KR100471717B1 - Unpenetrable pannel against moisture and manufacturing process thereof - Google Patents

Abstract

The present invention relates to an antimicrobial impervious plate material and a method for producing a cultural material used for storage of cultural assets in museums, such as storage of the storage in the museum, a large particle layer in which a large particle is crushed or larger than the size of sawdust is distributed deep The small particle layer is formed, the small particle layer is broken into smaller than the size of the sawdust is formed to form a particle board to be formed on the surface layer and the back layer, and also by adhering the aluminum sheet on both sides of the particle board to produce an impervious plate material In that,

The particle layer forming the deep layer portion of the particle board, and the particle layer forming the surface layer and the back layer formed on both sides of the deep layer portion, the antimicrobial material of iodine-based and chlorine-based composite material is evenly distributed 600 ~ 800ppm The invention is characterized by.

Description

Antimicrobial impermeable plate material for manufacturing cultural assets and its manufacturing method {Unpenetrable pannel against moisture and manufacturing process

The present invention relates to an antimicrobial impervious plate material and a method for manufacturing the same used for the cultural property storage used as the outer wall finishing material of the storage for preserving the cultural property in the museum, etc. In particular, the present invention is a mold inside the particle board of the patent No. 341631, which the applicant has selected The present invention is characterized by incorporating an antibacterial substance that suppresses the generation of bacteria.

In general, cultural property is preserved in museums or other specific places, and in order to safely preserve the cultural property, it is necessary to keep the temperature and humidity required by the cultural property uniformly, while preventing the risk factors from invading from the outside.

In the prior art, wood such as paulownia, cedar, or spruce (SPRUCE: North American spruce), which have moisture-absorbing properties, are processed and used as an inner wall finishing material of the cultural storage, so the inner wall of the storage is used as the wood. When built, its own characteristics cannot control the humidity required by the cultural assets stored in the storage, so recently, the internal temperature and humidity of the storage are controlled using a constant temperature and humidity cabinet.

However, the above-mentioned thermo-hygrostat has the advantage of controlling the temperature and humidity of the indoor air while circulating the internal and external air by mechanical operation, while maintaining the constant temperature and humidity of the room, the constant temperature and humidity Because of the high operating cost and constant temperature / humidity of the machine, it is pointed out that it is not possible to control the temperature and humidity at the time of failure or power failure, and the sudden change in temperature has a significant effect on the damage of cultural property. Even though the temperature and humidity are controlled by mechanical air conditioning, there is a case of intermittent operation as a means to reduce the maintenance cost.A drastic change in temperature and humidity occurs inside the cabinet due to the intermittent operation of the thermo-hygrostat. If the problem is to damage the cultural property is pointed out as a problem The.

When using solid wood such as paulownia or cedar as an impervious material, it can be damaged by external pollutants and can not maintain the airtightness inside the cabinet, especially when it is damaged by moisture, germs, and insects. It has been pointed out that the cultural properties (relics) stored in the storage cannot be protected safely because the phenomenon that the stored cultural assets (damages) are damaged by affecting the temperature and humidity inside the storage.

That is, when the inner wall surface of the storage cabinet is constructed from the above-mentioned wood, the risk factors such as alkaline factors or harmful gases emitted from the concrete wall surface are not blocked, but rather, the dangerous factors are absorbed and released into the storage cabinet. It is not possible to prevent the phenomenon of damaging important cultural assets (relics) from the above mentioned risk factors.

In addition, the wooden wall of the cultural asset storage room has a disadvantage of insufficient heat insulation and also does not block the fire in the event of a fire.

The present invention was created to solve all the problems caused by the damage caused by the risk factors existed in the cultural assets stored in the storage of the cultural assets as described above, the present invention is used as an exterior wall finishing material of the storage of cultural assets from outside the storage Blocking risk factors in advance to prevent the infiltration of generated or existing risk factors, flame retardancy to prevent fire from transferring easily in case of fire, and preventing temperature and humidity outside the cabinet from penetrating the inside and at the same time temperature and humidity inside the cabinet Is to provide antibacterial impervious plate material with anti-fungal function to prevent mold from occurring on the wall of the cabinet, and also by-products (such as sawdust) generated from wood materials. In order to produce material from waste wood such as cutting wood that is generated during furniture production Therefore, the invention has been invented for another purpose to provide a method for producing an antimicrobial impervious plate material at a relatively low price.

As a means for achieving the above object, the antimicrobial impervious plate member of the present invention,

Each particle particles shredded or larger than the size of sawdust are bonded with a resin adhesive, but a large particle layer in which large particles are distributed is formed in the deep layer, and a small particle layer in which small particles are shredded smaller than the size of sawdust is distributed. In forming a particle board by being formed on the surface layer and the back layer, and by manufacturing an impervious plate member by adhering an aluminum sheet on both sides of the particle board,

In the resin adhesive for bonding the particle layer forming the deep layer portion of the particle board, and the particles forming the surface layer and the back layer formed on both sides of the deep layer portion, the amount of the antimicrobial compound of iodine-based and chlorine-based composite materials It is characterized in that the material is mixed evenly distributed within the range of 600 ~ 800ppm,

Antimicrobial impervious plate manufacturing method of the present invention,

A shredding process of shredding the wood into particles of very small particles such as the size of sawdust using a shredder;

A drying step of drying the particles that have undergone the secondary crushing process so as to have a moisture content of 2 to 7% by hot hot air;

A particle sorting step of sorting the particles that have undergone the drying process by selecting the large particles that are shredded or larger than the size of sawdust and the small particles that are shredded smaller than the size of the sawdust;

A foreign material removal step of removing and removing foreign matters mixed in each particle selected by size in the sorting process;

The resin coating process for spraying a resin adhesive with a small amount of formaldehyde emission to each particle selected in order to increase the bonding strength between the particles and particles in the state of separating the particles after the foreign matter removal process separately and ;

In the state where the weight is adjusted according to the thickness and density of the product to be manufactured by the resin coating process, the large particles are distributed in a predetermined thickness in the deep layer, and the small particles in a predetermined thickness in each of the surface layer and the back layer. A particle lamination step of forming a particle mat in which each particle is laminated in a triple structure by being distributed;

The particle mat produced in the particle lamination process is thermally compressed by using a press of high temperature and high pressure to densely compress each particle layer and thermally harden the resin adhesive applied to the surface of each particle to strongly adhere particles and particles of each particle layer. A press molding step of molding the particle board;

A cooling step of allowing the particle board formed in the press molding step to stand in the atmosphere to release hot heat, steam and gas and to cool until stabilized;

A cutting and polishing step of cutting the particle board cooled in a stabilization state in accordance with the specification to a specification and then smoothing and smoothing the front and back surfaces;

In manufacturing an impervious plate member including an aluminum sheet bonding step of bonding the aluminum sheet to both surfaces of the particle board subjected to the polishing process,

The above resin mixing process is mixed with the resin adhesive to be sprayed on each particle surface by adding an antimicrobial substance composed of an iodine-based chlorine-based composite material, and the amount of the antimicrobial substance is mixed within the range of 600 to 800 ppm with respect to the resin adhesive. It is characterized in that the resin and the antimicrobial material coating process for spraying in the state so that the antimicrobial material is applied to the surface of each particle together with the resin adhesive.

An embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 is a cross-sectional view of the antimicrobial impervious plate member of the present invention, Figure 2 shows a manufacturing process diagram of the present invention.

Reference numeral 1 denotes an antimicrobial impervious plate material, wherein the antimicrobial impervious plate material (1) is a crushed wood with a shredder to shred large particles equal to or larger than the size of sawdust and small particles shredded smaller than the size of sawdust It is composed of a structure in which the particle board 2 manufactured in the form of a panel and aluminum sheets 3a and 3b are bonded to both surfaces thereof.

The particle board 2 is divided into a deep layer 2a, a surface layer 2b, and a back layer 2c. The deep layer 2a has a large particle crushed to be the same size or slightly larger than the size of sawdust. It consists of a large particle layer to be formed, wherein the surface layer (2b) and the back layer (2c) is composed of a small particle layer in which a small particle crushed smaller than the size of the sawdust is formed to a suitable thickness.

A feature of the present invention is that the antimicrobial material is evenly distributed together with the resin adhesive in each of the deep layer portion 2a formed of the large particles and the surface layer 2b and the back layer 2c formed of the small particles. .

The resin adhesive is a natural resin that does not generate a formalin component and is responsible for bonding the particles of each of the large particles and the small particles. The above-mentioned antimicrobial material has a strong amount of iodine and a small amount of chlorine. It is composed of a composite material, and the above-mentioned antimicrobial material is mixed within the range of 600 to 800 ppm (this is the optimal amount, and the numerical limitation will be described later) with respect to the amount of the resin adhesive, and the deep layer portion 2a and the surface layer 2b. ) And evenly distributed throughout the back layer (2c), the antibacterial material contained evenly distributed in the deep layer and the surface layer and the back layer together with the resin adhesive is responsible for preventing the generation of mold on the particle board (2).

In addition, the adhesive for adhering the aluminum sheets 3a and 3b to the surface layer 2b and the back layer 2c of the particle board 2 has a low formaldehyde emission amount without affecting the physical properties of wood. .

Hereinafter, a method of manufacturing the antimicrobial impervious plate member 1 configured as described above will be described for each step.

(Crushing process)

It is a crusher that uses wood as a raw material, such as by-products from sawing wood, cutting wood, and waste wood generated when manufacturing furniture, and shreds the particles of crushed wood, that is, the size of particles into the same size as conventional sawdust. To crush.

The shredding process is a second shredding process of shredding the pieces of wood shredded in the first shredding process with the shredder again when the wood, which is a raw material, is difficult to be shredded to the size of sawdust by the first shredding process to produce particles of sawdust size. In this case, the particles are broken into large or small sizes based on sawdust.

(Drying process)

The particles produced in the shredding process are dried with a high temperature hot air of 350 to 450 ° C. (preferably 400 ° C.), and the moisture content of the particles to be dried is maintained at 2 to 7%.

(Particle sorting process)

The particles dried in the drying process are classified into large particles that are shredded or slightly larger than the size of sawdust and small particles that are shredded smaller than the particles of sawdust. In this case, it is preferable to use a mesh screen. Do.

(Dust removal process)

In the particle sorting process, foreign substances such as metal fragments, small stones, and dust mixed in large particles and small particles selected by sizes are removed by selection.

(Resin and Antibacterial Material Coating Process)

In the foreign material removal process, the resin particles and the antimicrobial substance are mixed and applied to the surfaces of the large particles and the small particles from which the foreign substances are removed. In this case, the application of the resin adhesive and the antimicrobial material is performed by selecting the large particles and the small particles. Spraying the mixture mixed with resin adhesive and antimicrobial material by spraying to separate conveyor and etc., so that the resin adhesive and antimicrobial material are mixed evenly on the surface of each particle of large particles and small particles. will be.

In addition, the resin adhesive is a natural resin having the characteristics of less change in the physical properties of the wood and a low amount of formaldehyde emission, the antimicrobial material is a combination of iodine-based and chlorine-based quantum having a strong anti-fungal function A substance is used, wherein the antimicrobial substance is mixed in an amount in the range of 600 to 800 ppm with respect to the amount of the resin adhesive used to bind the particle particles. The mixed amount of the antimicrobial substance is 600 to 800 ppm relative to the amount of the resin adhesive. The reason for the limitation is that when the antimicrobial substance is at least 600ppm or less, the antimicrobial action may be insufficient. Also, since the antimicrobial activity is the same from the maximum value of 800ppm, the antibacterial activity is the same. Not only cause cost increase but also inhibit the adhesive strength of resin adhesive. Since the maximum value of the considered antibacterial substance it is 800ppm is most preferred.

Particle Lamination Process

In the resin and antimicrobial material application process, the resin particles and the antimicrobial material are coated with the resin and the antimicrobial material coated together to produce a large particle and a small particle to adjust the weight according to the thickness and density of the product to be manufactured. The particles are distributed in a thickness to form a small particle layer, and then the large particles are stacked on the small particle layer in a predetermined thickness to form a large particle layer, and the small particles are laminated and distributed in a predetermined thickness on the large particle layer again to form small particles. As a means for forming a layer, a large particle layer is distributed in the deep portion, and a small particle layer is distributed in the surface layer and the back layer, thereby forming an uncompressed particle mat in which each particle layer is triple stacked.

In the above process, each particle in an uncompressed state in which a resin adhesive and an antimicrobial material are applied together is laminated in a triple layer, and each particle layer in a triple layer is sequentially stacked.

(Press molding process)

In the particle lamination process, the particle mat laminated in three layers is hot pressed using a high-temperature / high pressure press to compress each particle layer to a predetermined thickness, thereby compacting the particles and forming the particle board.

In the above process, the press for thermo-pressing each particle layer stacked in triplicate is a high temperature of about 180 to 250 ° C. capable of thermally curing the resin adhesive applied to the surface of each particle, and each particle distributed in each particle layer is predetermined. 20 to 50kg / cm ^2, which can be densely compressed to a thickness of, to produce particle boards that are strongly bonded to each other by a resin adhesive that is densely compressed and thermally cured by forming particles of each particle layer. do.

(Cooling process)

Particle board completed in the press molding process is a hot surface and when the compression molding under high temperature and high pressure is a state that the discharge of steam and gas is less, so that it is left in the air to release steam and gas to the atmosphere and the particle board itself is stabilized Cool until naturally.

(Cutting and polishing process)

After the particle board subjected to the cooling process is cut to the standard, the particle board cut by sand paper is polished, and the surface and the back surface thereof are smoothly and smoothly processed.

(Aluminum Sheet Bonding Process)

After the resin adhesive is coated on both sides of the cutting and polishing particle board, the aluminum sheet is bonded to complete the production of an impervious plate material which can block the penetration of moisture into the particle board.

In the process, the adhesive applied to both sides of the particle board is preferably a low amount of formaldehyde emission that damages the cultural property and use an adhesive that does not affect the physical properties of the particle board, and the aluminum sheet adhered to both sides of the particle board The thickness is about 0.1mm, and the thicker the thickness, the more flame retardant and impermeable.

The antimicrobial impervious panel of the present invention as described above is excellent in strength and flame retardant and water resistance effect, as well as having a strong antibacterial, anti-fungal function in the deep layer and the surface layer and the back layer forming the particle board Since the particle board itself has a function of suppressing the generation of molds, the antimicrobial impervious panel of the present invention has an effect of preventing mold from occurring when the wall of the storage cabinet is constructed.

1 is a cross-sectional view of the antimicrobial impervious plate member of the present invention.

Figure 2 is a manufacturing process of the present invention.

※ Explanation of code for main part of drawing

1: antibacterial impervious moisture plate 2: particle board

2a: deep layer 2b: surface layer

2c: back layer 3a, 3b: aluminum sheet

Claims (2)

Each particle particles shredded or larger than the size of sawdust are bonded with a resin adhesive, but a large particle layer in which large particles are distributed is formed in the deep layer, and a small particle layer in which small particles are shredded smaller than the size of sawdust is distributed. In forming a particle board by being formed on the surface layer and the back layer, and by manufacturing an impervious plate member by adhering an aluminum sheet on both sides of the particle board, In the resin adhesive for bonding the particle layer forming the deep layer portion of the particle board, and the particles forming the surface layer and the back layer formed on both sides of the deep layer portion, the amount of the antimicrobial compound of iodine-based and chlorine-based composite materials An antimicrobial impermeable plate material for cultural heritage storage, characterized in that the material is mixed within the range of 600-800 ppm and evenly distributed. A shredding process of shredding the wood into particles of very small particles such as the size of sawdust using a shredder; A drying step of drying the particles that have undergone the secondary crushing process so as to have a moisture content of 2 to 7% by hot hot air; A particle sorting step of sorting the particles that have undergone the drying process by selecting the large particles that are shredded or larger than the size of sawdust and the small particles that are shredded smaller than the size of the sawdust; A foreign material removal step of removing and removing foreign matters mixed in each particle selected by size in the sorting process; The resin coating process for spraying a resin adhesive with a small amount of formaldehyde emission to each particle selected in order to increase the bonding strength between the particles and particles in the state of separating the particles after the foreign matter removal process separately and ; In the state where the weight is adjusted according to the thickness and density of the product to be manufactured by the resin coating process, the large particles are distributed in a predetermined thickness in the deep layer, and the small particles in a predetermined thickness in each of the surface layer and the back layer. A particle lamination step of forming a particle mat in which each particle is laminated in a triple structure by being distributed; The particle mat produced in the particle lamination process is thermally compressed by using a press of high temperature and high pressure to densely compress each particle layer and thermally harden the resin adhesive applied to the surface of each particle to strongly adhere particles and particles of each particle layer. A press molding step of molding the particle board; A cooling step of allowing the particle board formed in the press molding step to stand in the atmosphere to release hot heat, steam and gas and to cool until stabilized; A cutting and polishing step of cutting the particle board cooled in a stabilization state in accordance with the specification to a specification and then smoothing and smoothing the front and back surfaces; In manufacturing an impervious plate member including an aluminum sheet bonding step of bonding the aluminum sheet to both surfaces of the particle board subjected to the polishing process, The above resin mixing process is mixed with the resin adhesive to be sprayed on each particle surface by adding an antimicrobial substance composed of an iodine-based chlorine-based composite material, and the amount of the antimicrobial substance is mixed within the range of 600 to 800 ppm with respect to the resin adhesive. A method for producing an antimicrobial impervious plate material for cultural property storage, characterized in that the step of applying a resin and an antimicrobial material by spraying in a state in which the antimicrobial material is applied to the surface of each particle together with the resin adhesive.