JP2013252652A - Card having texture of metal and method of manufacturing the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method of manufacturing a card that expresses metallic luster in the same manner as a texture of an actual metal surface, and can achieve decrease of manufacturing time by evading an influence of adding heat to a card base material by vapor deposition happened when forming a metal vapor deposition layer on a card base material directly.SOLUTION: There is provided a method for manufacturing a card that has the texture of the metal and contains: a process to prepare a card base material provided with a concealing layer on at least one surface, and a transfer film in which a metal vapor deposition layer is formed on a base film; a process to transcribe the metal vapor deposition layer by making the metal vapor deposition layer contact the transfer film on the concealing layer and applying the heating pressure; and a process to form a printing layer and a protective layer on the metal vapor deposition layer sequentially.

Description

  The present invention relates to a card such as an IC card or a magnetic card excellent in decorativeness, and more particularly to a card having a high design property in which a metal texture is expressed and a method for manufacturing the same.

Conventionally, cards such as an IC card and a magnetic card are used in various fields such as a cash card, a credit card, a point card, a membership card, an employee card, a student card, a license card, and an ID card.
In recent years, as the use of cards has expanded, cards having excellent design properties have been demanded, and in particular, cards with a metallic-like high-class feeling have attracted attention.

As a card having a metallic tone, a method using a metal vapor deposition film and a method using printing of ink containing a fine metal powder are conventionally known, and products utilizing each feature have been proposed.
As an example using a vapor deposition film, Patent Document 1 discloses that a vapor deposition PET film provided with an aluminum vapor deposition layer on a plastic card is pressure-bonded via an adhesive to laminate a transparent PVC film on the laminate sheet. And the decoration card manufactured by heat-pressing with the metal mold | die which formed the fine embossed pattern from the top is proposed.

  In this way, a fine embossed pattern can be sharply formed at a low temperature and low pressure, and a decorative card having a high design with a deep three-dimensional appearance can be obtained by the metallic luster of the lower aluminum vapor deposition layer. be able to.

  The problem with this method is that when it is deposited on the base material or film constituting the card, heat shrinkage occurs and deformation occurs, and in order to form a metal layer with a sufficient film thickness, the tact time is increased. Can be mentioned.

Moreover, as an example of what printed the reflective layer with inorganic inks, such as metal powder, the following methods proposed by Japanese Patent Application No. 2011-125589 (unpublished) can be mentioned.
Here, as a high-design card having a metal-like texture subjected to hairline processing, a card substrate composed of a single layer or a card substrate composed of one or more core substrates and an exterior substrate, and a card substrate A card having a metal thin film layer containing metal particles and a resin, and having a film-like protective layer on the metal thin film layer, wherein the metal thin film layer is partially aligned with a flat portion in a certain direction. Proposed is a card made of a resin having a convex portion or a concave portion, and the resin contained in the metal thin film layer is a curable resin or a glass transition point higher by 10 ° C. than the film-like protective layer. ing.

  The problem with conventional cards with metallic luster that attempts to express the texture of the metal by printing ink mixed with fine metal particles in a solvent is as follows. Due to the difference, the actual metal surface could not be expressed, and there was a limit to expressing the metal texture faithfully.

  From the above circumstances, the metallic luster is expressed in the same way as the actual texture of the metal surface, and the influence of heat applied to the card base material by vapor deposition that occurs when a metal vapor deposition layer is directly formed on the card base material is avoided. Thus, there has been a demand for a method of manufacturing a card that can realize a reduction in manufacturing time.

Japanese Utility Model Publication No. 2011-125598

  The purpose of the present invention is to express the influence of heat applied to the card substrate by vapor deposition that occurs when the metal gloss is expressed in the same way as the texture of the actual metal surface and the metal vapor deposition layer is directly formed on the card substrate. It is to propose a method of manufacturing a card that can avoid the manufacturing time and avoid it.

  The invention according to claim 1 of the present invention comprises a step of preparing a card substrate provided with a concealing layer on at least one surface, a transfer film having a metal vapor deposition layer formed on a base film, and a transfer film on the concealing layer. It has a metal texture characterized by including a step of transferring a metal vapor deposition layer by bringing the metal vapor deposition layer into contact and thermocompression bonding, and a step of sequentially forming a printing layer and a protective layer on the metal vapor deposition layer. It is a manufacturing method of a card.

  The invention according to claim 2 of the present invention is the card manufacturing method according to claim 1, wherein the concealing layer is formed of a pigment ink containing a metal material.

  The invention according to claim 3 of the present invention is characterized in that a concealing layer formed of a pigment containing a metal material, a metal vapor deposition layer, a printing layer, and a protective layer are provided in this order on at least one surface of the card substrate. It is a card having a metal texture.

According to the present invention, since the metallic luster is reproduced by the metal vapor deposition layer, the texture of the actual metal itself can be expressed.
Furthermore, by laminating the metal vapor deposition layer on the card base material by transfer, it is possible to reduce the addition of heat to the card base material by vapor deposition and reduce the production time than the conventional method of directly forming the metal vapor deposition layer on the card base material. Reduction can be achieved.

It is a cross-sectional schematic diagram which shows an example of the laminated constitution of the card | curd of this invention. It is a cross-sectional schematic diagram which shows an example of the manufacturing method of the card | curd of this invention. It is a section schematic diagram showing other examples of the layer composition of the card of the present invention.

Hereinafter, the present invention will be described in detail with reference to the drawings as necessary.
FIG. 1 is a schematic sectional view showing an example of a layer structure of a card having a metal texture according to the present invention. As shown in FIG. 1, the card of the present invention comprises a card substrate (2) comprising a core substrate (4) and exterior substrates (5a) and (5b) and provided with a magnetic tape (6), and a card substrate. The metal vapor deposition layer (9) is formed on the concealing layer (10) on one side of (2), and the printing layer (11) and the protective layer (12) are formed on the metal vapor deposition layer (9). A card (100) having a metallic texture.

  FIG. 3 is a schematic sectional view showing the layer structure of another example of the card of the present invention. In the embodiment of FIG. 3, a card base (2) comprising a core base (4) and exterior bases (5a) and (5b) and provided with a magnetic tape (6), and a card base (2) A metal vapor-deposited layer (9) is formed on both sides of the concealing layer (10), and a printed layer (11) and a protective layer (12) are formed on the metal vapor-deposited layer (9). It is a card | curd (101) which has the texture of.

The card manufacturing method of the present invention includes a step of preparing a card base material provided with a concealing layer on at least one surface, a transfer film in which a metal vapor deposition layer is formed on a base film, and metal vapor deposition of a transfer film on the concealment layer. A method for producing a card having a metallic texture, comprising: a step of contacting a layer and thermocompression bonding to transfer a metal vapor deposition layer; and a step of sequentially forming a printed layer and a protective layer on the metal vapor deposition layer.

FIG. 2 is a schematic cross-sectional view showing a process of transferring the metal vapor deposition layer by bringing the metal vapor deposition layer of the transfer film into contact with the concealing layer and applying heat and pressure. A card substrate (2) provided with a concealing layer (10) on one side and a transfer film (3) formed with a metal vapor-deposited layer (9) on the base film (7) are prepared, and the concealing layer (10) is provided on the concealing layer (10). The state before the thermocompression bonding which accumulated the metal vapor deposition layer (9) of the transfer film (3) is shown.
A card having the metal texture of the layer structure shown in FIG. 1 by sequentially forming the printed layer (11) and the protective layer (12) from the metal vapor-deposited layer (9) of the laminate thus heat-pressed. (100) is obtained.

  As the card base material (2) used for the card having a metal texture of the present invention, a card base material composed of a white or light transmissive single layer, or one or more white or light transmissive core base materials (4 ) And a white or light-transmitting exterior base material (5a), (5b) can be used. When a magnetic tape is provided, a plurality of base materials are laminated and the magnetic tape (6) is formed by thermocompression bonding.

  Materials used for the core substrate (4) or the exterior substrate (5a), (5b) of the card substrate (2) include polyvinyl chloride resin, vinyl chloride-vinyl acetate copolymer resin, terephthalic acid and cyclohexane di A copolymer resin of methanol and ethylene glycol, or an amorphous polyester resin comprising a polymer alloy of the aforementioned copolymer and a polycarbonate and / or polyarylate, a polyethylene terephthalate resin such as PET-G, a polybutylene terephthalate resin, Acrylonitrile-butadiene-styrene copolymer resin, paper material, impregnated paper material and the like can be used.

The concealing layer (10) provided on the surface of the card base (2) used for the card having a metal texture of the present invention conceals the magnetic tape (6), and an ink containing a concealing pigment is used for the card base. (2) It can be formed by coating on.
In order to more effectively express the texture of the metal, the metal vapor deposition layer (9) can be formed by using a pigment ink containing a metal material such as aluminum, iron, or tin so that the concealing layer (10) exhibits a metallic color. Even if it is thin, it is more preferable because necessary concealability and metal color can be secured.
The thickness of the masking layer (10) is preferably in the range of 1 μm to 2 μm. If it is thinner than 1 μm, the concealing effect is insufficient, and if it is thicker than 2 μm, it is excessive in terms of cost. The masking layer can be printed by a normal method such as screen printing.

The metal vapor deposition layer (9) used for the card | curd which has the metal texture of this invention should just be a metal which can be vapor-deposited which has the color of the metal which it is going to express. Examples of such a metal include tin, aluminum, and copper.
The thickness of the metal vapor deposition layer is preferably in the range of 10 nm to 100 nm. If it is less than 10 nm, the effect of metallic luster is lost, and if it exceeds 100 nm, it takes time to form a vapor deposition layer, and the unevenness of the film thickness increases.

The printing layer (11) used for the card having a metal texture according to the present invention can be applied to the ticket surface by a known method such as a pattern printing method such as offset printing.
The ink used for the printing layer (11) can also be a known offset ink or the like corresponding to the printing method. A curable ink such as a thermosetting type, a photocurable type, and an electron beam curable type may be used as necessary.

The protective layer (12) used for the card having a metal texture according to the present invention can be obtained by laminating or transferring a transparent acrylic resin film or the like onto the card surface on which the printed layer is formed.
The protective layer (12) may also be provided by coating or printing, but by using a film as the protective layer, it can be made more durable than a coating film or the like.

As the resin used for the film-like protective layer (12), a thermoplastic resin, a thermosetting resin, an ultraviolet curable resin, an electron beam curable resin, or the like can be used.
For example, vinyl chloride-vinyl acetate copolymer, polyvinyl alcohol, polyester resin, polyurethane resin, acrylic resin and copolymers thereof, polymer alloy, acrylic UV resin obtained by adding isocyanate to polyester polyol, and the like can be mentioned. However, this is not the case.
Further, an additive may be added to these resins. Examples of the additive include waxes such as polyethylene wax and PTFE (polytetrafluoroethylene) wax, mica, talc, and silica.
The surface roughness Ra on the surface side of the protective layer (12) is preferably 0.2 μm or less. Within this range, gloss can be obtained. The thickness of the protective layer is suitably about 0.5 μm to 5 μm.

Next, a method for producing a card having a metal texture according to the present invention will be described with reference to FIGS.
First, a card substrate (2) is prepared.
As the card substrate (2), a card substrate composed of a white or light transmissive single layer, or one or more layers of a white or light transmissive core substrate (4) and a white or light transmissive exterior substrate. A card substrate in which (5a) and (5b) are laminated can be used. When a magnetic tape is provided, a plurality of base materials are laminated and the magnetic tape (6) is formed by thermocompression bonding.
The concealing layer (10) can be formed on the card base (2) by applying an ink containing a pigment on the card base (2).
Next, if necessary, a release layer (8) is provided on the base film (7), and a metal vapor deposition layer (9) is formed by vapor deposition to produce a transfer film (3).

As the base film (7) of the transfer foil (3), a polyethylene terephthalate (PET) film, polybutylene terephthalate (PBT), polyethylene (PE), polypropylene (PP), polycarbonate, or polyimide film can be used.
In particular, it is preferable to use a crystalline biaxially stretched PET film.

A release layer (8) may be provided on the base film (7), or the base film (7) itself may have peelability.
As the release layer (8), urethane resin, melamine resin, fiber-based resin, epoxy resin, acrylic resin, butyral resin, vinyl chloride / vinyl acetate copolymer resin, and the like can be used. Preference is given to using methyl methacrylate. Moreover, a wax etc. can be used as needed. Further, the thickness of the release layer is preferably 10 μm or less, and more preferably in the range of 1 μm to 3 μm.

  Furthermore, as shown in FIG. 2, a metal film layer (9) is provided on the release layer (8) on the base film (7) or the base film (7) by a known vapor deposition method to produce a transfer film (3). . Moreover, you may provide the contact bonding layer (not shown) for transcription | transfer on a metal vapor deposition layer.

Next, as shown in FIG. 2, the metal vapor deposition layer (9) is transferred from the transfer film (3) to the card substrate (2).
As a transfer method, a thermal transfer method can be used.
Heating and pressurization in this thermal transfer can be performed under conditions of about 80 ° C. to 180 ° C., 1.0 MPa to 50 MPa, and 1 min to 30 min by linear pressure or surface pressure using a press plate or roll.
At this time, as the base film (7), a crystalline resin base material, or a resin base material having a glass transition temperature higher by 10 ° C. or more than the glass transition temperature of a single-layer card base material or an exterior base material is used. It is preferable.
By doing in this way, since a base film (7) does not soften at the time of thermal transfer, it can transfer to a card base material (2), without a metal vapor deposition layer collapsing.

Next, the base film (7) is peeled off. When the release layer (8) is used, although not shown, the release layer remains on the transferred metal vapor deposition layer side.

Then, a protective layer (12) is provided on the transferred metal vapor deposition layer (9).
The protective layer (12) can be formed by transfer, and a transfer foil (not shown) in which a film-like protective layer and an adhesive layer are formed on the support on which the release layer (9) is formed or the peelable support. It can be formed by preparing and transferring to the card substrate (2).
Further, a printed layer (11) such as a picture can be provided outside the adhesive layer.
As means for providing the adhesive layer and the printing layer, known printing methods such as gravure printing, flexographic printing, screen printing, and offset printing can be used, but are not limited thereto.

The transfer of the protective layer (12) to the card substrate (2) can be formed by laminating the transfer foil to the card substrate, applying hot pressure with a press, and then peeling. As the transfer method, a thermal transfer method can be used, and an adhesive suitable for each can be used.
Further, the surface may be smoothed simultaneously with the pressing. The pressing conditions can be 100 to 160 ° C., 1.0 to 3.0 MPa, and 1 to 30 minutes.

The card having a metal texture according to the present invention may have a function as a contact and non-contact IC card.
In the case of a non-contact IC card, a structure in which an inlet having an antenna and an IC chip is sandwiched using a plurality of core card base materials can be used.
When using a contact IC card, use an IC module with contact terminals embedded in the opening of the card base formed by counterboring on the outermost surface of the card base provided with a reflective layer or protective layer. Can do.

Further, the card having the metal texture of the present invention may have a magnetic function.
In the case of a magnetic card, a card base made of a single layer or a magnetic tape embedded in an exterior base can be used. For embedding the magnetic tape, for example, a well-known method of embedding by magnetic pressure after temporarily attaching the magnetic tape can be used.
Note that the thickness of the layer on the magnetic layer as viewed from the point of reading magnetic information is preferably 10 μm or less in total thickness.

Moreover, you may form a pattern layer further in the card | curd which has the metal texture of this invention. The pattern layer can be provided as appropriate between the uppermost layer and each layer.
As a method for forming the pattern layer, it can be formed using a known printing technique.
The card according to the present invention may be produced as a single sheet for each sheet, and is then separated into a predetermined card size by punching or cutting with a press using a multi-sided sheet base material. Also good.
The punching and cutting process by a press can be performed by a known method using a male / female die, a blade or the like. Finally, post-processing such as printing and embossing may be performed. These post-processing can be performed using known methods such as normal printing and embossing.

<Example 1>
A center core substrate (4) made of a 0.6 mm thick polyvinyl chloride resin material (Mitsubishi Resin, Tg 65 ° C. to 70 ° C.), and a 0.1 mm thick polyvinyl chloride resin material (Mitsubishi resin) 150 ° C. after temporarily attaching a magnetic tape (DS-705 manufactured by DIC Corporation) on the exterior substrate (5a) using the exterior substrates (5a) and (5b) made of Tg65 ° C. to 70 ° C. To obtain a laminate used as a card substrate.

As the ink for forming the concealing layer (10) on the surface of the laminate used for the card substrate, an ink comprising the following composition is used, and the concealing layer (10) is formed by gravure printing so that the film thickness after drying becomes 2 μm. To form a card substrate (2).
(Ink composition)
○ 25 parts by weight of resin Diamond Resin BR-80 (Mitsubishi Rayon, acrylic resin Tg 115 ° C)
○ 20 parts by weight of aluminum particles Metalure (ECKART-WERKE, average particle size 2 μm)
○ 55 parts by weight of solvent methyl ethyl ketone: toluene = 1: 1

  On the other hand, the transfer film (3) is a base film (7) made of a crystalline biaxially stretched PET film (made by Toray Industries, Inc.) having a thickness of 25 μm, and the release layer (8) is a varnish for TP253B card (Toyo Ink Co., Ltd.). After being coated and formed by gravure printing so that the film thickness becomes 1 μm after drying, a transfer film was created by depositing aluminum as a metal vapor deposition layer (9) to a thickness of 100 nm.

Next, using this transfer film (3), the aluminum vapor-deposited layer (9) was thermally transferred to the card substrate (2) by a laminate press at 120 ° C., 2.0 Mpa, 20 minutes.
Furthermore, a pattern printing layer (11) is formed by offset printing using a normal offset ink, and a V223 card lower varnish (Tg 75 ° C. to 80 ° C., manufactured by Toyo Ink Co., Ltd.) is used as a protective base layer (12). After coating and drying by gravure printing on the aluminum vapor deposition layer (9) of (2), a card having a metal texture of the present invention was made by punching to a predetermined size.

<Example 2>
A card having the metal texture of the present invention was prepared in the same manner as in Example 1 except that the ink for forming the concealing layer was changed to the following curable resin ink.
(Ink composition)
○ Ink FUN-COAT UV metamirror (Jujo Chemical; UV curing mirror ink)

<Comparative Example 1>
A card was prepared in the same manner as in Example 1 except that aluminum was directly evaporated on the surface of the concealing layer (10) side of the card substrate (2) as in Example 1 as a metal vapor deposition layer without using a transfer film. Created.

  When the surface state of the card created in Examples 1 and 2 and the card created in Comparative Example 1 was visually confirmed, the cards created in Example 1 and Example 2 were directly applied to the base material and film constituting the card. A card having a high-quality metallic texture without any deformation caused by heat shrinkage, which occurs when metal deposition is performed, was obtained without an increase in tact time, but the card created in Comparative Example 1 The high-quality feeling of the vapor deposition surface obtained by the smooth surface with large deformation due to heat shrinkage during metal vapor deposition has been impaired.

  INDUSTRIAL APPLICABILITY The present invention can be applied to cards with high design properties that require a metal texture expression in the card field such as IC cards and magnetic cards.

DESCRIPTION OF SYMBOLS 100 ... Card with metal texture 101 ... Card with metal texture 2 ... Card base material 3 ... Transfer film 4 ... Core base material 5a ... Outer base material 5b ... Outer base material 6 ... Magnetic tape 7 ... Base film 8 ... Release layer 9 ... Metal vapor deposition layer 10 ... Hiding layer 11 ... Print layer 12 ... Protective layer

Claims (3)

  A step of preparing a card base material provided with a concealing layer on at least one surface, a transfer film in which a metal vapor deposition layer is formed on the base film, and a metal vapor deposition layer of the transfer film are brought into contact with the concealment layer and subjected to thermocompression bonding. A method for producing a card having a metal texture, comprising: a step of transferring a metal vapor deposition layer; and a step of sequentially forming a printing layer and a protective layer from the metal vapor deposition layer.   The card manufacturing method according to claim 1, wherein the masking layer is formed of a pigment ink containing a metal material.   A card having a metallic texture, comprising a concealing layer formed of a pigment containing a metal material, a metal vapor deposition layer, a printing layer, and a protective layer in this order on at least one surface of a card substrate.

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