KR100614214B1 - Method for manufacturing gront pannel of the fire door using vaccum plating resin sheet and the front pannel thereof - Google Patents

Abstract

In the present invention to form a decorative portion of the front panel used as a decorative panel of the fire door, various materials such as PP, PE, PC, PSP, PVC, etc. without using the decorative thin plate used for the decorative portion of the front panel as a metal sheet A vacuum deposition layer using powdered aluminum, gold, silver, stainless steel, tungsten, or zinc powder is formed on one surface of a synthetic resin sheet, and a coating layer is formed on the surface of the vacuum deposition layer and used as a decorative sheet of the front panel. By doing so,

The low cost synthetic resin sheet is used to reduce the cost, as well as use a sheet with an extremely thin thickness, that is, a thickness of 0.2 mm or less, so that a step can hardly occur and a smooth surface can be obtained. It is possible to express various colors peculiar to metals, and it is possible to express a variety of textures by arbitrarily adding scratches to the vacuum deposition layer, and if necessary, paint layers of various colors that cannot be represented by metal on the surface of the vacuum deposition layer. And to form a coating layer to protect it to provide a high quality beautiful fire door front panel,

In addition, by supplementing the weakness of the resin sheet through the metal vacuum deposition layer, while improving the flame resistance, heat resistance as well as cold resistance and durability, by attaching a resin sheet excellent in ductility according to the shape of the various bends and irregularities formed on the front panel itself Since the decorative part can be formed, the application range is very wide regardless of the kind, characteristics, and shape of the front panel, so that the front panel for the fire door having the decorative part that expresses excellent decorative effect and various luxurious textures and colors is provided. It is possible.

Fire door, front panel, paint layer, decorative resin sheet, heat resistant sheet paper, coating layer, paint layer

Description

Manufacturing method of front door for fire door using decorative resin sheet vacuum-deposited and front door for fire door with decorative resin sheet {Method for manufacturing gront pannel of the fire door using vaccum plating resin sheet and the front pannel}             

1A to 1H are explanatory diagrams for each manufacturing process of the front panel for a fire door.

Figure 1a is an overall view of the front panel before processing on a metal plate

1B is a perspective view of a state in which a heat resistant sheet paper is formed on one side of a decorative member

Figure 1c is a state attached to a decorative member having a heat-resistant sheet paper on one side of the front panel

1D is a state in which the heat-resistant sheet of paper other than the pattern is removed from the decorative member

Figure 1e is a front view of the front panel with the heat-resistant sheet of paper other than the pattern is removed

Figure 1f is a state in which the coating on the entire surface of the front panel while the decorative member is attached

1G is a state diagram of removing a heat-resistant sheet of a pattern shape from a painted front panel

Figure 1h is an overall view of the front panel completed through the heat treatment

Figure 2 is an overall view of the fire door completed by the manufacturing method of Figures 1a to 1h

Figure 3 is a perspective view of the main portion of the decorative member according to the present invention

Figure 4 is another embodiment of the decorative member according to the present invention

<Description of the symbols for the main parts of the drawings>

10: decorative member 11: resin sheet

12: vacuum deposition layer 13: coating layer

14: paint layer

100: front panel 101: paint layer

102: heat resistant sheet paper

The present invention is to form a decorative portion of the front panel used as a decorative panel of the fire door, by using a very thin synthetic resin of about 0.2mm or less having a vacuum deposition layer on one surface, the metal by the cost reduction and vacuum deposition surface In addition to expressing the unique color, various textures can be expressed by the scratch surface of the surface, and color that cannot be expressed by metal can be represented by a separate paint layer. The present invention relates to a method of manufacturing a front door for a fire door using a vacuum-deposited decorative resin sheet that enables realization and more luxurious and diverse production, and a front door for a fire door having the decorative resin sheet.

In general, various steel fire doors installed at the entrance of a building are formed by bending steel plates into a desired shape to make a front plate and a back plate, and welding the reinforcements corresponding to each other on the back and front surfaces of the front plates facing each other, and then tightening the reinforcement materials. The fire door is manufactured by combining the front plate and the back plate, and the fire door is mounted on a door frame composed of vertical and spaced apart spaces, and vertical frames extending vertically at respective ends of the top and bottom.

The front panel of such a fire door forms a variety of decorative parts to escape the monotony of the fire door, while obtaining a more elegant and beautiful aesthetic.

In the conventional method of forming a decorative part on the front panel of the fire door, a method of perforating a decorative hole on the front panel and applying a metal steel sheet to it to express metal texture and color, and bending the front panel to form a bent portion The main method is to insert the MDF molding and the metal steel sheet thereby forming a decorative part having a metal texture and color.

However, in the method of decorating the front panel for fire doors as described above, the method of forming the decorative part by perforation requires a high level of work requiring the perforation of each metal front panel by a large press device. The work process is very demanding and dangerous because it is necessary to attach or weld a metal steel sheet, and it is difficult to manufacture fire doors with more various forms of decoration because technical and economic constraints are involved in forming perforations having various shapes and designs. This is because, since the thickness line of the decorative hole by the perforation is exposed as it is, there is a problem in that it does not form a smooth surface in appearance.

In addition, the fire doors manufactured by inserting the steel plate into the banding of the front panel and the bending portion thereof must also undergo a complicated and difficult process for bending the front panel, and also after inserting the molding member or the steel sheet into the bending receiving portion, It is very difficult to get a high quality and uniform product because it has to be finished with silicone finish.

The front panel of the completed fire door is exposed to the bending line and the parting line of the metal sheet as it is not smooth in appearance.

In particular, the conventional method of forming a fire door front panel as described above is because the design of the decorative part is processed by perforation or banding, the shape of the pattern is very monotonous, and excessive manufacturing costs are required to form a complex and various designs. There is an unreasonable problem.

Therefore, as in the 2004 patent application No. 19145 issued by the applicant of the present invention, in forming a decorative portion of the front panel for fire doors, a flat plate which does not process a decorative sheet with heat-resistant sheet paper having a variety of designs freely formed The entire front panel is coated with electrostatic powder in the state attached to the front panel in the form, and the coating is heat treated and cured, and then the pattern heat-resistant sheet paper attached to the decorative sheet is removed so that the exposed pattern of the decorative sheet is coated with decorative sheet. By expressing the texture and the color that it has,

Various types of patterns on the front panel, or even patterns that are relatively difficult to express, can be easily expressed by using heat-resistant sheet paper and decorative thin plates with thin thickness. By not having to drill or bend a part, the manufacturing process of the pattern on the front panel of the fire door is simplified and further, it provides a high quality and beautiful fire door,

The decorative thin plate attached to the front of the front panel can be applied to stainless steel plate, gold plated metal plate or silver plated metal plate, general metal plate, aluminum plate, etc. with various textures and colors. A method of manufacturing a front panel that enables manufacturing a fire door having color and a fire door having the front panel has been proposed.

However, since the metal sheet used to form the decorative portion of the front panel as described above uses a metal material having a relatively high-quality color and texture, it costs more than necessary, and the metal sheet is inferior in ductility. If the front panel for the fire door is not flat, the work is very difficult because one side is lifted or the adhesive part is easily dropped. Especially, when the front panel is formed with irregularities or wavy three-dimensional patterns, the metal sheet can be applied. There is no structural deficiency.

In addition, even if a thin metal sheet having an extremely thin thickness is used, there is a limit value for forming a thin plate due to the unique material properties of the metal. Therefore, in some cases, a separate additional step is required to conceal the edge of the metal sheet. If this is not done, the flaw is exposed such that the smooth surface cannot be obtained due to the step difference between the metal sheet and the front panel.

The present invention was developed in order to solve the problems as described above, but apply a method of manufacturing a front panel for the front door for fire protection, PP, PE without using a decorative sheet used for the decorative portion of the front panel as a metal foil On the surface of synthetic resin sheet such as PC, PSP, PVC, etc., a vacuum deposition layer using powdered aluminum, gold, silver, stainless, tungsten, zinc, etc. is formed, and a coating layer is formed on the surface of the vacuum deposition layer and the front panel is formed. To be used as a decorative sheet for

Inexpensive synthetic resin sheets are used to reduce costs and use sheets with an extremely thin thickness, that is, 0.2 mm or less, so that there is almost no step difference and a smooth surface can be obtained. It is possible to express a variety of colors unique to the metal from the layer, while randomly adding scratches to the vacuum deposition layer to enable a variety of textures, and if necessary, a variety of colors that can not be expressed in metal on the surface of the vacuum deposition layer It is an object of the invention to provide a high-quality beautiful fire door front panel by forming a coating layer and a coating layer for protecting it.

In addition, by supplementing the weakness of the resin sheet through the metal vacuum deposition layer, while improving heat resistance, cold resistance, and durability, the decorative part is attached by attaching a resin sheet having excellent ductility according to various bends or irregularities formed on the front panel itself. Since it can be formed, regardless of the type, characteristics, and shape of the front panel, the application range is very wide to provide a fire door having a decorative part that expresses excellent decorative effects and various luxurious textures and colors as it is.

Hereinafter, preferred embodiments of the present invention will be described.

First, looking at the process-specific order for producing a front door for a fire door according to the present invention,

Attaching a heat-resistant sheet of paper, the pattern of which is designed to be formed on the front panel, by a cut line, to one side of a decorative member having the same size;

Attaching a decorative member with heat resistant sheet paper to the front panel of a metal material;

Removing unnecessary parts of the heat-resistant sheet paper other than the designed pattern from the decorative member attached to the front panel;

Coating the entire surface of the front panel with electrostatic powder coating with a decorative member attached thereto;

Heat-treating the coated front panel at a temperature of about 150 ° C;

Removing the heat-resistant sheet paper attached in the form of a designed pattern from the front panel in the first heat-treated state,

While the heat-resistant sheet for protecting the pattern is removed, the entire front panel is subjected to a second heat treatment at a temperature of about 230 ° C.

The decorative member may be any one of PP, PE, PC, PSP and PVC, and any one of powdered aluminum, gold powder, silver powder, stainless powder, tungsten powder, and zinc powder may be vacuum-deposited. It is obtained by performing a deposition process by, and forming a transparent coating layer on the surface of the vacuum deposition layer again.

At this time, by forming a coating layer having various colors on the vacuum deposition layer prior to forming the coating layer, it is possible to express a variety of colors that can not be expressed by the metallic material color,

Prior to forming the coating layer, by further performing a process of forming a scratch surface on the surface of the vacuum deposition layer, it is possible to express the texture unique to the metal.

The front panel is completed by the manufacturing method of the front panel for fire doors,

The decorative member 10 attached to the heat-resistant sheet paper 102 having a design designed as the front of the fire door front panel 100 is attached,

A coating layer 101 is formed on the entire surface of the front panel 100 including the decorative member 10 by electrostatic powder coating.

The heat-resistant sheet paper 102 attached to the front surface of the decorative member 10 is peeled off from the decorative member so that the unpainted surface of the decorative member 10 which is not coated by the heat-resistant sheet paper 102 is applied to the decorative member. To expose the texture or color as it is,

The decorative member 10 is any one of the resin sheet 11 made of PP, PE, PC, PSP, PVC, powder aluminum, gold powder, silver powder, stainless powder, tungsten powder, The vacuum deposition layer 12 which selected any one of the zinc powders is comprised,

A transparent coating layer 13 is formed on the surface of the vacuum deposition layer 12.

In addition, the coating layer 14 may be coated on the surface of the vacuum deposition layer 12 to form various colors.

The manufacturing method of the fire door front panel using the decorative member as described above and the operation sequence for each process for obtaining the front panel having the decorative member will be described in more detail.

First, the operation sequence for each process described below is described in detail by 2004 Patent Application No. 19145, filed by the applicant of the present invention, so a part of the manufacturing process will be briefly described.

In order to complete the front panel for the fire door according to the present invention, the decorative member 10 for expressing the decorative portion on one side of the front panel 100 of a predetermined size, as shown in Figure 1a shown in Figure 1c Form it together,

The heat-resistant sheet paper 102 is attached to the decorative member 10 as shown in FIG. 1B, and the heat-resistant sheet paper 102 has a pattern for forming a decorative part by a computer pattern by an incision line. It is designed.

Therefore, in the state in which the decorative member 10 with the heat resistant sheet paper 102 having the pattern formed thereon is attached to one side of the panel member as described above, an unnecessary portion except for the pattern of the heat resistant sheet paper 102 described above. When it is peeled off as shown in FIG. 1D, only partial heat-resistant sheet paper 102 remains on the surface of the decorative member 10 as shown in FIG. 1E according to the shape of the pattern.

In this state, the coating layer 101 is formed on the entire surface of the front panel 100 by electrostatic powder coating as shown in FIG. 1F, and the coating layer 101 is the entire surface of the front panel 100. And is formed on the surface of the decorative member 10, the surface of the decorative member 10 located on the lower surface of the heat-resistant sheet paper 102 is an unpainted portion that is not formed by the sheet is formed.

At this time, the electrostatic powder coating is followed by the constraint that the base material must be a metal material, while the decorative member 10 is a synthetic resin material, it is thought that the powder coating is not made, but the decorative member 10 is Since it has an extremely thin thickness of about 0.2mm, if +,-current is applied to the metal front panel 100, and static electricity is generated, even if the resin sheet is a non-conductive sheet, the front panel 100 is extremely thin. It is influenced by the static electricity of the powder coating on the surface in the form of indirect powder coating using the static electricity of the front panel.

In this state, the coating layer 101 is formed to perform a first heat treatment at a temperature of about 130 ° C. to 170 ° C. so that the coating layer 101 is cured and fixed. Since at least 200 ℃ has a heat resistance that can withstand without changing the physical properties, the first heat treatment is possible without changing the sheet.

When the heat-resistant sheet paper 102 remaining as shown in FIG. 1G is peeled off in this heat treatment state, the decorative member 10 is exposed as the decorative member 10 is exposed as the design pattern by the heat-resistant sheet paper 102 is exposed. Will be.

In this state, the second heat treatment of the coating layer 101 at a high temperature of about 210 ° C. to 250 ° C. causes the coating layer to be more hardened and fixed, thereby completing the front panel as shown in FIG. 1H.

Therefore, the front panel 100 is assembled as shown in FIG. 2 to complete the fire door.

At this time, the decorative member 10 is a synthetic resin sheet having a thin thickness of at least 0.2mm or less, the resin sheet 11 is PP (polypropylene), PE (polyethylene), PC (polycarbonate), PSP (polystyrene) paper), PVC (polyvinyl chloride) or any one of the powdered aluminum, gold powder, silver powder, stainless powder, tungsten powder, zinc powder or any one of the metal deposition layer by vacuum deposition method. As formed, the vacuum deposition layer 12 serves to complement the flame retardant, heat resistance and cold resistance, durability, which is a material weakness of the synthetic resin, and at the same time by the metal vacuum deposition layer 12 having a variety of colors As the various colors peculiar to a metal are just expressed,

 As is well known, the vacuum evaporation method involves placing an object to be coated and particles of a metal to be attached to the surface in a container placed in a high vacuum, and then evaporating the metal particles by applying a current to a heater to heat it. It is a method of attaching the epidermis by condensation and attaching to the surface, and it can be applied to all articles, so that it is possible to form a metal deposition layer of various colors on the resin sheet 11 of synthetic resin. .

In particular, by forming a separate transparent coating layer 13 on the surface of the vacuum deposition layer 12 of the decorative member 10, the coating layer 13 to prevent the deposited portion from being peeled off or damaged by scratches, etc. As shown in FIG. 3, the vacuum deposition layer 12 is formed on the surface of the resin sheet 11, and the coating layer 13 is formed on the top thereof.

At this time, prior to forming the coating layer 13, if the scratch surface is optionally formed on the surface of the vacuum deposition layer 12 may be obtained with a unique texture of the metal and the same texture as the actual cross-section of the metal It is possible to express a variety of colors and textures, such as the expression of the cross-sectional texture of the metal material by repeated scratches, as well as the expression of the unique texture of the metal by the disorderly scratch naturally.

In addition, before the coating layer 13 is formed, a separate paint layer 14 is formed on the surface of the vacuum deposition layer 12, whereby a variety of colors cannot be represented by the vacuum deposition layer 12. The color that can be expressed by vacuum evaporation is limited to the metal powder, and thus the color of the more colorful color cannot be expressed. As shown in FIG. 4, the color of the evaporation layer 12 is gorgeous. If the coating layer 14 is formed separately and then the coating layer 13 is formed on the surface, it is possible to express a variety of colors.

At this time, the reason for forming the coating layer 14 on the surface of the vacuum deposition layer 12 as described above, if the coating layer 14 is formed without forming the vacuum deposition layer 12, the resin sheet 11 Since only the characteristics of) remain, the heat resistance and cold resistance, flame retardancy, and durability are greatly reduced, so it is more ideal that the paint layer 14 is formed on the surface of the vacuum deposition layer 12 which is also used for the purpose of supplementing it.

Therefore, the decorative member as described above can be freely expressed in a variety of textures and colors as well as the design of the design at a low cost, it is possible to mass-produce a simple and various fire doors to escape from the limited and complicated production techniques ,

Even if various bends or irregularities are formed on the front panel for the fire door, the decorative member 10 having excellent ductility can be attached to be in close contact with the curved or uneven surfaces, so that the decorative member 10 can be three-dimensionally decorated without lifting or falling. It is possible to produce wealth, and because it is a synthetic resin sheet with little heat conduction, it is possible to expect an additional effect of minimizing the influence of cold air from the outside into the room.

The manufacturing method of the front panel for fire doors using the vacuum-deposited decorative resin sheet of the present invention as described above, and the front panel for fire doors having the decorative resin sheet, because it uses a low-cost synthetic resin sheet, cost reduction as well as extremely thin thickness, that is 0.2 Since a sheet having a thickness of mm or less is used, a step is hardly generated so that a smooth surface can be obtained. The vacuum deposition layer can be used while expressing various colors unique to the metal from the vacuum deposition layer made of a metal material while using a resin sheet. It is possible to express a variety of textures by adding a random scratch on the surface, and if necessary, paint layers of various colors that cannot be expressed with metal and coating layers to protect them are formed on the surface of the vacuum evaporation layer. Panel can be provided,

By supplementing the weakness of the resin sheet through the metal vacuum deposition layer, it is possible to form a decorative part by attaching a resin sheet having excellent ductility according to various bends or irregularities formed on the front panel itself while improving heat resistance, cold resistance and durability. Therefore, it is possible to provide a front panel for fire doors having a decorative part that expresses excellent decorative effects and various luxurious textures and colors without affecting the type, characteristics, and shape of the front panel.

Claims (5)

Attaching a heat-resistant sheet of paper, the pattern of which is designed to be formed on the front panel, by a cut line, on one side of a decorative member having the same size; Attaching a decorative member having heat resistant sheet paper to the front panel of the metal material; Removing unnecessary portions of the heat resistant sheet paper other than the designed pattern from the decorative member attached to the front panel; Coating the entire surface of the front panel by electrostatic powder coating with a decorative member attached thereto; Heat-treating the coated front panel at a temperature of 150 ° C .; Removing the heat-resistant sheet paper attached in the form of a designed pattern from the front panel in the primary heat-treated state; While the heat-resistant sheet for protecting the pattern is removed, the entire front panel is subjected to a second heat treatment at a temperature of 230 ° C. The decorative member may be any one of PP, PE, PC, PSP, and PVC, and the resin sheet may be one selected from powder aluminum, gold powder, silver powder, stainless powder, tungsten powder, and zinc powder. To perform a deposition process by a vacuum deposition method, and to form a transparent coating layer on the surface of the vacuum deposition layer, the method of manufacturing a front panel for a fire door using a vacuum-deposited decorative resin sheet. The method of claim 1, Prior to forming the coating layer of the decorative member, by further performing the process of forming a coating layer having a variety of colors on the vacuum deposition layer, it is possible to express a variety of colors that can not be expressed by the metallic color vacuum deposition Method of manufacturing the front panel for the fire door using the decorative resin sheet. The method of claim 1, Prior to forming the coating layer of the decorative member, by further performing a process of forming a scratch surface on the surface of the vacuum deposition layer, for the fire door using a vacuum-deposited decorative resin sheet characterized in that the texture of the metal is expressed How to make the front panel. The decorative member 10 attached to the heat-resistant sheet paper 102 having a design designed as the front of the fire door front panel 100 is attached, A coating layer 101 is formed on the entire surface of the front panel 100 including the decorative member 10 by electrostatic powder coating. The heat-resistant sheet paper 102 attached to the front surface of the decorative member 10 is peeled off from the decorative member so that the unpainted surface of the decorative member 10 which is not coated by the heat-resistant sheet paper 102 is applied to the decorative member. In the decorative panel for fire doors configured to express the texture or color as it is, The decorative member 10 is any one of the resin sheet 11 made of PP, PE, PC, PSP, PVC, powder aluminum, gold powder, silver powder, stainless powder, tungsten powder, The vacuum-deposited decorative resin, characterized in that any one of the zinc powder is selected, and the vacuum deposition layer 12 formed by vacuum deposition is formed, and the transparent coating layer 13 is formed on the surface of the vacuum deposition layer 12. Front panel for fire door with seat. The method of claim 4, wherein The front panel for a fire door having a vacuum-deposited decorative resin sheet, characterized in that the coating layer 14 is formed on the surface of the vacuum deposition layer (12) by coating to form a variety of colors.

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