JP5929072B2 - Manufacturing method of upper bookbinding - Google Patents

Description

The present invention relates to a method of manufacturing the upper bound.

  In conventional upper bookbinding, signatures formed by folding paper sheets printed on multiple pages such as 16 pages and 32 pages with an offset printer or the like are superposed together with other signatures, and the backs of these signatures are bound with a string, and perfect binding. The main text is formed by binding with, for example. Therefore, the conventional method of top bookbinding is suitable for the production of books with a large number of pages, but the production of a book with a small number of pages and a book with a small number of copies is expensive and has a large material loss and is not suitable.

  Therefore, in recent years, there has been proposed a method capable of manufacturing a book having a high-class feeling similar to the conventional one while simplifying the manufacturing process of the conventional upper bookbinding.

  For this purpose, the body is formed by wireless binding, and when it is wrapped with a cover, an appearance is inserted between the body and the cover to make it look like a bound book (see, for example, Patent Document 1). , Apply the facings to both sides of the body of signatures, and temporarily fasten their backs with EVA (Ethylene Vinyl Acetate Copolymer) hot melt adhesive. There is a method in which the back is cut and a PUR (Poly Urethane Reactive) hot melt adhesive is applied to the back after the cutting and wrapped with a cover (for example, see Patent Document 2).

JP-A-8-282149 JP 2009-214430 A

  Since the conventional simplified bookbinding is a signature formed by folding a multi-sided printed paper such as 16 pages or 32 pages, it must be printed by a relatively large printing machine and not folded by a folding machine. Therefore, there is a problem that it is difficult to cope with print-on-demand. In addition, the conventional simplified bookbinding has a problem that it is difficult to put a finger on it and the operation of opening a page is troublesome because the fore edge is finished to a flat surface.

The present invention is that to provide a method for producing a binding on that can solve the above problems.

  In order to solve the above problems, the present invention employs the following configuration.

  In addition, although the code | symbol with a parenthesis is attached | subjected in order to make an understanding of this invention easy, this invention is not limited to this.

The invention according to claim 1 is a process of accumulating sheets (1a) printed and discharged by a sheet-fed printing press to form a text (1), and a start page side and an end page of the text (1). A step of adhering the facing (2, 3) to the side, a step of applying the PUR hot melt adhesive layer (5) to the back of the main text (1) and the facing (2, 3), and consolidating; Heating the lower-stiffened spine to give a round back of the convex curved surface and providing a fore edge of the concave curved surface to the text; forming a back-stiffened portion on the round back; and the text (1) and turnover (2, 3) are wrapped in a cover (4), and the turnover (2, 3) is bonded to the front cover (4a) and back cover (4b). Adopt manufacturing method.

According to the second aspect of the present invention, the sheet (1a) printed and discharged in a sheet-fed state by a sheet-fed printing machine and the sheet-like sheet-back (2, 3) are integrated to read the text (1) and sheet-back (2 , 3) a step of forming an aggregate, a step of applying a PUR hot melt adhesive layer (5) to the back of the above-mentioned aggregate, and consolidating it, and heating the consolidated back to form a convex curve Providing a round back of the surface and providing a fore edge of a concave curved surface to the aggregate, forming a back-stiffened portion on the round back of the aggregate, and wrapping the aggregate with a cover (4), A method of manufacturing an upper bound book including the step of adhering the facing (2, 3) to the front cover (4a) and the back cover (4b) is adopted.

According to a third aspect of the present invention, in the method of manufacturing an upper bookbinding according to the first or second aspect , the PUR hot melt adhesive layer (5) is formed up to a position over the back of the turnover (2, 3). Can be.

  According to the present invention, even if it is a book with a small number of pages or a book with a small number of copies, it can be manufactured easily and inexpensively as an upper bound book, and the fore edge of the text is a concave curved surface. Therefore, the page can be opened simply and quickly by putting the finger into the concave curved surface.

It is a perspective view of the upper bookbinding which concerns on Embodiment 1 of this invention. FIG. 2 is a cross-sectional view taken along line II-II in FIG. It is a flowchart which shows the procedure of the manufacturing method of the top bookbinding which concerns on this invention. It is explanatory drawing of a rounding out process. It is explanatory drawing of an earing process. It is sectional drawing similar to FIG. 2 of the upper bookbinding which concerns on Embodiment 2 of this invention. It is a flowchart which shows the procedure of the manufacturing method of the upper bookbinding which concerns on Embodiment 2 of this invention. It is sectional drawing similar to FIG. 2 of the upper bookbinding which concerns on Embodiment 3 of this invention.

  Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings.

<Embodiment 1>
As shown in FIG. 1 and FIG. 2, the upper bound book has two folded foldings 2 and 3 bonded to the first page side and the last page side of the text 1, and the text 1 and the facing books 2 and 3 are covered with a cover 4. It is configured by adhering the turning sheets 2 and 3 and the front cover 4a and the back cover 4b of the cover 4 together.

  The body 1 is composed of a stack of sheets 1a, and each sheet 1a is printed in a sheet state by a sheet printing machine (not shown) and discharged to a delivery unit in a bar stack state. The back of the aggregate of the sheets 1a is consolidated by an adhesive layer 5 made of a PUR (Poly Urethane Reactive) hot melt adhesive to form the text 1.

  A digital printer can be used as the sheet-fed printing press. There is no limitation on the type of printing method such as inkjet printing or electrostatic printing.

  It is desirable that the size of the sheet 1a to be printed by this sheet-fed printing machine is approximately the same as the size of a book. For example, JIS A column No. 4, B column No. 5, etc. Sheets 1a having such a size are printed and discharged by a sheet printing machine, and are stacked as a stack of bars. And the location corresponding to the back of the book is aligned in a vertical plane.

  A PUR hot melt adhesive, which is a type of hot melt adhesive, is applied to the vertical surface that forms the back of the main body 1 so that the back of the main body is solidified so that the sheet 1a is not separated from the main body 1. Is done. The PUR hot melt adhesive is a polyurethane-based reactive hot melt adhesive. Since this adhesive is used for lowering, the strength of the book is increased, and even if the book is repeatedly opened and closed, it becomes difficult for the back to crack and the page is difficult to separate.

  The back of the main body 1 can be processed to make it easy for the PUR hot melt adhesive to impregnate the back of each sheet 1a of the main body 1, such as by forming a number of fine cuts in advance. It is.

  Each turn 2 and 3 is formed by folding a sheet approximately double the size of the sheet 1a constituting the body 1 and is prepared as a pair to be bonded to the front and back of one booklet. As shown in FIG. 2, the vicinity of the folds of the turning 2 and 3 are bonded to the first page side and the last page side of the main body 1 through adhesive layers (not shown). As this adhesive, an emulsion adhesive such as a vinyl acetate resin emulsion adhesive, a water paste, or the like can be used.

  The adhesive layer 5 made of the PUR hot melt adhesive can be fastened on the back of the main body 1, but preferably extends from the back of the main body 1 to the position over the back and back of the main body 2 and 3. It is provided as follows. Thereby, the back of the main body 1 and the paybacks 2 and 3 is firmly performed.

  In this case, since the adhesion between the counters 2 and 3 and the text 1 is performed by the PUR hot melt adhesive layer 5, the application of the emulsion adhesive or the like can be omitted.

  The body 1 is provided with a round back with a convex curved surface and a fore with a concave curved surface. Thereby, the further appearance as an upper bound book is arranged. Further, the reader of the upper bookbinding can easily and quickly open the page by putting his finger into the concave curved surface of the forehead.

  A back-stiffened portion is formed on the round back of the text 1. The back-stiffened portion includes a coated paper 6 adhered to the back of the hot melt adhesive layer 5, a cold paper 7 adhered to the back of the coated paper 6, and a back paper 8 adhered to the back of the cold paper 7. Are formed.

  The coated paper 6 functions as a protective material that covers and protects the PUR hot melt adhesive layer 5 until the cold paper 7 is attached.

  The back paper 8 is stuck on the cold paper 7 with an emulsion adhesive or the like. The back paper 8 is not limited to a single paper, and a plurality of same types of paper may be laminated and used, or different types of paper such as kraft paper and cardboard may be laminated and used.

  By providing the back-stiffened portion, the strength of the back of the main body 1 is increased, and resistance to repeated bending and the like is improved. Moreover, the appearance as an upper bound book improves.

  In addition, although not shown in figure, you may stick the flower cloth (Hanagire) which decorates the upper and lower ends of the back of the book on the upper and lower ends of the back paper 8.

  The body 1 is wrapped by a cover 4 together with the turnings 2 and 3. Then, the turnings 2 and 3 are bonded to the front cover 4a and the back cover 4b with an emulsion adhesive, water glue or the like, whereby the main body 1 and the cover 4 are integrated. This adhesive is preferably solid-coated on the entire surface of the turnovers 2 and 3 facing the front cover 4a and the back cover 4b.

  It should be noted that the back-stiffened portion and the back cover 4c at the back of the main body 1 are not bonded, and a gap is provided between them.

  As the cover 4, a cover for upper bookbinding in which the front cover 4 a, the back cover 4 c, and the back cover 4 b are reinforced with a waist member such as a cardboard is used.

  In addition, ears are preferably formed on both sides in the thickness direction of the spine of the body 1 as shown in FIG. 2, and a groove 1b is formed at the boundary between the front and back covers 4a and 4b and the spine 4c. . The appearance of the upper bookbinding is further enhanced by the formation of the ears and the grooves 1b. Further, the opening / closing operation of the page is facilitated.

  Next, the manufacturing method of the above upper bookbinding will be described according to the flowchart of FIG.

  (1) First, a desired content is printed on a sheet 1a of a predetermined plate size by a sheet printer such as a digital printer, and the sheet is discharged to the delivery unit in a sheet state (step S1).

  (2) The printed sheet 1a is accumulated in a stacked state in the delivery unit of the sheet printing machine (step S2).

  If necessary, the main body 1 is superimposed on another sheet 1a accumulated in another stacked state.

  The spine of the text 1 made up of a stack of sheets 1a is arranged to form a vertical surface.

  (3) A PUR hot melt adhesive is applied to the vertical surface which is the back of the text 1 to form the adhesive layer 5 (step S3).

  With this PUR hot melt adhesive layer 5, the back of the text 1 is consolidated, and a large number of stacked sheets 1 a are integrated as the text 1.

  Before applying the PUR hot melt adhesive, a number of fine cuts are formed on the vertical surface of the back of the main body 1 so that the PUR hot melt adhesive can easily be impregnated into the fibers of the sheet 1a. Can be processed.

  Thereafter, the text 1 is left still. As a result, the PUR hot melt adhesive layer 5 applied and formed on the spine of the text 1 is solidified.

  (4) The folded portions 2 and 3 that are folded in half on the first page side and the last page side of the main text 1 are bonded with, for example, an emulsion adhesive (step S4).

  Note that the order of step S4 and step S3 can be reversed, and the PUR hot melt adhesive layer 5 can be formed on the back of the body 1 after the layers 2 and 3 are overlapped. As a result, the turning 2,3 and the main body 1 can be bonded by the PUR hot melt adhesive layer 5, and the application of the emulsion adhesive can be omitted. Further, by extending the PUR hot-melt adhesive layer 5 to a position over the back of the turnbacks 2 and 3, the bonding strength of the back of the main body 1 and the turnbacks 2 and 3 can be increased.

  (5) The text 1 to which the facing parts 2 and 3 are bonded is trimmed on the three sides of the top, the ground, and the forehead except for the back where the PUR hot melt adhesive layer 5 is formed (step S5). .

  (6) The cut back of the text 1 is rounded, the vertical surface of the back of the text 1 is a convex curved surface, and at the same time the vertical surface of the forehead of the text 1 is a concave curved surface ( Step S6).

  As shown in FIG. 4 (A), this rounding is first made by heating and softening the PUR hot melt adhesive layer 5 on the back of the text 1 by, for example, radiant heat from the heater 9, as shown in FIG. 4 (B). The body 1 is sandwiched between the front and back by the clamp 10, the cylindrical jig 11 is applied to the fore edge of the body 1, and pressed by the pressing jig 12 from the back side.

  (7) Subsequently, when the PUR hot melt adhesive layer 5 is soft or hard, it is heated again to be softened, and the ears are preferably formed on the spine of the rounded text 1. This is done, and substantially convex ears 1c are formed on both sides of the back of the body 1 (step S7).

  As shown in FIG. 5, the earing is performed by looking back at the rounded body 1 and sandwiching it with the earing clamps 13 and 13 together and pressing the roller 14 on the back. It is performed by rolling and reciprocating in the thickness direction of the main body 1. The PUR hot-melt adhesive layer 5 extends to a position where it goes over the back of the counters 2 and 3, and the wedge-shaped tip portion of the earing clamp 13 is adjacent to the edge of the PUR hot-melt adhesive layer 5. Abut. For this reason, as shown in FIG. 5, the back of the main body 1 spreads smoothly with the PUR hot melt adhesive layer 5 on both sides of the back without being broken by the pressing and rolling of the roller 14. An ear 1c is formed in the vicinity of the back.

  By this earing, the back of the main text 1 is firmly tightened, making it difficult to lose shape, making it difficult to stick out to the fore edge, and making it easier to open the page.

  (8) The coated paper 6 is pasted on the back of the main body 1 from above the PUR hot melt adhesive layer 5 with an emulsion adhesive or the like (step S8), and further the cold candy 7 is pasted on top of that with an emulsion adhesive or the like. (Step S9), and the back paper 8 is further stuck thereon by an emulsion adhesive or the like (Steps S10 and S11).

  The back of the main text 1 is solidified by the lamination of the coated paper 6, the cold paper 7 and the back paper 8.

  (9) At the same time when the back paper 8 is attached, a flower cloth (not shown) is attached to the top and bottom edges of the back of the text 1 as necessary. An emulsion adhesive or the like is used for attaching the flower cloth. By this flower cloth, the boundary between the sheet 1a and the PUR hot melt adhesive layer 5 is concealed in the top and bottom of the book (step S12).

  (10) An emulsion adhesive or the like is applied to the entire surface exposed outside the text 1 in the counters 2 and 3 attached to the text 1 (step S13).

  Then, the body 1 is wrapped with a cover 4 prepared separately, and the front cover 4a and the back cover 4b are attached to the facing sheets 2 and 3 bonded to the body 1 side (step S14).

  (11) Then, the ginkgo press is repeated several times from the spine 4c side, and a ginkgo type is given to the back of the book. Thereby, the upper bookbinding is completed.

<Embodiment 2>
As shown in FIG. 6, in the upper bookbinding according to the second embodiment, the double foldings 2 and 3 in the case of the first embodiment superimpose two paper sheets 2a, 2b, 3a and 3b, respectively. It is formed with

  The dorsal sides of the two-sided facings 2 and 3 are joined together by the PUR hot melt adhesive layer 5 and also joined to the main body 1 side.

  The PUR hot melt adhesive layer 5 extends to a position over the two-sided turnovers 2 and 3, thereby increasing the strength of the back of the main body 1.

  The upper bookbinding according to the second embodiment is manufactured by the procedure shown in FIG.

  That is, a desired content is printed on a sheet 1a of a predetermined plate size by a sheet printer such as a digital printer, and is discharged to the delivery unit of the sheet printer in a sheet state (step S1). . At this time, one turn 2 obtained by overlapping two sheets 2a and 2b is placed in advance in the delivery section. The printed sheets 1a are stacked in a stacked state on the turn 2 in the delivery section (step S2). Then, the other turn 3 is formed by stacking two sheets 3a and 3b on the stacked sheets 1a. As a result, an aggregate of the main text 1 and a few pieces is formed.

  Thereafter, the PUR hot-melt adhesive layer 5 is formed on the back of the aggregate, and the bottom is compacted (step S3). Further, as in the first embodiment, the bookbinding is performed through steps 4 to 14. The

  In addition, in Embodiment 2, the same part as Embodiment 1 is shown using the same code | symbol, and the overlapping description is abbreviate | omitted.

<Embodiment 3>
As shown in FIG. 8, in the book according to the third embodiment, unlike the paybacks 2 and 3 in the case of the first embodiment, the payback 15 made of one sheet of paper is used.

  The turn 15 is formed of a sheet of paper having a size extending over the front cover 4a, the back cover 4c, and the back cover 4b of the cover 4.

  The spine 15 is bonded to the emulsion adhesive or PUR hot melt adhesive layer 5. Then, the cold paper 7 and the back paper 8 are bonded in this order from the back of the turning 15 by an emulsion adhesive or the like. The coated paper 6 in the second embodiment can be omitted because it can be replaced with the back 15 in the third embodiment.

  In addition, an emulsion adhesive or the like is applied to the entire surface exposed outside the text 1 in the turn 2 and 3, and the body 1 is wrapped with a cover 4 prepared separately, and the front cover 4a and the back cover 4b are affixed to the turns 2 and 3. The bookbinding is completed.

  In addition, in Embodiment 3, the same part as Embodiment 1 is shown using the same code | symbol, and the overlapping description is abbreviate | omitted.

  In addition, this invention is not limited to the said embodiment, A various change is possible.

DESCRIPTION OF SYMBOLS 1 ... Full text 1a ... Sheet paper 2, 3 ... Look back 4 ... Cover 4a ... Front cover 4b ... Back cover 4c ... Back cover 5 ... PUR hot melt adhesive layer 6 ... Coated paper 7 ... Cold paper 8 ... Back paper

Claims (3)

  A step of accumulating sheets printed and discharged by a sheet-fed printing press to form a main body, a step of adhering a turnover to the start page side and the end page side of the main body, and A step of applying a PUR hot melt adhesive layer to the substrate and heating it to the bottom, and heating the lower back to give a round back of the convex curved surface, and a step for applying a concave curved surface to the body. And a step of forming a back-stiffened portion on the round back, and a step of wrapping the body and the facing with a cover and bonding the facing and the front and back covers. Manufacturing method.   A process of accumulating sheets and sheet-like prints printed and discharged in a sheet-fed state by a sheet-fed printing machine to form a text and a face-up stack, and a PUR hot melt adhesive layer on the back of the stack A step of applying and solidifying, a step of heating the back of the solidified to give a round back of a convex curved surface and a fore edge of a concave curved surface to the integrated body, A method of manufacturing an upper bound book, comprising: a step of forming a back-stiffened portion on a round back; and a step of wrapping the aggregated body with a cover and bonding the turn-back to the front and back covers. 3. The method of manufacturing an upper bookbinding according to claim 1 or 2 , wherein the PUR hot melt adhesive layer is formed up to a position overcoming the turnback.

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