JP3600520B2 - Back member for bookbinding - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a bookbinding back member, and more particularly to a bookbinding back member having durability that is resistant to tearing.
[0002]
[Prior art]
Conventionally, when binding a notebook or the like, a configuration is adopted in which a large number of sheets of paper are sandwiched between a pair of front and back covers, and a back member is attached to these back regions to integrate the cover and the intermediate paper. I have. As the back member, as shown in FIG. 4, a vinyl chloride resin layer 41 formed by calendar topping is provided on the outer surface side of the base paper 40 bonded to the back region, and thereafter, a vinyl chloride resin layer is formed. A type in which the surface of the surface 41 is embossed is known. As another configuration, there is a back member of a type in which the base paper 40 is impregnated with an acrylic resin and the upper surface is coated with an acrylic resin paint.
[0003]
[Problems to be solved by the invention]
However, in the conventional back member, the plasticizer of the vinyl chloride resin may migrate, and there is an inconvenience that the printed material is damaged when it comes into contact with the printed material. Further, the type in which the base paper is impregnated with an acrylic resin and the upper surface thereof is coated with the same resin paint has a disadvantage that it is easily worn and damaged.
[0004]
[Object of the invention]
The present invention has been devised in view of such inconvenience, and its purpose is to provide a durability that hardly causes abrasion or the like by increasing the strength of the back member, and to eliminate the migration of the plasticizer. To provide a bookbinding back member that does not stain printed matter.
[0005]
[Means for Solving the Problems]
In order to achieve the above object, the present invention provides a bookbinding back member that is attached to a back side region of a notebook main body in which a number of sheets of paper are sandwiched between a front cover and a back cover.
Wherein comprises a substrate sheet which is adhered to the notebook body, a transparent resin sheet surface treatment by Rutotomoni corona discharge is provided has been subjected to the outer surface side of the substrate sheet, the resin sheet is provided on the inner surface side And a printed layer provided on the base paper, and adhered to the base paper via an adhesive layer. By adopting such a structure, the resin sheet itself exhibits stronger resistance to abrasion and breakage than the conventional coating, and provides a strong backup of the base paper to increase the strength of the entire back member. Can be enhanced. Further, the printing layer can be protected from fouling, and various printings can be performed to form various back members.
[0007]
The resin sheet may be made of, for example, a polyolefin resin such as polypropylene or polyethylene. Thereby, the durability of the back member can be maintained constant, and the generation of harmful gas during incineration can be avoided.
[0008]
Further, the sheet in the present invention is preferably made of non-stretched polypropylene. The non-stretched film can have a property that it is not stretched, i.e., a stretch allowance, so that when applied to the back member of a notebook with frequent opening and closing, the unstretched film sufficiently follows the opening and closing. It is possible to maintain the strength by exhibiting the properties.
[0009]
The resin sheet in the present invention may be a sheet subjected to a surface treatment by corona discharge, whereby good printing accuracy when a printing layer is provided can be ensured. The thickness of the resin sheet is set to a thickness sufficient to reinforce the base paper, and in the present invention, a thickness of 40 μm to 80 μm can be exemplified. If the thickness is less than 40 μm, the reinforcing effect is weak, while if it exceeds 80 μm, the thickness of the entire back member becomes too large, and the step from the cover increases. The base paper preferably has a thickness of 50 μm to 120 μm.
[0010]
【Example】
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0011]
FIG. 1 is a schematic perspective view showing a state in which the present invention is applied to a notebook, and FIG. 2 is an enlarged sectional view of a main part thereof. In these drawings, a notebook 10 has a notebook body 13 having a large number of sheets P sandwiched between a front cover 11 and a back cover 12, and one end of the notebook body 13, that is, the front cover 11, the back cover 12, And a back member 14 attached so as to straddle the back side region of the paper P.
[0012]
The back member 14 has a band shape having a width that straddles the back side region from front to back, and the back member 14 includes, as shown in FIG. It is provided with a printed layer 23 and a resin sheet 24 provided on the outer surface side with an adhesive layer 21 interposed therebetween. The printing layer 23 is provided by performing gravure printing on the inner surface side of the resin sheet 24, and printing is performed through the resin sheet 24 by forming the resin sheet 24 from a transparent non-stretched, that is, unstretched polypropylene sheet. The layer 23 is exposed. As the polypropylene used as the sheet material in this embodiment, a homopolymer type polypropylene is employed. In addition, the resin sheet 24 whose surface is subjected to corona discharge treatment is used to improve the printing accuracy of the printing layer 23, and the outer surface, that is, the surface, is embossed so that the surface is easily damaged. And a certain cosmetic effect can be obtained in combination with the print layer 23. Although not particularly limited, the thickness of the resin sheet 24 in this embodiment is about 50 μm.
[0013]
The back member 14 is adhered to an inner surface of the notebook body 10 via an adhesive layer 27 (see FIG. 2).
[0014]
In the above-described embodiment, the configuration in which the printed layer 23 is provided on the inner surface side of the resin sheet 24 is adopted. However, the present invention is not limited to this, and even if the resin sheet 24 is colored. Good. However, if the resin sheet 24 is directly colored, the printed layer 23 is preferably provided on the inner surface side of the resin sheet 24 since the coloration may occur over time. In addition, since the polypropylene, which is a molding material of the resin sheet 24, is of a homopolymer type, so-called fluff is less likely to occur during cutting, and durability when used as a back member of a notebook is improved. Can be.
[0015]
【The invention's effect】
As described above, according to the present invention, the bookbinding back member attached to the back side region of the notebook main body includes a base paper, a transparent resin sheet laminated on the outer surface side thereof, and the resin sheet. It is composed of a printed layer provided on the inner surface side of the base paper, and the resin sheet is bonded to the base paper via an adhesive layer. This makes it possible to provide a bookbinding back member that is hard to tear the base paper and has long-lasting durability. In addition, it is possible to protect the printing layer from fouling and at the same time to prevent the printing layer from fading, to maintain the decorative effect over a long period of time, and to perform various printings to perform various kinds of bookbinding backing. A member can be provided.
[0017]
When the resin sheet is made of polypropylene, polyethylene, or the like, the durability of the back member can be maintained constant, and the generation of harmful gas when incinerated can be avoided.
[0018]
Furthermore, when the sheet of the present invention is made of non-stretched polypropylene, even if the cover of the book is frequently opened and closed, it will be able to follow the opening and closing operation without difficulty, and can sufficiently withstand long-term use. Can be.
[Brief description of the drawings]
FIG. 1 is a schematic perspective view of a notebook according to an embodiment.
FIG. 2 is an enlarged sectional view taken along line AA of FIG. 1;
FIG. 3 is an enlarged sectional view of an exploded back member according to an embodiment; FIG. 4 is an enlarged sectional view of an exploded conventional back member.
[Explanation of symbols]
REFERENCE SIGNS LIST 10 notebook 11 front cover 12 back cover 14 back member 20 base paper 21 adhesive layer 23 printing layer 24 resin sheet P paper

Claims (3)

In a bookbinding back member attached to a back side region of a notebook body in which a number of sheets of paper are sandwiched between a front cover and a back cover,
Wherein comprises a substrate sheet which is adhered to the notebook body, a transparent resin sheet surface treatment by Rutotomoni corona discharge is provided has been subjected to the outer surface side of the substrate sheet, the resin sheet is provided on the inner surface side A bookbinding back member comprising a printed layer provided thereon and being adhered to the base paper via an adhesive layer. The resin sheet according to claim 1 Symbol placement bookbinding back member, characterized in that it is a polyolefin resin. The sheet according to claim 1 or 2 bookbinding back member, wherein the being of a non-oriented polypropylene.

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