KR101732416B1 - Opet sheet containing metal layer for furniture and building material, and method for manufacturing the same - Google Patents

Abstract

The present invention relates to an OPET sheet including a metal layer for furniture and building materials and a method of manufacturing the same. More particularly, the present invention relates to a plastic sheet, a foam panel, a steel panel, a wood panel, And an OPET sheet including a metal layer for furniture and building materials including an OPET film which can be used by being adhered to a building material or the like.
According to the present invention, it is possible to provide an OPET sheet for furniture and building materials which is excellent in smoothness and heat resistance and has a high weather resistance and a metal texture including a metal layer by using an OPET film of Kofudo. In addition, a hard coating can be provided to protect the surface, prevent scratches, and improve hardness.

Description

TECHNICAL FIELD The present invention relates to an OPET sheet including a metal layer for furniture and a building material, and a method of manufacturing the OPET sheet and a method for manufacturing the OPET sheet.

The present invention relates to an OPET sheet comprising a metal layer for furniture and building materials and a method of manufacturing the same. More particularly, the present invention relates to an OPET sheet comprising an OPET sheet which can be used to adhere to wood materials, plastics, foam panels, And a metal layer for building materials, and a method of manufacturing the OPET sheet.

In general, a sheet of paper is used for the interior of a building or for attaching to the surface of the furniture to protect the surface of the ornament or furniture. Such sheet includes pulp or synthetic resin, and mainly uses PVC film.

However, the conventional PVC film is excellent in water resistance and oil resistance, but has poor heat resistance and solvent resistance, has a weak point of detecting environmental hormones, and has a problem of generating toxic gas which is fatal to the human body in the event of fire.

In order to solve the problem of the conventional PVC film, the GPET film is used instead of the PVC film. However, since the GPET film is produced mainly in a thin thickness, the hardness is low and the use range is limited.

Korean Utility Model Registration No. 20-2006-0027136

It is an object of the present invention to provide an OPET sheet comprising a metal layer for furniture and building materials which is capable of protecting the surfaces of furniture and building materials and which is decoratable and not harmful, and a method of manufacturing the same.

The present invention relates to a process for producing a polyimide film, which comprises UV primer treatment on one side of OPET (oriented polyethlene terephthalate) film having a thickness of 100 m or more; Forming a metal layer on the UV primed top; Performing a polyurethane (PU) primer treatment on the metal layer; And hard coating the upper part of the PU primer treated with a metal layer for furniture and building materials.

The thickness of the OPET film may be 100 mu m to 350 mu m.

The OPET film may be a biaxially stretched PET film.

The surface finish of the decolor film is conventionally matte or simple embossing. However, recently, as the surface finish is changed to high gloss (more than 85% gloss), the smoothness of the fabric It is emerging as an important variable. Also, in the case of a high gloss sheet for furniture, the smoothness and stiffness of the sheet are very important factors for securing the high gloss sheet quality. Currently, PVC and GPET are used for high-gloss sheet as a material for decorative materials for furniture and furniture. Both of these fabrics have low stiffness and heat resistance of 80 ℃ or less, which limits the smoothness and stiffness. However, since OPET applied in the present invention is much superior in stiffness and heat resistance than GPET and PVC, the drawbacks of GPET and PVC can be overcome. It is easy to make pearl printing, hard coating and so on during high gloss work. It is easy to adhere finished wood products (PB, MDF, etc.), plastic foams and steel plates, easy. In addition, biaxially stretched transparent PET (OPET) exhibits significantly higher heat resistance than non-oriented GPET or PVC and has a strong surface strength, which shows a distinct performance difference in the evaluation of finished product properties. In the case of a high gloss sheet, The performance of the system is influenced. The present invention has an advantage that high smoothness and high weather resistance can be realized by applying OPET as a base fabric.

The UV primer may include but is not limited to urethane, acrylate resin, and photoinitiator in a weight ratio of 1: 1: 0.1. The UV primer treatment can be performed by applying a primer to one side of the OPET film and UV-curing the primer. Conventionally, when a metal layer is included, there is a problem that the metal layer easily peels off. However, when the UV primer treatment according to the present invention is performed, the problem that the metal layer easily peels off the OPET film layer can be solved.

In the step of forming the metal layer, the metal may be selected from the group consisting of aluminum, magnesium, copper and tungsten, and the metal layer may be formed by a method selected from the group consisting of vapor deposition, sputtering and metal ink printing. In this case, the thickness of the metal layer may be 150 to 700 angstroms, preferably 300 to 450 angstroms, and more preferably 400 angstroms.

The PU primer can be applied to the top of the metal layer by mixing polyurethane and isocyanate to a thickness of 0.5 to 1.5 占 퐉 and aged at 35 to 60 占 폚 for 60 to 80 hours to change the thermoplastic resin to a thermosetting resin. The time may preferably be 70 to 80 hours, and more preferably 72 hours.

The hard coating may be performed by applying a UV curable resin and then curing. The effect of surface protection, scratch prevention, and hardness improvement can be realized by hard coating.

In the present invention, it is possible to obtain a reflectance close to a glass mirror (about 98 to 99% reflectivity) by depositing a metal layer and applying a PU primer to the metal layer and then performing a UV hard coating, . In addition, by applying Kofudo's transparent OPET as a base fabric, it is possible to realize excellent surface strength, stiffness, and smoothness, and it is effective not only for decoration but also for replacing a large front glass mirror. This eliminates the disadvantages of glass, which is heavy and highly dangerous to breakage.

The OPET sheet containing the metal layer thus prepared can adhere one surface of the non-UV primer-treated PET to the core material. At this time, an OPET not treated with UV primer may further include an adhesive, a primer, or a release paper on one side, but is not limited thereto. The core material may be a wood material, plastic, foam panel or steel, preferably a foam panel, wood, PB, MDF or PW but is not limited thereto.

The present invention relates to an OPET film having a thickness of 100 mu m or more, which is UV-primed on one side; A metal layer formed on the UV primer-treated surface of the OPET film; A PU primer treated on top of the metal layer; And a metal layer comprising a hard coating layer formed on the PU primed top.

In the metal layer, the metal may be selected from the group consisting of aluminum, magnesium, copper, and tungsten. The metal layer may be formed by a method selected from the group consisting of vapor deposition, sputtering, and metal ink printing on the UV primer-treated surface of the OPET film.

The OPET film, the UV primer, the metal layer, the PU primer and the hard coat layer are the same as those described above, and thus will not be described here.

According to the present invention, it is possible to provide a PET sheet for furniture and building materials, which is excellent in smoothness and heat resistance, and exhibits high weatherability and metal texture including a metal layer, using OPFET film of Kofudo.

It also provides a hard coating that protects the surface, prevents scratches and improves hardness.

Further, in the present invention, a reflectivity close to the glass mirror can be obtained by depositing a metal layer, applying a PU primer to the metal layer, and then performing UV hard coating. In addition, by using Kofudo's transparent OPET, excellent surface strength, stiffness, and smoothness can be realized, which can replace large glass front mirrors as well as decor. Accordingly, it is possible to eliminate the disadvantage of the glass which is heavy and has a high risk of breakage.

1 is a cross-sectional view of a PET sheet according to an embodiment of the present invention attached to a core material.

Hereinafter, the present invention will be described in detail by way of examples. The objects, features and advantages of the present invention will be readily understood through the following drawings and examples. The present invention is not limited to the drawings and embodiments described herein, but may be embodied in other forms. The drawings and embodiments are provided so that those skilled in the art can fully understand the spirit of the present invention. therefore. The scope of the present invention should not be limited by the following drawings and examples.

<Examples> Production of OPET Sheet Containing Metal Layer for Furniture and Building Materials

Both sides of the transparent OPET film were corona treated and the corona treated OPET film was subjected to UV primer treatment. At this time, the primer was coated with a thickness of 1 탆 and irradiated with 365 nm UV for 10 seconds. Thereafter, aluminum was sputter deposited to form a metal layer having a thickness of about 400 Å. The metal layer was then primed with PU. The PU primer was coated at a thickness of 1 mu m and then aged at 42 DEG C for 72 hours. Then, an OPET sheet containing a metal layer was prepared by applying a UV curable resin on the PU primed top and curing it to form a hard coat layer. The cross section of the prepared OPET sheet is shown in Fig.

<Comparative Example>

Aluminum was deposited on transparent PET, then adhesive was applied on the deposition surface, PVC was adhered to the deposition surface, and hard coating was performed on the opposite side of the deposition to produce a PET metal sheet.

In general, a conventional metal sheet (comparative example) used as a decorative film for furniture and home appliances has a limitation in raising the thickness of transparent PET to a high degree. Further, since the transparent PET layer has a high haze, it can not be used for a mirror. In order to compensate for this, the present invention can provide a reflectivity close to the glass mirror by applying the PU primer to the deposited metal layer and then performing UV hard coating, and it is not necessary to laminate PVC or other fabric unlike the conventional method. In addition, by using Kokudo transparent OPET, excellent surface strength, stiffness and smoothness can be realized, which can replace a large front glass mirror as well as a decoration. This eliminates the disadvantages of glass, which is heavy and highly dangerous to breakage.

110: OPET film 111: UV primer
112: metal layer 113: PU primer
114: hard coating layer 115: adhesive
116: core material

Claims (6)

1. A method for producing an OPET sheet comprising a metal layer for furniture and building materials to be adhered to a core material composed of woody material, plastic, foam panel or steel,
A UV primer treatment on one side of an oriented polyethlene terephthalate (OPET) film having a thickness of 100 占 퐉 or more;
Forming a metal layer on the UV primed top;
Performing a PU (polyurethane) primer treatment on the metal layer; And
And hard coating the PU primed tops
A method for producing an OPET sheet comprising a metal layer.
The method according to claim 1,
In the step of forming the metal layer,
Aluminum, magnesium, copper, and tungsten.
A method for producing an OPET sheet comprising a metal layer.
The method according to claim 1,
The step of forming the metal layer
Wherein the metal layer is formed by a method selected from the group consisting of sputtering, vapor deposition, and metal ink printing method
A method for producing an OPET sheet comprising a metal layer.
An OPET sheet comprising a metal layer for furniture and building materials used by adhering to a core composed of woody material, plastic, foam panel or steel,
An OPET film having a thickness of 100 mu m or more on one side of which is UV primed;
A metal layer formed on the UV primer-treated surface of the OPET film;
A PU primer treated on top of the metal layer; And
And a hard coat layer formed on the PU primed upper portion
An OPET sheet comprising a metal layer.
The method of claim 4,
In the metal layer,
Aluminum, magnesium, copper, and tungsten.
An OPET sheet comprising a metal layer.
The method of claim 4,
The metal layer
On the UV primer treated side of the OPET film,
Sputtering, vapor deposition, and metal ink printing method.
An OPET sheet comprising a metal layer.

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