JP2018187839A - Plastic sheet having booklet binding part and data page - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a plastic sheet capable of preventing warpage during thermal processing by arranging a hinge and an IC sheet in a center of a layer, while preventing removal of a data page from a binding part of the hinge.SOLUTION: A plastic sheet comprises a booklet binding part in which both faces of a natural fiber such as cotton are laminated by an acrylic resin, and a booklet binding part having a connection part in which a polycarbonate (PC) is laminated on a part of both faces of the booklet binding part. This technology can be used for a hinge of a passport.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a hinge sheet used when binding a data page into a passport.

  In recent years, passports have started to introduce electronic passports, as ICAO (International Civic Aviation Organization) tightens entry / exit management in each country due to the global terrorist attacks in September 2001. The importance of is increasing further.

  A passport attaches a data page containing personal information via a hinge sheet, so that a malicious third party can detach the hinge sheet from the passport body and intentionally replace the data page with another one. Or it is necessary to prevent forgery.

  In general, the hinge sheet used for the passport has important properties such as tear strength and tensile strength at the binding portion, but it is necessary to have sufficient strength against repeated bending, so it has flexibility. It is made of a material such as resin.

  As an example thereof, a composite hinge sheet formed from a woven sheet and a thermoplastic resin, the woven sheet is made of mesh cloth or non-woven fabric, and the thermoplastic resin is a thermoplastic resin including a thermoplastic elastomer. There is disclosed a composite hinge sheet characterized in that an opening of a woven sheet is closed with a thermoplastic resin (see, for example, Patent Document 1).

  Also, a composite hinge sheet formed from a sheet made of thermoplastic resin (X) and a fabric made of thermoplastic resin (Y), wherein thermoplastic resin (Y) is selected from a mixture containing a thermoplastic elastomer An electronic passport combination sheet is disclosed in which a composite hinge sheet and a sheet made of thermoplastic resin (X) are connected to each other (for example, Patent Document 2). reference).

Japanese Patent No. 5173805 Japanese Patent No. 5981935

  However, since the technique of Patent Document 1 is a composite hinge sheet formed from a woven sheet and a thermoplastic resin containing a thermoplastic elastomer, it has sufficient strength against repeated bending and is good. Although excellent in terms of flexibility, when an IC sheet is laminated on the adjacent layer of the composite hinge sheet, it is not a symmetrical layer structure, so warpage occurs during thermal processing, which is a subsequent process, and is stable. There is a risk that the read IC cannot be read. Moreover, since the hinge sheet plastic card becomes thick, it hinders handling when used as a passport in the form of a booklet.

  Moreover, since the technique of patent document 2 is the structure which connected the thermoplastic resin containing a textile-like sheet | seat and a thermoplastic elastomer, it has sufficient intensity | strength and favorable softness | flexibility, and the part of a textile-like sheet | seat is attached to a passport. Since it can be bound, productivity is also good, but there is a possibility that a malicious third party may tamper with the data page by removing the connection part. In addition, when the composite hinge sheet and the combination sheet are different in thickness, there will be a step and a molding failure will occur. Therefore, it is essential that the hinge sheet and the combination sheet have the same thickness, and there are design restrictions. is there.

  The present invention has been made to solve the above-mentioned problems, and by arranging the hinge and the IC sheet in the center of the layer, it is possible to prevent warpage during thermal processing, and from the binding portion of the hinge to the data page. To provide a plastic sheet that can be prevented from being removed.

  The present invention is adjacent to the booklet binding portion, the booklet binding portion comprising a booklet binding layer (A) in which a thermoplastic resin layer made of a thermoplastic resin (excluding the thermoplastic elastomer) is laminated on both surfaces of the natural fiber layer, The booklet binding portion has a connecting portion in which a thermoplastic resin layer is laminated on both surfaces of the booklet binding layer (B) having the same laminated structure as the booklet binding portion, and the booklet binding portion and the connecting portion are integrated via the booklet binding layers (A, B). It is the plastic sheet for data pages characterized by being made.

  The present invention relates to a plastic for data pages having a booklet binding portion, wherein the natural fiber layer is a cloth foil, a woven fabric, a nonwoven fabric, a knitted fabric, or a sheet made of at least one of cotton, silk, hemp, and cellulose fibers. It is a sheet.

  The present invention comprises a connecting portion and an intermediate sheet layer made of a thermoplastic resin connected to the connecting portion, and an oversheet layer made of a thermoplastic resin is laminated on both surfaces of the connecting portion and the intermediate sheet layer. This is a data page for a passport that is characteristic.

  Since the plastic sheet of the present invention has a three-layer structure in which a natural fiber layer such as cotton is used as an intermediate layer of a booklet binding layer and an acrylic resin layer is laminated on both sides of the natural fiber layer, it is a symmetrical layer structure. Further, it is possible to prevent warpage that occurs during the thermal processing that is a subsequent process.

  Moreover, since the connection layer is laminated on the booklet binding layer, the thickness of the connection layer and the intermediate sheet layer after heat welding can be adjusted so that the thickness of the connection layer is the same. Layers and intermediate sheet layers can be selected without being restricted by thickness.

  Furthermore, since the intermediate sheet layer and the connecting portion are thermally welded and the oversheet layers are laminated and thermally welded from the front and back, the data page can be prevented from being tampered with by removing the connecting portion.

An example figure of a plastic sheet (A1) which has a booklet binding part in an embodiment is shown. An example figure of a data page (A2) in an embodiment is shown.

  DESCRIPTION OF EMBODIMENTS Embodiments for carrying out the present invention will be described with reference to the drawings. However, the present invention is not limited to the embodiments described below, and includes various other embodiments within the scope of the technical idea described in the scope of claims.

(Plastic sheet with booklet binding)
FIG. 1 shows a plastic sheet (A1) having a booklet binding portion in the embodiment. FIG. 1A is a plan view of a plastic sheet (A1) having a booklet binding portion, and the booklet binding portion (3a) includes a booklet binding layer (3) adjacent to the connecting portion (5). Specifically, the plastic sheet (A1) having the booklet binding portion is thermoplastic on both surfaces of the natural fiber layer (1) as shown in FIG. 1 (b), which is a cross-sectional view taken along the line XX ′ of FIG. 1 (a). A booklet binding layer (3) in which an acrylic resin layer (2) made of an acrylic resin is laminated as a resin (excluding a thermoplastic elastomer), and a thermoplastic resin layer (4) on a part of both surfaces of the booklet binding layer (3) The connection part (5) formed by laminating the connection part (5) and the booklet binding part (3a) are integrated via the booklet binding layer (3).

(Booklet binding layer)
The booklet binding layer (3) is formed by applying a natural fiber layer (1) and an acrylic resin layer (2) on both surfaces of the natural fiber layer (1). By applying the acrylic resin layer (2) to both sides of the natural fiber layer (1), the thickness is made uniform and warpage in thermal welding with polyethylene terephthalate (PET) or polyethylene terephthalate glycol (PETG) described later is prevented. It is easy to weld with the connecting layer. In addition, natural fibers, unlike thermoplastic elastomers, have no thermoplasticity and therefore do not deform when hot pressed. Furthermore, natural fibers have a lower chargeability than thermoplastic elastomers, and therefore have less effect on IC chips.

  The natural fiber layer (1) is made of cloth, such as cotton, silk, hemp, cellulose fiber, woven fabric, non-woven fabric, knitted fabric, or sheet. Since the natural fibers described above have elasticity and flexibility because they are natural, they can be easily bound by a sewing machine as a binding margin. The natural fiber layer (1) has a thickness of 0.02 mm to 0.7 mm. If it is less than 0.02 mm, the tensile strength is weak and sufficient strength cannot be obtained as the booklet binding portion (3a). On the other hand, when it exceeds 0.7 mm, it becomes difficult to fold the booklet when the booklet structure described later is used.

  In this embodiment, the acrylic resin layer (2) using an acrylic resin which is a thermoplastic resin (excluding the thermoplastic elastomer) is used. However, it does not need to contain a thermoplastic elastomer, and a known thermoplastic resin is used. A resin such as polycarbonate (PC), polyethylene terephthalate glycol (PETG), polyvinyl chloride (PVC), or the like can be used. The reason why the thermoplastic elastomer is excluded is that it is difficult to be thermally deformed in heat welding with the connecting portion (5) described later, and does not deform when hot-pressed. In addition, since an acrylic resin has favorable adhesiveness with a natural fiber and is inexpensive, in this specification, it demonstrates by the example formed with the acrylic resin layer (2).

  The acrylic resin layer (2) is made of ethyl acrylate, isopropyl acrylate, acrylic acid n-, whose main component is a polymer or copolymer having a C1-C4 alcohol ester of acrylic acid or methacrylic acid as a main constituent monomer. Butyl, isobutyl acrylate, pentyl (meth) acrylate, 2-ethylhexyl (meth) acrylate, isooctyl (meth) acrylate, isononyl (meth) acrylate, decyl (meth) acrylate, lauryl (meth) acrylate, etc. Resin, thermoplastic acrylic elastomer, ethylene-methyl acrylate copolymer resin, ethylene-methyl acrylate copolymer resin, ethylene-ethyl acrylate copolymer resin, ethylene-methyl (meth) acryl Acid ester- (anhydrous) maleic acid copolymer tree It does not have to contain fat.

  Moreover, since acrylic resin has good weather resistance, it is hard to discolor and deteriorate. Further, in the case of a booklet structure described later, it is easy to heat weld with polycarbonate (PC) or polyethylene terephthalate glycol (PETG), and is a widely available inexpensive and abundant material. In addition, it is less susceptible to thermal deformation than thermoplastic elastomers and does not deform when hot pressed.

  The acrylic resin layer (2) is formed by applying the acrylic resin described above on both sides of the natural fiber layer (1). The acrylic resin layer (2) has a thickness of 0.5% to 30% on one side with respect to the natural fiber layer (1). When the thickness of the acrylic resin layer (2) is less than 0.5%, the acrylic resin cannot sufficiently permeate the surface of the natural fiber layer (1), and the fibers forming the natural fiber layer (1) Fraying easily occurs, and welding with the connecting portion (5) is weakened. When the acrylic resin layer (2) exceeds 30%, the thickness of the acrylic resin layer (2) becomes so thick that the booklet binding portion (3a) becomes too tight and the booklet is difficult to fold. Moreover, although it is preferable that the thickness of the acrylic resin layers (2) on both sides is the same, it can be appropriately set within a range in which no warpage occurs.

  The acrylic resin layer (2) can be applied by applying an acrylic resin on the natural fiber layer (1) in a solution state and drying and fixing. The coating method is not particularly limited, and examples thereof include known methods such as spraying, gravure coater, knife coater, roll coater, and comma coater.

(Connecting part)
The connecting portion (5) has polycarbonate (PC) or polyethylene terephthalate glycol (PETG), polyvinyl chloride (PVC), acrylonitrile-butadiene-styrene copolymer resin (ABS resin) on both surfaces of a part of the booklet binding layer (3). A thermoplastic resin layer (4) such as the above is laminated. The thermoplastic resin layer (4) only needs to have the same material on both surfaces, preferably the same material on both surfaces, and the same material may be formed of a plurality of layers such as two or three layers. Polycarbonate (PC) or polyethylene terephthalate glycol (PETG), polyvinyl chloride (PVC), acrylonitrile-butadiene-styrene copolymer resin (ABS resin), polyester thermoplastic elastomer (TPC), etc., and intermediate sheet layer (7) and material By making the same, the connecting portion (5) and the intermediate sheet layer (7) are integrated by heat welding, and the connecting portion between the connecting portion (5) and the intermediate sheet layer (7) is prevented from being removed. Can do.

  Even when different materials are used, warpage can be prevented by providing a symmetrical structure with respect to the intermediate sheet layer (7). The thickness of the connecting portion (5) (the total thickness of the booklet binding layer (3) and the thermoplastic resin layer (4)) is 100% or more and 200% or less as compared with the intermediate sheet layer (7). If it is selected to be the same or thicker, the quality after heat welding is improved. When the thickness of the connecting portion (5) is less than 100% with respect to the intermediate sheet layer (7), a molding failure occurs due to a weak press pressure applied to the connecting portion (5) during heat welding. When the thickness of the connecting portion (5) exceeds 200% with respect to the intermediate sheet layer (7), the press pressure received by the intermediate sheet layer (7) portion becomes weak, resulting in poor molding. This is presumed that the natural fibers of the booklet binding layer (3) are crushed and thinned by the pressure at the time of heat welding, and the resin of the connecting portion (5) penetrates into the booklet binding layer (3).

  As for the thickness of the thermoplastic resin layer (4), the thickness of one surface is 0.03 mm or more and 0.4 mm or less. If it is less than 0.03 mm, the waist is weak, and it becomes difficult to handle one by one due to static electricity generated by its own friction, making industrial production difficult. When it exceeds 0.4 mm, the plastic sheet becomes too thick, and the handleability is reduced as a booklet. The thicknesses of the thermoplastic resin layers (4) on both sides are preferably the same, but can be appropriately set within a range in which no warpage occurs.

  The length of the connecting portion (5) is not less than 0.3 mm and not more than 39 mm. When it is less than 0.3 mm, a connecting portion with an intermediate sheet layer (7) to be described later becomes small, and sufficient strength cannot be obtained. When the length of the connecting part (5) exceeds 39 mm, if the passport booklet size is 88 mm x 125 mm, an IC inlay (antenna size 49 mm x 81 mm) conforming to JIS6322-1 is incorporated in the intermediate sheet layer (7) I can't let you. The length of the booklet binding portion (3a) is not less than 0.3 mm and not more than the booklet size. When the length of the booklet binding portion (3a) is less than 0.3 mm, it is difficult to bind the yarn with the sewing machine. About the upper limit of length, when it exceeds the bound booklet dimension, the handling as a booklet worsens.

  Next, an example of the data page (A2) using the plastic sheet (A1) of the present invention will be described.

(Data page)
FIG. 2 shows a data page (A2) in the embodiment. FIG. 2A is a plan view of the data page (A2), which includes a booklet binding layer (3) and a data page portion (6). Specifically, the data page (A2) includes an intermediate sheet layer (7) connected to one end of the connecting portion (5), as shown in FIG. 2 (b), which is a sectional view taken along line XX ′ of FIG. 2 (a). The data page portion (6) is formed by laminating an oversheet layer (8) on both sides of the connecting portion (5) and the intermediate sheet layer (7).

  The intermediate sheet layer (7) is formed of a thermoplastic resin such as polycarbonate (PC), polyvinyl chloride (PVC), polyethylene terephthalate glycol (PETG), and can incorporate an IC chip and an antenna therein. The thickness of the intermediate sheet layer (7) is 50% or more and 100% or less compared to the thickness of the connecting portion (5) (the total thickness of the booklet binding layer (3) and the thermoplastic resin layer (4)). It is. When the thickness of the intermediate sheet layer (7) is selected so as to be the same as or thinner than the thickness of the connecting portion (5), the quality after heat welding is improved. When the thickness of the intermediate sheet layer (7) is less than 50% with respect to the thickness of the connecting portion (5), a molding failure occurs due to a weak press pressure applied to the intermediate sheet layer (7) during heat welding. To do. When the thickness of the intermediate sheet layer (7) exceeds 100% with respect to the connecting portion (5), the pressing pressure received by the portion of the connecting portion (5) becomes weak, resulting in poor molding. The reason why the material is the same as that of the connecting portion (5) is to prevent the data page from being falsified by removing the connecting portion.

  The welding of the intermediate sheet layer (7) and the connecting portion (5) is formed by thermal welding. The forming method is not particularly limited, and a known thermoforming machine, thermocompression bonding machine, ultrasonic processing machine or the like is used, and polycarbonate (PC), polyvinyl chloride (PVC), polyethylene terephthalate glycol (PETG) is heated to the melting temperature. Then, the intermediate sheet layer (7) and the connecting portion (5) are integrated.

  The oversheet layer (8) is made of a thermoplastic resin such as polycarbonate (PC), polyvinyl chloride (PVC), polyethylene terephthalate glycol (PETG), which is the same material as the intermediate sheet layer (7). The oversheet layer (8) may have a multi-layer structure such as two layers or three layers when the layers in direct contact with the intermediate sheet layer (7) are integrated with the same material by thermal welding. For example, when the oversheet layer (8) has a plurality of layers, a print sheet, an OVD sheet (optical change element layer), or a laser coloring sheet may be placed in the plurality of layers.

  The oversheet layer (8) and the intermediate sheet layer (7) are made of the same material by integrating the intermediate sheet layer (7) and the connecting portion (5) by heat welding. This is to prevent tampering due to peeling.

  As for the thickness of the oversheet layer (8), the thickness of one surface is 0.03 mm or more and 0.4 mm or less. If the thickness is less than 0.03 mm, the waist is weak and it becomes difficult to handle one by one due to static electricity, making industrial production difficult. When the thickness exceeds 0.4 mm, the plastic card becomes too thick, and the handleability is deteriorated as a passport.

  The data page portion (6) is formed by laminating the oversheet layer (8) on both surfaces of the intermediate sheet layer (7) and the connecting portion (5) by thermal welding. The forming method is not particularly limited, and a polycarbonate that forms the oversheet layer (8), the intermediate sheet layer (7), and the connecting portion (5) using a known thermoforming machine, thermocompression bonding machine, ultrasonic processing machine, or the like. (PC), polyvinyl chloride (PVC), polyethylene terephthalate glycol (PETG) are heated to the melting temperature and melted, and the oversheet layer (8) is integrated with the intermediate sheet layer (7) and the connecting portion (5). It is formed.

  Examples of the present invention will be described with reference to FIGS. 1 and 2 in the same manner as the above-described embodiment. The contents of the present invention are not limited to the scope of these examples.

  In this example, a booklet binding layer (3) in which cotton is used for the natural fiber layer (1) and the acrylic resin layer (2) is laminated on both sides of the plastic sheet (A1) shown in FIG. ) Is formed by laminating polycarbonate (PC) as a thermoplastic resin layer (4) on a part of both surfaces to form the connecting portion (5).

(Booklet binding layer)
As the booklet binding layer (3), a laser cloth (thickness 0.2 mm, dimensions 30 mm (vertical) × 300 mm (horizontal): manufactured by Toyo Cloth Co., Ltd.) coated with acrylic resin on cotton was used.

(Plastic sheet with booklet binding)
The thermoplastic resin layer (4) is composed of polycarbonate (PC: trade name “WC-020”, thickness 0.15 mm, dimensions 10 mm (length) × 300 mm (width): manufactured by Mitsubishi Gas Chemical) and polycarbonate (PC: product). The name “WC-020”, thickness 0.10 mm, dimensions 10 mm (length) × 300 mm (width): manufactured by Mitsubishi Gas Chemical Co., Ltd.) were used. The connecting portion (5) is produced using an SD molding press (“SDOP-1042-2HC-AT-WC1V-PG3” manufactured by Dumbbell Co., Ltd.) from 160 ° C. to 199 ° C. for 30 seconds. Thermocompression bonding was performed at a machine setting of 5 MPa, and after heat welding, it was cooled to 55 ° C. and produced.

(Data page)
Next, the data page (A2) shown in FIG. 2 was laminated with polycarbonate on the intermediate sheet layer (7) and the oversheet layer (8) to form the data page portion (6).

  For the oversheet layer (8), polycarbonate (PC: trade name “LM-01”, thickness 0.1 mm, dimensions 100 mm (vertical) × 300 (horizontal) mm: manufactured by Mitsubishi Gas Chemical Company) was used.

  As the intermediate sheet layer (7), polycarbonate (PC: trade name: “WC-020”, thickness: 0.4 mm, dimensions: 90 mm (length) × 300 mm (width): manufactured by Mitsubishi Gas Chemical Company) was used.

  For the welding of the intermediate sheet layer (7) and the connecting portion (5), the intermediate sheet layer (7) was aligned on the connecting portion (5) side of the booklet binding layer (3) and temporarily fixed with an ultrasonic welding machine. The data page section (6) is formed by laminating the oversheet layer (8) on both sides of the booklet binding layer (3) and the intermediate sheet layer (7) and temporarily fixing with an ultrasonic welding machine. Using a SD molding press (“SDOP-1042-2HC-AT-WC1V-PG3” manufactured by Dumbbell Co., Ltd.), thermocompression bonding from 160 ° C. to 199 ° C. for 30 seconds at a mechanical setting of 1.5 MPa The data page (A2) was prepared by taking out after cooling to 55 ° C. after heat welding.

  Similarly, as Production Example 2, a data page was obtained under the same conditions as described above except that polyethylene terephthalate glycol (PETG) was used for the thermoplastic resin layer (4), the intermediate sheet layer (7), and the oversheet layer (8). (A2) was produced.

  As the thermoplastic resin layer (4), polyethylene terephthalate glycol (PETG: trade name “PG010M”, thickness 0.25 mm, dimensions 10 mm (length) × 150 mm (width): manufactured by Taihei Chemical Products Co., Ltd.) was used. The connecting part (5) is produced using an SD molding press (“SDOP-1042-2HC-AT-WC1V-PG3” manufactured by Dumbbell Co., Ltd.) from 90 ° C. to 110 ° C. for 30 seconds. Thermocompression bonding was performed at a machine setting of 5 MPa, and after heat welding, it was cooled to 55 ° C. and produced.

  For the intermediate sheet layer (7), an IC sheet made of polyethylene terephthalate glycol (PETG) equipped with a non-contact IC chip and an antenna was used.

  For the oversheet layer (8), polyethylene terephthalate glycol (PETG: trade name “PG010M”, thickness 0.10 mm, dimensions 100 mm (length) × 150 mm (width): manufactured by Taihei Chemical Products Co., Ltd.) was used.

  After temporarily fixing with an ultrasonic welding machine in the same manner as described above, using an SD molding press (“SDOP-1042-2HC-AT-WC1V-PG3” manufactured by Dumbbell Co., Ltd.), from 90 ° C. to 110 ° C., Thermocompression bonding was performed at a mechanical setting of 1.5 MPa for 30 seconds, and the product was cooled to 55 ° C. after heat welding.

  As Production Example 3, a data page (A2) was produced under the same conditions as in Production Example 1 except that the thermoplastic resin layer (4) was used as a polyester-based thermoplastic elastomer (TPC) as a thermoplastic elastomer.

  The thermoplastic resin layer (4) comprises a polyester thermoplastic elastomer (TPC: trade name “Hytrel”, thickness 0.15 mm, dimensions 10 mm (vertical) × 300 mm (horizontal): manufactured by Nippon Matai)) and polyester thermoplastic. An elastomer (TPC: trade name “Hytrel 4001T-X04”, thickness 0.15 mm, dimensions 10 mm (length) × 300 mm (width): manufactured by Nippon Matai Co., Ltd.) was used. The connection part (5) is produced using an SD type press (“SDOP-1042-2HC-AT-WC1V-PG3” manufactured by Dumbbell Co., Ltd.) from 140 ° C. to 170 ° C., 30 seconds, 1.5 MPa. Thermocompression bonding was performed at the machine setting, and after heat welding, it was cooled to 55 ° C. and produced.

  After temporarily fixing with an ultrasonic welding machine in the same manner as described above, using an SD molding press (“SDOP-1042-2HC-AT-WC1V-PG3” manufactured by Dumbbell Co., Ltd.), from 160 ° C. to 199 ° C., A data page (A2) was produced by performing thermocompression bonding at a mechanical setting of 1.5 MPa for 30 seconds, cooling to 55 ° C. after heat welding, and then taking out.

(Evaluation)
Next, it was confirmed whether or not the warpage of Production Example 1, Production Example 2 and Production Example 3, the step, and the connection portion of the connection portion (5) could be removed. In addition, the caliper (Mitsutoyo Corporation 530-101 N15) was used for confirmation of the height of a curvature and a level | step difference. Whether or not the connection portion between the connecting portion (5) and the intermediate sheet layer (7) can be removed was determined by a cutting method using a cutter.

  The height and step of the warp could not be confirmed, and it was confirmed that the data page had no warp and step. Moreover, since the connection location of the connection part (5) and the intermediate | middle sheet layer (7) was integrated, it was not able to remove.

DESCRIPTION OF SYMBOLS 1 Natural fiber layer 2 Acrylic resin layer 3 Booklet binding layer 3a Booklet binding part 4 Thermoplastic resin layer 5 Connection part 6 Data page part 7 Intermediate sheet layer 8 Oversheet layer A1 Plastic sheet A2 Data page

Claims (3)

A booklet binding portion comprising a booklet binding layer (A) in which a thermoplastic resin layer made of a thermoplastic resin (excluding a thermoplastic elastomer) is laminated on both surfaces of a natural fiber layer;
Adjacent to the booklet binding part, and having a connecting part in which a thermoplastic resin layer is laminated on both surfaces of the booklet binding layer (B) having the same laminated configuration as the booklet binding part,
The data sheet plastic sheet, wherein the booklet binding portion and the connecting portion are integrated via the booklet binding layers (A, B).   The plastic sheet for data pages according to claim 1, wherein the natural fiber layer is a cloth foil, a woven fabric, a non-woven fabric, a knitted fabric, or a sheet made of at least one of cotton, silk, hemp, and cellulose fibers.   3. The connecting portion according to claim 1 or 2, and an intermediate sheet layer made of a thermoplastic resin connected to the connecting portion, and an overcoat made of a thermoplastic resin on both surfaces of the connecting portion and the intermediate sheet layer. A data page for a passport, which is formed by laminating sheet layers.

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