JPS62242593A - Manufacture of information card - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a method for manufacturing information cards, such as credit cards and 10 cards, on which predetermined information is engraved and recorded.

[Prior art]

For example, various measures are adopted to prevent forgery, theft, etc. of identification cards such as credit cards and ID cards. One such method is to record specific personal information on a card as a concave-convex phase hologram, irradiate it with hologram reproduction light during verification, detect the hologram diffraction light with an optical sensor, and read the information recorded on the card. This is known, for example, from Utility Model Publication No. 57-36456. However, a concave-convex hologram imprinted on a thermoplastic resin film is susceptible to heat, solvents, scratches, etc., and the surface needs to be protected with a durable resin sheet.

Therefore, in conventional cards of this kind, a film having a concavo-convex pattern and a protective sheet for protecting the concavo-convex pattern are laminated, and these are bonded together using a thermosetting adhesive that requires heating.

[Problem that the invention seeks to solve]

By the way, since the concave-convex pattern that records information is formed as a fine pattern by thermal imprinting, the concave-convex pattern may be thermally deformed and damaged during the process of heat-pressing the film and the protective sheet as described above. can occur. Therefore, manufacturing information cards by heat pressure welding has a low yield.
There is a problem with their productivity.

[Means for solving problems]

In the present invention, when a protective sheet is laminated on both sides of a hologram sheet recording a concavo-convex pattern and heat-press bonded to the hologram sheet, a portion of the outermost layer of a plurality of laminated sheets facing the concavo-convex pattern is The heat-reflecting sheet is laminated with a heat-reflecting sheet, which is then heat-pressed and then removed. Thereby, the present invention provides a method for manufacturing an information card in which the concavo-convex pattern is not thermally damaged by heat-pressure welding during the manufacturing of the information card, and the productivity can be improved.

The method for manufacturing an information card of the present invention is a method for manufacturing an information card in which sheets are laminated on both sides of a sheet having a concavo-convex pattern recorded thereon and heat-press bonded to each other, wherein the outermost layer of the plurality of sheets is A heat ray reflective sheet is arranged on the surface of the portion facing the uneven pattern, and a plurality of laminated sheets are heat-pressed and then heat-pressed, and the heat ray reflective sheet is removed.

(Function) When heat-pressing a hologram sheet and a protective sheet in a laminated state, place a heat ray reflective sheet on the portion of the outermost sheet that faces the uneven pattern formed on the porogram sheet, and then heat the sheet. The uneven pattern is shielded from the heat rays during heat welding.This prevents the uneven pattern from being thermally damaged during the heat pressure welding process and improves the yield during manufacturing. By removing the heat ray reflective sheet, the uneven pattern can be irradiated with reproduction light and can be used as an information card.

(Example) The present invention will be explained in detail below with reference to drawings showing examples.
The figure is an external perspective view of an information card manufactured by the manufacturing method according to the present invention, and FIG. 2 is an exploded perspective view of the information card.
FIG. 3 is an enlarged longitudinal sectional view of the information card.

In FIGS. 1 to 3, 1 is an information card manufactured by integrating a plurality of sheets by heat-pressure welding. As shown in FIGS. 2 and 3, this information card 1 has a rectangular shape and consists of five sheets all having the same external dimensions, namely, a first protective sheet 2 and a hologram sheet superimposed on the top surface of the first protective sheet 2. 3, a second protective sheet 4 to be polymerized on the upper surface of this hologram sheet 3, and this second protective sheet 4
It is constructed by laminating and integrating five sheets: a third protective sheet 5 that is polymerized on the upper surface of the protective sheet 5, and a fourth protective sheet 6 that is further polymerized on the upper surface of the third protective sheet 5.

The hologram sheet 3 is made of a transparent plastic sheet with a thickness of 0.18 fins, and a rectangular transparent section 3b is formed near one edge 3a in the width direction parallel to the edge. The portion other than the portion 3b is a printing adhering portion 3c on which appropriate characters can be printed on both sides and an appropriate heating type adhesive is attached.

A plurality of concavo-convex holograms 10 are stamped and recorded on the transparent portion 3b at appropriate intervals in the length direction of the transparent portion 3b and perpendicular to the length direction.

This uneven hologram lO represents specific information.

1st. Second. Fourth protective sheet 2. 4. 6 has a thickness of 0. It is made of IW transparent plastic sheet.

In the second protective sheet 4, when the second protective sheet 4 and the hologram sheet 3 are superposed, the inner dimension of the second protective sheet 4 is set within the transparent portion 3b at a position corresponding to the transparent portion 3b of the hologram sheet 3. A rectangular opening 4a whose dimension is slightly shorter than the normal dimension is formed. The thickness of the third protective sheet 5 is 0.
．． The third protective sheet 5 is made of a 18wm transparent plastic sheet, and when the third protective sheet 5 is polymerized with the second protective sheet 4, the opening 4a of the second protective sheet 4 is formed. An opening 5a corresponding to the opening 4a is formed at a position facing the hologram sheet 3, and both sides of the portion excluding the opening 5a are printed adhered portions 5b similar to the hologram sheet 3. 7 is a strip temporarily pasted on the outer surface of the outermost protective sheets 2 and 6, that is, the first and fourth protective sheets 2.6 (the surface that does not face the hologram sheet 3 and the third protective sheet 5). It is a type of heat ray reflective sheet, such as aluminum foil, and has a weak adhesive attached to one side of the sheet to enable adhesion and peeling. The heat ray reflective sheet 7 is a transparent portion 3 recording the uneven hologram IO.
It is large enough to sufficiently cover b.

Next, a method of manufacturing an information card using each of these sheets will be explained. First, on top of the first protective sheet 2, a hologram sheet having printed adhesion parts 3c on both sides and having a concavo-convex hologram 10 engraved thereon is placed, and a second protective sheet 4 is placed on top of the hologram sheet, and on top of that a hologram sheet is placed on both sides. A third protective sheet 5 having a printed adhering portion 5b is laminated thereon, and a fourth protective sheet 6 is laminated thereon with their respective edges aligned.

After that, a heat ray reflective sheet 7 is pasted on each of the pasted parts 2a and 6a on the outer surface of the first and fourth protective sheets 2.6, which face the transparent part 3b where the uneven hologram IO is engraved and recorded on the hologram sheet 3. Ru.

The laminated state of each sheet is loaded into a heating and pressure welding device (not shown) and heated and pressurized at the same time to form a thermosetting adhesive for the printed areas 3c and 5b of the hologram sheet 3 and the third protective sheet 5. are melted and fixed to form a single unit. The heat rays for heating in this heat-pressure welding process are approximately uniformly incident on the print-covered parts 3c and 5h, and
c, 5b is raised to a predetermined temperature to bond each sheet.

On the other hand, since the heat rays that enter from both sides of the hologram sheet 3 are blocked by the heat ray reflective sheet 7 on the transparent part 3b on which the uneven hologram 1O is engraved and recorded, the heat rays do not enter and the uneven hologram 10 is affected by the heat rays. No damage to the product.

Then, after the heat-pressing operation was completed, the integrated card-shaped information card was taken out from the heat-pressure-welding device, and the heat ray reflective sheet 7, which had been pasted to protect it from the heat rays during heating, was taken out.
is peeled off by appropriate means, and the manufacturing process of the information card is completed.

The information card manufactured in this manner can be used for the second time if hologram reproduction light is irradiated during verification. Third protective sheet 4.
Since reproduction light can be incident on the uneven hologram 10 through the openings 4a and 5a of the hologram 5, it can be used in the same manner as a conventional information card.

According to the present invention, before heat-pressure welding is performed to produce an information card, the uneven hologram I is attached to the heat ray reflective sheet 7.
Since O is shielded from heat rays, the concavo-convex hologram 10 will not be damaged by the heat rays heated during manufacturing, and the yield in manufacturing information cards will be improved, greatly increasing productivity.

〔effect〕

As detailed above, according to the present invention, when an information card is manufactured by heat pressure welding, a heat ray reflective sheet is attached to prevent the concavo-convex hologram from being affected by the heat rays during heating, thereby preventing thermal damage. Therefore, the yield when manufacturing information cards is improved by heat-pressure welding, and there is an excellent effect that the productivity can be greatly improved.

[Brief explanation of drawings]

FIG. 1 is an external perspective view of an information card manufactured by the manufacturing method of the present invention, FIG. 2 is an exploded perspective view of the information card, and FIG. 3 is an enlarged longitudinal sectional view of the information card. l...Information card 2...First protection sheet 3...
・Hologram sheet 3b...Transparent part 3c...Printed area 4...Second protective sheet 4a...Opening part 5
...Third protective sheet 6...Fourth protective sheet 7
... Heat ray reflection sheet) 10 ... Uneven hologram patent Applicant Sanyo Electric Co., Ltd. Agent Patent attorney Noboru Kono 41 Figure z 3 Diagram 2

Claims (1)

[Scope of Claims] 1. A method for manufacturing an information card in which sheets are laminated on both sides of a sheet having a concavo-convex pattern recorded thereon so as to be sandwiched therebetween and are welded under heat and pressure. An information card characterized in that a heat ray reflective sheet is placed on the surface of the portion facing the uneven pattern and a plurality of laminated sheets are heat-press bonded, and the heat ray reflective sheet is removed after heat-press bonding. Production method.