JP2527415B2 - Laminated plate material and manufacturing method thereof - Google Patents

Description

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

[Prior Art] Conventionally, various translucent materials have been 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.

Further, 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, the appearance is flat, and if the pattern is complicated, there is no refreshing feeling, and if the pattern is simple, there is a disadvantage of giving 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-class taste and a method for manufacturing the same 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 plate material excellent as a decorative material and a method for producing the same.

[Means for Solving the Problems] The present inventors make a pattern a positive image and a negative image, and superimpose them on each other with a transparent or translucent center layer sandwiched between them, thereby giving a aesthetic impression that has not been achieved by conventional materials. The present invention has been completed, focusing on the fact that it is possible.

The present invention is a positive-negative laminated board material. When a positive image and a negative image are overlapped and slightly shifted or a transparent material is sandwiched between them and seen from the side a little, two patterns emerge and a mysterious aesthetic is created.

The present invention comprises a transparent or semi-transparent central layer and coating layers laminated on both surfaces thereof, and at least one of the both coating layers is transparent or semi-transparent.

Examples of the transparent plate material used as the central layer include polystyrene, polyacrylate, polymethacrylate, polycarbonate, polyester, polyvinyl chloride, nylon, and cellulose, which can be appropriately selected from commercially available products. Also, a laminate of these can be used. In addition to these materials, 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 materials other than these that 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 semi-transparent, it is desirable that it is semi-transparent so that the pattern on the back surface 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 thin white opaque coating layer can be clearly seen, and the pattern of the same shape on the reflection side of the central layer can be seen almost clearly, and the three-dimensional effect of the present invention appears to exert a decorative effect. However, since it is blocked by two translucent coating layers and objects or persons present on the reflection 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 instead of the 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 for 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 design is applied can be appropriately determined, but it is preferably between the central layer and the coating 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 positive and negative pictures are placed on the front and back of the central layer. In the case where the coating layer is one on each of the front and back sides, when the positive design is applied to the inner surface of the coating layer, the negative design is applied to the center layer or the inside of the coating layer. When applied to the central layer, the two patterns may have the same orientation, but when applied to the coating layer on the opposite side, it is necessary to apply a positive pattern and a symmetrical negative pattern.

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, front side coating layer (a pattern (a positive image) is printed on the inside) / basic center layer / auxiliary layer (a pattern (a negative image) is printed on the coating layer side)
/ Back cover layer, which in this case is a design,
Both may be printed in the same direction.

The printed surface may be exposed to the outside, but if the surface becomes soiled during use, the printing may be peeled off by wiping the surface, so that it is preferable to have a coating layer on the outer surface.

As a method for printing on each layer or on the surface of the laminated printing film in the present invention, it can be carried out by a conventionally known method. For example, a method using gravure printing, screen printing, spreader roll / spray-up, etc. can be mentioned. For the design, take a positive from the negative for the photograph. And with this, each makes a plate. Then, from negatives, we make positive plates and from positives, negative plates.

In this case, printing can be performed with transparent, semi-transparent, or opaque ink.

It is also possible to add an ultraviolet absorber to the printing ink.

The cover layer is adhered to the central layer by heat fusion or an adhesive. The conditions for heat fusion vary depending on the resin material used, but can be performed under normal conditions. 180 to 210 ℃ for polystyrene and polymethacrylate, 30
Or 50 kg / cm ² · G, and press 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 composed of characters, etc. can be applied. preferable. The pattern used is exactly the same on the front and back and the relationship between the positive image and the negative image is used, but changing the colors of the two patterns is a preferable mode in some cases.

The patterns do not necessarily have to be aligned with each other, and the patterns can be laterally shifted, or one of the patterns can be rotated by an appropriate angle of 180 ° and stacked.

[Effects of the Invention] In the laminated plate material of the present invention, the positive image and the negative image are averaged and the ink is evenly spread over almost the entire surface. Therefore, when viewed from the front, there is no transparent portion, and the light amount averaged over the entire surface passes. When the colors of the positive image and the negative image are changed, it is effective that one of the designs, for example, the other of the human figure looks like a background.

The laminated plate material of the present invention is beautiful at first glance, and since a positive image and a negative image of the same pattern are provided at intervals, a three-dimensional feeling is given, and when the viewer is moving, The pattern shifts subtly change to give the illusion that a figure has moved, and it is a very new decoration material, so it is very useful as a window, bathroom door, partition, partition, lighting equipment, etc.

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.

A pattern was printed on each coating layer, auxiliary layer or center layer by screen printing. The design was created and printed as follows.

First, a photograph of a design to be printed was taken, a negative film of the same was made, and then the negative film was inverted to form a positive film. Next, a positive plate for printing was made from the negative film, and a negative plate was made from the positive film.

Subsequently, a pattern was printed on the inside of the cover layer on the front side in one color using a positive plate. Further, a pattern was printed on the central layer side or the central layer side of the backside coating layer in the same or different color as the positive image using a negative image plate. At this time, the printing plate precursor was prepared so that the directions of the patterns were the same when the laminated plate materials were stacked.

Only in Example 10, a printing plate was prepared by rotating the negative image by 90 ° with respect to the positive image.

The printed layers were adhered to each other according to the intended design to form a laminated plate material.

 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 (2)

(57) [Claims] 1. A laminated sheet material comprising a transparent or semitransparent center layer and coating layers laminated on both sides thereof, wherein at least one of the both coating layers is transparent or semitransparent, and both sides sandwich the central layer. On the laminated board material with the pattern, the positive plate for printing and the negative plate are made from one original image, the pattern printed with the positive plate is applied on one side of the center layer, and the negative side is printed on the other side of the center layer. A laminated board material characterized by having a design printed on a plate. 2. A transparent or semi-transparent center layer and a coating layer laminated on both surfaces thereof, and at least one of the both coating layers is transparent or semi-transparent, and a pattern is provided on both sides of the central layer. In the manufacturing method of laminated plate material, a positive plate for printing and a negative plate for printing are made from one original image, a pattern printed with the positive plate is applied to one surface of the central layer, and a negative plate is printed on the other surface of the central layer. A method for manufacturing a laminated board material, which is characterized in that a pattern printed in step 1 is applied.