JPH07108783A - Bookbinding method and bookbinding file - Google Patents

Abstract

PURPOSE:To obtain a bookbinding method and a bookbinding file in which an adhesive and an object to be bookbound can be uniformly bonded to each other irrespective of the thickness of the object to be bookbound. CONSTITUTION:A metal foil 8 formed by laminating a thermoplastic adhesive 7 on at least one part thereof is mounted on a spine 4 of a cover base material 5 consisting of a cover 2a, a back cover 2b, and the spine 4. An object to be bookbound A is abutted against the thermoplastic adhesive 7. The metal foil 8 is formed into a U or L shape by folding the remaining part of the metal foil 8 in accordance with the thickness of the object to be bookbound A. Thereafter, the metal foil 8 is self-heated by electromagnetic induction heating to activate the thermoplastic adhesive to bond the object to be bookbound A.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bookbinding method and a bookbinding file. More specifically, for example, a bookbinding material such as paper or documents is bonded with an adhesive such as a hot-melt adhesive or an adhesive. The present invention relates to a bookbinding method and a bookbinding file that can be bound by binding.

[0002]

2. Description of the Related Art As a conventional bookbinding file of this type, a back cover coated with a hot melt adhesive is known. The binding method for binding this file is to activate (melt) the hot melt adhesive using a heater as a heat source.
Although a method of adhering the bookbinding product by doing so is known, this method has a drawback that it takes time to raise the temperature of the hot melt adhesive because the bookbinding product inhibits heat transfer from the heater.

In order to solve this problem, a heating method using an electromagnetic induction heating device has been developed (Japanese Patent Laid-Open Nos. 4-5090, 4-5092, and 4-2).
32791 publication). According to this electromagnetic induction heating method, a heat generating member made of a magnetic material is laminated or mixed in a hot melt adhesive attached to the back of a cover substrate, and the heat generating element is heated in a short time by an alternating magnetic field of electromagnetic induction. At the same time, there is an advantage that the hot-melt adhesive can be melted and the cover substrate and the article to be bound can be fused and then solidified for bookbinding.

[0004]

However, in the conventional bookbinding file of this type, it is necessary to prepare several kinds of file sizes and hot melt adhesive widths in consideration of the thickness of the bookbinding object. Therefore, there are problems that the number of manufacturing steps increases, the manufacturing cost increases accordingly, and the widths of the article to be processed and the hot melt adhesive do not match.

Further, it is possible to reduce the width of the hot-melt adhesive as a countermeasure when the thickness of the article to be manufactured is thin. However, if the width of the heating element is reduced according to the width of the hot-melt adhesive, it is absolutely necessary. There is a problem in that the amount of heat required is reduced, uniform heating becomes difficult, and the bookbinding operation cannot be performed in a short time.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a bookbinding method and a bookbinding file capable of uniformly bonding an adhesive and a bookbinding object regardless of the thickness of the bookbinding object. It is what

[0007]

In order to achieve the above object, the first bookbinding method of the present invention comprises a cover substrate having a cover portion and a portion which can be a back portion, and a back portion of the cover substrate. And a metal foil having a thermoplastic adhesive at least partially attached to the inside of the movable portion, and the thermoplastic adhesive is activated by heat generation of the metal foil heated by electromagnetic induction heating means for bookbinding. After the bookbinding method is premised, the article to be bound is brought into contact with the thermoplastic adhesive, and the excess portion of the metal foil is bent according to the thickness of the article to be bound to form a concave shape or an L shape. The above-mentioned thermoplastic adhesive is activated for bookbinding.

In the second bookbinding method of the present invention, as in the first bookbinding method, a cover sheet base material having a cover sheet portion and a portion which can be a back portion, and a portion which can be a back portion of the cover sheet substrate. And a metal foil having a thermoplastic adhesive on at least a part of which is attached to the inside of the metal foil, and the thermoplastic adhesive is activated by heat generation of the metal foil heated by electromagnetic induction heating means to perform bookbinding. Based on the above, the bookbinding product and the end piece are brought into contact with the thermoplastic adhesive, and the excess portion of the metal foil is bent in accordance with the thickness of the bookbinding object and the end piece to form a concave shape or an L shape. After that, the thermoplastic adhesive is activated for bookbinding.

In the present invention, as long as the metal foil is heated by the electromagnetic induction heating means, the cover substrate may be erected and the lower surface or the side surface of the metal foil may be heated from the lower portion or the side portion of the cover substrate. Alternatively, the cover substrate may be set in a horizontal state, and the metal foil may be heated from below the cover substrate by an electromagnetic induction heating means. Furthermore, the cover substrate may be bent into a concave shape or an L shape. It is also possible to activate the thermoplastic adhesive by heating it from the outer surface of the metal foil with electromagnetic induction heating means.

A third bookbinding method of the present invention, like the first and second bookbinding methods, has a cover substrate having a cover portion and a portion which can be a spine, and a back portion of the cover substrate. A metal foil having a thermoplastic adhesive on at least a part of which is attached to the inside of a portion which can be a flexible part, and the thermoplastic adhesive is activated by heat generation of the metal foil heated by electromagnetic induction heating means to perform bookbinding. Assuming that the bookbinding method is to contact the bookbinding article or bookbinding and the end piece on the thermoplastic adhesive, and fold the excess portion of the metal foil according to the thickness of the bookbinding article or the bookbinding article and end piece. It is characterized in that the surplus portion of the cover sheet is cut after being bent to form a concave shape or an L shape.

Further, the bookbinding file of the present invention includes a cover substrate having a cover portion and a portion which can be a back portion, and a thermoplastic adhesive attached to at least a part inside the portion which can be a back portion of the cover substrate. And a metal foil having
Assuming a bookbinding file in which the thermoplastic adhesive is activated by the heat generation of the metal foil heated by the electromagnetic induction heating means to bind the object to be bound, the arbitrary position of the metal foil is folded into a concave shape or an L shape. It is characterized by being formed to be bendable.

In the bookbinding file of the present invention, a heat insulating / absorbing agent may be laminated on a portion of the metal foil other than the thermoplastic adhesive.

In the bookbinding file of the present invention,
It is preferable to form the cover portion of the cover substrate so that it can be cut to an arbitrary length.

Further, in the present invention, the metal foil may be any magnetic material as long as it is a magnetic body that generates heat by an alternating magnetic field of electromagnetic induction, and for example, aluminum, iron, stainless steel or the like can be used.

Examples of the thermoplastic adhesives include hot-melt adhesives such as ethylene / vinyl acetate copolymer (EVA), polyolefin resins, polyester resins, polyamide resins, polyurethane resins, acrylic resins and rubber resins. , EVA-based or silicone-based adhesives can be used.

To attach an adhesive for laminating a metal foil on the back of the cover substrate, a usual acrylic or rubber adhesive or a tape thereof, a normal adhesive, a hot melt is used. It can be attached using an adhesive.

The heat blocking / absorbing agent may be of any material as long as it blocks or absorbs the heat of the excess portion of the metal foil other than the thermoplastic adhesive. For example, as a heat resistant material, Polyimide, polyphenylene sulfide, or the like can be used, and as the heat insulating material, a material having a higher melting point than a thermoplastic adhesive (for example, hot melt adhesive), ceramics or organic foam (for example, urethane foam), a heat insulating composite material ( For example, hollow glass and binder mixture), glass cloth, inorganic paper (for example, mica paper), phenol-impregnated paper, heat-foamable material-containing sheet and the like can be used. Further, ceramics can be used as a non-melting material.

[0018]

[Function] A state in which the object to be bound or the object to be bound is brought into contact with the thermoplastic adhesive of the metal foil having a thermoplastic adhesive at least in part, and the metal foil is arbitrarily bent into a concave shape or an L shape. Then, when an alternating magnetic field of electromagnetic induction is applied to the metal foil,
Since the metal foil portion other than the one laminated with the thermoplastic adhesive also contributes to heat generation, the metal foil self-heats in a short time, and this heat activates (melts) the thermoplastic adhesive to bond the article to be bound. be able to. Therefore, the metal foil heats up in a short time due to the alternating magnetic field of electromagnetic induction, the thermoplastic adhesive can be uniformly activated, and the work piece to be bonded can be evenly bonded to the thickness of the work piece to be bonded. Binding can be enabled regardless of size.

Further, by cutting the surplus portion of the cover sheet, it is possible to adjust the deviation of the cover portion of the portion corresponding to the surplus portion of the bookbinding material in the thermoplastic adhesive, and the appearance of the bookbinding file is impaired. Can be prevented.

Further, by bonding the end piece to the surplus portion of the book-binding material in the thermoplastic adhesive, the side surface of the article-to-be-bonded is not adhered to the thermoplastic adhesive, and the desired thickness of the book-binding material can be adjusted. It is possible to bind the book. In addition, by laminating the heat shield / absorber on the portion of the metal foil other than the thermoplastic adhesive, the heat of the excess portion of the metal foil can be shielded / absorbed by the heat shield / absorber,
The temperature rise of the metal foil can be prevented, and the cover substrate can be prevented from being scorched or ignited.

[0021]

Embodiments of the present invention will be described in detail below with reference to the drawings. FIG. 1 is a sectional view of a bookbinding file according to the present invention before use, and FIG. 2 is an enlarged sectional view of a portion I in FIG.

The bookbinding file 1 is such that a cover sheet 2a and a back cover sheet 2b can be folded via a spine cover 4 (back portion), and the inside of the spine cover 4 of the cover sheet base material 5 is coated. And an adhesive portion 6 attached by. In this case, the cover substrate 5 is made of, for example, an inorganic material such as ceramics or metal, a cloth or paper such as paper, synthetic paper, woven cloth or non-woven cloth, or a synthetic resin such as polyvinyl chloride, polyurethane, phenol, etc. It may be flexible or flexible, and may be transparent or opaque.

As shown in FIG. 2, the adhesive portion 6 is formed by laminating a thermoplastic adhesive 7 and a metal foil 8, and the metal foil 8 is adhered to the spine cover 4 via the adhesive 9. The thermoplastic adhesive 7 is activated (melted) by self-heating of the metal foil 8 by the high-frequency magnetic field of the bookbinding machine 10 of the electromagnetic induction heating type described later. in this case,
Although the thermoplastic adhesive 7 is laminated on the central portion of the metal foil 8, it is not always necessary to have such a structure, and for example, as shown in FIG. It may be laminated, or as shown in FIG. 4, a metal foil 8 having a thermoplastic adhesive 7 in the central portion and a heat blocking / absorbing material 30 made of a heat resistant or heat insulating material laminated on the remaining portion. May be. Note that the adhesive portion 6 does not necessarily have such a structure, and for example, the thermoplastic adhesive 7 and the metal foil 8 may be laminated in a sandwich shape.

The thermoplastic adhesive 7 of the adhesive portion 6 constructed as described above is a base polymer, wax, plasticizer,
It is formed of tackifier, antioxidant, filler, etc., and as the base polymer, for example, ethylene / vinyl acetate copolymer (EVA), polyolefin resin, polyester resin, polyamide resin, polyurethane resin, etc. The hot-melt adhesives or pressure-sensitive adhesives such as acrylic, rubber, EVA or silicone adhesives can be used.

The metal foil 8 may be made of a magnetic material such as aluminum, iron or stainless steel. As the adhesive 9, for example, an ordinary acrylic or rubber adhesive or a tape thereof, an ordinary adhesive, or a hot melt adhesive can be used.

The heat blocking / absorbing agent 30 may be made of any material as long as it blocks or absorbs the heat of the excess portion of the metal foil other than the thermoplastic adhesive.
For example, polyimide or polyphenylene sulfide can be used as the heat resistant material, and as the heat insulating material, a material having a higher melting point than a thermoplastic adhesive (for example, hot melt adhesive), ceramics or organic foam (for example, urethane foam). ), A heat insulating composite material (for example, a mixture of hollow glass and a binder), glass cloth, inorganic paper (for example, mica paper), phenol-impregnated paper, a sheet containing a heat-foaming material, and the like can be used. Further, ceramics can be used as a non-melting material.

To bind the bookbinding product A using the bookbinding file 1 having the above-described structure, first, as shown in FIG. 5, the bookbinding file 1 is opened with the front cover 2a and the back cover 2b spread. The end of the bookbinding product A is brought into contact with the thermoplastic adhesive 7. Next, as shown in FIGS.
The surplus portion of the metal foil 8 (FIG. 10), the thermoplastic adhesive 7 (FIG. 11) or the heat insulating / absorbing agent 30 (FIG. 12) is bent in a concave shape together with the front cover 2a and the back cover 2b. As shown in FIG. 6A, the bookbinding machine 10 is arranged on the lower side of the spine cover 4 of the cover sheet base material 5, or
As shown in (b), the bookbinding machine 10 is disposed on the side surface of the spine cover 4 bent in a concave shape, and the metal foil 8 self-heats by the high-frequency magnetic field of the bookbinding machine 10 to generate a thermoplastic adhesive. 7 is melted and solidified, and thus the bookbinding product A
Glue. In this case, in the bookbinding method shown in FIG. 6A, since the bent portion of the metal foil 8 is farther from the electromagnetic induction heating source, the temperature does not rise sharply,
There is no fear of burning the bookbinding product A or the cover substrate 5. On the contrary, if the amount of electromagnetic induction heating is adjusted and set to a temperature at which the thermoplastic adhesive 7 can be melted, as shown in FIG. 7, the electromagnetic wave is generated from the outer surface of the metal foil 8 bent in a concave shape. The metal foil 8 can be heated rapidly and more uniformly by induction heating, and the efficiency of bookbinding work can be improved.

Although FIG. 5 illustrates a case where bookbinding is performed using the bookbinding file 1 in which the front cover 2a and the back cover 2b are spread, the bookbinding file 1 does not necessarily have to be formed in this way. The back cover 2b may be folded and then the bookbinding product A may be brought into contact with the thermoplastic adhesive 7.

Further, in the above embodiment, the case where the front cover 2a and the back cover 2b of the cover substrate 5 have the same width is explained. In this case, the surplus portion of the article to be processed A in the thermoplastic adhesive 7 is described. The front cover 2a and the back cover 2b are misaligned by the width of, and the appearance of the bookbinding file may be impaired. Therefore, in order to solve this problem, as shown in FIG. 8, by forming any part of the front cover 2a and the back cover 2b so as to be cut, the adhesive 7 corresponds to the surplus part of the bookbinding product A. The part B can be cut, and the aesthetics of the bookbinding file 1 can be improved (see FIG. 9). Note that, in FIGS. 8 and 9, the case where the thermoplastic adhesive 7 is activated by the bookbinding machine 10 to perform bookbinding after the excess portion B on the front cover 2a and the back cover 2b is cut has been described, but it is not always the case. It is not necessary to arrange them in order. For example, the thermoplastic adhesive 7 may be activated first by the bookbinding machine 10 to perform bookbinding, and finally, the surplus portions B of the front cover 2a and the back cover 2b may be cut.

Further, in the above embodiment, the thermoplastic adhesive 7
In the above, the case where only the bookbinding product A is contacted for bookbinding has been described. Particularly, when the thermoplastic adhesive 7 and the metal foil 8 have the same width as shown in FIG.
May adhere to the side surface of the bookbinding product A. Therefore, as shown by an imaginary line in FIG.
And the book binding A and the end piece 3 are brought into contact with the thermoplastic adhesive 7 and bound in the same manner as above to prevent the thermoplastic adhesive 7 and the side surface of the book binding A from adhering to each other. can do.

In the above embodiment, the bookbinding file binding method in which the adhesive portion 6 forms a concave shape has been described. However, it is not always necessary to form the bookbinding file in this way, and the adhesive portion 6 is formed in an L shape as shown below. May be.

FIG. 16 is a cross-sectional view of the bookbinding file of the second embodiment according to the present invention before use, and FIG. 17 is II of FIG.
In an enlarged cross-sectional view of the portion, the thermoplastic adhesive 7 is provided on at least a part of the metal foil 8 (in the drawing, the case of the central portion is shown). The adhesive portion 6 does not necessarily have such a structure. For example, as shown in FIG. 18, the thermoplastic adhesive 7 is laminated on the entire metal foil 8, or as shown in FIG.
A heat blocking / absorbing agent 30 having heat resistance or heat insulation may be laminated on the remaining portion of the metal foil 8 having the thermoplastic adhesive 7 on at least a part thereof. Since the bookbinding file 1 and the adhesive section 6 are the same as those in the first embodiment except that the adhesive section 6 is formed in an L shape, the same parts are designated by the same reference numerals and the description thereof will be omitted.

To bind the bookbinding object A using the bookbinding file 1 having the above-described structure, first, as shown in FIG. 20, heat the L-shaped bookbinding file 1 in which the cover 2a is bent. The end of the bookbinding product A is brought into contact with the plastic adhesive 7. Next, the metal foil 8, the thermoplastic adhesive 7, or the heat blocking / absorbing agent 30, which is the surplus portion of the adhesive portion 6, is attached to the back cover 2b together with L
22. In this state, as shown in FIG. 22 (a) or (b), the bookbinding machine 10 is arranged on the lower side of the spine cover 4 or on the side surface side of the spine cover 4 bent in the L shape. Then, the metal foil 8 self-heats due to the high-frequency magnetic field generated by the bookbinding machine 10, so that the thermoplastic adhesive 7 is activated and solidifies to bond the bookbinding product A. In this case, the metal foil 8 can be rapidly and uniformly heated by electromagnetically heating both the lower and side outer surfaces of the L-shaped bent metal foil 8.

Note that, in FIG. 20, the case where the metal foil 8 is bent into an L-shape for bookbinding after the bookbinding object A is brought into contact with the thermoplastic adhesive 7 of the adhesive section 6 has been described, but this is not always the case. It is not necessary to form the metal foil 8 of the adhesive portion 6 first, and then the product A to be bound may be brought into contact with the thermoplastic adhesive 7. Further, in the above embodiment, the case where the front cover 2a and the back cover 2b of the cover base material 5 have the same width has been described, but in this case, only the width of the surplus portion of the bookbinding product A in the thermoplastic adhesive 7 is described. Front cover 2a and back cover 2b
There is a risk that the binding file may be misaligned and the beauty of the bookbinding file may be impaired. Therefore, in order to solve this problem, as shown in FIG. 21, an arbitrary portion of the front cover 2 or the back cover 2b (the back cover 2b is shown in the drawing) is formed so that it can be cut, so that the adhesive portion 6 is covered. The part B corresponding to the surplus part of the bookbinding product A can be cut, and the beauty of the bookbinding file 1 can be improved. In FIG. 21, after cutting the surplus portion B on the back cover 2b,
The case where bookbinding is performed by activating the thermoplastic adhesive 7 by the bookbinding machine 10 has been described, but it is not always necessary to perform such an order, and for example, the thermoplastic adhesive 7 is activated by the bookbinding machine 10 first. Let me bind and finally cover 2a
Alternatively, the surplus portion B of the back cover 2b may be cut.

On the other hand, as shown in FIGS. 32 and 33, the bookbinding machine 10 is arranged so that the heating surface is located in the rectangular opening 13 formed in the upper surface of the box-shaped bookbinding machine body 12. The heating means 11 is formed by the electromagnetic induction heating coil 14 that is a heating body and the high frequency oscillator 15 that is a high frequency supply source that supplies a high frequency current to the heating coil 14, and the file 1 is provided above the opening 13. It has a structure in which a file support portion 16 for vertically supporting is provided.

In this case, the file support 16 includes a fixed support 17a which is arranged to face the long side of the opening 13 and a movable support 17b which is arranged so as to be movable back and forth with respect to the fixed support 17a. It is composed of and
Support 17a, 1 of the file support 16 with an adjusting knob 19 provided on the guide groove 18 and slidable along the guide groove 18.
The space between 7b can be adjusted according to the thickness of the file 1. In this case, both supports 1
Both 7a and 17b may be formed to be able to move back and forth. The fixed support 17a and the movable support 17b formed in this manner are formed in a taper shape in which the upper sides of the facing surfaces are outwardly widened so that the file 1 can be easily inserted.

Further, sensors 20 and 20 for detecting the presence / absence of the file 1 are provided on the lower facing surfaces of the supports 17a and 17b.
The signals from the sensors 20, 20 are transmitted to the control unit 21, and the signals controlled by the control unit 21 are transmitted to the high frequency oscillator 15 and the display means such as the lamp 22 and the buzzer 23. It is like this. In this case, the thickness of the file 1 may be detected by the sensors 20 and 20, and the supply time of the high frequency current of the high frequency oscillator 15 may be controlled.

As shown in phantom lines in FIGS. 32 and 33, it is possible to provide a cooling unit 24 for cooling the heated file 1 at a position adjacent to the file supporting unit 16. The cooling unit 24 includes, for example, a hollow file mounting table 25 having a large number of cold air vents 25a, 25a ... Installed on the upper surface of the bookbinding main body 12, and cool air in an internal passage 26 of the file mounting table 25. Blower fan 27 for blowing air
Can be formed in. 32 and 33, reference numeral 28 is a main switch, and 29 is a power source.

Next, a specific structure of the bookbinding file of the present invention will be described with reference to FIGS. The structures of the cover sheet base material 5 and the adhesive portion 6 of the bookbinding file 1 are the same as those in the above-described embodiment, and therefore, the same portions are denoted by the same reference numerals and the description thereof will be omitted.

FIG. 13 is a partial cross-sectional perspective view of the bookbinding file having the adhesive section 6 of FIG. 2, FIG. 14 is a partial cross-sectional perspective view of the bookbinding file having the adhesive section 6 of FIG. 3, and FIG. 15 is the adhesive of FIG. It is a partial cross-section perspective view of the bookbinding file which has the part 6.

In order to bind the bookbinding object A such as papers and documents by using the bookbinding file 1 and the bookbinding machine 10 configured as described above, first, as shown in FIG.
The article A to be produced or the article A to be produced A and the end piece 3 are brought into contact with the thermoplastic adhesive 7 attached to the metal foil 8 as a surplus portion of the adhesive portion 6, the thermoplastic adhesive 7 or heat insulation. -Fold the absorbent 30 together with the front cover 2 and the back cover 2b.
Then, the bookbinding file 1 is inserted from the spine cover side of the bookbinding file 1 between the supports 17a and 17b of the file supporting portion 16 of the bookbinding machine 10, and the spine cover 4 of the bookbinding file 1 is placed on the heating surface of the heating coil 14. Then, the movable support 17b is moved to vertically support the file 1 with the file 1 sandwiched between the fixed support 17a and the movable support 17b. At this time, the main power supply 28 is set to the ON state. Then, the insertion of the file 1 is confirmed by the sensors 20, 20, and the lamp 22 receives the output signal from the control unit 21.
Is turned on, a high frequency current is supplied from the high frequency oscillator 15 to the heating coil 14, and a high frequency magnetic field is generated in the heating coil 14.

Due to the high frequency magnetic field generated in the heating coil 14, the metal foil 8 of the adhesive portion 6 attached to the spine cover 4 of the file 1 self-heats within a short time (tens of seconds) due to hysteresis loss and Joule heat due to eddy current. Then, the thermoplastic adhesive 7 is melted by the heat, and the product to be processed A or the product to be processed A
And permeation into the gap between the end portion and the side portion of the end piece 3 and the work piece A or the book piece A and the end piece 3 are adhered in the file 1, and the side surface of the end piece 3 is covered with the thermoplastic adhesive 7. The surplus part is glued. When the thermoplastic adhesive 7 is completely melted, the buzzer 23 sounds to notify the end of the high frequency application from the high frequency oscillator 15. Therefore, if the file 1 is taken out from the file support section 16 and cooled by the cooling section 24,
The thermoplastic adhesive 7 is cured and the binding of the bookbinding product A is completed.

In the above embodiment, the case where the bookbinding file 1 is placed on the upper surface of the bookbinding machine 10 and the bookbinding object A is adhered in the bookbinding file 1 has been described, but such an adhering method is not always necessary. It is not necessary to set the bookbinding machine 10 upright and set the bookbinding file 1 on the file support 16 from the side.

In the above embodiment, the case where the front cover 2a and the back cover 2b of the cover substrate 5 have the same width has been described. In this case, the surplus portion of the article to be processed A in the thermoplastic adhesive 7 is described. The front cover 2a and the back cover 2b are misaligned by the width of, and the aesthetics of the bookbinding file may be impaired. Therefore, in order to solve this problem, as shown in FIG. 8, by forming any portion of the front cover 2a or the back cover 2b so that it can be cut, the metal foil 8 and the thermoplastic adhesive 7 in the thermoplastic adhesive 7 can be cut. 7 or the part B corresponding to the surplus part of the bookbinding product A in the heat shield / absorbent 30 can be cut, and the aesthetics of the bookbinding file 1 can be improved.

In the above embodiment, when the adhesive portion 6 has a form as shown in FIG. 3, the side surface of the bookbinding product A may be adhered to the front cover 2a or the back cover 2b by the thermoplastic adhesive 7. There is. To solve this problem, FIG.
As shown in FIG. 3, after the bookbinding product A and the facing 3 are brought into contact with the thermoplastic adhesive 7, the metal foil 8, the thermoplastic adhesive 7, or the heat blocking / absorbing agent 30, which is the surplus portion of the adhesive portion 6, is removed. By bending and binding in the same manner as described above (see FIGS. 27 to 29), it is possible to prevent the bookbinding object A from being adhered by the thermoplastic adhesive 7.

In the above embodiment, the case where the metal foil 8 of the adhesive portion 6 is bent in a concave shape to bind the bookbinding product A or the bookbinding product A and the end piece 3 is described. The metal foil 8 of the portion 6 can be bent into an L shape to bind the bookbinding product A or the bookbinding product A and the end piece 3 (FIG. 2).
0 to 25).

When the thickness of the product A is small, as shown in FIGS.
While bending into a mold, the ends and side surfaces of the bookbinding product A are brought into contact with the thermoplastic adhesive 7, and an alternating magnetic field from the bookbinding machine 10 is applied from the side surface of the metal foil 8 so that the metal foil 8 is self-aligned. It is possible to generate heat and melt the thermoplastic adhesive 7 to bind the book.

Next, examples and comparative examples when the bookbinding file of the present invention is used for various bookbinding products A will be specifically described.

Example 1 Bookbinding in the case where the thickness of the bookbinding product A is 1 mm and the thickness of the metal foil 8 is 20 μm The spine cover 4 of the cover substrate 5 which is slightly larger than the bookbinding product A,
A hot-melt adhesive (ethylene / vinyl acetate copolymer system) with a thickness of 500 μm and a width of 1 mm, and a thickness of 20 μ
An aluminum foil having a width of m and a width of 20 mm is set using double-sided tape. Then, the article A to be processed is brought into contact with the hot melt adhesive, the excess metal foil portion 19 mm is bent into a concave shape together with the cover portion, the excess cover portion B is cut, and then an electromagnetic induction heating device (high frequency current 30 KHz) is applied. The hot-melt adhesive was activated by using it to bond the bookbinding product A. In addition,
In the bookbinding file prepared in Example 1 above, the thermoplastic adhesive and the bookbinding object A were sufficiently adhered, and no problem occurred.

Example 2 Bookbinding in the case where the thickness of the bookbinding product A is 1 mm and the thickness of the metal foil 8 is 50 μm On the spine cover 4 of the cover substrate 5 which is slightly larger than the bookbinding product A,
A hot-melt adhesive (ethylene / vinyl acetate copolymer system) with a thickness of 500 μm and a width of 1 mm, and a thickness of 50 μm
An aluminum foil having a width of m and a width of 20 mm is set using double-sided tape. Then, the article A to be processed is brought into contact with the hot melt adhesive, the excess metal foil portion 19 mm is bent into a concave shape together with the cover portion, the excess cover portion B is cut, and then an electromagnetic induction heating device (high frequency current 30 KHz) is applied. The hot-melt adhesive was activated by using it to bond the bookbinding product A. In addition,
The bookbinding file prepared in Example 2 above had no problem because the thermoplastic adhesive and the bookbinding product A were sufficiently bonded.

Example 3 Bookbinding in the case where the thickness of the material to be processed A is 5 mm and the thickness of the metal foil 8 is 20 μm The spine cover 4 of the cover substrate 5 which is slightly larger than the material to be processed A to be bonded,
A hot-melt adhesive (ethylene / vinyl acetate copolymer system) with a thickness of 500 μm and a width of 5 mm, and a thickness of 20 μ
An aluminum foil with a width of 25 mm and a width of 25 mm is set using double-sided tape. Then, the article A to be processed is brought into contact with the hot melt adhesive, the surplus metal foil portion 20 mm is bent into a concave shape together with the cover portion, the surplus cover portion B is cut, and then an electromagnetic induction heating device (high frequency current 30 KHz) is applied. The hot-melt adhesive was activated by using it to bond the bookbinding product A. In addition,
The bookbinding file prepared in Example 3 above had no problem because the thermoplastic adhesive and the bookbinding object A were sufficiently adhered.

Example 4 Bookbinding when the thickness of the bookbinding product A is 5 mm and the thickness of the metal foil 8 is 50 μm On the spine cover 4 of the cover substrate 5 which is slightly larger than the bookbinding product A,
A hot-melt adhesive (ethylene / vinyl acetate copolymer system) with a thickness of 500 μm and a width of 5 mm, and a thickness of 50 μm
An aluminum foil with a width of 25 mm and a width of 25 mm is set using double-sided tape. Then, the article A to be processed is brought into contact with the hot melt adhesive, the surplus metal foil portion 20 mm is bent into a concave shape together with the cover portion, the surplus cover portion B is cut, and then an electromagnetic induction heating device (high frequency current 30 KHz) is applied. The hot-melt adhesive was activated by using it to bond the bookbinding product A. In addition,
In the bookbinding file prepared in Example 4 above, the thermoplastic adhesive and the bookbinding object A were sufficiently adhered, and no problem occurred.

Example 5 The thickness of the product A to be manufactured is 10 mm and the thickness of the metal foil 8 is 20 μm.
In the case of the case, on the spine cover 4 of the cover substrate 5 which is slightly larger than the bookbinding product A,
Hot melt adhesive (ethylene / vinyl acetate copolymer system) with a thickness of 500 μm and a width of 10 mm, and a thickness of 20 μ
An aluminum foil having a width of m and a width of 30 mm is set using double-sided tape. Then, the article A to be processed is brought into contact with the hot melt adhesive, the surplus metal foil portion 20 mm is bent into a concave shape together with the cover portion, the surplus cover portion B is cut, and then an electromagnetic induction heating device (high frequency current 30 KHz) is applied. The hot-melt adhesive was activated by using it to bond the bookbinding product A. In addition,
In the bookbinding file prepared in Example 5 above, the thermoplastic adhesive and the bookbinding object A were sufficiently adhered, and no problem occurred.

Example 6 The thickness of the product A to be manufactured is 10 mm, and the thickness of the metal foil 8 is 50 μm.
In the case of the case, on the spine cover 4 of the cover substrate 5 which is slightly larger than the bookbinding product A,
Hot melt adhesive (ethylene / vinyl acetate copolymer system) with a thickness of 500 μm and a width of 10 mm, and a thickness of 50 μ
An aluminum foil having a width of m and a width of 30 mm is set using double-sided tape. Then, the article A to be processed is brought into contact with the hot melt adhesive, the surplus metal foil portion 20 mm is bent into a concave shape together with the cover portion, the surplus cover portion B is cut, and then an electromagnetic induction heating device (high frequency current 30 KHz) is applied. The hot-melt adhesive was activated by using it to bond the bookbinding product A. In addition,
In the bookbinding file created in Example 6 above, the thermoplastic adhesive and the bookbinding object A were sufficiently adhered, and no problem occurred.

Example 7 Bookbinding when the thickness of the product A to be manufactured A is 1 mm and the thickness of the metal foil 8 is 20 μm The spine cover 4 of the cover substrate 5 which is slightly larger than the product A to be processed A,
A hot-melt adhesive (ethylene / vinyl acetate copolymer system) with a thickness of 500 μm and a width of 1 mm, and a thickness of 20 μ
An aluminum foil having a width of m and a width of 20 mm is set using double-sided tape. Then, the article A to be manufactured is brought into contact with the hot melt adhesive, the excess metal foil portion 19 mm is bent into an L shape together with the cover portion, and the excess cover portion B is cut, and then the electromagnetic induction heating device (high frequency current 30 KHz). Was used to activate the hot melt adhesive to bond the bookbinding product A. In addition,
In the bookbinding file created in Example 7, the thermoplastic adhesive and the bookbinding object A were sufficiently adhered, and no problem occurred.

Example 8 The thickness of the product A to be manufactured A is 10 mm, and the thickness of the metal foil 8 is 20 μm.
In the case of the case, on the spine cover 4 of the cover substrate 5 which is slightly larger than the bookbinding product A,
Hot melt adhesive (ethylene / vinyl acetate copolymer system) with a thickness of 500 μm and a width of 10 mm, and a thickness of 20 μ
An aluminum foil having a width of m and a width of 30 mm is set using double-sided tape. Then, the article A to be processed is brought into contact with the hot melt adhesive, the excess metal foil portion 20 mm is bent into an L shape together with the cover portion, the excess cover portion B is cut, and then the electromagnetic induction heating device (high frequency current 30 KHz). Was used to activate the hot melt adhesive to bond the bookbinding product A. In addition,
In the bookbinding file prepared in Example 8 above, the thermoplastic adhesive and the bookbinding object A were sufficiently adhered, and no problem occurred.

Example 9 Bookbinding when the thickness of the bookbinding product A and the facing 3 is 1 mm and the thickness of the metal foil 8 is 20 μm On the spine cover 4 of the cover substrate 5 which is slightly larger than the bookbinding product A,
Hot melt adhesive (ethylene / vinyl acetate copolymer system) with a thickness of 500 μm and a width of 10 mm, and a thickness of 20 μ
An aluminum foil having a width of m and a width of 20 mm is set using double-sided tape. Then, the article A and the facing 3 are brought into contact with each other on the hot melt adhesive, the excess metal foil portion 19 mm is bent into a concave shape together with the cover portion, and the excess cover portion B is cut, and then the electromagnetic induction heating device (high frequency current) is used. 30 KHz) was used to activate the hot melt adhesive to bond the bookbinding product A. In the bookbinding file prepared in Example 9 above, the thermoplastic adhesive and the bookbinding product A were sufficiently adhered, and no problem occurred.

Example 10 Bookbinding in the case where the thickness of the bookbinding product A and the facing 3 is 5 mm and the thickness of the metal foil 8 is 20 μm The spine cover 4 of the cover substrate 5 slightly larger than the bookbinding product A,
Hot melt adhesive (ethylene / vinyl acetate copolymer system) with a thickness of 500 μm and a width of 15 mm, and a thickness of 20 μ
An aluminum foil with a width of 25 mm and a width of 25 mm is set using double-sided tape. Then, the article A and the end piece 3 are brought into contact with each other on the hot melt adhesive, the excess metal foil portion 20 mm is bent into an L shape together with the cover portion, and the excess cover portion B is cut, and then the electromagnetic induction heating device (high frequency wave) is used. The hot melt adhesive was activated using a current of 30 KHz) to adhere the bookbinding product A. In the bookbinding file created in Example 10 above, the thermoplastic adhesive and the bookbinding object A were sufficiently adhered, and no problem occurred.

[Comparative Example 1] A bookbinding product A having a thickness of 1 mm was bound with a hot-melt adhesive having a width of 1 mm. The spine of a cover substrate slightly larger than the bookbinding product A had a thickness of 500 μm. A hot-melt adhesive (ethylene / vinyl acetate copolymer system) with a width of 1 mm and an aluminum foil with a thickness of 20 μm having the same size as the hot-melt adhesive are set using double-sided tape. Then, the article to be processed A was brought into contact with the hot melt adhesive and an attempt was made to activate the hot melt adhesive using an electromagnetic induction heating device (high frequency current 30 KHz). No activation was observed. A similar attempt was made by increasing the high frequency current of the electromagnetic induction heating device from 30 KHz to 50 KHz, but the activation of the hot melt adhesive was not observed, and bookbinding could not be performed. Further, the same experiment was conducted by increasing the thickness of the aluminum foil to 50 μm, but activation of the hot melt adhesive was not observed.

[0060]

As described above, according to the present invention, the following effects can be obtained.

1) Binding can be performed according to the desired thickness of the book.

2) A metal foil laminated with a thermoplastic adhesive is
Since the surface area is increased by forming the concave shape or the L shape, heat is generated in a short time by the alternating magnetic field of electromagnetic induction, and the thermoplastic adhesive can be uniformly activated, and the article to be bound is made uniform. Can be glued.

3) By forming the cover portion of the cover base material so that it can be cut to an arbitrary length, it is possible to adjust the shift of the cover portion of the thermoplastic adhesive corresponding to the surplus portion of the bookbinding product. In addition to being able to improve the appearance of the bookbinding file.

4) By binding the end piece to the surplus portion of the book-binding material in the thermoplastic adhesive, the side surface of the book-binding material is not bonded to the adhesive, and bookbinding is performed according to an arbitrary thickness of the book-binding material. Can be possible.

5) By laminating a heat insulating / absorbing agent on a portion of the metal foil other than the thermoplastic adhesive, the heat of the excess portion of the metal foil can be blocked / absorbed by the heat insulating / absorbing agent. The temperature rise of the foil can be prevented, and the cover substrate can be prevented from being burnt or ignited.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing a state before use of a first embodiment of a bookbinding file according to the present invention.

FIG. 2 is an enlarged sectional view of a portion I in FIG.

FIG. 3 is another enlarged cross-sectional view of the I portion of FIG.

FIG. 4 is still another enlarged cross-sectional view of the I part of FIG.

FIG. 5 is a cross-sectional view showing a folded state of the bookbinding file of the first embodiment.

FIG. 6 is a cross-sectional view of a state in which the thermoplastic adhesive is activated by the bookbinding machine and the bookbinding object is adhered thereto.

FIG. 7 is another cross-sectional view showing a state in which the thermoplastic adhesive is activated by the bookbinding machine and the bookbinding object is adhered thereto.

FIG. 8 is a cross-sectional view showing a state before cutting the surplus portion of the cover portion of the bookbinding file of the first embodiment.

FIG. 9 is a sectional view showing a state in which bookbinding is completed.

FIG. 10 is an enlarged cross-sectional view of an adhesive portion of the bookbinding file of the first embodiment.

FIG. 11 is another enlarged cross-sectional view of the adhesive portion of the bookbinding file of the first embodiment.

FIG. 12 is still another enlarged cross-sectional view of the adhesive portion of the bookbinding file of the first embodiment.

FIG. 13 is a partial cross-sectional perspective view of an example of the bookbinding file of the first embodiment in use.

FIG. 14 is a partial cross-sectional perspective view of another example of the bookbinding file of the first embodiment in use.

FIG. 15 is a partial cross-sectional perspective view showing the usage state of another example of the bookbinding file of the first embodiment.

FIG. 16 is a cross-sectional view showing a state before use of the second embodiment of the bookbinding file according to the present invention.

FIG. 17 is an enlarged cross-sectional view of a II part in FIG.

FIG. 18 is another enlarged cross-sectional view of section II of FIG.

FIG. 19 is another enlarged cross-sectional view of the II part in FIG.

FIG. 20 is a cross-sectional view showing a folded state of the bookbinding file of the second embodiment.

FIG. 21 is a cross-sectional view showing a state before cutting the surplus portion of the cover portion of the bookbinding file of the second embodiment.

FIG. 22 is a cross-sectional view showing a state in which the thermoplastic adhesive is activated by the bookbinding machine in the second embodiment to adhere the bookbinding object.

FIG. 23 is a partial cross-sectional perspective view of an example of the bookbinding file of the second embodiment in use.

FIG. 24 is a partial cross-sectional perspective view showing the usage state of another example of the bookbinding file of the second embodiment.

FIG. 25 is a perspective view, partly in section, of another example of the bookbinding file of the second embodiment in use.

FIG. 26 is a cross-sectional view showing a bookbinding state of a bookbinding file in the case of having a booklet and a booklet.

FIG. 27 is a cross-sectional view showing a state before cutting of a surplus portion of a cover portion of a bookbinding file in the case of having a booklet and a booklet.

FIG. 28: Activate the thermoplastic adhesive with the bookbinding machine,
It is sectional drawing which shows the state which bonded the to-be-printed article and the end piece.

FIG. 29 is a cross-sectional view showing a state in which the bookbinding to be bound and the bookbinding in the end are completed.

FIG. 30 is a cross-sectional view showing the bookbinding state of the bookbinding file when the bookbinding product is thin.

FIG. 31 is a cross-sectional view showing a state in which a thermoplastic material is activated by a bookbinding machine and the bookbinding object is adhered when the bookbinding object is thin.

FIG. 32 is a cross-sectional view showing a bookbinding state by the bookbinding machine.

FIG. 33 is a schematic perspective view of a bookbinding machine.

[Explanation of symbols]

 2a Cover 2b Back cover 3 Looking back 4 Back cover (back) 5 Cover base material 6 Adhesive part 7 Thermoplastic adhesive 8 Metal foil 30 Heat insulation / absorption agent A Workpiece

Claims (7)

[Claims] 1. A cover sheet base material having a cover sheet portion and a portion that can be a back portion, and a metal foil having a thermoplastic adhesive at least partially attached to the inside of the portion that can be the back portion of the cover sheet substrate. Then, in the bookbinding method in which the thermoplastic adhesive is activated by the heat generation of the metal foil heated by the electromagnetic induction heating means to perform bookbinding, the bookbinding object is brought into contact with the thermoplastic adhesive, According to the thickness, the excess portion of the metal foil is bent to form a concave shape or an L shape, and then the thermoplastic adhesive is activated for bookbinding. 2. A cover sheet base material having a cover sheet portion and a portion capable of becoming a back portion, and a metal foil having a thermoplastic adhesive at least partially attached to the inside of the portion capable of becoming a back portion of the cover substrate. Then, in the bookbinding method in which the thermoplastic adhesive is activated by the heat generation of the metal foil heated by the electromagnetic induction heating means to perform bookbinding, the bookbinding product and the end piece are brought into contact with the thermoplastic adhesive, A bookbinding method, characterized in that an excess portion of the metal foil is bent to form a concave shape or an L shape according to the thickness of the bookbinding product and the end piece, and then the thermoplastic adhesive is activated for bookbinding. . 3. The thermoplastic adhesive is activated by heating from the outer surface of the concave or L-shaped metal foil by an electromagnetic induction heating means.
Bookbinding method described. 4. A cover sheet base material having a cover sheet portion and a portion which can be a back portion, and a metal foil having a thermoplastic adhesive at least partially attached to the inside of the portion which can be the back portion of the cover sheet substrate. Then, in the bookbinding method in which the thermoplastic adhesive is activated by the heat generation of the metal foil heated by the electromagnetic induction heating means to perform bookbinding, the bookbinding product or the bookbinding product and the end piece are brought into contact with each other on the thermoplastic adhesive. Cutting the surplus portion of the cover sheet after the surplus portion of the metal foil is bent to form a concave shape or an L shape in accordance with the thickness of the book binding material or the book binding material and the end piece. A bookbinding method characterized by: 5. A cover sheet base material having a cover sheet portion and a portion which can be a back portion, and a metal foil having a thermoplastic adhesive at least partially attached to an inner side of the cover sheet portion which can be a back portion. Then, in the bookbinding file in which the thermoplastic adhesive is activated by the heat generation of the metal foil heated by the electromagnetic induction heating means to bind the object to be bound, the arbitrary position of the metal foil is folded into a concave shape or an L shape. A bookbinding file characterized by being bendable. 6. The bookbinding file according to claim 5, wherein a heat insulation / absorption agent is laminated on a portion of the metal foil other than the thermoplastic adhesive. 7. The bookbinding file according to claim 5, wherein the cover portion of the cover substrate is formed so that it can be cut to an arbitrary length.