JPH1122141A - Building panel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain excellent adhesion by forming a decorative layer on the surface at the outer side of a panel main body and by forming an adhesive film on a part of the decorative portion to be sealing processed on a panel on which part of the decorative layer is to be sealing processed. SOLUTION: A decorative layer 2 comprising a fluorine-based resin coat, acrylate resin electrodeposition coating, ceramic coating film and so forth is formed on the surface of outer side of a panel main body 1 comprising metals such as aluminum, stainless steel and so forth. Then, an adhesive film 3 is formed on part of portion or the whole portion which is to be sealing processed on the decorative layer 2, and primer to be used for applying the sealing material is used for the adhesive film 3. Next, electric discharge treatment is applied to the portion to be sealing processed of the decorative layer 2, a primer solution is coated and dried thereby forming a primer layer as an adhesive film 3. Thus, the sealing work can be performed easier.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a building panel used for the inside and outside walls of a building.

[0002]

2. Description of the Related Art Architectural panels used on the inner and outer walls of a building are made of metal such as fluororesin on the outer surface of a metal panel body in order to impart weather resistance and non-staining properties. 2. Description of the Related Art A decorative layer formed by laminating a resin coating film, a ceramic coating film, or another decorative layer, or a fluororesin film on a panel surface has been used. When assembling this building panel to form the inner and outer walls, a sealing material is applied to the gap between them, but if a hard-to-adhesive decorative layer such as a fluororesin coating is formed on the surface, Since the adhesion of the sealing material is poor, blasting is performed on the portion of the decorative layer to be sealed.

[0003] However, the blasting process is troublesome and cannot provide a sufficient adhesive force, and a countermeasure has been desired.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a building panel which has excellent adhesiveness to a sealing material and can easily perform sealing work.

[0005]

Means for Solving the Problems The present inventor has conducted intensive studies to achieve the above object, and as a result, a portion of the decorative layer formed on the outer surface of the panel body to be sealed is coated with a resin film or the like. By forming an adhesive film,
The present inventor has found that excellent adhesion to a sealing material is provided and that sealing work is easily performed, and the present invention has been accomplished.

That is, the present invention provides the following building panels. Claim 1: a decorative layer is formed on the outer surface of the panel body,
An architectural panel in which a part of the decorative layer is subjected to sealing processing, wherein at least a part of the decorative layer part to be sealed is formed with an adhesive film with a sealing material. Claim 2: The decorative layer is a fluorine-based resin coating, an acrylic resin electrodeposition coating, or a ceramic coating.
Architectural panel as described.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described in more detail. As shown in FIG. 1, a building panel according to the present invention comprises a panel body 1 having a decorative layer 2 formed on an outer surface thereof. is there. In this case, the panel body is usually aluminum,
It is formed of a metal such as stainless steel, but is not limited thereto. Further, as the decorative layer, for example, a coating film of a fluororesin such as polyvinylidene fluoride / organosol paint, an electrodeposition coating film of an acrylic resin, a ceramic coating film, or a laminate film in which a fluororesin film is bonded to a metal panel. However, in the present invention, the present invention is particularly effective for a poorly-adhesive decorative layer such as a fluorine-based resin coating, an acrylic resin electrodeposition coating, and a ceramic coating.

In the present invention, the adhesive layer 3 is formed on a part or all of the sealing portion of the decorative layer 2. As the adhesive film, a resin easily adhesive to the sealing material, for example, a thermoplastic resin such as a vinyl chloride resin, an acrylic resin, a urethane resin, an unsaturated polyester resin, an epoxy resin, a thermosetting resin such as a phenol resin, and These resins include those obtained by mixing additives such as a polyfunctional monomer and an adhesion-imparting agent such as a coupling agent.These can be formed into a film by means such as coating and laminating. By using a primer used for the, a discharge treatment process is applied to the part of the decorative layer to be subjected to sealing processing, then a solution used as a sealing material application primer is applied and dried to form a primer layer, This can be used as an adhesive film. At the time of such a treatment or coating of the resin layer, a portion where the sealing material is not sealed may be protected with a masking tape or the like so as not to be treated. In this case, even if contamination occurs due to protrusion of the sealing material at the time of applying the sealing material, what has adhered to the portion where the sealing material is not applied can be peeled off relatively easily. The protection of the masking tape or the like may be used as it is when the sealing material is applied. After the formation of such an adhesive film, a protective film may be adhered to the adhesive film and stored in a protected state until the panel is applied.

In this case, a perforation or the like may be formed in the protective film, and only the protective film in the portion where the sealing material is applied may be removed while leaving the portion where the sealing material is not applied. With the perforations or the like, it is possible to identify the portion that has been adhered to the base, and it is also possible to use the remaining part of the protective film where the sealing material is not applied as masking when applying the sealing material.

[0010] As the discharge treatment to be performed in advance in forming the primer layer, a corona treatment, a plasma treatment, a treatment for blowing out a corona discharge or an arc discharge by a gas flow, and a plasma torch treatment are preferable.

Here, as the corona treatment, a method in which a discharge is generated between the electrode and the facing electrode by a high-frequency high voltage and the discharge treatment is performed by passing the panel through the discharge space can be adopted. Alternatively, when the panel main body is a conductor such as a metal, the surface to be processed can be modified by causing a discharge between the electrode and the panel using the panel main body itself as a facing electrode. In this case, the discharge condition is usually
Output is 10 to 1000 W, processing time is 0.1 to 30 sec
c.

In the plasma treatment, the surface of the panel is modified by utilizing ions, electrons, radicals, light, atoms, molecules and the like in the plasma, and the gas is treated at a predetermined pressure (low pressure or atmospheric pressure). A method in which a discharge is generated by a DC or AC electric field, and a panel is disposed during the discharge or downstream of the gas flow from the discharge to perform a discharge treatment. In this case, the discharge conditions are usually such that the pressure is 0.001 to
1000 Torr, plasma excitation electric field frequency is DC,
A constant frequency alternating current of 50 Hz or the like, an alternating current of about 1 to 100 kHz, a radio wave of 13.56 MHz or the like, a microwave of 2.45 GHz or the like can be used. As the gas, argon (Ar) gas, oxygen gas, air, nitrogen, helium (H
e) Gas, CF ₄ or the like is used.

As a process for blowing corona discharge or arc discharge by a gas flow, a corona discharge or arc discharge is generated between the electrodes, a gas flow such as air is blown, and the panel is applied to the discharge blown downstream. A discharge treatment method is employed. In this case, the discharge conditions are preferably such that the discharge outlet and the work surface of the panel are normally separated by 1 to 100 mm, and the processing time is preferably about 1 to 30 sec.

As the plasma torch treatment, a method in which a plasma discharge is generated at atmospheric pressure or the like, gas is blown, and a discharge treatment is performed by applying a panel to the discharge blown to the downstream side can be adopted. In this case, the discharge conditions are generally helium gas, argon gas or the like as the gas, and the pressure is 500 to
2000 Torr, frequency is 50Hz-100MHz,
The processing time is about 1 to 30 seconds.

The building panel of the present invention can be constructed in accordance with a conventional method to form inner and outer walls. At this time, since the decorative layer to be sealed has the above-mentioned adhesive film, it is blasted at a building site. Since the sealing material 4 is directly applied without providing a treatment or a discharge treatment, and without applying a primer, and provides excellent adhesiveness,
Man-hours and time for sealing work can be reduced. In this case, it is acceptable to use a primer separately or to perform a pretreatment such as an electric discharge treatment on a portion to be sealed at a building site in the sealing work.

Next, an experimental example will be described. [Experimental example] The shape as shown in FIG.
cm, height 3 cm), a corona treatment (output: 1) on one side of a metal panel (Kyner high-temperature baked steel panel) on which a fluororesin coating is formed on the surface to be sealed.
00W, processing speed: 1.0 m / min; TANTEC H
V05-2), a primer (Petam No. 3 primer, manufactured by Bridgestone Corporation) was applied by brush and air-dried to form a primer layer (adhesive film).

After the above treatment, each panel was left in a cool and dark place for one week. Next, the two panels are fixed on a pedestal with the part to be sealed (primer layer) facing the surface, separated by 1 cm, and then sealed with a sealing material (manufactured by Bridgestone Corp., Tum polysulfide-based sealing material, PS2000) was applied. 20
After curing for one week in an atmosphere of 55 ° C. and 55% RH and then for one week at 50 ° C., the adhesiveness of the sealing material was evaluated. As a result, the adhesion was good. In addition, as a result of performing sealing processing without forming an adhesive film for comparison, adhesiveness was poor.

The above results were determined as to which part was destroyed when the two panels were forcibly separated. That is, when both were peeled off at the boundary surface between the sealing material and the painted panel, adhesion was determined to be poor, and when only cohesive failure occurred inside the sealing material, adhesion was determined to be good.

[0019]

The building panel of the present invention has good adhesiveness to a sealing material and can be easily sealed.

[Brief description of the drawings]

FIG. 1 is a sectional view showing an embodiment of the present invention.

FIG. 2 is a sectional view showing a state where sealing is performed using the same example.

[Explanation of symbols]

 1 Panel body 2 Decorative layer 3 Adhesive film 4 Sealant

Claims (2)

[Claims] In a building panel in which a decorative layer is formed on an outer surface of a panel body and a part of the decorative layer is subjected to sealing, at least a part of the decorative layer to be sealed is bonded to a sealing material. An architectural panel having a film formed thereon. 2. The building panel according to claim 1, wherein the decorative layer is a fluororesin coating film, an acrylic resin electrodeposition coating film or a ceramic coating film.