JP2017049481A - Display sheet for installation on road surface, floor surface, or wall surface, and manufacturing set of display sheet for installation on road surface, floor surface, or wall surface - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a display sheet for installation on a road surface, floor surface, or a wall surface that prevents peeling off from an installation surface and delamination and has high strength, and a manufacturing set of a display sheet for installation on a road surface, floor surface, or a wall surface.SOLUTION: There is provided a display sheet 100 for installation on a road surface, floor surface, or a wall surface having an adhesion layer 10 for installation having a thickness of 50 μm or more, a base material 12 having a resin laminated on or impregnated in a fiber textile material, an image layer 14, an adhesive layer 16, and a protective layer 18 in this order; and a manufacturing set of a display sheet for installation on a road surface, floor surface, or a wall surface including a sheet for image formation having a peeling layer, an adhesion layer for installation having a thickness of 50 μm or more, and a base material having a resin laminated on or impregnated in a fiber textile material laminated in this order, and a protective sheet having a protective layer, an adhesive layer, and a peeling layer laminated in this order.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a display sheet for road surface, floor surface or wall surface installation, and a display sheet production set for road surface, floor surface or wall surface installation.

For the purpose of displaying information such as advertisements, direction instructions, traffic signs, road guides, alerts, etc., pasted on indoor or outdoor floors or walls, roads or parking lots, roads, floors or walls ( Hereinafter, a display sheet with a color, a pattern, or a character is used.
The display sheet that is attached to such a road surface is, for example, a white vinyl chloride sheet or a laminate of a white vinyl chloride sheet and an aluminum layer as a base material, and the road surface or the like on one surface of the base material. An adhesive layer for attaching is provided, an image according to the purpose is formed on the other surface of the substrate, and a transparent protective sheet is attached after image formation.

  Further, for example, in Patent Document 1, in an adhesive sheet having a base layer, a protective layer disposed on the surface of the base layer, and an adhesive layer disposed on the back surface of the base layer, the protective layer is And a surface modifier for modifying the surface of the protective layer, a cured resin, and inorganic oxide particles, and the adhesive sheet is disposed between the base layer and the protective layer and contains an elastomer. An adhesive sheet characterized by further having a cushion layer is disclosed.

  Patent Document 2 discloses a rubber sheet in which an adhesive layer is provided on a surface opposite to a surface to be in close contact with the floor surface in a floor marking sheet that is laid on the floor surface for advertising, guidance display, or floor decoration. And a sheet-like medium on which an advertisement, a guide sign, or a decorative pattern is recorded, the adhesive layer provided on one side of the medium and the adhesive layer of the rubber sheet facing each other A floor marking sheet is disclosed, in which a protective layer made of a flame-retardant resin is provided on the other surface of the media.

  Patent Document 3 discloses a base material made of canvas whose back surface is bonded to the floor surface, a front surface side synthetic resin composition layer formed on the surface of the base material, and a back surface side synthetic resin formed on the back surface of the base material. A composition layer, an ink layer formed on the front surface side synthetic resin composition layer, a slightly adhesive layer formed on the opposite side of the substrate of the back surface side synthetic resin composition layer, and a surface of the ink layer A display sheet having a formed antifouling coating layer is disclosed.

JP 2001-295454 A JP 2010-145903 A JP 2010-152246 A

In the configuration of the adhesive sheet disclosed in Patent Document 1, it is impossible to follow a road surface having a large uneven surface, and the adhesive sheet is easily peeled off from the installation surface.
Since the floor marking sheet disclosed in Patent Document 2 is not configured to adhere to a floor surface or the like, the position is easily shifted, and is not suitable for an application in which the floor marking sheet is installed at the same position over a long period of time.
The display sheet disclosed in Patent Document 3 is antifouling if it is installed on a road surface or the like for a long period of time, even if an antifouling coating layer is formed on the surface of the ink layer by applying a coating liquid containing a fluororesin or the like. The coating layer is easily peeled off, and the visibility of display by the ink layer is lowered. In a harsh environment place where there are many people, since there is no protective layer, the ink layer is also scraped and visibility is lowered.

  The present invention provides a display sheet for road surface, floor surface, or wall surface installation, and a display sheet preparation set for road surface, floor surface, or wall surface, which are unlikely to peel off from the installation surface and from the surface layer and have high strength. For the purpose.

In order to achieve the above object, the following means are provided.
<1> an adhesive layer for installation having a thickness of 50 μm or more;
A base material in which a resin is laminated or impregnated into a fiber knitted fabric;
An image layer,
An adhesive layer;
A protective layer;
The display sheet for road surface, floor surface or wall surface installation which has these in this order.
<2> The road surface, floor surface, or wall surface display sheet according to <1>, wherein the surface roughness Ra of the surface on the image layer side of the substrate is 10 μm or less.
<3> The display sheet according to <1> or <2>, wherein the base material is tarpaulin.
<4> The road surface, floor surface, or wall surface display sheet according to any one of <1> to <3>, wherein the base material has a thickness of 250 to 900 μm.
<5> The road surface, floor surface, or wall surface installation display sheet according to any one of <1> to <4>, wherein the installation adhesive layer has a thickness of 100 to 200 μm.
<6> The display sheet according to any one of <1> to <5>, wherein the adhesive layer has a thickness of 20 μm or more and less than 70 μm.
<7> The road, floor, or wall surface display sheet according to any one of <1> to <6>, wherein the adhesive layer includes an acrylic pressure-sensitive adhesive.
<8> The road surface, floor surface, or wall surface installation display sheet according to any one of <1> to <7>, wherein the protective layer is a layer containing a vinyl chloride resin.
<9> An image forming sheet in which a release layer, an adhesive layer for installation having a thickness of 50 μm or more, and a base material in which a resin is laminated or impregnated on a fiber knitted fabric are laminated in this order;
A protective sheet in which a protective layer, an adhesive layer, and a release layer are laminated in this order;
A display sheet production set for road, floor or wall surface installation.

  According to the present invention, a display sheet for road surface, floor surface, or wall surface installation, and a display sheet production set for road surface, floor surface, or wall surface installation, which is unlikely to peel off from the installation surface and from the surface layer and have high strength, Can be provided.

It is the schematic which shows an example of the laminated constitution of the display sheet for a road surface, a floor surface, or wall surface installation of this invention. It is the schematic which shows an example of the method of manufacturing the display sheet for a road surface, a floor surface, or wall surface installation of this invention. It is the schematic which shows an example of the state which installed the road surface, floor surface, or wall surface installation display sheet of this invention in the road surface.

  Hereinafter, embodiments of the present invention will be described in detail. In addition, "-" which shows a range in this-application specification means the range which contains the numerical value described before and behind that as a lower limit and an upper limit. Moreover, when a unit is attached | subjected only to the upper limit, it means that the lower limit is also the same unit.

[Road, floor or wall installation display sheet]
The road surface, floor surface, or wall surface installation display sheet of the present invention (hereinafter sometimes simply referred to as “display sheet”) has an adhesive layer for installation having a thickness of 50 μm or more, and a fiber knitted fabric laminated with a resin. It has an impregnated base material (hereinafter simply referred to as “base material”), an image layer, an adhesive layer, and a protective layer in this order.

  FIG. 1 schematically shows an example of the layer structure of the display sheet of the present invention. The display sheet 100 shown in FIG. 1 has a configuration in which an adhesive layer for installation 10, a substrate 12, an image layer 14, an adhesive layer 16, and a protective layer 18 are laminated in this order in the thickness direction of the display sheet. Have. The installation pressure-sensitive adhesive layer has a thickness of 50 μm or more, and the base material has a configuration in which a resin 12B is laminated on a fiber knitted fabric 12A as a support. Moreover, the peeling layer 20 is provided in the surface which affixes the adhesion layer 10 for installation to a road surface etc. When the display sheet 100 of the present invention is installed on a road surface or the like, the release layer 20 is peeled off from the installation adhesive layer 10 and bonded to a predetermined position on the road surface or the like via the installation adhesive layer 10.

In the display sheet of the present invention, the base material 12 in which a resin is laminated or impregnated into a fiber knitted fabric has higher tear strength and penetration strength than a simple resin layer or rubber layer, and exhibits high strength as a whole display sheet. can do. Moreover, since the base material 12 in the display sheet 100 of the present invention includes a fiber knitted fabric, it is excellent in cushioning properties and flexibility, easily follows irregularities such as road surfaces, and does not easily peel off from the installation surface. Further, peeling of the protective layer 18 serving as the surface layer portion is difficult to occur. In addition, the display sheet 100 of the present invention is installed by being attached to a road surface or the like via the installation adhesive layer 10, and the installation adhesive layer 10 has a thickness of 50 μm or more so that it can be more easily installed from the installation surface such as the road surface. It is difficult to peel off, and since the installation adhesive layer 10 has cushioning properties, the protective layer 18 that becomes the surface layer part is hardly peeled off.
Hereinafter, the configuration of the display sheet of the present invention will be specifically described. In the following description, reference numerals are omitted as appropriate.

<Adhesive layer for installation>
The installation adhesive layer 10 is a layer for attaching the display sheet of the present invention to a road surface, a floor surface, or a wall surface, and has a thickness of 50 μm or more.
As the adhesive contained in the installation adhesive layer, a known adhesive can be used. For example, rubber adhesive, acrylic, styrene, vinyl acetate-ethylene copolymer, vinyl chloride-vinyl acetate copolymer, etc., vinyl polymerization adhesive, polyester, etc., condensation polymerization adhesive, epoxy resin , Urethane resin-based, formalin resin-based thermosetting resin-based adhesives, silicone-based adhesives, and the like.
The pressure-sensitive adhesive contained in the pressure-sensitive adhesive layer for installation may be used alone or in combination of two or more.

Among them, the rubber-based pressure-sensitive adhesive is preferable in that it has high adhesive strength and water resistance, and the installation pressure-sensitive adhesive layer can easily have a thickness of 50 μm or more.
Examples of the rubber-based pressure-sensitive adhesive include styrene-butadiene copolymer (SBR, SBS), styrene-isoprene copolymer (SIS), acrylonitrile-butadiene copolymer (NBR), chloroprene polymer, isobutylene-isoprene copolymer ( Butyl rubber).
For example, butyl rubber-based adhesives and SIS-based adhesives are suitable for application to road surfaces because of their excellent water resistance. The SIS adhesive, which is a kind of thermoplastic elastomer, has particularly high adhesive strength, but it is difficult for the adhesive to remain on the installation surface when the display sheet of the present invention attached to the installation surface such as the road surface is peeled off from the installation surface. Is particularly preferable.

  The installation adhesive layer may contain a known additive, for example, a colorant, an antioxidant, an ultraviolet absorber, a silane coupling agent, a metal deactivator, and the like, if necessary.

In the display sheet of the present invention, the installation adhesive layer has a thickness of 50 μm or more, so that it exhibits surface contact with a large installation surface such as a road surface and exhibits high adhesive force, and the installation adhesive layer Since it is thick, it exhibits cushioning properties, is excellent in followability to the installation surface, and can effectively prevent peeling from the installation surface. If the adhesive layer for installation is too thick, the adhesive may protrude from the display sheet when the display sheet of the present invention is installed on a road surface or the like and is stepped on by a pedestrian or a vehicle. From this viewpoint, the thickness of the pressure-sensitive adhesive layer for installation is preferably 50 to 250 μm, more preferably 100 to 200 μm, and still more preferably 120 to 160 μm.
In addition, it is preferable that the thickness of the adhesive layer for installation is thinner than the thickness of a base material from a viewpoint which has high intensity | strength as a whole display sheet and makes the whole thickness as small as possible.

<Base material>
The display sheet of the present invention has a substrate 12 in which a resin 12B is laminated or impregnated on a fiber knitted fabric 12A. A base material in which a resin is laminated or impregnated in a fiber knitted fabric has flexibility and cushioning properties, and is excellent in tear strength and penetration strength. Therefore, the display sheet of the present invention has a high strength (tear strength and penetration strength) in which the unevenness of the installation surface such as the road surface is alleviated by the base material having the above configuration together with the installation adhesive layer having a thickness of 50 μm or more. It becomes a sheet.

  The base material on which the fiber knitted fabric is laminated or impregnated is a type in which the resin is laminated on one side of the fiber knitted fabric (the side opposite to the installation adhesive layer side) or both sides, or on the fiber knitted fabric A type in which the resin is impregnated is mentioned. For example, the base material which coated the fiber knitted fabric with resin may be sufficient, and the base material which laminated the resin film on the single side | surface or both surfaces of the fiber knitted fabric may be sufficient.

  Examples of the fiber knitted fabric used for the base material include synthetic fibers such as polyester fiber, polypropylene fiber, polyethylene fiber, nylon fiber, and vinylon fiber; natural fibers such as cotton and hemp; semi-synthetic fibers such as acetate; rayon and cupra Recycled fibers such as polynosic; multifilament yarns, short fiber spun yarns, monofilament yarns, split yarn yarns, tape yarn yarns, etc. composed of inorganic fibers such as glass fibers, silica fibers, alumina fibers, carbon fibers, etc. Woven fabric or knitted fabric using

  On the other hand, as the resin used for the substrate, a thermoplastic resin having flexibility at normal temperature is preferable. For example, soft vinyl chloride resin, vinyl chloride copolymer resin, olefin resin, olefin copolymer resin, urethane resin, urethane copolymer resin, acrylic resin, acrylic copolymer resin, vinyl acetate resin, acetic acid Vinyl-based copolymer resins, styrene resins, styrene-based copolymer resins, polyester resins, polyester-based copolymer resins, fluorine-containing copolymer resins, etc. can be used alone or in combination of two or more. . A resin composition in which a plasticizer or other additive is blended with these resins in order to impart flexibility. For example, a crosslinkable resin composition in which a crosslinking agent is added to a thermoplastic resin may be used.

  The color of the base material in the display sheet of the present invention is not limited, but since the base material is the background of the image layer, the base material is preferably opaque and more preferably white. For example, a white substrate can be obtained by using a white fiber knitted fabric or a resin mixed with a white pigment. Examples of the white pigment include titanium oxide, but are not limited thereto.

  Examples of the base material in which the resin is laminated or impregnated in the fiber knitted fabric include tarpaulin, tromat laminated with resin, canvas laminated with resin, and the like. Tarpaulin is particularly preferable from the viewpoints of flexibility, cushioning properties, strength, availability, printability, and the like. Tarpaulin is generally a polyethylene terephthalate (PET) fabric laminated with a white vinyl chloride resin, is excellent in cushioning and strength, and can be printed on the surface by a general ink jet device or the like. .

The thickness of the substrate is preferably 200 to 1000 μm. When the thickness of the substrate is 200 μm, the tear strength and penetration strength are excellent, and by having a high cushioning property, unevenness on the road surface and the like can be relaxed, and installation surface peeling and surface peeling can be suppressed. From this viewpoint, the thickness of the base material is more preferably 250 μm or more, and more preferably 300 μm or more.
On the other hand, when the thickness of the substrate is 1000 μm or less, the flexibility is high, the followability to the installation surface is excellent, and the installation surface peeling is suppressed. In addition, since the apparatus which can be used when forming an image layer on the surface of a base material will be limited when a base material is too thick, it is more preferable that the thickness of a base material is 900 micrometers or less, and it is 800 micrometers or less. Is particularly preferred.

In addition, the image layer is formed on the surface opposite to the adhesive layer for installing the substrate (image layer side surface), but if the surface roughness of the image layer side surface is too large, a protective layer is applied. At this time, air easily enters between the base material and the protective layer. When a display sheet is installed on the road surface with air in between the base material and the protective layer, rainwater and contaminants gradually enter due to capillary action, causing surface layer peeling, making it difficult to see the display on the image layer. Become. Therefore, the surface roughness Ra of the surface on the image layer side of the substrate is preferably 20 μm or less, more preferably 10 μm or less, and particularly preferably 6 μm or less.
On the other hand, if the surface (printing surface) on the image layer side of the substrate is too smooth, the anchor effect may be reduced and the adhesive strength of the protective layer may be reduced. Therefore, the surface roughness Ra of the surface on the image layer side of the substrate is preferably 0.5 μm or more, more preferably 1 μm or more, and particularly preferably 2 μm or more.
Here, the surface roughness Ra of the substrate is based on JIS B 0601 using a stylus type roughness meter FORMRTRACER EXTREME CS-5000CNC (manufactured by Mitutoyo Co., Ltd.). It is a value measured and calculated as the average value.

<Image layer>
In the display sheet of the present invention, the image layer 14 is formed on one side (the side opposite to the installation adhesive layer side) of the base material 12 in which a resin is laminated or impregnated in a fiber knitted fabric.
The image layer is a layer on which an image representing information such as advertisements, direction instructions, traffic signs, and route guidance is formed, and may be a layer on which a desired image is formed.
The image layer may be a layer containing an arbitrary image, but preferably has at least an ink layer.
The image layer may be formed on the entire surface of the substrate, or may be formed on a part of the substrate. As for unevenness that occurs when the image layer is formed only on a part of the substrate or when the image layer is not formed with a uniform thickness, it is preferable to flatten the unevenness with an adhesive layer described later.

The ink for forming the ink layer is not particularly limited, and may be a solvent ink, a water-based ink, an ultraviolet curable ink, or a hybrid ink.
The color of the image in the image layer is not particularly limited, and may be a single color image, an image of two or more colors, or a full color image, and the ink may be a single color only. Two or more colors may be used.
There is no restriction | limiting in particular as a formation method of an image, It can form suitably by means, such as inkjet printing, screen printing, gravure printing, and thermal transfer printing, using an ink.

  The thickness of the image layer is not particularly limited, but is preferably 10 to 200 μm, more preferably 20 to 100 μm, from the viewpoint of ensuring ink adhesion and reducing the total thickness.

<Adhesive layer>
The adhesive layer 16 is provided between the image layer 14 and the protective layer 18.
In the present invention, “adhesion” includes the concept of “adhesion”, and the adhesive layer 16 is a layer formed of an adhesive or an adhesive. When the display sheet of the present invention is manufactured, as described later, the release layer is peeled off from the protective sheet in which the protective layer, the adhesive layer, and the release layer are laminated in advance, and the image layer side of the image forming sheet From the viewpoint of attaching to the adhesive layer, the adhesive layer is preferably formed to contain a pressure-sensitive adhesive.

There is no restriction | limiting in particular as an adhesive which can be used for the contact bonding layer 16, A well-known adhesive can be used. For example, rubber-based, acrylic-based, urethane-based, polyester-based, and silicone-based pressure-sensitive adhesives can be used. In addition, since the image by an image layer is visually recognized through an adhesive layer and a protective layer, it is preferable that the protective layer and the adhesive layer have higher light transmittance. From the viewpoint of light transmittance, an acrylic pressure-sensitive adhesive can be suitably used. Here, the acrylic pressure-sensitive adhesive means a pressure-sensitive adhesive mainly composed of acrylic acid and a derivative (such as acrylate) (preferably 50% by mass or more).
Furthermore, the adhesive layer 16 is preferably a transparent layer, and more preferably a colorless and transparent layer, from the viewpoint of improving the visibility of the image by the image layer.
In addition, the transparency in this invention is that the transmittance | permeability of visible light (wavelength 400-760 nm) is 80% or more, and it is preferable that it is 90% or more.

Specific examples of the acrylic pressure-sensitive adhesive include SK Dyne (registered trademark) 1310, 1435, SK Dyne 1811L, SK Dyne 1888, SK Dyne 2094, SK Dyne 2096, SK Dyne 2137, SK Dyne 3096, manufactured by Soken Chemical Co., Ltd. Suitable examples include SK Dyne 1852, manufactured by Toyochem Co., Ltd., BPS5961, BPS4622, BPS4849-40, BPS6130TF, BPS6078TF, EG354J, BPS5296, BPS5963 and the like.
Since the acrylic pressure-sensitive adhesive alone has a low cohesive force, it is preferably crosslinked with a crosslinking agent. As such a crosslinking agent, an isocyanate compound, an epoxy compound, an aziridine compound, a metal chelate compound, or the like is preferably used.
Furthermore, the acrylic pressure-sensitive adhesive includes a curing accelerator (for example, Toyochem Co., Ltd., BXX3778-10, BXX4805, etc.), a retarder (for example, Toyochem Co., Ltd., BXX5638, etc.), a curing agent (for example, Toyochem Co., Ltd., BXX6269, etc.) and other additives (for example, Toyochem Co., Ltd., BXX6342 etc.) are preferably used.

  The thickness of the adhesive layer 16 is preferably 10 to 80 μm. If the thickness of the adhesive layer is 10 μm or more, it is possible to increase the adhesive strength of the protective layer and effectively suppress the peeling of the protective layer (surface peeling). In addition, since the adhesive layer has a thickness of 80 μm or less, it has high light transmittance, can improve the visibility of images, and the adhesive protrudes from the display sheet installed on the road surface or the like to contaminate the surroundings. It is suppressed. From this viewpoint, the thickness of the adhesive layer is more preferably 20 μm or more and less than 70 μm, and further preferably 30 to 60 μm.

<Protective layer>
The protective layer 18 is a layer that protects the display sheet from abrasion, scratches, and the like, and is affixed to the substrate 12 via the adhesive layer 16 in the image layer 14 or in a region where the image layer 14 is not formed. .

The material of the protective layer is preferably a resin, such as vinyl chloride resin, polyethylene terephthalate (PET), polyethylene terephthalate (PET-G) partially copolymerized (copolycondensation) with cyclohexanedimethanol, acrylic resin, polycarbonate , Polystyrene, nylon, high-density polyethylene (PE), and the like, and vinyl chloride resin is more preferable from the viewpoints of strength as a protective layer, light transmittance, flexibility, and the like. Here, the vinyl chloride resin may be a homopolymer of vinyl chloride or a copolymer of vinyl chloride and other monomer components.
Moreover, it is preferable to use a resin sheet as resin used for a protective layer.
The protective layer is preferably a transparent layer, and more preferably a colorless and transparent layer, from the viewpoint of improving the visibility of the image in the image layer.

The protective layer may have a single layer structure or a laminated structure of two or more layers.
When the protective layer has a laminated structure of two or more layers, in order to bond the layers, an adhesive layer may be provided between the layers as necessary. There is no restriction | limiting in particular as an adhesive agent used for the contact bonding layer which adhere | attaches two or more protective layers, A well-known adhesive agent can be used.

The protective layer in the display sheet of the present invention is preferably the outermost layer.
Moreover, it is preferable that a protective layer has an uneven | corrugated structure in the outermost surface side. The protective layer has a concavo-convex structure on the outermost surface side, is superior in strength, and when used as a floor sign, not only the strength, but also prevents slipping when the display sheet of the present invention is stepped on, and prevents falls, etc. Excellent slip resistance.
The concavo-convex structure on the outermost surface side of the protective layer is not particularly limited, and may be an irregular concavo-convex structure or a regular concavo-convex structure, a hemispherical concavo-convex structure, or a thickness portion of the protective layer. An uneven structure having a trapezoidal surface portion in the cross section can be exemplified.

  The thickness of the protective layer is preferably 20 to 1000 μm, more preferably 50 to 600 μm, and still more preferably 100 to 400 μm. Within the above range, the penetration strength is excellent, the wear resistance is excellent, and the tripping prevention property when pasted on a floor surface or road surface is excellent.

  The thickness of the display sheet of the present invention is preferably 100 to 2500 μm as the thickness including the pressure-sensitive adhesive layer for installation, the substrate, the image layer, the adhesive layer, and the protective layer, and any layer described later, and 150 More preferably, it is -2000 micrometers, It is still more preferable that it is 200-1800 micrometers, It is especially preferable that it is 500-1800 micrometers. It is excellent in intensity | strength as it is the said range, and it is excellent in durability, Furthermore, when installing in a floor surface or a road surface, it can prevent that a pedestrian stumbles.

The shape in the surface direction of the display sheet of the present invention is not particularly limited, and can be any shape and size as desired. For example, in the case of a floor sign, it may have a quadrangular shape, a circular shape, or an arrow shape.
The display sheet of this invention may have other layers other than the adhesion layer, a base material, and a protective layer as needed.

<Peeling layer>
The display sheet of the present invention preferably has a release layer 20 on the surface opposite to the side in contact with the base material 12 of the installation adhesive layer 10 as a form before installation on the road surface or the like.
The release layer is a layer that prevents the adhesive layer from sticking to a portion other than the desired surface to which the display sheet of the present invention is attached, such as a known release paper, release film, release paper, release film, separator, etc. Can be suitably used.
Examples of the release layer include a layer obtained by adding a release agent to paper or a resin film.
Although it is related also to the material of the adhesion layer for installation as a release agent, a well-known release agent can be used and a silicone type release agent and a fluorine-type release agent are mentioned preferably.
As the release film used for the release layer, a film in which a film base material such as polyester is coated with a release agent such as silicone is suitably used.
Specific examples of the release film include Toray Film Processing Co., Ltd. Therapy (registered trademark) WZ, BKE, BX8A, and the like.
The thickness of the release layer is preferably 10 to 500 μm, more preferably 30 to 300 μm, and still more preferably 50 to 200 μm.

Moreover, the display sheet of this invention may have other layers other than the above.
For example, the display sheet of the present invention may further have a release layer on the protective layer so as not to be scratched or soiled before being attached as a floor sign or the like.
As the release layer on the protective layer, known slip sheets, resin films, release papers, release films, release papers, release films, and separators can be suitably used.

[Method of manufacturing display sheet for road surface, floor surface or wall surface installation]
Next, the manufacturing method of the display sheet for road surface, floor surface, or wall surface installation of this invention is demonstrated.
The method for producing the display sheet according to the present invention is not particularly limited. For example, a desired image layer is formed by printing on one side of a base material such as tarpaulin with an ink jet apparatus. Next, an adhesive layer is provided on the side on which the image layer is formed and a protective layer is pasted, and an adhesive layer for installation having a thickness of 50 μm or more is applied and formed on the opposite surface of the substrate. Sheets can be manufactured. From the viewpoint of manufacturability, for example, a release layer, an adhesive layer for installation having a thickness of 50 μm or more, and a substrate in which a resin is laminated or impregnated on a fiber knitted fabric are laminated in this order. Prepare a display sheet preparation set for road surface, floor surface or wall surface installation, including a sheet and a protective sheet in which a protective layer, an adhesive layer, and a release layer are laminated in this order, on the base of the image forming sheet After the image layer is formed, a method in which the image forming sheet and the protective sheet are bonded together through an adhesive layer of the protective sheet is preferable.

FIG. 2 shows a method for producing a road surface, floor surface, or wall surface display sheet of the present invention using a road surface, floor surface, or wall surface display sheet manufacturing set including the image forming sheet and the protective sheet as described above. It is the schematic which shows an example.
First, as shown in FIG. 2A, the release layer 20, the installation adhesive layer 10 having a thickness of 50 μm or more, and the base material 12 in which the resin 12B is laminated or impregnated on the fiber knitted fabric 12A are in this order. A laminated image forming sheet 30 is prepared. The release layer in the image forming sheet, the installation adhesive layer, and the base material in which the resin is laminated or impregnated with the fiber knitted fabric are the release layer, the installation adhesive layer, and the base material in the display sheet of the present invention described above. Each is synonymous and the preferred embodiment is also the same. For example, a butyl rubber adhesive can be applied to a substrate by calendar coating, and an SIS adhesive can be applied to a substrate by hot melt coating.

  The total thickness of the image forming sheet is preferably 200 to 1000 μm from the viewpoints of suppression of peeling on the installation surface, strength, printability, and the like. If the image forming sheet is too thick, the number of printing devices that can be used when forming the image layer on the surface of the substrate is limited. Therefore, the thickness of the image forming sheet is more preferably 900 μm or less. 800 μm or less is particularly preferable.

  As shown in FIG. 2B, the image layer 14 is formed on the surface of the prepared image forming sheet 30 on the substrate 12 side. The method for forming the image layer is not particularly limited. For example, the image layer may be formed by a desired printing method such as ink jet printing, screen printing, gravure printing, or thermal transfer printing.

After the image layer is formed on the substrate, the adhesive layer 16 of the protective sheet 40 in which the protective layer 18 and the adhesive layer 16 are laminated is used as the image layer 14 of the image forming sheet 30 as shown in FIG. Paste to.
The protective sheet is preferably provided with a release layer (not shown) on the surface opposite to the protective layer of the adhesive layer as a form before being bonded to the image forming sheet. The release layer in the protective sheet is a layer that prevents the adhesive layer from sticking to other than the image forming sheet before bonding, and is preferably a known release paper, release film, release paper, release film, or separator. Can be used.
The release layer in the protective sheet is the same as the release layer in the display sheet of the present invention described above.

  The thickness of the protective sheet is preferably 30 to 1000 μm, more preferably 50 to 800 μm, and still more preferably 100 to 600 μm.

  And a peeling layer is peeled from the adhesive layer of a protective sheet, and the adhesive layer side of a protective sheet is affixed on the side in which the image layer of the image forming sheet was formed. Thereby, as shown in FIG. 1, the display sheet 100 of this invention which has the peeling layer 20 in the adhesion layer side for installation is obtained.

When the display sheet of the present invention is installed on a road surface or the like, the release layer on the installation adhesive layer side may be released and attached to a predetermined installation surface via the installation adhesive layer.
FIG. 3 is a schematic view showing an example of a state where the display sheet of the present invention is attached to a road surface. As shown in FIG. 3, the display sheet 100 of the present invention has a thick installation pressure-sensitive adhesive layer 10 so that the display sheet 100 adheres firmly to the road surface 50 while being in surface contact. Moreover, since the base material 12 has a softness | flexibility, it follows the unevenness | corrugation of the road surface 50, and peeling from the road surface 50 is suppressed. Moreover, since the base material 12 also has cushioning properties, the unevenness of the road surface 50 is relaxed, and the image layer side is strongly bonded to the protective layer 18 via the adhesive layer 16 to effectively suppress the peeling of the protective layer 18. Can do.

The display sheet of the present invention is a sheet that can be suitably affixed to road surfaces such as asphalt and concrete, and indoor and outdoor floor surfaces and walls such as resin, wood, and concrete, and is affixed to the road surface or floor surface. It can use suitably as a display sheet to install.
In addition, the display sheet of the present invention is a so-called floor sign sheet that is affixed to a floor surface or a road surface on which pedestrians or vehicles come and go for advertising, direction instructions, traffic signs, road guidance, alerting, etc. It can be used suitably.

  In addition, since the display sheet of the present invention hardly peels off from the installation surface or peels off the surface layer, it has high strength (tear strength and penetration strength). Also excellent.

  The present invention will be described more specifically with reference to the following examples. The materials, amounts used, ratios, processing details, processing procedures, and the like shown in the following examples can be changed as appropriate without departing from the spirit of the present invention. Therefore, the scope of the present invention is not limited to the examples shown below. Unless otherwise specified, “part” is based on mass.

[Example 1]
Tarpaulin (ME-400 manufactured by Kuraray Plastics Co., Ltd., thickness 400 μm) is prepared as a base material, and a rubber adhesive (styrene-isoprene copolymer) is used as an adhesive layer for installation on the surface opposite to the printed surface of tarpaulin. ) Was applied, and a separator (manufactured by Sanei Kaken Co., Ltd., SK separator, RFE100N) was applied as a release layer.
Here, when the surface roughness Ra of the printing surface of the tarpaulin was measured by the method described above, it was 5 μm.

  Next, black printing was performed on the tarpaulin printing surface using a solvent-based printing machine (Mimaki Engineering Co., Ltd., JV5-160S) to form an ink layer (image layer).

Next, a vinyl chloride sheet protective layer (Fuji Film Imaging Systems Co., Ltd., Floor Star III, thickness 0.6 mm) coated with an acrylic adhesive as an adhesive layer is bonded to the printed surface side on which the ink layer is formed. A test sample (road surface, floor surface or wall surface display sheet) was prepared.
The thickness of the obtained test sample was 1275 μm.

Various evaluations were performed by the following methods using the obtained test samples. The evaluation results are shown in Table 1.
After the primer was applied to the asphalt surface and allowed to dry naturally, the separator of the test sample was peeled off, and the adhesive layer surface for installation was brought into contact with the asphalt surface. Thereafter, the protective layer surface of the test sample was hit with a rubber hammer and placed under pressure.

<Surface peel test>
The color of the protective layer surface after 3 months from the placement of the test sample was visually observed. When the protective layer and the ink layer are peeled off, it becomes white. The evaluation criteria are shown below.
B: Color change is less than 5% of the display side area of the display sheet C: Color change is 5% or more and less than 10% of the display side area of the display sheet D: Color Taste change is 10% or more of the display side area of the display sheet

<Road peel test>
The road surface adhesion after 3 days from the installation of the test sample was evaluated. The road surface adhesive strength was calculated with a tensile tester (manufactured by A & D Co., Ltd., RTF-1310) according to JIS Z 0237 (2009).
A: 60N or more B: 50N or more and less than 60N C: 30N or more and less than 50N D: Less than 30N

<Strength evaluation>
-Tear test-
The tear test was conducted according to JIS K 7128 (1998) by performing a tear strength test with a tensile tester (manufactured by A & D Co., Ltd., RTF-1310), and calculating a tear strength value. The evaluation criteria are shown below.
A: 60N or more B: 50N or more and less than 60N C: 30N or more and less than 50N D: Less than 30N

-Puncture test-
The puncture test was conducted according to JIS Z 1707 (1997) by performing a puncture strength test with an indentation tester (manufactured by A & D Co., Ltd., RTF-1310), and calculating a puncture strength value. The evaluation criteria are shown below.
A: 60N or more B: 50N or more and less than 60N C: 30N or more and less than 50N D: Less than 30N

[Examples 2 to 18 and Comparative Examples 1 to 5]
Except having changed the structure of each layer into the thing of Table 1, it is the same as that of Example 1, and the sample for a test (Example of a road surface, a floor surface, or a wall surface installation sheet) of Examples 2-18 and Comparative Examples 1-5 ) Were prepared.
Using the obtained test samples, the above various evaluations were performed in the same manner as in Example 1. Table 1 summarizes the main structure and evaluation results of the display sheet.

Among the configurations of the respective layers described in Table 1, details of those other than those described above are as follows.
Tarpaulin (base material): Kuraray Plastics Co., Ltd., ME-400
Tromat (base material): Etromat CT manufactured by Maruwa Kogyo
Vinyl chloride layer (base material): GIY-11Z5, manufactured by Lintec Sign System Co., Ltd.
Rubber type (adhesive layer for installation): Styrene-isoprene copolymer PET (protective layer): Cosmo Shine (registered trademark) A4300 manufactured by Toyobo Co., Ltd.

As shown in Table 1, in Examples 1 to 18, the surface layer peel strength and road surface peel strength are high, and the tear strength and penetration strength are also excellent, and both the peel resistance and the strength are compatible.
On the other hand, in Comparative Example 1, the installation adhesive layer is thin, and the road surface peel strength is insufficient. Moreover, in Comparative Examples 2-5 which did not use the base material which resin laminated | stacked or impregnated the fiber knitted fabric as a base material, it became a result with insufficient peeling resistance or intensity | strength.

DESCRIPTION OF SYMBOLS 10 Adhesive layer for installation 12 Base material in which resin is laminated or impregnated on fiber knitted fabric 14 Image layer 16 Adhesive layer 18 Protective layer 20 Release layer 100 Display sheet for road surface, floor surface or wall surface installation

Claims (9)

An adhesive layer for installation having a thickness of 50 μm or more;
A base material in which a resin is laminated or impregnated into a fiber knitted fabric;
An image layer,
An adhesive layer;
A protective layer;
The display sheet for road surface, floor surface or wall surface installation which has these in this order.   The road surface, floor surface, or wall surface display sheet according to claim 1, wherein the surface roughness Ra of the surface of the base material on the image layer side is 10 μm or less.   The road surface, floor surface, or wall surface display sheet according to claim 1 or 2, wherein the base material is tarpaulin.   The road surface, floor surface, or wall surface display sheet according to any one of claims 1 to 3, wherein the base material has a thickness of 250 to 900 µm.   The road surface, floor surface, or wall surface installation display sheet according to any one of claims 1 to 4, wherein the installation adhesive layer has a thickness of 100 to 200 µm.   The road surface, floor surface, or wall surface display sheet according to any one of claims 1 to 5, wherein the adhesive layer has a thickness of 20 µm or more and less than 70 µm.   The road surface, floor surface or wall surface display sheet according to any one of claims 1 to 6, wherein the adhesive layer is a layer containing an acrylic pressure-sensitive adhesive.   The said protective layer is a layer containing a vinyl chloride resin, The display sheet for a road surface, floor surface, or wall surface installation of any one of Claims 1-7. An image forming sheet in which a release layer, an adhesive layer for installation having a thickness of 50 μm or more, and a base material in which a resin is laminated or impregnated in a fiber knitted fabric are laminated in this order;
A protective sheet in which a protective layer, an adhesive layer, and a release layer are laminated in this order;
A display sheet production set for road, floor or wall surface installation.

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