JP2004306432A - Image sheet and method for manufacturing the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an image sheet which can be used for both a transmitted light and a reflected light, and can be easily manufactured even by printing by a printer, and a method for manufacturing it. <P>SOLUTION: The image sheet has a base layer 11 comprising a transparent resin film, the first image layer 13 comprising the first image formed on one surface of the base layer 11, a semi-opaque layer 14 formed on the surface of the first image layer 13, and the second image layer 15 comprising the second image formed on the surface of the semi-opaque layer 14 so as to overlap the image position on the first image. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an image sheet capable of displaying a clear image by either transmitted light or reflected light, and a method for manufacturing the same. These image sheets are used, for example, for advertisement or decoration.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, a panel or a panel photograph for an advertisement is often attached to the premises of a station, the interior wall of a hotel or department store. These have various sizes ranging from a small one having a side of several tens of centimeters to a large one having a side of several meters to ten meters.
[0003]
Usually, these panels mount an image sheet on which an advertisement or decoration image is formed on an appropriate panel frame, and illuminate the back of the image sheet with a fluorescent lamp or the like. The observer can see the image clearly by the transmitted light by the illumination.
[0004]
Conventionally, as such an image sheet, a photographic film obtained by applying a photosensitive emulsion to both sides of a support made of a translucent film is used, and the images are printed on the photosensitive emulsion layers on both sides of the support so that the images overlap each other. Is used as an image sheet (JP-A-59-222835).
[0005]
In such a panel photograph, an image is clearly seen at an appropriate density by transmitted light due to illumination from the back. Even when the back light is turned off, the image looks clear at an appropriate density due to the reflected light from the surrounding light.
[0006]
As described above, in the related art, an image sheet formed by superimposing images on both sides of a support is used.
[0007]
[Patent Document]
JP-A-59-222835
[Problems to be solved by the invention]
However, in the conventional image sheet described above, a support made of a translucent film is used, and such a support is expensive, and as a result, the entire image sheet is expensive. Was.
[0009]
On the other hand, in recent years, with the progress of digital image processing technology, it has become possible to easily and precisely print color images with a printer. As a result, it has become possible to form a color image without photographic printing of the photosensitive emulsion layer as in the prior art.
[0010]
The present invention has been made in view of the above-described problems, and provides an image sheet that is used for both transmitted light and reflected light and can be easily manufactured even by printing with a printer, and a method for manufacturing the same. The purpose is to:
[0011]
[Means for Solving the Problems]
The image sheet according to the present invention includes a base layer made of a transparent resin film, a first image layer made of a first image formed on one surface of the base layer, and a surface of the first image layer. And a second image layer composed of a second image formed on the surface of the milky layer such that the position of the first image overlaps the position of the image.
[0012]
Preferably, an image receiving layer is provided between the base layer and the first image layer, and the first image layer, the milky layer, and the second image layer each perform printing. Is formed by
[0013]
Further, the base layer is made of a resin film having an effect of preventing glass from scattering, and an adhesive layer for bonding to glass is provided on the other surface of the base layer.
[0014]
The production method according to the present invention is a method for producing an image sheet using a base layer made of a transparent resin film as a support, wherein a first image is formed on one surface of the support by printing, Forming a milky layer on the surface of the first image by printing; and forming a second image, which is the same image as the first image, on the surface of the milky layer by printing such that the positions of the images overlap. And steps.
[0015]
BEST MODE FOR CARRYING OUT THE INVENTION
FIG. 1 is a cross-sectional view of an image sheet 1 according to the present invention, and FIG. 2 is a front view showing an example of an image of the image sheet 1.
[0016]
As shown in FIG. 1, the image sheet 1 includes a base layer 11 made of a transparent resin film, an image receiving layer 12 provided on one surface of the base layer 11, and a first image formed on the surface of the image receiving layer 12. A first image layer 13 made of FG1, a milky layer 14 formed on the surface of the first image layer 13, and a second image FG1 formed on the surface of the milky layer 14 so that the position of the first image FG1 overlaps the image. Has a second image layer 15 composed of the image FG2, and a protective layer 16 that protects the second image layer 15.
[0017]
The base layer 11 is formed by forming a polyester resin into a film. The thickness is, for example, about several tens to several hundreds μm. The base layer 11 may be a single layer made of a single film, or may be a multi-layer formed by laminating a plurality of films with an adhesive. A film made of a material other than the polyester resin may be laminated. Further, a film for cutting ultraviolet rays may be laminated, or an ultraviolet absorber may be added as an additive to the polyester resin so as to provide such a function. Further, a resin other than the polyester resin can be used. For example, it may be made of acetate, vinyl, polycarbonate, polyurethane, or another resin material. The base layer 11 preferably has a high transmittance of visible light, for example, a transmittance of 90% or more or 80% or more, but may have a lower transmittance depending on the application, and may have a smoke, for example.
[0018]
The image receiving layer 12 is provided by coating or the like for printing on the surface of the base layer 11. By providing the image receiving layer 12, the ink at the time of printing soaks into the image receiving layer 12, and it becomes difficult for the printed ink to flow. Thereby, the image FG can be printed neatly. The function of the image receiving layer 12 itself is known. The image receiving layer 12 may be included in the base layer 11. If the surface of the base layer 11 is suitable for printing, the image receiving layer 12 can be omitted.
[0019]
The first image layer 13 is formed by printing using an ink by an inkjet printer. The first image layer 13 is printed, for example, as a halftone image using dots of each color component of C, M, Y, and K. As the image FG1 formed on the first image layer 13, various images such as a photographic image, an image based on CG, an illustration image, a line image, an image based on characters, and the like can be applied. As the ink, opaque ink is used. In this case, not completely opaque ink but ink that can partially transmit light is used.
[0020]
The milky white layer 14 is a translucent milky white layer, and is formed by printing the first image layer 13 from above the first image layer 13 using milky white ink, for example. Further, it is formed by applying, printing, or coating a milky white emulsion on the first image layer 13. As such an emulsion or ink, for example, a thin ink in which a suitable amount of a pigment such as titanium white or silica is dissolved in a solvent can be used. The milky layer 14 provides a light transmittance of about 20 to 80%. The light transmittance of the milky layer 14 may be adjusted according to the intensity of illumination light, the intensity of natural light, and the like.
[0021]
The second image layer 15 is the same as the first image layer 13, and is formed by printing with an ink using an ink jet printer. The second image layer 15 and the first image layer 13 may be printed at the same position using the same image data using the same inkjet printer so that the positions of the images overlap each other.
[0022]
For example, the first image layer 13 is printed on the surface of the image receiving layer 12 of the base layer 11 using image data by a printer, the position of the base layer 11 is returned to the original position (initial position), and 11, the milky layer 14 is printed, and similarly, the second image layer 15 is printed using the image data. Alternatively, the second image layer 15 may be formed by performing printing immediately after printing or applying the milky layer 14 while printing or applying the milky layer 14. In this case, the protective layer 17 may be formed by coating immediately thereafter. In the latter case, the entirety of the first image layer 13 and the second image layer 15 can be formed by feeding the base layer 11 twice in total. In this case, an ink tank for storing milky white ink for the milky layer 14 may be provided separately from the ink tanks for the first image layer 13 and the second image layer 15. .
[0023]
The protective layer 16 is a transparent thin film for protecting the second image layer 15. The protective layer 16 may be formed by an appropriate resin coating, or may be formed by Teflon processing or the like. The presence of the protective layer 16 improves the durability. However, it is also possible to omit the protective layer 16 depending on the purpose of use or environment of use.
[0024]
In the image sheet 1 configured as described above, light for illumination (light from the direction of the arrow M2) incident from the side of the base layer 11 can be transmitted due to the presence of the milky layer 14, and FIG. As shown in the figure, the overlapping images FG1 and FG2 of the first image layer 13 and the second image layer 15 are brightly and clearly displayed by the transmitted illumination light. Also, natural light or light for illumination (light from the direction of arrow M1) incident from the side of the protective layer 16 can be reflected by the surface of the opalescent layer 14, and the reflected light allows the second image layer 15 The image FG2 is displayed brightly and clearly. That is, due to the presence of the milky layer 14, the images FG1 and FG2 of the first image layer 13 and the second image layer 15 are clearly displayed by both the reflected light and the transmitted light, as shown in FIG. You. The function of the milky layer 14 itself is known.
[0025]
The image densities of the first image layer 13 and the second image layer 15 are adjusted so that the images FG1 and FG2 look as clear as possible according to the intensity of illumination light, the intensity of natural light, the use environment, and the purpose of use. Should be adjusted.
[0026]
Next, a method for manufacturing the image sheet 1 will be described with reference to a flowchart.
FIG. 3 is a flowchart illustrating a method for manufacturing the image sheet 1.
In FIG. 3, a support made of a transparent resin film is prepared (# 11). An image receiving layer is formed if necessary. A first image is formed on one surface of the support by printing (# 12). A milky layer is formed on the surface of the first image by printing (# 13). A second image, which is the same image as the first image, is formed on the surface of the milky layer by printing so that the positions of the images overlap (# 14). Then, a protective layer is formed as needed.
[0027]
According to the image sheet 1 of the embodiment described above, the base layer 11 made of an inexpensive transparent resin film can be used, and the entire image sheet 1 is inexpensive. In addition, since the first image layer 13, the milky layer 14, and the second image layer 15 can be formed by printing using an ink jet printer, any image can be easily formed in a short time at low cost. Can be.
[0028]
Next, an embodiment in which the image sheet 1 is used to prevent scattering of glass will be described.
FIG. 4 is a cross-sectional view of an image sheet 1B according to another embodiment.
[0029]
In FIG. 4, a base layer 11, an image receiving layer 12, a first image layer 13, a milky layer 14, a second image layer 15, and a protective layer 16 are the same as those of the image sheet 1 described above. However, in the image sheet 1B of the embodiment, the base layer 11 is made of a resin film having an effect of preventing glass from scattering. Then, an adhesive layer 21 and a release layer 22 are provided on the other surface of the base layer 11.
[0030]
The adhesive layer 21 is made of a material having good adhesion to glass, and for example, an acrylate copolymer or the like is used. The release layer 22 protects the adhesive layer 21 before using the image sheet 1B as a glass shatterproof film, and peels off from the adhesive layer 21 during use. As the release layer 22, for example, a thin film of polyester resin is used.
[0031]
In addition, the laminated body composed of the base layer 11, the adhesive layer 21, and the release layer 22 (hereinafter sometimes referred to as a "scatter prevention laminate") includes "glass shatter prevention film", "crime prevention fire prevention film". Alternatively, a film commercially available as a “security film” or the like may be used. In addition, what conforms to the scattering prevention performance test specified by JIS-A-5759 is preferable.
[0032]
By sticking such an image sheet 1B to glass such as a window or an entrance, the glass is prevented from being scattered, and the first image layer 13 and the second image layer 15 perform image display. Decoration and advertising are performed accordingly.
[0033]
In the above embodiment, the first image layer 13 and the second image layer 15 are formed by printing, but may be formed by photographic printing instead of printing. In this case, a photographic emulsion layer may be provided as the first image layer 13 or the second image layer 15, and the photographic emulsion layer may be exposed to light to print an image, and then developed and fixed.
[0034]
In the above embodiment, the configuration, dimensions, material, and the like of the whole or each part of the image sheets 1 and 1B can be appropriately changed in accordance with the gist of the present invention.
[0035]
【The invention's effect】
According to the present invention, it is possible to provide an image sheet that is used for both transmitted light and reflected light and can be easily manufactured by printing with a printer, and a method for manufacturing the same.
[0036]
According to the invention of claim 4, it is possible to prevent the glass from scattering.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view of an image sheet according to the present invention.
FIG. 2 is a front view illustrating an example of an image sheet.
FIG. 3 is a flowchart illustrating a method for manufacturing an image sheet.
FIG. 4 is a cross-sectional view of an image sheet according to another embodiment.
[Explanation of symbols]
1,1B Image sheet 11 Base layer 12 Image receiving layer 13 First image layer 14 Milky layer 15 Second image layer 21 Adhesive layer FG1,2 Image

Claims (4)

A base layer made of a transparent resin film,
A first image layer comprising a first image formed on one surface of the base layer;
A milky layer formed on the surface of the first image layer;
A second image layer including a second image formed on the surface of the milky layer so that the position of the first image and the position of the image overlap;
An image sheet comprising: An image receiving layer is provided between the base layer and the first image layer,
The first image layer, the milky layer, and the second image layer are each formed by performing printing,
The image sheet according to claim 1. The base layer is made of a resin film having a glass scattering prevention effect,
An adhesive layer for bonding to glass is provided on the other surface of the base layer,
The image sheet according to claim 1. A method for producing an image sheet using a base layer made of a transparent resin film as a support,
Forming a first image by printing on one surface of the support;
Forming a milky layer on the surface of the first image by printing;
Forming a second image, which is the same image as the first image, on the surface of the milky layer by printing such that the positions of the images overlap with each other;
A method for producing an image sheet, comprising:

Images