KR101959682B1 - Vertical spray-coated glass hardening device - Google Patents

Abstract

The present invention relates to a vertical spray-coated glass hardening device which prevents scratches, foreign matter adherence, stains, and the like and, more specifically, to a vertical spray-coated glass hardening device comprising: a pair of vertical columns; a glass moving means; a frame; a coating liquid spraying means; a coating liquid hardening means; and a control panel.

Description

[0001] Vertical spray-coated glass hardening device [0002]

The present invention relates to a vertical spray-coated glass curing apparatus, and more particularly, to a vertically-spray-coated glass curing apparatus, and more particularly, to a vertically spray-coated glass curing apparatus capable of preventing scratches, A special coating agent is sprayed on the front and back surfaces of the glass through a spraying method to form a coating layer and then cured through a method of irradiating ultraviolet rays generated from an ultraviolet (UV) lamp, In addition, it is possible to minimize the in-line processing space by simultaneously performing the front and rear surfaces of the glass even when UV curing is performed simultaneously with the front and rear surfaces of the glass when spraying the coating liquid. It is possible to minimize the cost due to the protection of the glass surface by excluding the use of the coating, The adhesive force due to the formed solid and easy separation of the present invention relates to a vertical-type spray-coated glass curing device invented to defend against the foreign substances remaining in the glass Sanaa on the surface after peeling.

As shown in FIG. 1, most of the glass forming methods performed to prevent scratches, foreign matter adherence, and unevenness that may occur in the moving process during the conventional glass forming process are as follows. When the glass molded in the melting furnace is supplied, Edge cutting is performed after the edge cutting process, and after the cooling process, the coating film is attached to the front and rear sides, and the wooden film is added between the glass sheets.

As shown in FIG. 2, the molded glass is moved to a specific place through the above-described process. After the glass is loaded, the glass is transferred using a robot, washed, scribed, and then subjected to edge cutting After the films adhering to the front and back surfaces of the glass were sequentially removed, an edge cutting process was performed, chamfering and chanfrein processes were performed, and DI-W and LGL-200, which were the exclusive peeling solutions, were used Followed by two peeling and cleaning processes, a cleaning process using water, and a drying process.

However, in the method of forming and processing glass through such a process, basically, the glass itself is transported in a state in which it is divided in the horizontal direction, and each process must be carried out. Therefore, In addition, since the process of reversing the glass must be further performed in the process of attaching or removing the coating film, there is a problem in that it takes much time and cost.

In addition, since it is necessary to install additional sheets when stacking the glass adhered to the front and the back of the film, time and cost are increased, and foreign matter of 1 μm or less generated in the coating film and the separator continues to be transported Scratches or the like are generated on the surface due to scribe and glass powder generated during edge cutting, and uneven dirt or the like is generated even after cleaning using DI-W and LGL-200 which are the exclusive peeling liquids There is a problem.

On the other hand, a production process for forming a coating layer with a coating agent of glass and then peeling off the coating layer as a heat resistant protective film is required in various fields.

In general, coating films are used to protect products in various industrial fields such as automobiles, steel, transportation equipment, etc. In particular, in order to protect the LCD and OLED precision glass from external environment such as moisture and impact, Film and kanji.

In the application area, for example, a heat resistant film for protecting the device is used in the process of 250-300 ° C in the touch screen field. In the process of developing and producing a heat resistant film, the film is cut to a proper size The adhesive on the adhesive side of the film is transferred to the adherend after heating at a temperature of 200 ° C. or higher, A removal process is required.

Accordingly, paints and coatings having heat resistance imparted by using urethane, epoxy, rubber, or silicone as a main material have been developed. However, these products do not peel off or remove after heating at high temperature, but rather adhered thereto, Complex physical or chemical methods are required.

That is, when the conventional coating agents are coated at a thickness of 0.3 mm to 0.6 mm in a coating of DRY OVEN at 300 ° C for 30 minutes or more, the coating film is carbonized and the protective film can not be peeled off easily, And the production cost is increasing.

Accordingly, there is a need to develop a coating liquid composition which can easily be peeled off when a product is used, while replacing a film-type protective layer.

Korean Registered Patent No. 10-1770560 (Aug. 17, 2017) Korean Patent Publication No. 10-2012-0100287 (September 12, 2012) Korean Patent Publication No. 10-0863136 (October 06, 2008) Korean Patent Publication No. 10-2013-0134575 (December 10, 2013)

DISCLOSURE OF THE INVENTION The present invention has been made in order to solve the above problems of the related art, and it is an object of the present invention to provide a method of manufacturing a glass lid for LCD and OLED (gorilla / eagle / soda) The coating layer is formed and then irradiated with ultraviolet rays generated from an ultraviolet (UV) lamp. In this case, the glass is vertically moved, and simultaneously the glass is sprayed on the front and back surfaces of the glass, It is possible to prevent scratches, foreign matter adherence and unevenness that may occur during the glass moving process, minimize the space for the in-line process, and use a conventional film and a separator The cost due to the protection of the glass surface can be minimized, as well as the formation of the coating layer through the use of a coating solution which is not a film It is an object of the present invention to provide a vertical spray-coated glass curing apparatus which has excellent adhesion and is easy to peel off, thereby preventing residuals or foreign matter from remaining on the surface after peeling.

Other objects and advantages of the present invention will become apparent to those skilled in the art from the following detailed description.

In order to accomplish the above object, the vertical spray-coated glass curing apparatus of the present invention is characterized in that a glass-moving means fixing bar is installed in a lateral direction between the ends of a horizontal support bar installed from the upper end to the front, A pair of vertical pillars; A motor provided with a driving sprocket is provided at one end of the glass moving means fixing bar and a driven sprocket is installed at the other end, a chain is rotatably coupled between the driving and driven sprockets, A glass moving means having a glass fixing means for fixing the upper portion of the glass with a predetermined interval; And a glass flow restricting member having a rectangular table shape and preventing the glass from being shaken or separated from the front and rear portions along the upper surface center line with respect to the transverse direction is fixed and fixed to the bottom of the under- A frame to be installed; When the glass vertically erected by the glass moving means passes through the central portion of the glass, the coating liquid is uniformly distributed on the entire front and back surfaces of the glass Spraying means for spraying the coating liquid; When the glass vertically erected by the glass moving means passes through the central portion of the glass, the ultraviolet rays are irradiated to the front and back surfaces of the passage, A coating liquid curing means for curing the coating liquid; And a control panel for controlling driving of the glass moving means, the coating liquid spraying means, and the coating liquid curing means.

At this time, the coating liquid spraying means includes a pair of rectangular bodies, which are installed in the vertical direction so as to face each other with the open side facing the front and rear surfaces of the glass being moved; A plurality of coating liquid spray nozzles are installed on the coating liquid supply pipe at regular intervals and are installed in a vertical direction at a predetermined distance in the rectangular body, the front surface of the glass passing through the gap between the square bodies during operation of the coating liquid supply pump And a plurality of spray injectors for spraying a coating liquid onto the rear surface; A coating liquid storage tank in which a coating liquid having a predetermined composition is stored; A coating liquid supply pump installed between the coating liquid supply pipes of the spray injector and the coating liquid storage tank to supply the coating liquid in the coating liquid storage tank to the spray injector side; And a spray pressure regulator for controlling the spray pressure of the coating liquid sprayed from the spray sprayer by adjusting the supply amount of the coating liquid in a state where the coating liquid supply pump is installed between the spray liquid supply pump and the spray sprayer.

In addition, an external air inlet and an internal air outlet are formed between the both sides of the square body of the coating liquid spraying means and the rear surface or the upper and the lower surfaces of the square sprayer, and the air supply and exhaust device is further provided outside the square body, The inner air including the residual spray coating liquid is forcibly discharged through the inner air outlet formed on the rear surface or the upper and lower surfaces of the square body and the air is forced through the outer air inlets formed on both sides of the square body, A part of the coating liquid sprayed from the spray injector is prevented from being scattered to the outside through a gap formed between the square body and the front and rear surfaces of the glass, and the odor can be prevented from being discharged to the outside.

The coating liquid curing means includes a pair of rectangular bodies having a shape with a light transmitting plate provided on an opening surface, the pair of rectangular bodies being vertically installed so as to face the front and rear surfaces of the glass being moved; A plurality of ultraviolet lamps for irradiating ultraviolet rays to cure the coating liquid sprayed on the front and back surfaces of the glass passing through the clearance between the square bodies through the transparent plate in a state of being vertically installed at a predetermined distance in the square body; .

In addition, an external air inlet and an internal heat outlet are formed on both sides and a rear surface of the rectangular body of the coating liquid curing means, and a feeding and discharging device is further provided on the outside of the rectangular body to feed the feeding and discharging device to the rectangular body The air is forcibly introduced into the inside through the external air inlet formed on both sides and the internal heat is forcibly discharged through the internal air outlet formed on the rear surface of the square body to shorten the life time of the ultraviolet lamps So that it can be prevented.

On the other hand, the coating liquid composition comprises 20 to 40 parts by weight of a polyester acrylate compound represented by the following formula (1) based on the total weight; 1 to 20 parts by weight of an additive mixed with a compound represented by the following general formula (2) and general formula (3); And a control unit.

[Chemical Formula 1]

And, - R ₁ is - (CH _{2) s}

s is independently an integer of 0-5,

R ₂ is - (CH ₂ ) _t -

t is independently an integer from 0 to 5

(2)

(3)

u is an integer of 1-20

Here, the additive includes a first additive represented by Formula 2 and a second additive represented by Formula 3, wherein the weight ratio of the first additive to the second additive is 1 to 2: 7.5 to 8.5.

The coating liquid composition may further include a photoinitiator for inducing curing of the coating liquid composition upon light irradiation. The photoinitiator may be included in an amount of 0.05 to 5 parts by weight based on the total weight of the coating liquid composition.

Herein, the photoinitiator was a mixture of phenylglyoxylic acid methyl ester (trade name: Darocur MBF, manufactured by BASF), 2-hydroxy-2-methyl-1-phenyl- ), 1-hydroxy-cyclohexyl-phenyl-ketone (Irgacure 184, manufactured by BASF), 2-hydroxy-1- 4- [4- Benzyl] -phenyl-2-methyl-propan-1-one (trade name: Irgacure 127 manufactured by BASF), diphenyl (2,4,6-trimethylbenzoyl) phosphine oxide (trade name: Irgacure TPO, Or a mixture thereof.

Meanwhile, the coating liquid composition may include at least one of a pigment, a dye, a dispersant, an ultraviolet curable surface slip agent, and an inorganic filler as an additional additive.

Here, when the pigment is used as the additional additive, the dispersant may be contained in an amount of 2 to 10 parts by weight of the pigment to be used.

Alternatively, when an inorganic filler is used as the additional additive, the inorganic filler may be included in an amount of 10 to 30 parts by weight of the additive.

Here, the inorganic filler may be provided as one or a mixture of two or more selected from non-asbestos talc, SiO2 and TiO2.

As described above, according to the vertical spray-coated glass curing apparatus of the present invention, in the production of the ledge glass (gorilla / eagle / soda) for LCD and OLED, a special special coating agent is sprayed on the front and rear surfaces of the glass And then irradiating ultraviolet rays generated from an ultraviolet (UV) lamp. In this case, the glass is vertically moved and moved at the same time on the front and rear surfaces of the glass when spraying the coating liquid, It is possible to prevent scratches, foreign matter adherence, and unevenness that may occur during the glass moving process by minimizing the in-line process space and also to minimize the in- It is possible to minimize the cost due to the protection of the glass surface and to form a coating layer through the use of a coating solution which is not a film It is an extremely useful invention because it has excellent adhesion and is easy to peel off to prevent residuals or foreign matter on the surface after peeling.

The effects of the present invention will be clearly understood and understood by those skilled in the art, either through the specific details described below, or during the course of practicing the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is an overall schematic perspective view of an inventive device. Fig.
2 is a partially exploded perspective view of the coating liquid curing means in the apparatus of the present invention.
3 is a partially exploded perspective view of the coating liquid curing means in the apparatus of the present invention.
4 is a cross-sectional side view of the main part of the device of the present invention.

While the invention is susceptible to various modifications and alternative forms, specific embodiments thereof are shown by way of example in the drawings and are herein described in detail. It should be understood, however, that the invention is not intended to be limited to the particular forms disclosed, but includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

The terms first, second, etc. may be used to describe various components, but the components should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the first component may be referred to as a second component, and similarly, the second component may also be referred to as a first component.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In the present application, the terms "comprising" or "having ", and the like, are intended to specify the presence of stated features, integers, steps, operations, elements, parts, or combinations thereof, But do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, parts, or combinations thereof.

Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.

Terms such as those defined in commonly used dictionaries are to be interpreted as having a meaning consistent with the meaning in the context of the relevant art and are to be interpreted as ideal or overly formal in meaning unless explicitly defined in the present application Do not.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Reference will now be made in detail to preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings.

2 is a partially exploded perspective view of the coating liquid curing means of the present invention, and Fig. 3 is a partially exploded perspective view of the coating liquid curing means of the present invention apparatus, and Fig. 4 is a cross-sectional view of the main part of the device of the present invention on an enlarged scale.

Accordingly, the vertical spray-coated glass curing apparatus of the present invention comprises:

A pair of vertical columns 10 fixedly installed on the bottom surface of the horizontal support bar 11 in a horizontal direction and having a glass moving means fixing bar 12 installed therebetween;

A motor 21 having a driving sprocket 22 is installed at one end of the glass moving means fixing bar 12 and a driven sprocket 23 is installed at the other end of the driving sprocket 22, And a glass fixture 25 for fixing the upper portion of the glass 70 erected in the vertical direction is provided on the chain 24 at a predetermined interval, Means (20);

And a glass flow prevention part (31) for preventing the glass (70) from being shaken or separated from the front and rear parts is provided at the front and rear parts along the upper surface center line with respect to the lateral direction, (30) fixedly installed on the bottom of the lower portion of the floor (20);

The glass 70 vertically erected by the glass moving means 20 passes through the central portion of the glass 70 in a state where the glass 70 is installed so as to be opposed to each other at the front and rear portions of the passageway through which the glass 70 passes, A coating liquid spraying means 40 for uniformly spraying the coating liquid on the entire front and back surfaces of the glass 70;

The glass 70 vertically erected by the glass moving means 20 passes through the central portion of the glass 70 in a state in which the glass 70 is placed opposite to the front and rear surfaces of the passage through which the glass 70 passes, A coating liquid curing means 50 for irradiating ultraviolet rays to cure the coating liquid sprayed on the front and rear surfaces;

And a control panel (60) for controlling the driving of the coating liquid injecting means (40) and the coating liquid curing means (50).

At this time, the coating liquid spraying means 40,

A pair of rectangular bodies (41) provided in a vertical direction so as to face each other such that the opened surfaces face the front and back surfaces of the glass (70) being moved;

A plurality of coating liquid spray nozzles 421 are installed on the coating liquid supply pipe 422 at regular intervals and are vertically installed at a predetermined distance in the square body 41. In the state where the coating liquid supply pump 44 is operated A plurality of sprayers 42 for spraying a coating liquid onto the front and back surfaces of the glass 70 passing through the gap between the time-square bodies 41;

A coating liquid storage tank 43 in which a coating liquid having a predetermined composition is stored;

A coating liquid supply pump 44 installed between the coating liquid supply pipes 422 of the spray injector 42 and the coating liquid storage tank 43 to supply the coating liquid in the coating liquid storage tank 43 to the spray injector 42 side, Wow;

And a spray pressure regulator 45 for adjusting the spray pressure of the coating liquid sprayed from the spray sprayer 42 by adjusting the supply amount of the coating liquid in a state of being installed between the coating liquid supply pump 44 and the spray sprayer 42 .

An outer air inlet 411 and an inner air outlet 412 are further formed between both sides of the rectangular body 41 of the coating liquid injector 40 and the rear or upper and lower surfaces of the rectangular body 41, And an exhaust device 46 are further provided,

The air supply and exhaust device 46 forcibly introduces the air into the interior through the external air inflow ports 411 formed on both sides of the rectangular body 41 and the inside air formed on the rear surface or the upper and lower surfaces of the rectangular body 41 The inside air containing the residual spray coating liquid is forcibly discharged through the discharge port 412 and a part of the coating liquid sprayed from the spray injector 42 is discharged through the gap formed between the square body 41 and the front and rear surfaces of the glass So that it can be prevented from being scattered to the outside and the odor from being released to the outside.

Further, the coating liquid curing means (50)

A pair of rectangular bodies 51 having a shape provided with a light transmitting plate 52 on the opening surface and vertically installed so as to face the front and rear surfaces of the glass being moved;

The coating liquid sprayed on the front and rear surfaces of the glass 70 passing through the clearance between the square bodies 51 through the transparent plate 52 in a state of being installed vertically with a predetermined distance in the square body 51 is hardened And a plurality of ultraviolet lamps (53) for irradiating ultraviolet rays as much as possible.

An outer air inlet 511 and an inner air outlet 512 are further formed on the both sides and the rear of the quadrangular body 51 of the coating liquid curing means 50, (54)

The air supply and exhaust device 54 forcibly introduces air into the interior through the external air inlet 511 formed on both sides of the rectangular body 51 and the internal air outlet 512, the internal heat is forcibly discharged to prevent the life of the ultraviolet lamps 53 from being shortened due to overheating.

On the other hand, the coating liquid composition comprises 20 to 40 parts by weight of a polyester acrylate compound represented by the following formula (1) based on the total weight; 1 to 20 parts by weight of an additive mixed with a compound represented by the following general formula (2) and general formula (3); And a control unit.

[Chemical Formula 1]

And, - R ₁ is - (CH _{2) s}

s is independently an integer of 0-5,

R ₂ is - (CH ₂ ) _t -

t is independently an integer from 0 to 5

(2)

(3)

u is an integer of 1-20

Here, the additive includes a first additive represented by Formula 2 and a second additive represented by Formula 3, wherein the weight ratio of the first additive to the second additive is 1 to 2: 7.5 to 8.5.

The coating liquid composition may further include a photoinitiator for inducing curing of the coating liquid composition upon light irradiation. The photoinitiator may be included in an amount of 0.05 to 5 parts by weight based on the total weight of the coating liquid composition.

Herein, the photoinitiator was a mixture of phenylglyoxylic acid methyl ester (trade name: Darocur MBF, manufactured by BASF), 2-hydroxy-2-methyl-1-phenyl- ), 1-hydroxy-cyclohexyl-phenyl-ketone (Irgacure 184, manufactured by BASF), 2-hydroxy-1- 4- [4- Benzyl] -phenyl-2-methyl-propan-1-one (trade name: Irgacure 127 manufactured by BASF), diphenyl (2,4,6-trimethylbenzoyl) phosphine oxide (trade name: Irgacure TPO, Or a mixture thereof.

Meanwhile, the coating liquid composition may include at least one of a pigment, a dye, a dispersant, an ultraviolet curable surface slip agent, and an inorganic filler as an additional additive.

Here, when the pigment is used as the additional additive, the dispersant may be contained in an amount of 2 to 10 parts by weight of the pigment to be used.

Alternatively, when an inorganic filler is used as the additional additive, the inorganic filler may be included in an amount of 10 to 30 parts by weight of the additive.

Here, the inorganic filler may be provided as one or a mixture of two or more selected from non-asbestos talc, SiO2 and TiO2.

Hereinafter, the operation and effect of the vertical spray-coated glass curing apparatus of the present invention will be described in detail with reference to the accompanying drawings.

1 to 4, a vertical spray-coated glass curing apparatus according to the present invention comprises a pair of vertical columns 10, a glass moving means 20, a frame 30, a coating liquid spraying means 40, a coating liquid curing means 50, and a control panel 60 to prevent scratches, foreign matter adherence, and unevenness that may occur during the glass moving process, minimize in-line processing space, It is possible to minimize the cost due to the protection of the glass surface since it can exclude the use of the film and the gypsum, and it is possible to minimize the cost due to the protection of the glass surface. The main technology component is to prevent the foreign body from remaining.

At this time, the pair of vertical columns 10 are formed by using an "H" or "C" shaped steel or the like. In the horizontal direction between the end portions of the horizontal support bars 11 installed from the upper end to the front portion, And is fixedly installed on the floor surface in the factory with the fixing bar 12 installed.

The glass moving means 20 is provided with a motor 21 having a drive sprocket 22 at one end of the glass moving means fixing bar 12 and a driven sprocket 23 at the other end A chain 24 is rotatably coupled between the driving and driven sprockets 22 and 23 and a glass fixture 25 for fixing the upper portion of the glass 70 erected in the vertical direction on the chain 24, Are installed at predetermined intervals.

In addition, as shown in FIG. 4, the glass 70 is prevented from being shaken or detached from the front and rear portions along the upper surface center line along the horizontal direction, And a function of supporting the load when the glass (70) is moved in a state where the glass (70) is fixed to the bottom of the under side of the glass moving means (20) And the coating liquid curing means 50 can be installed.

1 and 2, the coating liquid injecting unit 40 basically includes a pair of rectangular bodies 41, a plurality of spray injectors 42, a coating liquid storage tank 43, a coating liquid supply pump 44 And the injection pressure regulator 45. In the state that the upper surface of one side of the frame 30 is opposed to the front and rear portions of the passage through which the glass 70 passes, And uniformly spray the coating liquid on the entire front and back surfaces of the glass 70 when the glass 70 vertically erected passes through the center of the glass 70.

At this time, the pair of rectangular bodies 41 among the constituent elements of the coating liquid injecting means 40 are installed in the vertical direction so as to be opposed to the front and rear surfaces of the glass 70 being moved, And a gap is formed between the opposed surfaces so as to allow the glass being moved by the glass moving means 20 to pass sufficiently in a state of standing vertically.

The plurality of spray injectors 42 have a configuration in which a plurality of coating liquid spray nozzles 421 are installed on the coating liquid supply pipe 422 at regular intervals with respect to the vertical direction, In a vertical direction.

The spray injectors 42 spray the coating liquid stored in the coating liquid storage tank 43 to the front and back surfaces of the glass 70 passing through the gaps between the square bodies 41, .

The coating liquid storage tank 43 stores a coating liquid having a predetermined composition in a state where the coating liquid storage tank 43 has a predetermined volume and is installed on the bottom surface of the factory and is supplied to the spray sprayer 42 side when the coating liquid supply pump 44 is driven Performs the function.

The coating liquid supply pump 44 is driven in response to an output signal of the control panel 60 in a state where the coating liquid supply pump 44 is installed between the coating liquid supply pipes 422 of the spray injector 42 and the coating liquid storage tank 43, And forcibly supplies the coating liquid stored in the coating liquid storage tank 43 to the spray sprayer 42 side.

The spray pressure regulator 45 regulates the spray pressure of the coating liquid injected from the spray injector 42 by adjusting the supply amount of the coating liquid in a state where the spray pressure regulator 45 is installed between the coating liquid supply pump 44 and the spray injector 42 Function.

At this time, the injection pressure regulator (45) may be provided with a manual valve or a motorized valve. For example, when a manual valve is provided, the operator manually adjusts the amount of opening and closing of the manual valve, Closing amount of the electric valve is automatically adjusted corresponding to the control signal outputted from the control panel 60 (that is, the opening / closing signal corresponding to the pressure adjustment amount set by the operator) when the electric valve is provided, So that the coating liquid can be sprayed at a desired pressure in the spray chamber 42.

In addition to the constituent elements of the coating liquid spraying means 40 described above, an outer air inlet 411 and an inner air outlet 412 are formed between both sides of the square body 41 of the coating liquid spraying means 40, And a feed / exhaust device 46 is further provided on the outside of the square body 41.

In this way, the coating liquid injecting means 40 is further provided with a feeding and discharging device 46, and the feeding and discharging device 46 is connected to the inside of the rectangular body 41 through an external air inlet 411 formed on both sides of the rectangular body 41 And the inner air containing the residual spray coating liquid can be forcibly discharged through the inner air outlet 412 formed on the rear surface or upper and lower surfaces of the rectangular body 41. Therefore, Can be completely prevented from being scattered to the outside through the gap formed between the square body 41 and the front and rear surfaces of the glass, and the odor can be completely prevented from being emitted to the outside.

1 and 3, the coating liquid curing unit 50 basically has a shape composed of a pair of rectangular bodies 51 and a plurality of ultraviolet lamps 53, and the other side of the frame 30 When the glass (70) vertically erected by the glass moving means (20) passes through the central portion of the glass (70) in a state in which the glass (70) , And functions to cure the coating liquid sprayed on the rear surface.

At this time, the pair of rectangular bodies 51 among the constituent elements of the coating liquid curing means 50 have a shape in which the light transmitting plate 52 is provided on the opening surface, and are opposed to the front and rear surfaces of the glass being moved And a gap is formed between the opposed surfaces so as to allow the glass being moved by the glass moving means 20 to pass sufficiently in a state of standing vertically.

The plurality of ultraviolet lamps 53 are illuminated in response to an output signal of the control panel 60 in a vertical direction with a predetermined distance in the square body 51, And irradiates ultraviolet rays to cure the coating liquid sprayed on the front surface and the rear surface of the glass 70 passing through the gap between the glass substrate 51 and the glass substrate 51.

In the present invention, in addition to the constituent elements of the coating liquid curing means 50, the external air inlet 511 and the internal air outlet 512 are provided on both sides and the back of the square body 51 of the coating liquid curing means 50 And a feed and exhaust device 54 is further provided on the outside of the square body 51.

In this way, the coating liquid curing means 50 is further provided with an air supply and exhaust device 54, and the air supply and exhaust device 54 is connected to the inside of the rectangular body 51 through an external air inlet 511 formed on both sides of the rectangular body 51 Since the internal air can be forcibly discharged through the internal heat outlet 512 formed on the rear surface of the square body 51, the ultraviolet lamp (That is, the lifetime of the ultraviolet lamps 53 can be remarkably extended), which may occur due to overheating.

The control panel 60 performs an overall control function of the vertical spray-coated glass curing apparatus to which the present invention is applied including the driving of the glass moving means 20, the coating liquid spraying means 40 and the coating liquid curing means 50 do.

The composition of the coating liquid used in the coating liquid injecting means 40 may be 20 to 40 parts by weight of a polyester acrylate compound represented by the following formula (1), based on the total weight of the coating liquid composition: And 1 to 20 parts by weight of an additive mixed with a compound represented by the following general formula (2) and general formula (3).

And, - R ₁ is - (CH _{2) s}

s is independently an integer of 0-5,

R ₂ is - (CH ₂ ) _t -

t is independently an integer from 0 to 5

u is an integer of 1-20.

In this case, the compound represented by Formula 1 is a polyester oligomer, which is represented by two functional groups in the chemical formula, but may preferably have a single functional group. The coating composition may have excellent spray processability, curing rate, to provide.

The polyester acrylate compound represented by Formula 1 is contained in an amount of 20 to 40 parts by weight based on the total weight of the coating liquid composition.

When the polyester acrylate compound is contained in an amount of less than 20 parts by weight based on the total weight of the coating liquid composition, there arises a problem with the releasing property of the glass surface and the resin for peeling, and when it exceeds 40 parts by weight, Is increased.

In addition, the coating liquid composition used in the apparatus of the present invention comprises at least one additive selected from the group consisting of the compounds represented by Chemical Formulas 2 and 3, and the additive reacts with the polyfunctional acrylic system of the polyester acrylate compound, Hardening of the composition is excellently induced, and it plays a role of helping to harden the curing rate and the surface of the protective film from many acrylates. That is, the resin (coating layer) formed according to the coating liquid composition has a cross-linking structure, and thus the hardening density is increased, so that the chemical resistance and durability are improved.

The additive is preferably contained in an amount of 1 to 20 parts by weight, and more preferably 10 to 15 parts by weight based on the total weight of the coating liquid composition.

If the additive is contained in an amount of less than 1 part by weight, peeling of the coating layer may not be performed smoothly. If the additive is contained in an amount of more than 20 parts by weight, the viscosity of the additive may increase.

Here, the additive includes a first additive represented by Formula 2 and a second additive represented by Formula 3, wherein the weight ratio of the first additive to the second additive is 1 to 2: 7.5 to 8.5.

When the weight ratio of the first additive is 2 or more, the peeling time is long in removing the film from the alkali solution after the ultraviolet ray curing. When the weight ratio is 1 or less, the surface hardness is lowered and the curing rate is slowed down. The weight ratio of the second additive is correlated with the viscosity control and curing rate. When the ratio is less than 7.5, the content of the talc used as the inorganic material is decreased, the curing rate and the peeling speed are lowered, and when the ratio is 8.5 or more, the viscosity of the composition becomes too low.

Here, the first additive may be prepared by DPHA (Dipentaerythritol Hexaacrylate), and the second additive may be prepared by hexane diol diacrylate (HDDA, HEXANEDIOL DIACRYLATE).

The coating liquid composition may further include a photoinitiator for inducing curing of the coating liquid composition upon light irradiation. The photoinitiator may be included in an amount of 0.05 to 5 parts by weight based on the total weight of the coating liquid composition.

Herein, the photoinitiator was a mixture of phenylglyoxylic acid methyl ester (trade name: Darocur MBF, manufactured by BASF), 2-hydroxy-2-methyl-1-phenyl- ), 1-hydroxy-cyclohexyl-phenyl-ketone (Irgacure 184, manufactured by BASF), 2-hydroxy-1- 4- [4- Benzyl] -phenyl-2-methyl-propan-1-one (trade name: Irgacure 127 manufactured by BASF), diphenyl (2,4,6-trimethylbenzoyl) phosphine oxide (trade name: Irgacure TPO, Or a mixture thereof.

Here, the amount of the photoinitiator is preferably 0.05 to 5 parts by weight, more preferably 0.1 to 1 part by weight based on the total weight of the coating liquid composition.

When the amount of the photoinitiator is less than 0.05 part by weight, curing by light irradiation can not be induced easily. When the amount of the photoinitiator is more than 5 parts by weight, So that the curability is reduced.

Meanwhile, the coating liquid composition may include at least one of a pigment, a dye, a dispersant, an ultraviolet curable surface slip agent, and an inorganic filler as an additional additive.

Specifically, the additional additive is used for the purpose of making the coating layer formed of the coating liquid composition have a color.

The use of pigments and dyes should be used to match the color to be implemented. 0.1 to 1 part by weight, preferably 0.1 to 0.4 part by weight, of the pigment and the dye are used. Dispersing agent used is Dispers 670 product sold by Evonic, and uses twice the amount of pigment used. As the surface slip agent, products such as RAD 2600, RAD 2650, RAD 2700 and the like of Evonic are used and 0.01 to 1 part by weight is used, preferably 0.05 to 0.01 part by weight.

It is preferable to use a pigment rather than a dye, and the hue can realize all colors. When the pigment is selected, a suitable dispersing agent should be used, and the content thereof is preferably 2 to 10 parts by weight of the pigment to be used.

If the dispersing agent is used in an amount of less than 2 parts by weight, the pigment may not be dispersed. When the dispersing agent is used in an amount of more than 10 parts by weight, it may not be completely cured upon ultraviolet curing.

When the inorganic filler is used as the additional additive, the inorganic filler is used to increase the weight and dimensional stability. In this case, the inorganic filler may be included in an amount of 10 to 30 parts by weight, and the inorganic filler may include non- TiO2. ≪ / RTI >

In case of inorganic filler, the coating stability is poor when the amount is less than 10 parts by weight and the coating layer is exposed to small impact. When the amount is more than 30 parts by weight, the peeling time is long.

Further, it is more preferable that the coating liquid composition used in the present invention does not contain a solvent. When a solvent is included, problems such as shrinkage due to evaporation of the solvent may occur and it may become difficult to realize the glass protection.

In addition, the viscosity of the coating liquid composition used in the present invention is selected so as to fill the entire area of the glass. The viscosity of the coating composition is preferably 500 to 1,000 cp (centi-poise) at 25 ° C, preferably 750 to 850 cp Lt; / RTI > When the viscosity is less than 750 cp, there is a problem that the composition flows down on the substrate. When the viscosity of the composition is more than 850 cp, there is a problem that the coating composition is difficult to be formed as a coating layer by a spraying process.

Therefore, when the coating liquid composition is in a preferred viscosity range, it is easily coated on the surface of the glass due to its excellent flowability and does not cause defects due to bubbles, so that an optimal coating layer (protective film) .

In addition, since the coating liquid composition used in the present invention has high permeability, light is irradiated not only to the outside but also to the inside of the composition when the curing light is irradiated.

The performance of the coating liquid composition used in the present invention was evaluated through the following Examples, Comparative Examples and Experimental Examples. It should be noted that the remainder of the components listed below are added with photoinitiators, resins, dispersants, monomers, pigments (dyes) and the like.

Example 1

40 g of polyester oligomer, 2.7 g of dipentaerythritol hexaacrylate, 16.5 g of hexanediol diacrylate and 17 g of talc were mixed with the additives and stirred at 30 to 57 DEG C for 30 minutes to prepare a total of 100 g of the coating liquid composition.

Example 2

A total of 100 g of the coating liquid composition was prepared by mixing 33 g of polyester oligomer, 2.7 g of dipentaerythritol hexaacrylate, 16.5 g of hexanediol diacrylate and 17 g of talc and the additive and stirring at 30 to 57 DEG C for 30 minutes.

Comparative Example 1

18 g of polyester oligomer, 2.7 g of dipentaerythritol hexaacrylate, 16.5 g of hexanediol diacrylate and 17 g of talc were mixed with an additive and stirred at 30 to 57 DEG C for 30 minutes to prepare a total of 100 g of a coating liquid composition.

Comparative Example 2

, 42 g of polyester oligomer, 2.7 g of dipentaerythritol hexaacrylate, 16.5 g of hexanediol diacrylate and 17 g of talc were mixed with the additives and stirred at 30 to 57 DEG C for 30 minutes to prepare a total of 100 g of the coating liquid composition.

Comparative Example 3

18 g of polyester oligomer, 2.7 g of dipentaerythritol hexaacrylate, 16.5 g of hexanediol diacrylate and 25 g of talc were mixed with the additives and stirred at 30 to 57 DEG C for 30 minutes to prepare a total of 100 g of the coating liquid composition.

The composition ratios of Examples 1 and 2 and Comparative Examples 1, 2 and 3 are summarized in the following table.

(G) (G) (G) Talc (g) Example 1 40 2.7 16.5 17 Example 2 33 2.7 16.5 17 Comparative Example 1 18 2.7 16.5 17 Comparative Example 2 42 2.7 16.5 17 Comparative Example 3 18 2.7 16.5 25

EXPERIMENTAL EXAMPLE 1 - Viscosity Evaluation of Coating Solution Composition The viscosity of the coating solution composition prepared in Examples 1 and 2 and Comparative Examples 1, 2 and 3 was measured. An SV-10 viscometer at 25 rpm at 23 DEG C was used and the results are shown in Table 2 below.

Experimental Example 2 - Evaluation of coating layer formed of coating liquid composition

Various properties of the coating layer formed by forming the coating layer on the glass substrate with the coating solution composition prepared in Examples 1 and 2 and Comparative Examples 1, 2 and 3 were evaluated.

The coating material composition was injected onto the glass by spraying method through a spray nozzle and then uniformly thickened by UV curing to a thickness of 7.5 μm ± 2 Mu m) was formed.

UV curing conditions were 620 ~ 950mj / cm2 (illuminance 150 ~ 200mw / cm2) UV lamp and curing for 4 ~ 6 minutes.

1) Adhesion evaluation

The formed coating layer was evaluated for adhesion. The adhesion was evaluated by a cross-cut test. Specifically, 11 grades of 1 mm in width and 1 mm in width were formed on the coating layer at intervals of 1 mm, and 100 eyes of 1 mm 2 were made. Cellophane tape was stuck thereon, The experiment was repeated three times at one place, and the results were measured according to the following. The measurement results are shown in Table 2 below.

&Amp; cir &: Crosslinking curing even three times

&Amp; cir &: Repeated 3 times and the number of peeled eyes was 1-50

X: Repeat 3 times and the number of peeling eyes is 51-100

2) Hardness evaluation

The hardness was evaluated for the formed coating layer. The hardness of the coating layer was evaluated through a pencil hardness test, and the hardness was evaluated using a pencil hardness tester (PHT, Korea Science and Engineering) under a load of 500 g using a Mitsubishi pencil. The pencil hardness was measured five times per one hardness of the pencil. When two or more pencils were judged to be defective, the hardness of the pencil before the failure was indicated in Table 2 below.

3) Form of coating layer

The shape of the formed coating layer was visually inspected. A fully coated form with a uniform thickness for each surface of the sample is shown in Table 2 below as a glass deposit, defects in thickness are visually confirmed, or defects when foreign materials and lumps are visible in the coating layer.

EXPERIMENTAL EXAMPLE 3 Evaluation of Peelability of Coating Layer

In order to evaluate the peelability of the coating layer, it was visually confirmed whether a residual coating layer remained on a cleaned sample after spraying an alkaline release agent on a sample (tempered glass) having the coating layer formed thereon.

The peeling solution may be a general alkali solution which reacts with polyester oligomer and talc. In this evaluation, aminoethylethanolamine, ethanolamine, tetramethylammonium hydroxide, chelate, An alkaline solution mixed with water was used.

The separation liquid spraying was carried out at 72 to 80 ° C for 3 to 5 minutes, and the cleaning process was performed for 1 to 2 minutes using D.I Water.

The cleaned sample was visually inspected and evaluated as bad when the residue was visually observed or not when the residue was not observed. The results are shown in Table 2 below.

As described above, the performance evaluation results of the coating liquid compositions of Examples 1 and 2 and Comparative Examples 1, 2 and 3 are summarized in the following table.

Viscosity (cp) Attachment Hardness shape Peelability Example 1 840 ○ 2H glass seat good Example 2 785 ○ 3H glass seat good Comparative Example 1 600 X B Bad Poor Comparative Example 2 1000 △ 2H Bad good Comparative Example 3 650 X 2B Bad Poor

As can be seen from the results of Table 2, when the composition ratios were controlled within the numerical ranges of the coating liquid compositions of the present invention (Examples 1 and 2), excellent performances in terms of viscosity, adhesion, hardness, In the case of Comparative Example 1, although the viscosity was excellent due to the low content of the polyester oligomer, it was poor in adhesion, hardness, form and peelability of the coating layer.

In Comparative Example 2, although the hardness was excellent due to the high content of the polyester oligomer, there was a problem that the nozzles of the spraying apparatus were clogged in the formation of the coating layer as the viscosity became higher and lumps were formed in the form of a coating layer. In addition, in Comparative Example 3, the low content of the polyester oligomer and the high content of the talc showed defects in all evaluation results.

As described above, the coating liquid composition used in the present invention is excellent in adhesiveness to glass, curability, peelability, durability and permeability as a result of compounding the functions of each component constituting the coating composition, It can be usefully used in the coating liquid spraying means 40 for producing a coating layer for glass protection.

While the present invention has been described in connection with what is presently considered to be practical and exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

10: Vertical pillar
11: horizontal supporting bar 12: glass moving means fixing bar
20: Glass moving means 21: Motor
22: drive sprocket 23: driven sprocket
24: chain 25: glass fixture
30: Frame 31: Glass flow chamber
40: coating liquid spraying means 41: square body
411: Outside air inlet 412: Inside air outlet
42: Spray sprayer
421: coating liquid spray nozzle 422: coating liquid supply pipe
43: coating liquid storage tank 44: coating liquid supply pump
45: Injection pressure regulator 46: Feed, Exhaust
50: Coating liquid curing means 51: Square body
511: Outside air inlet port 512: Internal air outlet port
52: translucent plate 53: ultraviolet lamp
54: Class, exhaust system
60: control panel
70: Glass

Claims (13)

A pair of vertical columns fixedly installed on the bottom surface of the horizontal supporting bar provided with a glass moving means fixing bar in a lateral direction between the upper and lower ends of the horizontal supporting bar;
A motor provided with a driving sprocket is provided at one end of the glass moving means fixing bar and a driven sprocket is installed at the other end, a chain is rotatably coupled between the driving and driven sprockets, A glass moving means having a glass fixing means for fixing the upper part of the glass with a predetermined interval;
And a glass flow restricting member having a rectangular table shape and preventing the glass from being shaken or separated from the front and rear portions along the upper surface center line with respect to the transverse direction is fixed and fixed to the bottom of the under- A frame to be installed;
When the glass vertically erected by the glass moving means passes through the central portion of the glass, the coating liquid is uniformly distributed on the entire front and back surfaces of the glass Spraying means for spraying the coating liquid;
When the glass vertically erected by the glass moving means passes through the central portion of the glass, the ultraviolet rays are irradiated to the front and back surfaces of the passage, A coating liquid curing means for curing the coating liquid;
And a control panel for controlling driving of the glass moving means, the coating liquid spraying means, and the coating liquid curing means,
Wherein the coating liquid spraying means comprises:
A pair of rectangular bodies provided in a vertical direction so as to be opposed to each other so that the opened surfaces face the front and rear surfaces of the glass being moved;
A plurality of coating liquid spray nozzles are installed on the coating liquid supply pipe at regular intervals and are installed in a vertical direction at a predetermined distance in the rectangular body, the front surface of the glass passing through the gap between the square bodies during operation of the coating liquid supply pump And a plurality of spray injectors for spraying a coating liquid onto the rear surface;
A coating liquid storage tank in which a coating liquid having a predetermined composition is stored;
A coating liquid supply pump installed between the coating liquid supply pipes of the spray injector and the coating liquid storage tank to supply the coating liquid in the coating liquid storage tank to the spray injector side;
And a spray pressure regulator for adjusting the spray pressure of the coating liquid injected from the spray injector through a supply amount of the coating liquid in a state where the spray liquid is supplied between the coating liquid supply pump and the spray sprayer,
The above-
With respect to the total weight of the composition of the coating solution,
20 to 40 parts by weight of a polyester acrylate compound represented by the following formula (1);
1 to 20 parts by weight of an additive in which a first additive represented by the following general formula (2) and a second additive represented by the following general formula (3) are mixed at a weight ratio of 1: 2 to 7.5: 8.5; And
10 to 30 parts by weight of an asbestos talc which is an inorganic filler,
Wherein the coating liquid comprises at least one of a pigment, a dye, a dispersant, and an ultraviolet curable surface slip agent as an additional additive.
[Chemical Formula 1]

And, - R ₁ is - (CH _{2) s}
s is independently an integer of 0-5,
R ₂ is - (CH ₂ ) _t -
t is independently an integer from 0 to 5
(2)

(3)

u is an integer of 1-20.
delete The method according to claim 1,
An outer air inlet and an inner air outlet are further formed between both side surfaces of the square body of the coating liquid spraying means and the rear surface or the upper and lower surfaces of the rectangular sprayer,
The air supply and exhaust device forcibly introduces air into the interior through external air inflow ports formed on both sides of the rectangular body, and the internal air including the residual spray coating liquid through the internal air outlet port formed on the rear surface or upper and lower surfaces of the square body So that a part of the coating liquid sprayed from the spray injector can be prevented from scattering to the outside through a gap formed between the square body and the front and rear surfaces of the glass and to prevent the odor from being discharged to the outside. Vertical spray-coated glass curing device.
The method according to claim 1,
The coating liquid curing means includes:
A pair of rectangular bodies having a shape with a light transmitting plate provided on an opening surface and arranged in a vertical direction so as to face front and rear surfaces of the glass being moved;
A plurality of ultraviolet lamps for irradiating ultraviolet rays to cure the coating liquid sprayed on the front and back surfaces of the glass passing through the clearance between the square bodies through the transparent plate in a state of being vertically installed at a predetermined distance in the square body; Wherein the vertical spray-coated glass-curing apparatus is a vertical spray-coated glass-curing apparatus.
The method of claim 4,
The coating liquid curing means is further provided with an external air inlet and an internal air outlet at both sides and a rear surface of a square body, and further, a quenching and discharging device is further provided outside the quadrangular body,
The air supply and exhaust device forcibly introduces air into the interior through external air inflow ports formed on both sides of the rectangular body and forcedly discharges the internal air through the internal air outlet port formed on the rear surface of the square body, So that the lifetime of the ultraviolet lamps can be prevented from being shortened.
delete delete The method according to claim 1,
The coating liquid composition may further include a photoinitiator for inducing curing of the coating liquid composition upon light irradiation, and the photoinitiator is included in an amount of 0.05 to 5 parts by weight based on the total weight of the coating liquid composition. Curing device.
The method of claim 8,
The above photoinitiator was prepared by using phenylglyoxylic acid methyl ester (trade name: Darocur MBF, manufactured by BASF), 2-hydroxy-2-methyl-1-phenyl-1-propane (trade name: Darocur 1173, (2-hydroxy-2-methyl-propionyl) -benzyl] -piperidine-1-carboxylic acid ethyl ester was obtained in the same manner as in Example 1 except that 1-hydroxy-cyclohexyl-phenyl-ketone (trade name: Irgacure 184, (Product name: Irgacure 127, manufacturer: BASF), diphenyl (2,4,6-trimethylbenzoyl) phosphine oxide (trade name: Irgacure TPO, manufacturer: BASF) Wherein the glass substrate is a mixture of at least one material selected from the group consisting of glass, glass, and glass.
delete delete delete delete

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