |
US10369770B2 (en) | 2019-08-06 |
EP2732952A1 (en) | 2014-05-21 |
JPWO2013008318A1 (ja) | 2015-02-23 |
US20140147630A1 (en) | 2014-05-29 |
JP5777714B2 (ja) | 2015-09-09 |
CN103826827B (zh) | 2016-04-27 |
ES2625793T3 (es) | 2017-07-20 |
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