KR101558842B1 - Natural paint composition - Google Patents
Natural paint composition Download PDFInfo
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- KR101558842B1 KR101558842B1 KR1020150055611A KR20150055611A KR101558842B1 KR 101558842 B1 KR101558842 B1 KR 101558842B1 KR 1020150055611 A KR1020150055611 A KR 1020150055611A KR 20150055611 A KR20150055611 A KR 20150055611A KR 101558842 B1 KR101558842 B1 KR 101558842B1
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D1/00—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D103/00—Coating compositions based on starch, amylose or amylopectin or on their derivatives or degradation products
- C09D103/02—Starch; Degradation products thereof, e.g. dextrin
Abstract
The eco-friendly coating compositions of the present invention include yellow earth or kaolin, bentonite, sodium silicate, borax and starch. According to the present invention, crack resistance of a coating film can be improved by using an eco-friendly material.
Description
The present invention relates to a natural coating composition, and more particularly, to a natural coating composition containing clay such as yellow clay or kaolin as an eco-friendly material free from harmfulness.
In general, a coating material used to protect the inside or outside surface of a building and improve aesthetics is a chemical mixture of organic solvents, pigments, and the like. Chemicals released from paints, especially volatile organic compounds such as benzene, chloroform, styrene, and formaldehyde, are toxic and cause environmental pollution as well as harmful to the human body. In recent years, sick house syndrome, which causes headache, dermatitis and the like due to the influence of compounds generated from building materials and paints of newly constructed buildings, has become a social problem.
In order to solve such a problem, various natural coating compositions have been proposed in which an eco-friendly material not using an artificial synthetic binder, and further, functionalities such as antibacterial and deodorizing are introduced. For example, Korean Patent No. 10-1254579 discloses a method for preparing a natural aqueous coating composition comprising a non-toxic ceramic component and a non-toxic water-soluble organic binder. Korean Patent Laid-Open Publication No. 2013-0019603 discloses a composition for coating a building, which is environmentally friendly as an ocher coating material and has an air quality improving effect.
However, there is still a problem that cracks (cracks) are generated in the coating film formed by applying the coating material and drying it in the environment-friendly coating material. Such cracks not only deteriorate the aesthetics but also fail to protect the building properly. .
Particularly, it is difficult to solve the cracking problem in the case of using clay such as yellow soil or kaolin while using water as a solvent for dissolving the components constituting the paint.
It is an object of the present invention to provide a natural coating composition which has excellent coating performance and maximizes crack resistance of a coating film.
Natural coating compositions for one purpose of the present invention include yellow earth or kaolin, bentonite, sodium silicate, borax, starch and water.
In one embodiment, the natural coating composition may further comprise rice hull powder.
In one embodiment, the natural coating composition comprises 3 to 8 parts by weight of bentonite, 1 to 1.5 parts by weight of sodium silicate, 0.8 to 1 part by weight of borax, 0.1 to 2 parts by weight of starch, 0.1 to 2 parts by weight of rice hull powder 0.1 To 1 part by weight of water and 1 to 10 parts by weight of water.
In one embodiment, the natural coating composition comprises 210 to 270 parts by weight of zeolite, 30 to 40 parts by weight of an inorganic pigment, 20 to 30 parts by weight of bentonite, 1 to 10 parts by weight of sodium silicate, To 10 parts by weight of starch, 1 to 10 parts by weight of starch, 1 to 2 parts by weight of rice hull powder and 65 to 85 parts by weight of water.
In one embodiment, the natural coating composition may further comprise at least one selected from guar gum and xanthan gum.
According to the natural coating composition of the present invention, it is possible to maximize the crack resistance by containing bentonite, sodium silicate, borax and starch in a paint using water as a solvent. At the same time, the natural coating composition according to the present invention can have excellent painting performance.
1 is a photograph of a coating film formed by applying the environmentally friendly coating composition according to Example 1 of the present invention.
2 is a photograph of a coating film formed by applying the coating composition according to Comparative Example 1. Fig.
3 is a photograph of a coating film formed by applying the coating composition according to Comparative Example 2. Fig.
Unless defined otherwise, 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 contextual meaning of the related art and are to be interpreted as either ideal or overly formal in the sense of the present application Do not.
Environment-friendly paint composition
The eco-friendly coating composition according to the present invention includes yellow earth or kaolin, bentonite, sodium silicate, borax and starch, and water. The environmentally friendly coating composition may further include rice hull powder.
Since the environmentally friendly coating composition contains bentonite, sodium silicate, borax and starch, viscosity can be maintained when yellow ocher or kaolin is mixed with water, and cracking can be prevented from occurring even when water is used as a solvent.
The rice husk powder functions as a filler and can strengthen the bonding force between the other components even after applying and drying the environmentally friendly coating composition.
Bentonite is a functional material that absorbs and absorbs moisture, and when an environmentally friendly coating composition is used in a house or the like, it absorbs and mitigates odor. In addition, bentonite can release cesium, a heavy metal, by releasing ions.
Borax can prevent lifting of the coating film such as the occurrence of bubbles during the film formation process. Since borax is in a solid state, it can be dissolved in water and mixed with other components at room temperature.
In one embodiment, when the environmentally friendly coating composition comprises loess, the content of bentonite is 3 to 8 parts by weight, the amount of sodium silicate is 1 to 1.5 parts by weight, the amount of borax is 0.8 to 1 part by weight, Parts by weight. At this time, the content of rice husk powder may be 0.1 to 1 part by weight, and the content of water may be 1 to 10 parts by weight.
Preferably, in the environmentally friendly coating composition containing yellow loess, the bentonite is from 5.5 to 6.2 parts by weight, the sodium silicate is from 1.1 to 1.25 parts by weight, the borax is from 0.75 to 0.9 part by weight, the starch is from 1.1 to 1.3 parts by weight, 0.3 to 0.4 parts by weight of rice hull meal, and 5.5 to 6.2 parts by weight of water.
In one embodiment, the natural coating composition comprises 5.5 to 6.2 parts by weight of bentonite, 1.1 to 1.25 parts by weight of sodium silicate, 0.75 to 0.9 part by weight of borax, 1.1 to 1.3 parts by weight of starch, 0.3 to 0.4 parts by weight of rice husk, and 5.5 to 6.2 parts by weight of water. The natural coating composition may further contain 0.21 to 0.25 parts by weight of an additive, 1.65 to 1.87 parts by weight of a thickener, and 0.3 to 0.4 parts by weight of a dispersant.
In one embodiment, when the environmentally friendly coating composition comprises kaolin, the binder contains 1 to 10 parts by weight of sodium silicate, 1 to 10 parts by weight of borax, 1 to 10 parts by weight of starch, 30 parts by weight, the rice hull powder is 1 to 2 parts by weight, and the water is 65 to 85 parts by weight.
Preferably, in an eco-friendly coating composition containing kaolin, the bentonite is 23 to 27 parts by weight, the sodium silicate is 4 to 6 parts by weight, the borax is 3 to 4 parts by weight, the starch is 4 to 6 parts by weight, 1.4 to 1.6 parts by weight, and water may be 71 to 79 parts by weight.
The eco-friendly coating composition containing kaolin may further contain an inorganic pigment and a zeolite. At this time, the content of the inorganic pigment may be 20 to 30 parts by weight with respect to 100 parts by weight of kaolin, and the content of zeolite may be 210 to 270 parts by weight. Preferably, the inorganic pigment may be 33 to 37 parts by weight and the zeolite may be 225 to 255 parts by weight.
The environmentally friendly coating composition may further include a dispersant, a thickener, an additive, and the like.
As the dispersing agent, guar gum and / or xanthan gum may be used.
As the thickening agent, methylcellulose, carboxymethylcellulose, casein and the like can be used.
As the additive, sodium alginate is used. By using sodium alginate, a smooth, smooth surface film can be formed.
In one embodiment, in a natural coating composition comprising loess, from 0.1 to 5 parts by weight of an additive, from 0.1 to 5 parts by weight of a thickener and from 0.1 to 5 parts by weight of a dispersing agent. Preferably 0.21 to 0.25 parts by weight of an additive, 1.65 to 1.87 parts by weight of a thickener and 0.3 to 0.4 parts by weight of a dispersing agent.
In one embodiment, in a natural coating composition comprising kaolin, 0.1 to 10 parts by weight of an additive, 0.1 to 10 parts by weight of a thickener and 0.1 to 10 parts by weight of a dispersing agent may be contained. Preferably 1.4 to 1.6 parts by weight of a dispersant, 7 to 8 parts by weight of a thickener and 0.9 to 1.1 parts by weight of an additive.
According to the above description, it is possible to maximize the cracking resistance of the coating film by including bentonite, sodium silicate, borax and starch in a paint using water as a solvent. At the same time, the natural coating composition according to the present invention can have excellent painting performance.
Hereinafter, the present invention will be described in detail with reference to specific examples and comparative examples.
Preparation of environmentally friendly coating compositions according to Example 1
An eco-friendly coating composition was prepared according to the following Table 1.
Preparation of coating compositions according to Comparative Examples 1 and 2
A paint composition substantially the same as the environmentally friendly paint composition according to Example 1 was prepared as a paint composition according to Comparative Example 1 except that borax was omitted. Also, a paint composition substantially the same as the environmentally friendly paint composition according to Example 1 was prepared as a paint composition according to Comparative Example 2, except that sodium silicate was omitted.
Appearance evaluation
The coating compositions according to Example 1 and Comparative Examples 1 and 2 were each applied to the cement wall three times and dried to form a coating film. The results of the respective coating films are shown in Figs. 1 to 3, respectively.
2 is a photograph of a coating film formed by applying a coating composition according to Comparative Example 1, and Fig. 3 is a photograph of a coating film formed by applying a green coating composition according to Comparative Example 2 Is a photograph of a coating film formed by coating a coating composition according to the present invention.
1 to 3, it can be seen that a smooth coating film is formed without cracks in FIG. 1, whereas fine cracks are formed in FIG. 2, and peeling is further observed in FIG. 3 from cracks. That is, it is known that kaolin, which is a kind of clay, is used and sodium silicate, borax, and starch are all included, and hankuk powder is used to form a coating film having improved crack resistance that minimizes crack generation even when water is used as a solvent have.
It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the present invention as defined by the following claims. It can be understood that it is possible.
Claims (5)
3 to 8 parts by weight of bentonite;
1 to 1.5 parts by weight of sodium silicate;
0.8 to 1 part by weight of borax;
0.1 to 2 parts by weight of starch;
0.1 to 1 part by weight of rice hull powder; And
And 1 to 10 parts by weight of water.
210 to 270 parts by weight of zeolite;
30 to 40 parts by weight of an inorganic pigment;
20 to 30 parts by weight of bentonite;
1 to 10 parts by weight of sodium silicate;
1 to 10 parts by weight of borax;
1 to 10 parts by weight of starch;
1 to 2 parts by weight of rice hull meal; And
And 65 to 85 parts by weight of water.
Eco-friendly coating composition.
Characterized in that it further comprises at least one selected from the group consisting of guar gum and xanthan gum.
Eco-friendly coating composition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020150055611A KR101558842B1 (en) | 2015-04-21 | 2015-04-21 | Natural paint composition |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020150055611A KR101558842B1 (en) | 2015-04-21 | 2015-04-21 | Natural paint composition |
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| KR101558842B1 true KR101558842B1 (en) | 2015-10-08 |
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| KR1020150055611A KR101558842B1 (en) | 2015-04-21 | 2015-04-21 | Natural paint composition |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20190046750A (en) | 2019-04-29 | 2019-05-07 | (주)힐링123 | A Eco Friendly Type of a Coating Composition with a Rare Earth Component and the Method for Producing the Same |
| KR20200033823A (en) | 2020-03-19 | 2020-03-30 | (주)힐링123 | A Eco Friendly Type of a Coating Composition with a Rare Earth Component and the Method for Producing the Same |
| KR20210025581A (en) | 2020-03-19 | 2021-03-09 | (주)힐링123 | A Eco Friendly Type of a Coating Composition with a Rare Earth Component and the Method for Producing the Same |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100888059B1 (en) * | 2008-05-15 | 2009-03-11 | 이은희 | Charcoal powder paint composition |
| KR101410680B1 (en) * | 2013-11-21 | 2014-06-24 | 부영판지(주) | Functional Eco-Corrugated Cardboaed and Manufacturing Method thereof |
-
2015
- 2015-04-21 KR KR1020150055611A patent/KR101558842B1/en active IP Right Grant
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100888059B1 (en) * | 2008-05-15 | 2009-03-11 | 이은희 | Charcoal powder paint composition |
| KR101410680B1 (en) * | 2013-11-21 | 2014-06-24 | 부영판지(주) | Functional Eco-Corrugated Cardboaed and Manufacturing Method thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20190046750A (en) | 2019-04-29 | 2019-05-07 | (주)힐링123 | A Eco Friendly Type of a Coating Composition with a Rare Earth Component and the Method for Producing the Same |
| KR20200033823A (en) | 2020-03-19 | 2020-03-30 | (주)힐링123 | A Eco Friendly Type of a Coating Composition with a Rare Earth Component and the Method for Producing the Same |
| KR20210025581A (en) | 2020-03-19 | 2021-03-09 | (주)힐링123 | A Eco Friendly Type of a Coating Composition with a Rare Earth Component and the Method for Producing the Same |
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