JP3201060B2 - Binding paper products and binding dies - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a binding paper product and a binding die for producing the binding paper product.

[0002]

2. Description of the Related Art Conventionally, a calendar generally used as a bound paper product is shown in FIG. 6 in a state where twelve sheets of paper coated with ink as an adhesive substance are superposed in an upper edge portion in a printing process. As described above, by being pressed and heated by the male mold 3 and the female mold 4 having the convex portion 1 and the concave portion 2 each having a trapezoidal cross section, they are combined by the adhesive force of the ink. Then, the calender 5 thus bound is formed with an uneven portion 6 having a crank-shaped cross-sectional shape.

[0003]

In the above-described calender 5, since the concave and convex portions 6 are formed in a crank shape, the corners 6a are formed from the paper surface of the turning paper 5a. As a result, an upright surface 6b that bends and rises sharply is formed. However, when such an uneven portion 6 is formed, since the male mold 3 and the female mold 4 do not approach the turning paper 5a in a direction perpendicular to the turning surface 6b, the portion is not provided. It is difficult to adjust the pressing force in the above. Moreover, in order to surely adhere the upright surface 6b,
If the close distance between the male mold 3 and the female mold 4 on the vertical surface 6b is set to be small, the frictional force by the molds 3 and 4 becomes excessive, and the turning paper 5a is broken. The problem described above occurs. In addition, when the pressure is set as described above, the pressing force over the entire area of the uneven portion 6 becomes non-uniform, and the pressurized state in portions other than the upright surface 6b becomes incomplete, so that reliable bonding is performed. There is a problem that cannot be done.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned circumstances, and it is intended to stabilize a bonding pressure in an uneven portion so as to prevent a paper breakage and to improve bonding reliability. It is an object of the present invention to provide a paperwork and a binding die.

[0005]

In order to achieve the above object, the present invention proposes the following four means. The first means is a binding paper product which binds a plurality of papers to be superimposed by applying an adhesive substance on the surface while heating and pressing the papers to bend the papers to form the uneven portions and to bind them together. A binding paper product in which the cross-sectional shape of the uneven portion is formed into a curved surface formed by smoothly changing the curvature, and the second means is that the uneven portion has a total length in the width direction of the paper. The present invention proposes a binding paper product formed in a band shape over a plurality of bands, and a third means is a binding device in which a plurality of uneven portions are formed in a spot shape in which a plurality of uneven portions are arranged at intervals on the surface of the paper. We propose laminated paper products. In addition, the fourth means includes a male mold and a female mold which are arranged with a plurality of sheets of paper which are coated with an adhesive substance and superposed on each other, and the paper is placed between the two molds. A binding die for binding while forming an uneven portion by applying pressure while heating, wherein a convex portion of a male mold and a concave portion of a female mold forming the uneven portion have a smooth curvature. A binding die having a curved surface shape that is configured by changing the shape is proposed.

[0006]

According to the binding paper product of the first means of the present invention, since the cross-sectional shape of the uneven portion is formed into a curved surface formed by smoothly changing the curvature, it is provided by a mold. The applied pressure is effectively dispersed along the shape of the uneven portion, and reliable pressurization and bonding are performed over the entire area of the uneven portion. As a result, a bound paper product that is hard to be peeled off even after long-term use is configured. According to the bound paper product according to the second means, the strength against bending in the width direction is improved by the uneven portion formed over the entire length in the width direction of the paper. According to the binding paper product according to the third means, by forming the uneven portion in a spot shape, the pressing force applied by the mold is concentrated on the uneven portion, and the paper is securely bonded. . In addition, by arranging a plurality of the uneven portions at intervals, reliable bonding over a wide range can be performed. According to the binding processing die according to the fourth means,
The paper sandwiched between the male mold and the female mold disperses the applied pressure along the convex part of the male mold and the concave part of the female mold, so that the paper is uniformly distributed over the entire area of the uneven part. It will be pressurized.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of a binding paper product and a binding die (hereinafter, simply referred to as a die) according to the present invention will be described below with reference to FIGS. The binding paper product 10 according to the present embodiment is, for example, as shown in FIG.
Assume a calendar formed by the mold 11 shown in FIG.

[0008] The mold 11 includes a male mold 12 disposed below the paper-cutting paper 10a, a plurality of which are superimposed on each other in a state where ink (not shown), which is a kind of an adhesive substance, is applied to the surface.
And a female mold 13 which is brought close to the male mold 12 from above the male mold 12. The male mold 12 includes a mounting surface 12a that is horizontally disposed to support the turnover paper 10a of the calendar 10 from below, and a protruding portion 12b (convex portion) and a protrusion 12c protruding from a part of the mounting surface 12a. (Convex portion). The female mold 13 has a horizontal surface 13a opposed to the mounting surface 12a of the male mold 12,
The protrusion 12b of the male mold 12 is opposed to the protrusion 12b of the male mold 12 and the groove 13b (concave part) capable of storing the protrusion 12b. And a concave portion 13c (concave portion) capable of storing the same.

The protruding shape 12b and the groove 13b are formed in a band shape over the entire length in the width direction of the turning paper 10a to be disposed therebetween, and the turning paper 10a is fixed at an intermediate position in the longitudinal direction. The concave-convex portion 14a bent in the cross-sectional shape can be formed.
The protrusion 12c is formed in a substantially hemispherical shape, and the mounting surface 1 on one side partitioned by the protrusion 12b.
Plural 2a are arranged at intervals in the horizontal direction. Then, the turning paper 10a is disposed between the protrusions 12c and the recesses 13c arranged in the same number as the protrusions 12c and sandwiched therebetween, whereby the turning paper 10a is locally bent to form a spot. The uneven portion 14b can be formed.

The projection 12b and the groove 13b of the present embodiment have a substantially semicircular cross-sectional shape, that is, a cut shape cut along a plane perpendicular to the projection 12b and the groove 13b. . Further, in the protruding portion 12b, the cross-sectional shape of the connecting portion 12d between the mounting surface 12a and the protruding portion 12b and in the connecting portion 13d between the horizontal surface 13a and the groove portion 13b rapidly change the curvature. The connection is smoothly made by an arc shape so as not to cause a problem, that is, so as not to have a sectional shape having a discontinuous corner or the like. The mounting surface 12a and the horizontal surface 13a
In the connecting portions 12e and 13e, the shape is smoothly connected by an arc shape so that any vertical cross-sectional shape does not suddenly change its curvature.

With the mold 11 configured as described above,
To form the calendar 10, a plurality of turning papers 10a
As shown in FIG. 2, the surface where one of the edges is coated with ink is overlapped, and as shown in FIG. 2, a pressing force is applied in a direction perpendicular to the mounting surface 12 a by sandwiching the portion where the ink is coated with the mold 11. At the same time, heat at a constant temperature. As a result, the turning papers 10a are fixed to each other by the adhesive force of the ink interposed therebetween. The turning paper 10a is formed with a band-shaped uneven portion 14a at a position sandwiched between the protrusion 12b and the groove 13b, and a spot-shaped uneven portion 14b is formed at a position sandwiched between the protrusion 12c and the recess 13c. Is formed.

Here, the turning paper 10a sandwiched between the male mold 12 and the female mold 13 at the positions of the protrusions 12b, the grooves 13b and the protrusions 12c and the recesses 13c has a direction not perpendicular to the paper surface. A pressing force will be applied. However, according to the mold 11 of the present embodiment, since these cross-sectional shapes are formed by a curved surface shape so as not to change the curvature abruptly, the pressing force applied to the turning paper 10a is locally excessively large. The protrusions 12
b. Effectively dispersed along the surface of the projections 12c and the like. As a result, it is possible to generate a uniform pressing force over the entire area of the concave and convex portions 14a and 14b and to perform reliable bonding. In addition, since an excessive frictional force does not act on the turning paper 10a, it is possible to manufacture a good calender 10 by avoiding problems such as tearing of the turning paper 10a due to the formation of the uneven portions 14a and 14b. it can.

On the other hand, in the calender 10 formed by the mold 11 of the present embodiment, as shown in FIG. 3, a strip-shaped uneven portion 14a is formed over the entire length in the width direction by the protrusions 12b and the grooves 13b. Therefore, the bending strength in the width direction is improved, and it is possible to prevent the calender 10 from being deformed in the width direction, for example, when the calendar 10 is hung on a wall or when the flipping paper 10a is turned. In addition, by reducing the width and the like of the concave and convex portions 14a, the pressing force of the mold 11 can be concentrated and the adhesive strength of the turning paper 10a can be improved. It is possible to form the uneven portion 14a with improved adhesive strength.

Since the spot-shaped uneven portion 14b formed by the projection 12c and the concave portion 13c is formed to have a small area, the pressing force applied by the mold 11 can be concentrated on the uneven portion 14b. As a result, the reliability of the bonding can be improved. Further, by adopting a plurality of spot-shaped uneven portions 14b, the turning paper 10
a can be adhered over a wide range, and peeling of the turnover paper 10a can be reliably prevented.

The following techniques can be adopted for the binding paper product 10 and the binding die 11 of the present invention. The present invention is applied to the binding of the calendar 10, but is not limited to the calendar 10, but may be applied to any binding paper products. A binding paper product 10 and a binding device in which a band-shaped uneven portion 14a formed over the entire length in the width direction of the binding paper product 10 and a plurality of spot-shaped uneven portions 14b arranged at intervals are separately provided. Constructing die 11 for alignment processing. Although the cross-sectional shapes of the concave and convex portions 14a and 14b are set to be a semicircular shape and a hemispherical shape, an arbitrary curved shape may be used instead. In that case, it is assumed that the cross-sectional shape is configured by a smooth curved surface shape that does not change the curvature sharply. In particular, the spot-shaped uneven portion 14
In the case of b, a design effect can also be obtained by using an arbitrary shape or a plurality of types of shapes. A plurality of uneven portions 14a are provided in parallel, and are formed in a wavy shape as a whole. The protrusions 12b and the protrusions 12c, the grooves 13b and the recesses 13c are formed in the integrated molds 12 and 13, respectively. Instead, as shown in FIG. Each of the portions 13b and 13c, or a plurality of convex portions 12b and 12c and concave portions 13b and
The molds 12 and 13 are divided for each 13c. The convex portions 12b and 12c and the concave portions 13b and 13c
As shown in FIG. 5, it should be formed in a plurality of stages. The use of ink as the adhesive substance is for turning paper 1.
In the printing process of Oa, the application of the adhesive substance can be performed simultaneously with the printing of the picture, so that the number of steps can be reduced. However, the present invention is not limited to this, and can be activated by heating and / or pressing. Use any adhesive.

[0016]

As described in detail above, in the bound paper product according to the first means of the present invention, the cross-sectional shape of the concave and convex portion formed by heating and pressurizing smoothly changes the curvature. The following effects can be obtained because of the curved surface shape constituted by: By effectively dispersing the pressing force along the concave and convex portions, it is possible to make the pressing force uniform over the entire region of the concave and convex portions, and it is possible to obtain a bound paper product that is difficult to peel. As a result, the strength and durability of the bound paper product can be improved. In the binding paper product according to the second aspect of the present invention, since the uneven portion is formed in a belt shape over the entire length in the width direction of the paper, the bending strength in the width direction is added to the effect of the first means. Is achieved. Further, the bound paper product according to the third means of the present invention,
Since the plurality of uneven portions are formed in a spot shape arranged at intervals on the surface of the paper, in addition to the effects of the first and second means, the pressing by the spot-shaped uneven portions having a small area is performed. By increasing the pressing force in the part and dispersing the irregularities on the surface of the paper, there is an effect that a wide range of reliable bonding can be realized. further,
According to a fourth aspect of the present invention, there is provided a binding die according to the present invention, wherein the convex part of the male mold and the concave part of the female mold, which form the concave and convex part, are formed by smoothly changing the curvature. Therefore, the following effects can be obtained. Since the pressing force applied to the paper can be effectively dispersed along the uneven portion, it is possible to prevent a locally excessive pressing force from acting on the paper, and it is possible to prevent the paper from being broken or the like. Stitched paper products can be manufactured. Since the frictional force between the mold and the paper is reduced, the durability of the mold can be improved.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view showing an embodiment of a binding paper product and a binding die according to the present invention.

FIG. 2 is a longitudinal sectional view showing a state in which paper is pressed by the mold of FIG. 1;

FIG. 3 is a perspective view showing a bound paper product formed by the mold of FIG. 1;

FIG. 4 is a longitudinal sectional view showing another embodiment of the binding die of FIG. 1;

FIG. 5 is a longitudinal sectional view showing another embodiment of the binding die of FIG. 1;

FIG. 6 is a longitudinal sectional view showing a conventional example of a binding die.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Calender (binding paper product) 10a Turning paper (paper) 11 Die (die for binding processing) 12 Male die 12b Projection (convex portion) 12c Projection (convex portion) 13 Female die 13b Groove (Concave part) 13c Concave part (concave part) 14a, 14b Irregular part

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int. Cl. ⁷ , DB name) B65H 37/04 B42D 5/04

Claims (4)

(57) [Claims] 1. A stapling paper product which is formed by applying a bonding material to a surface and applying pressure while heating and pressing a plurality of papers to bend the papers to form an uneven portion. A binding paper product, wherein a cross-sectional shape of the uneven portion is a curved surface shape formed by smoothly changing a curvature. 2. The bound paper product according to claim 1, wherein the uneven portion is formed in a band shape over the entire length of the paper in the width direction. 3. The binding paper product according to claim 1, wherein a plurality of uneven portions are formed on the surface of the paper in the form of spots arranged at intervals. 4. A method according to claim 1, further comprising the step of: providing a male mold and a female mold which are arranged with a plurality of sheets of paper to be superimposed on each other by applying an adhesive substance on a surface thereof, and heating the paper between the two molds. A binding die for binding while forming an uneven portion by pressing, wherein the convex portion of the male mold and the concave portion of the female mold forming the uneven portion smoothly change the curvature. A binding die having a curved surface shape formed by: