KR101178893B1 - Antibiotic panel comprising the powder of lacquer tree extract - Google Patents

Abstract

PURPOSE: A functional panel containing lacquer and a method for manufacturing the same are provided to improve sterilizing effect and to suppress the generation of volatile organic compounds by adding the powder of a lacquer tree extract to wood panels. CONSTITUTION: A functional panel is composed of a sterilizing panel containing a lacquer extract and a coating layer. The coating layer includes one or more powder selected from yellow soil powder, charcoal powder, and jade powder, an anion emitting mineral, and water soluble paint. The lacquer extract is lacquer extracted liquid and the powder of a lacquer extract. A method for manufacturing the functional panel includes the following: lacquer tree is cut(S101); lacquer components are extracted from the cut lacquer tree based on water or an organic solvent(S103); the allergic reaction of the lacquer components are alleviated(S105); the lacquer components are powderized(S107); and the powderized lacquer components are added into a sterilizing panel manufacturing process(S109).

Description

Functional panel comprising lacquer and manufacturing method thereof {Antibiotic panel comprising the powder of lacquer tree extract}

The present invention relates to a functional panel including a lacquer and a method for manufacturing the same, and more specifically as a lacquer extract to processed wood panels, such as MDF (Medium Density Fiberboard) or particleboard and laminated wood, which are used as materials for furniture and construction materials. The present invention relates to a method for producing a functional panel having a volatile organic compound (VOCs) generation inhibitory effect, an antibacterial effect, and the like, by adding a powder to be produced, and a functional panel manufactured by the method.

Generally, materials such as furniture are mainly used for processing wood or wood such as MDF or particle board, and when manufacturing processed wood panels such as MDF or particle board, small particles are attached to each other using a binder to form a sheet material. Is making.

In addition, it is usually treated by attaching a finishing sheet and decorative sheet to enhance the appearance, protect the panel and prevent deformation.

Such conventional panels are problematic due to the high generation of volatile organic compounds (VOCs) such as formaldehyde.

In addition, when used as a furniture or building materials, there was also a problem that mold easily grows when used in a humid environment.

As an antimicrobial panel to solve this problem, there was a method of using an inorganic paint as described in Korean Patent Registration No. 10-0946841. However, the use of such a method makes the panel heavy due to the inorganic material, and the inorganic paint does not have self-applying power, so that an additional adhesive for applying the inorganic material is required.

Accordingly, it is an object of the present invention to provide a functional panel with low generation of volatile organic compounds and excellent antibacterial effect.

Another object of the present invention is to provide a method for producing a functional panel, in which the panel becomes heavy or does not need a separate adhesive.

The object of the present invention is achieved by a functional panel containing lacquer extract powder.

In addition, an object of the present invention is to extract the lacquer tree with water or an organic solvent, and then, to reduce the allergic reaction, and to dry it to produce a powder, it is added to the panel manufacturing method, characterized in that Is achieved by.

According to the present invention, a functional panel having an antibacterial function and low content of a volatile organic compound can be obtained.

1 is a flow chart showing a method of manufacturing an antimicrobial panel according to an embodiment of the present invention.
Figure 2 is a flow chart showing a method of manufacturing an antimicrobial panel according to another embodiment of the present invention.

The method for producing a functional panel of the present invention is characterized in that the lacquer is extracted with water or an organic solvent, and then treated to reduce the allergic reaction, dried to prepare a powder, and then added at the time of panel production.

When extracting the lacquer tree is extracted using hot water, that is, water as a solvent or using an organic solvent, for example alcohol such as ethanol, or other common extraction solvent such as acetone, hexane.

The raw lacquer used in the present invention may be either Korean, Chinese or Japanese.

Ethanol is less environmentally harmful than other organic solvents and low boiling point is most preferred among the organic solvents, environmentally and economically advantageous.

At this time, if the mixing ratio of the lacquer and the extraction solvent is less than 1: 0.5, the extraction solvent does not sufficiently dissolve urushiol extracted from the lacquer, and if the mixing ratio of the lacquer and the solvent exceeds 1: 2, the extraction is good, When evaporation of ethanol and water by distillation requires a lot of time required for evaporation and increases the cost, so the mixing ratio of lacquer and ethanol is preferably 1: 0.5 to 2.

Instead of using too much solvent, the extraction is carried out with constant reflux of the solvent.

Since the extract of the sumac contains allergenic ingredients, when used as it is, it is easy to cause allergies in some cases when it comes into contact with the skin. Therefore, once extracted, allergy is removed by various methods such as radiation, ultraviolet light treatment, heating pressurization, steaming, etc. to remove allergens. The simplest and most desirable of these is the simple and economical UV treatment. Especially, the ultraviolet-ray of the short wavelength band below 280 nm is effective.

After allergens are removed through the detoxification method, it is dried and pulverized to prepare a powder and mixed when preparing processed wood such as MDF or particle board.

At this time, the lacquer extract extracted through the above-described process is made of a lacquer extract or a dry powder form of the lacquer extract, when the above-mentioned lacquer extract is applied to the panel in the form of lacquer extract on the surface of 100 parts by weight of wood included in the panel It is preferable to apply 5 to 10 parts by weight, and when applied to the panel in the form of a dry powder of lacquer extract is applied by mixing the lacquer extract powder on wood chips, the mixing amount is 0.1 to 10 parts by weight based on 100 parts by weight of wood Preference is given to mixing in amounts.

If it is mixed in an amount less than that sufficient antimicrobial effect can not be obtained, if it is mixed in an amount greater than the increase in the antimicrobial effect of the increase in the amount of addition does not appear anymore, but the amount of the binder to be added increases.

The lacquer extract powder and the binder are mixed and then compressed in a heated state to prepare a particle board or MDF.

Particle boards or MDFs manufactured in this way are mainly used for furniture and architectural interior materials.

In addition, a coating layer may be further formed on the surface of the particle board or the MDF manufactured by the above-described process, wherein the coating layer is formed of one or more powders 30 to 100 parts by weight of aqueous paint, selected from the group consisting of ocher powder, charcoal powder and jade powder. 40 parts by weight and 20 to 25 parts by weight of anion emitting minerals.

At this time, the anion-emitting mineral is preferably made of one or more selected from the group consisting of tourmaline, rare earth and mothite.

Formation of the coating layer transfers the particle board or MDF made of wood chips mixed with the lacquer extract powder to the lower portion of the coating roller and the rubber roller, and the paint in the above-described coating nozzle unit provided on the coating roller and the rubber roller above It is introduced between a coating roller and a rubber roller.

Here, the outer circumferential surface of the coating roller is provided with a mesh roller is formed to suck the composition for forming the coating layer into the groove described above, the outer circumferential surface of the above-mentioned rubber roller and the outer surface of the mesh roller and the particle board or MDF It is rotated in contact with the upper surface of the same time.

The upper part of the coating roller provided with the rubber roller and the mesh roller is provided with a paint nozzle unit for introducing a composition for forming a coating layer between the above-described rubber roller and the coating roller provided with the mesh roller. Or on the upper surface of the MDF.

The coating layer formed through the above process is dried using a blower fan that emits air heated by a hot wire.

At this time, the ocher powder uses an average particle diameter of approximately 200 to 400 mesh, the smaller the average particle diameter of the ocher powder is better, but when added to a particle diameter of more than 400 mesh, the oil absorption increases, the storage stability of the paint is poor, 200 If a powder of less than mesh is added, the surface of the coating layer becomes rough after drying, which is not suitable for interior use and precipitation occurs during storage.

At this time, the aqueous paint contained in the coating layer can be used as long as it is an aqueous paint that does not emit volatile organic compounds, and serves as a binder for binding the ocher powder, char powder and jade powder and anion emitting mineral. .

In addition, the method for producing an antimicrobial panel according to the present invention is a cutting step (S101) for cutting the lacquer tree, extracting the lacquer component extracting the lacquer component contained in the cut lacquer tree through the aforementioned cutting step (S101) with water or an organic solvent. Step (S103), the allergic reaction reduction treatment step (S105) to reduce the allergic reaction of the lacquer component extracted through the above-described lacquer component extraction step (S103), the allergic component through the aforementioned allergic reaction reduction treatment step (S105) It consists of a powdering step (S107) of drying to prepare a powder and the addition step (S109) of adding the lacquer component prepared through the above-mentioned powdering step (S107) during the production of the antimicrobial panel.

In addition, the method for producing an antimicrobial panel according to the present invention is a cutting step (S101) for cutting the lacquer tree, extracting the lacquer component extracting the lacquer component contained in the cut lacquer tree through the aforementioned cutting step (S101) with water or an organic solvent. Step (S103), the allergic reaction reduction treatment step (S105) to reduce the allergic reaction of the lacquer component extracted through the above-described lacquer component extraction step (S103), the allergic component through the aforementioned allergic reaction reduction treatment step (S105) The dilution step (S107-1) for diluting and the spraying step (S109-1) for spraying the lacquer diluent prepared through the dilution step (S107-1) described above to the surface of the panel.

At this time, the above-mentioned organic solvent is preferably water or ethanol, and the allergic reaction reduction step (S105) is preferably made through heating, pressurization, radiation or ultraviolet irradiation.

In addition, the aforementioned dilution step (S107-1) is preferably made by mixing 200 to 500 parts by weight of an organic solvent to 100 parts by weight of the lacquer component passed through the allergic reaction reduction treatment step (S105) described above, in which case, it is used for dilution. It is preferable that the organic solvent used consists of ethanol or methanol.

When the lacquer component diluted through the above dilution step (S107-1) is sprayed onto the panel through the nozzle in the above-described spraying step (S109-1), the entrance of the injection nozzle is prevented from being blocked due to the viscosity of the lacquer component. The organic solvent component contained in the lacquer diluent sprayed onto the surface of the panel is volatilized and removed.

The coating layer may be further formed on the surface of the MDF or particle board containing the lacquer component through the two methods described above, and the description of the coating layer is the same as that of the coating layer.

Hereinafter, the configuration of the present invention will be described in detail through the embodiment.

Production Example 1

25 kg of sumac was finely chopped, pulverized, mixed with 25 kg of ethanol, stirred for 10 minutes or more, and heated at reflux for 5 hours. An ultraviolet lamp was installed at the top of the reactor to emit ultraviolet light at around 280 nm and irradiated with ultraviolet light for 3 hours. The obtained extract was filtered, heated under reduced pressure, concentrated and dried to obtain 1.5 kg as an extract. The reaction was completed in the ball mill to grind to prepare a powder.

Example 1 Detection of Allergens

The extract of Example 1 was investigated for the presence of allergens. The content of urushiol, known as allergen, was analyzed by gas chromatography by the urushiol assay described in the Food Code. The content of urushiol (ppm) in the extract was not detected.

Example 2 Antibacterial Test

5 g of lacquer extract powder prepared in Example 1 was mixed with 5 kg of wood chips, and then 250 g of adhesive was mixed for 10 minutes and pressed at 160 degrees for 4 minutes to prepare a panel having a size of 25 × 25 × 1 cm. The prepared panel was cut into 40 × 40 × 10 mm size, pulverized and used in powder form. 4 g of the prepared sample was placed in a 300 ml Erlenmeyer flask, sterilized, and 1 ml of diluted bacterial culture solution and 99 ml of phosphate buffer (pH 7.0) were added thereto, followed by shaking culture (120 rpm) at 37 ° C for 24 hours. After 24 hours, the bacterial counts were counted, and the rate of bacterial reduction was calculated by comparing with the initial bacterial count. Test strains were Escherichia coli, Staphylococcus aureus ATCC 6538, Pneumonia (Klebsiella pneumoniae ATCC 4352), Salmonella (Salmonella typhimurium ACCM 11862) and fungi (Candida albicans ATCC 10231). In all five strains, the rate of reduction was 99.8%, which was 99.8%.

Example 3 Antibacterial Test

50 g of lacquer extract powder prepared in Example 1 was mixed with 5 kg of wood chips, and then 250 g of adhesive was mixed for 10 minutes and pressed at 160 degrees for 4 minutes to prepare a panel having a size of 25 × 25 × 1 cm. The prepared panel was cut into 40 × 40 × 10 mm size, pulverized and used in powder form. The antimicrobial test was carried out by the method of Example 2 to obtain an antimicrobial effect of 99.8% on average.

Example 4 Antibacterial Test

100 g of lacquer extract powder prepared in Example 1 was mixed with 5 kg of wood chips, and then 250 g of adhesive was mixed for 10 minutes and pressed at 160 degrees for 4 minutes to prepare a panel having a size of 25 × 25 × 1 cm. The prepared panel was cut into 40 × 40 × 10 mm size, pulverized and used in powder form. The antimicrobial test was carried out by the method of Example 2 to obtain an antimicrobial effect of 99.9% on average.

Example 5 Antibacterial Test

200 g of lacquer extract powder prepared in Example 1 was mixed with 5 kg of wood chips, and then 250 g of adhesive was mixed for 10 minutes and pressed at 160 degrees for 4 minutes to prepare a panel having a size of 25 × 25 × 1 cm. The prepared panel was cut into 40 × 40 × 10 mm size, pulverized and used in powder form. The antimicrobial test was carried out by the method of Example 2 to obtain an antimicrobial effect of 99.9% on average.

Example 6 Antibacterial Test

500 g of lacquer extract powder prepared in Example 1 was mixed with 5 kg of wood chips, and then 250 g of adhesive was mixed for 10 minutes and pressed at 160 degrees for 4 minutes to prepare a panel having a size of 25 × 25 × 1 cm. The prepared panel was cut into 40 × 40 × 10 mm size, pulverized and used in powder form. The antimicrobial test was carried out by the method of Example 2 to obtain an antimicrobial effect of 99.9% on average.

Example 7 Antifungal Test

250 g of lacquer extract powder prepared in Example 1 was mixed with 5 kg of wood chips, and then 250 g of adhesive was mixed for 10 minutes and pressed at 160 degrees for 4 minutes to prepare a panel having a size of 25 × 25 × 1 cm. The prepared panel was cut to a size of 40 × 40 × 10 mm to prepare a specimen.

The antifungal effect on the panel of the present invention was tested by the method of ASTM G-21 (American Standard-Mold Mixture Strain Test). No fungal growth was observed after 4 weeks.

Example 8 Formaldehyde Content Determination

250 g of lacquer extract powder prepared in Example 1 was mixed with 5 kg of wood chips, and then 250 g of adhesive was mixed for 10 minutes and pressed at 160 degrees for 4 minutes to prepare a panel having a size of 25 × 25 × 1 cm. Formaldehyde content contained in the specimens was measured to meet the environmental standards of less than 10 ppm.

Example 9 Coating Layer Formation

Applying a mixture of 100 parts by weight of aqueous paint, 15 parts by weight of ocher powder, 10 parts by weight of jade powder and 10 parts by weight of charcoal powder and 23 parts by weight of anion emitting minerals (tourmaline) on the surface of the panel prepared in Example 8 It was dried using a blowing fan that exhales the air to prepare a panel having a coating layer.

The anion emission of the panel prepared through Example 9 was measured and shown in Table 1 below.

(However, the amount of negative ions released was a square column chamber having a diameter of 50 mm and a height of 300 mm, and tested using a charged particle measuring device at a temperature of 25 ° C., a relative humidity of 50% RH, and an anion number of 42 / cc in the air. .)

TABLE 1

As shown in Table 1 above it can be seen that the panel produced through Example 9 of the present invention is excellent in the amount of anion released.

S101; Cutting stage
S103; Lacquer Extraction Step
S105; Allergic Reduction Process
S107; Powdering stage
S107-1; Dilution step
S109; Addition step
S109-1; Spraying stage

Claims (12)

It is made by forming a coating layer on the surface of the antimicrobial panel containing the lacquer extract,
The coating layer is an antimicrobial panel, characterized in that it comprises 30 to 40 parts by weight of at least one powder selected from the group consisting of ocher powder, charcoal powder and jade powder and 20 to 25 parts by weight of anion emitting mineral in 100 parts by weight of an aqueous paint.
The method according to claim 1,
The lacquer extract is an antibacterial panel, characterized in that the dry powder of the lacquer extract or lacquer extract.
The method according to claim 2,
The lacquer extract is antimicrobial panel, characterized in that applied to 5 to 10 parts by weight per 100 parts by weight of the wood included in the panel.
The antimicrobial panel according to claim 2, wherein the dry powder of the lacquer extract is included in an amount of 0.1 to 10 parts by weight based on 100 parts by weight of wood included in the panel.
delete delete The antimicrobial panel according to claim 1, wherein the anion-emitting mineral comprises at least one selected from the group consisting of tourmaline, rare earth, and mothite.
Cutting step of cutting the sumac;
A lacquer extracting step of extracting a lacquer component contained in the lacquer tree cut through the cutting step with water or an organic solvent;
An allergic reaction reduction treatment step of reducing an allergic reaction of the lacquer component extracted through the lacquer extraction step;
A powdering step of drying the lacquer component which has undergone the allergic reaction reducing treatment step to produce a powder; And
Method for producing an antimicrobial panel comprising a; lacquer adding step of adding the lacquer component prepared by the powdering step at the time of manufacturing the antimicrobial panel.
Cutting step of cutting the sumac;
A lacquer extracting step of extracting a lacquer component contained in the lacquer tree cut through the cutting step with water or an organic solvent;
An allergic reaction reduction treatment step of reducing an allergic reaction of the lacquer component extracted through the lacquer extraction step;
A dilution step of diluting the lacquer component that has undergone the allergic reaction reduction treatment step; And
Spraying step of spraying the lacquer diluent prepared by the dilution step on the surface of the panel; Method of producing an antimicrobial panel characterized in that consisting of.
The method for producing an antimicrobial panel according to claim 8 or 9, wherein the organic solvent is alcohol, acetone or hexane.
The method of claim 8 or 9, wherein the allergic reaction reduction step is heating, pressurization, irradiation or ultraviolet irradiation.
The method of claim 9, wherein the dilution step comprises mixing 200 to 500 parts by weight of an organic solvent to 100 parts by weight of the lacquer component subjected to the allergic reaction reduction treatment step.

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