JP6551140B2 - Card and method of manufacturing card - Google Patents

Description

The present invention relates to a card and a method of manufacturing the card. More specifically, the present invention relates to a card in which the side surface of the card emits light in a dark place by using a transparent sheet as an intermediate layer of the card substrate and having a printing layer of phosphorescent pigment on both sides thereof, and a method of manufacturing them.

Generally, the card has a display of common and specific information on the surface, and is usually handled under sunlight or artificial lighting. However, at night, it may be necessary to operate the card in a dark place without lighting.
In such a case, the fact that the side of the card can be confirmed by emitting light can recognize the presence of the card and facilitate handling. Although the side of the card emits light slightly, it can perform a lighting function and enhance the design effect of the card.
It is also preferable that specific information on the card surface emits light, and it is conceivable to display with a phosphorescent pigment, but it is generally difficult to convert the phosphorescent pigment into an ink and print the specific information with fine characters and the like. In the present invention, an embodiment in which unique information is displayed on a card by means other than printing characters and the like with a phosphorescent pigment is also included in the embodiment.

For this purpose, it is conceivable to use a base material obtained by kneading and forming a phosphorescent pigment on a card base material. However, kneading phosphorescent pigments on card base materials is generally disliked due to contamination of manufacturing equipment. Therefore, it is not adopted except for a very large amount of uses.
Therefore, the present invention intends to achieve such an object by using a material in which the phosphorescent pigment is converted into an ink without kneading the phosphorescent pigment on the card base material.

Conventionally, there are two types of phosphorescent pigments: "self-luminous" and "phosphorescent". Although it is possible for the self-luminous luminescent pigment to emit light constantly at night by radiation, it contains radioactive materials, so there are limitations on its use and strict control is required for production and disposal.
Conventional luminous phosphorescent pigments are not practical because they do not contain radioactive materials and cannot emit light for a long time. For example, although a zinc sulfide type (ZnS: Cu) is widely used for a luminous paint, the afterglow does not have such a brightness as visible overnight, and there is a problem that the light resistance is poor and it can not be used outdoors.

Developed by Nemoto Special Chemical Co., Ltd., “N Yoko Luminova (registered trademark)” is based on an aluminate compound, and by adding a rare earth element activator to this and firing it, it is the first It is a material that has 10 times the brightness and 10 times the afterglow brightness. Light absorption-emission-absorption-emission can be repeated any number of times, and since these are oxides based on alumina, they are excellent in light resistance and can be used outdoors under direct sunlight. .
The organic fluorescent pigment is made of an organic material, but emits fluorescence while receiving ultraviolet light such as black light, and stops light emission except for excitation light, and the light emission lasts even after the excitation light is stopped. It is a material different from pigments.

There exists patent document 1 in the prior art which makes a card base material contain a luminous pigment and makes a card | curd visible in a dark place. However, it is difficult to knead and mold the luminous pigment in the resin material of the card base material, and it is not generally practiced except for a large amount of use. Further, it does not describe that the intermediate layer of the card emits light.
Patent Document 2 discloses a prior art of a card that emits light by forming a normal print layer on a light-emitting print layer using a printing ink containing a phosphorescent pigment. However, since this normal printing layer prints using a printing plate, it is difficult to display personal specific information. It is likewise not described that the intermediate layer of the card emits light.

Japanese Patent Application Laid-Open No. 9-315045 Japanese Patent Application Laid-Open No. 9-315047

A transparent sheet, which is an intermediate layer of a card substrate, is illuminated by the light from the phosphorescent print layer printed on the front and back to make it bright and visible in the dark, to easily recognize the presence of the card in the dark, and to facilitate handling. The challenge is to provide cards with improved design.

The personal information on the card surface or the display necessary for card operation, etc., can be continuously visible even in the dark by the phosphorescent pigments made into printing ink. The subject is to make it possible to visually identify personal information etc. by making the printing layer formed on the phosphorescent printing layer into a character without characters or patterning it, instead of patterning the phosphorescent pigment ink itself and printing it. Do.

According to a first aspect of the present invention, a transparent sheet is disposed as an intermediate layer of a card, a white sheet is laminated on both sides of the transparent sheet, and a transparent oversheet is laminated on the outer surface of both white sheets. In the card, the luminous print layer is formed on the front surface and back surface of the transparent sheet as the intermediate layer, or on the front and back surface along at least the peripheral edge.

According to a second aspect of the present invention, a transparent sheet is disposed as an intermediate layer of a card, a white sheet having a luminous print layer formed on one side of the transparent sheet, and a white sheet laminated on the other side. A transparent oversheet having a design layer on the outer surface of the phosphorescent print layer of the side white sheet, and part of the characters and symbols in the pattern layer being blank letters and symbols is laminated, and the other side of the side white sheet is transparent transparent The card according to the present invention is a card on which sheets are laminated, and a luminous print layer is formed on the entire front or back of the transparent sheet as the intermediate layer or on the front and back along at least the peripheral edge.

In the above, the phosphorescent printing layer can be made of a printing layer of silk screen ink containing non-sulfide type phosphorescent pigment, and the phosphorescent printing layer of the white sheet is at least the lower surface of the cutout character / symbol. It can also be formed in the part. In addition, it is possible to make the extracted characters relate to individual unique information.

The third of the gist of the present invention is (1) a step of forming a luminous print layer on the front or back surface of the transparent sheet as an intermediate layer of the card, or on the front or back surface along at least the periphery, (2) the transparent sheet Temporarily stacking white sheets on both sides of the phosphorescent printing layer, (3) temporarily stacking a transparent oversheet on the outer surface of both white sheets on the front and back sides, (4) the transparent sheet and the white sheet, and the transparent over A method of manufacturing a card, comprising: a step of hot pressing a temporary stack of sheets to form a card substrate that is integrally adhered and laminated.

The fourth of the gist of the present invention is (1) a step of forming a phosphorescent printing layer by silk screen printing on the entire front or back of the transparent sheet which is an intermediate layer of the card, or on the front or back along at least the peripheral edge, (2) the transparent sheet Temporarily laminating the phosphorescent print layer of the white sheet having the phosphorescent print layer formed on one side on one side of the phosphorescent print layer, and (3) a white sheet on the other side of the phosphorescent print layer of the transparent sheet. Temporary stacking step (4) temporary stacking of a transparent oversheet on the outer surface of both the white sheet on both the front and back sides, (5) a hot-pressing of the temporary stack of the transparent sheet and the white sheet and the transparent oversheet And (6) forming a picture layer on the transparent oversheet on the display surface side of the card. , Located in.

In the above, it is possible to have a letter / symbol in the picture layer, and a step of laser engraving the letter to make the letter after the formation of the picture layer can be provided. Alternatively, the missing characters may be related to the individual's unique information, and the phosphorescent printing layer may be made of a printing layer of silk screen ink containing non-sulfide type phosphorescent pigment.

It is sectional drawing of the card | curd of a 1st form. It is a perspective view of the card of the 1st form. It is sectional drawing of the card | curd of a 2nd form. It is a perspective view of the card of the 2nd form. It is a figure which shows the layer structure of a pattern transfer film. It is a figure which shows the state which carries out the laser engraving of the pattern layer.

Hereinafter, description will be made with reference to the drawings. FIG. 1 is a cross-sectional view of the card of the first embodiment. Although each layer is shown in a disassembled laminated state, in actuality, the respective layers are in close contact with each other.
As shown in FIG. 1, the card 1 has an intermediate layer made of a transparent sheet 11 and is disposed substantially at the center of the card 1. White sheets 12 and 15 are laminated on both side surfaces of the transparent sheet 11, and transparent oversheets 13 and 16 are laminated on the outer sides of both the white sheets 12 and 15. The term "laminated" means that the sheets are heat-sealed or in close contact with an adhesive.

A feature of the card 1 is that phosphorescent print layers 111 and 112 are formed on the entire surface or at least the front and back surfaces along the periphery on the front and back surfaces of the transparent sheet 11. The reason for using the front and back surfaces along at least the peripheral edge is to make the entire circumference of the transparent sheet 11 appear to shine. Therefore, even if the luminous print layer is not formed on the entire surface, the luminous print layer is formed on the front and back of at least the range along the periphery of the transparent sheet 11 (the range from 0 to 20 mm from the periphery (but not including 0)) If it is done, it can play an effect.
The luminous printing layers 111 and 112 are layers printed by silk screen ink containing a luminous pigment. The reason why silk screen printing is used is because it is suitable for thick printing. Usually, it should just be printed by the thickness before press about 10-50 micrometers (preferably 28-32 micrometers).
In addition, the purpose of making the intermediate layer into the transparent sheet 11 is to give the role as a light guide sheet to transmit the excitation light (ultraviolet light) incident from any side of the sheet, and The purpose is to guide the light emitted by the phosphorescent print layers 111 and 112 on the front and back to the periphery.

FIG. 2 is a perspective view of the card of the first form. FIG. 2 (A) shows the case when viewed in bright light, and FIG. 2 (B) shows the case viewed in dark.
As shown in FIG. 2 (A), the card 1 usually has a rectangular plate-like appearance. Generally, it is a card (ID-1 type) of wallet size specified in ISO7810, but it is not particularly limited to this size.
Each sheet mentioned above is temporarily stacked in a large-sized multi-faced state, and then brought into close contact by applying heat pressure, and then cut into a card size, so that the peripheral edge of each sheet is exposed in the cross section of the card. It is done. Naturally, the peripheral edge of the transparent sheet 11 is also exposed on the side surface, and excitation light (ultraviolet light) that activates the phosphorescent printing layers 111 and 112 is guided to the inside.
Since the front and back of the transparent sheet 11 are white sheets 12 and 15 and the phosphorescent printed layers 111 and 112 also have many bright colors, excitation light (ultraviolet light) incident from any peripheral edge of the transparent sheet 11 is a layer of the transparent sheet 11. It is easy to repeat reflection inside and reach the other peripheral luminous printing layer.
When the card 1 is placed in the dark, the peripheral edge of the transparent sheet 11 looks bright as shown in FIG. 2 (B). This is because the luminous print layers 111 and 112 on the front and back of the transparent sheet 11 emit light.

FIG. 3 is a cross-sectional view of the card of the second embodiment. Although each layer is shown in a disassembled state, in actuality, each layer is in close contact.
As in the first embodiment, the card 1 has an intermediate layer made of a transparent sheet 11 and is disposed substantially in the central layer of the card 1. Similarly, the phosphorescent printed layers 111 and 112 are formed on the entire surface or at least the front and back surfaces along the periphery on the front and back surfaces of the transparent sheet 11.
However, in the case of the second embodiment, the white sheet 12 in which the luminous print layer 121 is formed is laminated on the side surface of the luminous print layer 111, and the white sheet 15 is laminated on the other side of the luminous print layer 112. . The white sheet 15 is not formed with a phosphorescent printing layer.
Furthermore, the transparent oversheet 13 is laminated on the side surface of the light storing printed layer 121 of the white sheet 12. The outermost layer of the transparent oversheet 13 has a pattern layer 14 including characters and symbols. Some of the characters / symbols are omitted characters. A blank character is a character shape that is formed in a pattern with no ink in the pattern. In addition to the case in which the pattern is blank from the beginning, the pattern part is scratched or laser engraved to make it blank. Also includes.
A white sheet 15 and a transparent oversheet 16 are laminated on the side surface of the phosphorescent print layer 112, respectively.

In the above description, the pattern layer 14 is usually transferred by a pattern transfer film, but may be a layer printed directly regardless of the transfer method. The phosphorescent printing layer 121 may be partially formed on the portion of only characters and symbols to be emitted. The luminous print layer 121 part which does not need to be made to emit light by the picture layer 14 is shielded. The pattern transfer film will be described later.

FIG. 4 is a perspective view of the card of the second form. FIG. 4 (A) shows a case where it is viewed in bright light, and FIG. 4 (B) shows a case where it is viewed in a dark place (darkness).
As shown in FIG. 4A, under bright illumination, on the surface of the card 1, in addition to the symbol 2d, characters 2m including personal information, a card number 2n, an expiration date 2k, and the like are displayed. In addition, a symbol necessary for the operation of the card, for example, a symbol 2s indicating the insertion direction of the card is also displayed.
Since all or part of the characters 2m and 2n and the symbol 2s are blank characters, it looks like a pale yellowish green, which is the body color of the phosphorescent pigment, which is covered with the phosphorescent printing layer 121. If the physical color of the phosphorescent pigment is difficult to see, it is necessary to devise the surrounding pattern so that it can be easily seen.

As in FIG. 4 (B), the peripheral edge of the transparent sheet 11 looks bright in the dark, as in FIG. 2 (B). In FIG. 4 (B), the card number 2n, which is a letter to be removed, the character 2m including personal information such as the user name, and the symbol 2s indicating the card insertion direction appear to shine along with the periphery of the transparent sheet 11. However, the pattern 2d and the like are not phosphorescent emitted.
The reason why these displays can be visually recognized in the dark is that the light emission of the phosphorescent printed layer 121 can be visually recognized because a part of the pattern layer 14 is removed and made into letters and symbols.

A part of the pattern layer 14 can be made from a blank character from the beginning, or can be engraved with a laser beam or mechanically scratched. Engraving with laser light is effective to extract individual personal information and make clear characters.

Next, a method of manufacturing the card 1 will be described.
In the claims, claim 1 requires an aspect in which only the side face of the card looks bright, and claim 2 an aspect in which the side face of the card and a part of the information display portion on the card surface appear shiny It is a requirement.
In the following, the aspect of claim 2 will be described. However, since the aspect of claim 1 does not use the picture layer 14 and the phosphorescent printed layer 121, it can be easily manufactured by analogy.

First, the card base 10 of the card 1 is manufactured. For this purpose, a material in which the phosphorescent printing layers 111 and 112 are printed on the entire surface or at least the peripheral portion of the transparent sheet 11 on both front and back sides, and a phosphorescent printing layer 121 on the side surface of the white sheet 12 facing the pattern layer 14 are entirely or partially formed. Prepare the printed material.
Printing is preferable because thick screen printing is possible by silk screen printing. For the ink, silk screen medium ink (vinyl chloride-vinyl acetate copolymer resin or the like) and a phosphorescent pigment are mixed at about 1: 1. The screen may be about 200 mesh.

The white sheet 12 and the white sheet 15 are applied to both sides of the transparent sheet 11 which is an intermediate layer, and transparent oversheets 13 and 16 are laminated on both sides of the sheet. Fuse to Thus, the card base 10 is completed.
Next, the design layer 14 is formed on the surface of the transparent oversheet 13 of the card 1. Although the formation of the pattern layer 14 can also be performed by direct printing, a transfer method is often used. Pattern transfer by the transfer method is performed using a pattern transfer film.

FIG. 5 is a diagram showing a layer structure of the pattern transfer film.
The pattern transfer film 20 is formed by forming a thin protective layer 22 on a transfer film substrate 21 such as polyethylene terephthalate (PET), and printing the pattern 23 on the surface of the protective layer 22 by offset printing or silk screen printing. A black or silver adhesive layer 24 is formed on the pattern 23 by silk screen printing. Since the adhesive layer 24 also serves as a concealing layer, it is made black or silver metallized.
The pattern layer 14 is formed by stacking the pattern transfer film 20 on the surface of the transparent oversheet 13 of the card substrate 10 and applying the heat pressure to make close contact. The substrate 21 is peeled off.
The pattern transfer may be performed simultaneously with the heat and pressure press of the card substrate 10.

Next, when laser engraving is performed, a laser beam is irradiated from the surface of the pattern layer 14 to perform a process of engraving a part of the pattern layer 14 with the laser beam. Thereby, the protective layer 22, the pattern 23, and the adhesive layer 24 are also engraved and removed. However, it is not necessary to engrave up to the transparent oversheet 13.
FIG. 6 is a view showing a state in which the pattern layer is laser-engraved, and FIG. 6 (A) is a state before engraving and FIG. 6 (B) is a state after engraving.
As shown in FIG. 6 (B), after the picture layer 14 is engraved, the phosphorescent print layer 121 is exposed through the transparent over sheet 13.

Laser engraving of the pattern layer 14 is performed using a card issuing machine. The card issuing machine uses a model equipped with a laser printing machine as one of various modules. In this case, a fiber laser (oscillation wavelength: 1.06 μm) is used for the laser beam.
The pulse energy is 10 mJ, and the size per one imprinted by the laser beam is 20 to 90 μm in diameter. The engraved depth can be changed by the output of the laser beam and the irradiation density dpi, but can usually be adjusted by the irradiation density dpi while keeping the output constant.
Engraving is performed for each card based on data stored in advance.
Finally, a card issuance process is performed to complete the card 1.

<Embodiment concerning material>
Next, the materials used for the card of the present invention will be described.
(Phosphorescent printing ink)
As a resin material which constitutes a luminous printing layer, resin with good transparency is preferred, and acrylic resin, vinyl chloride-vinyl acetate copolymer, polyester resin, urethane resin, epoxy resin, ultraviolet curable resin, electron beam curing property A thermoplastic resin such as a resin or a thermosetting or electron beam curable resin may be used. Note that the transparency required for the phosphorescent printed layer is at least transparent or translucent to the wavelength light that can stimulate it in the phosphorescent pigment to be used and to the light having a wavelength that emits afterglow. It is good if there is sex. In the SrAl ₂ O ₄ phosphorescent pigment described later, for example, the excitation light is light in the wavelength range of 200 to 450 nm, and the emission is light in the wavelength range of about 430 to 640 nm with a peak at 520 nm.
Moreover, the material which has the heat-sealing property with the surface side base material with respect to the luminous printing layer when hot-pressing is preferable. For example, for vinyl chloride based substrates, vinyl chloride-vinyl acetate copolymer based resins are suitable for this purpose.

(Card base material)
For the card substrate, polyethylene terephthalate (PET), hard vinyl chloride, amorphous aromatic polyester resin (PET-G resin), polycarbonate resin, polymer alloy resin of polycarbonate and PET-G resin, polyethylene resin Various materials such as polypropylene resin and acrylic resin can be used.
In order to obtain a predetermined card thickness, the total thickness of the card base 10 is made to be about 0.8 mm. In addition, it is preferable that the luminous pigment be a material having transparency or translucency to the wavelength light which can stimulate the luminous pigment and to the light of the wavelength which emits afterglow.

(Luminous pigment)
Next, the phosphorescent pigment contained in the phosphorescent printing layer is stimulated by sunlight, electric light, ultraviolet light and the like to store energy, and after the stimulation is stopped, the stored energy is converted to light to emit light. As such a pigment, there is a sulfide-based luminous pigment as a conventional one.
The phosphorescent pigment of sulfide contains zinc sulfide or the like as a base crystal and contains a small amount of impurities, that is, Cu, Bi or the like as an activator. Specifically, for example, ZnS: Cu (green light emission) And CaS: Bi (purple blue light emission), CaSrS: Bi (blue light emission), ZnCdS: Cu (yellow to orange light emission), etc., among which ZnS: Cu is a phosphorescent pigment for a yellow-green light emitting paint. It is well known. However, the afterglow time of zinc sulfide-based phosphorescent pigments is as short as 30 minutes to 2 hours at most, and a small amount of radioactive material such as Pm, Ra is added so that it can continue to emit light by permanent stimulation with radiation. Luminescent pigments have also been used.
However, the following phosphorescent pigments are more preferable than the above-mentioned phosphorescent pigments in that they exhibit extremely long afterglow time without using a radioactive substance in combination.

That is, a phosphorescent pigment is used, in which at least one metal element selected from the group consisting of strontium, calcium and barium is M, and a mother crystal is a compound represented by the chemical formula MAl ₂ O ₄ as a mother crystal. And usually, the afterglow time is lengthened by adding a small amount of an activator such as europium to the mother crystal, but if necessary, as a coactivator, manganese, bismuth, tin, or lanthanum, By adding a small amount of cerium, praseodymium, neodymium, samarium, gadolinium, terbium, dysprosium, holmium, erbium, thulium, ytterbium, ruthenium or the like, the afterglow time can be made longer. As specific phosphorescent pigments having such a metal oxide as a mother crystal, the following pigments can be used.

Table 1 shows the grade characteristics of “N Night Light (Luminova) registered trademark” manufactured by Nemoto Special Chemical Co., Ltd.
The compositional formula of G series (G-300C, G-300F, G-300FF, G-300L160, GLL-300M, GLL-300F) is SrAl ₂ O ₄ : Eu, Dy, and BG series (BG- The composition formula of 300 M, BGL-300 M) is Sr ₄ Al ₁₄ O ₂₅ : Eu, Dy. Moreover, the composition formula of the EG-300M _{is, SrAl 2 O 4: Eu,} Dy + Sr 4 Al 14 O 25: Eu, a Dy, composition formula B-300M _{is, Sr 4 A l4 O 25:} Eu, Dy + CaAl 2 O ₄ : Eu, Nd, and the composition formula of V-300M is CaAl ₂ O ₄ : Eu, Nd.

In Table 1, "body color" means the particle color in the non-emission state. “Luminescent color” indicates a color perceived visually. The average particle size “D50” means the media diameter. When the powder is divided into two parts from a certain particle diameter, the diameter is such that the larger side and the smaller side are equivalent.
"Low illumination" in the type of illumination intensity means low intensity illumination and short-term light storage, but the light emission duration is short. The afterglow brightness | luminance has shown the brightness | luminance (mcd / m < ² >) after 20 minutes and 60 minutes after irradiating with a common light source (200 lux) for 20 minutes.
In the printability, "、" is good. "○" is a potential thing. "-" Has shown that it is unsuitable.

When a screen of 100 to 150 mesh is used in silk screen printing, the opening is about 80 to 120 μm, and it can be used except G-300L160 judging from the particle size.

In general, "N luminous (Lumino)" does not contain harmful effects to humans because it does not contain radioactive substances or harmful substances, is a non-sulfide type phosphorescent pigment which does not contain sulfide, and is a conventional sulfide type. Compared to phosphorescent pigments, the afterglow time and brightness are 10 times higher, and the wavelength range for excitation is wide (200 to 450 μm). In addition, it has high chemical stability and excellent light resistance.

Example 1
The following rigid vinyl chloride sheet was used as a material of which the card base 10 was made.
A 0.30 mm thick sheet was used as the intermediate transparent core sheet 11, and a 0.15 mm thick sheet was used as the white core sheets 12 and 15. The transparent oversheets 13 and 16 each had a thickness of 0.10 mm.

On the front and back surfaces of the transparent core sheet 11, the phosphorescent pigment luminol “GLL-300M” (average particle size 25 μm) was converted into a silk screen ink and printed on the entire surface. The ink was blended in a silk screen medium ink made of a vinyl acetate resin so that the medium: phosphorescent pigment was 1: 1.

The transparent core sheet 11, the white core sheets 12 and 15, and the transparent oversheets 13 and 16 are stacked as shown in FIG. 1 and then hot-pressed to form an integrated card substrate 10.
When the completed card 1 was placed under a white fluorescent light for 30 minutes and then viewed in the dark, it could be confirmed that the four side surfaces of the card 1 appeared to glow at the periphery of the transparent core sheet 11.

(Example 2)
The following rigid vinyl chloride sheet was used as a material of which the card base 10 was made.
A 0.30 mm thick sheet was used as the intermediate transparent core sheet 11, and a 0.15 mm thick sheet was used as the white core sheets 12 and 15. The transparent oversheets 13 and 16 each had a thickness of 0.10 mm.

On the front and back surfaces of the transparent core sheet 11, the phosphorescent pigment luminol “GLL-300M” (average particle size 25 μm) was converted into a silk screen ink and printed on the entire surface. Similarly, the entire surface of the white core sheet 12 facing the transparent oversheet 13 was printed with the same ink.
The ink was blended in a silk screen medium ink made of a vinyl acetate resin so that the medium: phosphorescent pigment was 1: 1.

The transparent core sheet 11, the white core sheets 12 and 15, and the transparent oversheets 13 and 16 are stacked as shown in FIG. 3 and then hot-pressed to form an integrated card substrate 10.
A pattern transfer film 20 having the configuration shown in FIG. 5 was placed on the surface of the transparent oversheet 13 of the card substrate 10 and pressed to form a pattern layer 14. In addition, the pattern transfer film 20 used the thing which has the adhesive layer and silver concealment layer by the pattern and character by which the offset printing was carried out, and a silk screen. However, the symbol (.DELTA. Mark) 2s portion indicating the card insertion direction is a removed portion without ink.

The character portion 2m including personal information in the pattern layer 14 was engraved using a laser printing machine of a card issuing machine so that a light yellow-green phosphorescent print layer 121 could be seen through the transparent overcoat 13.

After placing the completed card 1 under a white fluorescent light for 30 minutes, when viewed in the dark, the character portion 2m including personal information and the symbol (Δ mark) 2s indicating the insertion direction of the card appear to glow green Was confirmed. In addition, it was also confirmed that the four side surfaces of the card 1 appeared to be similarly brightened at the peripheral edge of the transparent core sheet 11.

(Example 3)
The following resin sheet was used as a material constituting the card base 10.
The transparent core sheet 11 having a thickness of 0.30 mm made of PET-G was used, and the white core sheets 12 and 15 having a thickness of 0.15 mm made of PET-G were used. In addition, as the transparent oversheets 13 and 16, one having a thickness of 0.10 mm, which is an alloy sheet made of polycarbonate and copolyester, was used. The transparent oversheet 13 has a magnetic tape embedded on the side of the pattern layer 14.

On the front and back surfaces of the transparent core sheet 11, the phosphorescent pigment luminol “BGL-300M” (average particle size 25 μm) was converted into a silk screen ink and printed on the entire surface. Similarly, the same ink was printed on the entire side of the white core sheet 12 facing the transparent oversheet 13.
The ink was mixed with a silk screen medium ink made of a salt and vinegar-based resin so that the medium: phosphorescent pigment is 1: 1.

The transparent core sheet 11, the white core sheets 12 and 15, and the transparent oversheets 13 and 16 were stacked so as to have the configuration shown in FIG.
A pattern transfer film 20 having the configuration shown in FIG. 5 was placed on the surface of the transparent oversheet 13 of the card substrate 10 and pressed to form a pattern layer 14.
In addition, the pattern transfer film 20 used the thing which has the adhesive layer and silver concealment layer by the pattern and character by which the offset printing was carried out, and a silk screen.

The character portion 2m including personal information in the pattern layer 14 and the symbol (Δ mark) 2s portion indicating the insertion direction of the card are engraved using a laser printing machine of a card issuing machine, and a light yellow phosphorescent printing layer 121 was made visible through the transparent oversheet 13.

After placing the completed card 1 in sunlight for 15 minutes, when viewed in the dark, the character part 2m including personal information and the symbol (Δ mark) 2s indicating the insertion direction of the card appear to glow green Was confirmed. In addition, it was also confirmed that the four side surfaces of the card 1 appeared to be brightened at the peripheral edge of the transparent core sheet 11.

In the above description, the present invention has been described with reference to a practical example using a card. However, the present invention is not limited to a card, and can be applied to various display bodies using a laminated material.

1 Card 2d Design 2k Card Expiration Date 2m Character 2n including Personal Information Card Number 2s Symbol 10 Card Base 11 Transparent Sheet, Transparent Core Sheet 12 White Sheet, White Core Sheet 13 Transparent Oversheet 14 Pattern Layer 15 White Sheet 16 Transparent Over Sheet 20 Picture transfer film 111, 112, 121 Phosphorescent printing layer

Claims (11)

A transparent sheet is disposed as an intermediate layer of a card, a white sheet is laminated on both sides of the transparent sheet, and a transparent oversheet is laminated on the outer surfaces of both the white sheets, which is the intermediate layer A card characterized in that a phosphorescent printing layer is formed on the entire front or back of the transparent sheet or on at least the front and back along the periphery. A transparent sheet is disposed as an intermediate layer of the card, a white sheet having a luminous print layer formed on one side of the transparent sheet, a white sheet laminated on the other side, and an outer surface of the luminous print layer of the one side white sheet The card has a picture layer on it, and a transparent oversheet in which a part of characters and symbols in the picture layer is a blank letter and a symbol is laminated, and a transparent oversheet is laminated on the outer surface of the other side white sheet. The card is characterized in that a phosphorescent printing layer is formed on the entire front or back of the transparent sheet as the intermediate layer or on at least the front and back along the periphery. 3. The card according to claim 1, wherein the phosphorescent printing layer comprises a silkscreen ink printing layer containing a non-sulfide phosphorescent pigment. 3. The card according to claim 2, wherein the phosphorescent printing layer of the white sheet is formed at least in a portion that becomes a lower surface of the extracted character / symbol. The card according to claim 2 or 4, wherein the punctuation character relates to the personal information of the individual. (1) A step of forming a phosphorescent printing layer by silk screen printing on the entire front or back of the transparent sheet, which is an intermediate layer of the card, or at least on the front and back along the periphery,
(2) a step of temporarily stacking a white sheet on both sides of the luminous print layer of the transparent sheet,
(3) temporarily stacking a transparent oversheet on the outer surface of the white sheet on both the front and back sides,
(4) a step of hot pressing the temporary stack of the transparent sheet, the white sheet, and the transparent oversheet to form a card substrate that is integrally adhered and laminated;
A method of manufacturing a card, comprising: (1) A step of forming a phosphorescent printing layer by silk screen printing on the entire front or back of the transparent sheet, which is an intermediate layer of the card, or at least on the front and back along the periphery,
(2) A step of temporarily stacking the phosphorescent printing layer of the white sheet having the phosphorescent printing layer formed on one side surface on the one side of the transparent sheet of the transparent sheet,
(3) a step of temporarily stacking a white sheet on the other side surface of the luminous print layer of the transparent sheet,
(4) temporarily stacking a transparent oversheet on the outer surface of the white sheet on both the front and back sides,
(5) A step of forming a card base body in which the temporary stacked laminate of the transparent sheet, the white sheet, and the transparent oversheet is hot-pressed and integrally adhered and laminated,
(6) forming a pattern layer on the transparent over sheet on the display side of the card;
A method of manufacturing a card, comprising: 8. A method of manufacturing a card according to claim 7, wherein the pattern layer has a letter / symbol. 9. The method of manufacturing a card according to claim 8, further comprising a step of laser engraving characters to form extracted characters after the pattern layer is formed. 10. A method of manufacturing a card according to claim 8, wherein the punctuation characters relate to the personal information of the individual. 8. The card manufacturing method according to claim 6, wherein the phosphorescent printing layer comprises a silkscreen ink printing layer containing a non-sulfide phosphorescent pigment.

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