KR101187660B1 - Manufacturing method of eco-friendly, high performance pattern board and flame-retardant pattern board using the same - Google Patents

Abstract

PURPOSE: An environmentally-friendly high function veneer board manufacturing method and high function sliced veneer thereof are provided to prevent the discharge of toxic gas by obtaining the incombustibility of a high function sliced veneer. CONSTITUTION: An artificial wood board is arranged. A sliced veneer is attached on the surface of the arranged board. UV(Ultra Violet) coating solution is sprayed on the surface of the sliced veneer. Primer composite is sprayed on the surface of the created UV lower layer. Second UV coating solution is sprayed on the surface of the generated primer layer. An upper layer is formed. The board is dried. [Reference numerals] (AA) Protection film; (BB) UV upper layer; (CC) Primer layer; (DD) UV lower layer; (EE) Sliced veneer layer; (FF) Adhesive layer; (GG) Artificial wood board

Description

Eco-friendly high-performance veneer board manufacturing method and eco-friendly, high-performance veneer board according to it {MANUFACTURING METHOD OF ECO-FRIENDLY, HIGH PERFORMANCE PATTERN BOARD AND FLAME-RETARDANT PATTERN BOARD USING THE SAME}

The present invention relates to a method for manufacturing an eco-friendly high-performance board useful as an interior finishing material, such as doors or sinks of various furniture or interior doors for building, and an eco-friendly high-performance veneer board accordingly.

Building interior materials or interior finishing materials refer to materials used to finish and decorate the interior of the building, it is composed of a finishing board and sheet. Interior finishing boards and sheets such as various furniture doors, sink door doors, or building interior doors must be durable to withstand wear and must not be harmful to humans and the environment. In particular, it is an important requirement not only to have flame resistance today, but also to generate toxic gases even when ignited.

Conventionally, a panel having a desired color or pattern has been obtained by placing a transfer film printed with a desired color and pattern on a material such as plywood or processed wood (MDF, particle board, aggregated wood, etc.) and applying heat and pressure.

Alternatively, a panel having a desired color or pattern was obtained by applying an adhesive to a PVC DECO film printed on the upper surface with a desired color and pattern and then placing it on plywood or processed wood and applying heat and pressure.

However, when the transfer film is removed, the transfer film not only degrades visual properties such as color and pattern, and physical properties such as stretch resistance, solvent resistance, and light resistance, but also after a lapse of time. There are problems of cracking and the inability to obtain the texture of natural wood. In addition, since the color and pattern of the transfer surface may be erased, the sanding process for removing surface irregularities and foreign matters may not be performed on the transfer surface. Therefore, in the past, an attempt was made to increase the effects of scratch resistance, abrasion resistance, transparency, chemical resistance, solvent resistance, light resistance, stereoscopicity, high glossiness even after the film was removed by applying the top coating layer to the bottom of the release layer. There was a limit to increase the thickness of the thick. On the other hand, the glass was used as a subject to obtain a high gloss effect for a beautiful appearance, but there was a risk of being easily broken and heavy and not easy to handle.

In addition, the method of bonding the PVC DECO film printed on the upper surface with the desired color and pattern on the plywood or processed wood does not cause cracks in the printed layer, but similarly to the transfer film, the sanding process is used to remove surface irregularities and foreign substances. There is a problem in that it cannot be rough and the film is partially physically deformed in the process of hardening the adhesive when attaching the film, thereby making it difficult to obtain a smooth surface.

Therefore, the use of artificial wood using natural vegetable fiber reduces the harmful gas generation rate in the event of a fire, and contains a large amount of natural vegetable fiber to maintain the strength (physical properties) similar to natural wood, while being light in weight, and scratch resistance. In addition, high wear resistance, transparency, chemical resistance, solvent resistance, and light resistance, high effect of three-dimensional and high gloss, etc., can increase the unit cost of the product and require the development of building interior materials processing technology that can show the high quality like glass products. It is true.

The present invention uses artificial wood using a natural vegetable fiber having a strength (physical properties), processability, workability, etc., superior to natural wood, even after significantly reducing the content of synthetic resin, and after adhering the veneer on the upper surface of the artificial wood board, It provides an eco-friendly high-performance board manufacturing method and an eco-friendly high-performance board, characterized in that to form a UV undercoat layer, a primer layer for increasing the adhesive force and a UV top coat layer for imparting various functionalities.

The present invention not only does not burn well in case of fire, but also has excellent flame resistance, which does not emit toxic gas even when it is ignited, exhibits various patterns and shapes, and smoothness, scratch resistance, wear resistance, transparency, and chemical resistance of the product surface. , It provides an eco-friendly high-performance manufacturing method having excellent properties such as solvent resistance, light resistance, three-dimensional and high gloss, and an eco-friendly high performance board accordingly.

Accordingly, the present invention is a preferred first embodiment, (S1) preparing an artificial wood board; (S2) adhering veneer on the prepared upper surface of the board; (S3) forming a UV undercoat by applying an upper surface of the veneer with a first UV coating solution; (S4) forming a primer layer by applying an upper surface of the UV undercoat layer with a primer composition; (S5) applying a top surface of the primer layer with a second UV coating solution to form a UV top layer; And (S6) drying step; provides an eco-friendly high-performance veneer manufacturing method comprising a.

In the eco-friendly high-performance board manufacturing method according to the embodiment, the step (S2) is applied to the upper surface of the board with a thickness of 20 ~ 40㎛ coated on the veneer and the pressure of 30 ~ 30 ~ 50 ~ 60kgf / ㎠ at 60 ~ 90 ℃ It may be performed by pressing for 60 seconds.

In the eco-friendly high-performance board manufacturing method according to the embodiment, the adhesive may include 60 to 80% by weight polyester polyol, 15 to 25% by weight polyethylene polyphenyl isocyanate and 5 to 15% by weight polypropylene glycol.

Eco-friendly high-performance board manufacturing method according to the embodiment comprises the steps of (S2) and (S3) step of aging the board for 1 to 2 days at 10 ~ 40 ℃; And a sanding step.

In the eco-friendly high-performance board manufacturing method according to the embodiment, the first UV coating solution of step (S3) is 65 to 70% by weight of acrylate oligomer, 1 to 5% by weight of UV curing initiator, 15 to 20% by weight of acrylate monomer and additives It may be to include 10 to 15% by weight.

In the eco-friendly high-performance board manufacturing method according to the embodiment, step (S3) may be to apply a first UV coating liquid to a thickness of 10 ~ 20㎛ using a reverse roll method.

Eco-friendly high-performance board manufacturing method according to the embodiment is a drying step between the step (S3) and (S4); Ripening step; And a sanding step.

In the eco-friendly high-performance board manufacturing method according to the embodiment, the primer composition of step (S4) is 65 to 80% by weight of the urethane acrylate oligomer, 10 to 20% by weight of the acrylate monomer, 5 to 10% by weight of UV curing initiator and additives 3 It may be to include 5% by weight.

In the eco-friendly high-performance board manufacturing method according to the embodiment, (S4) step may be to apply a primer composition to a thickness of 10 ~ 20㎛ using a reverse roll coating method.

Eco-friendly high-performance board manufacturing method according to the embodiment is a drying step between the step (S4) and (S5); Ripening step; And a sanding step.

In the eco-friendly high-performance board manufacturing method according to the embodiment, (S5) step is 40 to 45% by weight of polyester acrylate oligomer, 35 to 40% by weight of acrylate monomer, 5 to 10% by weight of additives, UV curing initiator 5 to 10 The second UV coating solution including the weight% may be coated by a curtain coating method.

In the eco-friendly high-performance board manufacturing method according to the embodiment, the second UV coating solution may be to coat the thickness of 70 ~ 150㎛.

In the eco-friendly high-performance board manufacturing method according to the embodiment, the drying step may be performed at a speed of 6 ~ 15m / min under conditions of the light amount 2400 ~ 3500mJ and temperature 20 ~ 60 ℃ using a UV lamp.

Eco-friendly high-performance board manufacturing method according to the embodiment, the step of adhering the protective film on the UV top layer; may further comprise a.

The present invention provides an eco-friendly high-performance board manufactured by the above manufacturing method as a second preferred embodiment.

According to the present invention, not only does not burn well in a fire, but also emits toxic gas even when it is ignited, and shows various patterns and shapes, smoothness, scratch resistance, wear resistance, transparency, chemical resistance, It provides an eco-friendly high performance veneer manufacturing method with excellent properties such as solvent resistance, light resistance, three-dimensional properties and high gloss, and accordingly eco-friendly high performance veneer.

1 is a cross-sectional view of an eco-friendly high-performance board according to an embodiment of the present invention.

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

The present invention relates to an eco-friendly high-performance board manufacturing method and thus an eco-friendly high-performance board, in particular, before forming a UV top coat layer to give functionality to the artificial wood board bonded to the veneer on the upper surface to form a UV undercoat and primer layer By suppressing the generation of bubbles that can occur during the coating (painting) of the UV top coat layer, to double the effects of smoothness, transparency, light resistance, chemical resistance, three-dimensional and high gloss, scratch resistance, wear resistance, etc. To provide. In addition, by significantly reducing the content of synthetic resins, by using artificial wood using natural vegetable fibers having strength (physical properties), processability, and workability, which are superior to natural wood, harmful gas generation rate is reduced, and a large amount of natural vegetable fiber is produced. It is light in weight and has the same texture as natural wood, and has excellent physical performance, processability, and workability.

To this end, the present invention (S1) preparing a wooden board; (S2) adhering veneer on the prepared upper surface of the board; (S3) forming a UV undercoat by applying an upper surface of the veneer with a first UV coating solution; (S4) forming a primer layer by applying an upper surface of the UV undercoat layer with a primer composition; (S5) applying a top surface of the primer layer with a second UV coating solution to form a UV top layer; And (S6) drying step; provides an eco-friendly high-performance veneer manufacturing method comprising a.

In the step (S1) to prepare an artificial wood board. The board is preferably prepared to have a thickness of 1 ~ 12mm.

In addition, the board is one or more natural vegetable fiber powder selected from the group consisting of waste paper, rice straw, corn, sorghum, hemp, coffee skin, palm fronds, sugar cane grounds and green tea grounds; Synthetic resins comprising polypropylene or high density polyethylene and ethylene vinyl acetate or linear low density polyethylene; At least one binder selected from maleated polypropylene (MAPP), titanate and zirconate; And at least one additive selected from the group consisting of lubricants, antioxidants, UV stabilizers, nucleating agents, fillers, and inorganic pigments. The information on the artificial wood is dedicated to the contents described in Korean Patent Application Nos. 10-2010-0121872 and 10-2010-0121873 filed by the present applicant.

Specifically, the artificial wood of the present invention is 60-75% by weight of at least one natural plant fiber powder selected from the group consisting of waste paper, rice straw, corn sorghum, sorghum, hemp, coffee bark, palm fronds, sugar cane dregs and green tea dregs; 13-29 weight% of polypropylene or high density polyethylene, and 3-11 weight% of ethylene vinyl acetate or linear low density polyethylene; 0.5 to 2.5% by weight of one binder selected from maleated polypropylene (MAPP), titanate and zirconate; And 2 to 6% by weight of one or more additives selected from the group consisting of lubricants, antioxidants, UV stabilizers, nucleating agents, fillers and inorganic pigments. Such artificial wood can be extruded according to the site in the shape of a plate or a mold, and the harmful gas generation rate is reduced, and natural vegetable fiber contains a large amount of light weight, but the synthetic resin is contained in a small amount of 16 to 40% by weight. Despite this, it has a similar strength and properties to natural wood.

Preparing the artificial wood board preferably includes a step of removing foreign matter on the surface of the board. Artificial wood boards contain plastics, which can generate static electricity, which can cause a large amount of dirt or dust to stick to them. If foreign matter or dust is not removed from the surface of the board, foreign matter or dust accumulates in the adhesive during the subsequent bonding process, which causes deterioration of adhesive force, and swelling may occur at a later UV top layer forming step due to unevenness of the surface. It becomes possible. In other words, the foreign matter or dust attached to the surface of the board must be removed to produce a product with no bends on the mirror surface.

In the step (S2) to glue the veneer on the upper surface of the prepared artificial wood board. The veneer preferably has a thickness of 0.18 to 0.5 mm, and artificial veneer or natural veneer may be used.

In the step (S2), after applying the adhesive to the upper surface of the artificial wood board, it is preferable to press the veneer to adhere. The artificial wood board is preferable than magnesium board or vermiculite board because not only completely removes moisture during molding but also prevents moisture penetration after molding. Since the artificial wood of the present invention has a structure in which the resin surrounds the pores and the outer surface of the vegetable fiber, moisture penetration is prevented.

The adhesive preferably comprises 60 to 80 weight percent polyester polyol, 15 to 25 weight percent polyethylene polyphenyl isocyanate and 5 to 15 weight percent polypropylene glycol. And it is preferable to apply | coat to the upper surface of the said board | substrate with the thickness of 20-40 micrometers using the spray method.

After the adhesive is applied to the board, it is preferable to press the veneer on the upper surface of the artificial wood board, and to compress the sheet using a hot press method. At this time, the press condition is preferably pressed for 30 to 60 seconds at a pressure of 50 ~ 60kgf / ㎠ at 60 ~ 90 ℃.

After the press, the artificial wood board is cooled and aged at a temperature of 10 to 40 ° C. for 1 to 2 days. This is to prevent deformation of the board, such as bending or twisting, by removing excess moisture remaining in the board, veneer, adhesive, or the like. In addition, poor adhesion can be prevented by allowing the adhesive to be completely impregnated and cured to the board.

And, it is preferable to go through the sanding process for the smoothness and foreign matter removal of the veneer adhered to the artificial wood board, and to increase the adhesive strength during the coating under UV.

In step S3, the veneer is coated with a first UV coating solution to fill the rough surface of the veneer adhered to the upper surface of the board. Since the rough surface is a cause of bubbles generated when forming the UV top layer, it is preferable to fill it. If bubbles are formed when forming the UV top coat layer, the smoothness and steric effect of the surface of the product are degraded and the gloss is lowered, which is not preferable.

The first UV coating solution preferably contains 65 to 70% by weight of acrylate oligomer, 1 to 5% by weight of UV curing initiator, 15 to 20% by weight of acrylate monomer and 10 to 15% by weight of additive.

In the step (S3), it is preferable to apply the first UV coating solution to the surface of the veneer adhered to the upper surface of the board using a reverse roll method to a thickness of 10 ~ 20㎛.

After applying the first UV coating liquid, it is preferable to dry at a speed of 7 to 12 m / min under the conditions of light amount 900 ~ 1200mJ and temperature 20 ~ 60 ℃ using a UV lamp.

And, after drying the board, it is preferable to mature for 1 to 2 days at a temperature of 10 ~ 40 ℃. This is to allow the UV coating solution to completely cure. In addition, poor adhesion can be prevented by allowing the board to be completely impregnated and cured, which may remain.

In addition, it is preferable to go through the sanding process for smoothness and foreign matter removal, and to increase the adhesive strength during coating of the primer composition.

In the step (S4), the upper surface of the UV undercoat is coated with a primer composition.

When the sanding process and the foreign material removal process as described above, the surface tension of the upper surface of the UV undercoat is reduced to about 25 ~ 30dyn / cm at 40 ~ 50dyn / cm and the adhesive force is lowered, it is preferable to apply the primer composition to improve this.

The primer composition preferably contains 65 to 80% by weight of urethane acrylate oligomer, 10 to 20% by weight of acrylate monomer, 5 to 10% by weight of UV curing initiator, and 3 to 5% by weight of additive.

And, it is preferable to apply the primer composition to a thickness of 10 ~ 20㎛ using a reverse roll coating method. After applying the primer composition, it is preferable to dry the primer composition by forced air circulation.

In the step (S5), the upper surface of the primer layer is coated with a second UV coating solution to form a UV top layer. The second UV coating liquid preferably comprises 40 to 45% by weight of polyester acrylate oligomer, 35 to 40% by weight of acrylate monomer, 5 to 10% by weight of additive, and 5 to 10% by weight of UV curing initiator, which is a curtain It is preferable to apply by a coating method. According to the composition, yellowing does not occur well even when exposed to a large amount of light.

At this time, the second UV coating liquid is preferably coated with a thickness of 70 ~ 150㎛. When the coating thickness of the UV top coat layer is 70 ~ 150㎛ as described above, the smoothness, transparency, stereoscopicity, light resistance, chemical resistance, high gloss, scratch resistance, abrasion resistance, etc. of the product surface is preferable.

(S6) The drying step is preferably performed at a speed of 6 ~ 15m / min under the conditions of the light amount 2400 ~ 3500mJ and temperature 20 ~ 60 ℃ using a UV lamp. The reason why the amount of light is large is because the thickness of the UV top coat layer is thick.

In addition, it is preferable to adhere the protective film to the upper surface of the UV top layer for sale and storage.

In addition, in order to sufficiently cure the UV top coat layer (coating layer), it is preferable to mature for 2 to 4 days at a temperature of 10 to 40 ℃.

Eco-friendly high-performance board according to the present invention manufactured as described above is not only burned well in the event of fire, but toxic gas is not emitted even when ignited, and exhibits various patterns and shapes, scratch resistance, wear resistance, solvent resistance, light resistance, It has excellent properties such as stericity and high gloss.

Although the preferred embodiments of the present invention have been shown and described above, the present invention is not limited to the above-described embodiments, and the general knowledge in the field of the present invention without departing from the gist of the present invention as claimed in the following claims. Anyone with a variety of modifications are possible, of course, such modifications are within the scope of the claims.

Claims (15)

(S1) preparing an artificial wood board;
(S2) adhering veneer on the prepared upper surface of the board;
(S3) forming a UV undercoat by applying an upper surface of the veneer with a first UV coating solution;
(S4) forming a primer layer by applying an upper surface of the UV undercoat layer with a primer composition;
(S5) applying a second UV coating liquid to the upper surface of the primer layer to a thickness of 70 ~ 150㎛ to form a UV top coat layer; And
(S6) comprises a drying step;
The (S2) step is performed by applying an adhesive to the upper surface of the board with a thickness of 20 ~ 40㎛, then put the veneer and press for 30 to 60 seconds at a pressure of 50 ~ 60kgf / ㎠ at 60 ~ 90 ℃,
The adhesive comprises 60 to 80 weight percent polyester polyol, 15 to 25 weight percent polyethylene polyphenyl isocyanate and 5 to 15 weight percent polypropylene glycol,
The primer composition of the step (S4) is an environmentally friendly high function comprising 65 to 80% by weight urethane acrylate oligomer, 10 to 20% by weight acrylate monomer, 5 to 10% by weight UV curing initiator and 3 to 5% by weight additives Method of making veneer.
delete delete The method of claim 1, wherein the step (S2) and (S3)
Aging the board at 10 to 40 ° C. for 1 to 2 days; And Sanding step; Eco-friendly high-performance veneer manufacturing method comprising a further.
The method of claim 1,
The first UV coating liquid of step (S3) is an eco-friendly high-performance high-performance functional that comprises 65 to 70% by weight of acrylate oligomer, 1 to 5% by weight of UV curing initiator, 15 to 20% by weight of acrylate monomer and 10 to 15% by weight of additive. Method of making veneer.
The method of claim 1,
(S3) step is to apply the first UV coating liquid to the thickness of 10 ~ 20㎛ using a reverse roll method eco-friendly high-performance veneer manufacturing method.
The method of claim 1, wherein the step (S3) and (S4)
Drying step; Ripening step; And Sanding step; Eco-friendly high-performance veneer manufacturing method characterized in that it further comprises.
delete The method of claim 1,
(S4) step is to apply a primer composition to a thickness of 10 ~ 20㎛ using a reverse roll coating method eco-friendly high-performance veneer manufacturing method.
The method of claim 1, wherein the step (S4) and (S5)
Drying step; Ripening step; And Sanding step; Eco-friendly high-performance veneer manufacturing method characterized in that it further comprises.
The method of claim 1,
Step (S5) is curtain coating the second UV coating liquid containing 40 to 45% by weight of polyester acrylate oligomer, 35 to 40% by weight of acrylate monomer, 5 to 10% by weight of additive, and 5 to 10% by weight of UV curing initiator. Eco-friendly high-performance veneer manufacturing method characterized in that the coating method.
delete The method of claim 1,
Drying step is an eco-friendly high-performance veneer manufacturing method that is carried out at a speed of 6 ~ 15m / min under the condition of the light quantity 2400 ~ 3500mJ and temperature 20 ~ 60 ℃ using a UV lamp.
The method of claim 1,
Bonding a protective film on the upper surface of the UV top layer; Eco-friendly high-performance veneer manufacturing method comprising a.
An eco-friendly high-performance veneer produced according to any one of claims 1, 4, 7, 9, 11, 13, 14, and 14.

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