JPH0511180U - Decorative adhesive sheet and illuminated signboard - Google Patents

Abstract

(57) [Summary] [Purpose] To obtain a decorative pressure-sensitive adhesive sheet capable of exhibiting decorative effects of different color tones depending on reflected light and transmitted light. [Structure] At least one opaque decorative resin layer 3 embedded in the colored transparent or colored semitransparent resin layer 2 so as to be exposed on one surface of the colored transparent or colored translucent resin layer 2, and the colored transparent or colored semitransparent resin layer 3. A decorative pressure-sensitive adhesive sheet 1 having a pressure-sensitive adhesive layer 4 formed on the other surface of a transparent resin layer 2.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

  The present invention relates to a decorative pressure-sensitive adhesive sheet and an electric signboard, and in particular, it is observed by transmitted light. Ornamental adhesive that can exert different decorative effects depending on whether it is viewed or reflected light. A dressing sheet and an illuminated signboard.

[0002]

[Prior art]

  Various decorative adhesive sheets have been proposed in the field of outdoor decoration such as illuminated signboards. It   For example, a transparent resin layer should be laminated on a white resin layer containing a titanium-based pigment. Reflected light type decorative sheet, a reflected light / transmitted light type decorative sheet consisting of a colored transparent resin layer only. A known type is a reflected light / transmitted light type decorative sheet made of a colored translucent resin layer. It Note that the reflected light type decorative sheet means that the color of the decorative portion is based on the reflected light. The transmitted light type decorative sheet is one side of the decorative sheet. And the decoration illuminated by the light is transmitted through on the opposite side of the decorative sheet. It is a decorative sheet configured to be observed by human eyes by light. Also, anti The light-transmissive / transmissive decorative sheet has both the above-mentioned reflective and transmissive mechanisms. The decoration is what is seen by the human eye.

[0003]   On the other hand, the illuminated signboard is decorated on the outer surface of a milky white translucent synthetic resin plate such as an acrylic plate. A signboard body with an adhesive sheet attached to it is used to store a lighting device such as a fluorescent lamp. Have structure. In the daytime, the decorative effect of the decorative sheet is generated based on the reflected light from the sunlight. The decoration effect is exhibited based on the transmitted light from the internal lighting device at night. . As the decorative pressure-sensitive adhesive sheet in such an electric signboard, the above-mentioned and The reflected light / transmitted light type decorative sheet consisting only of the colored transparent resin layer and the colored translucent resin layer A reflective light / transmissive light type decorative sheet consisting of a simple substance with an adhesive layer is used. Was there.

[0004]

[Problems to be solved by the device]

  The conventional decorative pressure-sensitive adhesive sheet has a colored transparent resin layer laminated on a white synthetic resin layer. It is a reflected light type decorative sheet, which can be used as a decorative sheet only by reflected light. I didn't get it.   Also, the reflected light / transmitted light type decorative sheets of and are respectively colored transparent resin layers. Alternatively, since it is composed of only a semi-transparent resin layer, it is Depending on the reflected light or the transmitted light, it may have different decorative effects. Even if they were combined, they only provided the same decorative effect.

[0005]   In other words, different decorative effects are exhibited depending on the reflected light and the transmitted light. A decorative pressure sensitive adhesive sheet that does not exist in the past.   An object of the present invention is to exert different decoration effects depending on reflected light and transmitted light. An object is to provide a decorative pressure-sensitive adhesive sheet and an electric signboard that enable it.

[0006]

[Means for Solving the Problems]

  The invention according to claim 1 of the present application provides a colored transparent or colored translucent resin layer and Colored transparent or colored semi-transparent resin layer At least one opaque decorative resin layer embedded in the semi-transparent resin layer; Provided with a transparent pressure-sensitive adhesive layer provided on the other surface of the transparent or colored translucent resin layer. It is a decorative adhesive sheet.

[0007]   The invention according to claim 2 is to illuminate a semitransparent resin plate illuminated by an illumination device. On an illuminated signboard with a decorative adhesive sheet attached to the surface opposite to the exposed side. Of the colored transparent or colored translucent resin layer and the colored transparent or colored translucent resin layer The first pressure-sensitive adhesive layer laminated on one surface and the colored transparent layer through the first pressure-sensitive adhesive layer. Is at least one opaque decorative resin layer provided on the opposite side of the colored translucent resin layer A second adhesive formed on the surface of the opaque decorative resin layer opposite to the first adhesive layer An adhesive pressure-sensitive adhesive sheet having an adhesive layer is provided on the side of the second adhesive layer where the semi-transparent resin is used. It is an electric signboard attached to a fat board.

[0008]   In this specification, the terms “transparent” and “translucent” mean at least The underlying layer can be visually recognized by reflected light through the transparent or semi-transparent layer. It means that it has such a degree of transparency that the visible light transmittance is about 0.3 to It means that it is included in the range of 100%.   In addition, the expression "opaque" means that the underlying layer of an opaque layer is reflected by light. Means something that cannot be visually recognized, and has a visible light transmittance of 0% or 0%. It means something that is configured to be infinitely close.

[0009]

[Action]

  The decorative pressure-sensitive adhesive sheet according to claim 1, wherein at least one opaque decorative resin layer Is embedded so that it is exposed on one surface of the colored transparent or colored translucent resin layer. , When the light from the outside such as sunlight is seen by reflected light, it is colored transparent or colored. Colored pattern composed of the color of the opaque resin layer itself in the background composed of the semitransparent resin layer Is observed. On the other hand, when it is observed with transmitted light when it is attached to an illuminated signboard, etc. Means that at least one opaque decorative resin layer does not have a light-transmitting property. Only the decorative resin layer becomes the dark part, and the colored transparent or colored translucent resin layer around it becomes the illumination. To exhibit a bright colored area. In other words, when viewed with reflected light and when viewed with transmitted light. Different decorative feelings can be obtained depending on the case.

[0010]   Also, with the illuminated signboard according to claim 2, when observing with reflected light in the daytime, At least one opaque decorative resin as a base through a color transparent or colored translucent resin layer The layers are visible. Therefore, in reflected light, at least one opaque decorative resin layer A background with a colored transparent or colored translucent resin layer is displayed around the colored pattern. A feeling of decoration is given. On the other hand, at night, the lighting device inside the illuminated signboard is turned on and When observing the coated sheet with transmitted light, the opaque decorative resin layer does not have a light-transmitting property and serves as a hiding layer. Since the opaque decorative resin layer is formed into a dark portion, The surrounding area has a bright color pattern because light passes through the colored transparent or colored translucent resin layer. Get Therefore, there is a different decorative feeling depending on whether it is viewed with reflected light or transmitted light. An illuminated signboard that gives

[0011]

[Explanation of Examples]

Hereinafter, non-limiting examples of the present invention will be described. First Embodiment FIG. 1 is a partially cutaway sectional view showing a decorative pressure-sensitive adhesive sheet according to an embodiment of the present invention. In the decorative pressure-sensitive adhesive sheet 1 of this embodiment, a plurality of opaque decorative resin layers 3 are embedded so as to be exposed on one surface 2a of the colored transparent or colored translucent resin layer 2. Further, a transparent adhesive layer 4 is formed on the other surface 2b side of the colored transparent or colored translucent resin layer 2. The colored transparent or colored semi-transparent resin layer 2 and the opaque decorative resin layer 3 exhibit the functions described below depending on their respective transparency and color. Therefore, the colored transparent or colored semi-transparent resin layer 2 and the opaque resin layer 3 can be made of any resin material as long as the transparency and color described later can be realized. For example, vinyl chloride, polyolefin, polyethylene terephthalate, etc. The thermoplastic resin may be used, but from the viewpoint of moldability, vinyl chloride which can be casted is particularly preferable.

[0012]   In the decorative pressure-sensitive adhesive sheet 1 of this example, the colored transparent or colored translucent resin layer 2 is It is necessary that the light transmitted from the adhesive layer 4 side is transmitted, and therefore It is configured so that the transmittance of visible light is in the range of about 0.3 to 100%. The other The opaque decorative resin layer 3 includes the adhesive layer 4 and the colored transparent or colored translucent resin layer 2. It must be configured to block the light that has passed through it, and therefore visible light. To 0% or 0% as much as possible.

[0013]   Further, the colored transparent or colored translucent resin layer 2 needs to be colored. Therefore, perylene, isoindoline, polyazoquinac Organic pigments with excellent weather resistance such as redone and cyanine are blended. The amount of pigment is , 1 to 10% by weight, preferably 2 to 3% by weight, relative to 100% by weight of the above resin It is said to be about%. In addition, in the case of making it semi-transparent, in addition to the above organic pigment, Titanium oxide may be added in an amount of 2 to 3% by weight. In any case, colored transparent or colored The semitransparent resin layer 2 needs to be configured to have the above-mentioned light transmittance. Therefore, in order to achieve such light transmittance, an appropriate pigment is added. Be colored.

[0014]   On the other hand, the opaque decorative resin layer 3 needs not to transmit light as described above. It Therefore, in the opaque decorative resin layer 3, the resin content is usually 100% by weight with respect to the above-mentioned resin content. And perylene, isoindoline, polyazoquinacry as organic pigments for coloring 1 to 10% by weight of dong or cyanine is added, and titanium oxide is added to 20% by weight. It is mixed in the range of 60% by weight to 60% by weight.   The color of the colored transparent or colored translucent resin layer 2 and the color of the opaque decorative resin layer 3 It is optional and can be configured to have various colors such as red, blue, green or yellow. You can

[0015]   For the material constituting the pressure-sensitive adhesive layer 4, the decorative pressure-sensitive adhesive sheet 1 is attached to the adherend. It is not particularly limited as long as it can be removed, but in order to exert the decorative effect described below, it is transparent. It is necessary to use a pressure-sensitive adhesive that has properties such as general acrylic A system adhesive, a rubber system adhesive, etc. can be used.   The thickness of the colored transparent or colored translucent resin layer 2 is usually about 50 to 80 μm. The opaque decorative resin layer 3 embedded in the colored transparent or colored translucent resin layer 2 is Usually, the thickness is about 20 to 30 μm, and the thickness of the pressure-sensitive adhesive layer 4 is usually 20 to 50 μm. It is about μm. However, for such thickness, the intended decorative effect The thickness of each layer may be set outside the above thickness range. Good.

[0016]   FIG. 2 shows the operational effects when the decorative pressure-sensitive adhesive sheet 1 of this example is used for an electric signboard. It is a partial cutaway sectional view for explaining. The illuminated signboard 5 has a translucent milky white acrylic The decorative pressure-sensitive adhesive sheet 1 of the above embodiment is attached to the outside of the rule plate 6, while A lighting device 7 such as a fluorescent lamp is built in a translucent milky white acrylic plate 6. Daytime That is, the lighting device 7 is not turned on and the illuminated signboard 5 is viewed by the reflected light of the external sunlight. Imagine the situation. In this case, the opaque decorative resin layer 3 is exposed on the outer surface Therefore, the opaque decorative resin layer 3 is visually recognized by an observer by reflected light as a color pattern. Be done. On the other hand, the colored transparent or colored translucent resin layer 2 is provided around the opaque decorative resin layer 3. Is present, the color of the colored transparent or colored translucent resin layer 2 is visually recognized by reflected light. To be done. That is, the spine produced by the colored transparent or colored translucent resin layer 2 The observer visually recognizes the decoration in which the color pattern of the opaque decorative resin layer 3 is arranged in the scene. It

[0017]   On the other hand, at night, the lighting device 7 is turned on, and the translucent milky white acrylic plate 6 is used. Light is applied to the adhesive layer 4 side of the decorative adhesive sheet 1. The adhesive layer 4 is transparent Therefore, this transmitted light passes through the pressure-sensitive adhesive layer 4 and is colored transparent or colored translucent resin. Reach layer 2. The opaque decorative resin layer 3 does not transmit light, while the colored transparent or The colored translucent resin layer 2 allows light to pass therethrough. Therefore, the portion indicated by the arrow A in FIG. That is, light does not pass through the front part of the opaque decorative resin layer 3, and In the surroundings, light is transmitted as indicated by arrow B. As a result, the opaque decorative resin layer 3 is shaped. The formed area was observed as a dark area, and its surroundings were illuminated by transmitted light. So that there is an illuminated color pattern based on the colored transparent or colored translucent resin layer 2 To be observed.   Therefore, in the decorative pressure-sensitive adhesive sheet 1 of the present embodiment, it is different depending on the reflected light and the transmitted light. It is possible to exert a decorative effect.

[0018]   Next, refer to FIG. 3 to FIG. 5 for an example of the method for producing the decorative pressure-sensitive adhesive sheet 1 of the above-mentioned embodiment. And explain.   First, as shown in FIG. 3 (a), from paper or polyethylene terephthalate, etc. Upper surface of the process paper 8 obtained by subjecting at least the upper surface of the base material to a mold release treatment with silicon or the like A discontinuous opaque decorative resin layer 3 is formed on 8a. The opaque decorative resin layer 3 is A resin solution containing a pigment forming the opaque decorative resin layer is placed on the upper surface 8a of the process paper 8. Formed by casting and drying at a temperature of 100 ° C to 150 ° C be able to. However, the opaque decorative resin layer 3 is formed in advance and the May be attached to. The planar shape of the opaque decorative resin layer 3 is arbitrary. Alternatively, they may be formed so as to form one continuous pattern.

[0019]   Next, as shown in FIG. 3B, colored transparent so as to cover the opaque decorative resin layer 3. Alternatively, the colored translucent resin layer 2 is formed. The colored transparent or colored translucent resin layer 2 is Formed by casting the pigment-containing resin solution described above and drying. .   Next, as shown in the cross-sectional view of FIG. 4, a transparent resin is formed on the colored transparent or colored semi-transparent resin layer 2. The adhesive layer 4 having lightness is formed. The adhesive layer 4 having transparency is an adhesive solution. Can be formed by applying and drying. Then, peeled off on the upper surface of the adhesive layer 4. Stick the paper 9. As the release paper 9, the surface of paper or synthetic resin film is Use the one that has been released from the pressure-sensitive adhesive layer 4 by recon, etc. so that it has releasability. Can be

[0020]   Next, the process paper 8 is peeled off and turned upside down from the state shown in FIG. In this state, the decorative pressure-sensitive adhesive sheet 1 of this embodiment is stuck on the release paper 9. (See FIG. 5). Before using, peel off the release paper 9 from the adhesive layer 4. By so doing, the decorative pressure-sensitive adhesive sheet of this embodiment may be attached to an appropriate adherend.

Second Embodiment Next, an electric signboard according to an embodiment of the invention described in claim 2 will be described with reference to FIG. The illuminated signboard 11 has a structure in which a decorative adhesive sheet 13 is attached to the outer surface of a translucent milky white acrylic plate 12, and a lighting device 14 such as a fluorescent lamp is housed in the semitransparent milky white acrylic plate 12. The feature of the present embodiment is that this decorative adhesive sheet 13 comprises, in order from the outside, a colored transparent or colored semi-transparent resin layer 15, a first adhesive layer 16, a plurality of opaque decorative resin layers 17 and a second adhesive agent. It has a structure in which layers 18 are laminated.

[0022]   The colored transparent or colored translucent resin layer 15 is the colored transparent or colored transparent resin layer of the first embodiment. It can be made of the same material as the semi-transparent resin layer 2 and can also be converted into visible light. The light transmittance with respect to it is appropriately selected within the range of about 0.3 to 100%. Get translucent In this case, the effect rate for visible light is about 0.3 to 80%, preferably 2 The haze value is in the range of 20 to 100%, preferably 90 to 10%. The range is 0%.   On the other hand, the first pressure-sensitive adhesive layer 16 and the second pressure-sensitive adhesive layer 18 are respectively formed according to the first embodiment. Like the pressure-sensitive adhesive layer 4 in the example, the pressure-sensitive adhesive layer 4 is made of a pressure-sensitive adhesive having transparency, Made of acrylic or rubber adhesive, especially acrylic adhesive with excellent weather resistance It

[0023]   The opaque decorative resin layer 17 is similar to the opaque decorative resin layer 3 of the first embodiment. This opaque decorative resin layer can be composed of Is 0% or close to 0%.   The thickness of the colored transparent or colored semi-transparent resin layer 15 is 20 to 100 μm, The thickness of each of the first and second pressure-sensitive adhesive layers 16 and 18 is preferably 10 to 50 μm. m, preferably about 30 μm, and the thickness of the opaque decorative resin layer 17 is 20 μm to 30 μm. It is about μm. However, the thickness of each of these layers depends on the intended signboard and It may be set outside the above range depending on the decorative effect.

[0024]   In addition, the color of the colored transparent or colored translucent resin layer 15 and the opaque decorative resin layer 17 Also, it is optional, and may be yellow, red, blue, green, or any other appropriate color. However, it is preferable that it is attached on the opaque milky white acrylic plate 12. Therefore, the color of the opaque milky white acrylic plate 12 which is the base is difficult to appear, that is, It is preferable to use the same white color as the transparent milky white acrylic plate.   When the opaque decorative resin layer 17 is made opaque, titanium oxide is used in addition to the pigment. It is necessary to mix them, but in this case the mixing ratio of organic pigment and titanium oxide is Although it is different, the weight ratio is in the range of about 1: 9 to 5: 5.

[0025]   Next, the function and effect of the illuminated signboard 11 of this embodiment will be described. In the daytime, the lighting device 14 Is not lit, and the decoration is observed by reflected light such as sunlight. That is, Since the colored transparent or colored translucent resin layer 15 is configured to transmit light As for the portion where the opaque decoration resin layer 17 is provided, the opaque decoration tree of the base is used. A color pattern of the oil layer 17 is observed, and a colored transparent layer is formed around the opaque decorative resin layer 17. A background based on the light or colored translucent resin layer 15 is observed.

[0026]   On the other hand, at night, the illumination device 14 is turned on and the decoration is observed by the transmitted light. That is, since the opaque decorative resin layer 17 does not transmit visible light, the opaque decorative resin layer 17 The part indicated by the arrow A in front of the part where the layer 17 is provided is viewed as a dark part. The area around the opaque decorative resin layer 17 is transparent as indicated by arrow B. The colored transparent or colored translucent resin layer 15 is observed as a bright color pattern by light. .   That is, as in the decorative pressure-sensitive adhesive sheet 1 of the embodiment shown in FIG. The decorative pattern that differs depending on the light is opaque. The decorative resin layer and the colored transparent or colored translucent tree. It is provided by a layered structure with a fat layer.

[0027]   In addition, in constructing the electric signboard 11 of the present embodiment, a decoration laminated in advance is used. A pressure-sensitive adhesive sheet 13 may be prepared, but more simply, an opaque milky white acrylic plate Opaque decorative resin layer 1 in which the second adhesive layer 18 is provided on one surface on the outer surface of 12 7 is affixed, and then the first adhesive layer 16 is formed on the other surface of the colored transparent or The colored semitransparent resin layer 15 may be attached. In this case, the first adhesive layer 1 is formed on the other surface. As the colored transparent or colored translucent resin layer 15 to which 6 is attached, conventionally It is possible to use a decorative adhesive sheet for a known electric signboard.

[0028]

[Effect of device]

  As described above, according to the decorative pressure-sensitive adhesive sheet of the invention of claim 1, the colored transparent sheet Or a colored translucent resin layer and at least one partially formed opaque decorative resin Due to the layered structure with the layers, different decorative feelings are given by reflected light and transmitted light. That is, when observed with reflected light, an opaque decorative resin layer and a colored transparent or Decorative pressure-sensitive adhesive sheet with at least two different color tones due to the colored translucent resin layer When viewed in transmitted light and observed in transmitted light, the opaque decorative resin layer becomes dark. It gives a decorative feeling with a brightly colored surrounding.

[0029]   Therefore, if the decorative pressure-sensitive adhesive sheet according to claim 1 is used for outdoor decoration such as an illuminated signboard, It is possible to obtain a decorative effect with excellent expressiveness that has never been realized. Also, the contract In the decorative pressure-sensitive adhesive sheet according to claim 1, the surface of the opaque decorative resin layer is colored or transparent. Is exposed on one side of the colored translucent resin layer, Adhesive sheet for decoration, despite the excellent decorative effect The flatness of can be maintained.

[0030]   On the other hand, in the illuminated signboard according to claim 2, the colored transparent or colored translucent resin layer and the Similar to the decorative pressure-sensitive adhesive sheet according to claim 1, due to the layered structure with the transparent decorative resin layer. In addition, different decorative effects can be obtained depending on the reflected light and the transmitted light. That is, In the daytime, the transparent or colored semi-colored area around the decorative pattern depends on the color of the opaque decorative resin layer. A decorative feeling with a background color due to the transparent resin layer is observed, and transmitted light at night, The opaque decorative resin layer constitutes the dark part, and the colored transparent or colored translucent resin layer is formed around the dark part. The colored and bright decorative part consisting of will be completed. Therefore, conventional It is possible to exert an excellent decorative effect that cannot be obtained with a decorative signboard.

[Brief description of drawings]

FIG. 1 is a partially cutaway sectional view of an adhesive sheet for decoration according to an embodiment of the present invention.

FIG. 2 is a partially cutaway cross-sectional view for explaining the function and effect when the embodiment shown in FIG. 1 is applied to an electric signboard.

FIG. 3 (a) is a partial cutaway sectional view showing a state in which a decorative resin layer is formed on a process paper, and FIG. 3 (b) is a partial cutaway showing a state in which a colored transparent or colored translucent resin layer is formed on an opaque decorative resin layer. Sectional view.

FIG. 4 is a partially cutaway cross-sectional view showing a state in which the decorative pressure-sensitive adhesive sheet and the release paper of the example are laminated on the process paper.

FIG. 5 is a partially cutaway cross-sectional view showing a state in which the decorative pressure-sensitive adhesive sheet of the example is laminated on release paper.

FIG. 6 is a partially cutaway cross-sectional view for explaining an embodiment of the illuminated signboard of the invention according to claim 2.

[Explanation of symbols]

1 ... Adhesive sheet for decoration 2 ... Colored transparent or colored translucent resin layer 3 ... Opaque decorative resin layer 4 ... Adhesive layer

Claims (2)

[Scope of utility model registration request] 1. A colored transparent or colored translucent resin layer, and at least one opaque embedded in the colored transparent or colored translucent resin layer so as to be exposed on one surface of the colored transparent or colored translucent resin layer. A decorative pressure-sensitive adhesive sheet, comprising a decorative resin layer and a transparent pressure-sensitive adhesive layer provided on the other surface of the colored transparent or colored translucent resin layer. 2. An illuminated signboard having a semi-transparent resin plate having a decorative pressure-sensitive adhesive sheet attached to a surface opposite to a side irradiated with light from an illuminating device, wherein a colored transparent or colored semi-transparent resin layer, A transparent first adhesive layer laminated on one surface of the colored transparent or colored semi-transparent resin layer, and on the opposite side of the colored transparent or colored semi-transparent resin layer via the first adhesive layer. A decoration comprising at least one opaque decorative resin layer provided and a transparent second adhesive layer formed on a surface of the opaque decorative resin layer opposite to the first adhesive layer. An electric signboard, wherein an adhesive sheet is attached to the semitransparent resin plate on the second adhesive layer side.