JPH09240166A - Bookbinding machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent degradation of the quality of paste by shaping the paste like a tape, for storage and by separating the paste and water from each other. SOLUTION: An unused tape 30 is constituted of paste 31, a base 32 and a separate layer 33 which separates the paste 31 and the base 32 from each other after the tape is used. The unused tape 30 is coated with water by a water applying roller 22 and let out by the height of paper sheets by a winding device 23. The tape let out is pressed against the lateral side of the paper sheets by a presser roller 24 formed by winding sponge on a roller made of a metal. The presser roller 24 moves up and down by the height of the paper sheets. When the paste is applied, warm air is blown from a drier 25 so as to dry the paste 31. When the paste 31 is dried, bookbinding is conducted. By arranging a plurality of sets of the unused tapes 30, reels 21, the water applying rollers 22, the presser rollers 24 and the winding devices 23 in a row for the paper sheets 11, the back of the paper sheets 11 can be pasted in the shape of a plurality of rectangles.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is a bookbinding for the purpose of reducing the quality of the glue and using a minimum amount of water by storing the glue in a tape form and storing the glue and water separately (separately). It is about machines. The book in the present invention is mainly a booklet, but it may be a normal book.

[0002]

2. Description of the Related Art The use of hot melt adhesives for bookbinding of books, periodicals, booklets, etc. has grown rapidly over the last ten years. This is due to the increased production of low-cost paperback books. The process of complete gluing changed the way of bookbinding, where the back of the book was fastened with metal fittings, sewn with threads and glued together. Hot melt adhesives are ideal for this process and have seized this market. Basically, all paperback books are made of hot melt adhesive. The applications of hot melt adhesives are now widespread for the production of catalogs, phone books and many commercial and consumer publications. As a hot-melt adhesive for bookbinding, a mixture of ethylene-vinyl acetate copolymer (EVA), rosin ester, paraffin wax and microwax is often used.

In a conventional bookbinding machine, hot glue as described above or an aqueous glue (adhesive) based on a rubber latex and a resin emulsion is used as the glue, and such liquid glue is used in a tank or an ink pan. I applied it to the spine of a book (booklet) while putting it in another container.

[0004]

However, in the case of a hot melt such as a conventional ethylene-vinyl acetate copolymer (EVA), it takes a long time to apply heat until it melts and a flammable wax is mixed. However, there are problems such as the handling is dangerous and the glue tank is difficult to clean.

Further, in the case of water-based glue placed in a container such as an ink pan, the drying time after application is long, and
When left for a long time, there are problems that the water evaporates and the paste becomes hard and cannot be applied, and the quality of the paste deteriorates.

[0006]

The point of the present invention is to solve the above problems by storing the adhesive in a tape form and storing the adhesive and water separately (separately) to reduce the quality of the adhesive. The present invention relates to a bookbinding machine intended to use a minimum amount of water.

That is, in order to achieve the above-mentioned object (problem), the present invention provides a "clamping portion for fixing a sheet of paper to be a booklet (book), a gluing portion for applying glue with a tape-shaped release paper, and a glue. A bookbinding machine, which comprises a drying section for drying the machine and a control section for controlling the entire apparatus. ] Means are taken.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a bookbinding machine of the present invention will be described with reference to the drawings. FIG. 1 is a sectional view (side view) showing a gluing portion and a clamp portion of a bookbinding machine of the present invention. FIG. 2 is a schematic sectional view showing an example of an unused tape in the bookbinding machine of the present invention. FIG. 3 is a schematic perspective view showing an example of a state of bookbinding by the bookbinding machine of the present invention.

In FIG. 1, a clamp unit 1 fixes a sheet of paper 11 to be bound. The paper is set on the lower plate of the clamp unit 1. At this time, the gluing side of the paper is aligned with the edges and faces the gluing section. The upper plate of the clamp part 1 moves up and down, and when fixing the paper, it is lowered and stopped at an appropriate position to fix the paper. When opening the paper, the upper plate rises to open the paper.

The gluing part 20 is a wound unused tape 3
0, a reel 21 for supporting water, a watering roller 22 for applying water to the tape, a winding device 23 for winding up the used tape, a pressing roller 24 for pressing the rewetted adhesive against the paper, and a paper applying device. Dryer 25 for drying glue
It is composed of

FIG. 2 is a sectional view of the unused tape 30.
The unused tape 30 includes a paste 31, a base material 32, and a release layer 33 that separates the paste 31 and the base material 32 after the tape is used.

As the substrate, paper, plastic sheet,
A plastic film is used. Here, as the paper, kraft paper, thin paper printing paper, fine paper, art paper, fine coated paper, medium coated paper, gravure paper, high-grade printing paper,
Copy paper, photosensitive paper, foam paper, PPC paper, recording paper, synthetic paper, or a laminate of these can be used arbitrarily. As the plastic, various known thermoplastics and thermosetting plastics are used.

A peelable silicone represented by a film of dimethylpolysiloxane is used as the peeling layer.

As the paste 31 applied to the surface of the release layer, an aqueous paste is preferable from the environmental viewpoint, but an organic solvent-based paste may be used.

Examples of the aqueous paste include polyacrylic acid and poval, as well as starch, dextrin, casein and protein paste (adhesive), polyvinyl alcohol (PVA), polyvinyl acetate emulsion, and acrylic polymer aqueous emulsion. Various emulsions (dispersions produced by emulsion polymerization, which are used in the form of a solid resin dispersed in water) are used.

Polyvinyl alcohol exhibits good adhesion to cellulosic substrates such as paper. In addition, when added to the polyvinyl acetate emulsion, it acts as a moisturizing agent for slowing the volatilization of water and prolongs the open time of the adhesive (glue) film.

Particularly, partially saponified polyvinyl alcohol is
Increases the hygroscopicity of the adhesive film,
It is useful as a rewet type adhesive (glue). The partially saponified type resin is used for previously emulsifying with an organic solvent and adding it to an emulsion type adhesive.

As the organic solvent-based glue, acrylic adhesive, natural rubber adhesive, butyl rubber / polyisobutylene adhesive, phenol resin adhesive, amino resin adhesive, epoxy resin adhesive, polyurethane adhesive, cyanoacrylate adhesive Agents etc. are used.

Next, the operation of the apparatus will be described. Clamp part 1
Secure the paper to. The unused tape 30 is the watering roller 2
Water is applied at 2 and is wound up by the winding device 23 by the height of the paper. The tape fed out is a pressing roller 24 formed by winding a sponge around a metal roller on the side surface of the paper.
Can be suppressed. The pressing roller 24 moves up and down by the height of the paper. When the glue is applied, warm air is blown from the dryer 25 to dry the glue.

When the glue is dried, it is bound into the state shown in FIG.
Unused tape, reel, watering roller, pressure roller,
By arranging a plurality of winding devices and the like in parallel with the paper, it is possible to attach a plurality of rectangular glues to the spine of the paper. The used tape is wound up by the winding device 23. A publicly known control device may be appropriately used as a control unit for controlling the operation of the entire device.

Next, each of the other materials will be described.
As the paper, thin paper, high-quality paper, art paper, high-quality coated paper, medium-coated paper, gravure paper, high-grade printing paper, copying paper, photosensitive paper, foam paper, PPC paper, thermal paper, pressure-sensitive (no Carbon) paper, recording paper, synthetic paper or a laminate of these can be used arbitrarily.

As the clamp portion, various metal plates, cast plates, wood plates and resin plates other than iron plates can be preferably used.

[0023]

EXAMPLES Examples will be described in detail.

Example 1 A virgin tape was prepared by sequentially forming a release layer and a paste on a biaxially stretched polyethylene terephthalate (base material) having a thickness of 26 μm by a gravure printing method. Dimethyl polysiloxane was used as the release agent. The paste used was a mixture of polyacrylic acid, poval, and starch.

As shown in FIG. 1, a sheet is set on the lower plate of the clamp section 1. At this time, the gluing side of the paper is aligned with the edges and faces the gluing section. The upper plate of the clamp unit 1 is lowered and stopped at an appropriate position to fix the paper.

On the other hand, the above-mentioned wound unused tape 30
A reel portion 21 for supporting the tape, a watering roller 22 for applying water to the tape, and a used tape winding device 23.
And the pressing roller 2 that presses the re-moistened glue on the paper.
4 and a drier 25 that dries the glue applied to the paper with warm air constitute the glue part 20.

The side surface of the sheet thus fixed is glued by the glue unit 20 as follows. The unused tape 30 is coated with water by the water coating roller 22, and is wound up by the winding device 23 by the height of the sheet. The fed-out tape is pressed against the side surface of the paper by the pressing roller 24. The pressing roller 24 moves up and down by the height of the paper. When the glue is applied, warm air is blown from the dryer 25 to dry the glue. When the glue dries, the clamp part is loosened and the bookbinding is performed as shown in FIG. The used tape is wound up by the winding device 23.

[0028]

EFFECTS OF THE INVENTION According to the bookbinding machine of the present invention, in the case of the conventional hot melt, it takes a long time to apply heat before melting, the handling is dangerous, and the glue tank is difficult to clean. There is no problem.

Further, in the case of the water-based paste placed in the conventional ink pan, the problems such as long drying time and evaporation of water when left for a long time have been eliminated.

By storing the paste in a tape form and storing the paste and water separately (separately), the problems of the prior art were solved, the quality of the paste was lowered, and the minimum necessary water was used.

[Brief description of drawings]

FIG. 1 is a schematic cross-sectional view showing an example of gluing in a bookbinding machine of the present invention.

FIG. 2 is a schematic cross-sectional view showing an example of an unused tape in the bookbinding machine of the present invention.

FIG. 3 is a schematic perspective view showing a state of bookbinding by the bookbinding machine of the present invention.

[Explanation of symbols]

 1 Clamping Part 11 Paper 20 Gluing Part 21 Reel 22 Watering Roller 23 Winding Device 24 Pressing Roller 25 Dryer 30 Unused Tape 31 Adhesive 32 Base Material 33 Release Layer 43 Booklet (Book)

Claims (2)

[Claims] 1. A bookbinding machine for bundling sheets and pasting them to a spine, wherein the glue is in the form of a tape. 2. A clamp section for fixing a sheet of paper to be a booklet, and a gluing section for applying glue with tape-shaped release paper,
A bookbinding machine comprising a drying section for drying glue and a control section for controlling the entire apparatus.