JP2002293069A - Identification card - Google Patents

Abstract

(57) [Problem] Similar to a conventional PVC-based identification card, JIS
Provided is an identification card which satisfies the embossment specified in X-6302 and the shape of a magnetic tape and has heat resistance of 90 ° C. or more. A card core material (12) comprising a single layer or multiple layers.
And the identification card in which the oversheets 11 arranged on both sides of the card core material are laminated, the card core material 1
2, the oversheet 11 disposed on both sides is a biaxially stretched polyethylene terephthalate film or a polyethylene naphthalate film with a thickness of 25 to 150 μm,
And a tensile strength of 250 MPa or less and a tensile elongation of 60
An identification card laminated with the card core material 11 by heat fusion or a heat-sensitive adhesive 13 with a film of at least%.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an identification card in which a single-layer or multi-layer card core material and an oversheet are laminated, and a biaxially stretched polyester resin film is used as the oversheet for magnetic recording, electronic information, embossing, etc. The present invention relates to an identification card provided with identification information.

[0002]

2. Description of the Related Art Conventionally, member cards, ID cards, process management cards, credit cards, cash cards, ICs
Cards and the like mainly use a vinyl chloride resin (PVC). Usually, many of these cards are provided with a magnetic tape capable of magnetic recording or embossed characters for holding data. When performing each processing on the card as described above, the PVC base material is excellent in workability such as magnetic tape transferability and flushness, suitability for embossing, suitability for printing, or rigidity of the base material, and is suitable for identification cards. It is.

[0003] In recent years, when PVC is incinerated, there is a fear that dioxin may be generated depending on conditions, and from the viewpoint of environmental protection, there is an increasing demand for identification cards made of non-PVC materials. Therefore, polycarbonate (PC), polyester resin, and the like have been proposed as materials other than PVC. For example, there is a resin using a non-crystalline polyester resin in which a rubber-like elastic material is dispersed, as described in JP-A-2000-242759. The sheet using this non-crystalline polyester resin has the processing suitability of an identification card similar to PVC, and can emboss embossed characters like PVC.

However, a sheet using an amorphous polyester resin can be heat-sealed (heat-laminated) between an oversheet and a card core material by a hot press at the time of manufacturing an identification card, but has a high temperature stability after carding. There was a problem. For example, the temperature in a closed car, especially in summer, reaches 80 ° C or higher, and the card placed here is deformed in a few minutes to tens of minutes, making it impossible to read the identification information provided on the magnetic tape etc. There was a problem that it would not function as an identification card. Therefore, development of an identification card having high heat resistance has been required.

[0005]

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and is an identification card having a non-PVC base material having the same card suitability and embossing suitability as PVC and having high heat resistance. To achieve.

[0006]

According to the first aspect of the present invention,
In an identification card in which a card core material composed of a single layer or multiple layers and an oversheet disposed on both sides of the card core material are laminated, the oversheet disposed on both sides of the card core material is a biaxially stretched polyethylene terephthalate film Or a polyethylene naphthalate film having a thickness of 25 to 150 μm, and a tensile strength of 250 MPa or less, and a tensile elongation of 60% or more, and the card core material was heat-sealed or laminated via a heat-sensitive adhesive. An identification card characterized in that:

According to a second aspect of the present invention, in the identification card, the oversheet disposed on the front and back of the identification card is made of an aromatic crystalline polyester resin made of polyethylene terephthalate or polyethylene naphthalate, and a hard segment and a soft segment are provided. An identification card comprising a biaxially stretched film blended with a polyester block copolymer comprising:

According to a third aspect of the present invention, in the identification card, the biaxially stretched polyester film, which is an oversheet disposed on the front and back of the identification card, is formed of a bowing of the biaxially stretched polyester film when the identification card is manufactured. The identification card is used from a predetermined position so that the influence can be ignored.

According to a fourth aspect of the present invention, in the identification card, the card core material is made of an amorphous resin.

According to a fifth aspect of the present invention, in the identification card, a medium for holding the identification information, calculating the identification information, or processing both is provided at any location. 5. The identification card according to any one of 1. to 4.,

The invention according to claim 6 is the identification card according to claim 5, wherein the medium for processing the identification information is a magnetic recording layer and / or an IC chip.

As a medium for holding and calculating the identification information according to the fifth and sixth aspects, magnetic ink is printed, a magnetic recording layer such as a magnetic tape, or a contact type or non-contact type IC chip is used. Depending on the function required for the card, such as on the surface or inside of the card, it can be provided anywhere.

According to a seventh aspect of the present invention, there is provided the identification card according to any one of the first to sixth aspects, wherein an emboss (floating character) is applied to a predetermined position of the identification card.

[0014]

Embodiments of the present invention will be described below in detail with reference to the drawings. Throughout the drawings, the same members / locations are denoted by the same reference numerals.

FIG. 1 is a plan view showing an embodiment of the identification card of the present invention. FIG. 2 is a cross-sectional view showing one embodiment of the identification card of the present invention in the section XX of FIG. FIG. 3 is a sectional view showing an application example in which the identification card of the present invention is applied to a non-contact IC card. FIG. 4 is a schematic diagram for explaining the bowing phenomenon, and reference numerals 113a to 113d are lines indicating the bowing marked on the film. Hereinafter, a detailed description will be given with reference to these drawings.

FIGS. 2 and 3 show a single-layer or multi-layer card core material (12) with front and back oversheets (1).
1) heat-sealing a biaxially stretched polyester film as
Alternatively, with a configuration integrated through an adhesive layer (13),
In particular, FIG. 2 shows a magnetic recording layer provided on one side of an identification card as an information recording section (14), and FIG. 3 shows an information recording section (14) formed from an IC chip and an antenna inside a card core material (12). This is a configuration in which a non-contact IC is provided.

Although not shown, the information recording unit (1)
As 4), a contact type IC chip having an external connection terminal other than the magnetic recording layer and the non-contact IC may be provided. Further, a printing layer may be provided on either the upper layer or the lower layer of the adhesive layer (13), or instead of the adhesive layer (13), or printing may be provided on the outermost layer of the oversheet (11).

Hereinafter, the identification card of the present invention will be described in more detail. 1, 2 and 3, a biaxially stretched polyester film is used for the oversheet (11). As the polyester film, a polyethylene terephthalate or polyethylene naphthalate film is employed. Preferably, a polyester block copolymer comprising a hard segment and a soft segment is blended with an aromatic crystalline polyester resin comprising polyethylene terephthalate or polyethylene naphthalate. A biaxially stretched film is used.

The thickness of the film is applied from 25 to 150 μm. If the film thickness is less than 25 μm, rigidity cannot be obtained as an identification card, and further, heat resistance is inferior. On the other hand, if the film thickness is greater than 150 μm, the heat resistance is good, but the rigidity of the identification card is high, and a problem occurs that embossing cannot be performed during embossing. Further, it is preferable to consider the suitability for processing such as embossing and the like.
μm applies.

The physical properties of the oversheet (11) are J
Tensile strength 2 according to the test specified in IS K-7127
A biaxially stretched film having a tensile elongation of 50 MPa or less and a tensile elongation of 60% or more is employed. In particular, tensile strength and tensile elongation are important physical properties at the time of embossing of the identification card. If the tensile strength is more than 250 MPa, the emboss height of the identification card specified in JIS X-6302 cannot be satisfied,
If the tensile elongation is less than 60%, the embossed character may be broken, resulting in an impractical identification card.
Furthermore, when the magnetic recording layer is provided as the information recording portion (14), the step and the shape of the magnetic recording layer defined by JIS K-6302 can be reduced by using the polyester resin having the physical properties as the oversheet (11). Be satisfied.

The oversheet (11) according to the present invention will be described in more detail. Preferably, a biaxially stretched film obtained by blending an aromatic crystalline polyester resin with a polyester block copolymer comprising a hard segment and a soft segment is employed. Is done. The aromatic crystalline polyester resin is composed of polyethylene terephthalate or polyethylene naphthalate, and a mixture thereof. As the dibasic acid constituting the polyester resin, terephthalic acid, or 2,6-naphthalenedicarboxylic acid or a mixture thereof, and as the glycol component, ethylene glycol is used as a main component, and various copolymerizations are possible as long as physical properties are not impaired. is there.

The hard segment is a polybutylene terephthalate containing terephthalic acid as an acid component and tetramethylene glycol as a diol component, and a polybutylene prepared from terephthalic acid or its ester-forming derivative and tetramethylene glycol or its ester-forming derivative. It is terephthalate, and these terephthalic acid and tetramethylene glycol can be used alone or can be copolymerized with other third components. The soft segment comprises an aromatic dicarboxylic acid as an acid component and hexamethylene glycol as a diol component. The aromatic polyester is preferably amorphous. A polyester resin composition obtained by blending the polyester block copolymer of the hard segment and the soft segment with the aromatic crystalline polyester resin.

In addition to the polyester resin, a coloring agent, an ultraviolet absorber,
Various stabilizers, antistatic agents, release agents, etc., or moldability,
For the purpose of further improving the transparency, a substance to which inorganic particles such as talc and a metal salt of a fatty acid are added as a crystal nucleating agent is used. In addition, for the purpose of improving other properties, a compound containing an amorphous polymer such as polycarbonate or polyarylate in addition to the above-mentioned constituents is also used.

On the other hand, since the oversheet is biaxially stretched during film production, a bowing phenomenon occurs as shown in FIG. Boeing means that the line 113a marked on the film is a biaxial stretching process (from longitudinal stretching 111 to transverse stretching 1).
In 12), it is transformed into 113b to 113c, and the fixed state after the completion of the biaxial stretching is 113d to form a bow (Bowin
g) You are. It is considered that this is because the end face of the film is fixed until the end of the biaxial stretching is fixed, but the central part of the film is in an unfixed state and the contraction force in the machine direction (MD) is large.

In carding, if the front and back sides are bonded without considering this bowing, the contraction direction of the oversheet will be different, which will cause the card to warp or curl. Therefore, a combination of the overseat (11) considering the bowing is indispensable. The combination considering the bowing means that the bowing shape is matched. For example, the same flow direction (114) can be combined from any position, but the vertical direction (115) can be combined with the nearest neighbor bowing shape. Can be. Vertical direction (1
Regarding the combination of 15), it is needless to say that the immediate length changes depending on the sampling position from the film. Further, the combination of the front and back oversheets (11) is not limited to the same lot of the film, but may be a combination of different lots if the bowing shape is the same.

The card core material (12) is formed by laminating each constituent member and the like and adjusting the thickness so as to have a predetermined thickness, or by laminating the card core material and having an information recording portion (14) such as a non-contact IC inside. You can have. A card core material (12) having a thickness of about 0.05 mm to 1.0 mm is used, and is constituted by a single layer or a laminate. As the resin to be used, an amorphous polyester resin represented by PET-G (manufactured by Eastman Chemical Co., Ltd.) or a sheet of a polycarbonate resin alone or a mixture thereof is used. Further, a PVC resin which is conceptually deviated from the intent of the present invention but is advantageous in material cost can be used without any problem.

The adhesive layer (13) is an adhesive for integrating the constituent members, and can be provided in a thickness of about 0.1 μm to 20 μm by a printing method, a coating method, or the like. The resin used may be, for example, a polyester resin, an acrylic resin, a vinyl chloride-vinyl acetate copolymer or the like, which is usually used as an adhesive, and is not particularly limited. Alternatively, it is also possible for a printing layer such as a pattern printing to function as an adhesive layer. Furthermore,
In the case of a combination of a material in which the oversheet (11) and the card core material (12) are thermally fused, it is possible to remove the adhesive layer (13).

The information recording section (14) can use the magnetic recording layer shown in FIGS. 2 and 3 and a non-contact IC, which record analog data and digital data.
Alternatively, it is a configuration for performing calculations, which is known to those skilled in the art. Although not shown, a contact type IC chip or the like can be used as needed. The magnetic recording layer is an oversheet (11).
Directly or on a magnetic transfer tape.

As a method of manufacturing the identification card (1),
The members are laminated and integrated, but a heat laminating method, a hot pressing method, or the like known to those skilled in the art is used, and the method is not limited to these methods as long as the members are laminated and the adhesion strength is obtained.

[0030]

EXAMPLES The present invention will be described in detail with reference to specific examples.

[Embodiment 1] A detailed description will be given with reference to a sectional view showing one embodiment of the identification card of the present invention shown in FIG.
100 μm thick tensile strength: 200 MPa, tensile elongation:
An adhesive paint of 5 μm was applied to the front and back oversheets (11) made of 150% transparent polyethylene terephthalate film by a bar coating method in consideration of bowing.
Card core material (1) made of a 560 μm thick PET-G (Eastman Chemical Co., Ltd.) resin sheet
2) and a magnetic transfer tape (14) laminated on the outermost surface of the surface oversheet (11), respectively, and integrated at a press temperature of 130 ° C. using a hot press method known to those skilled in the art to identify the identification card (1). I got

(Coating used) <Adhesive layer> Polyester resin 30 parts by weight (Stafix SOC manufactured by Fuji Photo Film Co., Ltd.)
-30M) ・ Methyl ethyl ketone 50 parts by weight ・ Toluene 50 parts by weight

[Embodiment 2] A detailed description will be given with reference to a sectional view showing an embodiment of the identification card of the present invention shown in FIG.
100 μm thick tensile strength: 100 MPa, tensile elongation:
The adhesive paint described in the above Example 1 was applied to the oversheet (11) on the front and back composed of a 200% transparent copolymerized polyethylene terephthalate film by a bar coating method in consideration of bowing. PET-G with a thickness of 560 μm
(Eastman Chemical Co., Ltd.) Card core material (12) made of resin and surface oversheet (11)
The magnetic transfer tapes 14 were respectively laminated on the outermost surfaces of the pieces, and were integrated at a press temperature of 130 ° C. using a hot press method known to those skilled in the art to obtain an identification card 1.

Comparative Example 1 Tensile strength at a thickness of 100 μm:
A comparison identification card was prepared according to Example 1 using a transparent polyethylene terephthalate film having 260 MPa and a tensile elongation of 60% as a front and back oversheet.

Comparative Example 2 Tensile strength with a thickness of 100 μm:
A non-stretched polyester resin film of 100 MPa, tensile elongation: 200% is used as a front and back oversheet and has a thickness of 56
A card core material made of 0 μm PET-G (manufactured by Eastman Chemical Co., Ltd.) resin, and a magnetic transfer tape laminated on the outermost surface of the surface oversheet, respectively, using a hot press method known to those skilled in the art. It was integrated at a press temperature of 130 ° C. to produce a comparison identification card.

Comparative Example 3 A comparison identification card was prepared according to Example 1 except that the front and back oversheets (11) described in Example 1 were arranged without bowing.

The identification card produced as described above had the results shown in Table 1.

[Table 1]

[0038]

According to the present invention, the identification card obtained according to the present invention is the same as a conventional PVC-based identification card, as defined in JIS X-6302.
And the shape of the magnetic tape was satisfied, and a heat resistance of 90 ° C. or more was obtained.

[Brief description of the drawings]

FIG. 1 is a plan view showing a basic configuration of an identification card obtained according to the present invention.

FIG. 2 is a sectional view showing a basic configuration of an identification card obtained according to the present invention.

FIG. 3 is a sectional view showing an application configuration of the identification card obtained according to the present invention.

FIG. 4 is a schematic diagram illustrating the bowing phenomenon.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Identification card 2 ... Emboss 11 ... Oversheet 12, 12a, 12b ... Card core material 13 ... Adhesive layer 14 ... Magnetic recording layer 15 ... Non-contact IC 111 ... Vertical extension part 112 ... Horizontal extension part 113a-113d ... Boeing Change in shape 114 ... Flow direction 115 ... Vertical direction

────────────────────────────────────────────────── ─── of the front page continued (51) Int.Cl. ⁷ identification mark FI theme Court Bu (reference) G06K 19/06 G06K 19/00 B (72 ) inventor Yasushi Oba Taito-ku, Tokyo, Taito-1-chome fifth No. 1 Inside Toppan Printing Co., Ltd. (72) Inventor Toshifumi Imai 1-5-1, Taito, Taito-ku, Tokyo Toppan Printing Co., Ltd. F-term (reference) 2C005 HA10 JA02 JA08 JA26 KA01 KA02 KA15 KA37 KA40 LA03 LA04 LA18 LA19 LA25 MA11 NA09 PA03 PA18 RA04 TA21 TA22 4F100 AK42B AK42C AT00A BA02 BA03 BA06 BA07 BA10B BA10C EC03 EC032 EJ08C EJ17 EJ172 EJ38B EJ38C EJ42 EJ422 GB41 GB90 JJ03 JK02B JK02C JK08B JL01 YY00B03

Claims (7)

[Claims] 1. A card core material comprising a single layer or a multilayer,
In the identification card in which the oversheets arranged on both sides of the card core material are laminated, the oversheets arranged on both sides of the card core material are a biaxially stretched polyethylene terephthalate film or a polyethylene naphthalate film having a thickness of 25 to 150.
μm, and a film having a tensile strength of 250 MPa or less and a tensile elongation of 60% or more, and heat-fused with the card core material,
Alternatively, the identification card is laminated with a heat-sensitive adhesive. 2. In the identification card, the oversheet disposed on the front and back of the identification card is made of an aromatic crystalline polyester resin made of polyethylene terephthalate or polyethylene naphthalate, and a polyester block copolymer made of hard segments and soft segments. 2. The identification card according to claim 1, comprising a biaxially stretched film containing 3. In the identification card, the biaxially stretched polyester film, which is an oversheet disposed on the front and back of the identification card, has a predetermined shape so that the effect of bowing of the biaxially stretched polyester film can be ignored when the identification card is manufactured. Claim 1, characterized in that it is used from a position.
2. The identification card described in 2. 4. The identification card according to claim 1, wherein said card core material is made of an amorphous resin. 5. The identification card according to claim 1, wherein a medium for holding the identification information, calculating the identification information, or processing both is provided at any place.
The identification card according to any one of Items 1 to 4. 6. A medium for processing identification information, comprising: a magnetic recording layer;
The identification card according to claim 5, wherein the identification card is an IC chip or both. 7. The identification card according to claim 1, wherein said identification card is provided with embossment (floating characters) at a predetermined position of said identification card.