KR101686289B1 - Roll printing apparatus and roll printing method using the same - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a roll printing apparatus and a roll printing method using the roll printing apparatus, and more particularly, it relates to a roll printing apparatus and a roll printing method using the roll printing apparatus, The present invention relates to a roll printing apparatus and a roll printing method using the same, which can improve print quality and improve printing accuracy.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a roll printing apparatus and a roll printing method using the roll printing apparatus,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a roll printing apparatus and a roll printing method using the roll printing apparatus, and more particularly, it relates to a roll printing apparatus and a roll printing method using the roll printing apparatus, The present invention relates to a roll printing apparatus and a roll printing method using the same, which can improve print quality and improve printing accuracy.

The roll printing apparatus and the roll printing method using the roll printing apparatus according to the present invention can be applied to roll-to-roll off-set printing of a film-type metal mesh.

In general, fine patterns used in semiconductor circuit devices and display devices such as LCDs and PDPs are formed by photolithography using a photoresist and are generally manufactured through coating, exposure, development, cleaning, and curing.

However, although photolithography has the advantage of precisely obtaining a desired pattern, it is necessary to perform a lot of steps, to use various materials to maximize the effect of the photoresist, and to use a large amount The photoresist of the photoresist is consumed.

In recent years, a technique of obtaining a fine pattern by a roll printing method has been proposed and researched to overcome the shortcomings of such photolithography.

The roll printing apparatus and method for pattern formation can be applied in various ways and can be applied not only to a color and BM (Black Matrix) pattern of R (Red), G (Green), and B Film Transistor), PDP (Plasma Display Panel), and pattern transfer of barrier rib material.

These general roll printing apparatuses generally comprise a cotter, a printing roll, a printing roll driving apparatus, a cliche or a substrate stage and a driving device for the stage line as the most basic components, and additionally, they are absorbed in the cleat and / A drying device for drying the blanket by absorbing the solvent, and various sensor devices may be additionally provided.

Meanwhile, various methods have been researched and developed in order to improve the precision and print quality of a print pattern formed by a roll-to-roll printing apparatus and method. Among them, in order to improve the accuracy of the print pattern and the print quality, it is an important factor to prevent meandering of the printed film.

To this end, it is general to prevent meandering of the printed film by using a skew prevention device such as an EPC (Edge Position Controller). However, these devices have a problem in that roll touch of the printed surface after printing on the printed film is impossible, and the meandering of the printed film can not be effectively prevented.

Korea Patent Publication No. 2013-0063146

Accordingly, the present invention uses a combination of at least one of nipping rolls, tender modules, adsorption rolls, and action rolls to prevent meandering of the printed film, thereby improving print quality, A roll printing apparatus capable of improving the accuracy and a roll printing method using the same.

In order to solve the above-mentioned problems, the present invention provides a printing apparatus comprising: a print film dispenser and a print film collecting unit capable of continuously providing a print film; A print film supporting unit for supporting the print film between the supplying unit and the supplying unit; A printing roll for transferring a printed pattern onto the print film on the support; And one or more divided nip rolls provided on at least one of the support portion and the support portion and between the support portion and the recovery portion to prevent meandering of the printed film, Lt; / RTI >

The roll printing apparatus further includes at least one tender module provided at one or more of the support portion and the support portion and between the support portion and the recovery portion, and clipping both ends of the print film .

It is preferable that the print film supporting portion is in the form of a roll.

In addition, it is preferable that at least one of the print film supporting portion, the inlet-side feeding roll, and the outlet-side feeding roll is a suction roll that maintains tension on the print film.

It is preferable that the outer side of the print film supporting portion is made of an adhesive material so as to prevent meandering of the printed film.

It is preferable that the roll printing apparatus further includes an action roll provided between the support portion and the support portion and preventing skewing of the printed film by moving in left and right and up and down directions.

Preferably, the print film supply unit is an unwinder, and the print film recovery unit is a rewinder. Here, the roll printing apparatus is preferably for off-set printing. Here, an oven for drying the printed film may be provided at a front end of the printed film recovery unit.

In addition, the printed film is preferably a film-type metal mesh.

Further, in order to solve the above problems, the present invention provides a roll printing method using the roll printing apparatus described above.

According to the present invention, it is possible to effectively prevent meandering of the printed film by placing one or more divided nip fingers and / or tender modules at the front end and / or the rear end of the pattern printing process.

In addition, since one or more divided nip fingers and / or tenter modules are in contact with a portion of the film other than the printing portion, there is an advantage that a roll touch of the printing surface can be performed after printing.

Particularly, by using at least one of the print film supporting portion (i.e., the back roll), the inlet side feeding roll and the outlet side feeding roll as the adsorption roll, the tension of the print film can be appropriately maintained and controlled, The meandering of the film can be effectively prevented.

With the above-described effects, the overall printing quality can be improved and the printing precision can be improved. Furthermore, the roll printing apparatus and the roll printing method using the roll printing apparatus according to the present invention can be effectively applied to a roll-to-roll offset printing method of a film-type metal mesh.

1 is a schematic view of a roll printing apparatus 100 according to an embodiment of the present invention.
2 is a view schematically showing a split nip fingroll 51 used in a roll printing apparatus 100 according to an embodiment of the present invention.
3 (a) and 3 (b) are schematic views of a tender module 60 used in the roll printing apparatus 100 according to an embodiment of the present invention.
4 is a schematic view of an inlet side feeding roll 70 as an adsorption roll used in the roll printing apparatus 100 according to an embodiment of the present invention.
5A and 5B are views schematically showing a print film supporting portion 30 (i.e., a back roll) as a roll form used in the roll printing apparatus 100 according to an embodiment of the present invention to be.
FIG. 6 is a schematic view of a roll printing apparatus 100 'according to another embodiment of the present invention.

Hereinafter, preferred embodiments of a roll printing apparatus and a roll printing method using the roll printing apparatus according to an embodiment of the present invention will be described with reference to the accompanying drawings. In this process, the thickness of the lines and the size of the constituent elements shown in the drawings may be exaggerated for clarity and convenience of explanation. In addition, the terms described below are defined in consideration of the functions of the present invention, which may vary depending on the intention or custom of the user, the operator. Therefore, the definitions of these terms should be described based on the contents throughout this specification.

FIG. 1 is a schematic view of a roll printing apparatus 100 according to an embodiment of the present invention. FIG. 2 is a sectional view of a divided nip fingrol (FIG. 1) used in a roll printing apparatus 100 according to an embodiment of the present invention. (A) and 3 (b) schematically illustrate a tender module 60 used in a roll printing apparatus 100 according to an embodiment of the present invention. And Fig. 4 is a view schematically showing an inlet side feeding roll 70 as an adsorption roll used in the roll printing apparatus 100 according to an embodiment of the present invention, and Figs. 5 (a) and 5 b) schematically shows a print film support 30 (i.e., a white roll) in the form of a roll used in the roll printing apparatus 100 according to an embodiment of the present invention.

1 to 5, a roll printing apparatus 100 according to an embodiment of the present invention includes a print film supplying unit 10, a print film collecting unit 20, a print film supporting unit 30, A printing roll 40 and one or more split nip rolls 51,52, 53,54. Further, it may further include a tender module 60 and an adsorption roll.

The roll printing apparatus 100 according to an embodiment of the present invention includes a feeder 10 for controlling the driving and positioning of the print film supplying unit 20 and the print film supplying unit 10 so as to enable intermittent continuous printing, feeder, and various control units. However, detailed description thereof will be omitted unless it is a core technical element of the present invention.

The printed film supplying unit 10 and the printed film collecting unit 20 serve to continuously provide the printed film F so that the printed film proceeds in one direction.

At this time, the printed film supplying unit 10 is an unwinder, and the printed film collecting unit 20 may be a rewinder, but it may be a component that can continuously supply the printed film F The configuration is not particularly limited.

Note that although not shown, an oven for drying the printed film F may be provided at the front end of the printed film collecting portion 20.

Here, the printed film F is provided continuously or intermittently by driving the print film supplying unit 10 and the print film collecting unit 20, and if the printed pattern to be printed can be effectively transferred, It is noted that the material and thickness thereof are not particularly limited. However, in the roll printing apparatus 100 according to an embodiment of the present invention, a film-like metal mesh is preferably used as the printed film F.

The print film supporting unit 30 serves to support the print film F between the print film supplying unit 10 and the print film collecting unit 20.

The printed film supporting portion 30 is preferably in the form of a roll.

Particularly, the print film supporting unit 30 plays a role of supporting the print film F to transfer the print pattern to the print film F, which will be described later. To this end, the print film supporting portion 30 may include a roll shaft 31 and a white roll 32. [

In this case, it is preferable that the driving speed of the roller, which is the print film supporting portion 30, is synchronized with the driving speed of the printing roll 40 that transfers the printed pattern. That is, it is preferable that the linear velocity driven by the print film supporting unit 30 coincides with the linear velocity driven by the printing roll 40. Due to such a configuration, a more precise pattern can be transferred.

Note that the driving of the printed film supplying unit 10 and the printed film collecting unit 20 described above is not stopped even during transfer of the printed pattern on the printed film F. [

The printing roll 40 performs a role of transferring the printed matter pattern to the printed film F on the printed film supporting portion 30. [

At this time, the printing roll 40 is coated with the printing material by a coating part (not shown), and after some of the printed material is removed by a cliche (not shown) provided on a stage for cliche mounting (not shown) The pattern is transferred onto the print film F positioned on the print film supporting portion 30. [

Although not shown, the printing roll 40 includes a point at which the printing material is applied to the printing roll 40 by the coating portion, a point at which the printing material pattern is formed by the cliche on the printing roll 40, It is possible to move freely between the point at which the printed matter pattern is transferred to the recording medium.

In this process, the printing roll 40 is moved in the direction of the printed film F by the driving of the printed film supplying unit 10 and the printed film collecting unit 20 and the rotating direction of the printing roll 40 Are configured to be parallel.

As such, the roll printing apparatus 100 according to an exemplary embodiment of the present invention is preferably used for off-set printing.

One or more divided nip rolls 51, 52, 53 and 54 may be provided between the print film providing portion 10 and the print film supporting portion 30 (i.e., the front end of the pattern printing process); And / or between the print film supporting portion 30 and the printed film recovery portion 20 (i.e., the rear end portion of the pattern printing process) to prevent meandering of the printed film F .

1, the one or more divided nip fingers 51, 52, 53 and 54 are arranged in the order of the print film support 30 (i.e., the back roll), the inlet side feeding roll 70, It should be noted that one or more rolls 71 may be positioned to nip at the surface of one or more rolls.

2, the divided nip fingers 51 each comprise two separated rolls 51a and 51b, and the two sides of the printed film F on both sides And serves to prevent meandering of the printed film F by contacting or holding the tension of the printed film F appropriately. On the other hand, on the lower side of the printed film F, the inlet-side feeding roll 70 is positioned.

Particularly, in order to prevent skewing and precise positioning of the printed film F, the split nip fingers 51 are controlled so as to be movable in the vertical direction, thereby imparting tension to the printed film F, Maintenance and blocking can be appropriately controlled.

The tender module 60 is disposed between the print film supplying portion 10 and the print film supporting portion 30 (i.e., the front end portion of the pattern printing process), like the split nip fingrol described above; And / or between the print film supporting portion 30 and the printed film recovery portion 20 (i.e., the rear end portion of the pattern printing process) to prevent meandering of the printed film F .

3, the tender module 60 includes one or more print film grippers 61a, 62a, 63a, and 64a, support portions 61b, 62b, 63b, and 64b that are connected to the grippers to support the grippers, And conveying means 65 capable of conveying the support portion in the conveying direction and / or the opposite direction of the print film F. [

Specifically, the tenter module 60 clamps both ends of the print film F using one or more of the print film holding portions 61a, 62a, 63a, and 64a and simultaneously supplies the print film F The supporting portions 61b, 62b, 63b and 64b are moved in the conveying direction of the printed film F and / or in the conveying direction, depending on the degree of tension applied to the printed film F and the meandering of the printed film F. [ It is possible to prevent meandering of the printed film F by appropriately moving in the opposite direction.

Here, the printed-film gripping portions located at positions opposed to each other in the printed-film gripping portion are a pair (for example, the printed-film gripping portions 61a and 63a and the printed-film gripping portions 62a and 64a) , Or they may move independently of one another.

On the other hand, any one or more of the print film supporting portion 30 (i.e., the back roll), the inlet-side feeding roll 70 and the outlet-side feeding roll 71 may be an adsorption roll. The inlet-side feeding roll 70 used as an adsorption roll serves to maintain tension on the print film F.

Specifically, the adsorption roll adsorbs the print film F using a vacuum to smoothly transport the film F in the advancing direction, and also plays a role of properly maintaining and controlling the tension at the front and rear ends of the adsorption roll.

Particularly, according to such an adsorption roll, it is possible to drive the tension before and after the adsorption roll differently, and there is no slip due to a change in tension or a change in the conveying speed, thereby scratching the surface of the printed film F, Can be suppressed.

Referring to FIG. 4, the adsorption roll has two or more vacuum pipes 71a and 72b at both ends, and a vacuum is induced from a vacuum device (not shown) connected to the vacuum pipes 71a and 72b, The print film F is held in close contact with the pressing plate 74 and the vacuum hole 73, and the tension is maintained.

In the present specification, at least one of the print film supporting portions 30 (i.e., the back roll), the inlet-side feeding roll 70 and the outlet-side feeding roll 71 has been described as an adsorption roll, May be provided.

According to such an adsorption roll, the tension of the print film F can be appropriately maintained and controlled, thereby effectively preventing meandering of the printed film F. [

In addition, the roll printing apparatus 100 according to an embodiment of the present invention may be formed of an adhesive material on the outer side of the print film supporting portion 30 to prevent meandering of the printed film F.

Specifically, the printed film supporting portion 30 may include a roll axis 31 and a white roll 32. At this time, by forming the outer side portion of the white roll 32 as the adhesive material portion 33, the printed film F Can be prevented from being slipped or warped.

It should be noted that the adhesive material 33 may be a material having adhesiveness such as silicon or other polymer, and in some cases, the back-roll 32 itself may be made of a material having adhesiveness.

In addition, the roll printing apparatus 100 'according to another embodiment of the present invention further includes an action roll 80 in addition to the above-described components (split nip fins, tender module, adsorption roll and adhesive back roll, etc.) .

The action roll 80 is provided between the print film supplying portion 10 and the print film supporting portion 30 (i.e., the front end portion of the pattern printing process), and as shown in Fig. 6, It is a form of roll set to be movable.

This action roll 80 can be used together with the above-described anti-skew components or in a separate combination, and is controlled to be movable in left and right and up and down directions while keeping in contact with the printed film F, It is possible to effectively control the running, warping, and the like of the printed film F.

Meanwhile, since the components of the action roll 80 and the technology related to the movement control use existing known components, a detailed description thereof will be omitted.

As described above, according to the roll printing apparatus and the roll printing method using the roll printing apparatus according to the present invention, the tension of the print film can be appropriately maintained and controlled by using various constituent elements, In particular, it is possible to roll-touch the printing surface after printing, thereby improving the printing quality as a whole and improving the printing precision.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention as defined in the appended claims. It will be understood that the present invention can be changed.

10: Printed film supply
20: Printed film recovery unit
30: Printed film support
31: roll axis 32: white roll
40: printing roll
51, 52, 53, 54: split type nip fingers
60: Tender module
61a, 62a, 63a, 64a:
61b, 62b, 63b, 64b:
65: conveying means
70: inlet-side feeding roll
71: Feeding roll on the outlet side
80: Action roll

Claims (9)

A print film supply unit and a print film recovery unit capable of continuously providing a print film;
A roll-shaped print film supporting unit for supporting the print film between the supply unit and the recovery unit;
A printing roll for transferring a printed pattern onto the print film on the support; And
And at least one divided nip roll provided at least one of the support portion and the support portion and between the support portion and the recovery portion to prevent meandering of the printed film,
Wherein the print film supporting portion is a suction roll for holding a tension on the print film.
The method according to claim 1,
The roll printing apparatus includes:
And at least one tender module provided at least one of the support portion and the support portion and between the support portion and the recovery portion and at least one tender module for clipping both ends of the printed film, Device.
delete The method according to claim 1,
Wherein at least one of the inlet-side feeding roll and the outlet-side feeding roll is a suction roll which maintains tension on the print film.
The method according to claim 1,
Wherein the outside of the print film supporting portion is made of an adhesive material to prevent meandering of the print film.
3. The method according to claim 1 or 2,
The roll printing apparatus includes:
Further comprising an action roll which is provided between said feed and said support and which prevents skewing of said printed film by moving in left and right and up and down directions.
3. The method according to claim 1 or 2,
Characterized in that the printed film providing portion is an unwinder and the printed film recovering portion is a rewinder.
Roll printing device.
3. The method according to claim 1 or 2,
Characterized in that the printed film is a metal mesh.
Roll printing device.
A roll printing method using the roll printing apparatus according to claim 1 or 2.

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