KR101803468B1

KR101803468B1 - High-speed Lamination Apparatus

Info

Publication number: KR101803468B1
Application number: KR1020160026272A
Authority: KR
Inventors: 김동수; 배성우; 조정민; 김도현; 유민숙
Original assignee: 주식회사 탑앤씨
Priority date: 2016-03-04
Filing date: 2016-03-04
Publication date: 2017-12-28
Also published as: KR20170103407A

Abstract

An object of the present invention is to provide a high-speed laminating apparatus capable of maintaining high-quality laminating film at a high speed by allowing an adhesive to maintain optimum adhesiveness when a film is laminated.
The present invention provides a method for producing a film comprising a first supply winder 10 for supplying a first film F1 and an adhesive agent B for bonding the first film F1 to one side of the first film F1 fed from the first supply winder 10, A drying chamber 30 for drying the adhesive B coated on the coating portion 20 by supplying hot air or heating and a drying chamber 30 for supplying the second film F2, And a second film F2 supplied from the second supply winder 40. The second film F2 is supplied from the first film F1 supplied from the drying chamber 30 to the second film F2, And a winding winder (60) for winding up a film laminated at the joint portion (50), characterized in that the film lamination apparatus is characterized in that, before the joining portion (50) And a preheating roll (70) for heating the first film (F1).

Description

[0001] High-speed Lamination Apparatus [0002]

The present invention relates to a high-speed lamination apparatus, and more particularly, to a lamination apparatus comprising a functional film used for a display, a fuel cell, various packaging materials, and the like. The film is heated by a preheating roll, The present invention relates to a high-speed laminating apparatus capable of preventing adhesion of an adhesive applied on a film to a film by improving the adhesive performance and laminating the film at a high speed.

Recently, functional films have been widely used in various fields such as displays, fuel cells, and various packaging materials.

The above-mentioned functional film is produced by a lamination apparatus in which two or three films are joined together by a roll-to-roll method.

1 schematically shows a process for producing a functional film using the "dry lamination" method.

The conventional dry lamination apparatus includes a first supply winder 10, a coating portion 20, a drying chamber 30, a second supply winder 40, A grip portion 50, and a winding winder 60. [

The first supply winder 10 supplies a first film F1 such as a rolled polymer film or an aluminum foil to the coating portion 20 via a support roll R1.

The coating portion 20 applies an adhesive B dissolved in an aqueous solution or an organic solvent to one surface of the first film F1 supplied from the first supply winder 10. [

The first film F1 coated with the adhesive B is fed to the drying chamber 30 via the support roll R2.

In the drying chamber 30, the solvent applied to one surface of the first film F1 is evaporated by heating or by supplying hot air so that the surface of the adhesive is in a tacky state.

The first film F1 coated with the adhesive B is fed to the joint portion 50 through the support roll R3.

On the other hand, the second film F2 wound around the second supply winder 40 is supplied to the joint portion 50 via the support roll R4.

The jamming unit 50 includes a first film F1 and a second film F2 which are composed of an upper roll 52 and a lower roll 54 and are supplied through the support rolls R3 and R4, And pressurize them.

The film laminated in the joint portion 50 is wound on the winding rollers 60 via the support rolls R5.

The above-mentioned "dry lamination method" is a method in which the structure is simple and the production speed is higher than that of the " extrusion lamination "method in which resin is supplied by resin extruder, Has the advantage of being fast.

In addition, the dry lamination method can be applied to metal foils such as copper and zinc as well as polymer films and aluminum foils because the material and adhesive of the film can be freely selected.

In the dry lamination method described above, since the first film F1 and the second film F2 are adhered to each other under heat and pressure, the heat transferred to the adhesive agent B and the pressing force exert the adhesion performance of the film It is the main variable to decide.

Accordingly, the joining portion 50 adjusts the heat and the pressing force to realize the optimum joining performance.

However, when the film is laminated at a high speed in the above conventional dry lamination apparatus, there is a problem that it is difficult to transfer sufficient heat to the adhesive because the film passes through the joint portion 50 for a short time.

That is, there is a problem that it is difficult to sufficiently transfer the heat of the upper roll 52, which rotates at a high speed, to the film even if heat is applied to the upper roll 52 of the jig 50 by heating.

In order to solve the above-mentioned problem, the roll rotation speed of the jig 50 has to be lowered, which leads to a problem that the productivity of the laminated film is lowered.

Therefore, it is pointed out that a conventional dry lamination apparatus is difficult to form a high-quality film at a high speed.

Korean Patent No. 10-1256790 Korean Patent No. 10-1459065

It is an object of the present invention to provide a high-speed lamination apparatus capable of producing a high quality laminated film at high speed.

Another object of the present invention is to heat the film by a preheating roll and then feed it to the joint so that the adhesive maintains optimum tackiness when the film is laminated.

It is still another object of the present invention to prevent a decrease in adhesive performance due to a decrease in the temperature of an adhesive applied to one side of a film.

It is a further object of the present invention to improve the bonding performance by allowing the film to be laminated at a constant temperature at all times.

In order to achieve the above-mentioned object, the present invention provides a film forming apparatus comprising: a first supply winder for supplying a first film; a coating part for coating an adhesive on one surface of the first film supplied from the first supply winder; A drying chamber for drying the coated adhesive in the coating portion by supplying or heating, a second feeder for feeding a second film, and a second film feeder for feeding the first film and the second feeder from the drying chamber A film lamination apparatus comprising a joining portion joining a first film and a second film, and a winding winder for winding a film laminated on the joining portion, wherein a first film passed through the drying chamber is heated And the preheating roll is further provided.

Further, the preheating roll is heated by a high temperature water vapor or a heating medium of oil.

The preheating roll is characterized in that an induction coil is inserted in the preheating roll and heated by an induction heating method using an alternating current.

In addition, the joining portion is provided inside a constant temperature chamber capable of maintaining a constant temperature.

In addition, the constant temperature chamber is provided with a thermostat.

The upper roll provided in the constant temperature chamber may be a heating roll.

Also, hot air supplied to the drying chamber is simultaneously supplied to the inside of the constant temperature chamber.

According to the present invention, the film is heated by the preheating roll and then supplied to the joint portion, so that there is an effect that the adhesive maintains optimum adhesiveness when the film is laminated.

As a result, a high-quality film can be produced at a high speed in a dry lamination apparatus, thereby improving productivity.

Further, there is an effect that the temperature of the adhesive applied to one side of the film is lowered, and the adhesion performance is prevented from being lowered.

Further, by allowing the film to always be laminated at a constant temperature, there is an effect that the bonding performance of the film can be improved.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic view showing a process for producing a film by a conventional dry lamination apparatus; Fig.
2 is a schematic view illustrating a process of producing a film by a high-speed laminating apparatus according to the present invention;

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

As shown in FIG. 2, the high-speed laminating apparatus according to the present invention comprises a first feeder 10 for feeding a first film F1, a second feeder 10 for feeding the first film F1 fed from the first feeder 10, A drying chamber 30 for drying the adhesive B coated on the coating portion 20 by supplying hot air or heating; A second film supplied from the first film F1 supplied from the drying chamber 30 and a second film supplied from the second supply winder 40; (F2), and a winding winder 60 for winding up the film laminated in the joint portion 50. The winding winder 60 is provided with a winding portion 60,

The above-described configuration is a general film lamination apparatus, which has been described in the related art, and thus a duplicated description will be omitted.

The features of the present invention will be described below.

2, the high-speed laminating apparatus of the present invention includes a preheating roll Pre (Pre) for heating a first film F1 having passed through a drying chamber 30 in front of a front portion of the jig 50, -heating roll (70).

The preheating roll 70 can heat the F1 film F1 immediately before the first film F1 is lapped with the second film F2 so that the adhesive B has optimum tackiness.

The heating temperature of the preheating roll 70 is preferably in the range of 60 to 120 占 폚, depending on the component of the adhesive.

The preheating roll 50 may be heated by a heating medium such as high-temperature steam or oil supplied into the preheating roll 50, or may be heated by an induction heating method using an alternating current by providing an induction coil therein.

However, the present invention is not limited thereto, and the preheating roll 50 may be heated by various heating methods.

In the induction heating system described above, an alternating current is supplied to the induction coil to form a magnetic field, thereby allowing the roll itself to radiate heat.

Since the induction heating method itself is a well-known technique, a detailed description thereof will be omitted.

Further, according to the present invention, the joint portion (50) for joining the film is provided inside the constant temperature chamber (80) maintaining a constant temperature.

That is, in the present invention, the film is laminated at the joint portion 50 provided inside the constant temperature chamber 80.

To this end, the thermostatic chamber 80 is provided with a thermostat 90 that can keep the temperature inside the chamber constant.

In addition, hot air supplied to the drying chamber 30 can be supplied into the constant temperature chamber 80.

In addition, the upper roll 52 provided in the constant temperature chamber 80 may be formed as a heating roll, and the film may be further heated in the ridge portion 50.

The temperature of the thermostatic chamber 80 is preferably maintained at about 70 to 120 DEG C depending on the type of the adhesive and the heat resistance of the film.

Hereinafter, the operation and effect of the high-speed laminating apparatus according to the present invention will be described with reference to FIG.

First, the first film (F1) wound on the first supply winder (10) is supplied to the coating portion (20) through the support roll (R1).

Here, a pretreatment unit (not shown) for removing foreign substances and the like may be further provided in front of the coating unit 20.

In the coating part 20, the liquid adhesive B is applied to one side of the first film F1 and then supplied to the drying chamber 30 through the support roll R2.

In the drying chamber 30, the solvent contained in the adhesive (B1) is evaporated by hot air supply or heating, and the first film (30) is dried.

The first film (F1) having passed through the drying chamber (30) is heated by the preheating roll (70) and then supplied to the constant temperature chamber (80).

On the other hand, the second film F2 wound on the second supply winder 40 is supplied to the constant temperature chamber 80 via the support roll R4.

Inside the constant temperature chamber 80, there are provided an upper roll 52 and a lower roll 54 for laminating the film, and a thermostat 90 for keeping the temperature inside the chamber constant.

The upper roll 52 and the lower roll 54 are connected to the first film F1 supplied by the preheating roll 70 and the second film F2 supplied from the second supply winder 40, Lt; / RTI >

At this time, the upper roll 52 may be a heating roll to heat the film again.

Like the preheating roll 70, the upper roll 52 may be heated by supplying a heat fluid or by induction heating.

In addition, a part of the hot air supplied to the drying chamber 30 may be supplied to the constant temperature chamber 80.

When the film laminated in the constant temperature chamber 80 is wound on the winding winder 60 via the support roll R5, the film laminating operation is completed.

Although the support rolls are shown as R1, R2, R4, and R5 in FIG. 2, this is illustrated for simplicity only, and the number of support rolls may be further provided depending on the size of the equipment.

1, since the film is heated only at the joint portion 50 of the open structure, the conventional dry-dissolving apparatus sufficiently transfers heat to the first film F1 coated with the adhesive B There is a problem that it is difficult.

Particularly, there is a problem that sufficient heat transfer can not be achieved when the film is laminated at high speed.

In addition, since the joint portion 50 for joining the film is opened, there is a problem that it is difficult to keep the temperature of the adhesive constant.

As a result, according to the conventional dry lamination apparatus, it becomes very difficult to maintain the quality of the bonding while laminating the film at a high speed.

According to the present invention, however, it is possible to maximize the adhesive performance of the adhesive by heating the adhesive to a proper temperature by the preheating roll 70 immediately before the film is laminated.

Since the joint portion 50 in which the film is laminated is provided inside the confined constant temperature chamber 80 and the thermostat 90 is provided inside the constant temperature chamber 80, The lamination operation can be carried out while maintaining the uniformity.

Accordingly, it is possible to improve the adhesive performance of the laminated film while laminating the film at a high speed.

While the present invention has been described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. It will be understood by those skilled in the art that various changes and modifications may be made without departing from the scope of the present invention.

10: first supply winder 11: coating part
30: Drying chamber (Chamber) 40: Second supply roller
50; Ridge section 52: Upper roll
54: lower roll 60: winding winder
70: pre-heating roll 80: constant temperature chamber
90: Thermostat
B: Adhesive
F1: first film
F2: Second film
R1, R2, R3, R4, R5:

Claims

A first supply winder 10 for supplying a first film F1 and a coating film 12 for coating an adhesive B on one surface of the first film F1 supplied from the first supply winder 10, A drying chamber 30 for drying the adhesive B coated in the coating portion 20 by hot air supply or heating and a second supply winder 40 for supplying the second film F2, A joining portion 50 joining the first film F1 supplied from the drying chamber 30 and the second film F2 supplied from the second supply winder 40, And a winding winder (60) for winding the laminated film in the film lamination device (50)
A preheating roll 70 for heating the first film F1 having passed through the drying chamber 30 is provided immediately in front of the jig 50,
Wherein the ridge portion (50) is provided inside a constant temperature chamber (80) capable of maintaining a constant temperature.

The method according to claim 1,
Wherein the preheating roll (70) is heated by a high temperature steam or oil heating medium supplied to the inside of the preheating roll (70).

The method according to claim 1,
Wherein the preheating roll (70) is heated by an induction heating method using an alternating current after an induction coil is inserted into the preheating roll (70).

delete

The method according to claim 1,
Characterized in that said thermostatic chamber (80) comprises a thermostat (90).

The method according to claim 1,
Wherein the upper roll (52) provided in the constant temperature chamber (80) is constituted by a heating roll.

The method according to claim 1,
Wherein hot air supplied to the drying chamber (30) is simultaneously supplied to the interior of the constant temperature chamber (80).