KR101614502B1 - Hazardous materials of wood panels using a closed-shell oysters reduction methods and wood panel manufacturing method - Google Patents

Abstract

The present invention relates to a method for reducing hazardous components in wood panels using waste oyster shells, and a manufacturing method for the wood panels. The present invention comprises the following: (a) a washing step in which oyster shells are washed to remove salt and contaminants contained therein; (b) a preliminary treatment step in which the washed oyster shells are pulverized to a predetermined size and calcined in order to be mixed with natural zeolite; (c) a base material preparation step in which, after step (b), the oyster shells and finely powdered zeolite are each mixed with distilled water to produce an antimicrobial base material; (d) an antimicrobial agent preparation step in which the antimicrobial base material prepared in step (c) is mixed with a liquid emulsion as a bonding agent, a dispersing agent, a thickening agent, and water in a predetermined ratio and formulated to produce an antimicrobial agent; and (e) a step in which the antimicrobial agent is mixed with either a water-soluble paint base or an adhesive base in a predetermined ratio to produce paint or an adhesive, respectively.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a method for reducing harmful substances in wood panels using oyster closure,

The present invention relates to a method for reducing toxic substances in wood panels using oyster horns and a method for manufacturing wood panels. More specifically, oyster shells and natural zeolites, which are oyster shells, are used to reduce volatile organic compounds emitted from building materials and household furniture, thereby improving the indoor environment and dehumidifying action, The present invention relates to a method for reducing toxic substances in wood panels and a method for manufacturing wood panels using oyster horns enabling life.

Generally, living furniture used in a home or office, such as a dresser, a living room, a bed, a drawer, etc., is mainly made of a wood, but the furniture produced by processing the wood usually shortens the life of the furniture by microorganism decomposition There is a risk that the surface of the furniture will be painted after it is made in the form of furniture.

In recent years, for the sake of environmental protection, cutting is regulated so that it has better processability than wood, has a smooth surface, has a homogeneous and dense internal structure, and has excellent mechanical precision (accuracy) (MDF) and particle board (PB), which are widely used for general furniture, musical instrument, office furniture and electronic case, floor board and interior decoration.

However, since the synthetic wood comprises the wood as a main component, it is inevitable to use various chemical adhesives such as thermosetting adhesives in order to firmly fix the fibers, despite the advantage of being environmentally friendly and having excellent processing characteristics. There is a serious problem that volatile organic compounds (VOC) are released.

Among the volatile organic compounds emitted from households using chemical adhesives, formaldehyde has recently become a major cause of Sick House Syndrome (SHS) and Chemical Sensitivity (MCS) And it is evident that it has a serious influence on the nervous system and organs. Since it is continuously discharged from the interior materials or furniture used in the construction of the building in places such as houses, buildings, schools and the like of various residential types including apartments, There is a high risk of occupants or residents suffering from red spot, rhinitis, atopic dermatitis, urticaria, asthma, severe headache, bronchitis, and the like.

Nonetheless, the synthetic wood has inevitably made use of adhesives, as well as a variety of changes in appearance and features to create a furniture that meets the needs of the user.

However, the synthetic wood furniture can be produced in accordance with practicality and interior atmosphere by changing function and appearance. However, these synthetic wood furniture can be used as a coating material containing various chemical agents on the surface, Sheet lamination, lamination of shape, polyester resin coating, LPM (Low Pressure Melamine) lamination which is impregnated with melanin resin several times, UV coating or lacquer coating on laminated surface, And the like are uniformly coated and painted with a resin having durability, abrasion resistance and stain resistance, so that it has a problem that not only the abrasion occurs, but also the smell caused by fungi and germs reproduction, as well as the human body.

Recently, as interest in health has increased, we are looking for a healthy life with beauty of furniture addition and design ranging from bed, closet, desk, chair as well as furniture such as kitchen table, , And furniture made using environmentally friendly natural materials was in the limelight.

However, the eco-friendly natural material is soft on the outer surface and is easily damaged by scratches and the like and has a weak durability. The charcoal and loess are weak in water and easily broken or cracked.

In addition, since the eco-friendly natural material is formed into a plate shape, it is used by attaching or inserting it on the surface of furniture, or by filling a lot of material into other materials or by applying a large amount of the mixture to the surface of synthetic wood furniture. The consumption of natural materials is high, which causes the price of furniture to rise.

Korean Patent No. 10-0706302

Korean Patent No. 10-1409242

In order to solve such problems, the present invention relates to a method for producing a zeolite membrane, which comprises using an oyster shell and natural zeolite, which are oyster shells, to produce a medium density fiberboard (MDF) or particle board (PB), a building material made of synthetic wood or wood, There is provided a method for reducing toxic substances in wood panels and a method for manufacturing wood panels using an oyster horn for reducing the number of organic compounds to improve indoor environment and dehumidifying action so as to reduce bacterial propagation and enable hygienic living. There is a purpose.

In order to achieve the above-mentioned object, the present invention provides a method for cleaning an oyster shell, comprising the steps of: (a) cleaning oyster shells to remove salt and contaminants contained in the oyster shell; (b) an oyster hull pre-treatment step in which crushing and firing of the oyster shell are performed in order to crush the oyster closure which has been cleaned to a predetermined size and mix with the natural zeolite; (c) a step of preparing a raw material for the antimicrobial agent by mixing the oyster shell and the zeolite in the form of fine powder, respectively, with the distilled water; (d) preparing an antimicrobial agent to produce an antimicrobial agent by mixing and mixing a raw material of the antimicrobial agent produced by the step (c) and a liquid emulsion, a dispersing agent, a thickener and water with a binder in a predetermined ratio; And (e) mixing the antimicrobial agent, the water-soluble paint or the adhesive in a predetermined ratio to prepare a coating agent or an adhesive agent, respectively.

(A1) washing the surface of the oyster shell by injecting the oyster horns into the washing tank, and then spraying the washing water at a high pressure using the spray nozzle; (a2) And drying the closure to remove water remaining on the surface.

The step (b) comprises the steps of: (b1) crushing the oyster hull having been washed to a size of 0.1 mm to 0.07 mm; and (b2) pulverizing the oyster shell crushed by the step (b1) Lt; 0 > C for 100 to 150 minutes.

The step (c) includes the steps of: (c1) crushing raw oyster and zeolite individually with a size of 1 to 10 nm through a crusher; and (c2) crushing the crushed oyster hull and zeolite with zeolite And liquefying the raw materials by mixing them with distilled water, respectively.

The antimicrobial agent in step (d) may contain 15 to 25% by weight of the oyster shell of liquid oyster, 10 to 15% by weight of natural zeolite, 20 to 35% by weight of emulsion, 1 to 5% To 5% by weight, and the remainder.

Also, the zeolite is characterized by using either powder form pulverized to a size of 1 to 10 nm or liquefied form by the raw material production step.

The step (e) further comprises a step of preparing a coating agent by mixing the antimicrobial agent and a water-soluble paint coating material in a ratio of 20% by weight based on the total weight of the water-soluble paint coating material .

In addition, the step (e) may further comprise an adhesive manufacturing step of mixing the antibacterial agent and an adhesive paint such as a bond, in an amount of 20% by weight based on the total weight of the adhesive paint to produce an adhesive .

The present invention also provides a method for producing a wood panel using an oyster shell and zeolite and an antimicrobial agent prepared by mixing a liquid emulsion, a dispersing agent, a thickener and water at a predetermined ratio, comprising the steps of: (a) preparing a medium density fiberboard (MDF) PB), a surface polishing step of polishing a surface of a wood panel including synthetic wood or wood; (b) applying a coating agent for forming an antimicrobial layer by coating a coating agent mixed with an antimicrobial agent and a water-soluble paint on the surface of the wood panel after the step (a); And (c) a drying step of drying the antibacterial layer absorbed on the wood panel for a predetermined time after the step (b) is completed.

The present invention also provides a method for producing a wood panel using an oyster shell and zeolite and an antimicrobial agent prepared by mixing a liquid emulsion, a dispersing agent, a thickener and water at a predetermined ratio, comprising the steps of: (a) preparing a medium density fiberboard (MDF) PB), a surface polishing step of polishing a surface of a wood panel including synthetic wood or wood; (b) an adhesive applying step of applying an adhesive mixed with an antimicrobial agent and a bond to the surface of the wood panel after the step (a); (c) attaching a finishing material to the outer surface of the wood panel after the step (b); (d) drying the wood panel having the finishing material after the step (c); And (e) a coating step of coating a surface of the wooden panel to which the finishing material is adhered to form a coating layer.

The present invention also provides a method for producing a wood panel using an oyster shell and zeolite and an antimicrobial agent prepared by mixing a liquid emulsion, a dispersing agent, a thickener and water at a predetermined ratio, comprising the steps of: (a) preparing a medium density fiberboard (MDF) PB), a surface polishing step of polishing a surface of a wood panel including synthetic wood or wood; (b) applying the antibacterial agent to the surface of the wood panel after the step (a); (c) a member drying step of drying the wood panel coated with the antimicrobial agent by natural drying or heat drying; And (d) a step of adhering a finished film made of a transparent material after the step (c).

Therefore, according to the present invention, the use of oyster shells and natural zeolites, which are oyster shells, can reduce the amount of volatile organic compounds emitted from medium-density fiberboard (MDF) or particle board (PB), building materials made of synthetic wood or wood, So that the indoor environment is improved and the dehumidifying action is performed, so that the propagation of the germs is reduced and the hygienic life can be achieved.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a flowchart showing a process for producing an antimicrobial agent for removing harmful substances from a wood panel using oyster shells according to a preferred embodiment of the present invention;
FIGS. 2 to 4 are flowcharts illustrating a process of manufacturing a wood panel using a oyster cut-off angle using an oyster cut angle according to a preferred embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the drawings, the same reference numerals are used to designate the same or similar components throughout the drawings. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

FIG. 1 is a flowchart illustrating a process for producing an antibacterial agent for removing harmful substances from a wood panel using an oyster cut-off angle according to a preferred embodiment of the present invention. FIGS. 2 to 4 are views showing the oyster cutting angle according to a preferred embodiment of the present invention. FIG. 3 is a flowchart showing a manufacturing process of a wood panel using a used oyster horn.

The present invention relates to an oyster shell and a natural zeolite which are composed of micron-sized fine powder phases, and a binder, a liquid emulsion, a dispersant, a thickener and water are mixed and formed at a predetermined ratio, And drying it.

As shown in FIG. 1, the present invention performs an oyster cleansing step for removing salt and contaminants contained in oyster horns to produce an antibacterial agent applied on the surface of a furniture member such as a wood panel (S110)

In step S110, oysters are washed to remove salts and various contaminants formed on the surface of the oysters, and a large amount of oyster horns are introduced into the washing tank. Then, A cleaning step of cleaning the surface of the oyster hysteresis is performed.

Also, the washing process of the oyster shell is completed through the oyster shell drying step in which the washed oyster shell is dried to remove the water remaining on the surface.

At this time, the oyster hull angle drying step is such that the oyster hull angle after the washing is put into the dryer and then evaporated to dryness at 105 ° C for 12 to 24 hours so that the oyster hull does not absorb the washing water.

Thereafter, a pretreatment step of the oyster hull for crushing and calcining oyster shells is performed in order to crush the oyster shells having been washed to a predetermined size and mix them with natural zeolite (S120)

The pretreatment stage (S120) of the oyster waste hood comprises a crushing step of crushing the oyster hull angle of 0.1 mm to 0.07 mm by introducing the oyster hull which has been washed into the crusher, and a calcination step of calcining the crushed oyster shell powder.

In the pulverization step, oyster hulls and a certain amount of distilled water are put into a pulverizer and pulverized at a temperature of 110 ° C. for 2 hours at 1000 to 3000 RPM. At this time, distilled water is added at a rate of 4 wt% Thereby grinding is performed.

The firing step is a step of charging the oyster hull crushed into the firing period and firing at a temperature of 600 to 900 ° C. for 100 to 150 minutes to recover the calcium carbonate (CaCo ₃ ) contained in the oyster shell angle.

In this case, when the oyster hull angle is fired at a temperature exceeding 900 ° C., the recovery efficiency of the calcium carbonate is lowered, and when the oyster hull angle is fired at a temperature lower than 600 ° C., According to the invention, the calcination of the oyster shell is performed at a temperature of at least 600 ° C and at most 900 ° C, preferably at a temperature of 750 ° C.

After completion of the pretreatment of the oyster horn, a raw material preparation step is performed in which an oyster shell and a zeolite in the form of a fine powder are mixed with distilled water to produce an antibacterial raw material (S130)

The raw material preparation step (S130) comprises a raw material crushing step of crushing the oyster shell and the zeolite in the form of fine powder to a nanometer size, and a raw material liquefaction step of liquefying each of the crushed raw materials.

The raw material crushing step is a step of individually crushing oyster hulls and zeolite with a size of 1 to 10 nm through a crusher.

The raw material liquefaction step is a step in which the oyster hull, distilled water, zeolite and distilled water are independently mixed and mixed at a weight ratio of 1: 5 to achieve liquefaction.

Thereafter, an antibacterial agent preparation step is performed in which a raw material that forms liquefaction, a binder and water are mixed at a predetermined ratio, and the antibacterial agent is prepared by heating and stirring (S140)

The antibacterial agent preparation step (S140) is a step of preparing an antimicrobial agent by mixing and mixing oyster shells and zeolite forming liquefaction with emulsifier, dispersant, thickener and water in a liquid emulsion with a binder in a predetermined ratio, 15 to 25% by weight of waste closure, 10 to 15% by weight of natural zeolite, 20 to 35% by weight of an emulsion, 1 to 5% by weight of a dispersing agent and 1 to 5% by weight of a thickener and the balance.

At this time, the zeolite may be used either in powder form pulverized to a size of 1 to 10 nm or in a liquefied form by the raw material preparation step.

As the binder, emulsions, dispersants, thickeners, and water are adjuncts to the present invention, and an efficacy that is recognized in the art is given to the composition of the present invention, and the description of each effect will be omitted.

The emulsion is composed of 20 to 35% by weight of emulsion-type synthetic resin aqueous binder so that the oyster hull angle and natural zeolite are prevented from desorbing from the coating layer to facilitate adhesion to the surface of furniture .

The dispersing agent is constituted by 1 to 5% by weight. The natural zeolite mixed in the emulsion is prevented from precipitating to improve the binding force with the oyster horn, thereby preventing cracks.

The thickener is composed of 1 to 5% by weight so as to control the viscosity of the oyster shell and the emulsion containing the natural zeolite and to maintain the stability and to prevent the decomposition of the powder. The water is mixed with the composition components of the present invention It acts as a medium.

Meanwhile, in the present invention, the antimicrobial agent prepared in the step S140 and the water-soluble paint or the adhesive such as a bond are mixed at a predetermined ratio to prepare a coating agent or an adhesive, and the prepared coating agent or adhesive is applied to a furniture member such as a furniture panel So that antibacterial furniture can be manufactured.

That is, in the present invention, as shown in FIG. 1, the antimicrobial agent prepared in step S140 is mixed with a water-soluble paint, and the water-soluble paint is mixed at a ratio of 20% by weight based on the total weight of the water- Step S152 may be performed.

Further, in the present invention, an adhesive preparation step (S154) for preparing an adhesive by mixing the antimicrobial agent prepared in the step S140 with an adhesive paint such as a bond by mixing at a ratio of 20% by weight based on the total weight of the adhesive paint .

As shown in FIGS. 2 to 4, the present invention can be applied to furniture panels using an antibacterial agent, a coating agent, or an adhesive to produce antibacterial furniture.

FIG. 2 shows a method for producing antimicrobial furniture using a coating agent. The method comprises fabricating a member 100 for furniture such as a medium density fiber board (MDF), a particle board (PB), synthetic wood or wood, , And a member polishing step S210 of polishing the surface of the manufactured panel using a sand paper is performed.

Thereafter, a coating agent (S222) is formed by coating the surface of the polished furniture member with a coating agent mixed with an antibacterial agent and a water-soluble paint, thereby forming an antibacterial layer.

At this time, the antimicrobial layer is preferably coated on the entire surface of the furniture member to a predetermined thickness, and sprayed uniformly by a sprayer, a sprayer or the like which is usually used.

In addition, when the applying agent application step is completed, a drying step (S230) is performed in which the antibacterial layer is absorbed and dried in the furniture member for a predetermined period of time.

Here, it is preferable that the member drying step (S230) is carried out by a natural drying method or a heat drying method, but the present invention is not limited thereto.

In addition, as shown in FIG. 3, in order to manufacture the furniture member of the antibacterial furniture through the adhesive manufactured in the step S154, a member polishing step (S210) of polishing the surface of the furniture member is performed, An adhesive applying step (S224) for applying an adhesive to the surface is performed.

At this time, the adhesive application step (S224) may be performed in the same manner as in the above-described coating agent application step (S222), but is not limited thereto.

When the adhesive application step S224 is completed, a step S226 of attaching a finishing material to the outer surface of the furniture member and a step S230 of drying the furniture member to which the finishing material is attached are performed, So that the furniture can be manufactured.

At this time, when the member drying step (S230) is completed, a coating step may be further performed to coat the surface of the furniture member on the surface of the finish material to form a coating layer.

4, the antibacterial agent prepared by the step S140 is applied to a member for furniture so that the antimicrobial agent is applied to the surface of the furniture member after the step S210, The antibacterial agent application step S320 is performed in the same manner as the antibacterial agent application step S320.

Thereafter, a member drying step (S330) for drying the furniture member coated with the antimicrobial agent by natural drying or a heat drying method is performed to manufacture the member of the antibacterial furniture.

In addition, when the member drying step (S330) is completed, a finishing film adhering step (S340) for adhering a finishing film made of a transparent material is performed to manufacture a furniture member for manufacturing the antimicrobial furniture.

Here, a predetermined adhesive can be formed on the finished film so that the adhesive can be adhered to the surface of the furniture member to which the antibacterial agent is applied.

The present invention is based on the finding that the use of oyster shells and natural zeolites, which are oyster shells, is effective in preventing the formation of formaldehyde, which is a carcinogen released from medium density fiberboard (MDF) or particle board (PB), building materials made of synthetic wood or wood, And volatile organic compounds (VOCs) are reduced to improve the indoor environment, dehumidification action is achieved, and the propagation of hygienic life is possible by reducing the propagation of germs. By using oyster hulls and zeolite, which are natural raw materials, And maximize durability and durability due to liquefaction of the antimicrobial agent.

It will be apparent to those skilled in the art that the terms "include", "comprise", or "have" as used in the foregoing description mean that such a component can be implanted unless specifically stated to the contrary. And all terms including technical and scientific terms are to be understood as being understood to be generally understood by those skilled in the art to which the invention belongs, Have the same meaning.

The foregoing description is merely illustrative of the technical idea of the present invention, and various changes and modifications may be made by those skilled in the art without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are intended to illustrate rather than limit the scope of the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments. The scope of protection of the present invention should be construed according to the following claims, and all technical ideas within the scope of equivalents should be construed as falling within the scope of the present invention.

Claims (11)

(a) an oyster hull washing step for removing salt and contaminants contained in oysters;
(b) an oyster hull pre-treatment step in which crushing and firing of the oyster shell are performed in order to crush the oyster closure which has been cleaned to a predetermined size and mix with the natural zeolite;
(c) a step of preparing a raw material for the antimicrobial agent by mixing the oyster shell and the zeolite in the form of fine powder, respectively, with the distilled water;
(d) 15 to 25% by weight of the liquid oyster hull angle and 10 to 15% by weight of natural zeolite prepared by the step (c), 20 to 35% by weight of emulsion, 1 to 5% % And the remainder to prepare an antimicrobial agent; And
(e) mixing the antimicrobial agent, a water-soluble paint or an adhesive to prepare a coating agent or an adhesive, respectively;
The method for reducing harmful substances in wood panels using oyster horns according to claim 1,
The method according to claim 1,
The step (a)
(a1) washing the surface of the oyster shell by injecting the oyster shells into the washing tank, then spraying the washing water at a high pressure using the spray nozzle,
(a2) drying oyster hull which has been cleaned, drying oyster hull to remove water remaining on the surface
The method for reducing harmful substances in wood panels using oyster horns according to claim 1,
The method according to claim 1,
The step (b)
(b1) a crushing step of crushing the washed oyster hull to a size of 0.1 mm to 0.07 mm,
(b2) calcining the oyster shell crushed by the step (b1) at a temperature of 600 to 900 DEG C for 100 to 150 minutes
The method for reducing harmful substances in wood panels using oyster horns according to claim 1,
The method according to claim 1,
The step (c)
(c1) Crushing the raw material by crushing the oyster hulls and zeolite individually with a size of 1 to 10 nm through a crusher
(c2) After the step (c1), the crushed oyster hull angle and the zeolite are mixed with distilled water to liquefy them,
The method for reducing harmful substances in wood panels using oyster horns according to claim 1,
delete The method according to claim 1,
Wherein the zeolite is one of a powder form pulverized to a size of 1 to 10 nm by the raw material production step or a liquefied form.
The method according to claim 1,
The step (e)
Further comprising a step of preparing a coating agent by mixing the antibacterial agent and the water-soluble paint coating agent in a proportion of 20% by weight based on the total weight of the water-soluble paint coating agent, to thereby reduce the harmful substances in the wood panel Way.
The method according to claim 1,
The step (e)
Further comprising the step of mixing an antimicrobial agent and an adhesive paint such as a bonding agent in an amount of 20% by weight based on the total weight of the adhesive paint to produce an adhesive. Abatement method.
A mixture of 15 to 25% by weight of oyster horns and 10 to 15% by weight of natural zeolite, 20 to 35% by weight of an emulsion, 1 to 5% by weight of a dispersing agent and 1 to 5% by weight of a thickener, A method of manufacturing a wood panel using an antimicrobial agent,
(a) a surface polishing step of polishing a surface of a wood panel comprising a density fiberboard (MDF) or particle board (PB), synthetic wood or wood;
(b) applying a coating agent for forming an antimicrobial layer by coating a coating agent mixed with an antimicrobial agent and a water-soluble paint on the surface of the wood panel after the step (a); And
(c) when the step (b) is completed, drying the member by drying the antibacterial layer absorbed on the wood panel for a predetermined time
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A mixture of 15 to 25% by weight of oyster horns and 10 to 15% by weight of natural zeolite, 20 to 35% by weight of an emulsion, 1 to 5% by weight of a dispersing agent and 1 to 5% by weight of a thickener, A method of manufacturing a wood panel using an antimicrobial agent,
(a) a surface polishing step of polishing a surface of a furniture member comprising a dense fiberboard (MDF) or a particle board (PB), synthetic wood or wood;
(b) an adhesive applying step of applying an adhesive mixed with an antibacterial agent and a bond to the surface of the furniture member after the step (a);
(c) attaching a finish material to the outer surface of the furniture member after the step (b);
(d) a drying step of drying the furniture member with the finishing material after the step (c); And
(e) a coating step of coating the surface of the furniture member with the finish material to form a coating layer
≪ / RTI >
A mixture of 15 to 25% by weight of oyster horns and 10 to 15% by weight of natural zeolite, 20 to 35% by weight of an emulsion, 1 to 5% by weight of a dispersing agent and 1 to 5% by weight of a thickener, A method of manufacturing a wood panel using an antimicrobial agent,
(a) a surface polishing step of polishing a surface of a furniture member comprising a dense fiberboard (MDF) or a particle board (PB), synthetic wood or wood;
(b) applying the antibacterial agent to the surface of the member for furniture after the step (a);
(c) a member drying step of drying the furniture member coated with the antimicrobial agent by natural drying or thermal drying; And
(d) after the step (c), a step of adhering a finishing film made of a transparent material
≪ / RTI >

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