JP2010105372A - Booklet-like printed matter group, manufacturing method of booklet-like printed matter group and assessment method of binding adhesion of booklet-like printed matter group - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a bound booklet formed by set paste bookbinding capable of being easily and exactly obtained without needing additional numbers of processing steps, and a manufacturing method of continuously manufacturing the bound booklet formed by set paste bookbinding capable of easily and exactly obtaining the same shape bound booklets and the same shape state bound booklets of plural kinds to plural combination pages, simultaneously, and to further provide the assessment method of booklet-like printed matter for easily evaluating the set paste and aqueous ink to be used for such a continuously manufacturing. <P>SOLUTION: In the booklet-like printed matter group, the set paste 5 is applied to the binding end side of one end common of each sheet in the state that the plural sheets for constituting each booklet are sequentially overlapped to the binding end side of common one end of each sheet. A printing band 4A printed by aqueous ink 4 of specific color is formed simultaneously with document contents by digital data printed on the region provided in a predetermined width from the binding end side of common one end of each sheet. Thus, the printing band forming part is made as a low attaching angle part lower than attaching sheets of the booklets between the booklets, and the set paste is reacted only at the low attaching angle part, and is stuck. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a booklet-like printed matter produced by a digital printing machine, a booklet-like printed matter group composed of a plurality of booklet-like printed matter, a method for manufacturing the booklet-like printed matter group, and a method for evaluating the binding of the booklet-like printed matter.

  For example, pressure-sensitive recording materials such as copy forms (forms) usually have upper paper and lower paper stacked so that the color former layer and developer layer face each other, and upper paper and lower paper as necessary. Insert a few sheets of medium paper between the color developer layer and the developer layer so that they face each other and make one set. Multiple sets are stacked and the side (one end side) is set glue (or It is manufactured as a booklet-like printed matter in the form of a laminate that is glued with a separate agent.

Also, when manufacturing printed materials for booklets using pressure-sensitive recording materials, in order to make it easy to separate one set (one form) from the laminate, between the upper and middle sheets in one set and The adhesion between the middle sheet and the lower sheet is the adhesion between the sheets, that is, between the surface of the upper sheet that is not provided with the coloring layer and the surface of the lower sheet that is not provided with the developer layer. It is glued to be larger. This technique is widely known in the printing industry as seen in patent documents (see, for example, Patent Document 1).
JP-A-10-852

  However, this technique can be used only when pressure-sensitive paper is used, and cannot be used in booklet production such as high-quality paper or pressure-sensitive paper and high-quality paper, and requires additional processing steps. .

  On the other hand, with the advancement of digital printing technology, document data such as print data is organized in advance in order for each page of each leaf in order to produce a booklet-like printed material with different character designs on each leaf. Although the possibility of page organization at the stage has come to be known, there is a demand for a technique that makes use of the freedom of digital data processing of page organization in the bookbinding method itself.

  Therefore, an object of the present invention is to provide a bound booklet by set glue binding that can be obtained easily and reliably without requiring additional processing steps even in a booklet including paper other than pressure-sensitive paper. It is another object of the present invention to provide a bookbinding method for continuously producing a booklet of the same shape with a plurality of types or a plurality of combination pages simultaneously. It is another object of the present invention to provide a method for evaluating a booklet-like printed matter that easily evaluates set glue and water-based ink to be used for such continuous production.

In order to solve the above problems, the following means (1) to (6) are taken.
(1) The booklet-like printed material group of the present invention is a booklet-like printed material group comprising a plurality of types of booklets in which different document contents are digitally printed on at least some pages.
A plurality of sheets constituting each booklet are stacked in page order after each printing,
And with multiple sheets of paper stacked in the order of the booklet,
The set glue 5 is applied to the binding edge that is one end common to each paper, and a plurality of books are back-stitched simultaneously,
Between the pages of each booklet, a print band 4A printed with a specific color water-based ink 4 is formed at the same time as the document contents by digital data printing in an area provided with a predetermined width from the edge of the binding.
The printing band 4A forming portion between the pages of each booklet is a low contact angle portion lower than between the contact sheets between the booklets,
The set paste 5 is characterized in that it is thrown in response to only the low contact angle portion.

  In the case of the above, since the print band 4A is formed simultaneously with the document contents by digital data printing, the number of processes is less than sandwiching the process of forming only the print band 4A in order to throw the set glue 5. It can be manufactured more efficiently. Further, the set glue 5 is thrown only between the papers between the pages to be the “low contact corners”, and is not thrown between the papers between the booklets that are not the “low contact corners”. Without fail, each booklet is securely bonded.

(2) In the booklet-like printed material 10 constituting the booklet-like printed material group,
The low contact angle portion between each page of the booklet is such that the total contact angle of the printing band 4A on each sheet in contact is lower than the critical value of the predetermined contact total contact angle,
The set glue 5 is preferably one that reacts and throws only between sheets whose critical total contact angle is less than or equal to the critical value.
The value of the total contact angle determines whether or not the throwing adhesion is performed depending on the type of the constituent paper and the set glue 5, and the criticality of whether or not the throwing adhesion is possible is determined as “total contact angle critical”. For example, in the embodiment described later, the total contact angle criticality is 180, and the total value of the contact angles of the contact sheets constituting the pages of each booklet is larger than 180, which is the total contact angle critical (a certain safe difference). And the sum of the contact angles of the abutting sheets constituting between different booklets is required to be higher than 180 which is the total contact angle critical.

(3) In the booklet-like printed material 10 described above,
Any paper other than the printing band paper 1 constituting the booklet is a pressure-sensitive paper in which a color former layer 2c or a surface developer layer 2d is formed in the binding region,
It is preferable that the set glue 5 is thrown through the cut end C in response to the color developer layer 2c and the surface developer layer 2d lower than the contact angle criticality.

  (4) In any of the booklet-like printed materials 10 described above, the water-based ink 4 preferably includes a yellow pigment and a sulfonic acid derivative.

(5) Moreover, the manufacturing method of the booklet-like printed material group of the present invention includes:
A printing step of printing the print document data of each page together with the print band 4A;
A laminating step of laminating a plurality of sheets;
A cutting step of cutting at a predetermined spelling edge;
A set glue injecting step for injecting the set glue 5 from the laminated side surface of the cut end edges;
The set glue 5 is thrown only in the joining area between the contact sheets,
The set glue 5 is not thrown in the non-bonded area that does not have the bond area between the contact sheets.
A plurality of booklet-like printed materials 10 are continuously formed by set glue binding.
In the printing step,
A document data area for storing print document data for each page for each booklet of the booklet group;
A print band data area for collectively storing print band data (4A1, 4A2,...) Of only the print band 4A constituting the low contact angle portion;
A printing machine having an information section in which a print order and a book order data area for storing the contents of print documents of the constituent pages of each booklet constituting the booklet group and the order of the booklets constituting the booklet group are stored. With digital data printing,
-Based on the printing order and booklet order data area, in order from the upper sheet of the booklet group, the document data of the corresponding page in the document data area is called with the printing target page as the corresponding page,
・ Recognize whether the corresponding page is paper between pages of a booklet or paper between booklets,
When it is recognized that the paper is between pages of the booklet, print image data of the corresponding page is formed by combining the called document data and the print band data (4A1, 4A2,...)
When it is recognized that the paper is between pages of a booklet, the print image data of the corresponding page is formed only by the called document data not including the print band data (4A1, 4A2,...)
The print image data is repeatedly formed for each corresponding page in order from the upper sheet of the booklet group, and the print image data is printed for each corresponding page.

  The stacking step includes both an automatic stack function following continuous sheet cutting by a printer and a collation by an automatic control collator.

(6) Moreover, in the manufacturing method of the booklet-like printed material group of the present invention,
The print band data area stores a plurality of types of print band data (4A1, 4A2,...) Corresponding to the set glue 5 to be used or the paper to be used with respective identification symbols attached thereto. And
In the printing step, the printing press
If you recognize that the paper is between pages of a booklet,
Call the print band data (4A1, 4A2,...) With the identification symbol corresponding to the set glue 5 or the paper to be used for each corresponding page,
It is preferable that print image data of the corresponding page is formed by combining the called document data and the called print band data (4A1, 4A2,...).

(7) And the evaluation method of the spelling adhesion of the booklet-like printed material group of the present invention is:
A plurality of sheets constituting the booklet are in contact with each other in order and cut at a predetermined binding edge, and the sheets constituting the booklet are bonded to each other with a set glue 5 in a joining area provided with a predetermined width from the binding edge. A method for evaluating the binding of a booklet-like printed material 10,
Any one of the sheets is printed with water-based ink 4 of a specific color, and a printing band 4A is formed in the joining region, and the printing band sheet has a lower contact angle lower than the sheet surface contact angle other than the printing band 4A. 1 and
Obtaining a total value of contact angles in the combined area of each set of contact sheets in the booklet;
Determining the critical value of the contact total contact angle at which the set glue 5 injected from the cut end C reacts;
Obtaining a difference between the total value of the contact angles in the coupling region and the critical value of the contact total contact angle to which the set glue 5 is reactively cast,
Whether or not the booklet-like printed matter 10 is suitable for the spelling adhesion is evaluated based on the difference value.

  By taking the above-described means, it is possible to easily and surely obtain a bound booklet by set glue binding without requiring additional processing steps even in a booklet including paper other than pressure-sensitive paper. Further, by making use of the degree of freedom of digital data processing for page organization in the bookbinding method itself, it has become possible to continuously produce the same-shaped bound booklet of a plurality of types or a plurality of combination pages simultaneously. Further, the set paste 5 and the water-based ink 4 to be used for such continuous production can be easily evaluated.

  The inventors have come up with the invention of set glue binding using paper other than pressure-sensitive paper due to the fusion of the set glue and the water-based ink in digital printing ink. Specifically, we succeeded in greatly advancing the set bookbinding technology by realizing the same conditions as the adhesive suitability of the adhesive surface of pressure-sensitive paper by high-quality paper that is not pressure-sensitive paper by digital printing with aqueous pigment ink.

The booklet-like printed matter 10 of the present invention uses rectangular pressure-sensitive paper as a base material and ink-jet printer paper (IJ paper) that can be digitally printed by a water-based ink-use IJ printer that is not pressure-sensitive paper, and appropriately selects the base material type. Select two or more sheets and make a booklet with one side as the combined side. As its basic configuration,
It is assumed that the bonding adhesion part of the opposing surface of each leaf selected in the page configuration order satisfies the conditions described on the right according to the following case classification.
-Pressure developer paper surface or color developer surface: Absorber ink application can be omitted.
When the pressure sensitive paper is neither the developer application surface nor the color developer application surface: Absorbent ink application, applied absorbent ink surface contact angle / absorbent ink non-application surface contact angle <0.90.

  In the joining region along the binding edge F of the arbitrary paper, a water-based IJ ink having a predetermined contact angle smaller than the paper surface contact angle is adhered to form a printing band 4A, and the set glue thrown in response to the predetermined contact angle 5 is glued in the joint area. At this time, as the water-based ink 4 printed on the printing band 4A, by selecting one containing both a yellow pigment and a sulfonic acid derivative, the contact angle of the printing band 4A is adjusted, and the sheet facing the booklet The total contact angle is set to a predetermined value or less. For example, in the case of a booklet including pressure-sensitive paper, the contact angle of the printing band 4A with the water-based ink 4 is set to be the same as the contact angle of the pressure-sensitive paper.

(Contact angle data of set glue binding)
The following facts were confirmed by analyzing the set glue binding using pressure sensitive paper as the prior art. Here, oil-based inks usually used in conventional printing are excluded because they cannot basically improve hydrophilicity.

（セット糊製本の接触角条件）
次に、セット糊製本を多数の試料と試験により、セット糊製本として、積層用紙間の接着にいたる場合と接着しない場合の条件を探った結果、以下のセット糊製本条件を得た。
・セット糊製本条件：吸収剤塗布面接触角／基材用紙面接触角 ＜０．９０
感圧紙と上質紙の組合せによる冊子様印刷物１０の製本を感圧紙セット糊製本を使うことによって合理的な感圧紙複合伝票製造方法が実現した。さらに、上質紙の冊子製造において、個別受取人向け個別ドキュメントで文字絵柄の個別性と頁数そのものの個別性も連続生産としてデータソートによる量産を可能とした。また、発明によるセット製本を別種の製本方法、例えば針金綴じ製本の前処理として採用することによって乱丁、落丁防止といった品質保証上の大きな効果を得ることができる。

(Contact angle conditions for set glue binding)
Next, as a result of searching for a set glue bookbinding by a number of samples and tests, the following conditions were obtained as a set glue bookbinding.
-Set glue binding conditions: Absorbent application surface contact angle / base paper surface contact angle <0.90
A rational pressure-sensitive paper composite slip manufacturing method was realized by using the pressure-sensitive paper set glue binding for booklet-like printed material 10 binding by a combination of pressure-sensitive paper and fine paper. Furthermore, in the production of high-quality paper booklets, individual documents for individual recipients can be mass-produced by data sorting as individual production of characters and pictures and individuality of the number of pages itself. Further, by adopting the set bookbinding according to the invention as a pre-treatment for another kind of bookbinding method, for example, wire binding bookbinding, it is possible to obtain a great effect on quality assurance such as the prevention of misprints and missing pages.

(Example of suitable digital printer and ink)
Examples of suitable digital printers and inks are shown. A preferable example is selection of an ink that can satisfy set glue binding conditions on a digital printing machine that is suitable for printing on high-quality paper. As a selection example, it was found that Dainippon Screen Mfg. Co., Ltd. TPJ520 and Epson water-based pigment type ink, which are industrial inkjet digital printing machines, are satisfied. However, even in this case, it is not easy to use any color ink, and it has been found by the theory of the invention that only a yellow ink containing a sulfonic acid derivative is a suitable result (see Table 1).

  An embodiment using the preferred printing system will be described in detail with reference to FIGS. 2, 3, 4 and 5. FIG. This case is an example of random binding in which the number of pages is controlled.

  The printing referred to in this application is a concept including both conventional printing and digital printing, and the printed matter includes both conventional printed matter and digital printed matter. The document means an information collection (data file or printed matter) in which information is edited so that “viewing by visual recognition” is possible. Set glue bookbinding is a bookbinding method in which a set of slips of pressure-sensitive paper (pressure-sensitive paper) known as set glue bookbinding is bonded with a binding edge.

  The booklet-like printed material group of the present invention includes a base material other than pressure-sensitive paper having an adhesive-absorbing surface printed by digital printing, and a plurality of booklet-like printed materials using set glue binding for bonding. 10 are manufactured simultaneously.

The booklet-like printed matter 10 of the present invention is a combination in which a plurality of sheets constituting a booklet are in contact with each other and cut at a predetermined binding edge, and the sheets constituting the booklet are provided with a predetermined width from the binding edge. The set glue 5 is bonded in the region, and a plurality of books are continuously formed at the same time, and has the following basic configuration.
Any one of the sheets is printed with a specific color water-based ink 4 so that the print band 4A is formed in the combined region, and the print band has a lower contact angle lower than the sheet surface contact angle other than the print band 4A. Paper 1.
-"Total contact angle critical", which is the total value of the contact angles in each coupling region of a set of contact sheets in the booklet, is lower than the predetermined contact total contact angle critical value,
A set glue 5 that reacts and casts only in the contact angle portion lower than the critical value of the contact total contact angle is interposed in the coupling area between the cut edge C and the sheet.

(Print belt 4A)
The printing band 4A has a predetermined low contact angle lower than the other sheet surface contact angle, and the contact angle sharply increases from the printing band 4A toward the sheet surface at the inner end opposite to the cut end C. A critical contact angle is formed.

(Water-based ink 4)
When the aqueous ink 4 containing a yellow pigment and containing a conductive sulfonic acid derivative was used as the aqueous ink 4 applied to the printing band 4A, preferable wettability could be secured. Specifically, when the water-based ink 4 containing a sulfonic acid derivative is a yellow pigment, the value of the contact angle of the printing band 4A is 67.3 to 81.3, compared with the case of cyan, magenta, and black pigments. It decreased with a high difference of about 20 or more (see Table 1). This is presumably because the wettability changed greatly compared to the case of other colors due to the synergistic action of the conductivity of the sulfonic acid derivative and the yellow pigment.

(Contact angle)
The contact angle in the present invention is defined as a concept defined by a measurement method below.
Wettability test (θ / 2 method)
Contact angle meter Kyowa Interface Chemical Co., Ltd. CA-VP type droplet: Purified water Liquid volume: 5.0 μL
Temperature: 24 ° C Humidity: 55%
Waiting time: 1 sec and 10 sec 2 types

(Total contact angle criticality)
In the above, the wettability of the opposing surface in the printing band 4A with the water-based ink 4 is controlled by the “total contact angle critical” which is the value of the total contact angle of the contact surface. By controlling the angle within a range lower than a predetermined critical value, it is possible to ensure that the set glue 5 is thrown into the bonding area.

The predetermined total contact angle criticality is, for example, an upper limit of 180 (degrees) in the above-described embodiment, and good anchoring adhesion cannot be achieved at 180 (degrees) or more.
The upper critical limit for reliable realization is preferably at least 175 (degrees). More specifically, if the total contact angle of contact is 100 (degrees) to 175 (degrees), it has suitable wettability, and it is preferable that the contact angle is further within the range of 140 to 150 (degrees).

(Contact angle criticality)
In the printing band 4A, a contact angle critical point where the contact angle suddenly increases from the printing band 4A toward the sheet surface is formed at the inner end opposite to the binding edge. In response to a contact angle portion lower than the contact angle critical, a throwing intervention is provided in the coupling region.

  In the case described above, the contact angle criticality is formed at the boundary between the printing band 4A and the inner paper surface, so that the set glue 5 injected from the cut end C is in contact with the bonding area. Throwing is performed only up to the angle criticality, and the contact angle critical is exceeded and the portion other than the printing band 4A is not easily thrown. At this time, the set glue 5 reacts with the contact angle portion lower than the contact angle critical and is thrown only into the bonding region, and is not easily thrown into the high contact angle portion exceeding the contact angle critical.

  That is, among the contact sheets in the booklet, the sheet on which the print band 4A is formed has a contact angle in the combined area that is a predetermined value or more than the contact angle of the normal sheet surface other than the combined area with the inner edge of the print band 4A as a boundary. The critical transition with the difference of.

  Alternatively, the total value of the contact angles in the combined area of each of the set of contact sheets in the booklet is set lower than the total value of the contact angles in the non-bonded area inside the combined area. The contact angle is set higher than the critical value of the contact total contact angle with a difference equal to or greater than a predetermined critical difference value.

  In the examples described later, it is determined that it is preferable that the difference between the sheets is greater than the difference between the contact angle in the printing band 4A and the contact angle in the other non-bonded region. Also, it is judged that the difference between the combined contact angle and the non-bonded region is more than 30 as the difference in total contact angle (both 5.0 μl of purified water droplets at a temperature of 24 degrees and a humidity of 55%). , According to the measurement results of the wettability test with a waiting time of 1 second and 10 seconds).

(Density adjustment of printing band 4A)
It is also possible to adjust the degree of anchoring of the set glue 5 on the bonding area by adjusting the density of the printing band 4A or selecting one of the necessary printing bands 4A from a plurality of printing bands 4A having different densities. Thereby, it becomes possible to adjust the binding force of the spelling edge of the booklet.

  (A mixture of pressure-sensitive papers) Any paper other than the printing band paper 1 constituting the booklet-like printed material 10 is a pressure-sensitive paper in which the color developing layer 2c or the surface developer layer 2d is formed in the bonding region. It can be. In the pressure-sensitive paper, the set glue 5 is thrown through the cut edge C in response to the color developer layer 2c lower than the contact angle critical and the surface developer layer 2d. Even if the printing band 4A is not formed, the contact angle can be adjusted by the color former layer 2c or the surface developer layer 2d, and the printing band 4A is not necessarily formed on the pressure sensitive paper.

  In other words, the sheet set facing the other sheets as the middle sheet of the booklet is either pressure-sensitive sheet or printing band sheet 1, and the bonding region includes the group of printing bands 4 </ b> A, the color former layer 2 c and the surface developer. It is composed of any one of a set of the layer 2d, a set of the printing band 4A and the color former layer 2c, and a set of the printing band 4A and the surface developer layer 2d.

  Possible embodiments include those in which the front or back paper is plain paper and some middle paper groups are made of pressure-sensitive paper. In this case, the group of the color former layer 2c and the surface developer layer 2d is a normal pressure-sensitive paper set, and the set including the printing band 4A is provided on the front side or the back side of the booklet having the pressure-sensitive paper as the middle paper. The front cover / front cover group or the back cover / back paper group to be arranged, and the paper that contacts the front cover / front cover group or the back paper / back paper group is the surface of the pressure-sensitive top paper 21 or the back surface of the pressure-sensitive bottom paper 23. In this case, the contact surface of the pressure sensitive paper is also included.

(Method for producing booklet-like printed material 10 of the present invention)
The method for producing the booklet-like printed matter 10 of the present invention is a method for simultaneously producing a plurality of booklet-like printed matters 10 as described above,
A printing step of printing a print document including the print band 4A together with other print parts;
A laminating step for laminating a plurality of sheets;
A cutting step of cutting at a predetermined spelling edge;
A set glue injection step for injecting the set glue 5 from the laminated side surface of the cut end edges in order;
In the set glue injection step, the set glue 5 is thrown only in the joining area between the abutting sheets, and the set glue 5 is not thrown in the non-joining area having no joining area between the abutting sheets.
A plurality of booklet-like printed materials 10 are continuously formed by set glue binding.

(Lamination step)
The stacking step may be either an automatic stacking function following continuous sheet cutting by a printer, or a collation performed by an automatic control collating machine or the like. That is, in the case of all the same paper types, this step is achieved mechanically efficiently simply by the sheet cut discharge function and stack function by the printer. Even if different document data is included in each booklet, as long as they are all of the same paper type, print image data is created by appropriately reading multiple types of digital data of this manufacturing method from one base paper roll. Printing with the print image data created in order from the top sheet of the printed material group, cutting the sheet for each sheet and continuously ejecting them eliminates the need for conventional collation or cutting of the binding edge F by a collating machine. .

  In addition, when different types of paper are included in any booklet, it is necessary to print / stack each paper type and collate it appropriately. The term “stacking step” includes performing this necessary collation after stacking.

  If any one of these booklets contains different types of paper, and the number of pages of any one of the booklets that make up the printed material group is different, the stack cannot be simply mechanically collated. A system is used in which a bar code unique to a page is put in the sheet and the automatic control collation is performed while reading the barcode.

(Printing step)
In the printing step,
A document data area for storing print document data for each page for each booklet of the booklet group;
A print band data area for collectively storing print band data (4A1, 4A2,...) Of only the print band 4A constituting the low contact angle portion;
A printing machine having an information section in which a print order and a book order data area for storing the contents of print documents of the constituent pages of each booklet constituting the booklet group and the order of the booklets constituting the booklet group are stored. With digital data printing,
-Based on the printing order and booklet order data area, in order from the upper sheet of the booklet group, the document data of the corresponding page in the document data area is called with the printing target page as the corresponding page,
・ Recognize whether the corresponding page is “paper between pages of booklet” that requires bonding or “paper between booklets” that does not require bonding,
When it is recognized as “paper between pages of booklet”, print image data of the corresponding page is formed by combining the called document data and the print band data (4A1, 4A2,...)
When it is recognized as “sheet paper”, print image data of the corresponding page is formed only by the called document data not including the print band data (4A1, 4A2,...)
In order from the upper sheet of the booklet group, print image data is repeatedly formed for each corresponding page, and the print image data (FIG. 8) is printed for each corresponding page (FIG. 7).

(Set glue 5)
As the set paste 5, a water-based acrylic set glue binding adhesive is used. Specifically, acrylic copolymer and (molecular formula _{(C 5 H 8 O 2 ·} C 4 H 6 O 2) x) 20-40wt%, and acrylic acid alkyl ester copolymers 5-10wt%, 2, It consists of 1-5 wt% 2-bis [4-polyoxyalkyleneoxyphenyl], 1-5 wt% naphthalenesulfonic acid derivative sodium salt, and 40-60 wt% prepared water. Is known, and the penetrability to paper is adjusted by additives such as surfactants.

  In the set glue bookbinding of the present invention, printed paper is appropriately combined with N top, N middle, and N bottom, and a large amount of these are laminated, aligned, and the adhesive for set glue bookbinding is applied from the cross-section of the side to be bound. It causes selective penetration into and adheres when dried and solidified.

  The product of the first embodiment of the present invention is a test question that is printed and produced for 100 test questions in a mixed order of Japanese language, mathematics I, and number I in the order of examination numbers. As shown in FIG. 2, the test question is composed of I4 fine paper of A4 size, and the test question document is digitally printed on the front and back by an IJ printer. In the printing step, a water-based ink layer serving as a set glue 5 absorbent surface for set glue bookbinding is printed on the booklet joint at the same time as the document.

  Exam questions consist of examinees who need Mathematics I (2 pages) and Mathematics I (4 pages), and are bound as a booklet as appropriate for each examinee, and the booklets are stacked in order of examinee number. It was. FIGS. 2 and 3 show the booklet configurations and binding states of examinees Nos. 1 and 2 in this case. In the figure, it is shown that each examinee is combined as a booklet, and the required subjects and the number of pages are provided for each examinee. A set glue bookbinding is adopted as a coupling means at this time, and a set surface 5 is applied from the laminated cross section, and a printing surface is formed with water-based ink as an absorbent surface between pages to be absorbed and bonded.

  FIG. 7 shows the configuration of the test question processing system. Document data as print contents and examinee page configuration table data as shown in Table 2 below for controlling the printing order are prepared, and the IJ printer device calls them to perform digital printing.

この場合、試験問題としてのドキュメントデータにセット糊５吸収剤面の印刷要素を受験者頁構成データを参照して結合箇所対向部位に合成配置するプログラムが格納されている。このときの用紙としては、ＩＪ上質紙の巻取りを使用し、デジタル印刷後頁単位でシートカットして印刷済冊子ブロックを生産している。ここで生産された印刷済冊子ブロックに対して図３のセット糊製本が施されることとなる。

In this case, a program is stored in the document data as the test question, in which the print element of the set glue 5 absorbent surface is synthesized and arranged at the site opposite to the joint location with reference to the examinee page configuration data. As the paper at this time, IJ high-quality paper winding is used, and a printed booklet block is produced by sheet cutting for each page after digital printing. The set bookbinding shown in FIG. 3 is applied to the printed booklet block produced here.

(Specific configuration example)
Next, a specific configuration example of each element of the embodiment will be shown.
・ Paper: IJ fine paper 104g / m ² made by Mitsubishi Paper Industries
・ Set paste 5: Fuji Film pressure sensitive set paste 5
・ Treatment system: Dainippon Screen inkjet printer “TPJ520” and additional processing device ・ Ink: TPJ520 compatible Epson water-based pigment ink “Yellow”

  The deliverables of the second embodiment of the present invention are contract contents explanation, contract contents description sheet, description copy sheet, supplementary instructions, contract booklet for mixed contract documents for 100 persons, for contractor C, for contractor D, etc. They are printed and produced in the order of contractors. As shown in FIG. 4, the contract booklet is made of I4 fine paper of A4 horizontal size, and a test question document is digitally printed on the front and back by an IJ printer. In the printing step, a water-based ink layer serving as a set glue 5 absorbent surface for set glue bookbinding is printed on the booklet joint at the same time as the document.

(Density adjustment of printing band data (4A1, 4A2, ...))
By adjusting the density of the ink printed on the printing band 4A, different printing band data (4A1, 4A2,...) Can be formed for the same ink. By selecting the printing band 4A corresponding to the paper, it is possible to adjust the contact angle and thereby adjust the adhesive force between the papers.

  As a density adjusting means, for example, it is assumed that printing is performed with halftone dots, and an example in which halftone gradation is changed as shown in FIG. 9 in different print band data (4A1, 4A2,...) Can be considered. Since various colors (density) are realized by the halftone, different print band data (4A1, 4A2,...) With different halftones are printed with different types (halftone gradation divided into multiple stages) after printing. This stage) can be visually confirmed. The halftone dot here represents the color intensity by the size and density of the dots. The smaller the dots and the lower the density, the lighter the color, and the larger the dots and the higher the density, the darker the color.

  As for the contact angle, the application area of the hydrophilic ink correlates with the contact angle, and the total value of the contact angles of the opposing papers correlates with the adhesive force. If the density of the printing band 4A is also managed as halftone tone like the data of other documents, the adhesive force can be executed as an instruction of halftone tone data.

  As an example of a booklet configuration utilizing the density adjustment (FIG. 9) of the print belt data (4A1, 4A2,...), For example, uniformizing the total contact angle of the adhesive force between sheets in a booklet partially including different sheets. Thus, it is conceivable to secure a uniform strong adhesive force.

  In addition to the above, a booklet is formed by adhering three sheets of first and second sheets of thin paper and third sheet of thick paper. Arbitrary pages such as reply sheets can be removed by making the second-third paper easier to separate than the first-second paper. This is in view of the fact that cardboard is stiff and requires a relatively strong adhesive force even with the same adhesive force.

(Evaluation method based on contact angle of bonding area)
The method for evaluating the binding of the booklet-like printed material 10 according to the present invention is such that a plurality of sheets constituting a booklet are in contact with each other in order and cut at a predetermined binding edge, and the sheets constituting the booklet are predetermined from the binding edge. This is a method for evaluating the binding of a booklet-like printed material 10 in which a set paste 5 is adhered in a connecting region having a width. This is a method for evaluating the throwing condition or accuracy in advance by paying attention to the total value of the contact angles of the opposing pages or the throwing sea level of the set glue 5. In addition to being used as an evaluation method for the booklet-like printed material 10, it can also be used as an evaluation method for other printed materials.

As an evaluation procedure,
A step of calculating a total value of contact angles in each coupling region of a set of contact sheets in a booklet;
A step of obtaining a critical value of the contact total contact angle at which the set glue 5 injected from the cut end C reacts;
Obtaining a difference between a total value of the contact angles in the coupling region and a critical value of the contact total contact angle at which the set paste 5 reacts,
This is an evaluation method for evaluating whether or not the booklet-like printed matter 10 is suitable for the binding of the book-like printed matter 10 based on the difference value.

  If the total value of the contact angles in the bonding region of the opposing sheets is set to be lower than a predetermined total contact angle critical, it is evaluated that good binding can be achieved.

  Further, if the total value of the contact angles in the non-bonded area is set to be larger than the total value of the contact angles in the bonded area exceeding a predetermined critical difference, the set glue 5 is thrown in excess. It will never be done.

  Alternatively, if the contact angle in the non-bonded region is set to be larger than the contact angle in the combined region by a predetermined critical difference in at least one of the constituent sheets, the set glue 5 is thrown in excess. Never happen.

  In the case where the printing band 4A is formed with the water-based ink 4 and the set glue 5 is thrown through the binding edge F, whether or not it is appropriate is evaluated based on at least one of the total value and the difference. Alternatively, the total value and the difference value are combined to evaluate whether they are appropriate. Thereby, the combination of the water-based ink 4 and the set paste 5 of an appropriate printing band 4A can be evaluated in advance.

  In addition, the present invention is not limited to the above-described embodiments, and various element changes, element extractions, combinations, recombination, form changes, procedure changes and adjustments can be made without departing from the spirit of the present invention. Is possible.

FIG. 3 is a partially broken explanatory view showing a booklet-like printed matter group (first and second printed matter 10B) of Example 1 in which two types of two books are stacked. 2 is a perspective exploded explanatory view of a booklet-like printed matter group (first and second printed matter 10B) of Example 1 of two types and two. Cross-sectional explanatory drawing of the booklet-like printed matter group of Example 1 of 2 types and 2 books. FIG. 10 is a partially broken explanatory view showing a booklet-like printed matter 10 (third printed matter 10C) of Example 2. The perspective exploded explanatory drawing of the booklet-like printed matter 10 (3rd printed matter 10C) of Example 2. FIG. Cross-sectional explanatory drawing of the booklet-like printed matter group (3rd, 4th printed matter 10D) of Example 2 comprised by overlapping two types of 2 books. Explanatory drawing which shows the structure of the processing system of multiple types of booklet-like printed matter. Explanatory drawing which shows the formation method of print image data. Explanatory drawing which shows the image of several printing belt | band | zone data (4A1, 4A2, ...) from which a halftone tone differs.

Explanation of symbols

1 Print strip paper 11 First print strip paper (cover) (first document data)
12 Second printing belt (cover) (second document data)
13 Third printing belt (cover) (third document data)
21 pressure-sensitive top paper 22 pressure-sensitive middle paper 23 pressure-sensitive bottom paper 2c color former layer 2d developer layer 31 first printing belt paper (backing paper)
32 Second printing belt (backing paper)
4 Water-based ink 4A Printing band 4A1 First printing band data 4A2 Second printing band data 4A3 Third printing band data 5 Set glue 5s Set glue throwing part C Cutting edge F Binding edge 10 Booklet-like printed matter 10A First printed matter 10B Second Printed matter 10C Third printed matter 10D Fourth printed matter

Claims (7)

A booklet-like printed material group consisting of multiple types of booklets in which different document contents are digitally printed on at least some pages.
A plurality of sheets constituting each booklet are stacked in page order after each printing,
And with multiple sheets of paper stacked in the order of the booklet,
A set glue is applied to the binding edge that is a common end of each paper, and a plurality of books are simultaneously back-stitched and bound,
Between the pages of each booklet, a print band printed with a specific color water-based ink is formed at the same time as the document content by digital data printing in an area provided with a predetermined width from the binding edge side,
The printing band forming part between the pages of each booklet is a lower contact angle part lower than the contact sheet between the booklet,
A set of booklet-like printed materials, wherein the set glue reacts only with the low contact corners and is thrown. The low contact angle portion between each page of the booklet is such that the total value of the contact angle of the print band on each sheet in contact is lower than the critical value of the predetermined contact total contact angle,
The booklet-like printed material group according to claim 1, wherein the set glue reacts and throws only between sheets having a critical value less than or equal to the contact total contact angle. Any paper other than the printing band paper constituting the booklet is a pressure-sensitive paper in which a color former layer or a surface developer layer is formed in the binding region,
3. The booklet-like printed material according to claim 1 or 2, wherein a set glue is thrown through in response to the color developer layer lower than the contact angle critical and the surface developer layer from the cut end. The booklet-like printed material group according to claim 1, wherein the water-based ink contains a yellow pigment and a sulfonic acid derivative. A printing step for printing the print document data of each page together with the print band;
A laminating step of laminating a plurality of sheets;
A cutting step of cutting at a predetermined spelling edge;
A set glue injection step for injecting the set glue from the laminated side surface of the cut end edges,
The set glue is thrown only in the joint area between the contact sheets,
The set glue is not thrown into the non-bonded area that does not have a bond area between the contact sheets.
A method for producing a booklet-like printed material group according to any one of claims 1 to 4, wherein a plurality of booklet-like printed materials are continuously formed by set glue binding,
In the printing step,
A document data area for storing print document data for each page for each booklet of the booklet group;
A print band data area that collectively stores print band data of only the print band portion constituting the low contact angle portion;
A printing machine having an information section in which a print order and a book order data area for storing the contents of print documents of the constituent pages of each booklet constituting the booklet group and the order of the booklets constituting the booklet group are stored. With digital data printing,
-Based on the printing order and booklet order data area, in order from the upper sheet of the booklet group, the document data of the corresponding page in the document data area is called with the printing target page as the corresponding page,
・ Recognize whether the corresponding page is paper between pages of a booklet or paper between booklets,
-When recognizing the paper between pages of the booklet, the print image data of the corresponding page is formed by combining the called document data and the print band data,
-When recognizing that the paper is between pages of a booklet, the print image data of the corresponding page is formed only by the called document data not including the print band data,
A method for manufacturing a booklet-like print group, in which print image data is repeatedly formed for each corresponding page in order from the upper sheet of the booklet group, and the print image data is printed for each corresponding page. The print band data area stores a plurality of types of print band data having different contact angles corresponding to the set glue to be used or the paper to be used, with respective identification symbols attached thereto,
In the printing step, the printing press
If you recognize that the paper is between pages of a booklet,
Call the print band data with the identification symbol corresponding to the set glue to be used or the paper to be used for each page,
6. The booklet-like print group manufacturing method according to claim 5, wherein the print image data of the corresponding page is formed by combining the called document data and the called print band data. A booklet in which a plurality of sheets constituting a booklet are in contact with each other in order and cut at a predetermined binding edge, and the sheets constituting the booklet are bonded together by a set glue at a connecting region provided with a predetermined width from the binding edge. A method for evaluating the spell adhesion of printed materials,
Any one of the papers is a print belt paper that is printed with a specific color water-based ink and a print belt is formed in the combined region, and has a low contact angle lower than the paper surface contact angle other than the print belt,
Obtaining a total value of contact angles in the combined area of each set of contact sheets in the booklet;
Determining the critical value of the contact total contact angle at which the set glue injected from the cut end portion is reacted;
Obtaining a difference between the total value of the contact angle in the bonding region and the critical value of the contact total contact angle to which the set glue reacts and
A method for evaluating the binding adhesion of a booklet-like printed material group, which evaluates whether or not the booklet-like printed material is suitable for spelling adhesion based on the difference value.

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