JP2556455B2 - Laminated board material - Google Patents

Description

TECHNICAL FIELD The present invention relates to a laminated plate material that can be used for windows, doors, partitions, daylighting, lighting, and the like.

[Prior Art] Various translucent materials are used for windows, doors, partitions, lighting, lighting, and the like.

Among them, stained glass is a typical example. However, stained glass is fragile and expensive, so an alternative is needed.

As a substitute, a transparent plastic plate, a colored transparent plastic plate, a printed transparent plastic plate, a transparent plastic plate having a protective coating on the printed surface, a translucent colored FRP plate, etc. are known.

Conventionally, for windows, doors, partitions, lighting, lighting, etc., transparent plastic plate, colored transparent plastic plate, printed transparent plastic plate, transparent plastic plate with a protective coating on the printed surface, translucent Various translucent materials such as color FRP plates are known.

Also. In order to make the appearance more preferable, printing is performed on one side or both sides, coloring, patterning, or the like, and a skin layer is provided to protect the surface.

However, in either case, there is a drawback that the appearance is flat, a plurality of patterns does not give a refreshing feeling, and a simple pattern gives a high-class feeling.

[Problems to be Solved by the Invention] An object of the present invention is to provide a laminated board material having a high quality taste by giving a three-dimensional appearance to the pattern and thus to the appearance.

More specifically, it is safer and stronger than glass, and also as a building material for walls, doors, partitions, etc.
An object of the present invention is to provide a beautiful laminated board material which is also excellent as a decorative material.

[Means for Solving the Problems] The inventors of the present invention laminated three panels as shown in FIG. 1 with an intermediate layer sandwiched between two identical patterns, and laminated as shown in FIG. The present invention contemplates a laminated plate in which the same pattern is provided on the front and back of a panel and is covered with another sheet, paying attention to the fact that when the plate is formed, the same figure appears to be displaced depending on the angle, and the pattern gives a three-dimensional effect Has been completed.

The present invention is a laminated plate material comprising a transparent or translucent center layer and coating layers laminated on both surfaces thereof, wherein at least one of the both coating layers is transparent or translucent, and the coating layer on the front side. A design is provided between the core layer and the center layer and between the cover layer and the center layer on the back side, and the design on the front side and the design on the back side of the center layer are the same design.

Examples of the translucent plate material used as the central layer include polystyrene, polyacrylate, polymethacrylate, polycarbonate, polyester, polyvinyl chloride, nylon, and cellulose, and can be appropriately selected from commercially available products. It is possible to use these laminates. Other than these, any material that is transparent or semi-transparent and can have printing and adhesiveness can be used.

The central layer may be translucent, but the pattern on the opposite side must be recognizable when viewed through the coating layer, and it is preferable that it is as transparent as possible, and the light transmittance is 15% or more, preferably 70% or more. The thing of can be used suitably.

The thickness of the central layer may be appropriately determined depending on the application, but for windows and partitions, a thickness of about 0.5 to 5 mm is suitable. If it is too thin, the strength will not be sufficient and the two images will be too close together, resulting in little change, and if it is too thick, the images will be too far apart to create a sense of unity, and the total thickness of the laminate will be too large to limit its application. To be done.

The coating layer is provided to protect the print from peeling and surface damage. As the material used for the coating layer, polystyrene, polyacrylate, polymethacrylate, polycarbonate, polyester, polyvinyl chloride, nylon, cellulose and the like can be enumerated, and can be appropriately selected from commercially available materials. Any material other than these, which can be printed and have adhesiveness, can be used.

At least one of the coating layers used in the present invention needs to be transparent or translucent.

When the coating layer is translucent, it is desirable that it be translucent so that the pattern on the back side can be clearly seen.

 Therefore, this transparency also depends on the thickness of the coating layer.

For example, by making the coating layer white and translucent, it is possible to give a feeling of shoji. That is, the pattern on the back side of the white opaque thin coating layer can be clearly seen, and the pattern of the same shape on the opposite side of the center layer can be seen almost clearly, and the three-dimensional effect of the present invention appears and the decorative effect is exerted. However, since it is blocked by two translucent coating layers and objects or persons present on the opposite side of the laminated plate material of the present invention cannot be seen from each other, it is useful as a patterned translucent shielding panel in place of conventional ground glass. .

It is also preferable to use one of the coating layers as a transparent layer and the other coating layer as an opaque coating layer, because it has a different aesthetic appearance when viewed from the transparent side.

The thickness of the coating layer of the present invention can be appropriately selected depending on the application.
A thickness of about 50 μ to 1 mm is suitable.

If the coating layer of the present invention is too thin, printing or coating becomes difficult, and if it is too thick, the opposite side becomes invisible when it is translucent, and the physical properties of the central layer are impaired.

A colorless film is usually used as the coating layer, but a film colored in various colors may be used depending on the case.

In the present invention, the position where the pattern is applied is between the central layer and the covering layer. This means in particular either on the surface of the central layer or on the surface of the coating layer or by sandwiching a thin printing film between the two layers.

Essentially, it appears that there is a pattern between the layers on either surface.

Eventually, two identical patterns are placed on the front and back of the center layer. When the coating layers are one on the front and one on the back, one pattern is applied to the inner surface of the coating layer, and the other pattern is applied to the center layer or the inside of the coating layer. When applying to the central layer, the same design may be applied to both of the two patterns, but when applying to the covering layer on the opposite side, it is necessary to apply one of the designs and a symmetrical design. Thus, it is inconvenient that two printing patterns are required because two printing original plates are required, so it is desirable to carry out the present invention with one type of design.

Further, one or more auxiliary layers can be further laminated outside the basic center layer and inside the covering layer. In this case, the laminated body of the basic center layer and the auxiliary layer between the two patterns corresponds to the center layer of the present invention. For example, a front side coating layer (a pattern is printed on the inside) / a basic center layer / an auxiliary layer (a pattern is printed on the side of the coating layer) / a back side coating layer, in which case, a pattern, Both may print the same design.

As one of the preferred embodiments of the pattern printing method of the present invention, a single pattern is printed on a thin film,
This can be laminated on the surface of the coating layer or the intermediate layer by appropriately changing the front and back to form a pattern of the same shape.

As a method of printing on each layer or on the surface of the laminated printing film in the present invention, a conventionally known method can be used. For example, a method using gravure printing, screen printing, spreader roll / spray-up, etc. can be mentioned. Printing is performed with transparent, semi-transparent, or opaque ink. As the printing ink, urethane type, acrylic type, vinyl chloride type, polycarbonate type and polyester type inks are preferable. It is also possible to add an ultraviolet absorber to the printing ink.

The cover layer is adhered to the center layer by heat fusion or an adhesive. The heat fusion can be performed by using a hot roll or a sheet press. The press molding machine used here is preferably one capable of heating and cooling. The conditions for heat fusion differ depending on the resin material used, but they can be performed under normal conditions, and the pressing conditions are 100 to 195 ° C and 0 to 100 kg / cm.
It is preferably carried out at ² G. In the case of polystyrene and polymethacrylate, 180 to 210 ° C, 30 to 50 kg / cm ²
G may be pressed with a hot roll.

As the adhesive, any commonly used adhesive such as an acrylic adhesive or an epoxy adhesive can be used.

As the design applied to the laminated plate material in the present invention, various things such as a photograph, a pattern, a designed figure, a picture, a design consisting of letters, etc. can be applied. preferable. The same pattern is used on the front and back, but changing the colors of the two patterns is a preferable mode in some cases.

[Effect of the Invention] The laminated plate material of the present invention is beautiful at first glance, and since the same pattern is provided at intervals, it gives a three-dimensional feeling, and when the viewer is moving. The pattern shift changes slightly, creating the illusion that the figure has moved.
Since it is a very new decoration material, it is very useful as a window, a bathroom door, a partition, a partition, a lighting fixture, and the like.

In addition, by combining with a semi-transparent coating layer, a double pattern with a high-grade, astringent color tone as a background can be seen, and a laminated board material suitable for a screen panel or the like can be obtained, which can be used for a wide range of purposes. There are advantages.

[Examples] The present invention will be described in more detail with reference to Examples, but the present invention is not limited to these exemplifications.

Examples 1 to 7 The laminated plate material of the present invention was manufactured with the center layer and the coating layer made of various materials.

Each of the coating layer, auxiliary layer or center layer was printed with a pattern designing a landscape by screen printing so that the patterns would not be displaced or they were staggered and bonded. In Examples 1 to 5 and Example 8, front and back designs were printed with left and right symmetrical designs. In Examples 6 and 7, the same pattern was printed and used.

 Table 1 shows the results.

[Brief description of drawings]

FIG. 1 is a perspective view showing how to stack three basic layers constituting a laminated board material of an embodiment of the present invention, and FIG. 2 is a perspective view of the laminated board material of the same embodiment of the present invention. Reference numerals in the drawing are 1; center layer, 2; front coating layer, 3; back coating layer.

Claims (1)

(57) [Claims] 1. A laminated plate material comprising a transparent or translucent center layer and coating layers laminated on both surfaces thereof, wherein at least one of the both coating layers is transparent or translucent, and the front side coating. A design is provided between the layer and the center layer and between the cover layer and the center layer on the back side, and the design on the front side and the design on the back side of the center layer are the same design.