KR20030067599A - Method of printing on glass board and printed glass board manufactured thereby - Google Patents

Abstract

PURPOSE: A glass board printing method is provided in which a certain color or pattern is displayed on one side surface of glass board by screen printing, and a printed glass board manufactured by the glass board printing method is provided. CONSTITUTION: The glass board printing method comprises the steps of forming a printing layer(40) showing a certain color or pattern by screen printing a paint on one side surface of glass board(30); and hardening the printing layer by heating the printing layer to a temperature higher than an ordinary temperature, wherein the printing layer is hardened by heating the printing layer to a temperature of 150 to 200 deg.C for 15 to 30 minutes in the hardening step, wherein the screen printing paint comprises 10 to 20 wt.% of solvent for the total paint, wherein the screen printing paint has a viscosity of 10 to 200 g/ms, wherein the printing layer(40) comprises pattern printing layer(41) and background printing layer(42), and a reflecting body powder(45) is additionally added to a paint forming the background printing layer(42), and wherein the glass board(30) is adhered to a wall body(60) so that the glass board(30) is exposed to the outside, and a double sided tape(50) is interposed between the printing layer(40) and wall body(60) so that the printing layer(40) is fixed to the wall body(60) to prevent damage of the printing layer(40).

Description

Glass plate printing method and printed glass plate manufactured by the same {Method of printing on glass board and printed glass board manufactured thereby}

The present invention relates to a glass plate printing method for forming a printing layer exhibiting a predetermined color or pattern on one side of a glass plate, and a printed glass plate produced thereby.

Glass plates have been widely used in the industry since the past due to the property of light transmission, and recently, they are often used for exterior decoration of home appliances such as interior materials of buildings, air conditioners and refrigerators. As described above, the glass plate used for decoration has a predetermined color or pattern formed on one side thereof, and makes the beauty and luxury feel.

The decorative glass plate described above has conventionally been produced by attaching a sticker or a transfer sheet, or has been produced by a spray coating method. However, the decorative glass plate manufactured by the method of attaching the sticker or the transfer film has a problem that the sticker or the transfer film is heterogeneous with respect to the glass plate, and bubbles are easily generated when a large area of the sticker or the transfer film is attached. .

On the other hand, the decorative glass plate manufactured by the method of spray coating is a method of spraying the coating with compressed air to paint, the amount of paint wasted to reach 20 to 30% of the total paint requirement because the waste is not touched the glass plate, so there is a problem have. In addition, the paint used for spray coating is made by mixing a fast-drying solvent, such as xylene or ethanol, with a printing ink, which has a high volatilization amount of such a solvent, causing air pollution and deteriorating the painting work environment.

The present invention has been made to solve the above problems, and an object of the present invention is to provide a glass plate printing method such that a predetermined color or pattern appears on one side of the glass plate by screen printing. Moreover, it aims at providing the printing glass plate manufactured by the said glass plate printing method.

1 is a cross-sectional view schematically showing an embodiment of a process of forming a printing layer on a glass plate according to the glass plate printing method of the present invention.

2 is a plan view showing a first embodiment of a printed glass plate produced by the glass plate printing method of the present invention.

3 is a plan view showing a second embodiment of a printing glass plate manufactured by the glass plate printing method of the present invention.

FIG. 4 is a cutaway perspective view illustrating the printing glass plate of FIG. 3 attached to one side of a wall.

<Description of the symbols for the main parts of the drawings>

1 ... screen 2 ... stencil

3 ... paint 5 ... squeegee

10, 30 ... glass plates 20, 40 ... printed layers

50 ... double-sided tape 60 ... wall

Glass plate printing method according to the present invention to achieve the above object,

Screen printing the paint on one side of the glass plate to form a printing layer exhibiting a predetermined color or pattern;

And curing the printed layer by heating it to a temperature higher than room temperature.

According to a preferred embodiment, in the curing step, the printed layer may be cured by heating 15 to 30 minutes at a temperature of 150 to 200 degrees Celsius.

According to one preferred embodiment, the screen printing paint, the weight ratio of the solvent to the entire paint may be 10 to 20%.

According to one preferred embodiment, the screen printing paint, the viscosity may be 10 to 200 g / ms.

The printing glass plate which concerns on this invention has a printing layer formed by the glass plate printing method mentioned above, It is characterized by the above-mentioned.

Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of the present invention.

1 is a cross-sectional view schematically showing an embodiment of a process of forming a printing layer on a glass plate according to the glass plate printing method of the present invention, Figure 2 is a first embodiment of a printed glass plate produced by the glass plate printing method of the present invention It is a top view which shows the example.

Referring to Fig. 1, in order to perform glass plate printing according to the present invention, a screen 1, a stencil 2, a paint 3, a squeegee 5, and a glass plate are required. These are what are necessary for screen printing, and are only the simplest examples for screen printing, and glass plate printing is also possible by an automated printing machine.

The screen printing will be described in detail. First, a fabric made of silk or chemical fiber is tightened on one side of the glass plate 10 to have numerous meshes of fine size, and the bottom surface is formed in a predetermined pattern. The stencil 2 covers the attached screen 1. And after pouring the paint 3 on it, it pushes with the squeegee 5 and spreads the said paint 3. Then, the paint 3 passes through the mesh of the screen 1 through a portion other than the portion to which the stencil 2 is attached, so that a printing layer 20 is formed on the glass plate 10.

The paint used for screen printing of the glass plate 10 may be used for synthetic resins such as polyvinyl chloride (PVC) resin, acrylic resin, polypropylene (PP) resin, polyester (PE) resin, epoxy resin, and polyurethane (PU) resin. It is made by mixing a solvent with a normal printing ink obtained by mixing a pigment. If the viscosity of the screen printing is too low, it is difficult to stick on the glass plate 10, and if the viscosity is too high, it is difficult to pass through the mesh of the screen 1, so that the viscosity between 10 g / ms and 200 g / ms is increased. It is desirable to have. For this purpose, the weight ratio of the solvent mixed in the paint is preferably 10 to 20% of the total weight of the paint. In addition, as the solvent, so-called slow-drying solvents such as butanol, butyl cellosolve, and cyclohexanone, which have relatively low volatility, may be used. Compared with the screen printing paint and spray coating paint as described above, the screen printing can be used a relatively high viscosity paint compared to the spray coating, a relatively small amount of the solvent contained in the paint, and the type of solvent In addition, relatively less volatile solvents may be used.

The printed layer 20 may appear in a circular pattern as shown in FIG. 2 according to the pattern of the stencil 2. When the printed layer 20 is cured at room temperature, the printed layer 20 may not be sufficiently adhered to the glass plate 10 and the printed layer 20 may bleed or fall off due to an impact, whereas the temperature is too high. The curing of the glass plate 10 itself may lead to melting of the glass plate 10 itself for a long time, so that the curing is performed by heating for 15 to 30 minutes at a temperature of 150 to 200 degrees Celsius.

Figure 3 is a plan view showing a second embodiment of the printing glass plate produced by the glass plate printing method of the present invention, Figure 4 is a cutaway perspective view showing a state in which the printing glass plate of Figure 3 is attached to one side of the wall.

Referring to the drawings, the printing glass plate according to the second embodiment includes a glass plate 30 and a printing layer 40 formed on one side of the glass plate 30. Unlike the printing glass plate shown in the first embodiment, the printing layer 40 is provided with a pattern printing layer 41 and a back printing layer 42. The printed layer 40 may be formed by first screen-printing the pattern-printed layer 41 and performing primary curing, followed by secondary screen printing of the base printing layer 42 and secondary curing. .

The primary screen printing and secondary screen printing processes and the paints used therein are similar to those described with reference to FIG. 1 and no longer elaborate. However, the paint forming the pattern print layer 41 and the paint forming the base print layer 42 are distinguished from each other by their color, brightness, or saturation. In addition, the reflector powder 45 may be further mixed with the paint forming the underprinting layer 42. The reflector powder 45 is called so-called glitter powder or pearl, and is generally made by coating a high gloss color on a thin polyester film or aluminum foil and cutting it into fine particles. In the illustrated embodiment, the size of the reflector powder 45 is exaggerated for easy identification, but in a commercial embodiment, a smaller reflector powder may be used.

The primary curing and secondary curing may be performed by heating for 15 to 30 minutes under the same conditions as the curing conditions of the printing glass plate according to the first embodiment described above, that is, at a temperature of 150 to 200 degrees Celsius. However, in the process of continuous screen printing and curing, the primary curing is sufficient if the pattern printing layer 41 does not fall or bleed off the glass plate 30 during the second screen printing. Therefore, in view of reducing the curing cost, the primary curing is preferably performed at room temperature for 3 to 4 hours or by heating at 120 to 180 degrees Celsius for 2 to 5 minutes.

Printed glass plate completed through the above process, as shown in Figure 4 may be attached to the wall 60 so that the glass plate 30 is exposed to the outside. Accordingly, the print layer 40 faces the wall 60, and the print layer 40 is fixedly coupled to the wall 60 through the double-sided tape 50 to prevent damage of the print layer 40. It is desirable to. 4 is only an example of the installation of the printing glass plate, it may be attached to the wall 60 by an adhesive or the like. In addition, the attachment location is not limited to the wall 60, and may be attached to the outer surface of the home appliance or the floor of the building.

The printing glass plate installed as described above is shown in the color or pattern of the print layer 40 through the glass plate 30 as shown in FIG. Since the light reflected by the printed layer 40 passes through the glass plate 30 and enters the viewer's field of view, the viewer can feel a soft luster. In addition, when the reflector powder 45 is distributed in the base printing layer 42, a more brilliant luster may be felt.

Although the present invention has been described with reference to the embodiments shown in the drawings, this is merely exemplary, and it will be understood by those skilled in the art that various modifications and equivalent other embodiments are possible. For example, unlike the printing glass plates shown in FIGS. 2 to 3, printing glass plates having more various colors and designs may be manufactured through a plurality of screen printing and curing processes. Therefore, the true scope of protection of the present invention should be defined only by the appended claims.

By the glass plate printing method of the present invention described above, it is possible to produce a printed glass plate having a variety of colors and patterns that can be used in various ways, such as building interior materials or exterior materials of home appliances. In addition, the glass plate printing method of the present invention can reduce the waste of the paint compared to the spray coating method, it is possible to reduce the air pollution and the deterioration of the working environment thereby.

On the other hand, in the printing glass plate manufactured by the glass plate printing method, since the printing layer is not exposed to the outer surface, the fear of breakage of the printing layer after installation is reduced, and the possibility of discoloration by ultraviolet rays may be reduced.

Claims (5)

Screen printing the paint on one side of the glass plate to form a printing layer exhibiting a predetermined color or pattern; A glass plate printing method comprising the step of curing the print layer by heating to a temperature higher than room temperature. According to claim 1, In the curing step, the printing layer is cured by heating for 15 to 30 minutes at a temperature of 150 to 200 degrees Celsius. According to claim 1, The said screen printing paint is the glass plate printing method characterized by the weight ratio of the solvent with respect to the whole paint. According to claim 1, The said screen printing material is a viscosity 10-200 g / ms, The glass plate printing method characterized by the above-mentioned. It has a printing layer formed by any one of Claims 1-4, The printing glass plate characterized by the above-mentioned.