JP2000309181A - Card - Google Patents

Abstract

PROBLEM TO BE SOLVED: To laminate the trouble due to hydrogen chloride or dioxine at the incineration treatment of cards by meltingly laminating a layer made of one or more resins selected from the group consisting of specified resins on both the sides of an amorphous polyethylene terephthalate base material. SOLUTION: A resin is meltingly laminated on both the sides of an amorphous polyethylene terephthalate (hereafter referred to as 'PET') base material 2. On the PET base material 2, a printing layer 4 may well be provided, when necessary. Further, a magnetic tape 5 may well be provided on the side 1 of a card. In this case, the PET base material 2 is a sheet made of an undrawn sheet, the degree of crystallinity of which is about 5% or less, or a copolymer of terephthalic acid, cyclohexane dimethanol and ethylene glycol. A polystyrene resin sheet, a polymethyl methacrylate resin sheet or the like, which does not stick to a mirror plate at its thermal lamination, is used as a resin layer 3 laminating onto both the sides of the base material 2. Furthermore, rein layers different from each other may well be laminated on both the sides of the base material.

Description

DETAILED DESCRIPTION OF THE INVENTION TECHNICAL FIELD OF THE INVENTION

The present invention relates to an information recording medium used for, for example, a cash card, a credit card, an ID card (identification card), a membership card, a prepaid card, etc., and particularly when the information recording medium is discarded after use. To
The present invention relates to a card that can be easily discarded.

[Prior art]

2. Description of the Related Art Magnetic recording media have been widely used in the field of cards such as cash cards, credit cards, ID cards, etc., and are mainly made of polyvinyl chloride (PVC) resin or vinyl chloride / vinyl acetate copolymer. Is used, and polyvinyl chloride resin is particularly common. This polyvinyl chloride resin is excellent in physical mechanical properties and embossing suitability of a floating character (emboss) portion, and is widely used as a perfect material for a card material. As a method of manufacturing these cards, for example, printing is performed on a white PVC base material, a highly transparent PVC sheet is laminated on both sides, and then integrated by heat fusion with a heating press machine, and punched into a card shape. . Finally, the card surface is embossed to complete the card.

[0003] However, polyvinyl chloride resin is excellent in physical properties and processability, but it causes problems such as hydrogen chloride and dioxin in disposal after use, especially in the treatment by incineration. In other countries, there is an increasing movement to remove PVC, and there are also moves in Japan in the field of construction materials and industrial materials.

[0004] Therefore, there is an idea to use another resin for de-PVC, such as polyethylene resin, polypropylene resin,
Thermoplastic resins such as polyester resin, polycarbonate resin, and polyacrylic resin, and thermosetting resins such as epoxy resin, polyurethane resin, polyamide resin, and polyimide resin are considered, but these resins are processed into card shapes. However, none of the cards can be said to be equivalent to a vinyl chloride resin in terms of strength, various resistances, and processability such as embossability.

[0005] Polyvinyl chloride (PS) resin, acrylonitrile-styrene copolymer (AS) resin, acrylonitrile-butadiene-styrene copolymer (ABS) resin are one of the resins closest to the card characteristics of vinyl chloride resin.
Examples include polymethyl methacrylate (PMMA) resin. However, even if a card is made with these resins, the mechanical strength is inferior, and above all, the card itself curls after embossing, making it unattractive as a card, and even writing and reading errors as a magnetic card There is.

On the other hand, polyethylene terephthalate (PE)
T) is a highly crystalline resin, and the stretched sheet has excellent characteristics such as excellent transparency, high Young's modulus and high heat resistance, and is used for prepaid cards such as telephone cards, orange cards, and commuter passes. In addition, it is almost exclusively used as a base for video tapes, floppy disks, radiographic films and the like.

However, polyethylene terephthalate (P
ET) includes a so-called unstretched so-called A-PET.
There is an amorphous polyethylene terephthalate sheet called PET-G and an amorphous sheet made of a copolymer of terephthalic acid, cyclohexanedimethanol and ethylene glycol called PET-G. Although these amorphous polyethylene terephthalate (PET) resin sheets have physical properties and embossing suitability close to those of vinyl chloride resins, when laminated by a hot press method using a mirror plate in the card manufacturing process, However, it was difficult to make a glossy card on the surface because of sticking to the mirror surface plate.

[Problems to be solved by the invention]

The present invention has been made in view of the above-mentioned problems. Instead of a polyvinyl chloride resin as a card base material, amorphous polyethylene terephthalate (PE) is used.
T) By laminating one or more resin layers selected from polystyrene resin, acrylonitrile-styrene copolymer resin, acrylonitrile-butadiene-styrene copolymer resin, and polymethyl methacrylate resin on both surfaces of the resin substrate, Aims to provide a card that has the same physical properties and processing suitability as a conventional polyvinyl chloride resin card, but does not have the problem of hydrogen chloride or dioxin when incinerated after use. And
In addition, by laminating one or more second resin layers selected from nitrocellulose, ethyl cellulose, polyamide resin, polyvinyl butyral, acrylic resin, polyurethane, and polyester on the outer layer of the resin layer, the laminate is attached to the mirror plate during lamination. Provide a card that does not stick, has the same physical properties and processing suitability as conventional polyvinyl chloride resin cards, does not have the problem of hydrogen chloride or dioxin when incinerated after use, and considers disposal processing The purpose is to:

[Means for Solving the Problems]

According to the first aspect of the present invention, a polystyrene resin is provided on both sides of an amorphous polyethylene terephthalate substrate.
A card characterized in that at least one resin layer selected from an acrylonitrile-styrene copolymer resin, an acrylonitrile-butadiene-styrene copolymer resin, and a polymethyl methacrylate resin is melt-laminated.

According to a second aspect of the present invention, a plurality of layers of an amorphous polyethylene terephthalate substrate are melt-laminated, and the outer layer is selected from nitrocellulose, ethyl cellulose, polyamide resin, polyvinyl butyral, acrylic resin, polyurethane, and polyester. A card characterized in that at least one resin layer is laminated.

According to a third aspect of the present invention, in the card according to the first or second aspect, the amorphous polyethylene terephthalate substrate is a copolymer of terephthalic acid, cyclohexanedimethanol and ethylene glycol. Features.

According to a fourth aspect of the present invention, in the card according to the first or second aspect, a white filler is mixed in the amorphous polyethylene terephthalate base material.

According to a fifth aspect of the present invention, in the card according to the first or second aspect, a magnetic recording layer is laminated on the card.

According to a sixth aspect of the present invention, in the card according to the first or second aspect, the transfer recording is performed on the card.

[0015]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described in detail.

First, FIG. 1 shows a card 1 according to the first invention of the present invention, which comprises an amorphous polyethylene terephthalate substrate 2
And the resin 3 is melt-laminated on both sides. The amorphous polyethylene terephthalate substrate 2 may be provided with a printing layer 4 as required, and a magnetic tape 5 may be provided on the card 1 surface. FIG. 4 shows a second embodiment of the present invention.
A card 11 according to the invention, comprising a plurality of layers of an amorphous polyethylene terephthalate substrate 12 and resin layers 1 on both sides thereof.
3 are laminated. The amorphous polyethylene terephthalate substrate 12 may be provided with a printing layer 14 as needed, and a magnetic tape 15 may be provided on the card 11 surface.

The amorphous polyethylene terephthalate substrate used in the present invention has a crystallinity of 10% or less, preferably 5%.
The following unstretched sheet or sheet made of a copolymer of terephthalic acid, cyclohexanedimethanol and ethylene glycol.

Further, various additives and substances such as polymers may be added to these polyethylene terephthalate resins as long as the weight ratio is 50% or less, preferably 20% or less. However, if a polymer having crystallinity is added, it becomes difficult to perform melt lamination with a resin layer on the polymer, so that the addition in such a case must be careful.

As a filler for increasing whiteness,
For example, in the case of amorphous filler, heavy calcium carbonate, light calcium carbonate, natural silica, kaolin, clay, titanium oxide, barium sulfate, zinc oxide, aluminum hydroxide, alumina, magnesium hydroxide, etc. can be added and kneaded. Talc, mica, glass flakes, etc. can be added as the filler in the form of a needle.
Wollastonite, potassium titanate, basic magnesium sulfate, sepiolite, zonotolite, aluminum borate and the like can be added and kneaded. If necessary, various additives such as a coloring inhibitor of 0.05 to 5 parts by weight and an antioxidant of 0.05 to 5 parts by weight may be used as long as the properties of the kneaded resin other than the filler are not lost. , Lubricant 0.05-5
It is possible to add parts by weight, such as an organic pigment and an inorganic pigment.

The method of kneading the filler in the above resin includes a dry blending method and a melt blending method.
The method of molding the kneaded resin includes T-die extrusion, calender roll molding, and the like, and a sheet-like base material layer or a resin layer is molded by a method appropriately selected.

The resin layers to be laminated on both sides of the base material include a polystyrene resin sheet, an acrylonitrile-styrene copolymer resin sheet, an acrylonitrile-butadiene-styrene copolymer resin sheet which does not adhere to the mirror plate during heat lamination. Although a polymethyl methacrylate resin sheet or the like can be used, different resin layers may be laminated on both surfaces.

The amorphous polyethylene terephthalate substrate having a plurality of layers is formed by laminating an amorphous polyethylene terephthalate sheet on both sides of an amorphous polyethylene terephthalate substrate, and has a low crystallinity like the substrate. It is a stretched sheet. In order to prevent the base material from sticking to the mirror plate at the time of heat lamination, one or more resins selected from nitrocellulose, ethyl cellulose, polyamide resin, polyvinyl butyral, acrylic resin, polyurethane, and polyester are laminated thereon and used. Alternatively, different resins may be laminated on both sides.

The laminating method includes a melt extrusion coating method and a gravure code method in the same manner as described above. Here, it is more convenient to dissolve the resin in an appropriate organic solvent and then laminate by a gravure coating method. . As the timing of lamination of these resins, rather than laminating at the time of heat lamination, it is desirable that one side of a polyethylene terephthalate sheet is previously coated with those resins,
In that sense, the sheet is not limited to the gravure coating method, and may be co-extruded with polyethylene terephthalate during the melt extrusion of the sheet. The thicknesses of the polyethylene terephthalate and the coating resin are 50 to 200 μm and 0.5 to 10 μm, respectively, more preferably 75 to 125 μm and 1 to 3 μm.

In order to prevent the coating resin from sticking to the mirror surface plate for lamination and to provide abrasion resistance as a card after carding, Teflon powder, polyethylene powder, animal wax, mineral wax, etc. Wax, natural wax such as petroleum wax, synthetic hydrocarbon wax, aliphatic alcohol and acid wax, aliphatic ester and glycerite wax, hydrogenated wax,
Anti-wear agents such as synthetic ketone wax, amine and amide wax, synthetic animal wax wax, synthetic wax such as alpha-olefin wax, inorganic fillers and metal salts of higher fatty acids such as zinc stearate. And the like. Furthermore, it is also possible to attach a magnetic tape and transfer and record a photograph of a face, a bar code, and the like as necessary on these cards.

As a method for producing a card formed by laminating such an amorphous polyethylene terephthalate sheet and a resin layer or an amorphous polyethylene terephthalate sheet, a melt lamination method using a heating press machine can be used.

In this laminating method, a transparent resin layer is laminated on both sides of a printed amorphous polyethylene terephthalate substrate. At this time, even if the types of resin layers laminated on both sides are different as described above, Often, in the case of a magnetic card, a magnetic tape is further laminated. This is a method in which this is sandwiched between mirror plates that are one size larger, and then the cards are integrated by a hot-melt press. The mirror plate used at this time is a nickel-chrome plated copper plate, a polished stainless steel plate,
An aluminum plate or the like whose surface is polished can be used. In addition, printing on amorphous polyethylene terephthalate substrate is performed by printing characters or pictures by the same method as that of conventional paper and plastic, that is, printing method such as offset printing method, screen printing method, and gravure printing method. However, if a heat of 90 ° C. or more is applied during any printing, the amorphous polyethylene terephthalate base material is softened and deformed. Therefore, the drying temperature should be controlled to a lower temperature.

After heat laminating for a predetermined time and an appropriate pressure,
After cooling, the card material is peeled off from the mirror surface plate, and punched into a card shape by punching with a mold. The conditions of the heat lamination are performed at a temperature not lower than the softening point of the thermoplastic resin cavity and lower than the melting point, and any of a polystyrene resin sheet, an acrylonitrile-styrene copolymer resin sheet, an acrylonitrile-butadiene-styrene copolymer resin sheet, and a polymethyl methacrylate resin sheet Also in the case of 100-160 ° C., 5-30 kgf / cm ² , preferably 10-20 k
The treatment is performed at a pressure of gf / cm ² for about 5 to 60 minutes. At this time, the factors of temperature, pressure and time are not independent conditions, for example, primary temperature of 120 ° C., 5 kgf / cm ² , 1
Perform for 0 minutes, and at 140 ° C, 10kgf /
In a manner such as cm ² , 10 minutes, it can be appropriately determined based on the lamination strength of the amorphous polyethylene terephthalate base material and the resin layer, the degree of mirror finish of the surface, the shrinkage due to heat, and the like. Incidentally, in the case of a normal cash card or credit card, the lamination strength between the base material and the protective sheet needs to be 2 kgf / cm or more, and preferably 3 kgf / cm.
f / cm or more.

The mirror plate used at this time has a surface roughness Ra = 0.
The card has a gloss of not less than 05 μm and a gloss of 600 (60 °) or more, and has a gloss on the surface of the card. Gloss on the surface of the card means that glossy finish is more beautiful from the point of design, and when a magnetic tape is attached, it is laminated and embedded at the same time, but the surface quality is good If not, there is a possibility that the magnetic characteristics such as dropout may be obstructed. Another reason is that even when a transfer recording of a face photograph, a bar code, or the like is performed, the transfer cannot be performed smoothly without the smoothness of the surface.

As a method of punching into a card shape, there are a punching method using a punching die and a punching method using a male / female type. The die is punched into a prescribed card shape using these dies.

In the card-shaped form, a floating character is embossed by an embosser, and the character is dipped and colored by a thermal transfer foil, magnetic information is encoded on a magnetic stripe, and in some cases, a face photograph or a bar is printed. Transfer the code etc. to finish the card.

In the card of the present invention, since the conventionally used support contains chlorine, the place where hydrogen chloride or dioxin was generated during incineration after use is considered as containing the chlorine. By using a non-specific base material, it has become possible to provide a card which is easy to incinerate and which has the same physical properties and workability as those of conventional vinyl chloride.

[0032]

Embodiments of the present invention will be described below in detail.

(Example 1) A polystyrene sheet (manufactured by Denki Kagaku Kogyo KK: "Denka Styrol HI-E-4") was extruded from a T-die to a thickness of 100 µm by a melt extrusion method to form a transparent polystyrene sheet. Similarly, a mixture obtained by kneading 10% of titanium oxide in polyethylene terephthalate (Kuraray Co., Ltd .: "Gravet") was extruded to 550 μm by a melt extrusion method, and rapidly cooled to obtain a white sheet. A picture is printed on this white sheet by a screen printing method, and both sides are sandwiched between the above-mentioned polystyrene sheets, and a magnetic tape is temporarily attached.
After heat fusing at 130 ° C. for 20 minutes at a pressure of f / cm ^2, the mixture was cooled and solidified, and punched into a card shape to produce a card 1.

Example 2 Polystyrene (DENKA CORPORATION)
Extruded from a T-die to a thickness of 100 μm by a melt extrusion method to form a transparent polystyrene sheet. Similarly, a copolymer of polyethylene terephthalate and polycyclohexylene terephthalate is produced. A mixture obtained by kneading 10% of titanium oxide with a coalesced product (manufactured by Toray Industries, Inc .: copolymer "Easter GN002" of terephthalic acid, cyclohexanedimethanol and ethylene glycol) to a thickness of 5 by a melt extrusion method.
A white sheet was obtained to have a thickness of 50 μm. On this white sheet, a pattern is printed by a screen printing method, both sides are sandwiched by a polystyrene sheet, a magnetic tape is temporarily attached, and further sandwiched by a stainless sheet having a smooth surface,
After heat-sealing at 130 ° C. for 20 minutes at a pressure of 15 kgf / cm ^2, the mixture was cooled and solidified, and punched into a card shape to produce a card 1.

Example 3 An ABS resin (manufactured by Daicel Chemical Industries, Ltd .: "Sebian V-720") was extruded from a T-die to a thickness of 100 μm by a melt extrusion method to form a transparent sheet. Similarly, a copolymer of polyethylene terephthalate and polycyclohexylene terephthalate (copolymer of terephthalic acid, cyclohexanedimethanol and ethylene glycol: "Easter GN002" manufactured by Toray Industries, Inc.) was kneaded with 10% of titanium oxide. A white sheet was obtained by a melt extrusion method so as to have a thickness of 550 μm. A pattern is printed on this white sheet by a screen printing method, the both sides are sandwiched between polystyrene sheets, a magnetic tape is temporarily attached, and the sheet is further sandwiched between stainless steel sheets having a smooth surface, at 130 ° C. under a pressure of 15 kgf / cm ^2. After heat fusion for 20 minutes, the mixture was cooled and solidified, and punched into a card shape to produce a card 1.

The cards of Examples 1, 2 and 3 can be used as they are in the usual card manufacturing process, and the embossability, heat resistance, chemical resistance, magnetic properties, etc. required for the cards are actually used. There was no problem.

Comparative Example 1 The same as Example 1 except that a 100 μm thick vinyl chloride sheet (manufactured by Tsutsunaka Plastics Industry Co., Ltd., “Sunroid Vip”) was used instead of the 100 μm thick polystyrene sheet. Card 31 was made.

(Comparative Example 2) Instead of a white polyethylene terephthalate sheet having a thickness of 550 µm,
A card 31 was produced in the same manner as in Example 2 except that a m-white vinyl chloride sheet (manufactured by Tsutsunaka Plastics Industry Co., Ltd .: “Sunroid Vip”) was used.

Comparative Example 3 A card was manufactured in the same manner as in Example 1 except that a 100 μm-thick polyethylene terephthalate sheet (manufactured by Toray Industries, Inc., “Lumirror T type”) was used instead of the 100 μm-thick polystyrene sheet. 41 were produced.

The cards of Comparative Examples 1 and 2 have the heat resistance, base resistance, chemical resistance and the like required for the cards of Examples 1 and 2.
Although it was equivalent to 2, there was no change that hydrogen chloride or dioxin might be generated during incineration treatment because a conventionally used vinyl chloride resin was used for a part of the layer structure. Further, in the card of Comparative Example 3, the polyethylene terephthalate resin was stuck to the mirror plate at the time of lamination, and it was difficult to produce the card.

As described above, the cards of Comparative Examples 1 and 2 have a problem that they are not excellent in discardability because they contain a vinyl chloride resin in the base material, and the cards of Comparative Example 3 cannot be laminated and laminated to make cards. It is apparent that the method has a problem that
The cards of a few types can be said to be cards which do not contain vinyl chloride in the resin constituting the base material and which can be processed in the same manner with conventional processing equipment, and which are extremely excellent in disposability and processability.

Next, an embodiment of the second invention will be described in detail.

Example 4 Polyethylene terephthalate (Kuraray Co., Ltd .: “Kurapet”) was extruded from a T-die so as to have a thickness of 100 μm by a melt extrusion method, quenched, and a transparent amorphous polyethylene terephthalate sheet was obtained. Then, a polymethyl methacrylate solution having the following formulation (A) was coated so that the thickness after drying was 2 μm. Similarly, a mixture obtained by kneading 10% of titanium oxide with polyethylene terephthalate (Kuraray Co., Ltd .: "Kurapet") was extruded to a thickness of 550 µm by a melt extrusion method, and rapidly cooled to obtain a white sheet. The pattern is imprinted on this white sheet by screen printing, the polyethylene terephthalate is sandwiched on both sides so that the polymethyl methacrylate layer is the outer layer, and a magnetic tape is temporarily attached, and then the surface is smoothened with a stainless steel sheet. Furthermore, at a pressure of 15 kgf / cm ² and 130 ° C.
After heat fusion for 20 minutes, the mixture was solidified by cooling, and punched into a card shape to produce a force 111. Formulation (A)-Polymethyl methacrylate resin: 15 parts by weight "Diatale BR100" manufactured by Mitsubishi Rayon-Lubricant: 0.5 part by weight of zinc stearate-Solvent: MEK / toluene = 1/180 parts by weight

Example 5 A copolymer of polyethylene terephthalate and polycyclohexylene terephthalate (manufactured by Toray Industries, Inc .: a copolymer of terephthalic acid, cyclohexanedimethanol and ethylene glycol "Easter GN002") was melt-extruded. 100μ thickness
m and quenched to produce a transparent amorphous PET-G sheet, and then coated with a polyester solution of the following formula (B) to a dry thickness of 1.2 μm. did. Similarly, a copolymer of polyethylene terephthalate and polycyclohexylene terephthalate (manufactured by Toray Industries, Inc .: a copolymer of terephthalic acid, cyclohexanedimethanol and ethylene glycol "Easter GN0021") was kneaded with 10% of titanium oxide. A white sheet was obtained by melt extrusion using a material having a thickness of 550 μm. A pattern is printed on this white sheet by a screen printing method, the both sides are sandwiched between the above PET-G so that the polyester layer becomes an outer layer, and a magnetic tape is temporarily attached, and then further sandwiched by a stainless sheet having a smooth surface. Then, it was heat-fused at 130 ° C. for 20 minutes at a pressure of 15 kgf / cm ² , then cooled and solidified, and punched into a card shape to produce a card 11. Formulation (B) ・ Polyester: 8 parts by weight of Toray “Kemit K588” ・ Lubricant: 0.5 part by weight of zinc stearate ・ Solvent: MEK / toluene / MIBK = 1/1/1 85 parts by weight

For the cards of Examples 4 and 5, the equipment in the usual card manufacturing process can be used as it is.
Embossing suitability, heat resistance, chemical resistance required for cards,
The magnetic properties and the like were not problematic in practical use.

(Comparative Example 4) Instead of a polyethylene terephthalate sheet having a thickness of 100 µm, a vinyl chloride sheet having a thickness of 100 µm (manufactured by Tsutsunaka Plastic Industry Co., Ltd.):
A card 51 was produced in the same manner as in Example 4 except that "Sunroid Vip") was used.

(Comparative Example 5) Instead of a white polyethylene terephthalate sheet having a thickness of 550 µm,
A card 51 was produced in the same manner as in Example 5 except that a m-white vinyl chloride sheet (manufactured by Tsutsunaka Plastics Industry Co., Ltd .: “Sunroid Vip”) was used.

Comparative Example 6 Instead of a 100 μm-thick polyethylene terephthalate sheet having a polymethyl methacrylate coat layer, a 100 μm-thick
A card 61 was produced in the same manner as in Example 4 except that a polyethylene terephthalate sheet of m was used.

The cards of Comparative Examples 4 and 5 have the heat resistance, base resistance, chemical resistance and the like required for the cards of Example 4,
Although it was the same as that of No. 5, the fact that hydrogen chloride or dioxin may be generated during incineration treatment does not change at all because a conventionally used vinyl chloride resin is used for a part of the layer structure. Further, in the card of Comparative Example 3, the polyethylene terephthalate resin was stuck to the mirror plate at the time of lamination, and it was difficult to produce the card.

As described above, the cards of Comparative Examples 4 and 5 have a problem that they are not excellent in disposal because the base material contains vinyl chloride resin, and the cards of Comparative Example 6 cannot be laminated and laminated, so that the cards are manufactured. There is a problem that it is not possible.

On the other hand, in the cards of Examples 4, 5, and 6, the resin constituting the base material did not contain vinyl chloride, and
It can be said that the card can be processed in the same manner with the conventional processing equipment, and is extremely excellent in disposability and processability.

[0052]

As described above, the card of the present invention is
Instead of polyvinyl chloride resin as a card base material, polystyrene resin, ABS resin, or polymethyl methacrylate resin is melt-laminated on both sides of an amorphous polyethylene terephthalate (PET) resin base material. It is possible to provide a card that has the same physical properties and processing suitability as a vinyl chloride resin card but does not have the problem of generating hydrogen chloride or dioxin when incinerated after use, and that considers disposal processing. became. In addition, by laminating resin layers made of nitrocellulose, ethyl cellulose, polyamide resin, polyvinyl butyral, acrylic resin, polyurethane, and polyester, sticking to the mirror plate during lamination processing is eliminated.

The thermoplastic resin that can be used in the card of the present invention can be mixed with additives other than the white filler and other thermoplastic resins to the extent that physical properties and processability are not reduced.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view illustrating a cross-sectional configuration of a card according to an embodiment of the first invention.

FIG. 2 is a cross-sectional view illustrating a cross-sectional configuration of a card according to Comparative Examples 1 and 2 of the first invention.

FIG. 3 is a cross-sectional view illustrating a cross-sectional configuration of a card according to a third comparative example of the first invention.

FIG. 4 is a cross-sectional view illustrating a cross-sectional configuration of a card according to an embodiment of the second invention.

FIG. 5 is a cross-sectional view illustrating a cross-sectional configuration of a card shown in Comparative Examples 4 and 5 of the second invention.

FIG. 6 is a cross-sectional view illustrating a cross-sectional configuration of a card according to Comparative Example 6 of the first invention.

[Description of Signs] 1, 11 Card 2, 12 Amorphous polyethylene terephthalate base material 3, 13 Resin layer 4, 14 Printing layer 5, 15 Magnetic tape 31, 41, 51, 61 Card 32, 42, 52 of comparative example , 62 Base material 33, 43, 53, 63 Resin layer 34, 44, 54, 64 Printing layer 35, 45, 55, 65 Magnetic tape

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification code FI Theme coat ゛ (Reference) B32B 27/36 B32B 27/36 27/40 27/40 G06K 19/077 G06K 19/02 19/02 B32B 27 / 00 G // B32B 27/00 G06K 19/00 K F term (reference) 2C005 HA21 HB01 HB04 JA02 JA08 4F100 AA21 AJ06C AK12B AK12D AK12J AK23C AK25B AK25C AK25D AK27B AK27B BAK AK41B03 BA07 BA08 BA10A BA10B BA10C BA10D BA13 CA13A GB41 GB90 HB31 JA11A JG06E JL11 JL16 5B035 BA03 BA05 BB02 BC01 BC02

Claims (6)

[Claims] 1. One or more resins selected from a polystyrene resin, an acrylonitrile-styrene copolymer resin, an acrylonitrile-butadiene-styrene copolymer resin, and a polymethyl methacrylate resin on both surfaces of an amorphous polyethylene terephthalate substrate. A card characterized in that layers are melt-laminated. 2. A multi-layer amorphous polyethylene terephthalate base material is melt-laminated and one or more resin layers selected from nitrocellulose, ethyl cellulose, polyamide resin, polyvinyl butyral, acrylic resin, polyurethane and polyester are formed on the outer layer. A card characterized by laminating. 3. The card according to claim 1, wherein the amorphous polyethylene terephthalate substrate is a copolymer of terephthalic acid, cyclohexane dimethanol and ethylene glycol. 4. The card according to claim 1, wherein a white filler is mixed in the amorphous polyethylene terephthalate base material. 5. The card according to claim 1, wherein a magnetic recording layer is laminated on the card. 6. The card according to claim 1, wherein a transfer recording is performed on the card.