JPH081543B2 - Different color display method - Google Patents

Description

TECHNICAL FIELD The present invention relates to a method for displaying a different-colored electric decoration using a sheet for electric decoration. More specifically, the present invention is
Using a sheet for electrical decoration having a colored surface layer and a back surface layer having different colors from each other, the color observed by reflected light and the color observed by transmitted light are different from each other with regard to a display method of different colors. is there.

[Conventional technology]

Recently, as a display sheet, a light source is arranged on the surface side, and in the daytime, the display items on the surface side are observed by reflected light, and at night, the light source is emitted to illuminate the entire display sheet with transmitted light. The display on the front side can be observed,
A reflected light / transmitted light dual display means, for example, a sign called a backlit is used.

However, in the conventional display means, the daytime display by reflected light and the illumination display at night by transmitted light have the same color and are monotonous.

[Problems to be Solved by the Invention]

The present invention breaks down the monotony of the conventional display means for both reflected light and transmitted light, and makes the colors of the display by the reflected light and the display by the transmitted light different from each other, thereby imparting an unexpectedness to the illuminated display. In addition, the present invention intends to provide a different color illumination display method capable of obtaining an illumination display suitable for the atmosphere.

[Means for solving the problem]

The differently colored electric display method of the present invention includes a flexible polymer resin as a base material, respectively, and a surface layer and a back surface layer made of a light-transmissive film material having a thickness of 0.05 mm or more are laminated and thermocompression bonded. In the illuminated display method using the formed laminated sheet portion and the light source arranged on the back surface side of the laminated sheet portion, the surface layer and the surface layer are colored bodies having mutually different colors, and the surface layer Is translucent, and the total transmittance of the laminated sheet portion is 0.08 to 10%. At night, the light source is caused to emit light, the light is transmitted through the laminated sheet portion, and the color of the transmitted light is Display, and in the daytime, without projecting the light source, the light projected onto the surface layer surface of the laminated sheet portion is reflected on this surface, and a color different from the transmitted light is displayed by this reflected light, Characterized by Things.

In the method of the present invention, a "colored film material" for forming a back surface layer of a laminated sheet for electrical decoration (hereinafter referred to as a sheet for electrical decoration)
Is substantially free of membranous materials that are "colorless" and "white".

[Work]

In the sheet for electric decoration used in the method of the present invention, the front and back layers forming the front and back sides are formed of colored film materials having different colors. Therefore, the color of the surface layer film material observed by the reflected light of the light projected on the surface, and the color observed by the transmitted light that is projected from the back surface to the surface and transmitted through the entire decorative sheet, That is, the color of the back layer film material and the color of the front layer film material that are additively mixed are different from each other.

The light projected on the surface of the decorative sheet may be daylight, but may be light from a light source lamp arranged on the surface side of the decorative sheet. Further, the light that passes through the sheet for electric decoration is the light projected from the light source lamp arranged on the back surface side.

Generally, in order that only the color of the surface layer film material is observed by reflected light, it is not preferable that the light projected on the surface is transmitted through the surface layer and internally reflected. It is necessary that the light transmittance of the film material is relatively low, that is, the surface layer film material is translucent.

Further, in the case where the light source is caused to emit light so that the added mixed color can be observed by the transmitted light, it is preferable that the light projected from the light source is diffused almost uniformly over the entire sheet for electrical decoration and is transmitted uniformly. , It is not preferable that only the vicinity of the light source is strongly illuminated and brightly observed and other portions are darkly observed.

In order to solve the above problems in the case of both reflected light observation and transmitted light observation, it is necessary to have appropriate semitransparency and light diffusivity as the entire sheet for electrical decoration, and specifically, Needs to have a light transmittance of 0.08 to 10%, and preferably has a light transmittance of 0.3 to 7%.

In addition, as described above, at least the surface layer film-like material has a good light diffusivity in order for the entire illumination sheet to show almost uniform brightness by the light projected from the back side light source of the illumination sheet. The material having a surface layer film material is preferably highly transparent in order to enhance the light transmission efficiency.

Further, the surface layer made of the translucent film-like material as described above facilitates observation by reflected light and can clearly show its own color.

The film material used for forming the front and back layers can be selected from polymer films (or sheets), fibrous material sheets and the like in consideration of the requirements of Aitsu.

Polymer film (or sheet) used as front and back surface layer film material of the sheet for electrical decoration used in the method of the present invention
Is formed of a flexible polymer resin. Such flexible polymer resins include natural rubber, neoprene rubber, chloroprene rubber, silicone rubber, fluororubber, hypalon and other synthetic rubbers, or PVC resin, ethylene-vinyl acetate copolymer (EVA) resin, acrylic resin. Resin, silicone resin, polyurethane resin, polyethylene (PE) resin,
Polypropylene (PP) resin, polyester resin, fluororesin and other synthetic resins can be used by coloring them in a desired color. Such a material also has good waterproofness, and can impart desired waterproofness, flame retardancy, and mechanical strength to the obtained electrical decoration sheet. Flexible polymer surface
The back surface layer has a thickness of 0.05 mm or more, more preferably 0.
It has a thickness of 05-1.0 mm.

These flexible polymer resin film materials are formed by a known method, for example, a method such as topping, calendering, coating, dipping, etc., using a rubber or resin film, solution, paste or straight as described above. can do.

These rubbers or resins may contain a plasticizer, a stabilizer, a colorant, an ultraviolet absorber and the like, and other function-imparting agents such as a flameproofing agent and a flame retardant.

The flexible polymer resin film material may be formed of a single layer of the flexible polymer resin, but is formed on the inner layer of the flexible resin and the inner layer to prevent stains and weather. And an outer layer made of a synthetic resin.

As the antifouling / weather resistant synthetic resin for the outer layer, a fluorine-containing resin and an acrylic resin can be used. That is, the outer layer of the antifouling / weather-resistant resin has a fluorine-containing resin on the inner layer,
Alternatively, it is formed by applying an acrylic resin or attaching a film made of these resins.

Generally, a fluorine-containing resin is flame-retardant, antifouling, and weather-resistant, but since it is not compatible with ordinary plastic adhesives, it is extremely difficult to stick it to the surface of the inner layer as it is.

Therefore, by subjecting the surface of the film of the fluorine-containing resin to corona discharge or low-temperature plasma treatment and activating it as much as possible, for example, with an adhesive such as polyvinyl chloride, polyepoxy, polyacryl, and polyester resin. It has increased affinity. Usually, the surface treatment of the fluorine-containing resin film is activated by the above treatment. For this, for example 100-200
Corona discharge treatment is performed under the conditions of V, 40 to 100 μF and short-circuit current 1 to 2 A. Such discharge treatment gives the fluorine-containing resin film a desired adhesiveness. However, the surface treatment of the fluorine-containing resin film used in the present invention is not limited to this, and any other surface treatment or the like can be used as long as it exhibits the same or higher effect.

As the resin constituting the fluorine-containing resin film, various polyfluoroethylenes synthesized from monomers in which one or more hydrogen atoms of ethylene are substituted with fluorine atoms, for example, polytetrafluoroethylene, or a part thereof There are various kinds of polyfluorochloroethylene containing chlorine, for example, polytrifluorochloroethylene, but also polyvinyl fluoride, polyvinylidene fluoride, polydichlorodifluoroethylene, and the like. The thickness of the film is preferably 0.001 mm to 0.5 mm, more preferably about 5 to 50 μm, but it is made thicker or thinner as long as the objects of weather resistance, antifouling property and durability are achieved. There is no particular limitation. In addition, the fluorine-containing resin film,
Other resins such as MMA and the like may be mixed or pasted and composited so long as the object of the present invention is achieved. Examples of commercially available fluorine-containing resin films for sheets for electric decoration used in the method of the present invention include Tedlar film (DuPont, trademark) and Aflex film (Asahi Glass,
Trademark), KFC film (Kureha Chemical, trademark), etc.

In the surface layer of the sheet for electrical decoration used in the method of the present invention, the outer layer is made of a substantially smooth film-like fluorine-containing resin, and it is preferable that the outer layer is attached to the upper surface of the inner layer. Alternatively, it may be formed by applying an emulsion or the like. In the sheet for electrical decoration used in the method of the present invention, the fluorine-containing resin film is 10
It preferably has a tensile strength of 0 kg / cm ² or more.

Antifouling in the sheet for electric decoration used in the method of the invention
The weather resistant resin outer layer may be formed of a polyacrylic resin. For this reason, an acrylic resin film is generally used, but a method in which an acrylic resin solution or emulsion is applied onto the base layer and dried may be used.

In the sheet for electrical decoration used in the method of the present invention, the acrylic resin film preferably has a tensile strength of 100 kg / cm ² or more, a weight of 1 to 50 g / m ² , preferably a weight of 3 to 30 g / m ² , and leaves It preferably has a thickness of 3 μm or more (usually 3 to 50 μm), and more preferably 4 to 30 μm.

The acrylic resin film of the sheet for electrical decoration used in the method of the present invention may be one produced by a T-die method, an inflation method or any other method. Further, either a stretched film or an unstretched film may be used, but a film having an elongation of about 100 to 300% is preferable. Further, as described above, the thickness is usually about 3 μm to 50 μm, but it may be slightly thicker or thinner as long as sufficient weather resistance and antifouling property are achieved. The film material is a polyalkyl methacrylate-based film, for example, a material mainly containing methyl methacrylate, ethyl methacrylate, propyl methacrylate, butyl methacrylate, or the like, or a homo-monomer such as acrylate, vinyl acetate, vinyl chloride, styrene, acrylonitrile, methacrylonitrile, or the like. Alternatively, a homopolymer or copolymer serving as a comonomer component is preferably formed into a film. Such a film is adhered to the surface of the inner layer using an adhesive or is attached by other method.

In the sheet for electrical decoration used in the method of the present invention, the antifouling / weather-resistant resin outer layer formed on the flexible resin inner layer is a polyvinylidene fluoride resin in addition to the above-mentioned fluorine-containing resin and acrylic resin. Laminate of a layer and an acrylic resin layer,
Alternatively, a polyvinylidene fluoride resin layer, an acrylic resin layer,
It may be composed of a laminate with a polyvinyl chloride resin layer. In these laminates, the polyvinylidene fluoride resin layer has a thickness of 2 to 3 μm, and the acrylic resin layer has a thickness of 2 μm.
~ 4μm and the thickness of polyvinyl chloride resin layer is 40 ~ 45
It is preferably μm.

The film-shaped material forming the surface layer in the sheet for electrical decoration used in the method of the present invention is an outer layer made of a colored transparent flexible polymer material, and a material laminated on the lower surface thereof and having a desired glitter effect. Made of a flexible polymer material containing
Therefore, it may be composed of a semitransparent inner layer. As the glittering material, for example, a glittering metal powder such as aluminum powder, copper powder, copper alloy powder or the like can be used, and such glittering material is used as a transparent flexible polymer resin such as natural rubber or synthetic resin. Rubber (for example, neoprene rubber, chloroprene rubber, silicone rubber, fluororubber, Hypalon, etc.), and synthetic resin (for example, polyvinyl chloride resin, ethylene-vinyl acetate copolymer (EVA) resin, acrylic resin, silicone resin, polyurethane resin) , Polyethylene resin, polypropylene resin, polyester resin, fluororesin, etc.), and the like.

In the sheet for electrical decoration used in the method of the present invention, the front and back surface layer film-like material may be formed of a fiber material sheet having appropriate translucency. Such a fibrous material sheet may be obtained by coloring (dying) a desired color with natural fibers such as cotton and hemp, inorganic fibers such as glass fibers, recycled fibers such as viscose rayon, cupra and the like. Synthetic fibers such as di- and triacetate fibers, and synthetic fibers such as nylon 6, nylon 66, polyester (polyethylene terephthalate, etc.), fibers, aromatic polyamide fibers, acrylic fibers, polyvinyl chloride fibers and polyolefin fibers, etc. It is composed of at least one selected from The fibers in the fiber material sheet may have any shape such as a short fiber spun yarn, a long fiber yarn, a split yarn, a tape yarn, etc., and the fiber material sheet may be a woven fabric, a knitted fabric or a non-woven fabric or a composite fabric thereof. May be Generally, the fiber used for the sheet for electrical decoration used in the method of the present invention is preferably a polyester fiber, and in consideration of the low elongation to stress, the fiber is preferably a long fiber (filament), and It is preferable to form a plain woven fabric. The fiber material sheet is useful for maintaining the mechanical strength of the resulting decorative sheet at a high level.

In the sheet for electrical decoration used in the method of the present invention, a portion having a light transmittance of less than 0.08% is formed in the sheet for electrical decoration, thereby partially blocking or reducing the transmission of the transmitted light. Alternatively, the characters or patterns may be displayed.

In the sheet for electric decoration used in the method of the present invention,
The back layer film material may be laminated and thermocompression-bonded to each other via an intermediate binding sheet layer. Such an intermediate binding sheet layer preferably has a light transmittance of 1 to 80%, more preferably 3 to 70%. And the sheet for electric decoration including the intermediate binding sheet layer,
Overall, it is necessary that its semi-transparency be 0.08-10%.

The intermediate binding sheet layer has a reinforcing effect on the electrical decoration sheet, but can adjust the color of transmitted light of the electrical decoration sheet and give a diffusing effect thereto. Also, the intermediate binding sheet layer prevents the light projected on the front surface layer from transmitting to the back surface layer, and thus prevents the light reflected on the front surface layer from mixing with the light reflected on the front surface layer. It also has an effect. That is, the intermediate binding sheet layer, the color of the surface layer by the reflected light, and the surface layer by the transmitted light,
It has an effect of making a distinct difference between the intermediate binding sheet layer and the mixed color with the surface layer.

When using a relatively low light transmittance as the intermediate binding sheet layer, at least one of the back surface layer and the surface layer,
Preferably, the back surface layer may be formed of a transparent colored film material. When such a translucent binder sheet and a transparent colored film material for surface layer are laminated, a translucent surface layer is formed as a whole.

The intermediate binding sheet layer may be formed of a film or sheet made of the flexible polymer resin as described above. However, the tensile strength of the sheet for electric decoration, crack resistance in cold weather, bending resistance when the sheet is rubbed, crack resistance, dispersion / absorption of stress applied to the surface layer, light decoration effect by light diffusion In consideration of soft divergence of light, the intermediate binding sheet layer is preferably made of a fibrous material sheet or a laminated composite of a fibrous material sheet and a polymer film.

The fibrous material sheet used for forming the intermediate binding sheet layer includes the same fibers, yarns, and threads as those of the translucent fibrous material sheet described above.
And may be made of cloth.

In the sheet for electrical decoration used in the method of the present invention, as an intermediate binding sheet layer made of the most preferable fiber material, for example, a woven sheet having a special structure as described in JP-B-57-30381 may be used. preferable. Such a special structure fabric sheet is, for example, as shown in FIG. 1, a warp layer composed of a plurality of warp yarns 1 arranged in parallel with each other, and a warp yarn layer arranged in parallel with each other so as to be orthogonal to the warp yarns 1. And a weft yarn layer 3 composed of a large number of weft yarns 2 and a entanglement yarn 3 which entangles and bonds the warp yarn 1 and the weft yarn 2 at their intersection
It consists of and. The warp and weft of the woven sheet are natural fibers such as cotton and hemp, inorganic fibers,
For example, recycled fiber such as glass fiber, for example, viscose rayon, cupra and the like, semi-synthetic fiber, for example,
And tri-acetate fiber and the like, and synthetic fiber such as at least one selected from nylon 6, nylon 66, polyester (polyethylene terephthalate etc.) fiber, aromatic polyamide fiber, acrylic fiber, polyvinyl chloride fiber and polyolefin fiber. It consists of seeds. The fibers in the fiber material sheet may have any shape such as short fiber spun yarn, long fiber yarn, split yarn, tape yarn and the like. The warp yarns and the weft yarns are arranged in parallel with each other, and the warp layers and the weft yarn layers formed thereby are laminated so as to intersect with each other, and are loosely joined by a long entanglement yarn at the intersection of the warp and weft threads.

The entangled yarn is selected from known synthetic fibers such as polyester, nylon, aromatic polyamide, glass fiber, steel fiber and other known inorganic fibers, and polyester filament yarn is particularly preferable.

The entanglement yarn is longer than the warp yarn and the weft yarn, and thus loosely connects the warp yarn and the weft yarn, and at least one of the tensile strength, the tensile elongation, and the breaking work amount.
It is preferable that the warp yarn and the weft yarn are larger than those of the warp yarn and the weft yarn, and / or the adhesive force to the resin material is smaller than that of the warp yarn and the weft yarn. As the entangled yarn, a yarn having the following characteristics is particularly preferable. That is, (i) the entwined yarn is stronger than the warp yarn and the weft yarn,
Greater than 10% per unit denier.

(Ii) The entanglement yarn has a breaking work amount of 10% or more than the warp yarn and the weft yarn.

(Iii) The entanglement yarn has a breaking elongation of 5% or more than the warp yarn and the weft yarn.

(Iv) Tangled yarns have a lower adhesion to the front and back film strip materials than warp yarns and weft yarns.

Among them, the leno yarn having a tenacity per unit denier of 10% or more than the warp yarn and the weft yarn is preferably 20 to 30.
% Is used in order to prevent the progress of tearing that occurs in warp and weft yarns by a large entanglement yarn having a strength of 10% or more, and the entanglement yarns are longer than the warp yarns and therefore warp yarns. Since the degree of freedom of change and deformation is larger than that of the yarn, it is possible to flexibly deal with and absorb the tearing force continuously acting on the sheet. That is, even if the tearing force acts on the sheet and the warp and weft yarns are displaced and then cut, the entangled yarns are displaced and deformed following the tearing force without cutting, and eventually the energy of the pulling line is absorbed and the pulling line is drawn. Can be stopped.

Next, as the entanglement yarn, a yarn having a breaking work amount of preferably 10% or more, more preferably 20 to 30% higher than that of the warp and weft yarn can be used. The breaking work here is a value approximately represented by the product of the tenacity at the time of cutting the yarn and the elongation at the time of cutting.

Work load at break = Tensile strength at break x Tensile strength at break Now, for example, as a warp and weft thread, a polyester filament yarn having a breaking tensile strength of 8.0 g per unit denier and a breaking tensile elongation of 13% is used. A polyamide fiber yarn with 7.0 g per denier and a tensile elongation at break of 18% is used. At this time, the breaking work of the entangled yarn is about 21% larger than that of the warp and weft yarn. Further, in consideration of workability, it is desirable to use yarns of the same material.

Furthermore, a twine having a breaking elongation of preferably 5% or more than that of the warp and weft thread can be used for braiding.
When polyester filament yarn is used, the breaking elongation of the warp and weft yarn is preferably 15% or less, particularly 8 to 12%,
On the other hand, the breaking elongation of the entangled yarn is 15% or more, especially 20% or more, and those having a difference of at least 5% or more give good results. If the entanglement yarn is a synthetic fiber,
At the time of production, while maintaining a predetermined strength by adjusting the degree of polymerization of the polymer material, or to have a desired large breaking elongation, or at the time of production, those having a reduced filament draw ratio, for example, An undrawn yarn or a twisted yarn having a desired breaking elongation can be obtained by applying crimps during secondary processing.

Furthermore, it is also possible to use a entangled yarn having a smaller adhesive force to the front and back surface layer film material than the warp and weft yarn. In this case, the entangled yarn may have its surface treated with silicon or the like. In this case, the warp and weft yarns have less degree of freedom of displacement and deformation due to adhesion with the front and back cotton layer film material, but the degree of freedom of the entanglement yarn is larger than that of the warp and weft yarns, and When a force is applied to the base cloth, the entanglement yarn can slip and be displaced and deformed, and thus can prevent the pulling of the base cloth.

In order to reduce the adhesive strength, the surface of the entangled yarn is subjected to non-adhesion treatment such as silicone treatment or oil treatment, or
Threads that are essentially adhesive may be used, such as polyethylene and polypropylene threads.

As described above, in the woven sheet, preferably, the entanglement yarn for connecting the warp and weft yarns arranged in parallel in the warp and weft direction is substantially longer than the warp and weft yarns, and the entanglement yarn cuts the warp and weft yarns. Or, even if it is in a displaced state, it is long or strong enough not to cut at least part of it,
The work of breaking, and / or the breaking elongation is large, or the adhesive force is configured to have a physical property such as a small, the tensile force is held by the warp and weft yarn,
With the entangled yarn, resist the impact force at the time of drawing, or absorb the entanglement energy, and further, the entangled yarn remains without being cut, so that the front and back surface layer film-like material accompanying the entanglement, It is possible to prevent delamination from the intermediate binding sheet layer.

The intermediate binding sheet layer may be colored in a predetermined color corresponding to the requirements (color, light transmittance, etc.) of the sheet for electrical decoration, or may be uncolored. In any case, the sheet for electrical decoration consisting of the front and back double-sided layers and the intermediate binding sheet layer as a whole must have a total light transmittance of 0.08 to 10%.

In order to produce the sheet for electrical decoration used in the method of the present invention, each is composed of a flexible polymer resin, and a colored film material for the surface layer and a colored film material for the back surface layer having a desired color. May be laminated and heated under pressure to be united.

Alternatively, an intermediate binder sheet layer having a predetermined color or colorless is inserted between the colored surface layer and back surface layer film-like materials, and they are heated and pressed to combine the above three layers. May be.

Alternatively, the front and back surfaces of the intermediate binding sheet layer may be coated with different colored resin coatings, or a transparent adhesive that does not interfere with the color effect of the decorative sheet may be applied to form the front and back layer film material. It is also possible to form a colored film-like body by adhering to, and drying and solidifying this.

〔Example〕

The method for displaying a different color electric decoration of the present invention will be further described with reference to examples. In the following examples, the light transmittance of the test sample was measured as follows.

Measurement of light transmittance 1. Device i) Inner diameter, 51 cm (high) x 2 using a 1.5 mm thick veneer plate
We assembled a rectangular columnar box measuring 7 cm (width) x 30 cm (back).

(One of the sides of this box was openable and closed so that there was no gap when closed.) Ii) A slit plate of 27 cm x 30 cm was made from a plywood plate, and i)
It was attached at a position 10 cm above the bottom of the box prepared in step 1 so that it was parallel to the top and bottom plates.

iii) The slit plate prepared in ii) has 5 cm ×
A 5 cm square optical path (cutout) is provided so as to be parallel to each side of the slit plate, and it shall not allow light to pass anywhere else.

iv) White lamp as a light source (Indoor eye lamp RS 100V
300W Iwasaki Electric Co., Ltd.) was attached and fixed to the top plate so that the distance from the tip of the lamp to the optical path of the slit plate was 21 cm.

v) The central part of the light sensing part (sensor) of the illuminance meter (Toshiba 1M-2D) was fixed so as to be located on the extension of the straight line connecting the central part of the white lamp of the light source and the central part of the optical path of the slit plate. .

(The height of the sensor part of the illuminometer is 2.5 cm.
The distance from the optical path (slit) to the sensor part of the illuminometer was 7.5 cm. ) Vi) Between the white lamp as the light source and the power source, a current variable device (slidac) for adjusting the light quantity of the lamp is arranged.

2. Test sample i) The test sample can be measured if it is larger than the optical path (5 cm x 5 cm). However, a large one was used so that it would not fall or shift when placed on the optical path.

ii) The sample used had a uniform thickness in every part and was uniform.

3. Measurement method i) The power was turned on, and the lamp was gradually turned on using the current variable device.

ii) Without a sample to be measured, set the current variable device so that the illuminance of white light emitted from the lamp of the light source when it reaches the illuminometer through the optical path of 5 cm × 5 cm is between 19,000 and 20,000 lux. It was set using.

iii) When the illuminance is between 19,000 and 20,000 lux,
At that time, the illuminance was continuously measured and recorded three times. The permissible range of variation in the values measured three times was within 1%. If the variation was 1% or more, the measurement was repeated again and it was confirmed that the light source was stable.

The average value of three measurements was used as a blank (L ₀ ).

iv) After completing the blank measurement, the sample to be measured is completely covered with the optical path on the slit and
I attached it in a flat state without tarmi. At this time, which of the front side and the back side of the sample should be measured toward the light source was determined considering the application of the sample, and an appropriate one was selected.

v) The sample was raised on the optical path, the light source light set as a blank was passed through, and the illuminance when the transmitted light reached the illuminometer was measured. The measurement was performed 3 times, and the variation was within 1%, and when the variation was 1% or more, the measurement was repeated again.

 The average value of the three measured values was taken as the measured value (L).

vi) Light transmittance (%) is measured value (L) blank (L ₀ ).
Expressed as a percentage of.

Light transmittance (%) = (L / L ₀ ) × 100 Example 1 A red translucent film and a blue translucent film having the thickness, composition and light transmittance shown in Table 1 below were prepared.

Red and blue translucent films were laminated, and heated and pressed at 165 ° C. for pressure bonding to obtain a sheet for electrical decoration. The light transmittance of this sheet for electrical decoration was 4.6%. A display box was prepared with the blue film layer as the surface layer and the red film layer as the surface layer, and an illumination lamp was installed in the center of the box. In the daytime, the box showed a beautiful blue color due to the reflected light of the sunlight projected on the surface of the box, but when the night illumination lamp was turned on, the box glowed reddish purple due to the transmitted light, showing a beautiful electrical effect. . That is, it was possible to display two colors of blue and magenta using the same box.

Example 2 Three types of films having the thickness, composition and light transmittance shown in Table 2 were prepared.

Separately, a polyester multifilament yarn woven sheet having the following structure and the structure shown in FIG. 1 was prepared.

Entangled thread: Nylon 6 multifilament thread, 105d / 12f
/ 1 greige weight: 125 g / m ² greige light transmittance: 42% The red semi-transparent film on one side of the woven sheet and the colorless transparent film on the opposite side of 165
It thermocompression-bonded at ℃. Further, on the above colorless and transparent film layer of this laminate, the following composition: Aluminum powder 6 g (particle size 20 μm, dry solid content 53% by weight) Polyacrylic resin solution 100 g (dry solid content 25% by weight)
Apply 25g of diluted solvent coating solution using a 60 mesh screen,
The coating liquid coating amount was 25 g / m ² .

Separately, when the same coating solution as above was applied to the above colorless transparent film in the same manner as above, the light transmittance of the obtained laminated film was 50%.

A blue transparent film described in Table 2 is laminated on the above-mentioned aluminum powder-coated surface and heat-pressed at 165 ° C. to have a semitransparent blue front surface layer and a red back surface layer as a whole, a sheet for electrical decoration. Got The light transmittance of this sheet was 0.3%.

A box-shaped outdoor signboard was created using this sheet for lighting, and an illumination lamp was installed inside the box. In the daytime, this signboard was a beautiful blue signboard that exhibited a brilliant blue color due to the reflected light of the projected sunlight, and reflected the projected light (sunlight) to shine. Further, when the illumination lamp is turned on at night, the transmitted light causes the signboard to shine evenly in the front surface in almost red color, which is completely different from that in the daytime.

Furthermore, the woven sheet used as the intermediate binding sheet layer forms gentle irregularities on the surface of the sheet for electrical decoration, which complicates the light reflection and light scattering of the sheet for electrical decoration, and the light emitting effect is extremely mild. And it could be solid.

Example 3 The same operation as in Example 2 was performed. However, a fluorine-containing resin film (trademark: KFC film, manufactured by Kureha Chemical Co., Ltd.) (thickness: 50 μm) was attached on the blue transparent film.

The light transmittance of the obtained sheet for electrical decoration was 0.2%, and the box-shaped signboard obtained from this sheet exhibited the same different color display effect as in Example 2.

Example 4 A light transmittance of 0.0016 was applied to the inner surface of the sheet for electrical decoration of Example 2.
% Of a vinyl chloride resin film was cut out to attach a pattern to the box to prepare a box-standing outdoor signboard, which was illuminated as in Example 2. Similar to Example 2, the result is a beautiful blue signboard that shines all over in the daytime due to the reflection of the projected sunlight, and when the illumination lamp is turned on at night, the signboard is almost evenly red due to the transmitted light. While shining, the pattern portion of the vinyl chloride resin film attached to the back surface had almost no light transmission, and the pattern emerged black and another beautiful display completely different from the daytime was observed.

〔The invention's effect〕

In the different color electric decoration display method of the present invention, by forming the front and back layers of the electric decoration sheet with different colored film-like materials, the color of the surface obtained by reflected light with respect to this sheet, and the surface obtained by transmitted light Can be different from the color of the
It is now possible to provide two different display colors.

By limiting the total light transmittance of the decorative sheet to 0.08 to 10%, it is possible to diffuse the light uniformly in the transmitted light sheet and evenly illuminate it.

Further, by binding both the front and back layers with the intermediate binding sheet layer, while reinforcing the obtained sheet for electrical decoration,
It allows complex mixing of colors for transmitted light and promotes uniform diffusion.

Therefore, by using the different color electric decoration display method of the present invention, it is possible to perform arbitrary multicolor display electric display from extremely small ones to extremely large ones and outdoor ones exposed to severe wind and rain. Became.

Further, in the different color electric decoration display method of the present invention, the light transmittance and the hue of the surface layer, the intermediate binding sheet layer and the back surface layer are partially changed without changing the color display by the reflected light of the surface layer. The light transmittance and hue of the entire sheet for electrical decoration can be partially or in some cases given a plurality of changes to make the pattern stand out, and it is also possible to show partially transmitted light with a changed color. .

In a special case, it is also possible to make the transmitted light extremely small, that is, to make the light transmittance close to 0% so that the black pattern is partially made to appear. All of these can also produce a complex pattern of color mixes, shades, blacks, and combinations thereof by varying the light transmission in part between 0 and 10%. Even when the surface layer is colored, when the light transmittance is partially reduced to 0.08% or less, or 0%, a bright black color can be obtained in addition to the daytime color.

[Brief description of drawings]

FIG. 1 is an explanatory view showing the constitution of an example of a woven sheet used as an intermediate binding sheet layer of a sheet for electric decoration used in the method of the present invention. 1 ... Warp, 2 ... Weft, 3 ... Tangle.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (56) Reference JP-A-59-184186 (JP, A) JP-A-54-91198 (JP, A) Actually opened 55-22781 (JP, U) Actual-opened 22782 (JP, U) Japanese Patent Sho 55-13290 (JP, B2) Actual 14-17277 (JP, Y2)

Claims (9)

[Claims] 1. A laminate formed by laminating and thermocompression-bonding a front surface layer and a back surface layer each containing a flexible polymer resin as a base material and made of a light-transmissive film material having a thickness of 0.05 mm or more. In the electrical display method using a sheet portion and a light source arranged on the back surface side of the laminated sheet portion, the surface layer and the surface layer are colored bodies having mutually different colors, and the surface layer is translucent. Yes, and the total light transmittance of the laminated sheet portion is 0.08 to 10%, at night, the light source is caused to emit light, and the light is transmitted through the laminated sheet portion to perform color display by the transmitted light. In the daytime, the light projected onto the surface layer surface of the laminated sheet portion is reflected on this surface without causing the light source to emit light, and the reflected light displays a color different from the transmitted light. Yes, a different colored light table How to show. 2. The flexible polymer resin is natural rubber, synthetic rubber, polyvinyl chloride, ethylene-vinyl acetate copolymer resin, acrylic resin, silicone resin, polyurethane resin, polyethylene resin, polypropylene resin, polyester resin, And selected from fluorine-containing polymer resins,
The method according to claim 1. 3. At least one of the front and back film materials is composed of an inner layer formed of a flexible polymer material, and an outer layer formed thereon of an antifouling and weather resistant synthetic resin. The method according to claim 1. 4. A transparent outer layer in which the surface film material is made of a colored flexible polymer material, and a translucent inner layer made of a flexible polymer material containing a glittering material and laminated on the outer layer. A method as claimed in claim 1, comprising: 5. The method according to claim 1, wherein the front surface layer and the back surface layer are laminated and bound via an intermediate binding sheet layer having a light transmittance of 1 to 80%. 6. The method of claim 5, wherein the intermediate binder sheet layer comprises a flexible polymer film. 7. The method of claim 5, wherein the intermediate binding sheet layer comprises a textile fabric. 8. The method of claim 5 wherein the intermediate binder sheet layer comprises a composite sheet of a flexible polymer film and a textile fabric. 9. A portion having a light transmittance of less than 0.08% is formed in a part of the laminated sheet portion, thereby partially blocking or reducing the transmission of the transmitted light to display characters or patterns. The method according to claim 1, wherein