KR101615452B1 - Color multi-layer glass assembly - Google Patents

Abstract

The present invention relates to a colored multilayer glass which is installed to the windows and doors of a building, or the like. In the present invention, provided is a colored multilayer glass which comprises a plurality of glasses installed at intervals with spaces inbetween, while at least one of the spaces formed between the glasses is filled with a colored liquid composition including a color material and a glycol-based solvent. The glycol-based solvent is selected between ethylene glycol and propylene glycol. According to the present invention, expansion and contraction of the glasses with respect to temperature changes are minimized and, for example, leakage of the color composition, protruding of glasses and/or generation of an empty space at the top of glasses, etc., are prevented or minimized. Further, the pressure generated when the colored composition expands is usefully removed and the color can be changed.

Description

COLOR MULTI-LAYER GLASS ASSEMBLY}

[0001] The present invention relates to a color multilayer glass, and more particularly, to a color multilayer glass which is capable of realizing various colors and minimizing expansion and contraction according to a temperature change so as to prevent leakage of a color composition (liquid) Layer glass.

Generally, a double-layer glass or more is applied to a building for heat insulation and the like. For example, two or more pieces of glass are spaced apart from each other with a predetermined space, and air or a gas having low thermal conductivity is injected into the space to improve the heat insulation.

Korean Patent No. 10-1040151, for example, discloses a triple-layered glass using a double-bimetal structure. In Korean Patent No. 10-1283789, a vacuum is formed between a first glass and a second glass And the space between the second glass and the third glass is filled with argon gas or the like.

In addition, if the multi-layered glass has a color while blocking sunlight and cold air, the intimacy and beauty of the building can be increased. As a result, the double-layered glass is given a color. As a method of imparting hue to the multilayer glass, there is a method of attaching a color printing paper to the surface of the glass or a method of screen printing the color ink, and in most cases, a method of adding a color pigment in the production of glass is used. However, these methods are disadvantageous in that, for example, the color is not clear or the transmittance of glass is low. In addition, it is difficult to realize various colors, and in particular, the color can not be changed after the glass is applied.

In recent years, in order to overcome such disadvantages, attempts have been made to fill a liquid color composition between two glasses. At this time, the color composition is used by dissolving a color dye in a solvent (liquid). For example, in Korean Patent No. 10-1183168, a liquid injection space is formed between two sheets of glass, and a color medium can be exchanged through the injection port and the discharge port in the liquid injection space, Layered glass for construction that can be changed is proposed. Korean Patent No. 10-1388178 discloses an apparatus for entering / exiting a liquid having a color in a double glass.

However, according to the prior art color multilayer glass including the aforementioned prior art documents, the expansion and contraction of the color composition (color medium) due to the temperature change is not taken into consideration, so that leakage of the color composition, convex phenomenon of the glass, And the like.

For example, in the case of hot summer, the volume of the color composition increases (increases) when the temperature of the color composition is increased by the external solar heat. In this case, if the pressure due to the expansion is not removed, the pressure acts on the glass in the sealed space and the adhesive adhered to the glass can not withstand, so that the liquid color composition can leak out, and the glass is convexed by the expansion pressure A phenomenon that the stomach comes out) may occur. In the case of cold winter, the viscosity and specific gravity of the color composition increases and shrinks. At this time, when the volume of the color composition is reduced, a void space in which the color composition is not filled may occur at the upper end of the glass.

Korean Patent No. 10-1040151 Korean Patent No. 10-1283789 Korean Patent No. 10-1183168 Korean Patent No. 10-1388178

Accordingly, it is an object of the present invention to provide an improved color duplex glass.

According to one embodiment of the present invention, by using a specific solvent, it is possible to realize various colors due to its high solubility irrespective of kinds of color dyes and to minimize the swelling and shrinkage of the color composition according to the temperature change, Layered glass which can prevent or minimize the leakage of the liquid, the convex phenomenon of the glass (the shape of the pouring out) and / or the generation of the void space in the upper end of the glass, and the like.

The present invention is also directed to another aspect of the present invention to provide a colored glass laminated glass in which the pressure generated when the color composition is expanded by heat in an enclosed space can be easily removed.

According to an aspect of the present invention,

A plurality of glasses spaced apart from each other,

At least one space formed between the plurality of glasses is provided with a color multilayer glass filled with a liquid color composition including a color material and a glycol solvent.

According to an exemplary embodiment, the color multilayer glass according to the present invention comprises

A first glass;

A second glass spaced apart from the first glass in a first space; And

And a third glass spaced apart from the second glass in a second space,

Wherein the first space is filled with a liquid color composition including a color material and a glycol solvent,

The second space is selected from an inert gas layer, an air layer or a vacuum layer.

Further, according to an exemplary embodiment, the glycol solvents are at least one selected from ethylene glycol and propylene glycol. In addition, the color composition may further comprise an ultraviolet screening agent.

According to a preferred embodiment, a glass for forming a space in which the liquid color composition is filled is formed with a gas permeable hole, and a gas impermeable gas permeable sheet is attached to the gas permeable hole. At least one of the plurality of glasses may have a color coating layer formed on the upper end thereof.

Further, the two glasses forming the space in which the liquid color composition is filled can be attached by the transparent member in the central region. The space in which the liquid color composition is filled may have a width of 0.5 mm to 5 mm.

According to the present invention, an improved color multilayer glass is provided. According to the present invention, the expansion and contraction of the hue composition with temperature change is minimized, for example, to prevent or minimize leakage of the color composition, convexity of the glass, and / or generation of voids in the upper end of the glass.

Further, according to the present invention, the pressure generated when the color composition expands is easily removed, and the replacement (color change) of the color composition is possible.

1 is a cross-sectional view of a color multilayer glass according to a first embodiment of the present invention.
2 is a front elevation of one side of a color multilayer glass according to a first embodiment of the present invention.
3 is a sectional view of a color multilayer glass according to a second embodiment of the present invention.
Fig. 4 is a cross-sectional view of a main portion of a color multilayer glass according to a second embodiment of the present invention. Fig.
Fig. 5 is a cross-sectional view of a main portion of a color multilayer glass according to a third embodiment of the present invention.

In this specification, 'and / or' are used to mean at least one of the elements listed before and after.

The terms "first", "second", "third", "one side", and "other side" are used herein to distinguish one element from another, But is not limited by the terms.

The terms "forming on", "forming on", "forming on", "setting on", "setting on" and "setting on" The present invention is not limited to the above-described embodiments but includes the meaning that other components are formed between the components. For example, "formed on" and "mounted on" means not only that the second component is formed directly in contact with the first component, And includes a meaning that a third component can be further formed (installed) between the elements.

The terms 'formation', 'connection', 'installation', 'coupling' and 'coupling' used in the present specification mean that two members are detachably coupled . Specifically, the terms 'connection', 'installation', 'coupling', and 'engagement' used in the present specification include, for example, a force fitting method (force fitting method); A fitting method using a groove and a projection; And / or a fastening method using a fastening member such as a screw, a bolt, a piece, or a rivet, the two members are combined so as to be able to be combined and separated, After the members are combined, it is meant that the separation is impossible. In addition, in the case of the 'installation,' it may also mean that two members are stacked (seated) without a separate coupling force.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings illustrate exemplary embodiments of the invention and are provided to aid in the understanding of the invention only. In the following description of the exemplary embodiments of the present invention, detailed descriptions of commonly known general functions and / or configurations are omitted.

Fig. 1 is a cross-sectional view of a color multilayer glass according to a first embodiment of the present invention, and Fig. 2 is a front view of Fig. FIG. 3 is a cross-sectional view of a color multilayer glass according to a second embodiment of the present invention, and FIG. 4 is a cross-sectional view of the principal part of FIG. Fig. 5 shows a cross-sectional view of a main part of a color multilayer glass according to a third embodiment of the present invention.

Referring first to FIG. 1, a color multilayer glass according to the present invention is a glass structure (assembly) including a plurality of glass, and includes at least two or more glass sheets 10, 20, and 30. At this time, the glass plates 10, 20 and 30 are spaced apart from the adjacent glass plates 10, 20 and 30 by predetermined spaces S1 and S2. 20) 30 is filled with the color composition.

In the present invention, the glasses 10, 20 and 30 are not particularly limited. The glass (10), (20) and (30) may be transparent or translucent, for example, in the form of a plate. Further, the glass (10) (20) (30) can be selected from the surface treated ones. At this time, the surface treatment includes, for example, adiabatic treatment and / or ultraviolet ray shielding treatment. In one example, at least one of the plurality of glasses 10, 20 and 30 may be made of low-e glass coated with a metal powder, for example, silver Ag) powder and the like. Such low-e glass is excellent in heat insulating property because of excellent heat conduction ratio.

In addition, the number of the glasses 10, 20, 30 is not limited. The color multilayer glass according to the present invention is a multilayer glass having a double glass structure including, for example, two glasses 10, 20 and 30, a triple glass including three glasses 10, 20 and 30, Structure, or more than four glasses 10 (20) (30). The glasses 10, 20 and 30 are spaced apart from each other by a predetermined distance, and spaces S1 and S2 are formed between the glasses 10, 20 and 30, respectively. In the present invention, the number of the spaces S1 and S2 may be determined according to the number of the glasses 10, 20 and 30, and may be one or more than two. At least one of the spaces S1 and S2 among the spaces S1 and S2 is filled with the color composition.

According to an exemplary embodiment of the present invention, a color multilayered glass is a triple-layered glass structure (assembly), comprising three glasses 10, 20 and 30 and two spaces S1 and S2 formed therebetween. . ≪ / RTI > Figure 1 illustrates such a triple glass structure.

Specifically, the color multilayer glass according to the present invention comprises a first glass (10); A second glass (20) spaced apart from the first glass (10) by a first space (S1); And a third glass (30) spaced apart from the second glass (20) by a second space (S2). At this time, at least one selected from the first space S1 and the second space S2 is filled with the hue composition.

According to one embodiment, the first space S1 may be filled with a hue composition, and the second space S2 may be provided with another function. At this time, the second space S2 may have an insulating function, for example. For example, the second space S2 may be selected from an inert gas layer filled with an inert gas, an air layer introduced with air, or a vacuum layer maintained in a vacuum state by depressurization. The inert gas may be at least one selected from, for example, argon gas, krypton gas, and xenon gas. In addition, the second space S2 may be a heat insulating layer filled with a transparent insulating material, for example. According to an exemplary embodiment, the hue composition may be filled in the first space S1, and an inert gas such as argon gas may be injected into the second space S2. When an inert gas is injected into the second space S2, the heat conduction rate is excellent and the heat insulating property is advantageous.

In addition, the arrangement structure of the glass (10) (20) (30) is not limited when the building is applied. For example, the sun may be located on one side (left side in FIG. 1) of the first glass 10 or on one side (right side in FIG. 1) of the third glass 30. That is, the first glass 10 may be disposed on the outdoor side, or the third glass 30 may be disposed on the outdoor side. At this time, the glass (10) (30) positioned on the sun side (outdoor side) may be made of low-e glass coated with a metal powder such as silver (Ag).

Further, in the present invention, the thickness and the size (width, length) of the glass 10, 20, 30 are not limited. In one example, the thickness of the glass 10, 20, 30 may be 3 mm to 20 mm, and the size of the glass 10, 20, 30 may be, for example, It can be 3m.

Referring to FIG. 1, the glass 10, 20, 30 may be spaced apart from the space S 2 through spacers 41, 42. For example, a first spacer 41 is provided between the first glass 10 and the second glass 20 to form a first space 10 between the first glass 10 and the second glass 20, (S1) may be formed. A second spacer 42 is provided between the second glass 20 and the third glass 30 so that a second space S2 is formed between the second glass 20 and the third glass 30. [ .

In addition, the glass 10, 20, and 30 may have a bonding force through the adhesive layers 51 and 52. For example, a first adhesive layer 51 is formed between the first glass 10 and the second glass 20, and between the second glass 20 and the third glass 30, An adhesive layer 52 is formed, and the glass 10, 20, and 30 can have mutual bonding force. In addition, a frame 60 may be formed on the rim of the glass 10, 20, At this time, the glass (10), (20), and (30) can have mutual bonding force through the frame (60). The frame 60 may be made of a metal material and / or a plastic material and may be provided on the rim of the glass 10, 20, or 30 to provide a bonding force. In one example, the frame 60 may be selected from a window frame (chassis) of a building or the like.

In the spaces S1 and S2, the spaces S1 and S2 in which the liquid color composition is filled may have a width of 0.3 mm to 10 mm, for example. And preferably has a width of 0.5 mm to 5 mm. For example, in the embodiment shown in Fig. 1, at least the first space S1 may have a width of 0.3 mm to 10 mm, and preferably a width of 0.5 mm to 5 mm. At this time, when the width of the first space S1 in which the liquid color composition is filled is too large, two glasses 10 and 20 are formed when the expansion and contraction are repeated due to the load of the color composition itself and the outside air temperature The pushing force is too large and the first adhesive layer 51 adhering the two glass sheets 10 and 20 can not withstand and the color composition leaks out or the middle part of the glass 10 or 20 is convexed A phenomenon of pumping out) may occur. For example, when the size of the glass (10) (20) is 3 m x 1 m or more and the width of the first space (S1) is 5 mm or more, most of the adhesive may not be able to withstand. If the width of the first space S1 is too small, the sharpness of the color may be deteriorated, the ultraviolet shielding ability and / or the heat conduction ratio may be somewhat small. In consideration of this point, it is preferable that the first space S1 in which the liquid color composition is filled has a width of 0.5 mm to 5 mm.

In addition, the second space S2 may have a width of, for example, 5 mm to 20 mm. At this time, if the width of the second space S2 is too small, the heat insulation may be insignificant. If the second space S2 is too large, the total thickness of the multilayer glass may become too thick. In one example, the width of the first space S1 may be 1 mm, and the width of the second space S2 may be 12 mm.

Further, according to one embodiment of the present invention, the two glasses 10 (20) forming the space S1 in which the color composition is filled can be attached by the transparent member 70 in the central region. For example, in the embodiment shown in Fig. 1, the first glass 10 and the second glass 20 can be mutually attached via the transparent member 70 in the central region. May vary depending on the size of the glass (10) (20) or the width of the first space (S1), but as mentioned above, the middle portion of the glass (10) (20) , It is possible to prevent convex phenomenon (phenomenon of pulling out and coming out) when the two glass plates 10 and 20 are attached by the transparent member 70 as described above.

The transparent member 70 may be selected from a transparent wire made of a synthetic resin material, a transparent pad and / or a transparent bead, but is not limited thereto. In one example, the transparent member 70 may be selected from a transparent wire such as a fishing line. The transparent member 70 may have a thickness of, for example, 0.3 mm to 5 mm. The transparent member 70 is interposed between the two glass plates 10 and 20 and adhered to the glass plates 10 and 20 by an adhesive .

On the other hand, in the present invention, the color composition is a liquid phase, which includes at least a color material and a liquid phase solvent. In the present invention, the liquid phase does not only mean a completely liquid state, but it is included here as long as it has fluidity.

Further, the color material is not particularly limited as long as it is a material capable of realizing hue. The color material may be selected from an organic material, an inorganic material, and / or an organic-inorganic composite, and may use at least one selected from, for example, chemical dyes, chemical pigments, vegetable dyes and animal dyes. In addition, the hue of the color composition realized by the color material may be, for example, red, blue, yellow and white, and this color may be realized by mixing two or more kinds of color materials which realize different colors .

The solvent is selected from dissolving (or dispersing) the color material. At this time, the solvent should be selected from those having a low freezing point and a high boiling point. In addition, the solvent should have a small volume expansion / contraction with temperature change. As such a solvent, silicone oil or glycerin may be considered.

The silicone oil has properties of excellent cold resistance and heat resistance. However, silicone oils are limited by the type of color material. Specifically, the silicone oil is excellent in cold resistance and heat resistance, and may have a small expansion / contraction ratio depending on the temperature change. However, since the silicone oil has low solubility in a water-soluble color material (dye) as an oil-based material, it is difficult to realize a clear color, it's difficult. In the case of glycerin, the expansion ratio may be low, but the specific gravity (1.596 at 15 DEG C) is too large and viscous is large. In addition, glycerin is less fluid at low temperatures. Although alcohol can be considered as a solvent, alcohol is excellent in cold resistance but low in heat resistance, so it is not preferable in summer because of high expansion pressure.

Accordingly, according to the present invention, the solvent includes at least glycols. Specifically, the color composition includes a color material and a glycol solvent according to the present invention. In the present invention, the above-mentioned glycols are included if they are hydrocarbon-based compounds of divalent alcohols. According to a preferred embodiment, the glycols are at least one selected from ethylene glycol (EG) and propylene glycol (PG).

The ethylene glycol (EG) and the propylene glycol (PG) are excellent in cold resistance and heat resistance, and have low thermal conductivity. As a result, the heat conduction rate (in winter), which indicates the degree of shielding the cold air temperature in winter, is excellent. The ethylene glycol (EG) and the propylene glycol (PG) have physical properties of a freezing point of -58 ° C or less and a boiling point of 180 ° C or more and a very low expansion / contraction ratio with temperature change. And the change in chromaticity with temperature change is small. For example, propylene glycol (PG) is environmentally friendly because it is harmless to the human body, and it is also environmentally friendly, and it has a freezing point of -59 캜, a pour point of -57 캜, a boiling point of 187 캜 and a vapor pressure of 0.011 kPa It is a stable material. In addition, the propylene glycol (PG) has a very low volume expansion / contraction ratio of about 3.7% between -20 ° C and + 30 ° C and is stable to a color material (dye) low.

In addition, the ethylene glycol (EG) and propylene glycol (PG) are highly soluble in color materials (dyes, etc.) so that they can realize various colors and are advantageous in thermal insulation because of low thermal conductivity. In other words, low thermal conductivity prevents summer heat and prevents cold weather in winter, which is effective for energy saving. For example, in the case of propylene glycol (PG), the thermal conductivity is 0.2061 W / mK, which is much lower than the thermal conductivity of water (0.58 W / mK). Particularly, monopropylene glycol (MPG), which is mainly used for foods, is excellent in cold resistance, heat resistance, thermal conductivity and expansion / contraction ratio as described above, and thus is well suited to the color multilayer glass according to the present invention.

The glycol solvent may be a mixture of ethylene glycol (EG) and propylene glycol (PG). At this time, the glycol solvent may contain 10 to 90% by weight of ethylene glycol (EG) and 10 to 90% by weight of propylene glycol (PG). When a mixture of ethylene glycol (EG) and propylene glycol (PG) is used as a solvent in this way, cold resistance and heat resistance can be further improved. For example, when ethylene glycol (EG) and propylene glycol (PG) are mixed in an amount of 80% by weight: 20% by weight based on the total weight of the glycol solvent, the freezing point is -59 ° C and the boiling point is 193 ° C. . ≪ / RTI >

Further, according to a preferred embodiment of the present invention, the color composition may further include an ultraviolet shielding agent. The ultraviolet shielding agent may be any one having a function of absorbing and / or blocking ultraviolet rays. The ultraviolet shielding agent may be at least one selected from the group consisting of benzophenone-based, benzotriazole-based, acrylonitrile-based, metal complex salt-based, hindered amine-based and ultrafine titanium dioxide or inorganic materials such as ultrafine zinc oxide Can be used.

The color composition may comprise from 0.01 to 10% by weight of a color material and from 90 to 99.99% by weight of a glycol solvent based on the total weight. At this time, the content of the color material can be set according to the kind of the color material and the desired color rendering degree. The color material may be included, for example, in an amount of 0.1 to 5% by weight in the color composition. The ultraviolet shielding agent may include, for example, 10 ppm to 5% by weight based on the total weight of the color composition, but is not limited thereto.

In addition, according to another embodiment of the present invention, at least one of the plurality of glasses 10, 20 and 30 may be formed with a color coating layer 80 at the upper end thereof have. For example, in at least one of the glasses 10, 20 and 30 selected from the first glass 10, the second glass 20 and the third glass 30 in the embodiment shown in FIG. 1, A color coating layer 80 may be formed. In FIG. 1, a color coating layer 80 is formed on the upper end of the second glass 20.

As mentioned above, in the case of propylene glycol (PG), the expansion of the volume occurs at about 3.7% when the temperature rises from -20 to 30 ° C. At this time, when the color composition is filled in the first space S1 of the large-sized double-layered glass having a length of 3 m or more (for example, horizontal or vertical), it is preferable that the color composition is filled while leaving a space of about 90 mm in consideration of expansion. For example, in the hot summer (30 캜), the color composition can fill the first space (S1) by expansion, but in winter (-20 캜), about 90 mm of void space occurs due to shrinkage. The color coating layer 80 takes this into consideration.

Specifically, as described above, when the color coating layer 80 is formed on the upper end of the glass 10, 20 or 30, for example, as shown in FIG. 1, In the case where the coating layer 80 is formed, the void space caused by shrinkage of the color composition in winter is screened by the color coating layer 80, so that it can not be seen. That is, the empty space is colored by the color coating layer 80 even in the winter, so that the color composition appears to be filled.

The color coating layer 80 may be formed by coating a composition including a binder and a color material. At this time, the binder may be selected from a synthetic resin having adhesiveness, and may be selected from, for example, an acrylic resin and / or an epoxy resin. In addition, the color material constituting the color coating layer 80 may include the same color material as the color of the color composition filled in the first space S1. In addition, the width of the color coating layer 80 (vertical length in FIG. 1) can be designed in consideration of the installation place of the multi-layered glass and the variation in temperature. Specifically, the width of the color coating layer 80 may be, for example, 5 mm to 120 mm in consideration of a void space due to shrinkage of the hue composition in the winter.

Further, according to another embodiment, the color multilayer glass according to the present invention may be formed with an entrance portion for injecting / discharging the color composition. In this case, in the embodiment shown in Figs. 1 and 2, the access portion may be formed in the first glass 10. The inlet and the outlet may be capable of injecting / discharging the color composition into the first space S1. For example, the inlet and the outlet may include an inlet 91 formed at the upper left of the first glass 10, And a discharge port 92 formed at the lower left end thereof. Through the injection / discharge ports 91 and 92, the hue composition is replaced, so that the color of the color duplex glass can be changed even after the installation.

3 and 4, the injection valve 210 and the discharge valve 220 may be respectively coupled to the injection port 91 and the discharge port 92 for easy injection and discharge of the color composition.

According to an exemplary embodiment, the injection valve 210 includes a fastening pipe 211 fastened to one side of the injection port 91, a fastening piece 212 fastened to the other side of the injection port 91, And a check valve 213 provided inside the check valve 213. At this time, as shown in FIG. 4, the fastening pipe 211 and the engaging piece 212 can be screwed together at one end. The check valve 213 may include an opening and closing plate 213a for opening and closing the inside of the coupling pipe 211 and a spring 213b for elastically moving the opening and closing plate 213a.

The discharge valve 220 includes a fastening pipe 221 fastened to one side of the discharge port 92, a fastening pipe 222 fastened to the other side of the discharge port 92, And may include an installed check valve 223. At this time, as shown in FIG. 4, the fastening pipe 221 and the engaging piece 222 can be screwed together at one end. The check valve 223 may include an opening and closing plate 223a for opening and closing the inside of the tightening pipe 221 and a spring 223b for elastically moving the opening and closing plate 223a.

When the color composition is injected, the injection valve 310 may be connected to the injection valve 210 to inject and fill the injection hole. As shown in FIG. 4, the injection means 310 may include a connection pipe 311 that is hermetically coupled to the tightening pipe 211, and a supply pipe 312 for supplying the color composition. At this time, when the injection means 310 is coupled to the tightening pipe 211, the check valve 213 is opened to easily inject and fill the color composition into the first space S1.

In addition, when the color composition is discharged, the discharging means 320 may be connected to the discharging valve 220 and discharged. As shown in FIG. 4, the discharging means 320 may include a connection pipe 321 that is hermetically coupled to the tightening pipe 221, and a discharge pipe 322 for discharging the coloring composition. At this time, when the discharge means 320 is coupled to the fastening pipe 221, the check valve 213 is opened to easily discharge the color composition from the first space S1.

Therefore, the color composition can be easily replaced through the injection valve 210 and the discharge valve 220 as described above.

According to another embodiment of the present invention, at least one gas through hole 100 may be formed in the glass 10 or 20 forming the space S1 in which the color composition is filled. For example, in the embodiment shown in FIGS. 1 and 2, at least one gas through-hole 100 may be formed in the first glass 10. The gas permeable hole 100 may be formed at the upper right end of the first glass 10, for example. As shown in FIG. 5, the gas permeable sheet 120 may be attached to the gas permeable hole 100.

The gas permeable sheet 120 is liquid impermeable. Specifically, the gas permeable sheet 120 is selected from a sheet that allows only gas such as air to pass therethrough without passing the liquid color composition. In the present invention, the sheet includes the meaning of the film. The gas permeable sheet 120 may be a microporous synthetic resin sheet, a fiber material sheet, or the like. Specific examples thereof include a microporous synthetic resin membrane manufactured from polyester and / or polyurethane or the like Fiber-pressed material, and the like.

According to the present invention, the pressure can be easily adjusted by the gas permeable sheet (120). As mentioned above, for example, in the case of propylene glycol (PG), the volume expansion occurs at about 3.7% when the temperature rises from -20 to 30 ° C. By this volume expansion, the pressure in the first space S1 can be increased, wherein the increased pressure can be easily canceled by the gas permeable sheet 100 and the gas permeable sheet 120.

Specifically, when the temperature rises in summer, the air in the first space S1 expands and the pressure increases. At this time, the expanded air is discharged to the outside through the gas permeable hole 100 and the gas permeable sheet 120, . And the color composition is blocked by the liquid impermeable gas permeable sheet 120 and is not discharged. As a result, the pressure increase due to the expansion of the color composition is canceled, and swelling of the glass (10) (20) is prevented.

Meanwhile, in order to adjust the pressure as described above, a method of installing a pressure control valve in the gas permeable hole 100 may be considered. However, it takes time and cost to use the pressure control valve. However, according to the embodiment of the present invention, when the gas permeable sheet 120 is attached to the gas permeable hole 100 as described above, it is advantageous in that the cost is reduced and installation is easier than the pressure regulating valve.

According to the present invention described above, an improved color multilayer glass is provided. Specifically, according to the present invention, since glycols are used as a solvent, various colors can be realized without being restricted to the kinds of color materials. In addition, the expansion and contraction of the hue composition due to the temperature change is minimized, thereby preventing or minimizing leakage of the color composition, convexity of the glass, and / or generation of voids in the upper end of the glass.

Further, according to the present invention, the pressure generated when the hue of the color composition expands is easily removed by the gas permeable hole 100 and the gas permeable sheet 120, and by the entrance and exit portions 91 and 92, Replacement (change of color) is possible.

Accordingly, the present invention can be widely applied to the design of exterior windows or interior buildings expressing the design characteristics of a building, and also has an excellent effect of preventing cold air in the winter season, It is not only superior in energy characteristics but also excellent in color, and thus has many applications in the design of outdoor window and interior space.

Hereinafter, examples and comparative examples of the present invention will be exemplified. The following examples are provided to illustrate the present invention only and the technical scope of the present invention is not limited thereto. In addition, the following comparative example is not meant to be a prior art, but is provided for comparison with an embodiment only.

[Example 1]

(First glass) having a thickness of 5 mm and a size of 3 m x 1 m (width x length), a glass having a thickness of 5 mm and a size of 3 m x 1 m (width x length) (second glass), a thickness of 6 mm And a glass (third glass) having a size of 3 m x 1 m (width x length), a space of 1 mm (first space) between the first glass and the second glass, (Second space) between them so that a triple-layered glass having a total thickness of 29 mm was produced as shown in Fig. As shown in Fig. 2, holes are formed in the upper left and lower ends of the first glass and the upper right.

Then, 3,000 ml of the color composition was filled in the 1 mm space (first space), and argon (Ar) gas was injected into the 12 mm space (second space). The color composition was prepared by dissolving a red acidic dye (aqueous) and an ultraviolet shielding agent (CHISORB 5571) in a liquid ethylene glycol (EG) as a solvent. At this time, the color composition was composed of about 0.2 weight% of a red acid dye, about 100 ppm of an ultraviolet screening agent, and a residual amount of ethylene glycol (EG) based on the total weight.

[Example 2]

The procedure of Example 1 was repeated except that the color composition was changed. Specifically, except that a liquid propylene glycol (PG) was used instead of ethylene glycol (EG) as a solvent and a blue acidic dye (aqueous) was used instead of a red acid dye as a dye, To prepare a triple-layered glass. That is, the color composition according to the present invention was composed of about 0.2% by weight of a blue acidic dye, about 100 ppm of an ultraviolet screening agent, and a residual amount of propylene glycol (PG) based on the total weight.

≪ Evaluation of chromaticity change &

The triple-layered glass according to each of the above examples was allowed to stand in a sunny outdoors, and a color composition sample was collected at the lower end once a month. Then, a color difference meter (manufactured by HUNT LAB Co., Ltd.) Were measured. The results are shown in Table 1 below.

                        ≪ Evaluation results of chromaticity change &
Measurement date Example 1
(Red) Example 2
(Blue) L * a * b * APHA L * a * b * APHA 2014/06/09 30.25 66.03 51.93 7212.1 10.73 43.56 -57.37 -18092.2 2014/07/09 30.05 65.86 51.61 7230.0 10.66 43.56 -57.39 -18277.7 2014/08/09 30.16 65.9 51.76 7214.1 10.8 43.18 -57.30 -17957.0 Sep 09, 2014 30.32 66.1 51.98 7209.3 10.87 43.78 -57.63 -18066.1 2014/10/09 30.16 65.9 51.73 7213.2 10.34 43.59 -57.49 -18065.5 2014/11/09 30.29 66.02 51.66 7211.9 10.76 43.87 -58.10 -18066.8

As shown in Table 1, the results of the evaluation of APHA showing the change in chromaticity show that the color composition does not change much even after 6 months. These results indicate that ethylene glycol (EG) and propylene glycol (PG) are excellent in heat resistance and cold resistance, and that the dye (dye) is protected by an ultraviolet shielding agent and has a stable chromaticity against the temperature change from summer to winter .

≪ Evaluation of solubility and expansion rate &

After the preparation of ethylene glycol (EG), propylene glycol (PG), silicone oil and glycerin as solvents, the solubility and volumetric expansion rate of the dyes according to the solvent were tested as follows.

First, to determine the solubility of acidic dyes, dye was dissolved at room temperature (about 15 ° C) until each dye was no longer dissolved in each solvent. Five samples were prepared as follows. At this time, the amount (weight%) of the added dye was evaluated by the solubility, and the results are shown in Table 2 below.

(1) Sample 1: A solution obtained by mixing ethylene glycol (EG) with a blue acidic aqueous dye

(2) Sample 2: A solution obtained by mixing propylene glycol (PG) with a blue acidic aqueous dye

(3) Sample 3: A solution prepared by mixing ethylene glycol (EG) and propylene glycol (PG) in a weight ratio of 80:20 to a mixed solvent of a blue acidic aqueous dye

(4) Sample 4: A solution in which a blue oil-based dye is mixed with silicone oil

(5) Sample 5: solution in which glycerin was mixed with a blue aqueous dye

The five samples were evaluated for the volume expansion ratio between -20 ° C and + 30 ° C, and the results are shown in Table 2 below. At this time, the volume expansion ratio was evaluated by measuring the volume (initial volume) at -20 ° C for each sample, measuring the volume (expansion volume) after the temperature was raised to + 30 ° C,

[Mathematical Expression]

Expansion ratio (%) = [(expansion volume-initial volume) / initial volume] x 100

                     <Results of Solubility and Expansion Rate Evaluation> Remarks Sample 1 Sample 2 Sample 3 Sample 4 Sample 5 solvent EG PG EG + PG Silicone oil glycerin Solubility 5.2 wt% 5.1 wt% 5.1 wt% 0.02 wt% 3.0 wt% Expansion ratio 3.6% 3.7% 3.4% 3.8% 2.3%

As shown in Table 2, ethylene glycol (EG), propylene glycol (PG), and a mixture thereof (EG + PG) show a high solubility in the dye and a low volume expansion rate with increasing temperature have.

On the other hand, even in the case of the silicone oil applied to the sample 4, the expansion ratio is 3.8%, which is similar to that of glycols, but the solubility of the dye is low and it is not suitable as a color solution.

In addition, even in the case of glycerin applied to the sample 5, the expansion ratio was 2.3%, which was excellent. However, since the viscosity of the glycerin used in the sample 5 was too high to be injected into the double-layered glass, it was not suitable for filling the double-layered glass.

[Examples 3 and 4]

To investigate the pressure control ability of the gas permeable sheet, two specimens were prepared as follows.

In the case of the first specimen (Example 3), all the holes formed in the first glass were sealed, and in the case of the second specimen (Example 4), the same structure as that shown in FIG. 4 was used And a gas permeable sheet was attached to the hole formed at the right upper end. At this time, as the gas permeable sheet, a GORE-TEX product sold by GORE CO., LTD. Was used as a fiber material sheet through which gas passes without passing a liquid.

For each of the above two specimens (Examples 3 and 4), joints were cut in the right side (upper hole portion) of the first glass at intervals of 1 mm and the height of the liquid surface (color composition) was measured according to the external temperature. The results are shown in Table 3 below.

               <Measurement results of liquid level according to external temperature> Temperature (℃) 25 20 15 10 -One -3 Example 3 (cm) 5.2 5.1 5.0 5.0 3.7 3.4 Example 4 (cm) 8.8 7.9 6.5 5.6 3.8 3.4

As shown in Table 3, when the gas permeable sheet is provided and when the gas permeable sheet is not provided, there is no significant difference at a low temperature. However, when the temperature increases to 15 ° C or more, . Specifically, in the case where the gas permeable sheet was provided (Example 4), the height of the liquid surface was 8.6 cm at 25 占 폚, and 5.2 cm when the gas permeable sheet was not provided (Example 3).

From the above results, when the gas permeable sheet is provided, when the air expands in accordance with the rise and fall of the air temperature, the air is introduced to the outside when the air expands, and when the air permeates from the outside, the height of the liquid surface It can be seen that they appear the same.

However, when the gas permeable sheet is not provided, the air is expanded in the sealed glass. Therefore, even if the temperature rises, the color composition does not rise upward, but the pressure acts on both sides of the glass, It does not increase. At this time, the fact that the height of the liquid level does not increase means that the glass bulges sideways, and the adhesive may not withstand the pressure due to the adhesive applied to the glass.

Therefore, it can be seen that when the gas permeable sheet is provided, the pressure accompanying the shrinkage and expansion of the hue composition according to the temperature can be smoothly controlled to prevent the swelling of the glass and the lowering of the adhesive strength.

[Examples 5 and 6]

Two specimens were prepared as follows to investigate the physical properties according to the width between the glasses.

(Example 5) and 1 mm (Example 6) of the width (the width of the first space) between the first glass and the second glass to which the color composition was filled were measured in the same manner as in Example 1, And a blue color composition (a liquid in which about 0.2% by weight of a blue acidic dye was dissolved in propylene glycol) was filled in the container to measure the physical properties required for the window. The results are shown in [Table 4] and [Table 5], respectively. At this time, the physical properties were measured according to the standards shown in [Table 4] and [Table 5].

         <Physical properties of double-layered glass according to Example 5 (filling width: 0.5 mm) division sign unit ISO 9050
: 2003 KS L2514
: 2011 KS L2003
: 2013 NFRC300
: 2010 Visible light transmittance TL % 47.1 47.1 - 47.1 Visible light reflectance (outdoor) RL (e) % 10.3 10.3 - 10.3 Visible light reflectance (Indoor) RL (i) % 16.4 16.4 - 16.4 Solar radiation transmittance TE % 33.2 31.3 - 31.2 Solar radiation reflectance (outdoors) RE (e) % 16.6 17.0 - 17.1 Solar radiation reflectance (indoor) RE (i) % 21.3 22.0 - 22.1 Thermal Permeability (Winter) U-Value W / m ² k - - 1.3 1.4 Shielding coefficient SC - - - - 0.53

         <Physical properties of double-layered glass according to example 6 (filling width: 1.0 mm) division sign unit ISO 9050
: 2003 KS L2514
: 2011 KS L2003
: 2013 NFRC300
: 2010 Visible light transmittance TL % 29.1 29.2 - 29.2 Visible light reflectance (outdoor) RL (e) % 6.5 6.5 - 6.5 Visible light reflectance (Indoor) RL (i) % 15.5 15.5 - 15.5 Solar radiation transmittance TE % 23.9 23.1 - 23.0 Solar radiation reflectance (outdoors) RE (e) % 11.0 11.5 - 11.5 Solar radiation reflectance (indoor) RE (i) % 20.8 21.6 - 21.7 Thermal Permeability (Winter) U-Value W / m ² k - - 1.0 1.0 Shielding coefficient SC - - - - 0.36

The properties shown in [Table 4] and [Table 5] are important when window glass is applied. When the width (first space) in which the color composition is filled is 0.5 mm (Example 5), the visible light transmittance is 47.1% but 1 mm (Example 6), the visible light transmittance is reduced to 29.2%. As a result of the heat conduction rate (winter), it can be seen that when the width is 0.5 mm, it is the second grade window, and when the width is 1 mm, it is the first grade window. In this case, the degree of heat conduction (winter) in the window having a total thickness of 29 mm is considered to be the first grade, which means that the double-layered glass has excellent heat insulating properties.

In addition, the shielding coefficient which shows the characteristics of preventing the hot air temperature in summer is 0.53 at 0.5 mm and 0.36 at 1 mm.

Therefore, a product such as a ceramic paint is not permeable to light, and it can not prevent heat and cold air, but the double-layered glass according to the present embodiments has high light transmittance and excellent energy characteristics (heat insulating property) It can be seen that it is very suitable for windows.

10: first glass 20: second glass
30: third glass 41: first spacer
42: second spacer 51: first adhesive layer
52: second adhesive layer 60: frame
70: transparent member 80: colored coating layer
91: inlet 92: outlet
100: gas permeable hole 120: gas permeable sheet
S1: first space S2: second space

Claims (12)

A plurality of glasses spaced apart from each other,
Wherein at least one space formed between the plurality of glasses is filled with a liquid color composition including a color material and a glycol solvent,
The glass forming the space in which the liquid color composition is filled is formed with a gas-
And a liquid-impermeable gas-permeable sheet is attached to the gas-permeable hole.
The method according to claim 1,
In the color multilayer glass,
A first glass;
A second glass spaced apart from the first glass in a first space; And
And a third glass spaced apart from the second glass in a second space,
Wherein the first space is filled with a liquid color composition including a color material and a glycol solvent,
Wherein the second space is selected from an inert gas layer, an air layer, or a vacuum layer.
3. The method according to claim 1 or 2,
Wherein the glycol solvent is at least one selected from ethylene glycol and propylene glycol.
3. The method according to claim 1 or 2,
Wherein the glycol solvent comprises 10 to 90% by weight of ethylene glycol and 10 to 90% by weight of propylene glycol.
3. The method according to claim 1 or 2,
Wherein the color composition further comprises an ultraviolet screening agent.
3. The method according to claim 1 or 2,
Wherein the space filled with the liquid color composition has a width of 0.5 mm to 5 mm.
3. The method according to claim 1 or 2,
Wherein the two glasses forming the space in which the liquid color composition is filled are attached by a transparent member in the central region.
3. The method according to claim 1 or 2,
Wherein at least one glass among the plurality of glasses is formed with a color coating layer at an upper end thereof.
delete 3. The method of claim 2,
Wherein a color coating layer is formed on an upper end of the first glass.
3. The method of claim 2,
Wherein the gas-permeable hole is formed in the first glass,
And a liquid-impermeable gas-permeable sheet is attached to the gas-permeable hole.
3. The method according to claim 1 or 2,
Wherein the color multilayer glass is formed with an entrance portion for injecting and discharging a color composition.

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