JP2796685B2 - passport - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a passport using a watermark face photograph display sheet which is suitable for preventing forgery which is difficult to be falsified by using a sheet on which a desired face photograph can be directly expressed by engraving means.

[0002]

2. Description of the Related Art Conventionally, a passport is attached with a photograph of a person's own face to prove his / her own identity.
In most cases, this face photograph is used by pasting it to a predetermined part of the passport with glue, stamping it to prevent forgery, and pasting a transparent seal on it.Recently, photo transfer method is also used I have. However, since the photo sticking method as described above easily peels off, it may be forged or forged by replacing it with another photo, and if the passport is stolen or lost, it can be misused to cause unexpected damage. I was suffering. Also, in the photo transfer method, accidental damage may be caused by easily exchanging a face photo using a close-up lens.

[0003]

The inventor of the present invention has conducted various studies to solve the above-mentioned problems in the conventional passport, and as a result, a face photograph was printed on a specific watermark engraving sheet from a face photograph at the time of application for issuance. Studying openwork sculpture. SUMMARY OF THE INVENTION It is an object of the present invention to provide a passport that uses openwork paper that has the suitability of expressing a desired face photograph with an engraving means, is easy to detect tampering, and is not easily tampered with.

[0004]

According to the present invention, a passport is provided.
A passport at least partially composed of openwork paper comprising a support layer and an engraved layer, wherein the opacity of the support layer is 70% or less, the opacity of the engraved layer is 40% or more, and the support is The opacity of the layer is always lower than the opacity of the engraved layer, the difference in opacity between the support layer and the engraved layer is 30% or more, and the openwork paper is engraved from the engraved layer to the support layer. Thus, the watermark face image corresponding to the face photograph is engraved and created. That is, according to the present invention, as a result of research, when forming an engraving layer on a support layer to form an openwork paper, the opacity of the support layer is 70% or less, and The opacity of the support layer is always lower than the opacity of the engraved layer, and the difference in opacity between the support layer and the engraved layer is 30% or more. It has been found that a sharp engraved image can be obtained by transmitted light if the engraving is performed up to, and the present invention has been completed. Or providing a plurality of colored layers,
A back layer or a back layer and a tint block layer may be provided on the back surface of the support layer, or a tint block layer may be provided between the front surface of the support layer and the engraving layer or the coloring layer.

[0005]

According to the passport of the present invention, a face photograph is engraved from the engraved layer to the support layer on a paper comprising a support layer having a certain opacity and an engraved layer, so that a clear face image can be visually recognized. You will get a passport that cannot be forged or altered.

[0006]

Embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view showing a state where the passport 10 is opened. FIG. 2 is an enlarged cross-sectional view showing an example of the openwork engraving paper 9 in which the back surface layer 2 is provided on the back surface of the support layer 1 and the engraving layer 4 is also provided on the front surface with the undercoat layer 3 interposed therebetween. As shown in FIG. 3, the openwork engraving paper 9 engraves the image portion 5, engraves the back shadow portions 6, 6 on both sides up to the support layer 1, and irradiates transmitted light from the back surface. The original image is clearly visible. FIG. 4 is an enlarged cross-sectional view of an openwork engraving paper 9 in which three colored undercoat layers 3 are formed on the surface of the support layer 1 and an engraving layer 4 is provided thereon, and FIG. Is provided with a backside layer 2, a tint block printing 7 is also provided on the front side, and an engraving layer 4 is provided thereon via a colored undercoat layer 3. FIG. 4 is an enlarged cross-sectional view of an openwork engraving paper 9 on which a background pattern printing 7 is applied to the back surface, a back surface layer 2 is further provided thereon, and an engraving layer 4 is provided on the surface of the support layer 1 via an undercoat layer 3; By performing engraving as shown in FIG. 3 on these openwork papers 9, clear images can be visually recognized by transmitted light.

The passport 10 of the present invention is a passport formed at least in part by an openwork sheet 9 comprising a support layer 1 and an engraving layer 4. Is 70% or less, the opacity of the engraving layer 4 is 40% or more, and the opacity of the support layer 1 is always lower than the opacity of the engraving layer 4. The difference is 30% or more, and the watermark face image 13 corresponding to the face photograph 12 is engraved and created by engraving from the engraving layer 4 to the support layer 1. Then, one or a plurality of colored layers having different colors from each other are provided between the support layer 1 and the engraving layer 4, or the back layer 2 or the back layer 2 and the tint block layer 7 are provided on the back surface of the support layer 1. Alternatively, a tint block layer 7 may be provided between the surface of the support layer 1 and the engraving layer 4 or the coloring layer. From a face photograph 12 conventionally attached to an appropriate portion of the face photograph display sheet 8, a watermark face image 13, which is a black-and-white shaded image having a density gradation, is sculpted by a conventionally known sculpture device to form a face photograph. You can produce a passport with openwork paper.

As the support layer 1 of the present invention, generally used polypropylene, polyethylene terephthalate,
An appropriate plastic sheet such as vinyl chloride is used. However, white polyester films and polypropylene films are not preferred because of their high opacity. Further, since the engraving is performed up to the support layer 1, a material having good engraving property, such as a polyester film, is preferable. If the material is too soft, cutting powder during engraving will adhere and remain on the image and cannot be removed. On the other hand, in the case of a brittle material, the image after engraving may be lost, and the preservability may be deteriorated. The thickness is variously selected depending on the application. In the case of a passport, the thickness is 50 to 200 μm, preferably 75 to 1 μm.
50 μm is good.

The engraving layer 4 of the present invention is provided by applying and drying a coating solution comprising a binder and a filler by a commonly used means. Further, a wetting agent, a viscosity adjusting agent, and the like for facilitating coating may be mixed in the coating liquid, and an antistatic agent and the like may be mixed. The thickness of the engraving layer 4 is 3
２５25 μm, preferably 7-12 μm.

The binder used for the engraving layer 4 is not particularly limited as long as it has good adhesion to the support layer 1 and to the undercoat layer 3 when the undercoat layer 3 is used. . When the support layer 1 is a polyester film, polyester or the like is preferable.
However, for storage after engraving, resins having good scratch resistance, such as polyester and polyurethane, are preferred.

On the other hand, the filler used in the engraving layer 4 may be any filler that imparts opacity, and includes titanium oxide, calcium carbonate, silica and the like. Those which give opacity when added in a small amount are preferable, and titanium oxide is particularly preferable. In addition, titanium oxide that is previously dispersed in water can also be used.

For image preservation, after engraving, the image 13
A transparent resin may be laminated or a cover may be applied from above.

The undercoat layer 3 may or may not be provided, but if it is provided, it is selected from a binder having good adhesion to both the support layer 1 and the engraving layer 4. Also,
The undercoat layer 3 may be transparent or opaque, but in some cases, opaque is better in order to give the statue 13 a fine gradation. This helps increase the opacity. The purpose of the undercoat layer 3 is to improve the adhesion of the engraving layer 4, and in order to prevent counterfeiting, the undercoat layer 3 may be a colored layer or a plurality of layers. . In this case, if the colored layer is made different from the respective colors of the support layer 1 and the engraved layer 4, it is possible to make it difficult to falsify. Furthermore, it is also possible to insert a tint block printing 7 as the undercoat layer 3 to prevent forgery. The thickness of the undercoat layer 3 depends on the thickness of the entire engraving layer 4, but is about 1 to 10 μm.
As a method for forming the same, there are a commonly used coating method and a method using gravure printing.

A backside layer 2 may be provided on the backside of the support layer 1. The purpose of providing the back surface layer 2 is to improve printing and printability, and it is not necessary to provide the back surface layer 2 when unnecessary. It is desirable to use a binder having good adhesion to the support layer 1 for the back layer 2. Polyester is used when the support layer 1 is polyethylene terephthalate, and chlorinated polypropylene is used when the support layer 1 is polypropylene. Are respectively preferred. The thickness of the back surface layer 2 is 1 to
Fine powder silica having a particle size of 15 μm and having low opacity and good printability is preferable as the filler.

In the present invention, the opacity of the support layer 1 refers to the opacity combined with the back layer 2 when the back layer 2 is provided, and the opacity of the engraving layer 4 refers to the opacity when the back layer 2 is provided. Refers to the opacity combined with the back surface layer 2, and the opacity of the engraving layer 4 refers to the opacity combined with the undercoat layer 3 when the undercoat layer 3 is provided.

As described above, the watermark engraving paper 9 of the present invention is provided with the engraving layer 3 provided directly on the surface of the support layer 1 or with one or more undercoat layers 3 interposed therebetween. However, in order to impart printing and printability, a back layer 2 is provided on the back surface of the support layer 1 or a tint block print 7 is provided on the back or front surface of the support layer 1 in order to prevent tampering. By applying, the watermark engraving paper 9 according to the purpose
It can be. In the drawings, reference numeral 11 indicates each sheet of the passport.

EXPERIMENTAL EXAMPLE 1 A coating solution having the following composition was applied to the back surface of a support layer made of a polyester film having a thickness of 75 μm and subjected to an easy adhesion treatment on both sides, and dried to obtain a sheet. The coating thickness of this sheet after drying was 10 μm, and the opacity was 43% (measurement was in accordance with JIS-P-8138). Composition of coating liquid Water-based polyester resin (Vylon MD1200 manufactured by Toyobo Co., Ltd.) 50 parts by weight Polyvinyl acetal resin (KX-1 manufactured by Sekisui Chemical Co., Ltd.) 10 Associative thickener (10% EXP manufactured by Rohm and Haas Co.) 5 Fine silica powder 10 Light calcium carbonate 6 Sizing agent 0.16 Antistatic agent (Chemistat 6120 manufactured by Sanyo Chemical Co., Ltd.) 4 Aqueous polyolefin dispersion 6 Water 120

Next, a white gravure ink (PXAO-White 665, manufactured by Osaka Printing Ink Co., Ltd.) was applied on the surface of the sheet so that the thickness after drying was 2 μm, and dried to form an undercoat layer. Further, a coating liquid having the following composition was applied on the undercoat layer so as to have a thickness after drying of 10 μm, and dried to form an engraved layer. The opacity of the engraved layer of this sheet was 85%. Composition of coating liquid for engraving layer Aqueous polyester resin (GXW-27, manufactured by Toyobo Co., Ltd.) 50 parts by weight Aqueous polyurethane resin (AP-40, manufactured by Dainippon Ink Co., Ltd.) 38.5 Fluorinated surfactant 0.08 Titanium oxide 13 Light calcium carbonate 5.8 Water dispersion Titanium oxide 75 Antistatic agent (Chemistat 6120 manufactured by Sanyo Chemicals) 3 Water 15

The configuration of the watermark engraving sheet constituted as described above is as shown in FIG. From the surface of the engraving layer of this paper, the substrate layer was engraved with a card engraving machine, and observed from the back with illumination. As a result, a clear image could be visually recognized. The sculptured image was robust without any surface falling off even when rubbed with nails. The image was extremely difficult to see with reflected light, and was clearly recognized only by the above-mentioned transmitted light.

The opacity of the support layer and the opacity of the engraved layer of the above-mentioned openwork paper were variously changed, and an image was obtained by engraving with a card engraving machine. As a result of observing the opacity and the sharpness of the image, the results are as shown in Table 1.

[0021]

[Table 1]

[0022]

[Table 2]

Experimental Example 2 A 75 μm-thick polyester film was used as a support layer, and a back surface layer was provided on the back surface in the same manner as in Experimental Example 1. next,
A blue gravure ink was applied on the surface of the support layer so as to have a thickness after drying of 2 μm, and dried to form an undercoat layer. Further, an engraving layer similar to that of Experimental Example 1 was provided on the undercoat layer to obtain an openwork paper. When engraving was performed from the surface of the engraving layer of the openwork engraving layer to the support layer by a card engraving machine and transmitted light was applied, a clear image could be visually recognized.

Hereinafter, similarly, as shown in Table 2, the colors of the undercoat layer and the engraving layer were changed, and the reflected light and the transmitted light were observed in various combinations. In the transmitted light, the undercoat layer and the engraving layer have a mixed hue, but the color is close to the color of the engraving layer.

Experimental Example 3 Three undercoat layers were formed on a support layer made of a 75 μm-thick polyethylene terephthalate film in the same manner as in Experimental Example 1, and an engraving layer was provided thereon to obtain openwork paper. . The structure of the openwork paper was as shown in FIG. 4. From the surface of the engraving layer to the support layer, engraving was performed, and when a transmitted light was applied, a clear image could be visually recognized.

The colors of the undercoat layer and the color of the engraving layer were changed, and the reflected light and transmitted light were observed in the same manner as described above.

[0027]

[Table 3]

EXPERIMENTAL EXAMPLE 4 A backside layer was provided on the backside of a support layer made of a 75 μm-thick polyethylene terephthalate film in the same manner as in Experimental Example 1, and the surface of the support layer was subjected to tint block printing using white gravure ink. An undercoat layer was provided with the same ink as above, and an engraving layer was further provided thereon to obtain an openwork paper. The configuration of this openwork paper is as shown in FIG. 5, and the tint block printing was not observed with the reflected light.
In transmitted light, it was clearly observed. When engraving was performed on this openwork paper, a clear image was obtained.

EXPERIMENTAL EXAMPLE 5 A background pattern was printed with a white gravure ink on the back surface of a support layer made of a polyethylene terephthalate film having a thickness of 75 μm, and a back layer was provided thereon in the same manner as described above. An undercoat layer was provided with gravure ink, and an engraving layer was further provided thereon to obtain an openwork paper. The structure of this openwork paper was as shown in FIG. 6, and the copy-forgery-inhibited pattern printing was not observed with reflected light, but was clearly observed with transmitted light. When the paper was engraved, a clear image was obtained.

[0030]

The openwork paper of the present invention is as described above. In the openwork paper comprising a support layer and an engraved layer, the opacity of the support layer is 70% or less and the opacity of the engraved layer is not more than 70%. When the opacity of the support layer is always lower than the opacity of the engraved layer when the opacity of the support layer is 40% or more, and the opacity difference between the support layer and the engraved layer is 30% or more, the engraving from the engraved layer to the support layer is performed. So, when the above sculpture is applied,
Since the engraved image is difficult to see in reflected light and clear in transmitted light, it is extremely difficult to forge, and after engraving the image, the image does not peel off even if it is rubbed with a nail or the like.
A passport suitable for preventing forgery is obtained.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a state in which a passport is opened.

FIG. 2 is an enlarged sectional view showing an example of the openwork paper of the present invention.

FIG. 3 is an enlarged cross-sectional view showing a state where the sheet of FIG. 1 is engraved.

FIG. 4 is an enlarged cross-sectional view of another example of the sheet of the present invention.

FIG. 5 is an enlarged sectional view of another example of the present invention.

FIG. 6 is an enlarged cross-sectional view of still another example of the present invention.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 support layer (synthetic resin sheet) 2 back layer of support layer 3 undercoat layer 4 engraving layer 5 image section 6 back shadow section 7 background pattern printing (layer) 8 face photo display paper 9 watermark engraving paper 10 passport 11 passport Each paper 12 Face photo 13 Watermark face image (statue)

Claims (1)

(57) [Claims] 1. A passport comprising, at least in part, an openwork paper comprising a support layer and an engraved layer, said openwork paper having a support layer with an opacity of 70%.
Hereinafter, the opacity of the engraved layer is 40% or more, the opacity of the support layer is always lower than the opacity of the engraved layer, and the difference in opacity between the support layer and the engraved layer is 30% or more. A passport characterized by engraving a watermark face image corresponding to a face photograph by engraving the support layer.