KR20030013988A - Print template fabricating system and fabricating method thereof - Google Patents

Abstract

PURPOSE: A print template making system and its preparation method are provided, to allow a print template to be manufactured through printing and exposing method by ink-jet printing without the modification of a PS plate, thereby simplifying the process and improving the productivity. CONSTITUTION: The print template making system comprises an ink-jet printer(30) for printing with a light screening ink on a PS plate(10) where a photosensitive membrane is formed, according to the print data pattern received from a computer(40); an exposure device(50) for irradiating the light to the PS plate passed through the ink-jet printer; and a development device(60) for removing the photosensitive membrane exposed selectively at the exposure device according to the print data pattern by using an etching solution. Preferably the print template making system comprises further a coating device(20) for forming an ink spreading prevention membrane on the photosensitive membrane of the PS plate before the PS plate is supplied to the ink-jet printer.

Description

Print template fabricating system and fabrication method

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a printing template manufacturing system and a method for manufacturing the same, and more particularly, to a printing template manufacturing system and a method for producing the printing template by an ink printing method.

The print template refers to a plate in which irregularities are formed in a form corresponding to an image or text information of a content to be printed when a large amount of the same content such as a newspaper or a magazine is printed.

As a prior art for manufacturing such a printing template, a film is prepared in advance corresponding to a pattern of a template to be manufactured, and then the film is exposed while the photocurable photoresist is aligned on a PS plate formed on a metal plate, and the exposed portion is exposed to an etchant. There is a way to produce by etching.

The above printing template manufacturing method has disadvantages in that the film has to be manufactured separately and the film alignment is artificially produced, so that an alignment error may occur, and the inconvenience of having to replace the film for each PS plate has a disadvantage in that productivity is reduced. .

In order to improve these disadvantages, a method of attaching a PS plate to a circular drum, photosensitive by scanning a beam with an optical scanning device on a PS plate attached to a rotating drum, and then removing the exposed part has been developed and used. In order to scan light onto a single or quarter-size PS plate, the optical scanning angle must be large, and various optical elements must be added to suppress aberration. In addition, there is a disadvantage in that the size of the PS plate to be applied is limited or a plurality of light scanning devices may be used in the case of applying the light processing screws having a light scanning angle in a range of less distortion.

As another disadvantage, the size of the system is increased because a drum having a diameter corresponding to the length of the maximum size PS plate to be applied must be applied in order to produce a printing template at one time after the drum mounting of the PS plate.

In addition, the cost of the optical scanning device is expensive, a process that is required to attach to the circular drum by deforming the PS plate provided on a flat plate in a circular form, there is a disadvantage that the productivity is low.

The present invention was devised to improve the above problems, and an object thereof is to provide a printing template manufacturing system and a method of manufacturing the same, which can easily produce a printing template without deforming the PS plate supplied on a flat plate. have.

1 is a block diagram showing a printing template manufacturing system according to the present invention,

FIG. 2 is a view schematically illustrating a process of manufacturing a PS plate to which each device of the printing template manufacturing system of FIG.

Figure 3 is a schematic cross-sectional view showing an example of the loader of Figure 1,

4 is a process flow diagram showing a printing template manufacturing process according to the present invention,

5 is a cross-sectional view showing a processing form of the PS plate for each process of FIG. 4.

<Description of the reference numerals for the main parts of the drawings>

10: PS plate 20: coating machine

30: inkjet printing machine 40: computer

50: exposure machine 60: developer

80: loader

In order to achieve the above object, a printing template manufacturing system according to the present invention includes an inkjet printing machine for printing a light blocking ink according to a print data pattern received from a computer on a PS plate on which a photosensitive film is formed; An exposure unit for irradiating light to the PS plate passing through the inkjet printing machine; And a developing device for removing the photosensitive film selectively exposed by the etching liquid through the exposure machine according to the print data pattern.

It is preferable that the said light shielding ink is black aqueous ink.

In addition, the coating machine for supplying the ink bleeding prevention film on the photosensitive film of the PS plate to the inkjet printer is further provided.

The developing unit may include a preprocessing unit which removes the light blocking ink and the ink bleeding prevention film by a water washing method; And a main processing unit which removes the exposed portion of the PS plate that has passed through the pretreatment unit with an etching solution.

It is preferable to further include a post-treatment unit for forming a scratch-resistant rubber film on the photosensitive film of the PS plate passed through the main processing unit.

In addition, the method of the present invention for producing a printing template by etching the PS plate on which the photosensitive film is formed in order to achieve the above object comprises the steps of printing with light-blocking ink according to the pattern to be formed on the PS plate; Exposing the PS plate printed with the ink; And removing the exposed portion of the PS plate that has undergone the exposure by etching.

Preferably, the step of coding the ink bleeding prevention film on the photosensitive film prior to the ink printing step.

Hereinafter, a printing template manufacturing system and a method of manufacturing the same according to a preferred embodiment of the present invention with reference to the accompanying drawings will be described in more detail.

1 is a block diagram showing a printing template manufacturing system according to the present invention.

Referring to the drawings, the printing template making system includes a coating machine 20, an inkjet printing machine 30, an exposure machine 50, a developing machine 60, a stacker 80, and a computer 40.

As the PS plate 10 is transferred from the coating machine 20 to the loading machine 70 by the conveying means, each device is arranged in an in-line form so that the production of the printing template can be completed without the operator's hand. desirable.

FIG. 2 is a view schematically illustrating a process of manufacturing a PS plate, in which each device of the printing template manufacturing system of FIG. 1 is arranged in an inline form and transported, as a printing template.

Hereinafter, each device will be described with reference to FIGS. 1 and 2.

The coder 20 is mounted on a known PS plate 10 having a photoresist film (see FIG. 5A; 12) in which a photocurable photosensitive material is formed to a predetermined thickness on a metal base plate (Fig. 5acka; 11) such as aluminum or an aluminum alloy. An ink bleeding prevention film (see Fig. 5A; 13) which can prevent bleeding of the aqueous ink is formed.

The coating liquid used for forming the ink bleeding prevention film is preferably applied with a water-soluble coating liquid which can be washed with water while maintaining the dots of the ink.

As an example, what is necessary is just to mix and apply the water-soluble material which melts in water, a binder, a neutral agent, and a viscosity adjustment material suitably, having adhesiveness. For example, about 60% and 35% of Silica P-125 (manufactured by Japan idenutsu Petro.co.Ltd), Binder 871-P (manufactured by BASF, Germany), and Glycerin X-100 (manufactured by BASF, Germany) , 5% mixed coating solution is applied.

Preferably, the coating machine 20 is rotated by a driving unit (not shown) on the transport path of the PS plate 10, and a plurality of upper and lower rollers 21 and 22 installed in a pair to face each other, and the roller ( It is provided with a coating liquid supply unit (not shown) for supplying the coating liquid through the row (23) on the surface of the 21) (22). Reference numeral 24 denotes a container for coating liquid recovery.

In addition, the upper / lower rollers 21 and 22 are structured so as to adjust the separation distance therebetween, that is, between the upper and lower rollers 21 and 22 to adjust the separation distance between the rollers 21 and 22. This makes it possible to form an ink bleeding prevention film of a desired thickness.

The coater 20 further includes a drying unit for drying the ink bleeding prevention film formed on the PS plate by the coating liquid. The drying unit is preferably a hot air blower 26 for blowing hot air to dry the ink spreading prevention film.

The inkjet printer 30 is connected to interface with the computer 40 and crosses the head 31 at a predetermined angle with the transfer direction of the PS plate in correspondence with, for example, orthogonal to, the print data transmitted from the computer 40. The ink supplied from the ink supply unit (not shown) is sprayed onto the PS plate 10 on which the ink bleeding prevention film is formed via the coating machine 20 while being transported and printed. The inkjet printer 30 is a known one including a feeder for aligning the PS plate and feeding the feed plate to a printing position, and a conveying unit for transferring the head by a driving source such as a step motor along the guide, and description of the detailed structure is omitted. The print data transmitted from the computer 40 is transmitted to the inkjet printer 30 so that the color data divided into Y, M, C, and K in the case of color correspond to each of the four PS plates 10.

Preferably, the ink supplied to the head 31 from the ink supply portion of the inkjet printer 30 is preferably black water ink which can be washed by water.

In addition, it is further provided with a detection sensor 35 for detecting the entry of the PS plate at a predetermined position so that the start of printing of the inkjet printer 30 can be detected. As an example, the detection sensor may include a light source 35a for irradiating light in a direction crossing the travel path at a position opposite to the base plate 11 of the PS plate 10 that is traveling, and a light receiving element 35b for receiving light. ) May be applied. In this case, the inkjet printer 30 may determine whether the PS plate has arrived from the input of a signal corresponding to the light blocking of the light receiving element 35b, and then proceed with the printing job after the set time.

The exposure machine 50 irradiates light to the PS plate 10 on which ink is printed in a desired pattern via the inkjet printer 30 to cure the photosensitive film of the PS plate 10 on which ink is not applied by exposure. Preferably, the exposure apparatus 50 is configured such that exposure can be performed in a shielded space so that external exposure of UV light harmful to a human body is suppressed.

The exposure apparatus 50 is preferably provided with a plurality of lamps spaced at predetermined intervals along the traveling path of the PS plate 10 in order to suppress immature exposure. The lamp 51 to which the exposure machine 50 is applied is preferably a UV lamp. More preferably, a lamp driving unit provided with a timer for adjusting an exposure time of the lamp 51 is applied to reflect the change in curing time according to the material of the photosensitive film to be applied.

Although not shown, a detection sensor for detecting the entry of the PS plate into the exposure machine 50 is further provided in the configuration as shown by reference numeral 35, and a lamp driving unit (not shown) of the exposure machine 50 is provided according to the entry signal of the detection sensor. It may be configured to sequentially turn on / off the lamp 51 of the opposite position in accordance with the transfer time of the PS plate 10.

The developing unit 60 removes the exposed portion of the PS plate 10 which has passed through the exposure unit 50 with an etchant that can etch a portion cured by exposure, that is, a portion to which ink is not applied.

Preferably, the developing device 50 includes a preprocessing portion 61 for removing the ink and the ink bleeding prevention film, and a main processing portion 65 for removing the exposed photosensitive film.

The pretreatment unit 61 is preferably provided so that the ink and the ink bleeding prevention film can be removed by a water washing method. That is, the pretreatment part 61 is provided with the brush roller 62 which removes ink and an ink bleeding prevention film, while brushing the PS board 10 with the water supplied from the injection part 63 which injects water. Reference numeral 64 denotes a recovery container for recovering the injected water.

The main processing unit 65 is configured to be etched with an etchant that removes the cured photosensitive film. The main processing unit 65 has a transfer roller 68 disposed in the etching liquid reservoir 66 in which the cured photoresist removal etchant 67 is stored so that the PS plate 10 is locked.

It is preferable to further include a post-treatment unit 70 for coating the printing template with a protective layer, for example, a rubber solution, in order to suppress scratches and damages during loading and transportation of the printing template formed by removing the exposed photosensitive film. . Of course, you may form a protective layer from materials other than rubber liquid.

The aftertreatment unit 70 includes a rubber liquid injection unit 71, a roller 72, a rubber liquid recovery tank 73, and a hot air blower 74 for drying the rubber film so as to spray the rubber liquid and apply the rolling method.

As described above, the coating machine 20, the inkjet printing machine 30, the exposure machine 50, and the developing machine 60 are supplied from a feeding device (not shown), and the PS plate 10 introduced into the coating machine 20 is in-line. The printing template manufacturing process can be completed at a time because the printing template can be completed while being transferred. Preferably, although not shown, in order to control the feed speed of the PS plate, a plurality of sensors capable of detecting the moving speed of the PS plate are installed on the feed plate path of the PS plate, and the movement speed of the PS plate using the signal of the sensor. And a driving unit for driving the feed roller so that the PS plate can be transferred at a set speed.

In addition to the conveying roller method, the conveying apparatus for conveying the PS plate may be applied to various known methods, for example, a conveying method to a loading position by vacuum suction.

In addition, it is preferable to further include a feed plate device for supplying the PS plate to the coating machine 20, as an example of the feed plate device, a table (not shown) for laminating the packaged plate in a laminated state, and the plate loaded on the table It may be composed of an adsorption transporter (not shown) to be transported to the coating machine 20 by adsorbing one by one from the top.

Preferably, it is preferable to further include a stacker 80 which can load the completed printing template via the developing unit 60. As an example of the loader 80, as shown in FIG. 3, the inclined plate 81 for obliquely seating the PS printing template 10, which is manufactured through the developing unit 60 and advanced by a roller, and the inclined plate 81, The inclined plate driver 83 is provided to rotate the inclined plate 81 in a forward / reverse direction at a position spaced apart from the rotation center 82 by a predetermined distance. The inclined plate driver 83 may be a cylinder applied. The stacker 85 is installed to be retractable by rotating the inclined plate to reach the inclined plate 81 so that the stacked PS printed plate 10 is stacked so that the stacker 85 is inclined so as to seat the PS printed plate 10. A plurality of PS plates can be sequentially loaded by advancing a predetermined distance every time a PS plate is loaded in a direction away from the inclined plate 81 by a skunk driver (not shown).

Hereinafter, a printing template manufacturing process by the printing template manufacturing system will be described with reference to FIGS. 4 to 5.

First, the coating liquid is applied at a room temperature and 50 to 50 by the coating machine 20 in which the separation distance between the upper and lower rollers 21 and 22 is controlled with respect to the PS plate 10 transferred from the feed plate device (not shown). It is dried by hot air at about 60 degrees to form an ink bleeding prevention film as shown in Fig. 5A (step 100). Preferably, the ink bleeding prevention film 13 has a thickness of about 0.03 to 0.05 mm.

Subsequently, a print generated by using a text editor (not shown) or a dedicated text editor (not shown) for printing template manufacturing, which is installed on a computer, on the PS plate 10 on which the ink bleeding prevention film 13 is formed via the coating machine 20. The inkjet printer 30 sprays the ink 14 as shown in FIG. 5B while printing, transferring the head 31 in a pattern corresponding to the print data transmitted from the computer 40 by a print command for the data. (Step 110).

Subsequently, the PS plate 10 coated with the ink 14 by UV light is exposed to the exposure apparatus 50 for about 10 to 15 seconds (step 120). Then, as shown in FIG. 5C, light is blocked on the lower portion 12a of the photosensitive film 12 coated with ink, and the lower portion 12b of the region not coated with ink is hardened by exposure.

In the developing device 60, the ink bleeding prevention film 13 is first removed using a water washing method, that is, water and a brush roller (see FIG. 5D).

Then, when the hardened photoresist film 12b is wet-etched by the etchant, a printing template having a shape in which only the region to which the desired ink 14 is applied is protruded is produced as shown in FIG. 5E (step 130).

Finally, as shown in FIG. 5F, a predetermined thickness protective layer 15 is coded with a rubber-like material (step 140).

As described so far, according to the printing template manufacturing system and the manufacturing method thereof according to the present invention, it is possible to manufacture a printing template by printing and exposure method by inkjet printing without changing the conventional plate-like PS plate processing process This simplifies and improves production lines.

Claims (9)

An inkjet printer for printing the PS plate on which the photoresist film is formed with light blocking ink according to a print data pattern received from a computer; An exposure unit for irradiating light to the PS plate passing through the inkjet printing machine; And a developing device for removing the photosensitive film selectively exposed in accordance with the print data pattern through the exposure apparatus by an etching solution. The printing template manufacturing system according to claim 1, wherein the light blocking ink is a black aqueous ink. The printing template manufacturing system according to claim 1, further comprising a coating machine for coding an ink bleeding prevention film on the photosensitive film of the PS plate and supplying the ink bleeding prevention film to the inkjet printing machine. The method of claim 3, The developing unit may include a preprocessing unit which removes the light blocking ink and the ink bleeding prevention film by a water washing method; And And a main processing unit which removes the exposed portion of the PS plate that has passed through the pretreatment unit with an etching solution. The method of claim 4, wherein And a post-processing unit for forming a scratch prevention rubber film on the photosensitive film of the PS plate which has passed through the main processing unit. In the method of manufacturing a printing template by etching the PS plate on which the photosensitive film is formed, Printing with light blocking ink according to a pattern to be formed on the PS plate; Exposing the PS plate printed with the ink; And removing the exposed portion of the PS plate that has undergone the exposing step by etching. The method of claim 6, further comprising: coding an ink bleeding prevention film on the photosensitive film before the ink printing step. The method of claim 5, The etching step may include a pre-etching step of removing the light blocking ink and the ink bleeding prevention film; And a main etching step of removing the exposed portion of the photosensitive film of the PS plate that has undergone the linear etching step. The method of claim 8, further comprising a post-treatment step of forming a scratch prevention rubber film on the PS plate that has undergone the main etching step.