JP2871148B2 - card - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an optical card capable of optically reading information only or additionally writing and reading information, and more particularly to a card provided with a magnetic stripe and a visible image such as characters and photographs on the back of the card. It is about.

[0002]

2. Description of the Related Art An optical card having a larger storage capacity than a magnetic card has recently been proposed in place of a magnetic card which is widely used as, for example, a cash card or a credit card. As a general configuration of this optical card, at least a backing substrate, an optical recording layer, a transparent substrate is sequentially laminated, through the transparent substrate,
It records and reproduces information. This kind of optical card has attracted attention because it has a large storage capacity and is mainly suitable for medical cards.

[0003]

However, when exchanging data such as the addition of an ID function which does not require a large storage capacity of a conventional card to such a medical optical card, a magnetic field is formed on the upper surface of the back of the optical card. In the sense that a stripe is provided, and further, in the sense of visually confirming the patient, it has been proposed to provide visible information such as a photograph of the patient who is the card user on the back side, the name, etc.
The fact is that its production has not yet reached practical use.

[0004] The reason is that magnetic cards such as cash cards and credit cards made of ordinary polyvinyl chloride resin are printed on a white polyvinyl chloride resin sheet generally called a center core, and transparent polyvinyl chloride resin is printed on the front and back. Place the sheet, temporarily fix the magnetic stripe on it, perform thermal lamination, embed the magnetic stripe, and then provide visible information by a printing method using a transfer ribbon made of a sublimable or hot-melt transferable dye without an image receiving layer In contrast, optical cards have optical characteristics such as light transmittance and birefringence, and strict requirements such as not causing deformation or deterioration in later processes. For this reason, conventional polyvinyl chloride resin is not sufficient for substrates, and composites with other materials, including polyvinyl chloride resin, are necessary. It is due to be at.

[0005] Under the circumstances described above, recently, there has been a particularly strong demand for the appearance of a card that meets such uses and conditions.

The present invention has been made to solve the above problems, and has optical characteristics such as light transmission and birefringence, and desired mechanical and thermal characteristics. The magnetic stripe can be embedded flush with the card surface while satisfying the requirements such as not causing deformation or deterioration in the process, and the visible information by sublimable or hot-melt transferable dye can be clearly provided. It is an object of the present invention to provide an extremely reliable card.

[0007]

In order to achieve the above object, according to the present invention, at least an intermediate layer on which an optical recording layer is formed includes a transparent substrate provided on the optical recording layer forming surface side of the intermediate layer. In a card which is sandwiched between a backing substrate provided on the opposite surface side and records / reproduces information through a transparent substrate, a colored ink layer and a transparent ink layer are provided on the side opposite to the intermediate layer of the backing substrate. A resin layer is sequentially provided, a magnetic stripe is further provided on the transparent resin layer, and a visible image using a sublimable or hot-melt transferable dye is provided without an image receiving layer.

Here, the transparent resin layer is made of a polyvinyl chloride resin having a thickness of 20 μm to 50 μm. As a visible image, a transfer ribbon made of a sublimable or hot-melt transferable dye is transferred and printed without an image receiving layer. Further, as the visible image, characters such as the name of the card user and a photograph of the face of the card user are provided.

[0009]

Therefore, in the card of the present invention, a card having various information such as medical data and also having a conventional ID function can be obtained. Security can be improved by matching the magnetic recording information and the visible information. Further, since the transparent resin layer is made of a polyvinyl chloride resin having a thickness of 20 μm to 50 μm, the transparent resin layer usually has a thickness of 15 μm.
A magnetic stripe with a thickness of about the same level can be embedded flush with the card surface, and a visible image with a sublimable or hot-melt transferable dye without an image receiving layer without being affected by the pigment of the ink at all. Can be provided. Furthermore, since the thickness of the transparent resin layer is much thinner than other substrates, even if different materials are combined, there is no warpage of the card due to the environment, and there is no trouble in reading.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below in detail with reference to the drawings.

FIGS. 1 to 3 show an embodiment of a medical optical card according to the present invention. FIG. 1 is a plan view (surface view) showing an example of the configuration of the optical card, and FIG. FIG. 3 is a bottom view (back view) showing a configuration example of the card, and FIG. 3 is a cross-sectional view showing a configuration example of the optical card. That is, in this embodiment, the adhesive layer 2 which is an intermediate layer on which the optical recording layer 1 is formed is replaced with the transparent substrate 3 provided on the side of the adhesive layer 2 on which the optical recording layer 1 is formed.
And the backing substrate 4 provided on the opposite side thereof, and the recording / reproducing of information through the transparent substrate 3 is performed in an optical card, on the side opposite to the adhesive layer 2 of the backing substrate 4. A colored ink layer 5 and a transparent resin layer 6 are successively provided, and a magnetic stripe 7 is transferred and provided on a part of the transparent resin layer 6, and sublimation or heat melting is performed without an image receiving layer on other parts. The transfer ribbon made of the migrating dye is transferred and printed to provide characters such as the name of the card user and a visible image 8 such as a photograph of the face of the card user.

Here, the optical recording material of the optical recording layer 1 is not particularly limited.
Metals and alloys such as i, Sn, Se, Pb, Te-Te
A combination of a metal such as O and a metal oxide, a dye such as cyanine, phthalocyanine, and azaannulene and a dye binder system can be used.

The material (adhesive) of the adhesive layer 2 is preferably a material suitable for various physical properties such as adhesive strength in consideration of the transparent substrate 3, the backing substrate 4, and the optical recording layer 1. For example, an adhesive such as an epoxy-based, acrylic-based, or polyester-based adhesive can be used.

Further, the material of the transparent substrate 3 has a high transmittance in a wavelength range of a laser beam to be used, satisfies desired optical, physical, mechanical and chemical properties, and is deformed in a later step. The material is not particularly limited as long as it does not cause deterioration or deterioration. For example, polycarbonate, polymethyl methacrylate (PMMA), polyester, or the like can be used.

On the other hand, the material of the backing substrate 4 is not particularly limited as long as it satisfies desired physical, mechanical and chemical properties. For example, polycarbonate, polymethyl methacrylate (PMMA) ), Polyester and the like.

The material of the resin used for the ink of the colored ink layer 5 is preferably determined in consideration of the adhesive strength between the backing substrate 4 and the transparent resin layer 6 and the like. And vinyl chloride-vinyl acetate copolymer resin.

Further, as a material of the transparent resin layer 6, a polyvinyl chloride resin capable of providing a visible image with a transfer ribbon made of a sublimable or hot-melt transferable dye without an image receiving layer can be used. However, from the thickness of the magnetic stripe described later, a thickness of 20 μm to 50 μm is required, and it is preferable to use a sheet manufactured in a separate process, rather than providing by coating. Further, a single layer may be provided between the colored ink layer 5 and the transparent resin layer 6 in order to enhance the adhesiveness with the colored ink layer 5.

Here, as the sublimable or hot-melt transferable dye, for example, the following can be used. That is, when specifically expressed by a color index, first, Disperse Yellow is used as yellow.
w54, Disperse Yellow8, Dispe
rs Yellow 3, Disperse Yellow
ow7, Disperse Yellow51, Dis
perseYellow64, Disperse Ye
llow71 and the like. Also, Red is Dis
Perse Red 59, Disperse Red 4,
Disperse Red15, Disperse R
ed60, DisperseRed11, Solven
t Red19, DisperseRed3, Disp
erse Red9, Disperse Red22,
Disperse Violet 26 and the like. Furthermore, as blue, Solvent Blue 10
5, SolventBlue36, Solvent B
lue63, Disperse Blue14, Dis
perse Blue 19, Disperse Blue
e24, Solvent Blue 14, Solven
t Blue13, DisperseBlue5, So
lvent Blue 12, Disperse Blue
e1, Solvent Blue 11, and the like.

On the other hand, the magnetic stripe 7 has a size of 16 μm.
The transfer layer is transferred to the transparent resin layer 6 by using a transfer foil in which a magnetic paint is usually coated to a thickness of 15 μm to 20 μm on a PET base of m or 25 μm, and is leveled by hot pressing.

Next, a more specific embodiment of the optical card of the present invention will be described.

The size of the transparent substrate 3 is 12 cm ×
An acrylic (PMMA) sheet having a thickness of 9 cm and a thickness of 0.4 mm was used, and the guide groove was duplicated by a hot press method using a Ni stamper having a guide groove having a length of 81 mm (recording area 80 mm) formed on the surface thereof. In this case, the guide grooves have a pitch of 12 μm, a width of 2.5 μm, and a total of 2500 guide grooves.

Next, on the guide groove surface side, Te was vapor-deposited to a thickness of 300 Å by a resistance heating method to form an optical recording layer 1.

On the other hand, the size of the backing substrate 4 is 1
2cm x 9cm, 0.2mm thick acrylic (PMM
A) Using a sheet, a character or picture (colored ink layer 5) is formed on a 270 mesh screen plate with a screen ink composed of a vinyl chloride-vinyl acetate copolymer resin on a surface of which is 12 cm in size. A polyvinyl chloride sheet having a size of 9 cm and a thickness of 0.05 mm is placed thereon, the magnetic stripe 7 is temporarily fixed, and a hot press method (temperature: 14 degrees Celsius)
(0 degree).

Next, the acrylic surface side of the backing substrate 4 is adhered to the optical recording layer 1 previously provided via an epoxy-based adhesive, and after curing, is punched out to a card size of 85.5 mm × 54 mm to emit light. Got a card.

Further, a transfer temperature: 300 degrees Celsius and a transfer time of 0.01 on a back surface of the optical card by using a transfer ribbon having the following composition by a hot stamping machine.
When the transfer pressure was set to 4 kg / cm ² for ² seconds and the pattern was etched and printed by a metal stamper, a beautiful pattern was obtained and a friction test was carried out, but no dye was removed. Also, even when left in an environment of a temperature of 40 degrees Celsius and a relative humidity of 90% for 48 hours, almost no warpage occurred.

(A) Composition of ink layer Disperse dye (Kayaset Blue FR: manufactured by Nippon Kayaku) 10 parts by weight Polyvinyl butyral (BX-1: manufactured by Sekisui Chemical) 8 parts by weight isocyanate (D70: manufactured by Dainichi Seikasei) 2 Parts by weight ethyl cellulose (N-7: Hercules) 2 parts by weight toluene 30 parts by weight MEK 30 parts by weight isopropyl alcohol 18 parts by weight (prepared by stirring and mixing with a homomixer for 30 minutes) (b) Composition of surfactant layer Alkyl phosphate ester type (TRL-20: Matsumoto Yushi) 3 parts by weight Ethyl alcohol 47 parts by weight Water 50 parts by weight (c) Composition of heat-resistant backcoat layer 65 parts by weight MEK 34 parts by weight Silicon (KS770A: Shin-Etsu Chemical Co., Ltd.) 1 part by weight Curing agent (PL-8: manufactured by Shin-Etsu Chemical Co., Ltd.) 0.08 parts by weight (30 minutes with a homomixer) As described above, in the present embodiment, the adhesive layer 2 which is an intermediate layer on which the optical recording layer 1 is formed is provided on the side of the adhesive layer 2 on which the optical recording layer 1 is formed. In an optical card which is sandwiched between a transparent substrate 3 provided and a backing substrate 4 provided on the opposite side thereof to record and reproduce information through the transparent substrate 3, an adhesive layer of the backing substrate 4 is provided. 2, a colored ink layer 5 and a transparent resin layer 6 are sequentially provided on the side opposite to 2,
Further, a magnetic stripe 7 is transferred and provided on a part of the transparent resin layer 6, and a transfer ribbon made of a sublimable or hot-melt transferable dye is transferred and printed on another part without an image receiving layer, so that a card user And a visible image 8 such as a face photograph of the card user.

Therefore, it has a large amount of information storage capacity for medical data and the like, and also has a conventional ID function, and has optical recording information (optical recording layer 1) on the front surface of the card and magnetic recording information (magnetic stripe 7) on the back surface of the card. ), Visible information (visible image 8)
Can also improve security. Further, when the transparent resin layer 6 has a thickness of
Since it is made of a polyvinyl chloride resin having a thickness of μm, the magnetic stripe 7 having a thickness of usually about 15 μm can be buried flush with the surface of the card, and can be sublimated or transferred by heat melting without an image receiving layer. The visible image 8 formed by the transfer ribbon made of a coloring dye can be clearly provided without being affected by the pigment of the ink.
Further, since the thickness of the transparent resin layer 6 is much thinner than other substrates, even if different materials are combined, there is no warpage of the card due to the environment, and there is no trouble in reading.

In the above embodiment, the case where the present invention is applied to a medical optical card has been described. However, the present invention can be applied to other cards in the same manner.

[0029]

As described above, according to the present invention, at least the intermediate layer on which the optical recording layer is formed is provided on the transparent substrate provided on the optical recording layer forming surface side of the intermediate layer and on the opposite surface side. In a card which is sandwiched between provided backing substrates and records / reproduces information through a transparent substrate, a coloring ink layer and a transparent resin layer are sequentially provided on the side opposite to the intermediate layer of the backing substrate. Further, on the transparent resin layer, while providing a magnetic stripe, so as to provide a visible image by a sublimable or hot-melt transferable dye without an image receiving layer, light transmission, optical properties such as birefringence,
While having desired mechanical and thermal properties and satisfying requirements such as not causing deformation or deterioration in a later step, the magnetic stripe can be embedded flush with the card surface, and the sublimation or An extremely reliable card capable of clearly providing visible information by the hot-melt transferable dye can be provided.

[Brief description of the drawings]

FIG. 1 is a plan view (front view) showing an embodiment of an optical card according to the present invention.

FIG. 2 is a bottom view (back view) of the optical card in the embodiment.

FIG. 3 is a sectional view of the optical card in the embodiment.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Optical recording layer, 2 ... Adhesive layer, 3 ... Transparent substrate, 4 ... Backing substrate, 5 ... Colored ink layer, 6 ... Transparent resin layer, 7 ... Magnetic stripe, 8 ... Photograph.

Claims (4)

(57) [Claims] An intermediate layer on which at least an optical recording layer is formed is sandwiched between a transparent substrate provided on the optical recording layer forming surface side of the intermediate layer and a backing substrate provided on the opposite surface side. In a card configured to perform recording and reproduction of information through the transparent substrate, a colored ink layer and a transparent resin layer are sequentially provided on the side opposite to the intermediate layer of the backing substrate, and further on the transparent resin layer, A card comprising a magnetic stripe and a visible image formed by a sublimable or hot-melt transferable dye without an image receiving layer. 2. The transparent resin layer has a thickness of 20 μm.
2. The card according to claim 1, wherein the card is made of a polyvinyl chloride resin having a size of m to 50 [mu] m. 3. The card according to claim 1, wherein a transfer ribbon made of a sublimable or hot-melt transferable dye is transferred and printed as the visible image without an image receiving layer. 4. The card according to claim 1, wherein the visible image includes characters such as a name of a card user and a photograph of the face of the card user.