JP2000219855A - Adhesive sheet, apparatus for producing the same, its production, its storage, and tool for storing the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method for demonstrating original properties of a resin agent which constitutes an adhesive material. SOLUTION: An adhesive sheet 10 is obtained by processing reactive hot-melt resin 10' which solidifies at ordinary temperature and softens when heated so as to have a specific thickness and width. By this constitution, reactive hot-melt resin 10' which was processed to have a specific thickness 't' and a specific width 'w' solidifies at ordinary temperature, so that it can be handled simply and easily. Therefore, the adhesive sheet 10 can be adequately utilized as an adhesive material in adhesion steps for IC cards, ID cards, and so on.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is used for ID cards and IC cards such as cash cards, employee ID cards, employee ID cards, member ID cards, student ID cards, alien registration IDs and various driving licenses. Adhesive sheet suitable for production and storage of an adhesive member, a manufacturing apparatus thereof, a manufacturing method thereof,
The present invention relates to a storage method and a storage device. More specifically, when a reactive hot-melt resin that solidifies in a normal temperature state and softens in a heated state is used as an adhesive member, the properties inherent in the resin agent can be exhibited.

[0002]

2. Description of the Related Art In recent years, an IC card in which an IC chip or an antenna is sealed in a resin card has been proposed. Since this type of IC card is a non-contact type, it has no information input / output terminals. Therefore, the information is used by converting it into a specific modulated radio wave, receiving it with an antenna, demodulating it with an IC chip, writing it into a memory or the like, or reading it out.

[0003] The non-contact type IC card is disclosed, for example, in Japanese Patent Application Laid-Open No. 9-275184 as "information carrier and method for producing the same".
According to this technical document, an electronic component such as an IC chip or an antenna body is sandwiched between reinforcing members in the form of a woven fabric, and bonded with upper and lower cover sheets via a two-component mixed type epoxy-based adhesive member or the like. Thus, an IC card is formed. Thereby, the IC card itself can be formed thin.

By the way, in this type of IC card, a printed member is used as a member for the front side, and for example, “○○○ employee ID”, “name”, “issue date”. Such image display information is often printed. The printing member is provided with an image receiving layer for forming a photograph of the face of the user of the card. A face photograph or the like is formed by sublimation thermal transfer using a thermal head, melt thermal transfer, or ink jet means. This I
The back sheet serving as a member for the substrate of the C card may be provided with a writing layer that can be written with a pen.

[0005] Therefore, when mass production of cash cards, employee cards, employee cards, membership cards, student cards, alien registration cards, various driver's licenses, and the like are performed, the electronic parts supplied automatically are not image-capable. A surface member on which display information is printed or a substrate member having a writing layer is often used in the form of a long sheet. Of course, there are cases where ten or twenty cards are manufactured using large-sized sheets.

[0006] The surface member, the housing member, and the substrate member thus formed into a long sheet are bonded together by a vacuum hot press or the like with a liquid adhesive member interposed therebetween. The long sheet-shaped card aggregate after the heat bonding is cut into one unit of card aggregate. Thereafter, when the card assembly is completely cured, IC cards are punched out one by one from the card assembly by a punching device or the like.

[0007]

However, in response to a demand for mass production of cash cards, employee cards, employee cards, membership cards, student cards, alien registration cards, various driver's licenses, etc., long sheets are required. When a method is used in which a member for a substrate in the form of a sheet or a large plate, a housing member, and a member for a surface are bonded with a liquid adhesive member, an equal amount of the adhesive member is applied to the housing member. Becomes difficult.

Accordingly, the thickness of the adhesive layers on the front and back of the storage member may be uneven, and the card surface may be uneven. The unevenness deteriorates the flatness of the card, which hinders the manufacture of an IC card having a uniform thickness.

In addition, it is necessary to pay attention to the management of maintaining the viscosity of the hot-melt liquid adhesive resin at a constant viscosity and to prevent the nozzle port from solidifying. Incidentally, the production may be performed continuously, but the production line may be stopped under various circumstances. At that time, the normal adhesive flows out, and solidification occurs around the nozzle opening, a change in the discharge diameter, or a change in the viscosity or material of the portion where the adhesive and the gas come into contact, When the production was resumed, the instability of the cards occurred, and the production yield was deteriorated. In addition, the size of the discharge diameter of the nozzle port changes over time, which makes maintenance very troublesome.

[0010] As a result, if an attempt is made to apply an equal amount of the adhesive member, the discharge amount of the adhesive member must be determined while monitoring the progress with the vacuum heat press device, which increases the load on the control system. Therefore, the feedback control becomes complicated.

In view of the above, the present invention has been made to solve the above-mentioned problem, and has an adhesive sheet capable of exhibiting the inherent characteristics of the resin constituting the adhesive member, an apparatus for manufacturing the same, a method for manufacturing the same, and a method for manufacturing the same. It is an object to provide a storage method and a storage device thereof.

[0012]

In order to solve the above-mentioned problems, the adhesive sheet according to the present invention comprises a reactive hot-melt resin before curing, which solidifies at room temperature and softens at a temperature lower than the curing heating temperature. It is characterized by being processed to a predetermined thickness and size.

According to the adhesive sheet of the present invention, the reactive hot-melt resin processed into a predetermined thickness and size is solidified at room temperature, so that it can be handled easily and easily. Therefore, in the bonding process of an IC card, an ID card, and the like, the adhesive sheet can be sufficiently applied as an adhesive member.

The first apparatus for producing an adhesive sheet according to the present invention comprises a processing means for heating and softening a reactive hot melt resin at a curing heating temperature or lower, and a heating and softening treatment at a curing heating temperature or lower by the processing means. And a shaping means for shaping the reactive hot melt resin to a predetermined thickness and width.

According to the first apparatus for producing an adhesive sheet of the present invention, the reaction type hot melt resin is heated and softened at a temperature not higher than the curing heating temperature by the processing means.
When the core member is supplied from the supply member for the core member to the processing means, the reactive hot melt resin heated and softened at the curing heating temperature or lower infiltrates the core member. The reactive hot melt resin soaked in the resin is shaped into a predetermined thickness and width.

Therefore, the solidification at normal temperature makes handling easy and easy, and the IC card and ID
In the bonding step of a card or the like, an adhesive sheet that is softened by heating can be manufactured with good reproducibility.

A second apparatus for producing an adhesive sheet according to the present invention comprises a shaping mold having a recess having a predetermined depth and a width, and a reactive hot melt resin in the shaping mold at a curing heating temperature or lower. And an injecting means for injecting after heating and softening.

According to the second apparatus for manufacturing an adhesive sheet of the present invention, a shaping mold having a concave portion having a predetermined depth and a predetermined width is formed by:
For example, when the core member is supplied from the core member supply unit, the reactive hot melt resin is heated and softened and injected by the injection unit.

Therefore, an adhesive sheet made of a reactive hot-melt resin having a predetermined thickness and width can be manufactured with good reproducibility. In addition, it is possible to provide an adhesive sheet which is easy and easy to handle by solidifying under normal temperature conditions, and which is softened by heating in the bonding process of IC cards and ID cards.

In the method for producing an adhesive sheet according to the present invention, a step of heating and softening a reactive hot melt resin at a temperature not higher than a curing heating temperature, and a step of heating and softening the reactive hot melt resin having a predetermined thickness and width. Characterized by having a step of shaping.

According to the method for producing an adhesive sheet of the present invention,
An adhesive sheet that is easy and easy to handle by solidifying at room temperature and that softens when heated in the bonding step of IC cards and ID cards can be manufactured with good reproducibility.

The method for storing an adhesive sheet according to the present invention is a method for storing an adhesive sheet obtained by processing a reactive hot-melt resin into a predetermined thickness and size, which solidifies at room temperature and softens at a temperature lower than the curing heating temperature. Wherein the adhesive sheets are laminated with a releasable member interposed therebetween.

According to the method for storing an adhesive sheet of the present invention,
The adhesive member in which the adhesive sheets are laminated can be made compact without the adhesive sheets being bonded to each other and without occupying a large storage space. Accordingly, since the adhesive member can be handled at the component level, the IC
In the step of bonding the card and the ID card, the adhesive sheets can be taken out in order and the cards and the like can be bonded smoothly.

The storage device for an adhesive sheet according to the present invention separates a reactive hot-melt resin, which solidifies at room temperature and softens at a heating temperature lower than the curing heating temperature, between adhesive sheets processed into a predetermined thickness and size. A tool for storing an adhesive member laminated body laminated with a shape member interposed therebetween is characterized by comprising a non-breathable sealing body for accommodating the adhesive member laminated body.

According to the adhesive sheet storage device of the present invention, the adhesive sheets are laminated without contacting the adhesive sheets with air, without bonding the adhesive sheets, and without occupying a large storage space. The sealing member can be compactly stored in the adhesive member. Therefore, since the adhesive member can be handled at the component level, the adhesive sheets can be sequentially taken out of the sealing body and the cards and the like can be smoothly bonded in the bonding process of the IC card and the ID card.

[0026]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an adhesive sheet, an apparatus for manufacturing the same, a method for manufacturing the same, a method for storing the same, and a storage device therefor will be described with reference to the drawings. (1) Adhesive Sheet FIG. 1 is a perspective view showing a configuration example of an adhesive sheet 10 as an embodiment of the present invention. In the present embodiment, when a reactive hot-melt resin that solidifies at room temperature and softens under a heated condition is used as an adhesive sheet, the characteristics of the reactive hot-melt resin can be exhibited. It is.

The adhesive sheet (sheet-like adhesive member) 10 according to the present invention has a reaction type hot-melt resin 10 ′ which solidifies at room temperature and softens at a temperature lower than the curing heating temperature and has a predetermined thickness t shown in FIG. And a width w. Examples of the adhesive member include a polyamide-based reactive hot melt resin such as a macro melt series manufactured by Henkel and a Calflex T manufactured by Shell Chemical.
R and Quinton series, Asahi Kasei Co.,
Firestone Synthetic Ruby
Phil and Ruff & Latex
Thermoreversible elastomeric reactive hot melt resins such as Solprene 400 series manufactured by ps Petroleum are preferred.

Sumitomo Chemical's Sumitics, Chisso Petrochemical's Vistax, Mitsubishi Yuka's Yucatak, Henkel's Macromelt Series, Mitsui Petrochemical's Tuffmer, Ube Lexen's APAO ,
Preferred are polyolefin-based reactive hot melt resins such as Eastman Bond manufactured by Eastman Chemical Company and A-FAX manufactured by Hercules Company. Further, TE030 and TE100 manufactured by Sumitomo 3M Limited, and Hibon 4820 manufactured by Hitachi Chemical Polymer Co., Ltd. , Bondmaster 170 series manufactured by Kanebo NSC, Ma manufactured by Henkel
A reactive hot melt resin such as Croplast QR3460 is preferred, and a reactive hot melt resin of an ethylene / vinyl acetate copolymer system or a polyester reactive hot melt resin is preferred.

The reactive hot melt resin 10 'softens and liquefies in a heated state, but solidifies in a normal temperature state, so that its handling is very convenient. Then, the reactive hot melt resin 10 'has a property of absorbing moisture and hardening after bonding. Compared to a normal hot melt resin, the reactive hot melt resin 10 ′ is 90 ° C. after curing,
Even under a high temperature of 100 ° C., there is little deterioration and it can be used optimally.

FIG. 2 is a sectional view showing a configuration example of the adhesive sheet 31 with release paper as an example of the adhesive sheet 10.
The adhesive sheet 31 with release paper shown in FIG. 2 is formed by injecting a reactive hot melt resin 10 ′ into a shaping mold or the like having a concave portion of a predetermined depth and width, and forming the reactive hot melt resin itself. Is processed into a predetermined thickness t and width w. In this example, a release sheet 24 having good releasability is provided on the front surface or the back surface of the adhesive sheet 10.
This is to prevent the adhesive sheets from sticking to each other when the adhesive sheets 10 are stacked. Of course, the release sheet 24 may be provided on the front and back surfaces of the adhesive sheet 10. Since the release sheet 24 is peeled off during the bonding process and becomes an unnecessary material, it is also referred to as paper.

FIGS. 3A to 3C show adhesive sheets 32, 32 ', 3' with a core member as another example of the adhesive sheet 10. As shown in FIGS.
3A is a cross-sectional view illustrating a configuration example of 2 ″. The adhesive sheet 32 with a core member illustrated in FIG. 3A is obtained by infiltrating the reactive hot melt resin 10 ′ with the core member 3A as a core and then solidifying the same. For the core member 3A, a porous foamed resin sheet, a porous flexible resin sheet, a porous resin sheet or a nonwoven fabric sheet is used. And a predetermined thickness t ′ and width w including the core member 3A.

Adhesive sheet 3 with core member shown in FIG. 3B
Reference numeral 2 'denotes a material obtained by impregnating the reactive hot melt resin 10' with one surface of the core member 3A as a nucleus and then solidifying the resin. As the core member 3A, a porous foamed resin sheet, a porous flexible resin sheet, a porous resin sheet, or a nonwoven fabric sheet is used.

An adhesive sheet 3 with a core member shown in FIG. 3C
No. 2 "is obtained by infiltrating the reactive hot melt resin 10 'into the core member 3A as a nucleus at an equal thickness on both sides and then solidifying the core. The core member 3A also has a porous foam. A flexible resin sheet, a porous flexible resin sheet, a porous resin sheet or a non-woven sheet is used.In this example, a predetermined thickness t ″ and width including the reactive hot melt resin and the core member 3A are used. It is processed to the size of w.

As described above, according to the adhesive sheets 10, 31, 32, 32 ', 32 "according to the present embodiment, the reaction formed into the predetermined thicknesses t, t', t" and the width w. The mold hot melt resin 10 'solidifies at room temperature, so that it can be handled simply and easily. In addition, since the adhesive sheet is softened and liquefied in a heated state, the adhesive sheets 10 and 3 can be used in the step of attaching IC cards and ID cards.
1, 32 can be sufficiently exhibited as an adhesive member.

Here, the core member 3A contains electronic components necessary for a non-contact type IC card such as an IC chip, an antenna, and a capacitor, and a case where these electronic components are not contained. There is. In particular, the latter is an example in which no electronic component is put inside the core member in order to prevent the thickness of the reactive hot melt resin from changing due to elongation or the like as the original role of the core member 3A.

(2) Adhesive Sheet Manufacturing Apparatus FIG. 4 shows an adhesive sheet manufacturing apparatus 10 according to the present embodiment.
1 is a block diagram illustrating a configuration example of FIG. In this example, it is assumed that a device for manufacturing a long sheet-shaped adhesive sheet 3 by impregnating a reactive hot melt resin 10 ′ into a core member 3A. An adhesive sheet manufacturing apparatus (first manufacturing apparatus) 101 shown in FIG. 4 includes a core member supply unit 4 as a core member supply unit.
1 and an adhesive liquid application tank 42 as a processing means. A porous sheet-shaped core member 3A is set in the core member supply section 41 in advance. Of course, for the core member 3A,
A porous thermosetting resin film, a foamable resin sheet, a flexible resin sheet, a porous resin sheet or a nonwoven fabric sheet is used.

A drive roller 43 is provided downstream of the core member supply section 41, and a sheet-shaped core member 3A fed from the core member supply section 41 is fed in a predetermined direction. An adhesive liquid application tank 42 is provided downstream of the driving roller 43,
The reactive hot melt resin 10 'is applied and held on the core member 3A by heating and softening at a curing heating temperature or lower and softening. The adhesive liquid deposition tank 42 contains a reactive hot melt resin 10 ′. For example, the electric heater 4
4 and the reactive hot melt resin 10 ′
Heated to <RTIgt;

A shaping means 45 is provided on the downstream side of the adhesive liquid applying tank 42, and the reactive hot melt resin 10 'applied and held on the core member 3A is shaped into a predetermined thickness t and width w. You. The shaping unit 45 has a cooling fan 46, a driving roller 47, a blade 48 and a guide 49. The adhesive solution applied to the sheet-shaped core member from the adhesive liquid deposition tank 42 is cooled by a cooling fan 46 which is an example of a cooling unit.

After cooling, the sheet-shaped core member 3A is fed in the direction of the blade 48 by the driving roller 47, and after the thickness t is regulated by the blade 48, the width w is regulated by the guide portion 49. The order of the regulation of the thickness t and the regulation of the width w of the sheet-shaped core member 3A (hereinafter also referred to as the core member-attached adhesive sheet 32) to which the reactive hot melt resin 10 'is adhered may be simultaneous or the width w. The regulation of the thickness t may be performed before the regulation of.

In this example, a release paper supply section 36 which is an example of supply means for a release member is provided downstream of the shaping means 45, and a release sheet (release mold) for sandwiching the adhesive sheet 32 on one surface thereof is provided. ) Is supplied via a driving roller 37. For the release sheet 24, release paper, oil paper or release powder is used. This is to prevent the adhesive sheets from sticking to each other when the adhesive sheets 32 are stacked in a roll shape. Of course, when the release sheet 24 is provided on the front surface and the back surface of the adhesive sheet 32, the release paper supply unit 36
It is good to provide another one. In the case where two release paper supply units 36 are provided, the waste paper is also separated into two pieces during the bonding step and peeled off.

A take-up portion 57 is provided on the downstream side of the release paper supply portion 36, and the adhesive sheet 32 with a core member having a predetermined thickness t and width w is wound up with the release sheet 24 interposed therebetween. Can be With this release sheet 24, the adhesive sheets can be prevented from joining each other.

As described above, according to the adhesive sheet manufacturing apparatus 101 of the present embodiment, the reactive hot melt resin 10 ′ is heated and softened by the adhesive liquid application tank 42 at a curing heating temperature or lower, and at the same time. When the sheet-shaped core member 3A is supplied from the core member supply section 41 to the adhesive liquid application tank 42, the heated and softened reactive hot melt resin 1
0 'soaks into the core member 3A.

Thereafter, in the shaping means 45, the thickness t of the reactive hot melt resin 10 ′ applied to the sheet-shaped core member 3 A is regulated by the blade 48, and the guide portion 49 is formed.
Because the width w is regulated by the width, the reactive hot melt resin 10 ′ soaked into the core member 3A is shaped into a predetermined thickness t and width w. Accordingly, it is possible to manufacture the adhesive sheet 32 which is easy and easy to handle by solidifying at room temperature and is softened by heating in the bonding step of an IC card, an ID card and the like with good reproducibility.

FIG. 5 is a block diagram showing a configuration example of another manufacturing apparatus 102 for an adhesive sheet. In the adhesive sheet manufacturing apparatus 102 shown in FIG. 5, a cutter 58 for vertical cutting is provided as a cutting means, and the adhesive sheet 32 with a core member is cut into a single sheet. A component cassette box 59 is provided on the downstream side of the cutter 58, and the adhesive sheet 32 'with a core member cut into a single sheet is stacked and stored.

Of course, the above-mentioned release sheet 24 is provided between the adhesive sheet with core member 32 'and the adhesive sheet with core member 32'. The release sheet 24 may be supplied from the above-described release paper supply section 36 from the upstream side of the cutter 58 via the drive rollers 37A and 37B, or may be cut into a predetermined size in advance and the adhesive sheet 3 with a core member.
You may make it provide between 2 'and the adhesive sheet 32' with a core member by hand. This is to prevent the single-sheet adhesive sheets with the core member from being joined to each other. It should be noted that components having the same reference numerals and names as those of the above-described manufacturing apparatus 101 have the same functions, and a description thereof will be omitted.

FIG. 6 is a block diagram showing an example of the structure of another manufacturing apparatus 103 for an adhesive sheet, and FIGS. 7A and 7B are cross-sectional views showing examples of the mold. In this example, it is assumed that a sheet-like adhesive sheet 31 without a core member and a sheet-like adhesive sheet 32 with a core member 3A as a core are manufactured.

An adhesive sheet manufacturing apparatus (second manufacturing apparatus) 103 shown in FIG. 6 constitutes an injection mold molding apparatus and the like. This manufacturing apparatus 103 has a shaping mold 61 and an injection means 62. When manufacturing the sheet-like adhesive sheet 32 having the core member 3A as a core, a core member supply section 81 for supplying the roll-shaped core member 3A and a cutter for cutting the core member 3 into a single sheet shape. 88 are provided.

The shaping mold 61 has a recess 63 shown in FIG. 7A having a predetermined depth d and a length Lx (width not shown) corresponding to the core. The concave portion 63 has a size that forms one adhesive sheet 31 with a core member and the like. When manufacturing the adhesive sheet 32 in this example, the core member 3A
Is arranged.

The upper portion of the concave portion 63 is covered with a lid 64 shown in FIG. 7B corresponding to a cavity, and a space 65 is formed between the concave portion 63 and the lid 64. The lid 64 has an inlet 64A corresponding to a runner. The reactive hot melt resin 10 ′ is injected into the space 65 through the inlet 64 A by the injection means 62. Of course, the reactive hot melt resin 10 ′ is heated and softened by the injection means 62 at a curing heating temperature or lower. The reactive hot melt resin 10 ′ injected into the space 65.
Thereby, the adhesive sheet 31 and the like are formed. When a large number of single sheet adhesive sheets 31 are manufactured at once, a manufacturing apparatus having a configuration in which a plurality of recesses 63 are arranged may be used.

Also in this example, the release sheet 24 is provided on the surface of the adhesive sheet 31. The release sheet 24 is supplied from a release paper supply unit 76 provided near a component cassette box (not shown). A cutter 78 is provided downstream of the release paper supply unit 76, and the release sheet 24 is cut into a predetermined size by the cutter 78. An adhesive sheet 31 without a core member cut into a single sheet is laminated and stored with a release sheet 24 interposed therebetween.

As described above, according to the adhesive sheet manufacturing apparatus 103 of the present embodiment, the shaping die 61 formed by the concave portion 63 having the predetermined depth and width and the lid 64.
The reactive hot melt resin 10 ′ is heated and softened at a curing heating temperature or lower and injected into the space 65 by the injection means 62, so that the reactive hot melt resin 10 ′ is shaped into a predetermined thickness t and width w. Can be manufactured with good reproducibility.

When the core member 3A is supplied from the core member supply section 81 to the recess 63, the reactive hot melt resin 10 'is adhered and held with the core member 3A as a nucleus. The core member 3A can protect the adhesive sheet itself from an external impact, and can produce the adhesive sheet 32 having a predetermined thickness t and width w with a predetermined thickness t and a width w with high reproducibility, which exhibits an adhesive in a heated state. Can be.

Further, the solidification at normal temperature makes handling easy and easy, and the IC card and ID
In the bonding step of a card or the like, an adhesive sheet 31 having a property of being softened by heating can be manufactured.

(3) Method of Manufacturing Adhesive Sheet A method of manufacturing an adhesive sheet according to the first embodiment will be described with reference to FIGS. 7A and 7B. In this example, it is assumed that the adhesive sheet manufacturing apparatus 103 shown in FIG. 6 is used to manufacture an adhesive sheet 31 without a core member. First, a concave mold having a depth d and a length Lx as shown in FIG. 7A is prepared. In this example, depending on the size of the card on which the adhesive sheet 31 is used, for example, assuming the size of a driver's license for a car, the depth d of the concave portion 63 is 3
About 00 μm to 500 μm, and the length Lx of the concave portion 63
Is about 6 cm and the width w is about 9 cm.

Thereafter, the recess 63 and the lid 64 shown in FIG.
The reactive hot melt resin 10 ′ is injected by the injection means 62 while being heated and softened at a curing heating temperature or lower by the injection means 62 into the space 65 formed therebetween. The heating temperature of the reactive hot melt resin 10 ′ is controlled to 110 ° C. to 160 ° C.

When the reactive hot melt resin 10 ′ injected into the space 65 is cooled, a predetermined thickness (t = d) and width w are determined in a self-aligned manner according to the depth and width of the recess 63.
It is possible to form the adhesive sheet 31 having no core member having a size of. A release sheet 24 is formed on one surface of the shaped sheet-shaped adhesive sheet 31 without a core member, and the sheet-shaped adhesive sheet 31 is laminated and stored.

As described above, according to the method for manufacturing the adhesive sheet according to the first embodiment, the solidification is performed at room temperature to make handling easy and easy. A single sheet adhesive sheet 31 having the property of being softened by heating can be manufactured with good reproducibility.

Next, a method for manufacturing an adhesive sheet according to a second embodiment will be described with reference to FIG. FIG. 8A
8D are cross-sectional views illustrating an example of a forming process of the adhesive sheet 32 with a core member as an example thereof. In this example, it is assumed that the apparatus 101 for manufacturing an adhesive sheet shown in FIG. 4 is used to manufacture an adhesive sheet 32 with a core member having a long sheet shape.

First, the sheet-shaped core member 3A shown in FIG.
Prepare In this example, a porous resin film, a porous foamable resin sheet, a flexible resin sheet, a porous resin sheet, or a nonwoven fabric sheet is used as the core member 3A. Thereafter, the adhesive sheet manufacturing apparatus 101 shown in FIG.
To form the reactive hot melt resin 10 ′ into the core member 3.
A so as to penetrate A. Of course, the reactive hot melt resin 10 ′ is heated and softened at a curing heating temperature or lower by an electric heater of the connection liquid crystal deposition tank 41 and is deposited. As a result, the reactive hot melt resin 10 'is applied to the core member 3A shown in FIG. 8B. In this state, the thickness is uneven.

Therefore, when cooling and solidifying the reactive hot-melt resin 10 ′ which has been permeated and adhered to the core member 3 A, it is regulated to a predetermined thickness t by the blade 48 shown in FIG. w is regulated and shaped (see shaping means 45 in FIG. 4). In this example, the long-shaped adhesive sheet 32 with a core member after shaping is
It is wound up in a roll. At that time, a release sheet 24 such as oil paper or release paper is sandwiched between one surface of the adhesive sheet 32 with a core member. Thereby, the roll-shaped adhesive sheet 32 with a core member as shown in FIG. 4 is completed.

As described above, according to the method for manufacturing an adhesive sheet according to the second embodiment, the solidification at room temperature makes handling easy and easy. A roll-shaped adhesive sheet 32 that is softened by heating can be manufactured with good reproducibility.

Since the adhesive sheets 31 and 32 made of a reactive hot melt resin in the form of a sheet absorb moisture in the air and cure, the curing is prevented before proceeding with the laminating process. There is a need. The curing at this time is based on a branching / crosslinking reaction of the isocyanate group of the reactive hot melt resin. For this reason, it is preferable to perform the bonding process in a short time (for example, within 24 hours after the processing).
In order to avoid such time constraints, some storage method is required.

(4) Storage Device for Adhesive Sheet and Method for Preserving It FIG. 9 is a cross-sectional view showing an example of storing an adhesive sheet according to the first embodiment. In this example, a case where an adhesive sheet 31 without a core member in the form of a single sheet is stored will be described.
Note that the method of storing the single-sheet adhesive sheet 32 with a core member is the same, and a description thereof will be omitted.

In the present invention, the adhesive member laminated body 80 laminated with the release sheet 24 interposed between the adhesive sheets 31 is maintained and controlled so as not to be exposed to air, particularly to prevent moisture from entering the inside. . The adhesive sheet 31 is obtained by processing a reactive hot melt resin 10 ′ that solidifies at a normal temperature and softens under a heated condition to a predetermined thickness and size.

In this example, at least the release sheet 24
A seal member 25 for preventing moisture intrusion is applied to the bottom surface, and the left, right, front and rear side surfaces of the adhesive member laminate 80 that are not in contact with the release sheet 24 except for the top surface of the adhesive member laminate 80 provided with. Of course, the sealing member 25 may be provided on the top surface of the adhesive member laminate 80 to prevent moisture from entering. As the seal member 25, a wrap for food packaging which is made of polyethylene or the like into an extremely thin transparent film may be used. By wrapping the entire adhesive member laminate with the wrap, the wrap serves as a barrier to prevent the invasion of moisture (wrapping method using the wrap).

FIG. 10 is a sectional view showing an example of sealing the adhesive sheet 31. In this example, the adhesive sheet 31 is laminated, and is in contact with the release sheet 24 except for the portion exposed to the air, that is, the top surface of the adhesive member laminate 80 provided with the release sheet 24. Seal members 3 for preventing moisture from entering the left, right, front and rear sides of the adhesive member laminate 80
5 is sprayed. At this time, a solvent such as polyethylene is used for the seal member 35. By this spray, the spray-shaped seal member 35 is formed on the left, right, front and rear sides of the adhesive member laminated body 80, so that the seal member 35 serves as a barrier to prevent moisture from entering (spraying method by spray).

When this spraying method is employed, the release sheet 24 is applied to the bottom surface of the adhesive member laminate 80.
This is because if the seal member 35 is sprayed to the bottom surface of the adhesive member laminated body 80, the sheet-like seal member 35 may not be immediately peeled off by the spray during the bonding process depending on the material of the seal member 35. is there. Of course, the sheet-like sealing member 3 by spraying
The seal member 35 may be sprayed on the bottom surface of the adhesive member laminated body 80 if the adhesive member 5 can be immediately peeled off in the bonding step. When a method in which the seal member 35 is not formed at the bottom portion is adopted, it is preferable to provide a release sheet 24 such as oil paper or release paper at the bottom portion of the adhesive member laminate 80 to prevent moisture from entering.

FIG. 11 is a sectional view showing another example of the sealing of the adhesive sheet 31. In this example, the sealing member 75 is formed on the left, right, front and rear side surfaces of the adhesive member laminated body 80 by using a coating roller 86 instead of the spray. At this time, a solvent such as polyethylene is used for the seal member 75. For example, the seal member supply pipe 84 is attached near the roller 86, and the seal member 75 is automatically supplied to the surface of the roller 86. Of course, the roller 86 may be immersed in a container for storing a seal member (not shown), and then the roller 86 may be rolled on the left, right, front and rear side surfaces of the adhesive laminate 80 to apply the seal member 75.
The seal member 75 serves as a barrier to prevent moisture from entering (a coating method using a roller).

FIG. 12 is a sectional view showing an example of a storage device for the adhesive sheet 31 without a core member. The storage device for the adhesive sheet according to the present invention is a barrier bag 68 as a non-breathable seal.
Has formed. The barrier bag 68 is preferably gaseous, H ₂ O
It is preferable to use a material that does not easily pass through such a material and has a good light-shielding property. In this example, polyethylene or the like is formed in advance in the annular cylindrical body, and is formed by thermocompression-bonding the open portions at both ends when the adhesive member laminated body 80 is sealed.

In this example, an adhesive member laminate 80 sandwiching a release sheet 24 between sheet-like adhesive sheets is stored in a barrier bag 68, and an L-shaped pattern 67 is used as a protective member. The shape of the adhesive member laminate 80 is protected by the pattern 67. The L-shaped diagonal brace member 69 or a surface forming the brace member 69 is provided with a reinforcing wall (not shown), so that the pattern 67 is maintained at a substantially right angle. The initial shape of the adhesive member laminate 80 is maintained.

Then, the adhesive member laminate 80 protected by the L-shaped paper pattern 67 is housed in the barrier bag 68, and is then sealed and preserved by thermocompression-bonding both ends of the barrier bag 68. The inside of the barrier bag is preferably evacuated to insulate it from air. Further, an inert gas may be sealed in the barrier bag. In this case, a gas containing 80% or more of N ₂ or CO ₂ may be sealed in the barrier bag 68. Thereby, the invasion of moisture can be prevented, so that there is no time-dependent processing limitation after manufacturing the adhesive sheet 31 and the like.

Alternatively, a moisture absorbing means may be provided in the barrier bag. As the moisture absorbing means, a member containing a moisture absorbing agent such as silica gel is used, and the moisture absorbing agent is stuck inside the barrier bag. Thus, even if moisture invades, the moisture in the barrier bag can be absorbed by the moisture absorbent, so that there is no time-dependent processing limitation after the production of the adhesive sheet 31 and the like.

FIG. 13 is a sectional view showing a storage example of the adhesive sheet 31 without a roll-shaped core member as the second embodiment.

In this example, the release sheet 2 was placed between the adhesive sheets.
This is a case where the long sheet-shaped adhesive member laminated body 80 sandwiching 4 is wound and stored in a roll shape. The release sheet 24 is provided on one surface of the adhesive sheet 31. For this reason, the outer peripheral surface of the adhesive sheet 31 is exposed at the winding end portion of the adhesive sheet 31. Therefore, the adhesive sheet 3
The outer peripheral surface and both end surfaces of the circular plate 1 are exposed to air.
Therefore, in this example, seal members are provided on the outer peripheral surface and the circular end surfaces.

FIG. 14 is a partially broken perspective view showing an example of sealing the adhesive sheet 31 without a roll-shaped core member. In this example, a sealing member 85A is applied to one (front) circular end surface of the adhesive sheet 31, a sealing member 85B is applied to the other (back) circular end surface, and a sealing member 85 is applied to the outer peripheral surface.
C is given. At this time, the sealing members 85A to 85C are formed by a packaging method using a wrap, a spraying method using a spray, and a coating method using a roller. The seal member 85A prevents moisture from entering from one circular end surface, the seal member 85B prevents moisture from entering from the other circular end surface, and the seal member 85C prevents moisture from entering from the outer peripheral surface. Is done.

FIG. 15 is a perspective view showing a configuration example of a storage device of the adhesive sheet 31 without a roll-shaped core member. In this example, a roll-shaped adhesive member laminated body 80 sandwiching the release sheet 24 between the adhesive sheets is housed in a tubular sealed container 90 as a sealed body. In this example, the sealed container 90 has a bottomed cylindrical container 91 and a lid 92. The cylindrical container 91 and the lid 92 are formed by pressing a stainless member or the like. The inner diameter of the cylindrical container 91 is formed larger than the outer diameter of the roll-shaped adhesive member laminate 80, and the height thereof is also formed higher than the height of the roll-shaped adhesive member laminate 80.

Engagement screws (not shown) are formed on the outer peripheral surface of the open end of the cylindrical container 91 and the inner peripheral surface of the lid 92, respectively. Thereby, the lid 92 is tightly engaged with the cylindrical container 91 and is closed. The lid 92 has an exhaust port 9
3 is provided so that air inside the cylindrical container with the lid 92 closed can be exhausted. The exhaust port 93 is provided with a valve 94 so that the inside of the cylindrical container in which the lid 92 is closed can be maintained. Of course, an inert gas may be filled into the cylindrical container having the lid 92 closed through the exhaust port 93. In this case, a gas containing 80% or more of N ₂ or CO ₂ may be sealed in the barrier bag 68. Thus, the invasion of moisture can be prevented in the same manner as the barrier bag 68, so that there is no time-dependent processing limitation after manufacturing the adhesive sheet 31 and the like.

As described above, according to the storage device for the adhesive sheet and the method for storing the same according to the present embodiment, the adhesive sheets do not come into contact with air, the adhesive sheets do not adhere to each other, and more storage space is provided. Without occupation,
The adhesive member laminate 80 on which the adhesive sheet 31 and the like are laminated can be compactly stored in the barrier bag 68 or the sealed container 90. Therefore, since the adhesive member laminate 80 can be handled at the component level, the IC card and the I
In the step of bonding the D card or the like, the adhesive sheet 31 can be taken out of the barrier bag 68 or the sealed container 90 in order and the card or the like can be smoothly bonded.

(5) Example of Forming Electronic Card Using Adhesive Member Laminate 80 FIG. 16 is a perspective view showing a configuration example of an electronic card manufacturing apparatus 104 to which the adhesive member laminate 80 is applied. The electronic card manufacturing device 104 includes a long sheet-shaped back sheet 1,
The electronic card 100 is manufactured by enclosing the electronic component 4 with the long sheet-shaped top sheet 5 and then cutting and punching the card assembly.

In FIG. 16, the electronic card manufacturing apparatus 10
A back sheet supply unit 6 is provided on 4, and a long sheet-shaped (web-shaped) back sheet 1 is wound around a delivery shaft 6A. Here, the long sheet form means that at least one or more electronic cards are punched out, for example, a form in which image display information such as "XXX employee ID", "name", and "issue date" are continuously formed. Say. As the long sheet-like form, it is assumed that image display information is arranged in n rows in the width direction and m pieces in the longitudinal direction.

An adhesive sheet supply unit 14 is provided above the back sheet supply unit 6. The roll-shaped adhesive member laminate 80 described above is set in the adhesive sheet supply unit 14, and the first adhesive sheet 10 </ b> A is supplied onto the back sheet 1 by the back sheet supply unit 6. The adhesive sheet supply unit 14 has a feed shaft 14A, and the adhesive sheet 10A is wound around the feed shaft 14A, and the adhesive sheet 10A is attached to the feed shaft 14A.
It is made to pay out from.

Since both surfaces of the adhesive sheet 10A are adhesive surfaces, the adhesive surface is protected by the release sheet 24A. This release sheet 24A is used for bonding the adhesive sheet 1
The paper is peeled off from 0A and becomes scum paper. Adhesive sheet supply unit 1
An unillustrated static elimination brush is provided on the downstream side of 4, so that the charge that has been peeled and charged when the roll-shaped adhesive sheet 10A is spread is released to the ground before coming into contact with the IC chip. This static elimination processing can prevent electrostatic breakdown of the IC chip.

A component conveying belt 22 is provided above the adhesive sheet supply unit 14.
The electronic component 4 for a card is automatically supplied onto the adhesive sheet 10A. The component transport belt 22 is driven based on, for example, a component transport control signal S4B. Parts conveyor belt 22
A component cassette 21 is provided on the upstream side of the
Electronic components 4 divided into two groups are stored in a stacked manner. At the bottom of the component cassette 21, for example, three movable lids (not shown) are provided side by side in the transport direction.
The three lids are opened at the same time based on the drop permission signal S4A, and the electronic components 4 are simultaneously dropped on the component transport belt 22.

An adhesive sheet supply section 15 is provided above the component conveying belt 22. The above-mentioned roll-shaped adhesive member laminate 80 is set in the adhesive sheet supply section 15, and the second part is placed on the electronic component 4 by the component transport belt 22.
Is supplied. Adhesive sheet supply unit 1
5 has a delivery shaft 15A, an adhesive sheet 10B is wound around the delivery shaft 15A, and the adhesive sheet 10B is attached to the delivery shaft 1A.
It is made to feed out from 5A.

Since both sides of the adhesive sheet 10B are also adhesive surfaces, the adhesive surface is protected by the release sheet 24B. The release sheet 24B is used for bonding the adhesive sheet 1 at the time of bonding.
The paper is peeled off from 0B and becomes scum paper. Adhesive sheet supply unit 1
A discharging brush 45 is also provided on the downstream side of 5, so that the separated and charged electric charge is released to the ground. As described above, the electrostatic discharge of the IC chip can be prevented by this static elimination process.

As the above-mentioned adhesive sheets 10A and 10B, thin sheets of the above-mentioned reactive hot melt resin 10 'are used in advance. A top sheet supply section 9 is provided above the adhesive sheet supply section 15, and the top sheet 5 is supplied onto the adhesive sheet 10B. The top sheet supply unit 9 has a delivery shaft 9A, around which the top sheet 5 is wound, and the top sheet 5 is fed out from the delivery shaft 9A. On the top sheet 5, image display information such as "employee ID", "name", and "date of issue" are arranged in three columns in the width direction, and the image display information is printed continuously in the transport direction. You.

Driven rollers 19B and 19C are provided on the downstream side of the back sheet supply section 6, and driven rollers 19A are provided on the downstream side of the top sheet supply section 9, and the transport direction of the back sheet 1 and the top sheet 5 and the like is provided. Has been made changeable. A drive roller 16 for guiding and positioning is provided downstream of the five back sheet supply units 6, the adhesive sheet supply unit 14, the component conveying belt 22, the adhesive sheet supply unit 15, and the top sheet supply unit 9.

In this example, a positioning device 23 is provided on a region connecting the driven roller 19B and the driving roller 16 in the horizontal direction.
Is provided, and the electronic component 4 transported by the component transport belt 22 is disposed at a predetermined position on the adhesive sheet 10A. The positioning device 23 is a rectangular 3 parallel to the transport direction.
When the electronic component 4 having the two openings 23A and being conveyed by the component conveying belt 22 is dropped into the opening 23A, the electronic components 4 are arranged in three rows on the adhesive sheet 10A. Is made.

The drive roller 16 has a long sheet-shaped back sheet 1, an electronic component 4, and a long sheet-shaped front face based on a pre-printed alignment mark p 0 (shown in FIGS. 20 and 23). The sheet 5 is aligned and guided in the direction of the vacuum heat press 17. This drive roller 16
A vacuum heat press is provided on the downstream side, and the back sheet 1 and one surface of the electronic component 4 are bonded by the adhesive sheet 10A, and the other surface of the electronic component 4 and the top sheet 5 are bonded by the adhesive sheet 10B. Are pasted together.

This vacuum heat press device 17 is a flat type upper and lower press portion 17 which is disposed to face the upper and lower sides of the transport path.
A, 17B, and a long sheet-like surface sheet 5
A predetermined pressure is applied from above and below the long sheet-shaped back sheet 1. For this purpose, the upper and lower press sections 17A and 17B can be moved in a direction in which they are separated from each other. In this example, the electronic component 4 enclosed between the back sheet 1 and the top sheet 5 with the adhesive sheets 10A and 10B interposed therebetween is hereinafter referred to as a card assembly 20.

The upper and lower press sections 17A, 17B
Inside, an electric heater (not shown) 18 is provided to heat the card assembly 20 to a predetermined temperature (see FIG. 17 for the electric heater 18). In this example, the heating temperature is about 40 ° C. to 120 ° C., and the heating time is 10 seconds to 12 seconds, depending on the type of the adhesive sheets 10A and 10B.
It is about 0 seconds. The adhesive sheets 10A and 10B melt when heated, and solidify when cooled.
The device for heating and bonding the card assembly 20 is not limited to the vacuum hot press device 17, but may be a normal hot press or a heat roller device.

A card sheet conveying belt 30 is provided on the downstream side of the vacuum hot pressing device 17, and the card assembly 20 heated and bonded by the vacuum hot pressing device 17 is transferred in a predetermined conveying direction, in this example, a cutting device. It is conveyed to 40.
At this time, the moving distance of the card sheet conveying belt 30 is equal to the length L1 of the vacuum heat press device 17 in the conveying direction. A cutting device 40 is provided downstream of the card sheet transport belt 30.
Is provided, and the card assembly 20 is cut for each unit (for example, 3 rows × 2). As the cutting device 40, a vertical push-type cutter or a rotary cutter is used.

Next, a control method of the electronic card manufacturing apparatus 104 will be described with reference to FIG. FIG.
7 is a block diagram showing an outline of an example of a control system of the electronic card manufacturing apparatus 104.

In this example, a control device 70 for controlling the entire electronic card manufacturing device 104 is provided. In order to drop the electronic component 4 onto the adhesive sheet 10A at a predetermined timing, a drop permit signal S4A is sent to the component cassette 21. Then, the component transport control signal S4B is output to the component transport belt 22.

Further, the control device 70 controls the alignment mark p0 (FIG. 20, FIG. 23) formed on the card assembly 20 in advance.
And the like, and the card sheet transport belt 30 is controlled based on the detection. In this control system, a delivery detection sensor 71 is provided on the vacuum heat press device 17 side, and the alignment mark p0 of the card assembly 20 is detected at the card delivery position p1. The sensor 71 outputs a card sending position detection signal S1. An arrival detection sensor 72 is provided on the cutting device 40 side, and the alignment mark p0 of the card assembly 20 is detected at the card arrival position p2. The sensor 72 outputs a card arrival detection signal S2.

The output stages of these sensors 71 and 72 include:
The control device 70 is connected, and the card sheet transport belt 30 is controlled based on the two detection signals S1 and S2. For example, the control device 70 controls the card sheet transport belt 30 to operate intermittently between the card delivery position p1 and the card arrival position p2. If the topsheet 5 is a long sheet and non-stretchable, only one of the sensors 71 and 72 can be used.

In this example, in order to form the electronic card 100, on the other hand, the driven roller 1
9B, 19C and the back sheet 1 on the drive roller 16.
From the adhesive sheet supply unit 14 and the driven roller 19
B, the adhesive sheet 10A is fed to the drive roller 16, the electronic component 4 is supplied from the component conveying belt 22 onto the adhesive sheet 10A, and the adhesive sheet 10B is fed from the adhesive sheet supply unit 15 to the drive roller 16, The top sheet 5 is fed from the supply unit 9 to the drive roller 16 via the driven roller 19A.

Thereafter, the control device 70 sends the driving roller 16
When the drive control signal S3 is output, the drive roller 16 rotates. Then, an adhesive sheet 10A is provided between the long sheet-shaped back sheet 1 and the long sheet-shaped top sheet 5,
Card assembly 2 enclosing electronic component 4 with 10B interposed
0 is guided to the vacuum heat press device 17 by the drive roller 16. The control device 70 outputs a heating bonding control signal S5 to the vacuum heat press device 17.

In this vacuum hot press apparatus 17, the temperature and press pressure of the upper press section 17A and the lower press section 17B are controlled to be constant. The leading end of the first card assembly 20 is made to protrude from the vacuum heat press device 17. When the first heat bonding is completed, an end signal S6 is output from the vacuum heat press device 17 to the control device 70. This tip is detected by the sensor 71. The card sending position detection signal S1 by the sensor 71 is obtained by detecting the alignment mark p1.

A belt transport control signal S7 is output to the card sheet transport belt 30 from the controller 70 which has received the card sending position detection signal S1. The card sheet transport belt 30 starts to move with the card assembly 20 placed thereon by the belt transport control signal S7, and the card assembly 20 after the first heat bonding is transported from the vacuum heat press device 17 to the cutting device 40. You. At this time, the drive rollers 16 also cooperate to move the card assembly 20 downstream. At this stage, the card assembly 20 has not been cut.

When the first card assembly 20 is transported from the vacuum hot press device 17 to the cutting device 40, the sensor 72
Thus, the arrival of the card assembly 20 is detected. The sensor 72 outputs a card delivery arrival detection signal S2 to the control device 70. The controller 70 that has received the card delivery arrival detection signal S2 outputs the belt transport control signal S7 to the card sheet transport belt 30, so that the card sheet transport belt 30 stops. Although not shown, a fan is provided on the downstream side of the vacuum hot press device 17, and the card assembly 20 discharged from the vacuum hot press device 17 is cooled by the wind from the fan until the card assembly 20 is cut.

On the other hand, in the component cassette 21, the electronic component 4 is dropped on the component transport belt 22 at a predetermined timing based on the drop permission signal S4A, and the component transport control signal S4B
, The component transport belt 22 is driven. Thereby, the electronic component 4 is supplied onto the adhesive sheet 10A with good timing. In the vacuum heat press device 17, the second heat bonding is performed. When the second heat bonding is completed, the vacuum heat press device 17 outputs an end signal S6 to the control device 70.

Thereafter, a belt transport control signal S7 is output to the card sheet transport belt 30 from the control device 70 which has received the card sending position detection signal S1 from the sensor 71. The card sheet transport belt 30 starts moving the card assembly 20 by the belt transport control signal S7,
The card assembly 20 after the second heat bonding is conveyed from the vacuum hot press device 17 to the cutting device 40.

At this time, the drive roller 16 also moves the card assembly 20 to the downstream side in cooperation. At this stage, the card assembly 20 can be cut. Therefore, when the second card assembly 20 is transported from the vacuum heat press device 17 to the cutting device 40, the sensor 72 detects that the card assembly 20 has arrived. A card arrival detection signal S2 is output from the sensor 72 to the control device 70.
The control device 70 that has received the card arrival detection signal S2 outputs the belt conveyance control signal S7 to the card sheet conveyance belt 30, so that the card sheet conveyance belt 30 stops.

At the same time, a cutting control signal S 8 is output to the cutting device 40. In the cutting device 40 that has received the cutting control signal S8, the card assembly 20 is cut into one unit of electronic card sheet. Similar operations are repeated for the third and subsequent times. Thereby, the long sheet-shaped card assembly 2
From zero, a plurality of electronic card sheets can be obtained. The electronic card sheet is naturally dried for about 3 to 6 days, and after the adhesive sheets 10A and 10B are completely cured, the electronic cards 100 are punched one by one.

As described above, according to the electronic card manufacturing apparatus 104, the back sheet 1 and one surface of the electronic component 4 are interposed with the adhesive sheet 10A in a state where heat is applied by the vacuum hot press apparatus 17. And the other surface of the electronic component 4 and the topsheet 5 are bonded to each other with an adhesive sheet 10B.
Are bonded together.

Therefore, without performing the feedback control of the application amount of the adhesive member and the like, the pressing force by the vacuum hot pressing device 17 and the deformation of the adhesive sheets 10A and 10B due to the heat melting, the one surface of the electronic component 4 and the surface sheet 5
And the thickness of the adhesive layer between the other surface of the electronic component 4 and the back sheet 1 can be made uniform. Thereby, the electronic component 4 is formed by the top sheet 5 and the back sheet 1.
Can be sandwiched between the adhesive sheets 10A and 10B having a uniform thickness after heat melting, so that the card has almost no irregularities, the card thickness is small, and a flat non-contact IC is used.
Cards can be manufactured.

Subsequently, referring to FIGS. 18 to 23,
A method for manufacturing the electronic card 100 according to the embodiment will be described. 18A to 18C are cross-sectional views of an example of a forming step (part 1) showing a method of manufacturing the electronic card 100 as an example, and FIGS. 19A and 19B are cross-sectional views of an example of the forming step (part 2). FIG. 20 to FIG. 23 are top views showing the sheet-like members that complement it.

In this example, the back sheet 1 in the form of a long sheet is used.
A case will be described in which a card assembly 20 is formed in which the electronic component 4 is bonded to the long sheet-shaped top sheet 5 with the adhesive sheets 10A and 10B interposed therebetween. Back sheet 1
Is wound around the feed shaft 6A of the back sheet supply unit 6 shown in FIG.
Is wound around the sending shaft 14A. The electronic components 4 are stored in the component cassette 21 in advance. Further, the adhesive sheet 10
B is wound around a delivery shaft 15A of the adhesive sheet supply unit 15, and the topsheet 5 is wound around a delivery shaft 9A of the topsheet supply unit 9. It is assumed that these members are prepared.

First, in FIG. 18A, the adhesive sheet 10A fed from the adhesive sheet supply unit 14 is bonded onto the back sheet 1 fed from the back sheet supply unit 6. A reactive hot melt resin is used as the adhesive sheet 10A. In this example, the softening point of the reactive hot melt resin is 95 ° C. or higher.

In this case, the softening point is set to 95 ° C. or higher because an employee card, an employee card, a member card, a student card, an alien registration card, various driver's licenses, etc. are placed in a parked car under the sunshine. This is because it is empirically found that the vehicle interior temperature reaches 90 ° C.

The back sheet 1 has a writing layer 12 shown in FIG. 20, which can be written with a pen. An alignment mark p0 is also printed on the end of the back sheet 1 in advance. The alignment mark p0 is formed for each one or a plurality of card areas. Alignment mark p0
May be a black line or block having a low reflectance that can be detected by an optical sensor, but may be a magnetic mark, a slit or a hole.

Thereafter, the adhesive sheet 10A shown in FIG.
The electronic component 4 is arranged thereon. This electronic component 4 has an IC chip 4A and an antenna 4B shown in FIG.
It is automatically supplied onto the adhesive sheet 10A via the component conveying belt 22 and the positioning tool 23. The electronic component 4 is stocked in a component cassette 21 shown in FIG. 22, and the electronic component 4 is arranged on the adhesive sheet 10A via the component conveying belt 22 and the positioning tool 23. The electronic components 4 may be stored in the component cassette 21 in a state where the electronic components 4 are stored in the single-sheet sheet storage chip 3 in advance. The electronic component 4 housed in the chip housing sheet 3 can be arranged on the adhesive sheet 10A. The chip storage sheet 3 is made of a woven or nonwoven resin sheet. The electronic component 4 houses an IC chip 4A and an antenna 4B, and includes a chip capacitor and the like.

After forming the electronic component 4 on the adhesive sheet 10A, the adhesive sheet 10B is attached on the electronic component 4 in FIG. 18C. As the adhesive sheet 10B, a sheet in which a reactive hot melt resin is formed in a thin sheet shape in advance is used.

Thereafter, in FIG. 19A, the adhesive sheet 1
A long sheet-like top sheet 5 drawn out from the top sheet supply unit 9 is formed on the entire surface on 0B. The electronic card 1 is placed in a predetermined printing area shown in FIG.
The image display information for the 00 user is printed.
In this example, the top sheet 5 shown in FIG. 23 has a long sheet shape on which image display information is continuously printed in the transport direction. An alignment mark p0 is printed on the end of the topsheet 5 in advance. In this example, on the long sheet-shaped top sheet 5, image display information such as "XXX employee ID", "name", and "issue date" are arranged in three columns in the width direction.
The image display information is printed continuously in the transport direction.

When the long sheet-like top sheet 5 is formed on the adhesive sheet 10B, a foamable urethane sheet (not shown) may be formed in the inner area of the antenna 4B. With this urethane sheet, the topsheet 5 can be further flattened, and the image forming condition of the image receiving layer 54 can be improved.

Thereafter, the card assembly 20 is heated in the same manner as in the conventional method, and a pressing process is performed from the top sheet 5 side and the back sheet 1 side shown in FIG. 19B. The bonding conditions at this time are a heating temperature of about 60 ° C. and a heating time of about 30 seconds. The pressure is about 5 kg / cm ² . At this time, the upper press section 17A and the lower press section 1 shown in FIG.
The temperature and press pressure of 7B are controlled to be constant by the controller 70. Thus, the long sheet-shaped card assembly 20 is completed.

In this example, the card assembly 20 is cut to form one unit of an electronic card sheet. For example, the card assembly 20 is cut into two or more pieces based on the alignment mark p0 formed outside the image display area of the card assembly 20. After that, after the electronic card sheet is completely cured, the electronic cards 1 are placed one by one by a punching device or the like.
00 is punched out. Reactive hot melt resin 1 described above
0 'is mainly composed of a urethane polymer having an isocyanate group at a molecular terminal. The water that has entered from the card edge portion is required for the isocyanate group to undergo a branching / crosslinking reaction during the chain extension reaction of the urethane prepolymer. The water at that time is filled by the humidity in the atmosphere or the inside of the card.

Thus, the electronic card 10 according to the embodiment is
According to the manufacturing method of No. 0, the adhesive sheet 1 in which the reactive hot melt resin 10 ′ is formed into a thin sheet is formed on the surface of the electronic component 4.
0A, and a thin sheet-like adhesive sheet 10B is similarly formed on the back surface thereof.
A and 10B are heated to form the top sheet 5 on the front surface of the electronic component 4 and the back sheet 1 is formed on the back surface of the electronic component 4.

Accordingly, the adhesive sheets 10A and 10B formed by the heat melting and pressurization are perfectly integrated in the portion where the electronic component 4 is not provided, and between the surface of the electronic component 4 and the top sheet 5 and the back surface of the electronic component 4 The thickness of the adhesive layer between the back sheet 1 and the back sheet 1 can be made uniform. As a result, the electronic component 4 can be sandwiched between the adhesive sheets 10A and 10B having a uniform thickness by the top sheet 5 and the back sheet 1, so that there are almost no irregularities, the card thickness is thin, and a flat non-contact type. IC cards and the like can be manufactured.

[0121]

As described above, according to the adhesive sheet of the present invention, the reactive hot-melt resin processed to a predetermined thickness and size is solidified at room temperature.
When creating a C card, an ID card, or the like, it can be handled easily and easily.

According to the first apparatus for producing an adhesive sheet of the present invention, there is provided a shaping means for shaping a reactive hot melt resin heated and softened at a curing heating temperature or lower to a predetermined thickness and width. .

With this configuration, it is possible to manufacture an adhesive sheet which is easy and easy to handle by solidifying it at room temperature and is softened by heating in the bonding step of an IC card, an ID card, etc., with good reproducibility.

According to the second apparatus for manufacturing an adhesive sheet of the present invention, a shaping mold having a concave portion having a predetermined depth and a predetermined width is formed by:
Injection means for injecting a reactive hot melt resin heated and softened at a curing heating temperature or lower is provided.

With this configuration, an adhesive sheet made of a reactive hot melt resin shaped to a predetermined thickness and width can be manufactured with good reproducibility. In addition, it is easy and easy to handle by solidifying at room temperature, and IC
It is possible to provide an adhesive sheet having a property of being softened by heating in a bonding step of a card, an ID card, and the like.

According to the method for producing an adhesive sheet of the present invention,
After the reactive hot melt resin is heated and softened at a curing heating temperature or lower, it is shaped into a predetermined thickness and width.

With this configuration, it is possible to manufacture an adhesive sheet having a property of being solidified at room temperature and easy to handle due to solidification at room temperature, and being softened by heating in the bonding process of IC cards and ID cards with good reproducibility. it can.

According to the method for storing an adhesive sheet of the present invention,
When storing an adhesive sheet obtained by processing a reactive hot melt resin into a predetermined thickness and size, the adhesive sheet is laminated with a releasable member interposed between the adhesive sheets.

With this configuration, it is possible to reduce the size of the adhesive member in which the adhesive sheets are stacked without the adhesive sheets being bonded to each other and occupying a large storage space. Therefore, the adhesive member can be handled at the component level.

According to the storage device for an adhesive sheet of the present invention, a non-breathable sealing body for accommodating an adhesive member laminate obtained by sandwiching a releasable member between reactive hot melt resin adhesive sheets. Is provided.

With this configuration, the adhesive sheets do not come into contact with the air, and the adhesive sheets do not adhere to each other.
Moreover, the adhesive member in which the adhesive sheets are laminated can be compactly stored in the sealed body without occupying a large storage space. Therefore, since the adhesive member can be handled at the component level, the adhesive sheets can be sequentially taken out of the sealing body and the cards and the like can be smoothly bonded in the bonding process of the IC card and the ID card.

The present invention relates to an adhesive member used for an ID card and an IC card such as a cash card, an employee ID card with a face photograph, an employee ID card, a member ID card, a student ID card, an alien registration ID and various driving licenses. It is very suitable for application to production storage.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a configuration example of an adhesive sheet 10 as an embodiment of the present invention.

FIG. 2 is a diagram illustrating a configuration example (cross section) of an adhesive sheet with release paper 31 as one example.

FIG. 3 is a diagram illustrating a configuration example (cross section) of a core member-attached adhesive sheet 32, 32 ′, 32 ″ as another example of the adhesive sheet 10.

FIG. 4 is an adhesive sheet manufacturing apparatus 1 according to the present embodiment.
FIG. 2 is a block diagram showing an example of the configuration of FIG.

FIG. 5 is a block diagram illustrating a configuration example of another manufacturing apparatus 102 for an adhesive sheet.

FIG. 6 is a block diagram illustrating a configuration example of another manufacturing apparatus 103 of the adhesive sheet.

FIGS. 7A to 7C are cross-sectional views illustrating an example of a forming process of an adhesive sheet (single-sheet type) 31 and a release sheet 24 thereof as the first embodiment.

8A to 8D are adhesive sheets 3 according to a second embodiment.
FIG. 4 is a cross-sectional view illustrating an example of a forming step of No. 2;

FIG. 9 is a cross-sectional view showing a storage example of the single-sheet adhesive sheet 31 without a core member as the first embodiment.

FIG. 10 is a cross-sectional view showing an example of sealing the adhesive member laminate 80.

FIG. 11 is a cross-sectional view showing another example of sealing the adhesive member laminate 80.

FIG. 12 is a cross-sectional view showing a configuration example of a storage device of the adhesive member laminate 80 as an example.

FIG. 13 is a perspective view showing a storage example of a roll-shaped adhesive sheet 31 without a core member as a second embodiment.

FIG. 14 shows an adhesive sheet 31 without a roll-shaped core member.
It is a perspective view of the partial crushing which shows the example of sealing of.

FIG. 15 is a perspective view showing a configuration example of a storage device of the adhesive sheet 31 without a roll-shaped core member as an example thereof.

FIG. 16 is an electronic card manufacturing apparatus 104 used in the embodiment.
It is a perspective view which shows the example of a structure of.

FIG. 17 is a block diagram illustrating an example of a control system of the electronic card manufacturing apparatus 104.

18A to 18C show an electronic card 100 as an embodiment.
It is sectional drawing which shows the example of the formation process of the manufacturing method (the 1).

19A and 19B show an electronic card 100 as an embodiment.
It is sectional drawing which shows the example of the formation process of the manufacturing method of (No. 2).

FIG. 20 is a top view showing a printing example of the back sheet 1;

FIG. 21 is a top view (part 1) illustrating an example of supplying the electronic component 4;

FIG. 22 is a top view (part 2) illustrating a supply example of the electronic component 4;

FIG. 23 is a top view showing a printing example of the top sheet 5.

[Explanation of symbols]

 3A core member 10, 10A, 10B adhesive sheet 10 'reactive hot melt resin 25, 35, 75 sealing member 31 adhesive sheet without core member 32 adhesive sheet with core member 36, 76 release paper supply unit (for release member 41, 81 Core member supply unit (Core member supply unit) 42 Adhesive liquid deposition tank (Processing unit) 45 Shaping unit 46 Cooling fan (Cooling unit) 48 Blade (Shaping unit) 49 Guide unit (Shaping) Means) 57 Rewinding part 58 Cutter (cutting means) 61 Shaping mold 62 Injecting means 67 L-shaped pattern 68 Barrier bag (storage tool) 80 Adhesive member laminated body 90 Sealed container (sealed body) 100 Electronic card 101 to 103 Adhesion Sheet manufacturing equipment 104 Electronic card manufacturing equipment

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 4J004 AA05 AA07 AA09 AA15 AB03 AB05 CB01 CB04 CC02 DB02 EA01 EA04 FA01 GA01 GA02 4L032 AB04 AB07 BA09 BD01 BD03 DA00

Claims (30)

[Claims] An adhesive sheet formed by processing a reactive hot melt resin before curing, which solidifies in a normal temperature state and softens in a heating state below a curing heating temperature to a predetermined thickness and size. 2. A processing means for heating and softening the reactive hot melt resin at a temperature not higher than the curing heating temperature, and a shaping means for shaping the reactive hot melt resin heated and softened by the processing means to a predetermined thickness and width. An apparatus for manufacturing an adhesive sheet, comprising: 3. The apparatus for producing an adhesive sheet according to claim 2, further comprising a supply means for a core member for supplying a core member for allowing the reactive hot melt resin to penetrate and hold. 4. The method according to claim 3, wherein a porous foamed resin sheet, a porous flexible resin sheet, a porous resin sheet, or a nonwoven fabric sheet is used for the core member. An apparatus for manufacturing the adhesive sheet according to the above. 5. An adhesive sheet obtained by shaping the reactive hot melt resin into a predetermined thickness and width, wherein a cutting means for cutting the adhesive sheet is provided. 3. The apparatus for manufacturing an adhesive sheet according to claim 1. 6. A shaping mold having a concave portion having a predetermined depth and width, and an injection means for heating and softening the reactive hot melt resin into the shaping mold at a curing heating temperature or lower and injecting the same. An apparatus for manufacturing an adhesive sheet, comprising: 7. The apparatus for manufacturing an adhesive sheet according to claim 6, wherein a supply means for a core member for supplying a core member for holding the reactive hot melt resin is provided. 8. The core member according to claim 7, wherein a porous foamable resin sheet, a porous flexible resin sheet, a porous resin sheet or a nonwoven fabric sheet is used. An apparatus for manufacturing the adhesive sheet according to the above. 9. An adhesive sheet formed by shaping the reactive hot melt resin heated and softened at the curing heating temperature or lower to a predetermined thickness and width, wherein the heating and the heating are performed at the curing heating temperature or lower. The apparatus for manufacturing an adhesive sheet according to any one of claims 2 to 8, further comprising cooling means for cooling the softened reactive hot melt resin. 10. A release member for supplying a release member to one surface of the adhesive sheet, wherein the adhesive sheet is formed by shaping the reactive hot melt resin into a predetermined thickness and width. The apparatus for producing an adhesive sheet according to any one of claims 2 to 9, wherein a supply means for the adhesive sheet is provided. 11. A step of heating and softening the reactive hot melt resin at a curing heating temperature or lower, and a step of shaping the heated and softened reactive hot melt resin into a predetermined thickness and width. Method of manufacturing an adhesive sheet. 12. The method for producing an adhesive sheet according to claim 11, further comprising a step of impregnating at least a part of the reactive hot melt resin into a porous core member. 13. A porous core member comprising a porous foamed resin sheet, a porous flexible resin sheet, a porous resin sheet, or a non-woven fabric sheet. Item 13. The method for producing an adhesive sheet according to Item 12. 14. The method according to claim 11, wherein the heating temperature of the reactive hot melt resin is controlled at 110 ° C. to 160 ° C. 15. The method for manufacturing an adhesive sheet according to claim 11, wherein a release member is formed on one surface of the adhesive sheet. 16. The method for manufacturing an adhesive sheet according to claim 11, wherein the adhesive sheet is formed in a long sheet shape. 17. The method according to claim 11, wherein the adhesive sheet is formed into a single sheet. 18. A method for storing an adhesive sheet obtained by processing a reactive hot melt resin into a predetermined thickness and size, which solidifies in a normal temperature state and softens in a heating state equal to or lower than a curing heating temperature, between the adhesive sheets. A method for storing an adhesive sheet, comprising laminating a releasable member therebetween. 19. The method for storing an adhesive sheet according to claim 18, wherein the adhesive sheet is laminated, and a sealing member for preventing moisture intrusion is applied to a portion exposed to air. 20. A sheet-like adhesive member laminate in which a release member is sandwiched between the adhesive sheets, wherein the adhesive member laminate is not in contact with the release member. 19. A sealing member for preventing moisture intrusion is formed on the surface and the end surface of the adhesive sheet, and the sheet-like adhesive member laminate formed with the sealing member is housed in a sealing body. Method. 21. A long sheet-shaped adhesive member laminate in which a release member is interposed between the adhesive sheets, wherein the adhesive member laminate is wound and a roll-shaped adhesive member is provided. Forming a laminate, forming a seal member for preventing moisture intrusion on an outer peripheral surface and an end surface of the roll-shaped adhesive member laminate, and storing the roll-shaped adhesive member laminate formed with the seal member in a sealed container; 19. The method for storing an adhesive sheet according to claim 18, wherein: 22. The method according to claim 20, wherein the adhesive member laminate is housed in a sealed body and a sealed container, and the inside of the sealed body and the sealed container is evacuated. How to save the adhesive sheet. 23. The method according to claim 20, wherein the adhesive member laminate is housed in a sealed body and a sealed container, wherein an inert gas is sealed in the sealed body and the sealed container. 21. The method for storing an adhesive sheet according to 21. 24. The method according to claim 20, wherein the adhesive member laminate is housed in a sealed body and a sealed container, wherein a moisture absorbing means is provided in the sealed body and the sealed container. The storage method of the adhesive sheet described in the above. 25. A reactive hot melt resin which solidifies in a normal temperature state and softens in a heating state lower than a curing heating temperature is laminated with a releasable member between adhesive sheets processed into a predetermined thickness and size. A tool for storing an adhesive member laminate, comprising: a non-breathable sealing member for accommodating the adhesive member laminate. 26. A case in which the adhesive sheet is laminated with a releasable member interposed therebetween, wherein moisture is prevented from entering the surface and the end surface of the adhesive member laminate not in contact with the releasable member. The storage device for an adhesive sheet according to claim 25, wherein a seal member is provided. 27. A sheet-like adhesive member laminated body having a release member sandwiched between the adhesive sheets, which is stored in the sealing body, wherein the shape of the adhesive member laminated body is protected. The storage device for an adhesive sheet according to claim 25, further comprising a protection member. 28. A case where a roll-shaped adhesive member laminated body having a release member sandwiched between the adhesive sheets is accommodated in the sealing body, wherein the sealing body is the roll-shaped adhesive member laminated body. 26. The storage device for an adhesive sheet according to claim 25, wherein the storage device comprises a cylindrical sealed container for storing a body. 29. The storage device for an adhesive sheet according to claim 25, wherein the adhesive member laminate is housed in a seal, and the seal is evacuated. 30. The adhesive sheet according to claim 25, wherein the adhesive member laminate is housed in a sealed body, wherein an inert gas is sealed in the sealed body and the sealed container. Storage tools.