KR101019102B1 - Flexography-combined offset printing device - Google Patents

Abstract

PURPOSE: A flexography-combined offset printing device is provided to reduce the loss of raw materials by individual installation thereof in an offline form. CONSTITUTION: A flexography-combined offset printing device comprises a coating printer(100), a scratch printer(200), and a scratch top printer(300). A coating printer applies coating solution on a scratch area in a print paper firstly printed. The scratch printer prints opaque scratch ink on the scratch area, in which a coating solution is applied, in a flexography printing manner. The scratch top printer prints the printed content on the upper part of the scratch in an offset print manner. The coating printer, the scratch printer, and the scratch top printer are individually installed in a respective offline form.

Description

Flexography-combined offset printing device

The present invention relates to a printing apparatus, and more particularly, to a flexographic combined offset printing apparatus incorporating a flexography printer on an offset printing press.

In general, there are three types of printing methods, namely, flat plate printing, iron plate printing, and intaglio printing. The iron plate printing causes convexities of the wires to be raised so that ink is printed on the paper. On the contrary, intaglio printing is a concave line part which is concave, and the ink is printed on it. If these are physical printing methods, flat printing is a kind of chemical printing method using a reaction between water and oil.

Specifically, flat plate printing is one of the typical printing methods, and the flat plate, that is, the incineration line in which ink is applied and the incineration line in which ink is not present exists on the plane, but first, water is applied to the entire plate surface by using a repulsion phenomenon between water and oil. It is a shaft, and when the ink is buried again, the non-firing portion rejects the water so that no ink is applied, and when the ink is applied only to the firing portion and the printing pressure is applied, the ink is attached to the paper to print.

The advantages of such flat printing include a very wide range of applications, printing on almost any type of paper or geological paper, relatively easy modifications, and a large number of prints that can be printed on any number of sheets. The whole is soft, and an ink film is thin.

However, flat printing has no disadvantages such as lack of gloss in ink and difficulty in showing rich gradation as in the case of intaglio printing. In the past, such flat printing has been mainly used for printing picture books, comic books, covers, etc., but recently, flat printing is most commonly used for printing general newspapers, newspapers, magazines, etc. due to the generalization of computer typesetting.

Offset printing is a simpler and faster operation of the above-described flat printing method, and since offset printing is the mainstream of flat printing, flat printing is often referred to as offset printing. Offset printing is a method of printing the ink on the printing plate once onto a rubber blanket and then printing it from the paper, instead of printing directly onto the paper with the printing plate.

In addition, there are two methods of transferring the ink on the plate to the printed paper, indirect printing in which the ink is transferred to the paper on the plate and indirect printing in which the ink is transferred to the rubber blanket on the plate.

Offset printing is one of the indirect printing methods, and this offset printing was first applied to metals and glass, which were impossible with direct printing methods.The feature is that rubber blankets make it possible to print clearly on rough paper and It's stronger than direct printing, and the characters and images on the plate are like prints, making it easier to find different parts.

1 is a view for explaining a general offset printing method.

Referring to FIG. 1, a general offset printing machine 10 includes an ink roller 12, a damp water roller 12, a plate cylinder 14, a blanket 15, a pressure cylinder 17, and the like.

The offset printing press 10 is composed of three cylinders, namely, the plate cylinder 14, the rubber blanket 15, and the pressure cylinder 17, and these three cylinders 14, 15, and 17 are rotated and printed. After the printing plate is wound around the plate 14 and fixed, the damping roller (13) attached to the plate 14 is dampened with dampening water, and the ink roller 12 is coated with printing ink. Water is deposited on the non-fire line of 1) and the ink is rejected, so only the fire line gets ink. At this time, since the plate 14 is engaged with the rubber blanket 15 to rotate at the same time, the ink deposited on the fire wire is naturally transferred to the rubber blanket 15, and is also engaged with the pressure cylinder 17 is rotated. Therefore, when the printing paper 11 is put between the rubber blanket 15 and the pressure cylinder 17 and pressure is applied to the pressure cylinder 17, the ink of the wire portion transferred to the rubber blanket 15 is transferred to the printing paper 11 again to print. do.

Offset printing is a rotational printing using the cylinders 14, 15, and 17 in this manner, and the printing speed is high. In addition, the offset press 10 also has a multi-color printing machine capable of printing both sides of the printing paper 11 at the same time and a color printing of two or more colors at the same time, offset printing is because almost all computerized typesetting is offset printing Today it is in the limelight as the most common printing method. However, in offset printing, a wet material is applied to the non-flammable portion of the plate surface so that the water does not have any defects such as an increase in paper or emulsification of ink.

On the other hand, a printing plate is a printing plate that is covered with ink and transferred to a to-be-printed object to print a character, a design, and the like.

The convex plate (凸版) is to make the irregularities on the plate, and the ink is printed on the protruding portion, the plate-like image is the same as the image reflected on the glass, the left and right are changed from the actual printed. In the convex board, a board made of letterpresses, a wooden board made by carving wood, a metal convex board protruding from a metal plate such as zinc or copper, and a photosensitive resin in the form of a liquid or solid plate There is a photosensitive resin convex plate made.

In addition, there is a form of a flexible convex plate using a rubber and a photosensitive resin in the material of the plate as a kind of convex plate, the printing using this is called flexographic printing.

Flexographic printing is a method of special printing, which is a method of printing by applying light printing pressure to a rubber sheet or resin sheet using flexography ink, that is, aniline ink. In short, it is also called flexo printing. At this time, the flexographic ink has a quick-drying property, and uses the properties of such ink to perform high-speed rotation printing, and is mainly printed on kraft paper, corrugated paper, plastic plate, cellophane, metal foil, and the like.

This flexographic printing was named for its flexible plate, which has been used worldwide since the name of flexography was adopted by the public in 1950 in the United States. Flexographic printing is a method of printing with liquid ink using one of the convex plates with elastic resin or rubber convex plates. Initially it was called aniline printing because it used ink in which aniline dye was dissolved in alcohol.

FIG. 2 is a diagram for explaining a general flexographic printing method, and FIG. 3 is a diagram illustrating an inline flexographic printing machine using a general flexographic printing method.

Referring to FIG. 2, a general flexographic printing machine 20 may include an ink collection 22, an ink roller 23, an anilox roller 24, a doctor blade 25, a plate 26, a pressing cylinder 27, and the like. It includes.

The general flexographic printing machine 20 sandwiches the continuous printing paper 21 between the impression cylinder 27 and the plate 26, and the anilox roller 24 in which the amount of transfer ink is adjusted by the doctor blade 25. By supplying ink to the plate (26) to transfer printing on the printing paper (21). At this time, the plate 26 may be formed by a seamless resin plate.

In such flexographic printing, the ink supply to the plate 26 is made by the anilox roller 24, and the control of the ink amount on the surface of the anilox roller 24 uses the doctor blade 25 or The two-roll method is also used.

Such flexographic printing presses 20 are of drum type, stacking type, and inline type, and such flexographic printing is suitable for rotary printing. For example, the inline flexographic printing press 30 is shown in FIG. As shown, the printing unit is arranged horizontally, and is suitable for printing thick and hard kraft paper, cardboard, liner paper, corrugated paper, and the like.

Such flexographic printing has the advantage of being able to print at low pressure because it is a soft plate, relatively easy to transfer ink even on rough materials, and to allow partial modification and replacement of the plate, but the printing accuracy is inferior. There is a disadvantage that the gradation is lower than that of the offset printing method or the gravure printing method.

On the other hand, in order to remove the scratches (silver foil) attached to the instant lottery, prize lottery, gratuity lottery, tissue lottery, cigarette lottery, stickers in confectionery, etc. come. This instant lottery paper uses a laminated sheet of aluminum foil to prevent light transmission, and prints the lottery letters on the foil surface, and then covers the printed surface with an opaque cover layer to maintain the confidentiality of the lottery ticket. One user scraped the opaque cover layer on the spot so that they could see the contents of the lottery.

For example, after printing all the printed contents on the printing paper, apply the scratch coating, which is an opaque cover layer such as gold foil or silver foil, to the hidden printing part such as lottery letters in the printed content to form a scratch coating layer, thereby ensuring the confidentiality of the lottery. In addition, the user may recognize the text or the pattern printed on the hidden printing unit by removing the scratch coating layer.

Therefore, in order to produce a printed matter having a scratch portion, after printing a predetermined letter or pattern on the printing paper, the second opaque cover layer, that is, the scratch coating layer, is again applied thereon.

On the other hand, Figure 4 is a view for explaining the use of a scratch-printing gift certificate used online.

An online / offline gift certificate is a gift certificate issued in the form of a currency, each having a serialized number 43 and used at an offline merchant or by peeling off the scratch portion of the gift certificate. ) Can be used online merchants and mobile. As illustrated in FIG. 4, the online / offline combined gift certificate can be confirmed by the pin number 41 and the issue date 42 whether the gift certificate is used online.

However, the online / offline combined gift certificate according to the related art can be manufactured mainly by the above-described inline flexographic printing press 30. Such a flexographic printing press is suitable for printing a large quantity of small items, and a rotoprint method. Since it occupies a large space, and the resin plate (or rubber plate) printing method, the printing accuracy is reduced according to the regeneration of dots, and as shown in Figure 3, a large roll-type machine mainly adopts the in-line method, the raw material loss rate is high There is a problem.

1) Republic of Korea Patent Publication No. 10-2008-0064598 (published: July 09, 2008), the title of the invention: "Offset printing apparatus and offset printing method" 2) Republic of Korea Patent Publication No. 10-2008-0075784 (published: August 19, 2008), the title of the invention: "digital printing method that can be fitted to the flexographic printing system" 3) Republic of Korea Patent Publication No. 10-2009-0054741 (published: June 01, 2009), the title of the invention: "Printing method and the printed portion and the book printed by the printing method at the same time"

The technical problem to be solved by the present invention is to provide a flexographic combined offset printing apparatus that can be easily installed in a narrow space and can be printed in small quantities in a small space by combining a flexographic printing machine on an offset printing machine. It is to provide.

Another technical problem to be solved by the present invention is to flexibly print a scratch on a printing paper primarily offset printed by an offset printing apparatus by combining a flexographic printing machine on an offset printing machine. It is to provide a combined offset printing apparatus.

Another technical problem to be achieved by the present invention is to provide a flexographic combined offset printing apparatus that can reduce the raw material loss rate, because the coating printing press, the scratch printing press and the scratch upper printing press are separately installed in the off-line type. It is to.

As a means for achieving the above-described technical problem, the flexographic combined offset printing apparatus according to the present invention, a coating for applying a coating solution by a flexographic printing method on a scratch area determined on a primarily printed printing paper printer; A scratch printer for printing scratch-off ink, which is opaque, by a flexographic printing method on the scratch area to which the coating liquid is applied; And a scratch upper press for printing a predetermined print content on the upper portion of the scratch by offset printing, wherein the coating press, the scratch press and the scratch upper press are separately installed in an off-line form, and the coating press and the scratch press are It is characterized in that the flexographic printing press is combined on the offset printing press.

Here, the coating printer and the scratch printing machine is characterized in that to print only the scratch area of the printing paper by the direct printing method through the convex portion formed on each plate corresponding to the scratch area.

Here, the printing paper is characterized in that the single-sided or both-sided printing by the offset printing apparatus is primarily provided in a sheet (sheet type).

Here, the printing paper is an online usable gift certificate or a lottery ticket that hides a scratch area printed with letters or patterns primarily with the opaque scratch ink, and each serial number is used by a numbering device at the time of printing by the offline printing device. Is numbered.

Here, the coating printer, the primary paper feeder for supplying the printing paper provided in the sheet; A coating printing unit for applying and drying the coating liquid by flexographic printing on the scratch area of the printing paper supplied by the primary paper feeding unit; And it may include a primary discharge unit for laminating the printing paper coating coating is completed by the coating printing unit.

Here, the coating printing unit, the first UV (ultraviolet) coating unit for first surface coating the scratch area of the printing paper supplied by the primary feeding unit in advance and UV coating to prevent absorption; A primary UV lamp drying unit for drying the primary UV coated printing paper with a UV lamp first; A second UV coating part which is second UV coated for smooth surface treatment of the printing paper dried by the first UV lamp drying part; And it may include a secondary UV lamp drying unit for drying the second UV-coated printing paper with a UV lamp secondary.

Here, the scratch printing machine, the secondary paper feeder for supplying a sheet of printing paper coated with the scratch area after inspecting the printing paper laminated by the primary discharge unit of the coating printer; A scratch printing unit printing scratch-off ink, which is opaque by a flexographic printing method, on a printing sheet coated with a scratch area supplied by the secondary paper feeder; A drying unit drying the printing paper on which the scratch area is printed with the scratch ink; And it may include a secondary discharge unit for laminating the printing paper dried by the drying unit.

Here, the scratch printing unit, the scratch ink collection for storing the opaque scratch ink to continuously supply a predetermined amount of scratch ink; An ink roller (Ink Roller) to bury the opaque scratch ink from the ink collection to form an ink film; A screen roller which provides a uniform ink coating by adjusting the amount of transition ink by the doctor blade using the opaque scratch ink provided from the ink roller; A cylinder on which a printing plate is caught, comprising: a plate receiving opaque scratch ink from the screen roller and transferring to the printing paper; And an impression cylinder for engaging the plate and providing pressure to the printing paper to assist in the transfer of the opaque scratch ink.

Here, the plate may be formed convex to a predetermined height corresponding to the position of the scratch area and may include a convex portion for printing the opaque scratch ink on the scratch area.

Here, the drying unit may be an IR lamp dryer which is dried by an IR lamp.

The scratch upper printing machine may include: a tertiary paper feeder for inspecting printing sheets stacked by the secondary discharge unit of the scratch printing machine, and supplying printing sheets printed with opaque scratch ink in a single sheet; A scratch upper printing unit printing predetermined printing contents on an upper portion of the scratch area of the printing paper printed with the opaque scratch ink by an offset printing method; And it may include a tertiary discharge unit for laminating the printing paper printed on the scratch upper portion by the scratch upper printing portion.

The scratch upper printing unit may include: a primary UV printing unit which primarily UV-prints an upper portion of the scratch area of the printing paper supplied by the tertiary sheet feeding unit for a scratch printing complementary color; A primary UV lamp drying unit for drying the primary UV-printed printing paper primarily with a UV lamp; A secondary UV printing unit performing UV printing on the upper portion of the scratch area of the printing paper dried by the primary UV lamp drying unit for secondary UV printing for a paper roll operation; And a second UV lamp drying unit configured to dry the second UV-printed printing paper with a UV lamp.

According to the present invention, by combining a flexographic printing press on an offset printing press, it can be easily installed in a narrow space and small quantity printing of various types is possible.

According to the present invention, a scratch can be easily printed on printing paper primarily offset printed by an offset printing apparatus.

According to the present invention, the coating printing press, the scratch printing press and the scratch top printing press are separately installed in the off-line type, respectively, so that the raw material loss rate can be lowered.

According to the present invention, high-quality printing is possible by primary precision printing by an offset printing apparatus, and a printing press can be manufactured at a manufacturing cost of less than 20% as compared with a conventional flexographic printing press.

1 is a view for explaining a general offset printing method.
2 is a view for explaining a general flexographic printing method.
3 is a diagram illustrating an inline flexographic printing press using a general flexographic printing method.
4 is a view for explaining the use of a scratch printing type gift certificate used online.
5 is a schematic block diagram of a flexographic coupled offset printing apparatus according to an embodiment of the present invention.
Figure 6 is a block diagram of a coating printing machine in a flexographic combined offset printing apparatus according to an embodiment of the present invention.
7 is a block diagram of a scratch printing machine in the flexographic combined offset printing apparatus according to the embodiment of the present invention.
8 is a block diagram of a scratch upper printing machine (rolling machine) in the flexographic combined offset printing apparatus according to the embodiment of the present invention.
9 is a detailed block diagram of a scratch printing machine in the flexographic combined offset printing apparatus according to the embodiment of the present invention.
10 is a view for explaining a printing method of the flexographic combined offset printing apparatus according to an embodiment of the present invention.
11 is a table for comparing the characteristics of the flexographic combined offset printing apparatus and the conventional flexographic printing press according to the embodiment of the present invention.
12A and 12B are photographs showing a primary paper feeder and primary paper feeder of the coating printer in the flexographic combined offset printing apparatus according to the embodiment of the present invention, respectively.
13 is a photograph showing a scratch printer in the flexographic combined offset printing apparatus according to an embodiment of the present invention.
14 is a photograph showing a scratch upper printing machine in the flexographic combined offset printing apparatus according to the embodiment of the present invention.
15 is a photograph for explaining a coating printing machine in the flexographic combined offset printing apparatus according to an embodiment of the present invention.
16A to 16C are photographs for explaining a scratch printing machine in the flexographic combined offset printing apparatus according to the embodiment of the present invention, respectively.
17 is a photograph for explaining a scratch upper printing machine in the flexographic combined offset printing apparatus according to an embodiment of the present invention.
18A to 18C are diagrams illustrating print sheets printed by a flexographic combined offset printing apparatus according to an embodiment of the present invention, respectively.

DETAILED DESCRIPTION Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. In the drawings, parts irrelevant to the description are omitted in order to clearly describe the present invention, and like reference numerals designate like parts throughout the specification.

Throughout the specification, when a part is said to "include" a certain component, it means that it can further include other components, without excluding other components unless specifically stated otherwise. Also, the term "part" or the like, as described in the specification, means a unit for processing at least one function or operation, and may be implemented by hardware, software, or a combination of hardware and software.

5 is a schematic block diagram of a flexographic coupled offset printing apparatus according to an embodiment of the present invention.

Referring to FIG. 5, the flexographic coupled offset printing apparatus according to the embodiment of the present invention includes a coating printer 100, a scratch printing machine 200, and a scratch upper printing machine 300.

The coating printer 100 applies a coating liquid in a flexographic printing manner on a predetermined scratch area on a primarily printed printing paper.

At this time, the printing paper is firstly printed on one side or both sides by an offset printing apparatus and provided as a sheet (sheet type), and the printing paper is a scratch area on which a character or a pattern is printed first with the opaque scratch ink. The concealment may be an online usable gift certificate or a lottery ticket, and serial numbers may be numbered by the numbering device at the time of printing by the offline printing apparatus.

The scratch printer 200 prints an opaque scratch-off ink by flexographic printing on the scratch area to which the coating liquid is applied. Here, the scratch ink refers to an opaque ink which is scraped off. Scratch inks, for example, are used for scratches found in lotteries and cultural vouchers, and special inks are used to print foil paper covering the front of the lottery. There are many kinds of such scratch inks such as silver, brass, gold, and the like, for example, silver scratches are used to peel off the foil but not to damage the printed letters and the paper surface under it. At this time, the silver scratch ink is mainly composed of a component called 'Sovereign silver', and the silver powder, which is a metal, is finely processed and dispersed in a dispersion medium to make a colloidal state, and then manufactured as ink. will be.

The scratch upper printing machine 300 prints predetermined printing contents on the scratch upper portion by offset printing.

In this case, the coating printer 100, the scratch printing machine 200 and the scratch upper printing machine 300 are each installed separately in the offline form, the coating printing machine 100 and the scratch printing machine 200 on the offset type printing machine Flexographic printing presses are combined. That is, the coating printer 100 and the scratch printing machine 200 directly print only the scratch area of the printing paper through a convex portion formed on each plate corresponding to the scratch area.

Therefore, the flexographic combined offset printing apparatus according to the embodiment of the present invention can be easily installed in a narrow space and can be printed in small quantities in a small space by combining the flexographic printing machine on the offset printing machine. Firstly, scratches can be easily printed on offset-printed printing paper.

On the other hand, Figure 6 is a block diagram of a coating printing machine in a flexographic combined offset printing apparatus according to an embodiment of the present invention.

Referring to FIG. 6, in the flexographic coupled offset printing apparatus according to the embodiment of the present invention, the coating printer 100 includes a primary paper feeding unit 110, a coating printing unit 120, and a primary discharge unit 130. do.

The primary paper feeding unit 110 supplies the printing paper provided in the sheet to the coating printing unit 120.

The coating printing unit 120 coats and dries the coating liquid on the scratch area of the printing paper supplied by the primary paper feeding unit 110 by flexographic printing. In this case, the coating printing unit 120, the first UV (ultraviolet ray) coating unit 121 for the first UV coating to prevent the surface treatment and the surface of the scratch area of the printing paper supplied by the primary paper feeder in advance ; A primary UV lamp drying unit 122 for drying the primary UV-coated printing paper primarily with a UV lamp; A secondary UV coating part 123 for UV coating for a smooth surface treatment of the printing paper dried by the primary UV lamp drying part 122; And it may include a secondary UV lamp drying unit 124 for drying the secondary UV coated printing paper with a UV lamp, but is not limited thereto.

The primary discharge unit 130 stacks the printing paper on which the coating printing is completed by the coating printing unit 120. Subsequently, the printing paper on which the coating printing is completed may be inspected by the inspector.

7 is a block diagram of a scratch printing machine in the flexographic combined offset printing apparatus according to the embodiment of the present invention.

Referring to FIG. 7, in the flexographic combined offset printing apparatus according to the exemplary embodiment of the present invention, the scratch printer 200 may include a secondary paper feeder 210, a scratch printer 220, a dryer 230, and a secondary Discharge unit 240 is included.

The secondary paper feeder 210 inspects the printing paper laminated by the primary discharge unit 130 of the coating printer 100, and then supplies the printing paper coated with the scratch area to each sheet.

The scratch printing unit 220 prints the scratch-off ink, which is opaque by a flexographic printing method, on the printing paper coated with the scratch area supplied by the secondary paper feeder 210. FIG. 9 and FIG. This will be described later with reference to FIG. 10.

The drying unit 230 may dry the printing paper on which the scratch area is printed with the scratch ink, and may be, for example, an IR lamp dryer which is dried by an IR lamp.

The secondary discharge unit 240 stacks the printing paper dried by the drying unit 230, and subsequently the printing paper on which the scratch printing is completed can be inspected by the inspector.

8 is a block diagram of a scratch upper printing machine (rolling machine) in the flexographic combined offset printing apparatus according to the embodiment of the present invention.

Referring to FIG. 8, in the flexographic combined offset printing apparatus according to the embodiment of the present invention, the scratch upper printing machine 300 is a winding type (money) printing machine, and a tertiary sheet feeding unit 310 and a scratch upper printing unit 320. And a tertiary discharge unit 330.

The tertiary sheet feeding unit 310 inspects the print sheets stacked by the secondary discharge unit 240 of the scratch printer 200, and then supplies the sheet of printing sheets with the scratch area printed with opaque scratch ink. .

The scratch upper printing unit 320 prints a predetermined print content on the upper portion of the scratch area of the printing paper printed with the opaque scratch ink by offset printing. At this time, the scratch upper printing unit 320, the primary UV printing unit 321 for UV printing primarily on the upper portion of the scratch area of the printing paper supplied by the tertiary feeder for scratch printing complementary color; A primary UV lamp drying unit 322 for drying the primary UV-printed printing paper primarily with a UV lamp; A secondary UV printing unit 323 for UV printing on the upper portion of the scratch area of the printing paper dried by the primary UV lamp drying unit for secondary winding (amount) operation; And it may include, but is not limited to, a secondary UV lamp drying unit 324 for drying the second UV-printed printing paper with a UV lamp.

 The tertiary discharge unit 330 stacks the printing paper on which the scratch top is printed by the scratch upper printing unit.

9 is a detailed block diagram of a scratch printing machine in the flexographic combined offset printing apparatus according to the embodiment of the present invention.

9, in the flexographic coupled offset printing apparatus according to the embodiment of the present invention, the scratch printing machine 200 may include a secondary paper feeder 210, a scratch printer 220, a drying unit 230, and two. The vehicle discharge unit 240 and the ink unit 250 may be included.

In general, the scratch printer 200 is largely divided into a secondary feeder 210, a scratch print unit 220, and a secondary discharge unit 240. In this case, the secondary feeder 210 supplies paper and prints the paper. 220 forms an image by transferring the ink to the printing paper, the discharge unit 240 serves to stack the printed matter to the next process.

In detail, the paper feeding unit 210 is a device for stably supplying printing paper, and sets a paper and a machine for feeding paper, and a suction head type feeding device 211, a blowing device 212, and an electrostatic removing device. , Sheet detection device 213 and paper alignment device 214.

The blower 212 blows air from the front, both sides, and the back into the printing paper of the feeder for smooth separation of the sheet into the suction head type feeder 211. At this time, the air pressure is adjusted in consideration of the thickness and properties of the printing paper.

The static elimination device is installed in the feeder 210 to remove the static electricity generated in the printing paper, wherein the static electricity generated in the printing paper does not affect the printing state, but is from the feeder 210 to the delivery unit 240 after printing. It can cause frequent stoppages because it prevents the printing paper from running smoothly.

In the sheet type printing machine, the double sheet detecting device 213 is mounted to prevent two sheets of paper from entering the printing machine.

The paper aligning device 214 is for aligning the printing paper when the printing paper is fed, before the printing paper is caught by the gripper, that is, just before being fed into the printing unit 220. have.

The ink collection 251 of the ink portion 250 is a device for storing ink, and the screen roller (or anilox roller) 252 adjusts the amount of transition ink by using a doctor blade for the opaque scratch ink provided from the ink roller. It serves to provide a uniform ink coating.

The printing unit 220 is for delivering the ink of the plate to the printing paper, and includes a plate (resin plate) 221, a pressing tube 222 and the like.

The drying unit 230 is for drying the printing paper, there is an IR lamp method of drying by heat using infrared rays and a UV lamp of instantaneously and chemically drying the ink using ultraviolet rays, the implementation of the present invention In the flexographic coupled offset printing apparatus according to the example, the drying unit 230 of the scratch printing machine 200 may be an IR lamp drying 231.

The delivery unit 240 is for stacking printed matters, and may include, for example, a delivery device 241 for transferring paper using a conveyor belt, and the delivery device 241 connects the printing unit and the unit. It prevents the paper from being scratched and moves it safely to the next unit.

10 is a view for explaining a printing method of the flexographic combined offset printing apparatus according to an embodiment of the present invention.

Referring to FIG. 10, the scratch printing machine 200 of the flexographic coupled offset printing apparatus according to the embodiment of the present invention may include a scratch ink collection 251, an ink roller 253, and a screen roller. 252, the doctor blade 254, the plate 221, and the impression 222 may be included.

The scratch ink collection 251 stores the opaque scratch ink 255 to continuously supply a certain amount of scratch ink.

The ink roller 253 is buried in the opaque scratch ink 255 from the ink collection 251 to form an ink film.

The screen roller 252 is also referred to as an anilox roller, and the opaque scratch ink 255 provided from the ink roller 253 is adjusted by the doctor blade 254 to provide a uniform ink coating.

The plate 221 is a cylinder to which the printing plate is caught, and is formed of only a resin plate or rubber, and receives the opaque scratch ink 255 from the screen roller 252 or the anilox roller to transfer to the printing paper 400. In addition, the plate 221 may be formed to be convex at a predetermined height corresponding to the position of the scratch region, and may include at least one convex portion 223 for printing the opaque scratch ink on the scratch region. Here, the printing paper 400 is primarily printed on one side or both sides by an offset printing apparatus and provided in a sheet (leaflet type).

The impression cylinder 222 is engaged with the plate 221 to provide pressure to the printing paper 400 to assist in the transfer of the opaque scratch ink 255.

The flexographic combined offset printing apparatus according to the embodiment of the present invention is a method in which a flexographic printing machine is mounted on an offset printing press, and easily prints a scratch on a printing paper primarily offset printed by the offset printing apparatus. In this way, it can be easily installed in a narrow space and small quantity printing of multiple types is possible.

On the other hand, Figure 11 is a table for comparing the characteristics of the flexographic combined offset printing apparatus and the conventional flexographic printing press according to an embodiment of the present invention.

As shown in FIG. 11, a conventional flexographic printing press is suitable for printing a large number of small items, and takes up a large space because it is a rotatable printing method. The raw material loss rate is high because the in-line method is mainly adopted as a large roll-type machine. On the contrary, the flexographic combined offset printing apparatus according to the embodiment of the present invention can be easily installed in a narrow space and a small quantity of various kinds of printing can be performed. In addition, since the coating press, the scratch press, and the scratch upper press are separately installed in the in-line type rather than the in-line type, the loss rate of raw materials can be lowered, and high quality printing is possible by the first precision printing by the offset printing machine. The press can be manufactured with a manufacturing cost of less than 20% compared to the flexographic press.

12A and 12B are photographs showing a primary paper feeder and a primary discharge part of the coating printer in the flexographic combined offset printing apparatus according to the embodiment of the present invention, respectively.

In the flexographic combined offset printing apparatus according to the embodiment of the present invention, the coating printer 100 includes a primary paper feeding unit 110 and a coating printing unit 120 as shown in FIG. 12A, and FIG. 12B. It may include a primary discharge unit 130 as shown in. Here, the primary feeder 110 and the primary discharge unit 130 is the secondary feeder 210 and the secondary discharge unit (210) of the scratch printing machine 200 in the flexographic combined offset printing apparatus according to an embodiment of the present invention ( It is apparent to those skilled in the art that the present invention may be similarly applied to the method 240, and also similarly to the tertiary feeder 310 and the tertiary discharge unit 340 of the scratch upper printing machine 300.

Figure 13 shows a dryer 230 of the scratch printer 200 in the flexographic combined offset printing apparatus according to an embodiment of the present invention, Figure 14 is a flexographic combined offset printing apparatus according to an embodiment of the present invention Is a photograph showing the scratch upper printing part 320 of the scratch upper printing machine (300).

On the other hand, Figure 15 is a photograph for explaining a coating printing machine in the flexographic combined offset printing apparatus according to an embodiment of the present invention, respectively.

In the flexographic combined offset printing apparatus according to the embodiment of the present invention, the coating printing machine is formed with a coating printing unit as shown in FIG. 15, wherein the coating liquid 141 is supplied to the coating printing unit, and the scratch of the printing paper. The coating liquid 141 is applied to the area.

16A to 16C are photographs for explaining a scratch printing machine in the flexographic combined offset printing apparatus according to the embodiment of the present invention, respectively.

In the flexographic combined offset printing apparatus according to the embodiment of the present invention, the scratch printing machine 200 includes, as illustrated in FIG. 16A, a plate cylinder 221, a pressure cylinder 222, and a screen roller or anilox roller 252. The reference numeral 260 denotes an operation panel for operating the scratch printing machine 200. At this time, in the flexographic combined offset printing apparatus according to an embodiment of the present invention, the scratch printing machine 200 is a flexographic printing machine combined on an offset printing machine, and the scratch printing on the printing paper is printed in a flexographic method. However, it shows that it is operated by the operation panel of the offset printing machine formed in the lower part. That is, the coating printing press, the scratch printing press and the scratch upper printing press are separately installed in an off-line form. In this case, the coating printing press 100 and the scratch printing press 200 may be a flexographic printing press on an offset printing press. Are combined to print a scratch. At this time, Fig. 16B shows the front portion of the scratch printer as seen from the secondary paper feeder side. In addition, as shown in Fig. 16C, reference numeral 221 denotes a plate formed of a resin plate, reference numeral 222 denotes a tenderness, reference numeral 223 denotes a convex portion formed on the plate 221, and the scratch area described above. Correspondingly, scratch ink is actually printed on the printing paper.

On the other hand, Figure 17 is a photograph for explaining a scratch upper printing machine in the flexographic combined offset printing apparatus according to an embodiment of the present invention.

As shown in FIG. 17, in the flexographic combined offset printing apparatus according to the embodiment of the present invention, the scratch upper printing part 320 of the scratch upper printing machine paints a character or a pattern on the scratch. In the embodiment, the winding amount (amount) is printed on the scratch.

Meanwhile, FIGS. 18A to 18C are diagrams illustrating printing papers printed by the flexographic combined offset printing apparatus according to the embodiment of the present invention, respectively.

The printing paper 400 printed by the flexographic combined offset printing apparatus according to the embodiment of the present invention is an online / offline combined gift certificate, and FIG. 18A shows a pin number 410 and a publication date 420 in the scratch area. It is printed sequentially, and shows that the coating liquid 430 is applied by the flexographic printing method on the pin number 410 and the issue date 420. FIG. 18B shows that the opaque scratch ink is printed by flexographic printing on the coating liquid 430 of the scratch area, so that the scratch 440 is formed, and FIG. 18C shows the winding amount (amount) 450 on the scratch 440. This is printed by the offset printing method. At this time, the printing paper 400 is primarily printed by an offset printing press, providing high quality by precision printing, and reducing the loss of raw materials by providing a single sheet rather than an inline method. In addition, the flexographic combined offset printing apparatus according to an embodiment of the present invention, the coating printing press, the scratch printing machine and the scratch upper printing machine are each installed separately in an offline form, so that it can be easily installed in a narrow space and print a small quantity of multi-type Is possible.

The foregoing description of the present invention is intended for illustration, and it will be understood by those skilled in the art that the present invention may be easily modified in other specific forms without changing the technical spirit or essential features of the present invention. will be. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive. For example, each component described as a single type may be implemented in a distributed manner, and similarly, components described as distributed may be implemented in a combined form.

The scope of the present invention is shown by the following claims rather than the above description, and all changes or modifications derived from the meaning and scope of the claims and their equivalents should be construed as being included in the scope of the present invention. do.

100: coating printing machine 200: scratch printing machine
300: upper scratch paper (winding type) printing machine 400: printing paper
110: primary feed unit 120: coated printing unit
130: primary discharge unit 210: secondary feed unit
220: scratch printing unit 230: IR lamp drying unit
240: secondary discharge portion 250: scratch ink portion
310: tertiary feed unit 320: scratch upper printing unit
330: the third discharge unit
121: primary UV coating unit 122: primary UV lamp drying unit
123: secondary UV coating unit 124: secondary UV lamp drying unit
221: plate (resin plate) 222: tender
223: convex portion 321: primary UV printing portion
322: primary UV lamp drying unit 323: secondary UV printing unit
324: secondary UV lamp drying unit 251: ink collection
252: screen (Anilox) roller 253: ink roller
254: doctor blade 255: scratch ink

Claims (13)

A coating printer for applying a coating solution in a flexographic printing method onto a predetermined scratch area on a primarily printed printing paper;
A scratch printer for printing scratch-off ink, which is opaque, by a flexographic printing method on the scratch area to which the coating liquid is applied; And
Scratch upper printing machine for printing a predetermined print content on the upper portion of the scratch by offset printing
Including,
The coating printing press, the scratch printing press and the scratch upper printing press are separately installed in the off-line form, and the coating printing press and the scratch printing press are flexographically coupled to the flexographic printing press on the offset printing press. Mold offset printing device. The method of claim 1,
And the coating printer and the scratch printing machine directly print only the scratch area of the printing paper through a convex portion formed on each plate corresponding to the scratch area. The method of claim 1,
The printing paper is a flexographic combined offset printing apparatus, characterized in that the single-sided or both-sided printing by the offset printing apparatus is provided in a single sheet (sheet type). The method of claim 3,
The printing paper is an online usable gift certificate or a lottery ticket that hides a scratch area printed with letters or patterns primarily with the opaque scratch ink, and the serial numbers are respectively numbered by a numbering device at the time of printing by the offline printing device. Flexographically coupled offset printing apparatus, characterized in that. The method of claim 3, wherein the coating printer,
A primary paper feeder supplying the printing paper provided in the sheet;
A coating printing unit for applying and drying the coating liquid by flexographic printing on the scratch area of the printing paper supplied by the primary paper feeding unit; And
Primary discharge unit for laminating the printing paper coating coating is completed by the coating printing unit
Flexographically coupled offset printing apparatus comprising a. The method of claim 5, wherein the coating printing unit,
A primary UV (ultraviolet) coating unit for first surface-treating the scratch area of the printing paper supplied by the primary paper feeding unit and UV coating to prevent absorption;
A primary UV lamp drying unit for drying the primary UV coated printing paper with a UV lamp first;
A second UV coating part which is second UV coated for smooth surface treatment of the printing paper dried by the first UV lamp drying part; And
Second UV lamp drying unit for drying the second UV-coated printing paper with a UV lamp secondary
Flexographically coupled offset printing apparatus comprising a. The method of claim 5, wherein the scratch printing machine,
A secondary paper feeder for inspecting the printing paper laminated by the primary discharge unit of the coating printer, and then supplying each sheet of printing paper coated with the scratch area;
A scratch printing unit printing scratch-off ink, which is opaque by a flexographic printing method, on a printing sheet coated with a scratch area supplied by the secondary paper feeder;
A drying unit drying the printing paper on which the scratch area is printed with the scratch ink; And
Secondary discharge unit for laminating printing paper dried by the drying unit
Flexographically coupled offset printing apparatus comprising a. The method of claim 7, wherein the scratch printing unit,
A scratch ink collection for storing the opaque scratch ink to continuously supply a predetermined amount of scratch ink;
An ink roller (Ink Roller) to bury the opaque scratch ink from the ink collection to form an ink film;
A screen roller which provides a uniform ink coating by adjusting the amount of transition ink by the doctor blade using the opaque scratch ink provided from the ink roller;
A cylinder on which a printing plate is caught, comprising: a plate receiving opaque scratch ink from the screen roller and transferring to the printing paper; And
Impression cylinder to engage the plate cylinder and provide pressure to the printing paper to assist in the transfer of the opaque scratch ink.
Flexographically coupled offset printing apparatus comprising a. The method of claim 8,
And the plate is convexly formed at a predetermined height corresponding to the position of the scratch area and includes a convex portion for printing the opaque scratch ink on the scratch area. The method of claim 7, wherein
The drying unit is a flexographic combined offset printing apparatus, characterized in that the IR lamp dryer is dried by an infrared (IR) lamp. According to claim 7, wherein the scratch top printing machine,
A tertiary paper feeder which inspects the print sheets stacked by the secondary discharge unit of the scratch printer, and then supplies the sheet of printing paper with the scratch area printed with opaque scratch ink in a single sheet;
A scratch upper printing unit printing predetermined printing contents on an upper portion of the scratch area of the printing paper printed with the opaque scratch ink by an offset printing method; And
A tertiary discharge unit for laminating printing paper on which the scratch top is printed by the scratch upper printing unit
Flexographically coupled offset printing apparatus comprising a. The method of claim 11, wherein the scratch upper printing portion,
A primary UV printing unit which primarily UV-prints an upper portion of the scratch area of the printing paper supplied by the tertiary paper feeding unit for a scratch print complementary color;
A primary UV lamp drying unit for drying the primary UV-printed printing paper primarily with a UV lamp;
A secondary UV printing unit performing UV printing on the upper portion of the scratch area of the printing paper dried by the primary UV lamp drying unit for secondary UV printing for a paper roll operation; And
Second UV lamp drying unit for drying the second UV-printed printing paper with a UV lamp second
Flexographically coupled offset printing apparatus comprising a. A printed matter printed by the flexographic combined offset printing apparatus according to any one of claims 1 to 12.

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