JPH04299195A - Card - Google Patents

Abstract

PURPOSE:To provide a distinct visual information by successively providing a colored ink layer and transparent resin layer on the surface side opposite to the intermediate layer of a backing substrate in a card having an intermediate layer with an optical recording layer formed therein and by providing a magnetic stripe, on said colored ink and transparent resin layers. CONSTITUTION:In an optical card, a mounting agent layer 2 being an intermediate layer with an optical recording layer 1 formed therein is held between a transparent substrate 3 provided on the optical recording layer 1-forming surface side of the mounting agent layer and a backing substrate 4 provided on the surface side opposite to the former side so that information is recorded and reproduced through the transparent substrate 3. In this case, a colored ink layer 5 and transparent resin layer 6 are successively provided on the surface side opposite to the adhesive layer 2 of the backing substrate 4 and further a magnetic stripe 7 is provided by transfer onto a part of the transparent resin layer 6. Also, other parts are provided with characters such as card user's full name and visible image 8 such as photograph of said card user's face transferred and printed through a transfer ribbon composed of sublimable or hot-melt migration dye and without image-receiving layer.

Description

[Detailed description of the invention]

0001

[Industrial Application Field] The present invention relates to an optical card capable of optically reading only information or additionally writing and reading information, and in particular, a card having a magnetic stripe and visible images such as letters, photographs, etc. on the back of the card. It is related to.

0002

2. Description of the Related Art In place of magnetic cards, which have heretofore been widely used as cash cards, credit cards, etc., optical cards, which have a larger storage capacity than magnetic cards, have recently been proposed. The general structure of this optical card is that at least a backing substrate, an optical recording layer, and a transparent substrate are sequentially laminated.
It records and reproduces information. This type of optical card has been attracting attention as it is suitable mainly for medical cards due to its large storage capacity.

0003

[Problem to be Solved by the Invention] However, when exchanging data such as adding an ID function to a conventional card that does not require a large storage capacity to such a medical optical card, it is necessary to attach a magnetic It has been proposed to provide a stripe, and also to provide visible information such as the face photo and name of the patient using the card on the back to visually identify the patient.
The reality is that its production has not yet been put into practical use.

The reason for this 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 commonly called a center core, and the front and back sides are made of transparent polyvinyl chloride resin. A sheet is placed, a magnetic stripe is temporarily fixed on it, thermal lamination is performed, the magnetic stripe is embedded, and then visible information is provided by a printing method using a transfer ribbon made of a sublimable or heat-melting migration dye without an image-receiving layer. However, optical cards have strict requirements such as having optical properties such as light transparency and birefringence, and not causing deformation or deterioration in subsequent processes. This is because the conventional polyvinyl chloride resin for the substrate is insufficient, and it is necessary to combine it with other materials, including polyvinyl chloride resin.

[0005] Due to the above-mentioned circumstances, there has recently been a strong demand for cards that meet these uses and conditions.

The present invention was made to solve the above-mentioned problems, and has optical properties such as light transmittance and birefringence, as well as desired mechanical and thermal properties. While satisfying requirements such as not causing deformation or deterioration during the process, it is possible to embed a magnetic stripe flush on the card surface, and it is also possible to clearly provide visible information using sublimable or heat-melting migration dyes. The aim is to provide extremely reliable cards.

[0007]

[Means for Solving the Problems] In order to achieve the above object, in the present invention, at least an intermediate layer on which an optical recording layer is formed is connected to a transparent substrate provided on the optical recording layer forming side of the intermediate layer. In a card that is sandwiched between a backing substrate provided on the opposite side and information is recorded and reproduced through the transparent substrate, a colored ink layer and a transparent Resin layers are successively provided, and a magnetic stripe is provided on the transparent resin layer, and a visible image is provided using a sublimable or heat-melting transferable dye without an image-receiving layer.

[0008] In particular, the transparent resin layer is made of polyvinyl chloride resin with a thickness of 20 to 50 μm. Further, as a visible image, a transfer ribbon made of a sublimable or heat-melting transferable dye is used to transfer and print without an image-receiving layer. Further, as visible images, characters such as the name of the card user and a photograph of the card user's face are provided.

[0009]

[Operation] Therefore, in the card of the present invention, it is possible to obtain a card that has a large amount of information such as medical data, and also has a conventional ID function, and the optical recording information on the front side of the card and the optical record information on the back side of the card can be obtained. Security can be improved by matching magnetically recorded information and visible information. In addition, since the transparent resin layer is made of polyvinyl chloride resin having a thickness of 20 μm to 50 μm, the thickness is usually 15 μm.
It is possible to embed a magnetic stripe with a certain thickness on the card surface flush with the surface of the card, and to create a clear visible image using sublimable or heat-melting transferable dyes without an image-receiving layer, without being affected by the pigments in the ink. can be provided. Furthermore, since the thickness of the transparent resin layer is much thinner than other substrates, even when different materials are combined, the card does not warp due to the environment and there is no problem with reading.

0010

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

1 to 3 are diagrams showing 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 structure of the optical card, and FIG. FIG. 3 is a bottom view (back view) showing an example of the structure of the card, and FIG. 3 is a sectional view showing an example of the structure 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 placed between the transparent substrate 3 provided on the surface of the adhesive layer 2 on which the optical recording layer 1 is formed, and the opposite surface thereof. In an optical card which is sandwiched between a backing substrate 4 provided on the side and information is recorded and reproduced through the transparent substrate 3, a colored ink layer is provided on the side opposite to the adhesive layer 2 of the backing substrate 4. 5, and a transparent resin layer 6 are sequentially provided, and a magnetic stripe 7 is transferred and provided on a part of the transparent resin layer 6, and the other part is made of a sublimable or heat-melting migration dye without an image-receiving layer. The transfer ribbon 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 card user's face.

[0012] Here, the optical recording material of the optical recording layer 1 is not particularly limited, and includes, for example, Te, Bi,
Metals and alloys such as Sn, Se, and Pb, combinations of metals and metal oxides such as Te-TeO, pigments and pigment binder systems such as cyanine, phthalocyanine, and azaannulene can be used.

Furthermore, the material (adhesive) for the adhesive layer 2 is preferably one that is suitable for various physical properties such as adhesive strength, taking into consideration the transparent substrate 3, backing substrate 4, and optical recording layer 1. For example, an epoxy adhesive, an acrylic adhesive, a polyester adhesive, or the like can be used.

Furthermore, the material of the transparent substrate 3 should have high transmittance in the wavelength range of the laser beam used, satisfy the desired optical, physical, mechanical, and chemical properties, and be suitable for deformation in later steps. The material is not particularly limited as long as it does not cause deterioration or deterioration, and for example, polycarbonate, polymethyl methacrylate (PMMA), polyester, etc. can be used.

On the other hand, the material of the backing substrate 4 is not particularly limited as long as it satisfies the desired physical, mechanical, and chemical properties; for example, polycarbonate, polymethyl methacrylate (PMMA), etc. ), polyester, etc. can be used.

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 is, for example, polyester, polyvinyl chloride, etc. , a vinyl chloride-vinyl acetate copolymer resin system, etc. can be used.

Furthermore, as the material for the transparent resin layer 6, polyvinyl chloride resin can be used, which makes it possible to provide a visible image with a transfer ribbon made of a sublimable or heat-melting transferable dye without an image-receiving layer. 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 produced in a separate process rather than providing it by coating. Moreover, in order to improve the adhesiveness with the colored ink layer 5, one layer may be provided between the colored ink layer 5 and the transparent resin layer 6.

[0018] Here, as the sublimable or heat-melting migration dye, for example, the following can be used. Specifically, when expressed in color index, first of all, yellow is Disperse Yellow.
ow54, Disperse Yellow8, Disp
erse Yellow3, Disperse Y
yellow7, Disperse Yellow51
, DisperseYellow64, Dispers
e Yellow 71 etc. In addition, as for red, Disperse Red59, Disperse
eRed4, Disperse Red15, Dis
perse Red60, Disperse Red1
1, Solvent Red19, Disperse
Red3, Disperse Red9, Dispe
rse Red22, Disperse Viol
et26 etc. Furthermore, as blue, Solv
ent Blue105, SolventBlue3
6, Solvent Blue63, Dispers
e Blue14, Disperse Blue1
9, Disperse Blue24, Solven
t Blue14, Solvent Blue13
, DisperseBlue5, Solvent B
lue12, Disperse Blue1, Sol
There are vent Blue11, etc.

On the other hand, the magnetic stripe 7 is 16μ
Using a transfer foil coated with a magnetic paint to a thickness of usually 15 to 20 μm on a PET base of 25 μm or 25 μm, the film is transferred onto the transparent resin layer 6 and made flush by hot pressing.

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

[0021] The size of the transparent substrate 3 is 12 cm x
An acrylic (PMMA) sheet having a size of 9 cm and a thickness of 0.4 mm was used, and a Ni stamper having a guide groove of 81 mm in length (recording area of 80 mm) formed on the surface of the sheet was used to duplicate the guide groove by a hot press method. In this case, the size of the guide grooves is 2500 in total, with a pitch of 12 μm and a width of 2.5 μm.

Next, on the guide groove surface side, Te was deposited to a thickness of 300 angstroms by resistance heating to form the 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) A sheet is used, and a screen ink made of vinyl chloride-vinyl acetate copolymer resin is applied to the surface of the sheet.
), a polyvinyl chloride sheet with a size of 12 cm x 9 cm and a thickness of 0.05 mm was placed on top of it, the magnetic stripe 7 was temporarily fixed, and a heat press method (temperature: 140 degrees Celsius) was formed.
Transfer lamination was performed using the following methods.

Next, the acrylic surface side of the backing substrate 4 is adhered to the previously provided optical recording layer 1 using an epoxy adhesive, and after curing, it is punched out into a card size of 85.5 mm x 54 mm and optically recorded. Got the card.

[0025] Further, a transfer ribbon having the following composition was applied to the back side of the optical card using a hot-stamping machine at a transfer temperature of 300 degrees Celsius and a transfer time of 0.01.
Transfer printing was performed using a metal stamper etched with a design using a transfer pressure of 4 kg/cm2.
A beautiful pattern was obtained, and a friction test was performed, but the dye could not be removed. In addition, even when left for 48 hours in an environment with a temperature of 40 degrees Celsius and a relative humidity of 90%, almost no warping occurred.

(a) Composition of ink layer Disperse dye (Kayaset Blue FR: manufactured by Nippon Kayaku)
10 parts by weight polyvinyl butyral (BX-1: Sekisui Chemical)
8 parts by weight isocyanate (D70: manufactured by Dainichisei Kasei)
2 parts by weight ethyl cellulose (N-7: manufactured by Hercules)
2 parts by weight toluene

30 parts by weight
M.E.K.

30 parts by weight isopropyl alcohol
18 parts by weight (Created by stirring and mixing in a homomixer for 30 minutes) (b)
Composition of surfactant layer

Alkyl phosphate ester type (TRL-2
0: Matsumoto Yushi Co., Ltd.) 3 parts by weight Ethyl alcohol
47 parts by weight water

50 parts by weight (
c) Composition of heat-resistant back coat layer

toluene

65 parts by weight MEK

34 parts by weight Silicon (KS770A: Shin-Etsu Chemical) 1 part by weight Curing agent (PL-8: Shin-Etsu Chemical)
0.08 parts by weight (Created by stirring and mixing in a homomixer for 30 minutes) As described above, in this example, the adhesive layer 2, which is the intermediate layer on which the optical recording layer 1 is formed, is a transparent substrate 3 provided on the side of the layer 2 on which the optical recording layer 1 is formed;
In an optical card which is sandwiched between a backing substrate 4 provided on the opposite side of the transparent substrate 3 and information is recorded and reproduced through the transparent substrate 3, on the side opposite to the adhesive layer 2 of the backing substrate 4, Colored ink layer 5 and transparent resin layer 6
A magnetic stripe 7 is transferred to a part of the transparent resin layer 6, and a transfer ribbon made of a sublimable or heat-melting transferable dye is transferred and printed on the other part without an image-receiving layer. , characters such as the card user's name,
A visible image 8 such as a facial photograph of the card user is also provided.

Therefore, it has a large amount of information storage capacity such as medical data, and also has a conventional ID function. ), visible information (visible image 8)
It is also possible to improve security by matching. Moreover, the transparent resin layer 6 has a thickness of 20 μm to 50 μm.
Since it is made of polyvinyl chloride resin with a thickness of 15 μm, it is possible to embed the magnetic stripe 7, which usually has a thickness of about 15 μm, flush on the card surface, and it can be sublimated or thermally melted without an image-receiving layer. It becomes possible to clearly provide a visible image 8 using a transfer ribbon made of a color dye without being affected by the pigment of the ink. Furthermore, since the thickness of the transparent resin layer 6 is much thinner than other substrates, even if different materials are combined, the card will not warp due to the environment and there will be no trouble in reading the card.

In the above embodiment, the present invention is applied to a medical optical card, but the present invention can be applied to other cards in exactly the same manner.

[0029]

As explained above, according to the present invention, the intermediate layer on which at least the optical recording layer is formed is placed between the transparent substrate provided on the optical recording layer forming surface of the intermediate layer and the opposite surface thereof. In a card which is sandwiched between a backing substrate provided and information is recorded and reproduced 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. Furthermore, a magnetic stripe is provided on the transparent resin layer, and a visible image is provided using a sublimable or heat-melting migration dye without an image-receiving layer, so that optical properties such as light transmittance and birefringence,
It is possible to embed the magnetic stripe flush on the card surface while satisfying the requirements such as having the desired mechanical and thermal properties and not causing deformation or deterioration in subsequent processes, and also has sublimation property or It is possible to provide an extremely reliable card that can clearly provide visible information using a heat-melting migration dye.

[Brief explanation of drawings]

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

[Figure 2] Bottom view (back view) of the optical card in the same embodiment
.

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

[Claims] Claim 1: 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 side of the intermediate layer and a backing substrate provided on the opposite side. In the card in which information is recorded and reproduced 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 characterized in that it is provided with a magnetic stripe and a visible image made of a sublimable or thermally meltable dye without an image-receiving layer. 2. The transparent resin layer has a thickness of 20 mm.
The card according to claim 1, characterized in that it is made of a polyvinyl chloride resin with a diameter of .mu.m to 50 .mu.m. 3. The card according to claim 1, wherein the visible image is printed using a transfer ribbon made of a sublimable or heat-melting transferable dye without an image-receiving layer. 4. The card according to claim 1, wherein the visible image includes characters such as the name of the card user and a facial photograph of the card user.