KR101441517B1 - Interior Material using Natural Material and Manufacturing Method thereof - Google Patents

Abstract

The present invention relates to a building interior material using a natural material and to a method of manufacturing the same, more specifically, to an interior material using a natural material, which is prepared by mixing and stirring a natural bonding material having a first mesh reinforcement material and a second mesh reinforcement material inside a surface layer and a back surface layer, respectively. The building interior material using a natural material of the present invention includes: a surface layer; a first mesh reinforcing material provided inside the surface layer; a back surface layer laminated to a back surface of the surface layer; and a second mesh reinforcement material laminated on a back surface of the back surface layer, wherein each of the surface layer and the back surface layer includes the natural bonding material constituted by mixing a vegetable starch, alum, and bay salt.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a natural-

The present invention relates to a building interior material using natural materials and a method of manufacturing the interior material. More particularly, the present invention relates to a natural material having a surface layer mixed with a natural adhesive agent and agitated and a first mesh reinforcement material and a second mesh reinforcement material, And a method for manufacturing the same.

With the development of the residential culture due to the improvement of the standard of living of the people, the use of high-grade environment-friendly building materials in building interior materials is increasing in order to enhance the convenience and aesthetic effect of space.

However, in order to improve the quality of the conventional building interior materials, a synthetic resin material containing various chemicals is used, and in order to enhance the aesthetic effect, a synthetic ink for printing a pattern or a picture is used. In addition, synthetic adhesives are used to provide secondary damages due to toxic gases in case of fire.

Due to these problems, laws have recently been enacted to limit the use of organic compounds harmful to human bodies and to use eco-friendly materials for buildings. In addition, due to the increase in income, the development of architectural interior materials using inorganic or natural materials harmless to the human body is actively pursued in accordance with the change of the construction environment where the demand for high-grade environmentally friendly building materials is increasing.

 For example, the registered patent No. 0844845 entitled " Environmentally-friendly construction interior material and its manufacturing method " discloses a method for producing a green interior material and a method for producing the same, which comprises a lower layer comprising a mixture of pine needles, And an inner wall between the upper layer and the upper layer to provide an easy adhesion to the wall by using an adhesive or an air tacker.

However, in the above-mentioned invention, the mixing ratio of gypsum and seaweed grass is high, but the netting is provided only between the lower layer and the upper layer, so that the flexibility of the interior material is poor and can be easily achieved. In addition, although the method of attaching the paper on the upper surface is described so that the adhesive can be used easily, since the paper and the upper surface are not integrated, the paper may be easily torn and separated due to the weight of the interior material after the construction have.

In addition, although the above-described invention uses seaweed grass, pine needles, and arthropods as eco-friendly materials, these materials have the biggest problem that they can be easily decayed and can be inhabited by fungi or bacteria. Therefore, although yellow loess which is excellent in antimicrobial and insecticidal effect is used to solve such a problem, there is a problem that the effect of antibacterial and insecticide of loess is not sufficiently exhibited because the amount of yellow loess is smaller than that of natural material.

In addition, in the registered patent No. 0918122, " binder composition for wallpaper, method for producing the same, wallpaper prepared using the same, and method for producing the same ", the natural adhesive contains 30-50 wt.% Of mulberry leaf extract, 5-10 wt.% Of zeolite particles, 2 to 5% by weight of particles, 1 to 2% by weight of sodium chloride and 2 to 10% by weight of starch. In the present invention, 1 to 2% by weight of sodium chloride is used to impart repellency to the composition. However, generally, about 5% by weight or more of the composition is mixed with the composition in terms of the weight of the whole composition, It can be said that 1-2% by weight of sodium chloride used can not have sufficient preservative function.

In order to solve the above-mentioned problems, the present invention provides a method for manufacturing a building interior material, which comprises a first mesh reinforcement inside a surface layer of a building interior material and a second mesh reinforcement material on the rear surface of the backside layer, And a method for manufacturing the same.

Further, the present invention is characterized in that a second mesh reinforcing member is provided on the back surface of a backing layer of a building interior material, and a mixture of the backing layer is infiltrated between the second mesh reinforcing members so that the backing layer and the second mesh reinforcing member are integrated, And a method for manufacturing the interior material using natural materials for preventing the second mesh reinforcing material from being torn or separated due to the weight of the interior material.

In addition, the present invention provides a building interior material using natural materials to which sun salt is added to prevent the decomposition of vegetable starch used as a natural adhesive, and a method for manufacturing the same.

In order to solve the above problems, according to a preferred embodiment of the present invention, A first mesh reinforcement disposed inside the surface layer; A back layer laminated on the back surface layer; And a second mesh reinforcing member laminated on the rear surface of the backing layer, wherein the surface layer and the backing layer each include a natural adhesive agent, and the natural adhesive agent is a mixture of vegetable starch, alum and sun salt. Providing a building interior material using natural materials.

According to another preferred embodiment of the present invention, the surface layer is formed by mixing the natural adhesive with a mixture of white-based kaolin or ceriseite powder and a natural inorganic pigment.

According to another preferred embodiment of the present invention, the backside layer is formed by mixing the natural adhesive with at least one of charcoal, loess or vermiculite powder.

According to another preferred embodiment of the present invention, the first mesh reinforcing member and the second mesh reinforcing member are a face or a hemp.

According to another preferred embodiment of the present invention, a surface of the surface layer is formed with a depression on the surface thereof.

According to another preferred embodiment of the present invention, the natural adhesive is a mixture of 25 to 60% by weight of vegetable starch, 25 to 60% by weight of alum, and 10 to 25% by weight of salt of sunflower.

According to another preferred embodiment of the present invention, the surface layer further comprises a coating layer comprising vegetable starch, alum and sun-salt.

According to another preferred embodiment of the present invention, there is provided a method for manufacturing a building interior material using natural materials, comprising the steps of: (a) mixing water with a mixture of vegetable starch, alum and sun salt, step; (b) mixing the natural adhesive with a mixture of kaolin or ceriseite powder of a white series and a natural inorganic pigment to prepare a first mixture, and mixing the mixture with at least one of charcoal, loess or vermiculite powder Mixing and agitating the natural adhesive to prepare a second mixture; (c) applying the first mixture to an upper surface of a forming die having an embossing sheet on which an embossed pattern is formed, the first mesh reinforcing material being laminated on the upper surface of the first mixture, followed by pressing and semi-drying, Forming a surface layer; (d) applying a second mixture to the back surface of the semi-dried surface layer and then semi-drying to form a semi-dried back layer, and laminating and pressing the second mesh reinforcing material on the back surface of the back layer; (e) completely drying the building interior material composed of the surface layer and the backside layer; And (f) separating the dried building interior material from a mold; The present invention provides a method for manufacturing a building interior material using a natural material.

According to another preferred embodiment of the present invention, in the step (a), 100 parts by weight of a natural adhesive mixture comprising 25 to 60% by weight of starch, 25 to 60% by weight of alum, and 10 to 25% And the mixture is heated and stirred.

The present invention according to another preferred embodiment is characterized in that before the step (c), a film-like water repellent agent is applied on the upper surface of the embossing sheet.

According to another preferred embodiment of the present invention, after the step (f), the surface of the surface layer is coated with a coating agent obtained by mixing vegetable starch, alum, and sun-salt into water and heating and stirring.

According to another preferred embodiment of the present invention, the coating agent is characterized in that 3 to 8 parts by weight of vegetable starch, 3 to 10 parts by weight of alum, and 1 to 5 parts by weight of sun salt are mixed with 100 parts by weight of water and heated and stirred .

The present invention provides a mesh reinforcing material on the inner surface and the back surface, respectively, to prevent cracks from occurring in the inner material, facilitates the use of takashimas during construction, and adheres to the surface to be adhered, Can be improved.

Since the backing layer of the building interior material is integrated with the second mesh reinforcement material, it is possible to prevent the second mesh reinforcement material from being torn or separated due to the weight of the building interior material even after construction.

According to the present invention, the building interior material can prevent the emission of harmful substances by using natural materials, and can expect the effects of far-infrared rays and anion radiation, antibacterial, antifungal, insect pest, insulation, flame-retarding, deodorization and dehumidification beneficial to the human body.

In addition, the interior materials for construction using natural materials can be replaced with boards, wallpaper, and interior sheets by using easy-to-install and easy-to-supply materials.

In addition, since the present invention uses natural materials, it can be expected to have an environment-friendly effect that can be biodegraded at the time of disposal to prevent environmental pollution.

In addition, in the present invention, since the indentation pattern is formed on the surface of the building interior material, flexibility of the interior material for building is improved, and new construction is facilitated without detaching the construction interior material, thereby saving time and cost.

1 is a sectional view showing a building interior material using the natural material of the present invention.
2 is a photograph showing a front surface and a back surface of a building interior material using the natural material of the present invention.
FIG. 3 is a photograph showing a depression pattern formed on the surface of a building interior material using the natural material of the present invention.

FIG. 1 is a sectional view showing a building interior material using the natural material of the present invention, and FIG. 2 is a photograph showing the front and back surfaces of a building interior material using natural materials.

1 and 2, a building interior material using the natural material of the present invention comprises a surface layer 10, a first mesh reinforcement 30 provided inside the surface layer 10, And a second mesh reinforcing material (35) laminated on the back surface of the back layer (20).

Each of the surface layer 10 and the backside layer 20 includes a natural adhesive to bond the first mesh reinforcement 30 and the second mesh reinforcement 35 to each other.

The natural adhesive is prepared by mixing vegetable starch, alum, and mannitol, and is preferably composed of 25 to 60% by weight of vegetable starch, 25 to 60% by weight of alum, and 10 to 25% by weight of salt of mannitol.

The vegetable starch may be a mixture of at least one of corn starch, potato starch, sweet potato starch, tapioca starch and glutinous rice flour. These vegetable starches are eco-friendly materials and are used to increase the adhesion.

In the present invention, the vegetable starch is preferably used in an amount of 25 to 60% by weight. If the vegetable starch is less than 25% by weight, it is difficult to expect an adhesive performance. If the vegetable starch is 60% by weight or more,

Conventionally, vegetable starch and alum were mixed and used as natural adhesives. However, natural adhesives have suffered from a problem of corruption and fungal growth. To solve these problems, the present invention additionally includes a starch salt in vegetable starch and alum.

The alum can be obtained by processing an alpine mineral, and it is a colorless and odorless transparent crystal, and has effects such as anti-inflammation, convergence, detoxification, insecticide, antibacterial and antiseptic, and the effect lasts semi-permanently. In addition, alum can be used for various purposes including the manufacture of medicines, sugar, paper, pate, deodorant, water purification agent, dyeing agent, fire extinguisher, etc. It is used in melted state by mixing with starch to improve strength, . These alum are mixed with sun salt to maximize preservation and antibacterial properties.

The alum is preferably ground to 200-400 mesh particles so that it can be mixed with the vegetable starch.

It is preferable that the alum is used in an amount of 25 to 60% by weight. If the alum is less than 25% by weight, the function of alum can not be expected. If the alum is more than 60% by weight, Or the mold may breed.

The salted salted salted salted salted salted salted salted salted salted salted salted salted salted salted salted salted salted salted salted salted salted salted salted salted salted salted salted salted salted salted salted salted salted salted salted salted salted salted salted salted salted salted salted salted salted salted salted salted salted salted salted salted salted salted salted salted salted salted salted salted salted salted salted salted salted salted salted Salted Salted Salted Salted Salted Salted Salinated However, when the amount of the salt used is increased, the antiseptic and antimicrobial properties are increased. However, since the dehumidifying effect is increased, the strength of the adhesive is weakened. In the present invention, the salt salt is preferably used in an amount of 10 to 25 wt%. If the amount of the salt is less than 10% by weight, the function of the preservative is difficult to expect. If the amount of the salt is 25% by weight or more, strong dehumidification absorbs much moisture.

The surface layer 10 is formed by mixing the natural adhesive mixture with a mixture of a white-based kaolin or sericite powder and a natural inorganic pigment. At this time, it is preferable that the kaolin or sericite powder and the natural inorganic pigment are respectively pulverized into 200 to 400 mesh particles and mixed.

The kaolin is also called kaolinite or clay, and feldspar such as feldspar, soda feldspar, or calcareous stone in the rock is produced by weathering which is chemically decomposed by carbonic acid or water. Kaolin, composed of minerals and various enzymes, emits a large amount of far-infrared rays and anions.

The kaolin is often used as a high-gloss, high-quality surface material.

The sericite, also called sericite, promotes blood circulation in the human body, emits far-infrared rays and anions that activate cells, and has a function of adsorbing various harmful substances. The sericite is white or grayish white and has a pearly luster that is often used as a luxurious exterior surface material.

The natural inorganic pigment is a mineral powder containing charcoal or pigment, and the color can be adjusted according to the combination of the pigment color and usage amount and other pigment color so that various colors of the surface layer 10 can be produced.

The backside layer 20 is formed by mixing the natural adhesive mixture with at least one of charcoal, loess, or vermiculite powder. At this time, the char, loess, or vermiculite powder is preferably pulverized into 200 to 400 mesh particles.

The char is preferably charcoal charcoal baked at a high temperature of 1,000 ° C or more. The charcoal is excellent in the air purification function due to the effect of dehumidification, maintenance, ventilation, adsorption, etc., and emits far infrared rays and anions, do.

The loess is an eco-friendly material, composed of calcium carbonate, silica, iron oxide, lime, alumina and the like. It emits far infrared rays to promote blood flow and perspiration. It releases waste materials and heavy metals and activates human cells give.

In addition, the loess is excellent in antimicrobial and insecticidal effect. It prevents the growth of fungi, and dehumidifying effect to remove moisture. It also emits anions to purify polluted air, decomposes and removes odor, and keeps air fresh .

Vermiculite is a mineral which has a property of expanding its volume when it is heated to about 1,000 ° C. and is very light in weight and excellent in heat insulation and heat insulation effect. In addition, it is made of porous material, and it is excellent not only in air purification and deodorization effect but also in sound absorption and sound insulation effect and humidity control effect.

The first mesh reinforcing member 30 and the second mesh reinforcing member 35 may be mesh-type gauze fabrics, and may have a thickness of 0.1 to 0.3 mm.

The first mesh reinforcing member 30 and the second mesh reinforcing member 35 are respectively pressed into the surface layer 10 and the back surface of the backing layer 20 to prevent cracking of the building interior material 1, Improves strength. Further, it is possible to use air tacks and nails when constructing the building interior material (1), and when the adhesive such as grassing paste is used, the second mesh reinforcement material (35) .

FIG. 3 is a photograph showing a depression pattern formed on the surface of a building interior material using the natural material of the present invention.

As shown in Fig. 3, the surface layer 10 has a depression on the surface thereof.

The building interior material formed with the concave surface is more flexible than the building interior material formed by the convexity, and it is useful for the cost reduction because it is possible to construct the new construction without detaching it at the time of construction. In addition, such concave indentations are expressed by embossing, and can be produced in a luxurious manner.

The surface of the interior surface layer (1) is further provided with a coating layer comprising vegetable starch, alum and sun salt. The surface of the building interior material 1 provided with the coating layer is further improved in strength and prevents fine foreign substances such as dust from being deposited.

Next, a manufacturing method of the building interior material 1 using the natural material according to the present invention will be described.

First, (a) water is mixed with a mixture of vegetable starch, alum and mannitol, and the mixture is heated and stirred to prepare a natural adhesive in a gellable state.

The gluing agent in the enriched state increases the bonding force between the powder material particles and the adhesive strength of the mesh reinforcing material, and improves the flexibility and cuttability of the interior material for building 1 and ensures a constant strength.

As described above, it is preferable that the vegetable starch, alum, and sun-salt are mixed at a ratio of 25 to 60, 25 to 60, and 10 to 25 wt%, and the starch is mixed at 25 to 60 wt% 100 to 40 parts by weight of water and 10 to 25 parts by weight of a salt of natural sunlight are mixed with 400 to 750 parts by weight of water, followed by heating and stirring to prepare a natural adhesive in a gellable state.

In order to prepare a natural adhesive in a glaze state using the vegetable starch, a gelatinization temperature of 62 to 75 ° C or more is required, and it is preferable to mix at 95 to 100 ° C.

(b) mixing the natural adhesive with a mixture of kaolin or ceriseite powder of white series and a natural inorganic pigment to prepare a first mixture.

The mixture of the kaolin or ceriseite powder and the natural inorganic pigment is mixed with the natural adhesive at a ratio of 1: 1 to 1.5: 1, and the kaolin or cerousite powder is preferably pulverized to 200 to 400 mesh.

Further, the natural adhesive is mixed and agitated with at least one of charcoal, loess, or vermiculite powder to prepare a second mixture.

At least one of the above-mentioned charcoal, loess, or vermiculite powder is mixed with the natural adhesive at a ratio of 1: 1 to 1.5: 1, and the char, loess, or vermiculite powder is also pulverized to 200 to 400 mesh.

The preparation of the first mixture and the preparation of the second mixture are not prioritized because the mixture to be prepared first does not affect the present invention.

(c) applying the first mixture to an upper surface of a forming die 50 having an embossing sheet 40 on which an embossed convex pattern is formed, and attaching a first mesh reinforcing material 30 to the upper surface of the first mixture Followed by roller pressing and semi-drying to form a semi-dry surface layer 10.

The embossing sheet 40 is an interior sheet formed by extruding various embossed patterns on a surface thereof through an embossing roll so as to be displayed in the form of a convex pattern or a concave pattern. The embossing sheet 40 may be embossed or engraved. However, in the present invention, the embossing sheet 40 having embossed embossments formed thereon is used as the embossing sheet 40, The concave of the engraved was formed.

This is because the construction interior material (1), in which a relief is formed on the surface of the building interior material (1), is more flexible than the interior material of the interior decoration material (1) It is possible to save money.

Further, the embossing sheet 40 can be manufactured at low cost by using a synthetic resin such as polyvinyl chloride (PVC), polypropylene (PP), and rubber.

The film-like water repellent agent may be applied to the upper surface of the embossing sheet 40 before the first mixture is applied to the upper surface of the forming die 50 to which the embossing sheet 40 is attached. The coating type water repellent agent is any one selected from the group consisting of an acrylic resin, a polyurethane resin, a fluoropolymer, and a silicone-acrylic resin.

(d) The second mixture is coated on the back surface of the semi-dry surface layer 10 and semi-dried to form the semi-dry back layer 20.

Then, the second mesh reinforcing material 35 is laminated on the back surface of the backside layer 20 and compressed.

Since the second mesh reinforcing material 35 is laminated on the back surface of the semi-dried back layer 20, the second mixture of the back surface layer 20 enters between the mesh reinforcing materials by roller pressing, It becomes integrated.

(e) After the interior material 1 composed of the surface layer 10 and the back layer 20 is completely dried, (f) the dried building interior material 1 is separated from the molding frame 50.

The surface of the interior surface layer 10 separated from the forming mold 50 is coated with a coating agent which is mixed with vegetable starch, alum and sun salt and heated and stirred to improve the strength of the surface of the interior material for building 1, Prevent smudges and molds, harmful bacteria and pests from hiding.

The coating agent is prepared by mixing 3 to 8 parts by weight of vegetable starch, 3 to 10 parts by weight of alum, and 1 to 5 parts by weight of salt of the sunflower with respect to 100 parts by weight of water, followed by heating and stirring.

If the vegetable starch is less than 3 parts by weight, the viscosity is too weak to expect a function as a coating agent. If the vegetable starch is more than 8 parts by weight, the viscosity of the vegetable starch is too strong.

If the alum is less than 3 parts by weight, the function of alum can not be expected. If the alum is 10 parts by weight or more, it is used more than necessary.

If the amount of the silver salt is less than 1 part by weight, the role of preservative is difficult to expect. If the amount is more than 5 parts by weight, the function of the preservative is deteriorated and the dehumidifying effect becomes better.

Hereinafter, the present invention will be described more specifically with reference to Examples. However, it should be understood that the present invention is not limited thereto.

1,100 g of purified water is mixed with a mixture of 100 g of corn starch, 70 g of alum, and 30 g of salt of vegetable starch, and the mixture is heated and stirred to prepare a natural adhesive in a gellable state.

1,000 g of kaolin powder pulverized with 300 mesh and 2 g of charcoal pigment were mixed and uniformly stirred with the natural adhesive agent in the above-mentioned natural state by a mixer / agitator was applied to a forming mold with an embossing sheet 40 A 0.5 mm thick layer is applied on the upper surface of the substrate 50, the surface of the surface layer 10 is formed by drying the semi-dry state using a hot air fan.

1,000 g of the vermiculite powder ground to 200 mesh was prepared, and the second mixture, which was homogeneously stirred with a mixing agitator, was applied on the back surface of the surface layer 10 to a thickness of 1 mm and dried in a semi-dry state Next, a flat surface layer 20 is formed by spreading the flat surface and pressing the roller. Thereafter, it is dried using a hot air blower and then separated from the mold 50.

60 g of potato powder, 60 g of alum, 30 g of salt of sunflower and 1000 g of purified water were mixed on the surface of the building interior material 1 separated from the forming mold 50 and heated and stirred. The coating agent was roll coated and then dried, Thereby manufacturing an interior material 1 using a natural material.

1,000 g of purified water is mixed with a mixture of 100 g of corn starch, 100 g of alum, and 50 g of salt of vegetable starch, followed by heating and stirring to prepare a natural adhesive in a gellable state.

1,000 g of the ceriseite powder pulverized with 300 mesh and 50 g of the loess pigment were mixed and uniformly stirred with the natural adhesive agent in the above-mentioned natural state with a mixing agitator, and the first mixture was subjected to molding with the embossed sheet 40 The top surface of the mold 50 is coated with a thickness of 0.5 mm, the surface of the surface is covered with a roller, and the surface layer 10 is dried in a semi-dry state using hot air.

1,000 g of the loess powder obtained by pulverizing 250 g of the natural adhesive prepared as described above was homogenously stirred with a mixing agitator, and the second mixture was applied on the back surface of the surface layer 10 to a thickness of 1 mm and dried in a semi-dry state Next, a flat surface layer 20 is formed by spreading the flat surface and pressing the roller. Thereafter, it is dried using a hot air blower and then separated from the mold 50.

60 g of potato powder, 60 g of alum, 30 g of salt of sunflower and 1000 g of purified water were mixed on the surface of the building interior material 1 separated from the mold 50, sprayed and coated with the coating agent heated and stirred, To thereby produce a building interior material (1) using natural materials.

2,100 g of purified water was mixed with a mixture of 180 g of corn starch, 160 g of alum, 80 g of sun salt, and the mixture was heated and stirred to prepare a natural adhesive in a gellable state.

1,500 g of the kaolin powder pulverized to 300 mesh and 500 g of the loess pigment were mixed and uniformly stirred with the natural adhesive agent in the above mixed state by a mixing agitator was extruded into a forming mold having an embossing sheet 40 A 0.5 mm thick layer is applied on the upper surface of the substrate 50, the surface of the surface layer 10 is formed by drying the semi-dry state using a hot air fan.

2,000 g of the loess powder obtained by preparing the natural adhesive in the above-described state of luxury and homogenously stirring with a mixing agitator was applied on the back surface of the surface layer 10 to a thickness of 1 mm and dried in a semi-dry state Next, a flat surface layer 20 is formed by spreading the flat surface and pressing the roller. Thereafter, it is dried using a hot air blower and then separated from the mold 50.

60 g of potato powder, 60 g of alum, 30 g of sun salt and 1000 g of purified water were mixed on the surface of the building interior material (1) separated from the mold (50), sprayed and coated with the coating agent heated and stirred, To thereby produce a building interior material (1) using natural materials.

[Comparative Example 1]

1,300 g of purified water is mixed with a mixture of 100 g of corn starch, which is a vegetable starch, and 100 g of alum, and the mixture is heated and stirred to prepare a natural adhesive in a gellable state.

1,000 g of kaolin powder pulverized with 300 mesh and 2 g of charcoal pigment were mixed and uniformly stirred with the natural adhesive agent in the above-mentioned natural state by a mixer / agitator was applied to a forming mold with an embossing sheet 40 A 0.5 mm thick layer is applied on the upper surface of the substrate 50, the surface of the surface layer 10 is formed by drying the semi-dry state using a hot air fan.

1,000 g of the natural adhesive in the enameled state and 1,000 g of the vermiculite powder pulverized into 200 mesh were uniformly stirred with a mixing agitator, and the second mixture was applied on the back surface of the surface layer 10 to a thickness of 1 mm, dried in a semi-dry state, And the rollers are pressed to form a regularly flattened backing layer 20. Thereafter, it is dried using a hot air blower and then separated from the mold 50.

75 g of potato powder, 75 g of alum, and 1000 g of purified water were mixed on the surface of the building interior material (1) separated from the molding mold (50) and heated and agitated. The coating material was roll coated and cut into a size of 60 cm x 250 cm, To thereby produce a building interior material (1).

[Comparative Example 2]

1,500 g of purified water was mixed with a mixture of 140 g of corn starch and 60 g of salt of vegetable starch, and the mixture was heated and stirred to prepare a natural adhesive in a gellable state.

1,000 g of kaolin powder pulverized with 300 mesh and 2 g of charcoal pigment were mixed and uniformly stirred with the natural adhesive agent in the above-mentioned natural state by a mixer / agitator was applied to a forming mold with an embossing sheet 40 A 0.5 mm thick layer is applied on the upper surface of the substrate 50, the surface of the surface layer 10 is formed by drying the semi-dry state using a hot air fan.

1,000 g of the natural adhesive in the enameled state and 1,000 g of the vermiculite powder pulverized into 200 mesh were uniformly stirred with a mixing agitator, and the second mixture was applied on the back surface of the surface layer 10 to a thickness of 1 mm, dried in a semi-dry state, And the rollers are pressed to form a regularly flattened backing layer 20. Thereafter, it is dried using a hot air blower and then separated from the mold 50.

100 g of potato starch, 50 g of sodium chloride and 1000 g of purified water were mixed on the surface of the building interior material (1) separated from the molding mold (50), and the coated and heated mixture was rolled and dried to prepare a natural material To thereby produce a building interior material (1).

≪ Antimicrobial activity test according to time & time
(day) Comparative Example 1
(Vegetable starch + alum) Comparative Example 2
(Vegetable starch + sun salt) Examples 1, 2, and 3
(Vegetable starch + alum + solar salt) 0 x x x 2 x x x 4 △ x x 6 △ ◇ x 10 △ ◇ x 20 △ ◇ x 30 △ ◇ x

For the experiment, the experiments of Comparative Example 1 and Comparative Example 2 for Examples 1, 2, and 3 were carried out under the same conditions of a temperature of 25 ° C, a humidity of 90%, and sunlight-blocked growth conditions. .

The mycelia of the molds used in the experiment were mixed with the five most hyphae fungal hyphae distributed in the house.

As can be seen from Table 1, in the interior material for construction (1) of Comparative Example 1 in which only vegetable starch and alum was mixed, a fluffy fungus occurred with Alternaria from the 4th day, and only vegetable starch and sun salt were mixed In the building interior material (1) of Comparative Example 2, black fungi with Cladosporium occurred from the 5th day.

However, in the building interior material (1) using the natural adhesives of Examples 1, 2 and 3 prepared according to the present invention, it was found that no fungus was formed even after 30 days. Therefore, it was confirmed that the antibacterial activity was better when the alum and the sun salt were mixed together than when the alum or the salt was independently used.

1: Interior material 10: Surface layer
20: backside layer 30: first mesh reinforcement
35: second mesh reinforcement 40: embossing sheet
50: Molding frame

Claims (12)

A surface layer 10;
A first mesh reinforcement 30 disposed inside the surface layer 10;
A back layer 20 laminated on the back surface layer 10; And
And a second mesh reinforcing material (35) laminated on the rear surface of the back layer (20)
The surface layer (10) and the back layer (20) each include a natural adhesive,
Wherein the natural adhesive is a mixture of vegetable starch, alum, and sun salt.
The method according to claim 1,
Wherein the surface layer (10) is formed by mixing the natural adhesive with a mixture of white kaolin or ceriseite powder and a natural inorganic pigment.
The method according to claim 1,
Wherein the backside layer (20) is formed by mixing the natural adhesive with at least one powder of charcoal, loess, or vermiculite powder.
The method according to claim 1,
Wherein the first mesh reinforcement material (30) and the second mesh reinforcement material (35) are a surface or a flake.
The method according to claim 1,
Wherein a surface of the surface layer (10) is formed with an engraved pattern on the surface thereof.
The method according to claim 1,
Wherein the natural adhesive is a mixture of 25 to 60% by weight of vegetable starch, 25 to 60% by weight of alum, and 10 to 25% by weight of salt of sunflower.
The method according to claim 1,
Wherein the surface layer (10) further comprises a coating layer comprising vegetable starch, alum, and sun-salt.
A method for manufacturing a building interior material (1) using a natural material,
(a) mixing water with a mixture of vegetable starch, alum, and sun-salt, and then heating and stirring to prepare a natural adhesive in a glaze state;
(b) mixing the natural adhesive with a mixture of kaolin or ceriseite powder of a white series and a natural inorganic pigment to prepare a first mixture, and mixing the mixture with at least one of charcoal, loess or vermiculite powder Mixing and agitating the natural adhesive to prepare a second mixture;
(c) applying the first mixture to the upper surface of a mold frame 50 having an embossing sheet 40 on which an embossed pattern is formed, the first mesh reinforcing material 30 being laminated on the upper surface of the first mixture Pressing and semi-drying to form a semi-dry surface layer 10;
(d) a second mixture is applied to the back surface of the semi-dry surface layer 10 and then semi-dried to form a semi-dry back layer 20, and a second mesh reinforcing material 35) are laminated and pressed;
(e) completely drying the building interior material (1) comprising the surface layer (10) and the backside layer (20); And
(f) separating the dried building interior material (1) from the mold (50); The method of manufacturing a building interior material using a natural material according to claim 1,
9. The method of claim 8,
In the step (a), 400 to 750 parts by weight of water are mixed with 100 parts by weight of a natural adhesive mixture of 25 to 60% by weight of starch, 25 to 60% by weight of alum, and 10 to 25% A method for manufacturing a building interior material using natural materials.
9. The method of claim 8,
Wherein the embossing sheet (40) is coated with a water-repellent film-like water repellent agent before the step (c).
9. The method of claim 8,
After step (f), the surface of the surface layer (10) is coated with a coating agent mixed with vegetable starch, alum, and sun salt, and heated and stirred.
12. The method of claim 11,
Wherein the coating agent is prepared by mixing 3 to 8 parts by weight of vegetable starch, 3 to 10 parts by weight of alum, and 1 to 5 parts by weight of a salt of the sunflower with respect to 100 parts by weight of water, and heating and stirring the mixture.

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