KR20100027471A - Ceramic lightweight tile and manufacturing method thereof - Google Patents

Abstract

PURPOSE: A manufacturing method of light weight ceramic tiles and the light weight ceramic tiles manufactured thereby are provided to improve convenience for cleaning the tiles, and to prevent surface contamination of the tiles with lightness, thermal insulation, and heat insulation etc. CONSTITUTION: A manufacturing method of light weight ceramic tiles comprises the following steps: molding the tiles(150) with powder of kaolin, organic material clay, lithium enterolith, albite, halloysite diatomite, fly ash, limestone, dolomite, talcum, tannic acid lignin, silicon carbide etc; drying the molded tiles; applying Engobe glaze(21) on the top surface of the dried tiles; applying crystalline antibacterial glace(22) on which nanosilver antimicrobial agent is added; sintering the tiles; and drying the tiles after coating a stain proofing agent(30) on the surface of the sintered tiles.

Description

Ceramic lightweight tile and manufacturing method thereof

The present invention relates to a ceramic light tile and a method for manufacturing the same, and more specifically, to organic clay, lithium feldspar or soda feldspar, halosite-like kaolin, diatomaceous earth or fly ash, cullet, limestone or dolomite, talc, lignin tannin, silicon carbide A molding step of molding the powder of (SiC) into a tile; A drying step of drying the molded tile or a firing step of firing the molded tile; A milking step of firstly applying a high refractory Engobe glaze to the top surface of the dried tile or calcined tile, and a second crystalline antibacterial glaze having nanosilver antimicrobial agent added to the first stained surface; Firing the oil-treated tiles; The present invention relates to a ceramic lightweight tile manufactured by the method comprising the step of applying an antifouling agent on the surface of the calcined tile and then drying the antifouling agent, and a manufacturing method thereof.

Tiles used in conventional general indoor walls and floors are made of inorganic raw materials commonly used, namely clay, kaolin, feldspar, pottery, and the like, to apply glazes to the surface of the substrate and add a design to make a product. However, the tile described above does not have any special functionalities other than the ease of cleaning due to the glass and the decoration and the surface is simply visually confirmed, the cold energy is felt as it is in contact with the human body to form a discomfort, At the present time when the tile is going to be enlarged, there are disadvantages such as difficulty in transporting, handling and construction due to the heavy weight due to the thick thickness.

     Looking at lightweight foamed ceramic products using conventional inorganic raw materials, the waste resources are introduced, but the manufacturing cost is increased due to a decrease in productivity through a complicated manufacturing process. In addition, by magnetizing the base to induce foam expansion, the firing temperature is high, coarse pores are formed due to excessive foaming, and because the glazing treatment is not applied to the surface, pin holes, bubbles due to the release of carbon dioxide (CO2) during the firing process Etc. have a disadvantage of high surface failure rate. In addition, it is known that a product using waste resources may release harmful substances over time.

     In addition, widely used construction materials with light weight, heat insulation and soundproofing are widely used organic chemicals, glass wool and asbestos, expanded polystyrene, etc., which are vulnerable to heat resistance and easily deformed or flammable by heat. In case of fire, toxic gas is generated, and it can cause fatal harm to human body.

The present invention has the function of light weight, heat insulation, heat insulation, sound insulation, sound absorption, etc., by adding a nano silver antimicrobial agent to the glaze applied to the surface of the ceramic body has antibacterial and antifungal functions, by coating an antifouling agent on the glaze coated surface An object of the present invention is to provide a ceramic lightweight tile and a method of manufacturing the same, which can exert an easy cleaning and surface contamination prevention function.

The present invention is a molding step of molding a powder of organic clay, lithium feldspar or soda feldspar, halosite-like kaolin, diatomaceous earth or fly ash, cullet, limestone or dolomite, talc, lignin tannin, silicon carbide (SiC) into a tile; A drying step of drying the molded tile or a firing step of firing the molded tile; A milking step of firstly applying a high refractory Engobe glaze to the top surface of the dried tile or calcined tile, and a second crystalline antibacterial glaze having nanosilver antimicrobial agent added to the first stained surface; Firing the oil-treated tiles; It is possible to provide a ceramic lightweight tile manufactured by the method comprising the step of coating the antifouling agent after coating the antifouling agent on the surface of the calcined tile and a method for producing the same.

The present invention can provide a ceramic lightweight tile capable of exhibiting light weight, heat insulation, heat insulation, sound insulation, sound absorption, antibacterial and anti-mildew functionality, and easy cleaning and surface contamination prevention function and a method of manufacturing the same.

The present invention shows a method for producing a ceramic lightweight tile.

The present invention shows a method for producing a ceramic lightweight tile using a single firing process and a method for producing a ceramic lightweight tile using a dual firing process.

Method for producing a ceramic lightweight tile using a single firing process of the present invention,

Molding of powders of organic clay, lithium feldspar or soda feldspar, halosite kaolin, diatomaceous earth or fly ash, cullet, limestone or dolomite, talc, lignin tannin, silicon carbide (SiC) into tiles;

     Drying step of drying the molded tile;

     Milking step of feeding a highly refractory Engobe glaze (Engobe glaze) on the dried tile upper surface first, and the crystalline antibacterial glaze with nano-silver antibacterial agent added to the secondary oiled surface first;

     Firing the oil-treated tiles;

     And applying an antifouling agent on the surface of the fired tile and then drying the antifouling agent.

In the above method of manufacturing a ceramic lightweight tile using a single firing process of the present invention,

20-30% by weight of organic clay, 40-60% by weight of lithium feldspar or soda feldspar, 10-20% by weight of halosite kaolin, 5-10% by weight of diatomaceous earth or fly ash, 2-10% by weight of cullet, limestone or A molding step of forming 5-10% by weight of dolomite, 1-5% by weight of talc, 1-3% by weight of lignin tannin and the remainder of silicon carbide (SiC) powder into tiles under a pressure of 250-350 kg / cm ² ;

     A drying step of drying the molded tile at 110 to 150 ° C. for 50 to 70 minutes;

A high refractory Engobe glaze of 100 to 150 gr / m ² is first applied to the dried tile upper surface, and a crystalline antibacterial glaze to which nanosilver antimicrobial agent is added is added to a secondary surface on the first stained surface. An oiling step for oiling in the range of 150 gr / m ² ;

     A firing step of firing the oil-treated tile under conditions of a maximum firing temperature of 1,100 to 1,170 ° C., a maximum holding time of 0.5 to 5 minutes, and a total firing time of 40 to 60 minutes;

The antifouling agent is coated on the surface of the calcined tile at 10 to 50 gr / m ² and then dried at 150 to 200 ° C. for 30 to 60 minutes.

The manufacturing method of the ceramic lightweight tile using the double firing process of the present invention,

Molding of powders of organic clay, lithium feldspar or soda feldspar, halosite kaolin, diatomaceous earth or fly ash, cullet, limestone or dolomite, talc, lignin tannin, silicon carbide (SiC) into tiles;

     A primary firing step of firing the molded tile;

     A milking step of first feeding high fire-resistant Engobe glaze on the top surface of the calcined tile and secondly adding a crystalline antibacterial glaze to which nanosilver antibacterial agent is added on the first stained surface;

     A second firing step of firing the oil-treated tile;

     And applying an antifouling agent on the surface of the fired tile and then drying the antifouling agent.

In the above method of manufacturing a ceramic lightweight tile using the double firing process of the present invention,

20-30% by weight of organic clay, 40-60% by weight of lithium feldspar or soda feldspar, 10-20% by weight of halide-like kaolin, 5-10% by weight of diatomaceous earth or fly ash, 2-10% by weight of cullet, limestone or dolomite A molding step of forming 5 to 10% by weight, 1 to 5% by weight of talc, 1 to 3% by weight of lignin tannin and a balance of silicon carbide (SiC) powder into tiles under a pressure of 250 to 350 kg / cm ² ;

     Firing the molded tile for 30 to 50 minutes, but firing for 0.5 to 5 minutes at a maximum firing temperature of 1,000 to 1,050 ° C .;

A high refractory Engobe glaze of 100 to 150 gr / m ² is first applied to the fired tile upper surface, and a crystalline antibacterial glaze to which nanosilver antimicrobial agent is added is added to a second surface on the first stained surface. An oiling step for oiling in the range of 150 gr / m ² ;

     A second firing step of firing the oil-treated tile under conditions of a maximum firing temperature of 1,100 to 1,170 ° C., a maximum holding time of 0.5 to 5 minutes, and a total firing time of 40 to 60 minutes;

The antifouling agent is coated on the surface of the calcined tile at 10 to 50 gr / m ² and then dried at 150 to 200 ° C. for 30 to 60 minutes.

In the method for producing a ceramic lightweight tile using the double firing step or the single firing step of the present invention, Engobe Glaze is 30 to 55% by weight frit, 10 to 15% by weight silica, 15 to 20% by weight kaolin, Those containing 10 to 15% by weight of zirconium silicate and 10 to 20% by weight of caliparite can be used.

In the manufacturing method of the ceramic lightweight tile using the double firing step or the single firing step of the present invention, the crystalline antibacterial glaze to which the nanosilver antimicrobial agent is added is 20 to 40% by weight frit, 5 to 20% by weight wollastonite, kali 5-20 weight% of feldspar, 20-40 weight% of soda feldspar, 5-10 weight% of kaolin, 5-10 weight% of clay, and 2-4 weight% of nano silver can be used.

In the method of manufacturing a ceramic lightweight tile using the double firing step or the single firing step of the present invention, the antifouling agent is a fluorine compound.

Examples of the fluorine compound include polytetrafluorethylene (PTFE), polychlorotrifluoroethylene (PCTFE), polyvinylidene fluoride (PVDF), and polyfluorovinyl (PVF) Any one selected from can be used.

In the method for producing a ceramic lightweight tile using the double firing step or the single firing step of the present invention, an antifouling agent is a fluorine compound having hydrophobicity.

As one example of the hydrophobic compound having a hydrophobicity, a perfluoroether having a silane functional group or a perfluoroether having a phosphate functional group can be used.

The present invention includes a ceramic lightweight tile manufactured by the method of manufacturing a ceramic lightweight tile using the above-mentioned double firing process or a single firing process.

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

The first step (single firing step tile molding molding method) of the present invention can be represented as follows.

(1) 20 to 30% by weight of organic clay, 40 to 60% by weight of lithium feldspar or soda feldspar, 10 to 20% by weight of halosite quality kaolin, 5 to 10% by weight of diatomaceous earth or fly ash, 2 to 10% by weight of cullet, A clay step of finely pulverizing and spray-drying a lightweight tile body including 5 to 10% by weight of limestone or dolomite, 1 to 5% by weight of talc, 1 to 3% by weight of lignin tannin, and 0.1 to 1% by weight of silicon carbide (SiC),

(2) dry powder forming step of forming a spherical powder into a tile under a hydraulic molding pressure of 250 to 350 kg / cm ² in a hydraulic press;

(3) a drying step of drying the green molded green tile at a drying temperature of 110 to 150 ° C. and a drying time of 50 to 70 minutes,

(4) Oil-resistant primary glaze (Engobe glaze) is applied to the dried green tile surface in the range of 100 to 150 gr / m ² , and secondly, the crystalline antibacterial glaze with nano silver antibacterial agent is added to 100 to 150 gr / m ^2. After applying the printing paste to the design, select the mesh specification (24HD ~ 170T, number: the number of yarns within 1cm in length, HD (38 microns), T (33 microns): the thickness of the yarn) into silk screen. An oiling step, which is a glaze application for printing or printing with a ROTO COLOR printing machine, and

(5) The highest temperature (where the highest temperature in the baking zone among preheating zone, firing zone, and cooling zone) is used in continuous hearth kiln in firing temperature 1,100 ~ 1,170 ℃, maximum holding time 0.5 Firing step of foam expansion under a condition of -5 minutes and a total firing time of 40 to 60 minutes,

(6) a surface coating step of applying an antifouling agent to the surface of the fired product 10 to 50 gr / m ² and drying at a drying temperature of 150 to 200 ℃, drying time 30 to 60 minutes,

(7) In order to make the size of the coated product uniform, the grinding machine attached with wet abrasive grind is polished with a maximum forward speed of 120m / min and rotated 90 ° to polish the remaining symmetrical plane. After the continuous drying kiln (Roller dryer) according to the single firing dry forming method characterized in that it comprises a dimensional correction drying step of simultaneously polishing and drying at a drying temperature of 200 ~ 300 ℃, a total drying time 30 ~ 60 minutes Provided is a method for producing a ceramic lightweight tile of multi-functional, beneficial and hygienic for the human body having ultra-light weight.

In addition, the 2nd process (dual baking process tile shaping | molding method) of this invention can be represented as follows.

Instead of the drying step of step (3) in the method of the first step,

(3 ') Primary firing for producing biscuit tiles in a continuous firing kiln having a dry molded green tile having a maximum firing temperature of 1,000 to 1,050 ° C, a maximum holding time of 0.5 to 5 minutes and a total firing time of 30 to 50 minutes. Provided is a method of manufacturing a ceramic lightweight tile according to a double firing dry forming method, characterized in that to perform a step.

The ceramic lightweight tile of the present invention is 20 to 30% by weight of organic clay, 40 to 60% by weight of lithium feldspar or soda feldspar, 10 to 20% by weight of halosite quality kaolin, 5 to 10% by weight of diatomaceous earth or fly ash, and 2 to 4% cullet 10 weight%, 5-10 weight% of limestone or dolomite, 1-5 weight% of talc, 1 to 3 weight% of lignin tannins, and 0.1 to 1 weight% of silicon carbide (SiC) can be used as a lightweight tile material.

In addition, the highly fire-resistant primary glaze layer, which is one layer of the glaze layer, includes 30-40 wt% of frit, 10-15 wt% of silica, 15-20 wt% of kaolin, 10-15 wt% of zirconium silicate, and 10 calistone The primary glaze (Engobe glaze) which consists of -20 weight% can be used.

On the other hand, the secondary glaze layer applied on the primary glaze layer includes a nano silver antimicrobial agent, wherein the secondary glaze (crystalline antibacterial glaze) frit 20-40% by weight, wollastonite 5-20% by weight, kali Secondary glaze consisting of 5 to 20% by weight of feldspar, 20 to 40% by weight of soda feldspar, 5 to 10% by weight of kaolin, 5 to 10% by weight of clay, and 2 to 4% by weight of nanosilver, an antimicrobial agent Glaze) can be used.

On the other hand, a fluorine compound or a fluorine compound having hydrophobicity may be applied onto the primary glaze layer and the secondary glaze layer.

Examples of the fluorine compound include polytetrafluorethylene (PTFE), polychlorotrifluoroethylene (PCTFE), polyvinylidene fluoride (PVDF), and polyfluorovinyl (PVF). Any one selected from the group can be used.

As an example of the hydrophobic fluorine compound described above, a perfluoroether having a silane functional group or a perfluoroether having a phosphate functional group can be used.

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

Ceramic light weight tile according to the present invention is feldspar (lithium feldspar or soda feldspar) to promote the sinterability by reducing the fire resistance of the body at low temperatures, talcum and cullet to promote the low temperature meltability and liquefaction of the surface, light weight is low Diatomaceous earth or fly ash to enhance its properties, kaolin to decrease the coefficient of thermal expansion, organic clay to form micropores inside the body by viscous force and combustion of organic matter, micropores by lignin tantanate and carbon dioxide (CO ₂ ) release. Limestone, dolomite, and silicon carbide (SiC), which form swelling pores, are used as the main material of tile.

In addition, a glaze layer is formed on the surface of the dried and / or primary fired tile. At this time, the glaze may be applied to the primary glaze layer and the secondary glaze layer. As the primary glaze, a high refractory primary glaze consisting of frit, quartz, kaolin, zirconium silicate, and calistone is used, and as the secondary glaze, crystalline antibacterial glaze. To produce tiles without design on the surface or frit on the oiled surface after use as a cover glaze consisting of wollastonite, calligraphy, soda feldspar, kaolin, clay and Nano Silver antimicrobial Lightweight tiles can be produced by printing a printing paste consisting of inorganic pigments and kaolin on a mesh screen or rotocolor printing machine.

The material of the tile used in the manufacture of the light tile according to the present invention is specifically 20 to 30% by weight of organic clay, 40 to 60% by weight of lithium feldspar or soda feldspar, 10 to 20% by weight of halosite quality kaolin %, Diatomaceous earth or fly ash 5-10% by weight, cullet 2-10% by weight, limestone or dolomite 5-10% by weight, talc 1-5% by weight, lignin tannins 1-3%, silicon carbide (SiC) 0.1 It contains -1 weight%.

The method of manufacturing the ceramic lightweight tile of the present invention may be divided into a single firing process tile forming method (see FIG. 1) and a double (double) firing process tile forming method (see FIG. 2).

Method for manufacturing a ceramic lightweight tile of the present invention will be described in more detail with reference to FIGS. 1A and / or 1B.

As shown in FIG. 1A, in the method of manufacturing a ceramic lightweight tile according to the present invention using a single baking process tile forming method, first, the content of iron (Fe ₂ O ₃ ) is 1.5% or less, preferably iron (Fe) in the clay step. Organic clay having a content of ₂ O ₃ ) of 0.5 to 1.5%, kaolin having a content of alumina (Al ₂ O ₃ ) of 30% or more, preferably 30% to 50% of alumina (Al ₂ O ₃ ), SiO ₂ Diatomaceous earth having 80% or more, preferably 80% to 99.9% SiO ₂ , talc having a MgO component of 30% or more, preferably talc having a MgO component of 30% to 50%, and a CaO component of 50% or more, preferably CaO component is 50% ~80% of limestone, Na ₂ O is more than 6%, preferably Na ₂ O is 6-20% of soda feldspar, tannic acid lignin, Cullet, the basis weight as much as the specified amount of silicon carbide in the Put 50 ~ 80% of water to dry weight of subsidiary to ball mill for grinding Let's do it. At this time, the specific gravity of the produced slip is set to about 1.4 to 1.7, and the residual ratio is set to 2 to 5% (based on 230 mesh). At this time, if the residual ratio is lowered to 2% or less, preferably 0.5% to 2%, the shrinkage of the substrate increases during the firing process, and thus foam expansion does not occur as intended. Shrinkage and expansion of the expansion) is large, plastic deformation easily occurs, if higher than 5%, the mixing between the raw material and the blowing agent is not properly made, it is difficult to form the intended expansion-expanded voids, the sintering degree is not able to obtain the desired physical properties. After aging this slip for at least one day, the water content of the spray dryer is 6-8%, the particle size (0.5 mm or more) is 15% or less, preferably 10-15%, fine (0.08 mm or less). After preparing the granulated powder having a particle size of 3% or less, preferably 1 to 3%, it may be aged for at least 24 hours, preferably 24 to 72 hours.

In the next dry molding step, the granulated powder is molded in a hydraulic press at a seal molding pressure of 250 to 350 kg / cm ^2, and the green tile dried in the drying step is dried in a drying chamber (Vertical or Mangle dryer) at a drying temperature of 110 to 150 ° C. It dries for 50 to 70 minutes.

Subsequently, in the milking step, the glaze is applied to the dried upper surface of the green tile. A high fire-resistant primary Engobe glaze is oiled from 100 to 150 gr / m ² , and a crystalline antibacterial glaze added with a secondary nanosilver antimicrobial agent is used. After the 100-150 gr / m ² oiling, the glaze paste may be printed by silkscreen by selecting a mesh specification (24HD-170T) according to a design, or by printing on a ROTO COLOR printing machine.

In the next firing step, the dairy product is temporarily stored in a container, and then fired at a maximum firing temperature of 1,100 to 1,170 ° C., a maximum holding time of 0.5 to 5 minutes, and a total firing time of 40 to 60 minutes in a roller hearth kiln. Let's do it.

In the surface coating step, the top surface of the calcined tile is polytetrafluorethylene (PTFE), polychlorotrifluoroethylene (polychlorotrifluoroethylene, PCTFE), polyvinylidene fluoride (polyfluorovinylidene, PVDF), and polyfluorovinyl (polyfluorovinyl). And 10 to 10 fluorocarbon antifouling agents having hydrophobicity of a perfluoroether having a fluoro compound or a silane functional group or a perfluoroether having a phosphate functional group selected from the group of PVF). 50gr / m ^{2 was} applied and dried in a continuous dryer kiln at a drying temperature of 150 to 200 ° C. and a total drying time of 30 to 60 minutes.

Subsequently, in the Rectify step, the finished product of the ceramic lightweight tile may be manufactured by undergoing a dimensional correction process of grinding four sides with a grinding machine with abrasive grinds for uniform dimensional correction of the fired product.

As shown in FIG. 1B, a method of manufacturing a ceramic lightweight tile using a double baking process tile forming method performs primary firing instead of a drying step in the method of the single firing dry forming method, wherein the primary firing step is dry-molded. Green tiles are produced by producing tiles in a continuous firing kiln having a maximum firing temperature of 1,000 to 1,050 캜, a maximum holding time of 0.5 to 5 minutes, and a total firing time of 30 to 60 minutes. In the following sieving step, the steps up to the finished product are performed in the same manner as the single baking process tile forming method.

Feldspar (lithium feldspar or soda feldspar) and cullet used in the ceramic lightweight tile of the present invention are suitable for producing the present invention because it reduces the degree of fire resistance of the substrate and promotes sintering at low temperatures. Organic clay is in use at the same time as that when the content of iron is preferably less than the content of iron (Fe2O3) 1.5%, (Fe 2 O 3) of 0.5~1.5% enhance the whiteness by firing jeomryeok excellent molding the tile Suitable. Kaolin is fired by lowering the alumina (Al2O3) is 30% or more, preferably alumina (Al ₂ O ₃₎ content is 30-50% of the thermal expansion coefficient and free silica (Free SiO2) of the substrate by using the content of the The deformation can be prevented. Talc has a content of magnesium oxide (MgO) of 30% or more, preferably 30% to 50% of the MgO component, by using the talc in the base material to reduce the degree of fire resistance and ease of molding due to the effect of smooth lead Of course, the swelling expansion rate is lowered after sintering, thereby reducing the expansion of the body by water, which is useful for preventing oil cracks. Limestone is a diatomaceous earth or ply which is a porous material having a low specific gravity by forming carbon micropores through carbon dioxide (CO2) release in the body using a CaO component of 50% or more, preferably 50% to 80% of the CaO component. Ash is used to promote light weight and porosity, thus meeting the object of the present invention. Lignin tannins reinforce viscous forces like clay, and silicon carbide forms swelling pores due to the release of gases during decomposition.

In the present invention, when the glaze layer is formed, the first glaze layer has a high degree of fire resistance in the primary glaze layer, thereby absorbing carbon dioxide (CO2) generated in the base during the firing process in the primary glaze layer, thereby completing the glaze layer. It is possible to prevent defects such as pinholes and bubbles that may be generated. In addition, through the use of crystalline antibacterial glaze with nano silver antimicrobial agent added to the first glaze layer, the cotton tissue forms crystalline, high wear resistance, slip resistance, can be given antimicrobial and anti-fungal functionality by nano silver antimicrobial agent. .

In the present invention, by applying an antifouling agent of a fluorine compound or a hydrophobic compound having hydrophobicity on the surface of the tile fired product, it further enhances functionality by providing easy cleaning and surface contamination prevention function, and also provides aesthetic sense through color printing. can do.

On the other hand, the method for producing a ceramic lightweight tile of the present invention was carried out under various conditions. In order to achieve the object of the present invention, the ceramic lightweight tile is manufactured under the above-mentioned conditions, and the ceramic lightweight tile obtained by such a method is It is desirable to provide.

Hereinafter, the content of the present invention will be described in detail through examples and test examples. However, these are intended to explain the present invention in more detail, and the scope of the present invention is not limited thereto.

<Example 1>

The ceramic lightweight tile was manufactured using a single baking process tile forming method (see FIG. 1A).

25% by weight of organic clay, 42.5% by weight of soda feldspar, 10% by weight of halosite quality kaolin, 10% by weight of diatomaceous earth, 2% by weight of lime glass, 5% by weight of limestone, 3% by weight of talc, 2% by weight of lignin tannin SiC) 0.5% by weight was weighed and then placed in a ball mill with 52% water by weight of the subsidiary dry weight for wet grinding, and operated for 13 hours to make a slip with a specific gravity of 1.7 and a residual ratio of 3.1% (based on 230 mesh). In the spray dryer, spherical powders having a powder moisture content of 7.4%, powder alleles (more than 0.5 mm), 11.2%, and fine grains (0.08 mm or less) were 2.8%.

In the next dry molding step, the spherical powder was dry-molded to 300mm ㅧ 300mm ㅧ 7.5mm in a hydraulic press at 300kg / cm2 under the hydraulic press to form a tile base layer 10 which is a green tile.

The molded green tiles were dried at 130 ± 20 ° C. for 60 ± 10 minutes.

Engobe glaze consisting of 40% by weight of frit, 10% by weight of silica, 20% by weight of kaolin, 10% by weight of zirconium silicate, and 20% by weight of feldspar on the surface of the dried green tile in the next oiling step. Was applied by spraying to form a primary glaze layer 21.

After applying the primary glaze layer, frits 35% by weight, wollastonite 10% by weight, kallisite 10% by weight, soda feldspar 28% by weight, kaolin 8% by weight, clay 9% by weight, nanosilver as an antimicrobial agent The secondary crystalline antibacterial glaze (Cover glaze) consisting of 2% by weight was applied by spraying on the primary glaze layer to form a secondary glaze layer 22.

At this time, the above glaze raw materials are added to the ball mill together with water, and then pulverized by wet pulverization. The residual ratio of the first Engobe glaze is 1.05% (325 mesh), specific gravity 1.51, and the second glaze of the secondary glaze. The residual ratio was 1.0% (325mesh standard) and 1.50% specific gravity glaze slip was used, and the first Engobe glaze was sprayed on the upper surface of the green tile to 120 gr / m ² through a high pressure spray method. Secondary crystalline antibacterial glaze (Cover glaze) was applied at 125gr / m ² through a high pressure spray (Spray). Thereafter, the printing paste containing the inorganic pigment was printed on a rotocolor print machine.

In the next firing step, a sintered product was prepared at a maximum firing temperature of 1165 ° C., a maximum holding time of 3 minutes, and a total firing time of 45 minutes.

In the next coating step, the antifouling agent applied to the surface of the fired article is applied at 45gr / m ² through a high pressure spray (Spray) using a perfluoroether having a silane functional group, and then a continuous drying kiln ( Roller dryer) was dried at a drying temperature of 150 ℃, a total drying time 40 minutes to form an antifouling agent layer (30).

In the next dimensional correction step, the whole surface was processed in a grinding machine (grinding machine) to which the abrasive grind is attached to manufacture the finished product 150 of the ceramic lightweight tile.

The perspective view of the ceramic lightweight tile prepared above is shown in FIG. 2.

<Example 2>

When manufacturing a ceramic lightweight tile using the single baking process tile forming method of Example 1, instead of the process of drying the molded green tiles at 130 ± 20 ℃ 60 ± 10 minutes, the maximum firing temperature of the molded green tile is The same method as in Example 1 was carried out except that the first firing step of firing the tiles in a continuous firing kiln of 1,025 ± 25 ° C., a maximum holding time of 3 ± 2 minutes, and a total firing time of 40 ± 10 minutes was carried out. It was applied to prepare a ceramic lightweight tile using a double baking process tile molding method (see Fig. 1b).

<Test Example 1>

Physical properties, far-infrared emissivity and radiation energy, antibacterial and antifungal effects, slip resistance, and abrasion resistance of the ceramic lightweight tile of the present invention prepared in Example 1 were measured and the results are shown in Tables 1 to 6-6 below. It was.

Table 1 Physical Properties of Ceramic Lightweight Tiles

Plastic shrinkage (%) Plastic strength (kg / cm ² ) Ignition loss (%) Absorption rate (%) Thermal Conductivity (W / mK) Apparent weight +5.59 173 4.23 2.29 0.6865 1.352

<Table 2> Far-Infrared Emissivity and Radiation Energy of Ceramic Lightweight Tiles

division Average emissivity (5 ~ 20㎛) Radiation energy (W / m ² ) invention 0.904 (90.4%) 3.65 ㅧ 10 ²

<Table 3> Antimicrobial Test Results of Ceramic Lightweight Tiles

Item Pseudomonas aeruginosa ATCC 15442 Escherichia coli ATCC 25922 Inoculation Bacterial Initial Concentration (CFU / 40p) 2866 2794 Concentration after 24 hours (CFU / 40p) 662 626 Bacteria Reduction Rate (%) 76.9 77.6

<Table 4> Anti-Mildew Test Results of Ceramic Lightweight Tiles

Sample Name invention Rating 0 Criteria   0: No growth 1: Grow up to 10% or less on the specimen 2: Grow up to 10-30% or less on the specimen 3: Grow up to 30-60% or less on the specimen 4: Grow 60% or more on the specimen Used strain Aspergillus niger ACTT 9642 Chaetomium globosum ACTT 6205 Penicillium pinophilum ACTT 11797 Gliocladium virens ACTT 9645 Aureobasidium pullulans ATCC 15233 Culture condition 29 ± 1 ℃, Relative Humidity 85% Sample size 50mm ㅧ 50mm

<Table 5> Slip resistance test results of ceramic lightweight tiles

Sample Name Friction Coefficient Test Results ISO standard DRY WET Rating DRY WET invention 0.84 0.61 Class 1 <0.5 <0.4 Plain Floor Tiles 0.79 0.38 Class 2 ≥0.5 ≥0.4

<Table 6-1> Wear Resistance Test Results of Ceramic Lightweight Tiles (ISO Standard)

Sample Name Wear resistance test results invention Class IV Plain Floor Tiles Class III

* The wear resistance of the tiles in the wear resistance test of the ceramic lightweight tiles of Table 6-1 is shown in Table 6-2 below.

<Table 6-2> ISO standard of wear resistance of tiles

Grade standard PEI revolutions Use (Yes) Class 0 100  Not suitable for Floor Tile Class Ⅰ 150  bedroom Class II 600  Livingroom Class III 750, 1500  Kitchen (residential), balcony, terrace, hall, hallway Class IV 2100, 6000, 12000  Kitchen (commercial), hotel, exhibition hall, entrance Class Ⅴ 12000 + stain resistance  Shopping Center, Airport, Hotel Lobby, Industrial Area

<Test Example 2>

The crystalline microstructure of the internal pores and glaze surface of the ceramic lightweight tile of the present invention prepared in Example 1 was measured by SEM and the results are shown in FIGS. 3 and 4, respectively.

Figure 3 is a SEM photograph (SEM # 50) showing the pore distribution of the internal cut surface of the ceramic lightweight tile prepared in the embodiment of the present invention, Figure 4 is a crystalline microstructure of the ceramic lightweight tile glaze prepared in the embodiment of the present invention SEM photograph showing the structure (SEM # 2000).

As described above, the present invention has been described with reference to the preferred embodiments and test examples, but those skilled in the art can vary the present invention without departing from the spirit and scope of the present invention as set forth in the claims below. It will be understood that modifications and changes can be made.

The ceramic lightweight tile of the present invention can reduce the manufacturing cost of the product by manufacturing the expanded foamed sintered body at a low firing temperature, and further increase the ease of handling and construction by reducing the weight of the material further by using a raw material having a low volume specific gravity. It is designed to increase energy efficiency through heat insulation and insulation and to maintain a quiet and comfortable indoor space through sound absorption and sound insulation. In addition, antibacterial crystalline glaze and antifouling agent treatment provides more comfortable and hygienic properties by providing additional wear resistance and slipperiness, antibacterial and antifungal effects, ease of cleaning and surface contamination prevention. Since there is an advantage to create a living environment, it can be said that the industrial availability.

1A is a manufacturing process diagram of a ceramic lightweight tile manufactured in Example 1 of the present invention.

1B is a manufacturing process diagram of the ceramic lightweight tile manufactured in Example 2 of the present invention.

2 is a perspective view of a ceramic lightweight tile of the present invention.

Figure 3 is a SEM photograph showing the pore distribution of the internal cut surface of the ceramic lightweight tile prepared in the embodiment of the present invention (SEM x 50).

Figure 4 is a SEM photograph showing the crystalline microstructure of the ceramic lightweight tile glaze surface prepared in the embodiment of the present invention (SEM x 2000).

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

10: tile holding layer 20: glaze layer

21: primary glaze layer 22: secondary glaze layer

30: antifouling layer 150: tile

Claims (8)

Molding of powders of organic clay, lithium feldspar or soda feldspar, halosite kaolin, diatomaceous earth or fly ash, cullet, limestone or dolomite, talc, lignin tannin, silicon carbide (SiC) into tiles; A first drying step of drying the molded tile; Milking step of feeding a highly refractory Engobe glaze (Engobe glaze) on the dried tile upper surface first, and the crystalline antibacterial glaze with nano-silver antibacterial agent added to the secondary oiled surface first; Firing the oil-treated tiles; The method of manufacturing a ceramic light tile comprising the step of coating the antifouling agent after coating the antifouling agent on the surface of the fired tile. According to claim 1, 20 to 30% by weight of organic clay, 40 to 60% by weight of lithium feldspar or soda feldspar, 10 to 20% by weight of halosite quality kaolin, 5 to 10% by weight of diatomaceous earth or fly ash, cullet 2 to 10 Molding to form 5% to 10% by weight, limestone or dolomite, 1 to 5% by weight of talc, 1 to 3% by weight of lignin tannin and the remainder of silicon carbide (SiC) powder into tiles under a pressure of 250 to 350 kg / cm ² step; A drying step of drying the molded tile at 110 to 150 ° C. for 50 to 70 minutes; A high refractory Engobe glaze of 100 to 150 gr / m ² is first applied to the dried tile upper surface, and a crystalline antibacterial glaze to which nanosilver antimicrobial agent is added is added to a secondary surface on the first stained surface. An oiling step for oiling in the range of 150 gr / m ² ; A firing step of firing the oil-treated tile under conditions of a maximum firing temperature of 1,100 to 1,170 ° C., a maximum holding time of 0.5 to 5 minutes, and a total firing time of 40 to 60 minutes; The antifouling agent coating step of applying an antifouling agent to the surface of the calcined tile at 10 to 50gr / m ² and then dried at 150 to 200 ℃ for 30 to 60 minutes. Molding of powders of organic clay, lithium feldspar or soda feldspar, halosite kaolin, diatomaceous earth or fly ash, cullet, limestone or dolomite, talc, lignin tannin, silicon carbide (SiC) into tiles; A primary firing step of firing the molded tile; A milking step of first feeding high fire-resistant Engobe glaze on the top surface of the calcined tile and secondly adding a crystalline antibacterial glaze to which nanosilver antibacterial agent is added on the first stained surface; A second firing step of firing the oil-treated tile; The method of manufacturing a ceramic light tile comprising the step of coating the antifouling agent after coating the antifouling agent on the surface of the fired tile. According to claim 3, 20 to 30% by weight of organic clay, 40 to 60% by weight of lithium feldspar or soda feldspar, 10 to 20% by weight of halideite kaolin, 5 to 10% by weight of diatomaceous earth or fly ash, cullet 2 to 10 Molding to form 5% to 10% by weight, limestone or dolomite, 1 to 5% by weight of talc, 1 to 3% by weight of lignin tannin and the remainder of silicon carbide (SiC) powder into tiles under a pressure of 250 to 350 kg / cm ² step; Firing the molded tile for 30 to 50 minutes, but firing for 0.5 to 5 minutes at a maximum firing temperature of 1,000 to 1,050 ° C .; A high refractory Engobe glaze of 100 to 150 gr / m ² is first applied to the fired tile upper surface, and a crystalline antibacterial glaze to which nanosilver antimicrobial agent is added is added to a second surface on the first stained surface. An oiling step for oiling in the range of 150 gr / m ² ; A second firing step of firing the oil-treated tile under conditions of a maximum firing temperature of 1,100 to 1,170 ° C., a maximum holding time of 0.5 to 5 minutes, and a total firing time of 40 to 60 minutes; The antifouling agent coating step of applying an antifouling agent to the surface of the calcined tile at 10 to 50gr / m ² and then dried at 150 to 200 ℃ for 30 to 60 minutes. The Engobe glaze according to any one of claims 1 to 4, wherein the Engobe glaze is 30 to 55% by weight frit, 10 to 15% by weight silica, 15 to 20% by weight kaolin, 10 to 15% by weight zirconium silicate. %, And 10-20% by weight of feldspar. The crystalline antimicrobial glaze to which the nano-silver antimicrobial agent is added comprises: 20 to 40 wt% frit, 5 to 20 wt% wollastonite, 5 to 20 wt% calliformite, 20-40% by weight of soda feldspar, 5-10% by weight of kaolin, 5-10% by weight of clay, and 2-4% by weight of nanosilver. The antifouling agent according to any one of claims 1 to 4, wherein the antifouling agent is a fluorine compound, polytetrafluorethylene (PTFE), polychlorotrifluoroethylene (PCTFE), polyfluorovinylidene (polyfluorovinylidene). , PVDF), any one selected from the group of polyfluorovinyl (PVF), or a hydrophobic fluorine compound, a perfluoroether having a silane functional group, a perfluoroether having a phosphate functional group The method for producing a ceramic lightweight tile which is any one selected from the group of. A ceramic lightweight tile produced by the method of any one of claims 1 to 7.

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