KR101669465B1 - Method For Painting Using Thermo-Sensing Paint Components - Google Patents
Method For Painting Using Thermo-Sensing Paint Components Download PDFInfo
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- KR101669465B1 KR101669465B1 KR1020160044815A KR20160044815A KR101669465B1 KR 101669465 B1 KR101669465 B1 KR 101669465B1 KR 1020160044815 A KR1020160044815 A KR 1020160044815A KR 20160044815 A KR20160044815 A KR 20160044815A KR 101669465 B1 KR101669465 B1 KR 101669465B1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/24—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials for applying particular liquids or other fluent materials
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/02—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by baking
- B05D3/0254—After-treatment
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
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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
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/26—Thermosensitive paints
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- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Paints Or Removers (AREA)
Abstract
The present invention relates to a coating method using a temperature sensitive coating material stable to ultrasonic waves and microwaves. The composition is; A composition of a thermosensitive organic / inorganic ceramic resin containing a zeotropic pigment in a metal and a nonmetal material, wherein the zeolite organic coating layer is reacted with silane to introduce a silane group; Introducing a colloidal metal sol; And then reacting with alkoxysilane to form a temperature-sensitive ceramic paint. According to this, a material or a product which is coated with a stable temperature sensitive coating on ultrasonic waves and microwaves can be obtained.
Description
The present invention is a coating method using a temperature sensitive coating material which is stable against ultrasonic waves and microwaves and prevents discoloration due to aging change which is a disadvantage of conventional ceramic zion paint. More specifically, silane is introduced into melamine and urea microcapsules containing a zeotropic pigment to obtain a stable performance in ultrasonic and microwave. Thereafter, a colloidal sol and an alkoxysilane are used to enhance the heat resistance and hardness of the microwave and ultrasonic wave. .
According to the present invention, since the surface of the material is painted with a temperature sensitive paint, the temperature sensitive coating layer is discolored according to the heat, and the surface temperature and the state of the cooking device can be informed, thereby preventing overheating of the material, And to a coating method of a coating material which can be confirmed.
In the real world, it is necessary to check the temperature of the connecting parts of the temperature measuring thermometer, beer, shochu bottle, iron, iron, scientific measuring device, Coil transformer) It can be used for oscillators, mobile phones, and all household appliances.
The temperature limit of the thermochromic pigment is 280 ° C. However, it is recommended to use 150 ° C for continuous use and 100 ° C (boiling water) for continuous use. Particularly, under the conditions of high temperature, high pressure, high vacuum, high frequency, etc., the capsule is broken and the physical property is lost. On the other hand, temperature-sensitive paints using general-purpose organic polymers such as zeolite are generally used. Such temperature-sensitive paints are poor in heat resistance of the coating film due to the resin organic polymer used and have a low glass transition temperature (Tg) It is a common fact that the application is very limited.
The heat resistance and coating hardness of these temperature sensitive paints have been reinforced and the application range has been broadened to develop and apply inorganic temperature sensitive paints applicable to kitchen equipment, beauty equipment and industry in general. In addition, the present invention is applied to each material to ensure discoloration and stabilization of ultrasound and microwave due to aging change, which is a weak point of conventional ceramic Zion paint.
To date, much efforts have been made to develop temperature sensitive paints. For example, Korean Patent Laid-Open Publication No. 10-2010-0039776 discloses a temperature-sensitive paint prepared by mixing a white pigment such as zinc oxide, titanium oxide, etc. with an enamel oil-based paint and one or more quaternary pigment These paints can be easily scratched because the resin itself is an enamel resin and the glass transition temperature (Tg) of the coated film after forming the film is too low. In addition, since the heat resistance of the enamel resin itself limits the use temperature range, Because it uses a mixture of ordinary pigments, it is very limited in the hue of color before temperature response and the implementation of color is very limited.
Korean Patent Publication No. 2003-0073265 discloses a method of wet-transferring a ceramic coated aluminum die casting container to a transfer sheet containing a zeotropic pigment and then drying. Then, the coated film is coated on the dried film with a ceramic transparent coating agent, followed by a second drying step, and then a transparent ceramic coating is applied on the next transferred transfer film to the temperature sensitive coloring cooking vessel A technique for thermal-sensitive ceramic-coated cooking equipment has been found. The first is that the manufacturing process is too complicated to be practically used, and the temperature sensitive region is limited to the area transferred to the transfer paper.
Thion coatings using other organic resins are disclosed in Korean Patent No. 10-1286988 and No. 10-1159812. However, there are limitations in the hardness and the prevention of pollution, which are disadvantages of organic resins. Capsules are coated with inorganic silicate, Although the used patent No. 10-1267521 exists, there is a limit in application due to toxicity of liquid silicate.
In Patent Application No. 10-1292555 using a ceramic coating, a temperature sensitive cooking apparatus using alkoxysilane, a lower alcohol, a zeotropic pigment, and the like is disclosed. However, since the capsule component of the zeotropic pigment is unstable, the application of the zeolite pigment is limited because its color changes due to the change over time after the preparation of the coating.
Accordingly, the present invention is to provide a coating material that can be applied to various industrial fields as well as a kitchen utensil, and a method for manufacturing the same, by using a paint improved on the conventional problems.
Accordingly, the present inventor has secured the heat resistance and high glass transition temperature (Tg) possessed by the inorganic resin as well as securing the stability of the zeolite coating material when the coating material is made into a coating material. In addition, stability of the ultrasound and microwave Also,
In addition, we tried to secure more stable coated equipment and its manufacturing method by applying advantages of inorganic binder to existing organic binder.
The above-mentioned object is achieved by:
A silane group is introduced into the organic coating layer of the zeotropic pigment by reacting the silane with the composition of the thermosensitive organic / inorganic ceramic resin containing the zeolite pigment;
delete
Introducing a colloidal metal sol;
Sensitive ceramic coating material comprising a thermosensitive ceramic coating material and a thermosensitive ceramic coating material obtained by reacting the thermosensitive ceramic coating material with an alkoxysilane.
Another object of the present invention is to provide
A first step of applying the temperature-sensitive ceramic paint of claim 1 alone or firstly coating and drying a ceramic base paint;
A second step of painting the upper surface with the temperature sensitive ceramic coating material;
A third step of top coating with a ceramic clear paint and drying;
4) printing the temperature-sensitive ceramic paint by screen printing or pad printing;
The present invention is also directed to a coating method using a temperature sensitive ceramic coating.
Another object of the present invention is to provide
A first step of applying the temperature-sensitive ceramic paint of claim 1 alone or firstly coating and drying a ceramic base paint;
A second step of printing the temperature sensitive ceramic coating material by a screen printing method or a pad printing method;
A third step of top-coating the glass as a ceramic clear paint;
The present invention is also directed to a coating method using a temperature sensitive ceramic coating.
According to still another aspect of the present invention,
The coating of the substrate comprises gradation, marble, coating of more than two tone type, silk screen printing, pad printing;
The substrate may be any one of plastic, tile, metal, kitchen container, electronic device, electric heating element, mold, and defoamer terminal.
According to still another aspect of the present invention,
Wherein the colloidal metal sol comprises at least one of colloidal silica, colloidal alumina, colloidal titania, and colloidal zirconia;
The alkoxysilane may be at least one selected from the group consisting of tetraethoxysilane, methyltrimethoxysilane, tetramethoxysilane, fluorosilane, phenyltrimethoxysilane, ethyltrimethoxysilane, glycidoxypropyltrimethoxysilane, acryltriethoxysilane , Methacryloxypropyltrimethoxysilane, vinyltriethoxysilane, and the like.
The inorganic thermosensitive paint according to the present invention is coated with a coating material having high stability of color and excellent color stability and a bright coating film while maintaining the heat resistance of the inorganic resin and the high hardness characteristics due to the high glass transition temperature, Material was obtained.
Fig. 1 is a kitchen cooking apparatus painted with zeotropo pigment.
2 is a detailed flow chart using an epoxy silane in a method of manufacturing the present paint.
Fig. 3 is a hemp coated with zeotropic pigment.
FIG. 4 shows test results of a specimen coated with a temperature sensitive paint on a tile, a coating of the present invention, and a coated specimen of a conventional product under ultrasonic and microwave treatment conditions.
Fig. 5 is a frying pan and a specimen on which a screen or a pad is printed with Zion paint.
6 is a chemical structural diagram of the composition of the reaction step in the production of the temperature-sensitive resin composition.
The present invention relates to a coating method using an inorganic temperature sensitive paint. Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
The discolorable dyes change color depending on the external environment, and they have thermochromicity, photochromism, and acid base discoloration. Temperature-sensitive discoloration dyes change color depending on temperature. This principle encapsulates discolored materials in microcapsules, reacts with the external stimuli (temperature) of the discolored materials in the capsule, and develops in a flash when the color components come in contact with the
The wall of the microcapsule is mainly used as a double wall material of urea-formaldehyde resin and polyurethane. These microcapsules are generally coated by coating with acryl or polyurethane resin. On the other hand, in U.S. Patent No. 6,139,779, the microcapsules still have a chemical instability in the polar solvent, and in this connection, the destruction of the thermosensitive system to the low molecular solvent is mentioned. In addition, the stability required for molecular vibrations and the physical stability of ultrasound waves due to electromagnetic waves are required during heating of food by microwave ovens.
The scratch strength of the zeotropic pigment is very weak and can be confirmed to be scratching. It is easily scratched by the sharpness, and is vulnerable to ultrasonic waves and microwaves.
In order to improve this, the hardness of the capsule can be increased by increasing the hardness of the silane (see FIG. 6). This is possible by the networking of silica sol and alkoxysilane with high hardness after introduction of the silane group into the melamine. Especially among the silanes used herein, epoxy silane can maximize its stability to its network and solvent, ultrasound and microwave.
The composition of the temperature sensitive ceramic paint according to the present invention can be seen in FIG. 6, wherein a silane group is introduced in reaction with silane, especially epoxy silane, with a melamine resin, then a colloidal metal sol and an alkoxysilane are sequentially reacted, It is a structure in which a stable zeolite coating which is strong and does not penetrate the capsule wall is completed in the form of an inorganic binder. The epoxy silane is more preferably 3-glycidoxypropyltrimethoxysilane.
On the other hand, in order to exhibit the performance of such a film composition, the silicate chemical bonding and dispersing with the inorganic resin should be good, the cracking and the pinhole should not be existent and the hardness of the film should be high, The paint of the present invention satisfies this requirement.
The temperature sensitive ceramic coating material according to the present invention is an inorganic temperature sensitive coating material, which is based on a colloidal silica hydrolysis reaction product and can be used alone as a top coat or as a base coating, a zeolite coating or an upper coating have. Depending on the application, the specific components may be different as shown in Table 1.
Hereinafter, a method of producing a coating material for each use will be described.
1) Temperature-sensitive ceramic paint
The inorganic binder used in the temperature sensitive ceramic paint of the present invention is a hydrolysis reaction product in which a colloidal metal sol is hydrolyzed with a metal alcohol side. The temperature responsive ceramic paint is prepared by the reaction as shown stepwise in Fig.
The colloidal metal sol used in this case can be used both acidic and alkaline, and affects physical properties required of the final coating film of the solid content, so that it can be used in a range of 10 to 50% depending on the application purpose.
First, the colloidal metal sol is hydrolyzed with a metal alkoxide. In this case, the pH of the colloidal silica is adjusted so that the pH of the colloidal silica is 2 to 6, and then the colloidal metal sol and the metal alkoxide are hydrolyzed A binder can be obtained.
As the pH regulator to be used, various acids can be used. The pH of the colloidal silica is adjusted to a range of 2 to 6 by using organic acids such as acetic acid, formic acid, sulfuric acid and acrylic acid, and hydrolysis is performed using a metal alkoxide Used as an inorganic binder.
A base paint for temperature sensitive paints, a ceramic base paint, a transparent topcoat paint, a pad and a screen printing paint in Table 6 were produced by selectively adding an extender pigment solvent, a pigment, a thickener and a padding agent, do.
2) Coating and pad printing and silk screen printing
The process of painting and printing is as follows.
- 1coat-1baking: The temperature-sensitive ceramic paint is firstly applied and cured.
- 3coat-1baking: Ceramic base paint is applied, then temperature-sensitive ceramic paint and transparent topcoat are sequentially applied and cured at 240 ° C for 30 minutes.
-Base coat & drying, print, coat-baking: Ceramic base paint is applied and dried, then the pad and screen printing ceramics temperature sensitive paint are printed, then transparent ceramic top coat is applied and cured at 240 ℃ for 30 minutes. Obtain a coating layer on which water is printed. This makes it possible to print in a variety of designs and colors because it is possible to print differently from the temperature sensitive coating such as the existing marble or two-tone.
The temperature sensitive ceramic coating can be prepared according to the following reference examples.
[Reference Example 1] Introduction of epoxy functional group of zeotropic pigment and inorganic resin composition
15 g of silane (especially epoxy silane) was added to 10 g of a zeotropic pigment coated with melamine formaldehyde, and the mixture was reacted at 75 ° C for 18 hours, filtered and washed to introduce a trimethoxyhydroxypropylsilane group.
[Reference Example 2]
After 15 g of acidic colloidal silica sol and 7 g of colloidal zirconia were added to 5 g of the silane pigment introduced in Reference Example 1, and the mixture was reacted at 70 ° C for 3 hours, 40 g of tetraethoxysilane was added, 10 g of ethanol and 15 g of water were added And further reacted at 40 DEG C for 3 hours. Thereafter, a vacuum is applied to remove the alcohol at 10 torr, and then the same amount of cellosolve as the alcohol removed is added.
The composition and application method of the temperature sensitive application base paint, the general base paint, the temperature sensitive screen for temperature application or the pad printing paint are shown in Table 1 below. The following components represent weight ratios and each component can be adjusted in the range of ± 5 to ± 20%.
Claims (5)
Introducing a colloidal metal sol;
Wherein the temperature-responsive ceramic coating material is a thermosensitive ceramic coating material formed by reacting with alkoxysilane.
A second step of painting the upper surface with the temperature sensitive ceramic coating material;
A third step of top coating with a ceramic clear paint and drying;
4) printing the temperature-sensitive ceramic paint by screen printing or pad printing;
The method of claim 1,
A second step of printing the temperature sensitive ceramic coating material by a screen printing method or a pad printing method;
A third step of top-coating the glass as a ceramic clear paint;
The method of claim 1,
Wherein the substrate is one of a plastic, a tile, a metal, a kitchen container, an electronic device, an electric heating element, a metal mold, and a defoaming terminal.
Wherein the colloidal metal sol comprises at least one of colloidal silica, colloidal alumina, colloidal titania, and colloidal zirconia;
The alkoxysilane may be at least one selected from the group consisting of tetraethoxysilane, methyltrimethoxysilane, tetramethoxysilane, fluorosilane, phenyltrimethoxysilane, ethyltrimethoxysilane, glycidoxypropyltrimethoxysilane, acryltriethoxysilane , Methacryloxypropyltrimethoxysilane, and vinyltriethoxysilane. ≪ Desc / Clms Page number 19 >
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101893581B1 (en) * | 2018-07-03 | 2018-08-30 | 노세윤 | Surface Coating Method Exhibiting Thermo-responsive Color Change with Flouride Resin |
| KR20190092690A (en) | 2018-01-31 | 2019-08-08 | 진지영 | Ceramic coating composition for anti-microbial coating |
| JP2020513471A (en) * | 2016-11-22 | 2020-05-14 | ビーエーエスエフ コーティングス ゲゼルシャフト ミット ベシュレンクテル ハフツングＢＡＳＦ Ｃｏａｔｉｎｇｓ ＧｍｂＨ | Optical coating with low refractive index |
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| KR20120130523A (en) * | 2011-05-23 | 2012-12-03 | 주식회사 에스아이켐 | Manufacturing method of inorganic thermochromic water-born coating agent with heating and cooling energy efficient, and its manufacturing method |
| KR101292555B1 (en) * | 2012-11-26 | 2013-08-09 | 대한화인세라믹 주식회사 | Thermally responsive cooker and manufacturing method thereof |
| KR20150053216A (en) * | 2014-02-07 | 2015-05-15 | 김태웅 | A reversible changeable coating composition and a method thereof |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| KR101146415B1 (en) * | 2009-04-24 | 2012-05-17 | 하상훈 | Processing method of cooking instrument and the cooking instrument thereby |
| KR20120130523A (en) * | 2011-05-23 | 2012-12-03 | 주식회사 에스아이켐 | Manufacturing method of inorganic thermochromic water-born coating agent with heating and cooling energy efficient, and its manufacturing method |
| KR101292555B1 (en) * | 2012-11-26 | 2013-08-09 | 대한화인세라믹 주식회사 | Thermally responsive cooker and manufacturing method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2020513471A (en) * | 2016-11-22 | 2020-05-14 | ビーエーエスエフ コーティングス ゲゼルシャフト ミット ベシュレンクテル ハフツングＢＡＳＦ Ｃｏａｔｉｎｇｓ ＧｍｂＨ | Optical coating with low refractive index |
| JP7073390B2 (en) | 2016-11-22 | 2022-05-23 | ビーエーエスエフ コーティングス ゲゼルシャフト ミット ベシュレンクテル ハフツング | Optical coating with low index of refraction |
| KR20190092690A (en) | 2018-01-31 | 2019-08-08 | 진지영 | Ceramic coating composition for anti-microbial coating |
| KR101893581B1 (en) * | 2018-07-03 | 2018-08-30 | 노세윤 | Surface Coating Method Exhibiting Thermo-responsive Color Change with Flouride Resin |
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