JPH09220880A - Separate book and bookbinding method thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To realize the separation of some part or the whole of a text or fascicles, when necessary, in a book, which is prepared by binding with one cover. SOLUTION: In a book, which is prepared by binding a text or a plurality of fascicles 10 with one cover 12, the backs of the text of a plurality of fascicles 10 are separably bonded to the corresponding portion of the cover 12 through hot-melt adhesive under the state that, as for some part or the whole of the text or respective fascicles, hot-melt adhesive is hard to stick to the text or a plurality of the fascicles 10 side.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a separable book in which a main body or a plurality of separate books can be separated from a cover, and a bookbinding method thereof.

[0002]

2. Description of the Related Art In some textbooks and the like using thin paper, it is sometimes necessary to separate a certain part of the text from the cover and separately save or re-file. In such a case, there is no choice but to use a knife or the like to separate the books. If you do this, the book itself will break and the rest of the text will be scattered.
Also, in books for mail order, etc., multiple separate books are wrapped on one cover, but when separating the separate books, the covers must be torn and the separate I couldn't just leave unnecessary things on the cover.

On the other hand, there is a postcard made of thick paper on which a photo book, poetry book, paintings, etc. are printed, which is mounted on a thick paper hard cover, and these texts can be separated. There are also things. In this case, the separable structure of the text is as follows: the text is back-packed with an emulsion adhesive and wrapped with chilled cloth to wrap the cover, and perforations such as perforations are inserted near the edges of the text. Is the way. However, in the former case, the adhesive permeates between the texts to deteriorate the quality, and the separation is not easy. Further, in the latter case, the presence of perforations causes the alignment of the signatures to be poor, resulting in a poor finish, and it may take a lot of time and labor to cut the paper, which may result in failure.

The present invention is intended to solve such a problem, and it is possible to easily obtain only a necessary portion of a text or a necessary separate volume from one book without destroying the book.
Moreover, it is designed so that it can be separated cleanly. In this case, the text or the separate book is adhered to the extent that it is not separated by normal handling, and when separated, the condition is that the back of the text or the separate book is not sticky. It satisfies this condition.

[0005]

Means for Solving the Problems To solve the above problems, the present invention is a book in which a body or a plurality of separate books are wrapped with one cover, and the back of the body or a plurality of separate books is covered with a cover. It is characterized in that part or all of the text or each of the separate books is adhered to the relevant part with a hot-melt adhesive so that the hot-melt adhesive cannot be easily attached to the main text or multiple separate book sides. It provides a separable book.

In this case, the body or the plurality of separate books are thin papers, and the cover is also a thin paper, and the separable book, the body or the plurality of separate books are thick paper such as postcards, and the cover is also hard. We provide separable books that are thick paper such as covers.

As a bookbinding method for the above separable book, the present invention applies a release agent that weakens the adhesive strength of the adhesive to the text or a plurality of separate books, and at the same time, uses a hot melt having a weak adhesive strength. A method for binding a separable book, characterized by applying a system adhesive and adhering a body or a plurality of separate books and a cover. Apply a release agent that weakens the adhesive strength of the adhesive to the main text or multiple separate books, and apply a hot-melt adhesive that has weak adhesive strength to the front cover to separate the main text or multiple separate books and the front cover. A method for binding a separable book characterized by being adhered. As a separate book, a cover with a release ink that weakens the adhesive strength of the adhesive is applied, and a hot-melt adhesive with weak adhesive strength is applied to either one of the multiple separate books or the cover. A method for binding a separable book is characterized by bonding a plurality of separate books and a cover.
Are provided respectively.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is an explanatory view showing an example of a book according to the present invention. The book according to the present invention is a text or a plurality of separate books (hereinafter referred to as the text etc.) made of thin paper. 10 is wrapped with a cover sheet 12 which is also made of thin paper. FIG. 2 is also an explanatory view showing an example of a book according to the present invention. In this example, the text 10 is a thick paper on which a photo book, a poetry book, a painting, etc. are printed like a postcard.
2 is also a thick paper such as a hard cover (13 is a look back). Therefore, in the present invention, the back of the text etc.
It is possible to separate part or all or each part of the text 10 or the like from the part of the text 2 or the like 10 that touches the back (hereinafter referred to as the relevant part) in a state in which adhesive is difficult to attach to the text or multiple volume book sides. It is glued. As a result, it is possible to separate only necessary portions of the body of text 10 from the cover 12, and the other parts can be left on the cover 12 as they are.

In the bookbinding method that enables this, first, a release agent is applied to the back of the text 10 and the like, and a hot-melt (elastomer) adhesive (hereinafter referred to as adhesive) having a strong adhesive force is applied thereon. Is applied to bond the back of the body 10 and the corresponding portion of the cover 12 to each other. Of course, this work may be performed manually, but a binder (a perfect binding machine) shown below is preferable in terms of efficiency.

FIG. 3 is a schematic diagram thereof, in which the body 10 is sandwiched by a vise 16 attached to a chain conveyor 14 or the like and sent, and docked with a cover 12 sent by a slat conveyor 18 or the like. During the transfer of 10 of this text,
The release agent 22 is applied to the back of the text 10 by a spray gun 20 or the like, and then the adhesive 2 is applied by a gluing roller 24 or the like.
6 is applied. Needless to say, the spray gun 20 and the gluing roller 24 are merely examples, and other applicators may be used.

The back of the body or the like 10 which has been subjected to the above processing is aligned with the corresponding portion of the cover sheet 12 (the chain conveyor 14 and the slat conveyor 18 are brought close to each other), and the cover sheet 12 is pressed by the pressing roller 28 provided below the slat conveyor 18. Pass it over and crimp both. Next, the booklet 10 is completed by ejecting the body text 10 having the cover sheet 12 stuck thereto from the chain conveyor 14 and clamping the back and side surfaces of the body body material 10 from the top of the cover sheet 12 by the form clamping machine 30. The adhesive 26
May be applied to the cover sheet 12 side.

By the way, in the above, the release agent is widely used as a regulator (suppressor) for the adhesive force of gum tape or Japanese paper tape, and the present invention also suppresses the adhesive force of the adhesive. To use. The release agent is "Polysol ROY" manufactured by Showa Polymer Co., Ltd.
-6300 "series etc.

The hot-melt adhesive is a thermoplastic adhesive and is widely used for perfect binding in the bookbinding industry. The adhesive used here needs to have a weak adhesive force, and for that purpose, the content of EVA which is an adhesive component is made smaller than usual. In this way, when the release agent and the adhesive are used, the text etc.
Is separated from the cover sheet 12, and when separated, the interface peels off at the boundary surface, and the back of the text etc. 10 is attached with an adhesive and is not sticky.

On the other hand, there is a material called a pressure-sensitive adhesive that does not have as strong an adhesive force as an adhesive. The molecular structure of the pressure-sensitive adhesive is essentially the same as that of the adhesive, and one having a large molecular weight is classified as an adhesive and one having a small molecular weight is classified as an adhesive. Therefore, the term “adhesive” as used in the present invention includes this adhesive. However, the pressure-sensitive adhesive used in the present invention is also preferably one having a weak adhesive force with the EVA content reduced. An adhesive suitable for these is “Nittite H-6783” manufactured by Nitta Gelatin Co., Ltd.

Since these adhesives are thermoplastic, they cannot adhere to the non-coated article unless they are melted by applying heat (hence, the adhesive strength is not derived), and they melt at a temperature of more than 30.degree. However, if the temperature exceeds 220 ° C., the oxidation is remarkable and the adhesive strength is poor. From this, the use (coating) temperature of the adhesive in the present invention is this temperature, but 140 to 180 ° C., which is the intermediate temperature, is suitable.

Further, there is a book in which a releasable ink that weakens the adhesive force of the adhesive (has a releasing action) is applied to the cover of the book. When such a book is used as a separate book in the present invention, it is a separate book. The same effect can be obtained by applying the adhesive to one of the book and the cover, and then adhering the separate book and the cover.

The above-mentioned release agent and adhesive are applied in a predetermined amount at an appropriate ratio according to the adhesive force required by the form of the book, etc.
It will be applied in a thickness of μm to 2 mm. The book thus bound can be separated from the cover, but it goes without saying that the book is adhered with an adhesive force that does not easily peel off under normal handling (for example, handling in the distribution process). .

[0019]

As described above, the present invention is as described above. Therefore, a part or all of the text or a part of the text from a book in which the text or a plurality of separate books are wrapped with one cover is necessary. Can be separated. At this time, if the user pulls it by hand, it can be separated without damaging the main body or the cover, and the rest of the part is stored on the cover as it is, so that the utility value of the book can be further enhanced.

[Brief description of drawings]

FIG. 1 is an explanatory diagram of a book showing an example of the present invention.

FIG. 2 is an explanatory diagram of a book showing an example of the present invention.

FIG. 3 is an explanatory diagram of a bookbinding process showing an example of the present invention.

[Explanation of symbols]

 10 Main Text or Multiple Separate Volumes 12 Cover 22 Release Agent 26 Hot Melt Adhesive

Claims (6)

[Claims] 1. In a book in which a body or a plurality of separate books are wrapped with one cover, a back of the body or a plurality of separate books is attached to a corresponding portion of the cover by a hot-melt adhesive or a part of the body or A separable book, characterized in that all or each of the separate books is detachably adhered to the main body or a plurality of separate books in a state where a hot-melt adhesive is hard to attach to the side. 2. The separable book according to claim 1, wherein the text or a plurality of separate books are thin papers, and the cover is also thin papers. 3. The separable book according to claim 1, wherein the text or a plurality of separate books are thick paper such as postcards, and the cover is thick paper such as a hard cover. 4. The method for binding a separable book according to claim 1, wherein a hot release agent having a weak adhesive force is applied to the text or a plurality of separate books by applying a release agent for weakening the adhesive force of the adhesive agent. A method for binding a separable book, characterized by applying a melt adhesive and adhering a text or a plurality of separate books and a cover. 5. The method for binding separable books according to claim 1, wherein a release agent that weakens the adhesive strength of the adhesive is applied to the text or a plurality of separate books, and a weak adhesive strength is applied to the cover. A method for binding a separable book, characterized by applying a hot-melt adhesive having the same and adhering a body or a plurality of separate books and a cover. 6. The method for binding a separable book according to any one of claims 1 to 3, wherein as a separate book, a cover sheet coated with a release ink that weakens the adhesive force of the adhesive is adopted.
A method for binding a separable book, characterized in that a hot melt adhesive having a weak adhesive force is applied to one of a plurality of separate books and a cover, and the plurality of separate books and a cover are adhered to each other.