JP2004226478A - Transparent sticker and its manufacturing method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a transparent sticker which is superior in light blocking property and transparency, on which a desired pattern, characters, etc., can easily be printed by using a store-bought device, and are hardly damaged or illegible. <P>SOLUTION: Used is the transparent sticker 10 which has a finely-patterned print layer 5 laminated on the surface of a transparent base material 2 having acrylic resin exposed on at least one surface on the surface on the side of the acrylic resin is exposed and also has an adhesive layer 3 laminated on the surface of the transparent base material 2 on the opposite side from the surface having the print layer 5, and is characterized in that the print layer 5 is formed by laminating a plurality of ink layers 6 including a black ink layer 6k, a white ink layer 6w, and a color ink layer 6c which is arranged as the top layer of the laminated ink layers 6 and the white ink layer 6w is provided between the black ink layer 6k and color ink layer 6c. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a see-through sticker that can be seen through, and more particularly to a see-through sticker that is used by being attached to a window glass of a vehicle such as an automobile or a subway.
[0002]
[Prior art]
Conventionally, you can see the outside of the car from the inside of vehicles such as automobiles and subways, but after providing a large number of through-holes in a plastic film that has been opaque by coloring or printing, etc. A transparent sticker formed by applying an adhesive is known. In this type of transparent sticker, appropriate transparency and light shielding properties are provided by appropriately setting the diameter of the through hole and the area ratio of light transmission to the entire surface of the sticker, and the dark side is seen from the bright side. In this case, the bright side can be seen through the through hole from the dark side (for example, see Patent Document 1).
[0003]
[Patent Document 1]
JP-A-8-30197
[0004]
[Problems to be solved by the invention]
However, the conventional see-through sticker has a problem that a large number of small-diameter through-holes are formed in a plastic film, so that an expensive and special perforation device is required and that a long time is required for manufacturing. Also, since it is necessary to adopt a procedure of perforating the film after printing and applying an adhesive, it is not possible for individuals or small businesses to manufacture transparent stickers printed with favorite designs and characters. Extremely difficult. For this reason, it has been difficult to provide a transparent sticker on which a desired design or character is printed according to an order (on demand).
In addition, when a film is perforated, a design or a character may be chipped or distorted and become ugly. In particular, a small character may become illegible, and a solution has been desired.
[0005]
The present invention has been made on the basis of the above-mentioned circumstances. One surface can be seen through (light-transmitting), and the other surface can be satisfactorily obstructed from the view (light-shielding). It is an object of the present invention to provide a (designable) transparent sticker that can be easily printed, is less likely to lose designs and characters, and is not illegible, and can be easily printed. .
[0006]
[Means for Solving the Problems]
In order to achieve the above-mentioned object, the present invention has excellent light-transmitting and light-shielding properties in place of the holes, and has excellent designability, without forming a hole in the film, by the gap between the printing layers. This is a transparent sticker.
That is, the present invention, on the surface of the transparent resin exposed side of the acrylic resin at least one surface of the acrylic resin, on the surface of the side where the acrylic resin is exposed, a fine patterned opaque print layer is laminated, An adhesive layer is laminated on the surface of the transparent substrate opposite to the surface having the printing layer,
The printing layer is formed by stacking a plurality of ink layers including a black ink layer, a white ink layer, and a color ink layer, and the color ink layer is disposed on the outermost layer of the stacked ink layers, and A transparent sticker characterized in that a white ink layer is provided between a black ink layer and a color ink layer.
Further, the present invention provides a vehicle and a building characterized in that the above-mentioned transparent sticker is attached to a window.
[0007]
Further, the present invention, as a method for producing the transparent sticker described above, to produce a pressure-sensitive adhesive sheet having a pressure-sensitive adhesive layer and a release sheet laminated on one surface of the transparent substrate, the transparent substrate in the pressure-sensitive adhesive sheet A method for manufacturing a transparent sticker, wherein the printing layer is formed by a hot-melt transfer method on a surface of the acrylic resin opposite to the pressure-sensitive adhesive layer where the acrylic resin is exposed.
[0008]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, the present invention will be described in detail based on embodiments.
FIGS. 1A and 1B are cross-sectional views illustrating an example of the structure of the see-through sticker according to the first embodiment of the present invention.
In this see-through sticker 10, reference numeral 2 is a transparent base material. The pressure-sensitive adhesive layer 3 is laminated on one surface of the transparent substrate 2, and the release sheet 4 is laminated on the surface of the pressure-sensitive adhesive layer 3 opposite to the transparent substrate 2, thereby forming the pressure-sensitive adhesive sheet 1. ing.
In the pressure-sensitive adhesive sheet 1, an opaque print layer 5 having a fine pattern of stripes, a matrix, and spots is provided on a surface of the transparent substrate 2 on a side opposite to the pressure-sensitive adhesive layer 3 by a fusion heat transfer method. I have. Here, the printing layer 5 is formed by laminating three ink layers 6 of a black ink layer 6k, a white ink layer 6w, and a color ink layer 6c in this order from the side of the transparent substrate 2.
[0009]
As the transparent substrate 2, a single-layer or multilayer film of a plastic having transparency is preferably used.
As a material of the transparent base material 2, a film made of an acrylic resin such as polymethyl methacrylate can be used from the viewpoint of adhesion to the printing layer 5 formed by the melt heat transfer method. In particular, when the acrylic resin is polymethyl methacrylate, the adhesion of the coloring agent in the melt heat transfer method is excellent, and even when the print layer 5 is overlaid and laminated in multiple layers, the base material is heated by the heat transfer. It is particularly preferable because wrinkles and distortion are hardly generated.
Further, as shown in FIG. 1B, the surface of the transparent film 2c is coated with an acrylic resin, or the acrylic resin film 2a is laminated with a laminating adhesive or a pressure-sensitive adhesive 2b. A transparent multilayer film in which the layer in contact with the print layer 5 is an acrylic resin 2a can also be used as the transparent substrate 2.
The transparent film 2c may be a film made of a resin other than an acrylic resin such as an acrylic resin film, a polyolefin film such as polyethylene or polypropylene, or a polyester film such as polyethylene terephthalate. The number of layers of the transparent multilayer film 2 is not particularly limited, and may have two or more layers such as a film and a coating. When the transparent substrate 2 is a transparent multilayer film, the acrylic resin 2a of the layer in contact with the print layer 5 is particularly preferably polymethyl methacrylate.
The transparent substrate 2 is preferably colorless and transparent, but may be colored transparent or translucent as long as it has sufficient translucency.
[0010]
The thickness of the transparent substrate 2 is preferably 20 to 150 μm, and more preferably 25 to 100 μm.
In order to improve the adhesion between the transparent substrate 2 and the pressure-sensitive adhesive layer 3, the surface of the transparent substrate 2 on which the pressure-sensitive adhesive layer 3 is provided is subjected to corona discharge treatment, plasma treatment, surface roughening treatment, flame treatment, A primer coating or the like may be applied.
[0011]
As the pressure-sensitive adhesive for forming the pressure-sensitive adhesive layer 3, an acrylic, urethane, silicone, rubber-based pressure-sensitive adhesive can be appropriately selected and used. From the viewpoints of weather resistance, light resistance, and the like, acrylic, urethane, and silicone pressure-sensitive adhesives are preferred. In particular, an acrylic pressure-sensitive adhesive is suitable. In order to ensure the transparency as the transparent sticker 10, a highly transparent one is preferable.
The thickness of the pressure-sensitive adhesive layer 3 is preferably 15 to 60 μm, and more preferably 20 to 40 μm.
[0012]
The adhesive strength of the adhesive may be appropriately selected depending on the application and purpose, for example, when peeling or re-attaching in a short period of time, a weak adhesive strength is preferably a removable adhesive, and also, for example, a sticker In the case where is left on a window glass or the like, a permanent adhesive type pressure-sensitive adhesive can be used.
In the case where the transparent sticker 10 is provided with a function of preventing the glass pieces from scattering when the window is broken, a strong adhesive may be used.
[0013]
The release sheet 4 is laminated so as to cover the pressure-sensitive adhesive surface of the pressure-sensitive adhesive layer 3 to protect the pressure-sensitive adhesive layer 3 of the pressure-sensitive adhesive sheet 1, and is peeled off before being attached to a window glass or the like and used. The release sheet 4 is not particularly limited, and a publicly known and commercially available product can be appropriately selected and used. Specifically, for example, on the surface of a paper-based sheet such as glassine paper, clay-coated paper, kraft paper, high-quality paper, or a plastic film such as polyethylene terephthalate or polypropylene, a fluororesin or a silicone resin is used. A release agent can be obtained by applying a release agent having a thickness of about 0.01 to 2 μm, curing the release agent by heating or irradiation with an electron beam or radiation, and providing a release agent layer.
When the printing layer 5 is formed by the thermal transfer method of the pressure-sensitive adhesive sheet 1, a plastic film such as polyethylene terephthalate or polypropylene is preferable from the viewpoint of smoothness and heat resistance required during thermal transfer printing.
[0014]
In order to form the pressure-sensitive adhesive layer 3 on one surface of the transparent substrate 2, for example, a known method such as a method in which a pressure-sensitive adhesive is applied to the release sheet 4, dried, and then bonded to the transparent substrate 2. Can be used.
[0015]
The printing layer 5 is formed by laminating three ink layers 6 of a black ink layer 6k, a white ink layer 6w, and a color ink layer 6c in this order from the side of the transparent substrate 2. The printing layer 5 is printed by, for example, using a printer of a fusion heat transfer method, by thermally transferring the ink obtained by mixing a coloring agent such as a pigment with a binder resin that is melted by heating on the surface of the adhesive sheet 1 in a fine pattern. It can be formed by performing.
[0016]
As the black colorant used for the black ink layer 6k, it is preferable to use a black pigment in terms of light-shielding properties, and examples thereof include carbon black and aniline black.
[0017]
As the colorant used in the color ink layer 6c, for example, a four-color colorant of cyan, magenta, yellow, black (CMYK), a three-color colorant of cyan, magenta, yellow (CMY), an appropriate single color Ingredients and pigments can be used as appropriate. In particular, a four-color colorant is preferable because it can develop a desired color and the design of the color ink layer 6c is improved.
[0018]
The white ink layer 6w is provided between the black ink layer 6k and the color ink layer 6c to prevent the appearance of the color ink layer 6c from appearing dark (color mixture) by the black ink layer 6k and to provide excellent design. It is provided in. For this reason, as the white colorant used in the white ink layer 6w, a white pigment having high hiding power is preferable, and for example, inorganic white pigments such as titanium oxide, barium sulfate, and calcium carbonate are preferable.
[0019]
Specifically, the pattern for forming the print layer 5 is a striped (striped) pattern as shown in FIG. 2A, or a matrix (net-like) pattern as shown in FIGS. 2B and 2C. 2), and spot-like patterns having continuous spots as shown in FIGS. 2D and 2E. Thus, a portion where the printing layer 5 is formed and a portion where the transparent substrate 2 is exposed as the gap 7 of the printing layer 5 are repeatedly provided in a fine pattern on the surface of the transparent substrate 2.
In the case of a spot-like pattern, the shape of the spot can be a square (FIG. 2D), a circle (FIG. 2E), or the like.
[0020]
The transparent sticker 10 attached to a window or the like is emitted from the bright side (for example, the outside of the vehicle when the target is an automobile) from the dark side (for example, the inside of the vehicle when the target is an automobile) through the gap 7. Since the amount of light is reduced as a whole, the dark side beyond the see-through sticker 10 can hardly be seen, and the design, characters, and the like printed as the print layer 5 become impressive. On the other hand, from the dark side, the light passing through the gap 7 can sufficiently see through the bright side. By repeatedly arranging the printing layer 5 and the gaps 7 in a fine pattern, sufficient transparency and light-shielding properties are imparted to the transparent sticker 10 without impairing the distinctiveness of the pattern, characters, and the like of the printing layer 5. be able to.
[0021]
The area ratio of the printing layer 5 to the entire surface of the transparent substrate 2 is preferably 30 to 90%, although it depends on the degree of light and dark contrast in the design, characters and the like formed on the printing layer 5. In applications mainly used for shading, the ratio may be 70 to 90%.
As the light-shielding property of the print layer 5, it is preferable that the light transmittance in a wavelength range of 200 to 2500 nm is less than 5%. The light transmittance of the gap 7 of the printing layer 5 is such that the transmittance of light passing through the transparent substrate 2 and the pressure-sensitive adhesive layer 3 is preferably in a range of 400 to 800 nm, more preferably 50% or more, and more preferably 80% or more. % Or more.
[0022]
For appropriate transparency and light-shielding properties, when the pattern is striped or matrix-shaped, the width W ₁ And interval W ₂ Is preferably about 0.2 to 5 mm.
When the pattern has a spot, the spot size D (for example, the length of one side if the spot is rectangular, and the diameter if it is circular) and the interval S are preferably about 0.2 to 5 mm.
These dimensions (W ₁ , W ₂ , D, and S) are preferably adjusted by the average distance between the transparent sticker 10 and a person who views the sticker, depending on the application and purpose.
In particular, the interval W of the printing layer 5 ₂ It is preferable that the interval S between the spots is smaller as the average distance of a person who sees the transparent sticker 10 is shorter. For example, in an application in which the see-through sticker 10 is attached to a window of a vehicle, a person who sees the see-through sticker 10 in the vehicle is considered to be located at a very close distance to the see-through sticker 10, so that the sticker is preferably set to 0. 0.2 to 2 mm, particularly preferably less than 0.8 mm.
When printing including small characters is necessary, the interval W such as a stripe of the printing layer 5 is set so that the characters can be read. ₂ It is preferable to make the interval S between the spots sufficiently small.
Also, as shown in FIGS. 2A, 2D, and 2E, a striped or spot-like pattern in which the printed portion is discontinuous cannot be created by the perforation processing, but the interval W ₂ Since a large print area ratio can be ensured even when S and S are reduced, this is a preferred embodiment when it is desired to achieve both fine patterns and high transparency. Furthermore, when using the fusion heat transfer method, since the printed portion is discontinuous, even when output with high energy, it becomes difficult for ribbon wrinkles to occur, so that a sharp pattern and high adhesion can be obtained. This is a preferred embodiment when outputting high energy.
[0023]
The print layer 5 can be formed by a fusion heat transfer method, a sublimation heat transfer method, an ink jet method, or the like. However, the print layer 5 having a sharp edge as shown in FIG. 3 can be easily formed. It is preferable to use a method.
As shown in FIG. 4, when the bottom of the printing layer 5 is remarkable, the transmittance of light in the gap portion 7 where the printing layer 5 is not formed is reduced to adversely affect the transparency, and the design and characters of the printing layer 5 It is not preferable because it becomes blurred or bleeding and becomes difficult to identify.
[0024]
The method for manufacturing the see-through sticker 10 of the present embodiment is not particularly limited, and can be manufactured according to a known sticker manufacturing method. For example, a pressure-sensitive adhesive is applied on a release sheet 4 to form a pressure-sensitive adhesive layer 3, and a transparent substrate 2 is attached to the pressure-sensitive adhesive layer 3 to form a pressure-sensitive adhesive sheet 1. By printing on the pressure-sensitive adhesive sheet 1 using a machine, the transparent substrate 2 can be manufactured by providing a multilayer printed layer 5 in a fine pattern on the surface opposite to the pressure-sensitive adhesive layer 3.
According to such a manufacturing method, a user such as a business operator purchases the adhesive sheet 1 and prepares a desired pattern or pattern as long as a commercial printing machine capable of printing fine patterns is prepared. By printing characters and the like in a fine pattern, the see-through sticker 10 of the present invention can be manufactured easily and in a short time.
[0025]
The shape and dimensions of the transparent sticker 10 manufactured in this way are not particularly limited, and can be appropriately set according to the application and purpose. As a method of setting the shape and dimensions of the see-through sticker 10, there is a method of punching out the desired shape and dimensions after forming the print layer 5.
[0026]
The transparent sticker 10 of the present embodiment is used by peeling off the release sheet 4 and sticking it to a window glass of a vehicle, a building or the like by the adhesive force of the adhesive layer 3.
For example, in the case where the inside of a vehicle such as a car such as a passenger car or a taxi tends to be dark, if the transparent sticker 10 is attached to the outside of the window glass, the color ink layer 6c is arranged on the bright outside of the vehicle, and is provided to a person outside the vehicle. Is impressed with a pattern, a character, and the like by the color ink layer 6c. As a result, it is possible to obstruct the view from the outside of the vehicle and make it difficult to see inside the vehicle, so that the person riding the vehicle does not care about the line of sight from outside the vehicle, and comfort is improved as a line of sight. Since the outside of the vehicle is clearly visible from the inside of the vehicle, there is no hindrance to driving, and no obstruction or closure of the interior space is felt. If the designs and characters of the color ink layer 6c are beautiful designs and character designs, the aesthetic appearance of the vehicle is not impaired and the impression of the surrounding people can be reduced.
[0027]
In the case where the outside of the vehicle tends to be dark, such as in a subway or a night bus, if the transparent sticker 10 is attached to the inside of the window glass, the color ink layer 6c is arranged on the inside of the vehicle. From the inside of the vehicle, it is possible to impressively see patterns, characters, and the like by the color ink layer 6c. If the design, characters, and the like by the color ink layer 6c are, for example, guidance displays and advertisements, it is possible to provide useful information to passengers.
Also, when the vehicle enters the station, the outside of the vehicle becomes brighter due to the illumination inside the station, so that the transparent sticker 10 can be seen through from inside the vehicle, and the station name display on the platform can be seen.
[0028]
Next, a transparent sticker according to a second embodiment of the present invention will be described. FIG. 5 is a cross-sectional view showing a schematic structure of the see-through sticker of the present embodiment.
The see-through sticker 20 has the same structure as that of the first embodiment except that the printing layer 5 is composed of three ink layers 6 of a color ink layer 6c, a white ink layer 6w, and a black ink layer 6k in this order from the side of the transparent substrate 2. It is configured similarly to the transparent sticker 10 of one embodiment. Here, the color ink layer 6c is arranged as the ink layer closest to the transparent substrate 2, but this is also included in the category of "the outermost layer of the laminated ink layers" in the claims. Things.
As in the first embodiment, the transparent sticker 20 of this embodiment can use a single-layer or multilayer film as the transparent substrate 2 and can be manufactured by the same method. However, the designs and characters of the color ink layer 6c are reverse-printed (mirror characters and the like) when the transparent sticker 20 is viewed from the front side opposite to the adhesive layer 3.
[0029]
In this way, by reversing the order of the ink layers of the printing layer 5 from that of the first embodiment, the release sheet 4 is peeled off and the transparent sticker 20 attached to the window glass or the like is attached to the adhesive layer 3. Can be seen from the side of the color ink layer 6c. Thereby, when the inside of the vehicle tends to be dark, the color ink layer 6c can be arranged on the bright outside of the vehicle by attaching the transparent sticker 20 to the inside of the window glass, and the outside of the vehicle is dark. In such a case, if the transparent sticker 20 is attached from the outside of the window glass, the color ink layer 6c can be arranged on the inside of the vehicle.
[0030]
That is, by appropriately selecting the see-through sticker 10 of the first embodiment and the see-through sticker 20 of the second embodiment, the see-through sticker is attached to the vehicle from the inside or from the outside. It becomes possible to set whether to use the type or not. For example, in the case of suppressing thermal cracking of the glass for reflection of sunlight by the see-through sticker, it is preferable that the sticker is attached from the outside of the vehicle, and also, the see-through sticker is prevented from being damaged or stained. For this purpose, it is preferable to adopt a configuration in which it is attached from the inside of the vehicle.
[0031]
Next, a transparent sticker according to a third embodiment of the present invention will be described. FIG. 6 is a cross-sectional view showing a schematic structure of the see-through sticker of the present embodiment.
The see-through sticker 30 has a printing layer 5 formed of five color ink layers of a color ink layer 6c, a white ink layer 6w, a black ink layer 6k, a white ink layer 6w, and a color ink layer 6c in this order from the transparent substrate 2. 6 except that the stickers 10 and 20 have the same construction as the transparent stickers 10 and 20 of the first and second embodiments. Here, the color ink layers 6c are arranged in two layers, an ink layer closest to the transparent substrate 2 and an ink layer farthest from the transparent substrate 2.
The see-through sticker 30 of the present embodiment can be manufactured by the same method as the see-through stickers 10 and 20 of the above-described embodiment.
[0032]
In this way, by arranging the color ink layer 6c on both sides of the printing layer 5, beautiful patterns and characters by the color ink layer 6c can be impressed from any side of the transparent sticker 30. You can see. If each color ink layer 6c expresses the same pattern or character, the same information can be obtained from either side of the transparent sticker 30. If each color ink layer 6c expresses a different design, character, or the like, the printed content on the front surface changes depending on the viewing direction, which increases fun.
Since the black ink layer 6k is arranged in the middle layer of the printing layer 5, the light shielding property and the heat ray absorbing property of the printing layer 5 can be made high. Since the white ink layer 6w is provided between the black ink layer 6k and the color ink layer 6c, the color of the color ink layer 6c can be suppressed from being dark and blurred by the black ink layer 6k, and the color is clear. Color printing can be performed.
[0033]
As described above, the present invention has been described based on the preferred embodiments. However, the present invention is not limited to only the embodiments, and various modifications are possible without departing from the gist of the present invention. .
For example, the number of ink layers constituting the printing layer is not particularly limited. For example, “color ink layer / white ink layer / black ink layer / black ink layer” or “color ink layer / white ink layer” A combination different from the above-described embodiment may be used, such as “/ black ink layer / white ink layer / black ink layer”.
[0034]
A transparent plastic film or the like can be laminated on the printing layer by a known method. Thereby, the printing layer can be protected and the weather resistance and durability can be improved.
The see-through sticker of the present invention can also be attached to windows, show windows, transparent glass doors, screens, partitions, and the like in buildings such as stores, houses, offices, factories, and the like. For example, in a restaurant, by sticking the see-through sticker of the present invention on a window, it is possible to give a good impression to a beautiful design without darkening the inside of the store and to block the eyes of outdoor pedestrians and the like. It can create a calm atmosphere.
Further, the present invention can be applied to vehicles and vehicles other than vehicles, such as windows of ships and ferris wheels.
[0035]
【Example】
[Example 1]
An acrylic resin-based pressure-sensitive adhesive (Dainippon Ink & Chemicals, Inc.) is applied to a release sheet 4 (product name: “SP-PET O1-BU”, manufactured by Tocelo Co., Ltd., 75 μm in thickness) formed by applying a silicone-based release agent to a polyester film. (Quickmaster SPS-1068) and 2 parts by weight of a trade name "Bernock NC-40" manufactured by Dainippon Ink and Chemicals, Inc.) were applied thereto, and an adhesive layer 3 having a thickness of 30 μm was applied. Formed. Next, a colorless transparent film (manufactured by Mitsubishi Rayon Co., Ltd., trade name “Acryprene HBS-006”, thickness 25 μm) made of polymethyl methacrylate resin was adhered to the pressure-sensitive adhesive layer 3 as the transparent substrate 2. Got.
[0036]
A thermal transfer printing machine (trade name “Durachrome” manufactured by YE Data Co., Ltd.) is used to perform thermal transfer printing on the pressure-sensitive adhesive sheet 1, and a black ink layer 6 k, a white ink layer 6 w, and a color in order from the transparent substrate 2 side. By forming the ink layer 6c, a printing layer 5 composed of three ink layers was provided on the surface of the transparent substrate 2 opposite to the pressure-sensitive adhesive layer 3.
[0037]
(A) Stripe (stripe) pattern: The print layer 5 has a stripe width W ₁ And interval W ₂ Was printed as a stripe pattern as shown in FIG. 2 (a), both having a thickness of about 0.5 mm (printing area: about 50%). A transparent sticker 10 of × 20 cm could be manufactured.
[0038]
(B) Matrix (striped) pattern: the print layer 5 has a width W of the print layer 5 ₁ Is about 1.1mm and the interval W ₂ When printed as a matrix pattern as shown in FIG. 2B of about 0.5 mm (printing area about 90%), there was no problem such as ribbon wrinkles, and ink adhesion and print density were 90 cm × 20 cm with satisfactory quality. Can be manufactured.
[0039]
[Example 2]
It was made in Example 1 on the PET film surface 2c of a pressure-sensitive adhesive film (manufactured by Dainippon Ink and Chemicals, Inc., trade name "DAITAC UVPET transparent 50FL-YM gloss", base material thickness 50 μm) using a polyester resin as the substrate 2c. By peeling and laminating the release sheet so that the pressure-sensitive adhesive surface 2b of the pressure-sensitive adhesive sheet 1 is in contact with the pressure-sensitive adhesive sheet 2, the polyester pressure-sensitive adhesive film comprising the base material 2c, the pressure-sensitive adhesive layer 3, and the release sheet 4 as shown in FIG. The pressure-sensitive adhesive sheet 1 of Example 2 in which the acrylic resin layer 2a was provided on the surface via the pressure-sensitive adhesive layer 2b was manufactured. Thereafter, when a transparent sticker 10 was manufactured in the same manner as in Example 1, both (A) the stripe-shaped (striped) pattern and (B) the matrix-shaped pattern had no problems such as ribbon wrinkles, ink adhesion, and print density. In both cases, a transparent sticker 10 of 90 cm × 20 cm with satisfactory quality was produced.
[0040]
[Comparative Example 1]
Example 1 except that a colorless transparent film substrate made of polyvinyl chloride resin (manufactured by Dainippon Ink and Chemicals, Inc., trade name “Dai-tak ML-6000A”, substrate thickness 50 μm) was used as the transparent substrate 2. In the same manner, the pressure-sensitive adhesive sheet 1 was manufactured, and then the transparent sticker 10 was manufactured in the same manner as in Example 1. As a result, (A) the striped (striped) pattern had no problems such as ribbon wrinkles, ink adhesion, Although a transparent sticker 10 of 90 cm × 20 cm with satisfactory print density was able to be produced, in the case of the matrix pattern (B), when the sensitivity of the print head was set high, ribbon wrinkles occurred, and the sensitivity of the print head was reduced. If it is set to a low value, a transparent sticker 10 having a quality that satisfies all of the conditions, such as insufficient ink adhesion and reduced print density, is manufactured. I couldn't do it.
[0041]
【The invention's effect】
As described above, the see-through sticker of the present invention is excellent in see-through and light-shielding properties, and can be easily and quickly manufactured by an individual or a small business by manufacturing a see-through sticker on which a desired pattern or character is printed. Can be implemented.
In addition, since perforation of the base material is not required, and printing can be performed at a fine resolution as needed, patterns and characters can be displayed in a legible manner, and the design is excellent.
[Brief description of the drawings]
FIG. 1A is a cross-sectional view illustrating an example of the structure of a see-through sticker according to a first embodiment of the present invention. (B) It is sectional drawing which shows the modification of the transparent sticker which concerns on 1st Embodiment.
FIG. 2 is a view illustrating a pattern of a printed layer of the see-through sticker according to the present invention, in which (a) a striped pattern, (b) a net pattern, (c) a rounded net pattern, and (d) a continuous pattern. FIG. 7A is a cross-sectional view showing a pattern having square spots, and FIG. 7E shows a pattern having continuous circular spots.
FIG. 3 is a cross-sectional view showing a print layer having sharp edges.
FIG. 4 is a cross-sectional view showing footing of a printing layer.
FIG. 5 is a cross-sectional view illustrating an example of the structure of a see-through sticker according to a second embodiment of the present invention.
FIG. 6 is a sectional view showing an example of the structure of a see-through sticker according to a third embodiment of the present invention.
[Explanation of symbols]
1 Adhesive sheet
2 Transparent substrate
2a Layer that print layer contacts
3 Adhesive layer
4 Release sheet
5 Printing layer
6 Ink layer
6c color ink layer
6k black ink layer
6w white ink layer
10, 20, 30 Transparent stickers

Claims (8)

On the surface of the transparent substrate where the acrylic resin is exposed on at least one surface, on the surface on the side where the acrylic resin is exposed, a fine patterned opaque print layer is laminated, and the transparent substrate An adhesive layer is laminated on the surface opposite to the surface having the printing layer,
The printing layer is formed by stacking a plurality of ink layers including a black ink layer, a white ink layer, and a color ink layer, and the color ink layer is disposed on the outermost layer of the stacked ink layers, and A transparent sticker, wherein a white ink layer is provided between a black ink layer and a color ink layer. The transparent sticker according to claim 1, wherein the transparent base material is a transparent multilayer film having an acrylic resin as a layer in contact with the print layer. The transparent sticker according to claim 1, wherein the fine pattern is a stripe, a matrix, or a spot. The transparent sticker according to any one of claims 1 to 3, wherein the printing layer is formed by a fusion heat transfer method. The transparent sticker according to any one of claims 1 to 4, wherein an area ratio of the print layer to the entire surface of the transparent substrate is 30 to 90%. A vehicle comprising the transparent sticker according to claim 1 attached to a window. A building, wherein the transparent sticker according to any one of claims 1 to 5 is attached to a window. It is a manufacturing method of the transparent sticker according to any one of claims 1 to 5,
A pressure-sensitive adhesive layer and a release sheet were laminated on one surface of the transparent substrate to produce a pressure-sensitive adhesive sheet, and the acrylic resin on the side opposite to the pressure-sensitive adhesive layer of the transparent substrate in the pressure-sensitive adhesive sheet was exposed. A method for producing a transparent sticker, wherein the printing layer is formed on a surface by a hot-melt transfer method.

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