JP2011014277A - Uv varnish heating device for dm, and dm making system incorporating the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a novel ultraviolet (UV) varnish heating device for direct mail (DM), and to provide a DM making system incorporating the same.SOLUTION: The UV varnish heating device used for heating the UV varnish for making a crimping type booklet DM before crimping is a microwave heating device with a magnetron, and a selective and homogeneous heating of UV varnish applied on a plurality of respective papers composing the booklet is carried out.

Description

  The present invention relates to a UV varnish heating device for DM and a DM creation system incorporating the same.

  In recent years, the use of direct mail (DM) advertisements is increasing at a tremendous rate. For example, a secret postcard (crimp postcard) in which information paper surfaces are crimped together is a typical example. The reason for this is that the information area is large due to the two-fold and three-fold paper configuration, the information is highly confidential, the unsealing rate at the delivery destination is high, and the delivery cost is the same as the government-made postcard. .

  Conventionally, the pressure bonding postcard for DM has pasted the information paper surface with a film or glue. The mainstream film laminate has very good gloss on the pressure-bonding surface, but the process of laminating the film on the printing paper surface is inferior in productivity. Further, when the paper is discarded after using the DM, the printing paper and the film cannot be separated, and there is a problem in terms of environmental protection to incinerate in terms of resource saving in terms of paper reuse.

  Crimping postcards using glue have higher productivity than the film laminating method, and can be treated as combustible materials when discarded. However, it is very inferior in terms of giving gloss to the printed surface of the crimping surface, and an attractive DM cannot be created.

  On the other hand, pressure-bonded postcards using ultraviolet curable (UV) varnishes are excellent in productivity, have the same glossiness as films, are environmentally friendly, and are expected to become the mainstream of future DM postcards.

  On the other hand, DM users want to be able to display a larger amount of information regarding the amount of information. In the postcard-sized DM, the number of paper sheets is increased to two-fold, three-fold, and reciprocating postcard types.

  Here, in the present application document, “paper surface” refers to the DM printable surface, and “paper surface number” refers to the number of printable surfaces. “Sheet” refers to a sheet constituting the DM, and “number of sheets” refers to the number of sheets converted into a postcard size (for example, in the case of a crimped postcard). Therefore, there is usually a “paper surface” on both sides of the “sheet”, and twice the “sheet number” has a relationship of “number of paper surfaces”.

The present inventors are not aware of the existence of prior art documents in which a booklet-type DM as described below is pressure-bonded using UV varnish.

  The inventors of the present invention have continued to develop a maximum of the number of sheets in various sizes with respect to the pressure-bonding DM that can describe a large amount of information. That is, over the past few years, we have been intensively studying production technology to realize the number of sheets of 6, 8, 10, etc. in A4 size, postcard size, etc. In this case, as described later, the bellows type DM cannot be adopted, and the booklet type DM is adopted. Regarding the technology for producing such a DM having a large number of papers, we are separately preparing for a patent application.

  However, if the number of papers is increased during the examination process, sufficient adhesive strength cannot be obtained between the papers located inside the booklet-type DM (between the sheets in the middle of the thickness direction of the DM). The problem of peeling off occurred.

  Therefore, an object of the present invention is to provide a novel UV varnish heating device for DM and a DM creation system incorporating the same.

  Furthermore, an object of the present invention is to provide a novel UV varnish pressing method for DM and a DM preparation method using the same.

  A UV varnish heating device for heating a crimp-type booklet-type DM using an ultraviolet curable (UV) varnish according to the present invention before pressure bonding is a microwave heating device having a magnetron. A UV varnish heating device that selectively and uniformly heats the UV varnish coated on each of a plurality of paper surfaces constituting the booklet.

  Furthermore, the UV varnish heating device may further include a heater that generates hot air and may use microwave heating and heater heating in combination.

  Further, the UV varnish heating device may further include a humidifying means, and humidify the booklet-type DM pressure-bonded surface coated with the UV varnish before microwave heating.

  Furthermore, the UV varnish heating apparatus may further include a ceramic base plate, and microwave heating may be performed in a state where the booklet-type DM is placed on the base plate.

  Furthermore, the UV varnish heating device further includes a humidifying means for humidifying the pressure-bonding surface coated with the UV varnish, and a ceramic laying plate, and before the microwave heating, the booklet type DM The pressure-bonding surface coated with UV varnish may be humidified, and microwave heating may be performed in a state where the booklet type DM is placed on the laying plate.

  Furthermore, the method of heating the UV varnish before the crimping of the crimping booklet type DM using the ultraviolet curable (UV) varnish according to the present invention is performed by using the microwave heating apparatus having a magnetron. The UV varnish coated on each of a plurality of papers constituting the DM is selectively heated uniformly.

  Furthermore, in the method of heating the UV varnish, the booklet may be heated from the surroundings by using a heater that generates hot air.

  Furthermore, a system for creating a crimp-type booklet-type DM using an ultraviolet curable (UV) varnish according to the present invention includes a printing apparatus that prints on paper, and a UV that coats UV varnish on the pressure-bonding surface of the paper. Varnish coating device, UV varnish drying device for drying UV varnish, adhesive application device for applying an adhesive to a predetermined portion of the paper, and folding the paper a plurality of times perpendicular to the paper feed direction A paper folding device, a paper folding device that folds the paper once along the paper feeding direction, a roller device that feeds and pressurizes the paper from the binding side to drive out air between paper surfaces, and paper folding A cutting device that cuts the paper into a predetermined size to form a booklet, a UV varnish heating device according to any one of claims 1 to 5 that heats the UV varnish of the booklet, and the heated booklet With a crimping device for crimping That.

  Further, a method for producing a pressure-sensitive booklet-type DM using an ultraviolet curable (UV) varnish according to the present invention includes a step of printing on a paper, and a step of applying UV varnish to the pressure-bonding surface of the paper. A step of drying the UV varnish, a step of applying an adhesive to a predetermined portion of the paper, a step of folding the paper a plurality of times perpendicular to the paper feed direction, and the paper in the paper feed direction. A step of folding the paper once along, a step of feeding and pressurizing the paper from the binding side, expelling air between the paper surfaces, a step of cutting the paper folded into a predetermined size into a booklet, The booklet includes a step of heating using the UV varnish heating device according to any one of the above, and a step of pressure-bonding the heated booklet.

  ADVANTAGE OF THE INVENTION According to this invention, the novel UV varnish heating apparatus for DM and DM production system incorporating this can be provided.

  Furthermore, according to the present invention, it is possible to provide a novel UV varnish pressing method for DM and a DM preparation method using the same.

FIG. 1A is a diagram illustrating an example of a conventional four-sheet type crimping postcard. FIG. 1B is a diagram illustrating an example of a conventional 6-sheet type crimping postcard. FIG. 1C is a diagram illustrating an example of a conventional reciprocating type crimping postcard. FIG. 2 is a diagram for explaining an example of the DM currently being developed by the applicant. FIG. 3 is a flowchart illustrating a DM creation process using a UV varnish heating device for DM. FIG. 4A is a diagram illustrating a fold line on the surface side of the DM of FIG. FIG. 4B is a diagram for explaining a fold line on the back side of the DM of FIG. FIG. 4C is a diagram illustrating a state after the paper folding of the DM of FIG. FIG. 5 is a diagram for explaining a UV varnish heating apparatus for DM. FIG. 6 is a diagram for explaining a method of humidifying the DM of FIG.

  Hereinafter, embodiments of a UV varnish heating apparatus for DM according to the present invention and a DM creation system incorporating the same will be described in detail with reference to the accompanying drawings. In the drawings, the same reference numerals are assigned to the same elements, and duplicate descriptions are omitted.

[Example of conventional crimped postcard]
1A to 1C are diagrams illustrating an example of a conventional crimping postcard. At present, the crimping postcards that are widely used in general include a four-sheet type shown in FIG. 1A, a six-sheet type shown in FIG. 1B, and a reciprocating type shown in FIG. 1C.

  The four-sheet type shown in FIG. 1A is a two-fold crimped postcard, and can contain an information amount two to three times that of a normal postcard. In many cases, confidentiality is ensured by putting a background pattern (solid or picture) so that information cannot be seen through on the back side.

  The 6-sheet type shown in FIG. 1B is a three-fold crimping postcard, and is used for various notifications. The amount of information can be posted 4 to 5 times the normal postcard. Similarly, a background pattern is often put on the back side.

  The reciprocating type shown in FIG. 1C is a two-fold type crimping postcard with a reciprocating postcard. The amount of information can be posted twice as much as the round-trip postcard. Cut one side and use it as a reply postcard.

[Outline of DM currently under development]
Furthermore, in order to increase the amount of information, one of (i) increasing the number of pages, (ii) increasing the page size, (iii) increasing the number of pages and increasing the page size is required. It becomes.

  (I) With respect to the idea of increasing the number of pages, for example, it is possible to further increase the number of pages of the 6-sheet type shown in FIG. In the bellows type DM, the longitudinal side of the printing paper before folding is very long, and it is not possible to use printing paper of a size generally used. Special size printing paper is expensive and unsuitable for general use.

  (Ii) The idea of increasing the paper size is a good idea that can be easily adopted. That is, the A4 size DM larger than the postcard size DM can display an information amount four times the information amount of the crimping postcard on a paper surface basis from the area ratio. For this reason, the A4 size DM has an advantage that relatively complicated drawings, photographs and the like that are difficult to post on the postcard size DM can be posted.

  However, regarding the size of the DM, it may be necessary to make it a specific size (that is, a postcard size or the like) due to other restrictions such as a fee system necessary for mailing.

  As described in (i) above, since the printing paper having a size generally used cannot be used in the bellows format, the present applicant aims to create a DM in the “saddle stitch” format. Furthermore, from the viewpoint of the reuse of paper resources and the danger of using metal needles, a method is adopted in which the edge of the paper side on the binding side is bound with an adhesive without using metal needles (stapler (stapler) needles). Yes.

  Regarding the size, DMs of various sizes are prepared according to the needs of the user. Typically, there are two types of postcard size and A4 size. In each size, the number of paper sheets increased to 8 paper sheets, 10 paper sheets, 12 paper faces, and 14 paper faces, and production technology for DM creation of 16 paper faces is currently under development.

  FIG. 2 is a perspective view of a DM 1 in the form of a booklet consisting of 16 pages, which is an example of the DM currently being developed by the present applicant. The front cover is the paper number (1), and the back cover is (16). The same front page as the front page (1) is set to the page numbers (3), (5), (7), (9), (11), (13), and (15) in order. On the other hand, the paper surface facing the same as the paper number (16) which is the back cover, the paper number (2), (4), (6), (8), (10), (12), (14). That is, the back side of the cover page number (1) is the page number (2), the back side of (3) is (4), the back side of (15) is the back page number (16). is there.

  In the conventional crimping postcard as shown in FIGS. 1A to 1C, ultraviolet rays from an ultraviolet generator are irradiated to the crimping postcard before being folded (unfolded), and the paper is folded and overheated immediately after that. It is crimped as it is. A typical example of the UV generator of the UV varnish dryer is a mercury lamp.

  However, when the number of sheets as shown in FIG. 2 is large, an ultraviolet curable (UV) varnish is applied to the printed paper used in the conventional crimping postcard as shown in FIGS. It was found that even after drying and pressure bonding using a dedicated UV varnish dryer for crimping postcards, sufficient adhesive strength was not obtained between the inner sheets, and they were easily peeled off. This phenomenon was remarkable when the pressure bonding was performed after several hours to several days after UV varnish coating.

  In the booklet of FIG. 2, there is a bookbinding process after the UV drying process. Furthermore, the “UV varnish coating process and UV varnish drying process” and the “paper folding process, cutting process, and pressure bonding process” may be performed in different places.

  Even if the booklet-type DM1 in which a plurality of sheets after the bookbinding process are overlapped is heated using a normal heater, the space between the sheets located inside the DM1 (the middle part in the DM thickness direction) The UV varnish (between the two sheets) is not heated sufficiently. It is the same even if the UV varnish dryer used in the UV drying step is used again and heated. The heat rays from the normal heater or the ultraviolet rays from the UV generator of the UV varnish dryer are applied to the UV varnish applied to the paper surfaces (6) and (7) and the UV applied to the paper surfaces (10) and (11). It acts on the varnish through three sheets from the outside. Similarly, it acts on the UV varnish coated on the paper surfaces (8) and (9) through four sheets from the outside. For this reason, it seems that heat rays and ultraviolet rays are attenuated every time they pass through the sheet.

  In the crimping DM, when a person who receives the DM peels off, it can be easily peeled off, and an adhesive strength that does not easily peel off during mailing is required.

  As one solution for maintaining the adhesive force, there is a method in which a plurality of heaters are prepared and heated for a relatively long time before pressure bonding. However, in this method, the heating process becomes longer and the heating time becomes longer. If the number of sheets is further increased, this method is not a fundamental solution.

[DM creation process]
FIG. 3 is a flowchart for explaining a booklet format DM creation process.

  First, a description will be given of a DM post-forming process of a pressure-bonded postcard as shown in FIGS.

  In step S01, information is printed on the paper. In step S02, UV varnish is applied. In step S03, the UV varnish is dried with ultraviolet rays from a UV varnish dryer. The paper is folded in step S05 and pressed in step S10. Since the unfolded DM before the paper folding is heated in the UV varnish drying process (step S03) and is immediately crimped (step S10), it is not necessary to provide a heating process immediately before the crimping.

  On the other hand, the booklet format DM1 of this embodiment is as follows.

  In step S01, printing is performed on a sheet. All the paper surfaces (1) to (16) on the front surface side of the booklet 1 shown in FIG. 4A and the back surface side shown in FIG. 4B are printable information surfaces.

  In step S02, UV varnish is applied. As shown in FIG. 4C, UV varnish is applied to the printed surfaces of the paper surfaces (2) to (15) to be pressed, excluding the front cover (1) and the back cover (16). UV varnish may also be applied to the front cover (1) and the back cover (16).

  In step S03, the coated UV varnish is dried using a normal UV varnish drying apparatus using ultraviolet rays. A typical example of an ultraviolet generator is a mercury lamp.

  In step S04, an adhesive is applied to the bonding location. On the surface side shown in FIG. 4A, the adhesive is applied to the adhesive application locations 4 and 6. On the back side shown in FIG. 4B, the adhesive is applied to the adhesive application portion 8.

  In step S05, the paper is folded a plurality of times in the vertical direction. Paper is folded perpendicularly to the paper feed direction at the first valley fold line, the second mountain fold line, and the third valley fold line shown in FIG. 4A. In FIG. 4B, the same paper folding line is shown as “valley fold” as “mountain fold” and “mountain fold” as “valley fold”.

  In step S06, the paper is folded once in the horizontal direction. 4A and 4B, the paper is folded in the direction along the paper feeding direction. FIG. 4C shows the state of DM1 after paper folding.

  In step S07, air is expelled between the pages of the booklet format DM. Specifically, the booklet format DM is passed between two rotating rollers pressed against each other to press between the sheets coated with UV varnish. By sending between the rollers in the direction of the arrow shown in FIG. 2 (the binding side of the booklet DM is at the top), pressure is applied to expel air from the pressure-bonding surface, thereby suppressing the occurrence of air voids between the sheets. At the same time, the paper folding portion in steps S05 to S06 is pressurized to complete the adhesion of the adhesive application portion in step S04.

  In step S08, the sheet is cut into a predetermined size. For example, it is cut into postcard size or A4 size.

  In step S09, a heat treatment of UV varnish using a magnetron is performed. There are the following four methods for heat treatment of UV varnish.

(1) Microwave heating using a magnetron Microwave heating will be described in detail in the following [Microwave heating apparatus] section. At this time, a heat treatment using a heater may be used in combination.

    (2) Humidify DM1, and then perform microwave heating of (1) above.

    See FIG. Microwave heating increases the temperature of moisture contained in the object to be heated. Therefore, as shown in FIG. 6A, the page of the booklet type DM <b> 1 conveyed by the conveying device 16 is developed while being spun with the air 20 and is humidified with the sprayer 22. Alternatively, as shown in FIG. 6 (B), the page of the booklet type DM1 suspended from the transport wire 16a is developed while being spun with air 20 and humidified with a sprayer 22. Alternatively, the booklet type DM1 page may be opened and humidified by being left in a humid space (for example, a saturated water vapor space) for a while.

    (3) The microwave heating of (1) is performed in a state where the booklet type DM1 is installed on the ceramic slab.

    As shown in FIG. 5, when performing the microwave heating of (1) above, the booklet type DM 1 is installed on the ceramic floor plate 15. Since the ceramic laying plate 15 is heated to a high temperature by the microwave, the booklet type DM1 is heated by microwave irradiation from above and is heated by the high temperature ceramic 15 from below.

    (4) The microwave heating of the above (1) is performed in a state where the booklet type DM1 is humidified and then placed on the ceramic slab. This is a combination of (2) and (3) above.

  Which method is adopted differs depending on the paper thickness, paper quality, number of pages, etc. of the booklet type DM1, and is determined by repeating several trials.

  In step S10, pressure bonding between the paper surfaces is performed. Specifically, the booklet format DM is passed between two rotating rollers pressed against each other, and the sheet coated with UV varnish is pressure-bonded. At this time, the roller may be heated to perform thermocompression bonding. Further, as described in step S07, air may be more reliably ejected from the pressure-bonding surface by sending the booklet DM on the binding side between the rollers.

  As described above, according to this embodiment, the booklet format DM having a large number of pages can be bonded by providing the UV varnish heating step using the magnetron.

[Microwave heating device]
The present inventors repeated various experiments in order to heat-treat the UV varnish for DM before pressure bonding. As a result, it was found that extremely good results can be obtained by heat treatment using a microwave oven.

  The principle of the microwave oven is microwave heating. A magnetron is used as a source of electromagnetic waves of 300 MHz to 300 GHz. A microwave oven is a cooking utensil that cooks food with the energy of electromagnetic waves. In the microwave oven, energy is given to the molecules inside the food and heated mainly by molecular motion and ion motion. For this reason, glass and earthenware that transmit electromagnetic waves are not directly heated. Therefore, in the booklet form DM1 as shown in FIG. 2, the printed paper is not heated, and only the DM UV varnish is selectively heated uniformly.

  FIG. 5 is a diagram illustrating a DM UV varnish heating device before pressure bonding. The DM UV varnish heating apparatus 10 includes a magnetron 12 that is a microwave generation source, a stirrer fan 14 that stirs the microwave generated from the magnetron, and a booklet type DM1 that is coated with a UV varnish for DM on the pressure-bonding surface. And a conveying means (conveyor) 16 for conveying the laying board. Furthermore, if necessary, a normal heater 18 that generates hot air may be provided and heated.

  The UV varnish heating device 10 for DM may be a batch type of a single device, or may be a part of a system incorporated in a DM creation system that can create a series of DMs.

  The magnetron 12 generates an electromagnetic wave (microwave) of 300 MHz to 300 GHz. The microwave output is about 0.1-5 kW.

  At the same time, heat rays may be used in combination. In this case, the booklet type DM1 is irradiated with an infrared lamp. Alternatively, hot air may be used in combination. For example, when the heater 18 is used as hot air, the heater power is less than 5 kW and the maximum temperature is heated to 100 to 140 degrees C.

[Alternative examples and others]
As described above, the embodiment of the UV varnish heating apparatus for DM according to the present invention and the DM creation system incorporating the same have been described, but the present invention is not limited to this. Additions, deletions, changes, and improvements that can be easily made by those skilled in the art with respect to the present embodiment are included in the present invention.

  The technical scope of the present invention is defined based on the description of the appended claims.

  1: Booklet-type DM, booklet-type DM, 12: magnetron, 14: stirrer fan, 16: transfer device, 15: ceramic laying plate, high-temperature ceramics, 16a: transfer wire, 18: heater, 20: air, 22: spraying ,

Claims (9)

In a UV varnish heating apparatus that heats a booklet-type DM using a UV varnish (UV) varnish before press bonding,
The UV varnish heating device is a microwave heating device having a magnetron, and selectively and uniformly heats the UV varnish coated on each of a plurality of paper surfaces constituting the booklet. The UV varnish heating device according to claim 1, further comprising:
A UV varnish heating device that includes a heater that generates hot air and uses both microwave heating and heater heating. The UV varnish heating device according to claim 1, further comprising:
A UV varnish heating device that includes a humidifying means and humidifies the pressure-bonding surface of the booklet-type DM coated with the UV varnish before microwave heating. The UV varnish heating device according to claim 1, further comprising:
A UV varnish heating device comprising a ceramic base plate and performing microwave heating in a state where the booklet-type DM is placed on the base plate. The UV varnish heating device according to claim 1, further comprising:
Humidifying means for humidifying the pressure-bonded surface coated with the UV varnish;
With ceramic flooring,
Before microwave heating, humidify the pressure-bonded surface coated with the UV varnish of DM in the booklet format,
A UV varnish heating device that performs microwave heating in a state where the booklet-type DM is placed on the floor plate. In a method of heating a UV varnish before press-bonding a booklet-type DM using a UV varnish (UV) varnish,
A UV varnish heating method of selectively and uniformly heating UV varnishes respectively applied to a plurality of paper surfaces constituting the booklet-type DM using a microwave heating apparatus having a magnetron. The method of heating a UV varnish according to claim 6,
Further, a UV varnish heating method in which the booklet is also heated from the surroundings in combination with a heater that generates hot air. In a system for creating a booklet-type DM with a crimping type using an ultraviolet curable (UV) varnish.
A printing device for printing on paper;
A UV varnish application device for applying UV varnish to the pressure-bonding surface of the paper;
A UV varnish drying apparatus for drying the UV varnish;
An adhesive application device for applying an adhesive to a predetermined portion of the paper;
A paper folding device for folding the paper a plurality of times perpendicular to the paper feed direction;
A paper folding device for folding the paper once along the paper feed direction;
A roller device that feeds and pressurizes the paper from the binding side to expel air between paper surfaces;
A cutting device that cuts the folded paper into a predetermined size and forms a booklet;
The UV varnish heating apparatus according to any one of claims 1 to 5, wherein the UV varnish of the booklet is heated.
A DM creation system comprising a crimping device for crimping the heated booklet. In a method of creating a crimp-type booklet format DM using an ultraviolet curable (UV) varnish,
Printing on paper,
Applying UV varnish to the pressure-bonding surface of the paper;
Drying the UV varnish;
Applying an adhesive to a predetermined portion of the paper;
Folding the paper multiple times perpendicular to the paper feed direction;
Folding the paper once along the paper feed direction;
A step of feeding and pressurizing the paper from the binding side to expel air between paper surfaces;
Cutting the paper folded into a predetermined size into a booklet; and
The step of heating the booklet using the UV varnish heating device according to any one of claims 1 to 5,
Crimping the heated booklet.

Images