KR101029045B1 - Composition for coloring stone and method of coloring stone using the same - Google Patents

Abstract

The present invention relates to an environmentally friendly stone coloring composition and a method for coloring a stone using the same, wherein the stone coloring composition penetrates and fixes the dye inside the stone to color the stone, wherein the coloring agent is used as a coloring agent based on 100 parts by weight of the coloring composition. 75 to 85 parts by weight of ethyl alcohol and 5 to 10 parts by weight of methyl isobutyl ketone, 1 to 15 parts by weight of a low-temperature-curable acrylic resin, 0.2 to 5 parts by weight of dye, and 2 to 5 parts by weight of silane penetrant. .

According to the stone coloring composition and the coloring method according to the present invention, without using a volatile organic compound methanol, methyl ethyl ketone, toloene, the coloring of the stone so that the dye penetrates into the stone to have a variety of colors and textures It can work.

Stone, ethyl alcohol, binder, dye, surface tension lowering agent

Description

Composition for coloring stone and method of coloring stone using same {Composition for coloring stone and method of coloring stone using the same}

The present invention relates to an environmentally friendly stone coloring composition and a method for coloring a stone using the same, and more particularly, to improve the physical properties of the stone used as various interior and exterior materials for building, and to color the color of the stone to the taste of the consumer. The present invention relates to a stone coloring composition which does not use methanol, methyl ethyl ketone, or toloene, which are volatile organic compounds, and a coloring method of stone using the same.

In general, a variety of materials are used for interior and exterior materials for building to suit the function and aesthetics of the interior and exterior space of the building. These interior and exterior materials serve to block the weather, Hanseo, sunlight, heat and noise, and the material is wood, synthetic resin, paper and stone.

As the interior and exterior materials for building used in the prior art, stone is used in various ways as a durable and environmentally friendly material. However, the existing stone used as a natural state of the texture or color obtained from the natural state could not meet the needs of users who require a variety of colors and textures.

Thus, the stone manufactured by molding a mixture of pigments and cement adhesives mixed with artificial stone and stone powder in a predetermined ratio may be used as an interior and exterior material having a similar color and texture desired by the consumer. As the period of use has elapsed, there is a problem that the color of the surface is discolored or discolored, there is a problem that the work environment is deteriorated due to the scattering of dust and pigment during the manufacturing process.

Therefore, the inventors of the present invention, in order to solve the problems described above, a coloring agent, a dye, a binder of a low-temperature-curable urethane resin, a non-yellowing isoyanate-based curing agent mixed with an aliphatic hydrocarbon methyl methyl ketone, butyl acetate, aromatic hydrocarbon toluene And depositing the stone in the coloring composition mixed with the silane penetrant to allow the coloring composition to penetrate the stone, and then removing the stone from the coloring composition, drying and curing, to remove the color even if the surface of the colored stone is scratched or worn. It has been patented in Korea Patent No. 837610 for a stone coloring composition and a method for coloring a stone using the same for maintaining the original color even when exposed to ultraviolet light.

However, in the above invention, when the binder of the low-temperature-curable urethane resin and the non-yellowing isocyanate-based curing agent are not used for about 7 to 10 days during the manufacturing process, a polymerization reaction occurs in a gel state, and the coloring composition should be discarded. In order to solve this problem, methyl ethyl ketone, butylacetate, toluene, low-temperature curing acrylic resin, dye, and silane penetrant are mixed. Patent No. 10-2008-0023757 discloses a stone coloring composition in which a stone is deposited on a coloring composition to color the stone.

In the above patents and patent pending inventions, volatile organic compounds such as methanol, methyl ethyl ketone, and toloene are used to infiltrate the colorant into the stone. It can be manufactured only in regulated areas, and even if manufactured outside the regulated area before the enforcement of the law, it can be manufactured after being designated as a special measures area or an air environment regulation area.However, in order to produce colored stone in all cases, There was a problem of installing and manufacturing volatile organic compound emission suppression and prevention facilities at a licensed place, and there was a problem of increasing the cost for a separate special production facility and wasting time according to the permit.

Accordingly, the present invention is to solve the conventional problems as described above, without using a volatile organic compound, such as methanol, methyl ethyl ketone, toloene, the composition for stone coloring having a variety of colors and textures and a method for coloring stone using the same It is to provide.

In addition, another object of the present invention is to provide a stone coloring composition that does not require a separate production facility according to the use of volatile organic compounds and a method for coloring the stone using the same.

In addition, another object of the present invention is to use a stone coloring composition and a composition for completely infiltrating the coloring composition to the inside (pores) of the stone without using a separate penetrating means such as ultrasonic waves to have a variety of colors and textures on the surface of the stone It is for providing the coloring method of stone.

Another object of the present invention is to provide a composition for coloring a stone, in which the coloring composition is completely penetrated into the interior of the stone, and the color of the colored stone is clear, and a method for coloring the stone using the same.

In the stone coloring composition according to the present invention for achieving the above object is a stone coloring composition for coloring the stone by penetrating and fixing the dye inside the stone, with respect to 100 parts by weight of the coloring composition ethyl alcohol 75 to 85 5 to 10 parts by weight, methyl isobutyl ketone, and 1 to 15 parts by weight of a low-temperature-curable acrylic resin, 0.2 to 5 parts by weight of dye, and 2 to 5 parts by weight of a silane penetrant.

In addition, in the stone coloring composition according to the present invention, the binder is characterized in that the mixture of one or two or more selected from the group consisting of a low temperature curable acrylic resin, an acrylic natural dry resin or a low temperature curable alkyd melamine.

Moreover, in the stone coloring composition which concerns on this invention, 0.01-0.2 weight part of surface tension reducing agents is further added with respect to 100 weight part of said compositions.

In addition, the stone coloring method according to the present invention for achieving the above object is a stone coloring method of coloring the stone by penetrating and fixing the colorant to the stone, (a) to select a stone collected from nature to a predetermined size Cutting and polishing the surface of the cut stone; (b) washing the polished stone and drying the washed stone; (c) preparing a coloring composition of any one of the stone coloring composition according to the present invention; (d) depositing the stone washed in step (b) to the colorant composition of step (c) to infiltrate the coloring composition into the stone; (e) a curing step of removing the stone penetrated by the coloring composition in step (d) to wipe off the coloring composition on the surface and curing at 120 to 140 ° C; (f) a cooling step of cooling the stone cured in step (e) to room temperature; (g) a washing step of washing the stone cooled in the step (f); And (h) a drying step of drying the stone washed in the step (g).

In the stone coloring method according to the present invention, the deposition of the stone in the step (d) is characterized in that the deposition for 20 to 90 minutes.

In addition, the method for coloring a stone according to the present invention, after the far-infrared and ion generating composition is coated on the back surface of the stone dried in the step (h), characterized in that it further comprises the step (i) of low temperature dry curing do.

Moreover, in the coloring method of the stone which concerns on this invention, 50-75 weight part of water, 15-30 weight part of water-soluble acrylic resins, 0.5-2 thickeners with respect to 100 weight part of far infrared rays and ion generating compositions are said. It is characterized in that it is mixed with 7 parts by weight to 20 parts by weight, far infrared rays and anion generator.

As described above, according to the stone coloring composition according to the present invention and the method for coloring the stone using the same, dyes are penetrated to the inside of the stone without using volatile organic compounds such as methanol, methyl ethyl ketone, and toloene. The effect of coloring the stone to have a texture is obtained.

Moreover, according to the stone coloring composition which concerns on this invention, and the coloring method of the stone using the same, it does not use a volatile organic compound, and there exists an effect which does not need to provide a separate hazardous substance treatment facility.

Further, according to the stone coloring composition and the stone coloring method using the same according to the present invention, since the separate penetrating means such as an ultrasonic generator for penetrating the coloring composition into the stone is not required, the manufacturing process can be simplified. It can be effective.

In addition, according to the stone coloring composition and the coloring method of the stone using the same, since the coloring composition completely penetrates the inside of the stone, it is not only easy to obtain the required color, but also the strength of the stone can be improved. There is also an effect.

Moreover, according to the composition for stone coloring which concerns on this invention, and the coloring method of the stone using the same, there also exists an effect which can obtain the colored stone which has a vivid color.

Moreover, according to the stone coloring composition which concerns on this invention, and the coloring method of the stone using the same, even if it exposes to ultraviolet-ray for a long time, the color of a stone does not discolor.

Hereinafter, the present invention will be described in more detail.

The stone coloring composition according to the present invention comprises a coloring agent, a dye, a binder and a penetrant, these are 75 to 85 parts by weight of ethyl alcohol and 5 to 10 parts by weight of methyl isobutyl ketone as a coloring agent with respect to 100 parts by weight of the coloring composition. And 0.01 to 0.2 parts by weight of a surface tension reducing agent are added to the composition consisting of 1 to 15 parts by weight of a low-temperature-curable acrylic resin, 0.2 to 5 parts by weight of a dye, and 2 to 5 parts by weight of a silane penetrant as a binder.

Coloring agent in the present invention uses a mixture of ethyl alcohol (Ethyl Alcohol) and methyl isobuty ketone (M.I.B.K) in an aliphatic hydrocarbon organic solvent.

In the present invention, the binder may be one selected from the group consisting of a low temperature curable acrylic resin, an acrylic natural dry resin, and a low temperature curable alkyd melamine.

The penetrant in the present invention uses Dow Corning's product number Z-6341 silane (Silane).

In the present invention, the dye may use NEOJAPON of BASF, Germany.

In the present invention, the surface tension reducing agent used BYK-306 of BYK, Germany, as a polyether modified dimethyl polysiloxane solution, by lowering the surface tension of the composition according to the present invention, so that it can be easily penetrated into the pores of the stone.

Hereinafter, the coloring method of the stone which penetrates and fixes the above-mentioned stone coloring composition to a stone is demonstrated according to drawing.

1 is a photograph of a granite stone cut in nature to a predetermined size and polished on its surface, Figure 2 is a process chart for coloring the stone by infiltrating the coloring composition according to the invention into the stone.

Referring to FIG. 2, the stone collected from nature is selected and cut to a predetermined size as shown in FIG. 1, and the surface of the cut stone is polished (S100).

After (S100) and cut and polished granite stone by dipping for 20 to 40 minutes in a cleaning agent mixed with 50% by volume of ethyl alcohol, 50vol% of water (S200). In this way, the washing process removes foreign substances and oil from the surface of the stone to activate pores (pores) in the stone, so that the coloring composition completely penetrates into the stone.

The stone washed in step S200 is heated to 80 to 100 ° C. and dried (S300).

And prepare a composition for coloring stone according to the invention described above (S400).

The stone dried in the step (S300) in the step (S400) is deposited for 20 to 90 minutes, preferably 60 to 70 minutes to allow the coloring composition to penetrate the stone (S500).

Taking out the stone in which the coloring composition has penetrated in step (S500), and then well cleaning the coloring composition on the surface, it is cured at low temperature at 120 to 140 ° C. for 30 to 40 minutes (S600). As for temperature, about 130 degreeC is more preferable.

Then, by cooling the stone cured in the step (S600) to room temperature to fix the coloring composition penetrated into the stone (S700).

In the step (S700), the coloring composition is cured in stone, and the surface of the stone is fixed by dipping for 20 to 40 minutes in a washing agent mixed with 90 vol% of ethanol and 10 vol% of ethoxyethanol acetate (trade name: cellosolve acetate). Wash (S800). This washing process removes the dye on the surface of the stone, making the color of the colored stone vivid.

The stone washed in step S800 is dried by heating to 80 to 100 ° C. (S900).

The color of the stone produced by the above process can implement a variety of colors according to the color of the dye constituting the coloring composition, the coloring composition is penetrated into the interior of the stone as compared to the conventional surface coating fixed As a result, the surface of the stone is not scratched, subjected to any external stimulus, or exposed to ultraviolet rays so that the color does not discolor or discolor.

Hereinafter, a method for coating far infrared rays and anion generators on colored stones as described above will be described with reference to the drawings.

3 is a process chart for coating far-infrared and anion generators on the back surface of colored stones according to the present invention.

In step S900 of FIG. 2, the far infrared and anion generating composition in which the monazite powder is mixed is coated on the back surface of the colored stone (S1000).

Since the stone with the far-infrared and anion-generating composition is painted at a low temperature of 20 ~ 50 ℃ to cure (S1100).

Hereinafter, the preferred embodiment of the present invention described above will be described in more detail.

[Examples 1-3]

First, a composition for coloring and a composition for generating far infrared rays and anions were prepared as follows.

* Composition for coloring

     Material (mixing ratio: parts by weight) Example 1 Example 2 Example 3 Ethyl alcohol 76 80 78 Methyl Isobutyl Ketone  8  6  5 Low Temperature Curing Acrylic Resin  8  9 10 dyes  3  2  4 Silane penetrant  5  3  3 Polyether Modified Dimethyl Polysiloxane Solution (Additive) 0.015 0.015 0.015

Note) 1. The dye used BASF Neozapon Black X55 in Germany.

2. As polyether-modified dimethyl polysiloxane solution, BYK-306 manufactured by BYK of Germany was used.
3. The silane penetrant was Dow Corning Z-6341 Silane.

Far infrared and negative ion generating composition

material Mixing ratio (parts by weight) water 64 Water-soluble acrylic resin (40 wt% or more of solid content) 22 Thickener  One Far Infrared Ray and Anion Generator 13

1.Thickener: Natrasol 250HR, manufactured by Hercules, USA

    2. Far Infrared Ray and Anion Generator: Monazite Powder (325Mesh or more)

* Cleaner A: A mixture of 50 vol% ethyl alcohol and 50 vol% water

* Cleaner B: A mixture of 90 vol% ethyl alcohol and 10 vol% ethoxyethanol acetate

Granite collected from nature is cut and polished to a predetermined size (for example, 100 mm x 100 mm x thickness 17 mm), and then immersed in the cleaning agent A for 30 minutes, washed, and heated to about 90 ° C. and dried. Then, the granite washed in the prepared coloring mixture of Examples 1 to 3 was deposited for 40 minutes to allow the coloring composition to penetrate the granite stone.

After 40 minutes had elapsed, each granite stone was taken out, and the coloring composition deposited on the surface was well wiped, and then the coloring composition was cured at a temperature of 130 ° C. for 30 to 40 minutes.

Thereafter, the cured stone was cooled to room temperature to fix the coloring composition penetrated into the stone, and then the surface of the stone was washed by depositing it for about 30 minutes on the cleaner B.

Each of the washed stones was taken out and warmed to about 90 ° C. and dried.

As shown in FIG. 4, the colored stone of Example 2 is colored as a whole to the inside of the stone. Here, the colored appearance of the stone colored by Examples 1 and 3 is also similar to that of Example 2.

The weathering, water resistance, acid resistance, alkali resistance, chemical resistance, and toxic substance elution of the colored stone as described above were tested. The test methods and results are as follows.

(1) weather resistance test

The stone colored according to Examples 1 to 3 was a) 20 ± 2 ° C. for 1 hour, b) 60 ± 2 ° C., relative humidity of 90 ± 5% for 6 hours, and c) −30 ± 2 ° C. for 6 hours. The test was repeated five times, and the change in gloss and color was observed.

(2) water resistance test

The colored stone was tested by the KS F 4601: 2001 test method and the water absorption was 0.1-0.11%.

* Absorption rate (%) = (absorbent stone weight-dry stone weight) / dry stone weight × 100

(3) Acid resistance, chemical resistance, alkali resistance test

Test Items Example 1 Example 2 Example 3 Test Methods Acid resistance
(0.5% HCL, (23 ± 2) ℃, 1h deposition) Exterior clear clear clear KS M ISO 2812-1: 2007

KS K 0911: 2007 Fading color (ho) 4-5 4 4-5 Chemical resistance
(50% powder detergent, (23 ± 2) ℃, 1h deposition) Exterior clear clear clear Fading color (ho) 4-5 4-5 4-5 Chemical resistance
(Detergent, (23 ± 2) ℃, 1h deposition) Exterior clear clear clear Fading color (ho) 4 4-5 4 Acid resistance
(1% H ₂ SO ₄ , (23 ± 2) ° C, 24h deposition) Exterior clear clear clear Fading color (ho) 4 4 4 Alkali resistance
(1% NaOH, (23 ± 2) ℃, 24h deposition) Exterior clear clear clear Fading color (ho) 4-5 4 4-5

1. Powder Detergent: LG Household & Health Super Tie

2. Liquid detergent: Yuhan Chlorox Co., Ltd.

(4) Hazardous Substance Dissolution Test

Test Items Example 1 Example 2 Example 3 Test Methods Hazardous Substance Dissolution
(Mg / L)



Pb Not detected Not detected Not detected Waste Process Test Method (Ministry of Environment Notice 2007-151) CD Not detected Not detected Not detected Cr ⁶⁺ Not detected Not detected Not detected Cu Not detected Not detected Not detected As Not detected Not detected Not detected Hg Not detected Not detected Not detected

As described above, the far-infrared ray and ion generation degree of the stone coated with the far-infrared ray and ion generator according to the present invention were tested. The test method and results are as follows.

(1) Far Infrared Radiation Test

division Emissivity (5 ~ 20㎛) Radiation energy (W / ㎡ · ㎛, 37 ℃) Example 1 Stone ^Note) 0.927 3.57 * 10 ² Example 2 0.928 3.58 * 10 ² Example 3 0.926 3.57 * 10 ² General Elvan 0.932 3.59 * 10 ²

Note) 1. Test Method: KFIA-FI-1005

 2. This test is the measurement result of BLACK BODY using FT-IR Spectrometer.

Far-infrared radiation of the stone according to the present invention can be seen that there is little difference from the general elvan.

(2) Anion emission test

Test Items Test result Test Methods
Negative ion
(ION / cc)
Blank  75
KICM-FIR-1042 Example 1 730 Example 2 785 Example 3 830

Stone according to the present invention can be seen that the anion is also emitted in a large amount.

As mentioned above, although the invention made by this inventor was demonstrated concretely according to the said Example, this invention is not limited to the said Example and can be variously changed in the range which does not deviate from the summary.

1 is a photograph of a granite stone obtained by cutting a stone taken from nature into a predetermined size and polishing the surface thereof.

Figure 2 is a process for coloring the stone by penetrating the stone composition for coloring according to the present invention

3 is a process chart for coating far-infrared and anion generators on the back surface of colored stones according to the present invention;

Figure 4 is a photograph of the cut surface of the colored stone according to the present invention

Claims (7)

In the stone coloring composition for coloring the stone by penetrating and fixing the dye inside the stone, 75 to 85 parts by weight of ethyl alcohol and 5 to 10 parts by weight of methyl isobutyl ketone as a coloring agent, 1 to 15 parts by weight of a low-temperature-curable acrylic resin as a binder, 0.2 to 5 parts by weight of a dye, and a silane penetrant based on 100 parts by weight of the coloring composition. A stone coloring composition comprising 2 to 5 parts by weight. The method of claim 1, The binder is a stone coloring composition, characterized in that at least one selected from the group consisting of a low temperature curable acrylic resin, an acrylic natural dry resin or a low temperature curable alkyd melamine. 3. The method of claim 2, 0.01 to 0.2 parts by weight of the surface tension reducing agent is further added to 100 parts by weight of the composition. In the stone coloring method of coloring a stone by infiltrating and fixing a colorant to the stone, (a) sorting the stone taken from nature and cutting it to a predetermined size, and polishing the surface of the cut stone; (b) washing the polished stone and drying the washed stone; (c) preparing a coloring composition according to any one of claims 1 to 3; (d) depositing the stone washed in step (b) to the colorant composition of step (c) to infiltrate the coloring composition into the stone; (e) a curing step of removing the stone penetrated by the coloring composition in step (d) to wipe off the coloring composition on the surface and curing at 120 to 140 ° C; (f) a cooling step of cooling the stone cured in step (e) to room temperature; (g) a washing step of washing the stone cooled in the step (f); And (h) a method of coloring a stone, characterized in that the drying step of drying the stone washed in the step (g). The method of claim 4, wherein Sedimentation of the stone in the step (d) is a stone coloring method characterized in that the deposition for 20 to 90 minutes. The method of claim 5, The method of coloring a stone, characterized in that it further comprises the step (i) after coating the far-infrared and ion generating composition on the back surface of the stone dried in the step (h), low-temperature drying. The method of claim 6, The far infrared and ion generating composition is 50 to 75 parts by weight of water, 15 to 30 parts by weight of water-soluble acrylic resin, 0.5 to 2 parts by weight of thickener, 7 to 20 parts by weight of far infrared and anion generating agent with respect to 100 parts by weight of far infrared and ion generating composition. The coloring method of the stone characterized by the above-mentioned.

Images