JPH05329415A - Protective layer forming device for id card - Google Patents

Abstract

PURPOSE:To prevent the generation of the collapse, distortion, etc., of image intermediate protective layer of the generation of the distortion of a card base material by providing a temp. control means for lowering the temp. of the image intermediate protective layer and/or the card base material on a transportation route from an image intermediate protective layer forming section to a surface protective layer coating section. CONSTITUTION:This surface protective layer forming device for ID cards, etc., is constituted to form the surface protective layer by applying a synthetic resin liquid on the image intermediate protective layer of the card base material recorded with an image and curing the coating. The image intermediate protective layer forming section C is constituted to have a gravure roll 22 and a back roll 23. The temp. control means 20 for lowering the temp. of the image intermediate protective layer and/or the card base material is provided on the transportation route from the image intermediate protective layer forming section B to the surface protective layer forming section C. As a result, the image intermediate protective layer and/or the card base material is subjected to the formation of the surface protective layer, i.e., the applying and curing of the synthetic resin after cooling.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention applies a synthetic resin solution to the surface of ID cards, credit cards, student ID cards, and various licenses (hereinafter abbreviated as ID cards) to form a surface protective layer. The present invention relates to an ID card creation device.

[0002]

BACKGROUND OF THE INVENTION It has long been practiced to attach a transparent laminate film to protect the surface of a card, but as an alternative to this, a synthetic resin liquid that is cured by irradiation with ultraviolet rays or electron beams is applied. -A method of curing is used. Specific examples of the protective layer forming apparatus using this method include Japanese Patent Laid-Open No. 64-90262 and Japanese Utility Model Publication No.
The one described in Japanese Patent Publication No. 9025 is cited.

By the way, an ID card has information such as images such as photographs and characters transferred on its surface, but these images and characters have a problem of fading over time or other factors. The discoloration occurs, for example, when a curable UV monomer or oligomer and a functional group of the dye interact with each other when an ultraviolet curable resin is used as the surface protective layer, or by irradiation with ultraviolet rays, Furthermore, it has been found that it basically occurs with the passage of time. In order to solve the problem of fading, it is preferable to form an image intermediate protective layer such as a hot stamp transfer foil on the transferred image or transferred characters. Further, it is more preferable to incorporate an ultraviolet absorber in the image intermediate protective layer.

However, if the surface protective layer is continuously formed after the image intermediate protective layer is formed on the surface of the ID card on which the image intermediate protective layer is formed by using the conventional protective layer forming apparatus, the ID card is When passing through the coating portion nip roll of the surface protective layer forming portion, the pressure of the nip roll causes blurring or distortion of the image intermediate protective layer in a high temperature state, so that the surface protective layer cannot be coated uniformly and the surface of the ID card is matted. It has been found that there is a case where the image is turned into a bad image or, in some cases, the transferred image or the transferred character, which is the lower layer of the image intermediate protective layer, is adversely affected.

Further, an ID having no image intermediate protective layer
It has been found that even in the case of a card, the card base material itself may be distorted.

[0006]

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide an ID capable of forming a surface protective layer without causing blurring or distortion of the image intermediate protective layer or without causing distortion of the card substrate.
It is to provide a card making device.

[0007]

The present inventor has achieved the present invention as a result of extensive studies to achieve the above object.

That is, the protective layer forming apparatus for an ID card or the like according to the present invention is an ID card for forming a surface protective layer by applying and curing a synthetic resin liquid on an image intermediate protective layer of a card base material on which an image is recorded. In the surface protective layer forming apparatus such as the above, the surface protective layer coating section is provided with a gravure roll and a back roll, and the image intermediate is provided on the conveying path from the image intermediate protective layer forming section to the surface protective layer coating section. Protective layer and /
Or, it has a temperature control means for cooling the temperature of the card base material, or forms a surface protective layer such as an ID card which forms a surface protective layer by applying and curing a synthetic resin liquid on the surface of a card base material on which an image has been recorded. In the apparatus, the surface protective layer coating section has a gravure roll and a back roll,
The temperature control means for cooling the temperature of the card base material is provided on the conveying path to the surface protective layer coating section, respectively.

Also, in a preferred embodiment of the protective layer forming apparatus for an ID card or the like according to the present invention, the temperature control means is natural cooling, and the temperature control means is
The air is blown to the card, the temperature control means by the air blow is blowing from different side directions to the respective surfaces of the ID card, the temperature control means is in contact with the cooling object, The control temperature of the temperature control means is equal to or lower than the lowest glass transition point among the materials used for the card substrate.

[0010]

According to the present invention, the surface protection layer is provided after the image intermediate protection layer and / or the card substrate is cooled by providing the temperature control means on the conveying path to the surface protection layer coating section. In other words, since the synthetic resin liquid is applied and cured, the surface protective layer is formed without causing the image intermediate protective layer to be distorted or distorted, or to distort the card substrate. ..

[0011]

Embodiments of the present invention will be described below with reference to the accompanying drawings. FIG. 1 shows an example of an ID card protective layer forming apparatus to which the present invention is applied. In addition, in FIG.
The image and characters are exposed on the recording layer of the ID card, developed,
Image recording unit A which is composed of an exposure / development / drying unit for further drying, or a transfer unit for transferring images, characters, etc. onto the surface of the ID card.
A block diagram of the formation portion B of the image intermediate protective layer for preventing the fading of recorded images and characters is shown.

First of all, the formation of the surface protective layer will be described. By the card conveying mechanism, the ID card 10 is transferred from the image recording section A or the image intermediate protective layer forming section B to the surface protective layer which is a post-process in the apparatus. It is conveyed to the forming unit C.

On the conveying path to the surface protective layer forming section C,
The image intermediate protective layer which is still in a high temperature state after the formation and / or the ID which is in a high temperature state due to the formation of the image intermediate protective layer
Temperature control means 20 for cooling the card is provided.

The temperature control means 20 controls the temperature of the image intermediate protective layer and / or the card base material to a temperature at which there is no deviation or distortion, preferably the material used for the ID card (card base material, recorded image and recorded characters). , The image intermediate protective layer, etc.), it is cooled below the lowest glass transition point, and the specific configuration is natural air or cold air (compressed air such as liquid nitrogen vapor or cooler) by a fan or blower. Air) or blow it into contact with a cooling object such as a roll made of a material with high thermal conductivity (eg, aluminum, iron, etc.), a semiconductor cooling element, or a cooler having a water cooling mechanism. There are things to do. Further, as a simpler configuration, the transport time to the surface protective layer forming portion C can be increased by lengthening the transport path to the surface protective layer forming portion C, slowing the transport speed, or stopping the transport midway. It can be cited that the product is naturally cooled by heating for a certain time or longer.
Of course, a plurality of the above modes may be combined.

Among the modes of the temperature control means 20, a preferred example of cooling the ID card 10 by blowing air will be described with reference to FIG. 2. In FIG. 2, the temperature control means 20 has the ID card 10 to be cooled. Blower guide members 20A and 20B that act as nozzles for blowing cooling air are arranged on both sides of the bases 20a and 20b of the respective blower guide members 20A and 20B.
A blower fan (not shown) supplies air to the blower. The supplied blast is the blast guide members 20A and 20B.
It is blown out in the direction of the arrow X according to the openings prepared in the guide plates 20C and 20D arranged inside the. Then, the air blows in the vicinity of the respective base portions 20a, 20b of the air blow guide members 20A, 20B wrap around to the opposite side, as indicated by the arrow Y. Therefore, the air can be blown evenly over the entire surface of the ID card 10, so that the cooling efficiency is high.

The ID card 10 conveyed to the surface protective layer forming portion C in the cooled state by the temperature control means 20 is rotated by the pushing roll 21 and the inside of the surface protective layer forming portion C is
Gravure roll 22 which is a coating section for coating the synthetic resin liquid
And the back roll 23. At this time,
The coating liquid pumped up from the bat 25 by the pickup roll 24 and transferred to the gravure roll 22 is I
It is applied to the surface of the D card 10. The ID card 10 on which the coating liquid has been applied is dropped onto a transfer conveyor 26 prepared below, and while being transferred as shown in the figure, ultraviolet rays are emitted by an ultraviolet irradiation means 27 which is a surface protection layer curing section. The coating liquid is irradiated and cured. After curing, I
The D card 10 is further conveyed and discharged to the outside of the apparatus to complete the ID card. In addition, the coating liquid is the coating liquid tank 2
8 is prepared, and a bat 25 is appropriately provided by a pump 29.
The coating liquid supplied to the tank and overflowed from the vat 25 is collected in the tank 30.

In the ID card completed with the surface protective layer formed thereon, as described above, the image intermediate protective layer and / or the card base material is cooled by the temperature control means 20 so as not to cause blurring or distortion, and then the surface thereof. Since the surface protective layer is conveyed to the protective layer forming portion C, that is, the synthetic resin liquid is applied and cured, the pressure of the nip roll during the application of the synthetic resin liquid is not affected. Therefore, the recorded image and the recorded characters are not adversely affected, and the surface protective layer can be uniformly applied. Further, even in the case of an ID card having no image intermediate protective layer, distortion of the card base material does not occur.

[0018]

Experimental Example An experimental example of the present invention will be described below. Experimental Example 1 A card base material (having a recorded image) having a polyvinyl acetal layer formed by hot stamping as an image intermediate protective layer was conveyed in the atmosphere for 20 seconds on a conveyance path composed of a conveyor having a length of 500 mm, It was sent to the surface protective layer forming portion C. When passing through the image intermediate protective layer forming section B,
The surface temperature of the card base material, which was 200 ° C., dropped to 60 ° C. at the time of being sent to the surface protective layer forming part C. An ID card whose surface temperature has dropped to 60 ° C was formed by applying and curing an epoxy-based UV-curing resin as a surface protection layer. As a result, there was no scratching or distortion of the polyvinyl acetal layer, and no distortion of the card substrate, and a uniform surface protection layer. An ID card with was obtained.

Comparative Example 1 After removing the conveyor of Experimental Example 1 and immediately after forming the image intermediate protective layer, the card substrate was sent to the surface protective layer forming section C to apply and cure the surface protective layer. The layer was not applied uniformly and the ID card surface became matte. This is probably due to the deviation of the image intermediate protective layer.

Experimental Example 2 In Example 1, the conveyor distance was halved to 250 mm, the transportation time was set to 10 seconds, and a fan was added in the middle of the transportation path to blow air while the card base coated with the image intermediate protective layer was formed. When the material was conveyed to the surface protective layer forming portion C, the surface temperature of the card base material was 200 ° C., which was 60 ° C. at the time of being sent to the surface protective layer forming portion C, as in Experimental Example 1.
Fell to. In addition, an ID card having a uniform surface protective layer was obtained without any distortion or distortion of the polyvinyl acetal layer or distortion of the card substrate.

Experimental Example 3 In the image recording section A, an image is exposed and developed on the recording layer, and a dried card substrate is formed on a surface thereof without forming an image intermediate protective layer, and a conveyance path consisting of a conveyor having a length of 500 mm. The air was conveyed over the top for 20 seconds and sent to the surface protective layer forming portion C. 18 when passing through the image recording unit A
The surface temperature of the card base material, which was 0 ° C., dropped to 50 ° C. at the time of being sent to the surface protective layer forming part C. An ID card having a surface temperature lowered to 50 ° C. was formed by applying and curing an epoxy-based ultraviolet curing resin as a surface protection layer, and an ID card having a uniform surface protection layer was obtained without distortion of the card base material. ..

[0022]

According to the present invention, the temperature control means for cooling the image intermediate protective layer and / or the card substrate is provided on the conveying path to the surface protective layer coating section, whereby the image intermediate protective layer and / or the card intermediate substrate are cooled. Alternatively, since the surface protection layer is formed, that is, the synthetic resin liquid is applied and cured after the card base material is cooled, the image base protection layer does not suffer from slippage or distortion, or the card base material. It is possible to obtain an ID card having a uniformly applied surface protective layer without causing distortion.

[Brief description of drawings]

FIG. 1 is a schematic view of an apparatus to which the present invention is applied.

FIG. 2 is a schematic cross-sectional view showing an example of temperature control means.

[Explanation of symbols]

 A image recording part B image intermediate protective layer forming part C surface protective layer forming part 10 ID card 20 temperature control means 21 indenting roll 22 gravure roll 23 back roll 24 pickup roll 25 bat 26 transport conveyor 27 ultraviolet irradiation means 28 coating liquid tank 29 Pump 30 tank

Claims (7)

[Claims] 1. A surface protective layer forming apparatus such as an ID card in which a synthetic resin liquid is applied and cured on an image intermediate protective layer of a card substrate on which an image has been recorded to form a surface protective layer. Temperature of the image intermediate protective layer and / or the card base material on the transport path from the image intermediate protective layer forming section to the surface protective layer coating section. An apparatus for forming a protective layer such as an ID card, which is provided with a control means. 2. A surface protective layer forming apparatus such as an ID card in which a synthetic resin liquid is applied and cured on the surface of a card substrate on which an image has been recorded to form a surface protective layer. And having a back roll,
An ID characterized in that temperature control means for cooling the temperature of the card base material is provided on the conveying path to the surface protective layer coating section.
A protective layer forming device for cards, etc. 3. The protective layer forming apparatus for an ID card or the like according to claim 1, wherein the temperature control means is a natural cooling. 4. The protective layer forming apparatus for an ID card or the like according to claim 1 or 2, wherein the temperature control means is a blown air to the ID card. 5. A protective layer forming apparatus for an ID card or the like according to claim 4, wherein the temperature control means by the air blow is spraying from different side directions to each surface of the ID card. 6. The protective layer forming apparatus for an ID card or the like according to claim 1, wherein the temperature control means is in contact with a cooling object. 7. The I according to claim 1, wherein the temperature controlled by the temperature control means is not higher than the lowest glass transition point among the materials used for the card substrate.
A protective layer forming device for a D card or the like.