JP2001115112A - Non-slip tape - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prepare a non-slip tape which is easy to produce, and in addition, can exhibit a high non-slip effect without reducing recognizability of a pattern, or the like, depicted on the display layer. SOLUTION: This non-slip tape is constituted by comprising a transparent film substrate, a display layer having a pattern, or the like, formed on the back of the film substrate, and a transparent resin layer which covers the surface of the film substrate and in which non-slip particles composed of an alumina based material having a predetermined level of refractive index have been dispersed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an anti-slip tape, and more particularly, to a slip which can exhibit a high anti-slip effect without deteriorating the visibility of a pattern drawn on a film-like base material. About prevention tape.

[0002]

2. Description of the Related Art Anti-slip tapes having a display layer made of a pattern or the like have been conventionally known, as is well known. For example, JP-A-51-17974 discloses that a transparent resin composition layer 14 is formed on a sheet 15 provided with a pattern 16 as shown in a perspective view in FIG. A resin-permeable transparent sheet 13 having on its surface hard particles 11 adhered with an adhesive is placed, and the sheet is further impregnated with a transparent resin composition so that one end of the particles 11 substantially has a transparent resin composition. A method for producing a patterned anti-slip material, characterized in that the resin layer is cured while being exposed from the material layer 14 and both sheets are adhered to each other. In this case,
It is necessary to bond the hard particles 11 discontinuously in order to prevent the underlying pattern from being hidden, and the total area of the particle bonding portion is 1 to 50%, preferably 5 to 20% of the sheet area.
It is. However, in the non-slip material obtained in this manner, there is a problem that a part of the pattern 16 is hidden by the hard particles 11 as can be understood from the drawing. In addition, since the configuration in which the transparent resin composition layer 14 is stacked on the pattern 16 to fix the hard particles 11 is adopted, the transparency is reduced, and the pattern 16 when the anti-slip material is observed from the surface thereof is reduced. There is also a problem that visibility is reduced.

Japanese Patent Application Laid-Open No. 8-326254 discloses a base sheet, a display layer formed by applying a coating material on the upper surface of the base sheet and displaying predetermined contents, the base sheet and the display layer. A top surface layer formed on the top surface side of the layer and containing a large number of non-slip particles, wherein the top surface layer is capable of seeing through the contents of the display layer; A stop sheet and a method of manufacturing the same are disclosed. The top surface layer can be preferably formed by forming a first adhesive layer, then attaching non-slip particles to the surface thereof, and forming a second adhesive layer thereon. According to this non-slip sheet, it is possible to solve the problem of lowering the visibility of the display layer, but another problem occurs. For example, in this non-slip sheet, since the non-slip particles are directly adhered to the display layer using an adhesive, there is a problem that the display layer is restricted by the adhesive used. For example, when the display layer is formed by a gravure printing method using an organic solvent type paint (ink), the formed display layer may be attacked. The mold adhesive cannot be used. In general, when the adhesive covers the non-slip particles, the non-slip particles can be firmly fixed to the display layer. There are no adhesives, and even if the adhesive has excellent transparency, the transparency will be reduced by stacking many layers,
The display effect is diminished. Furthermore, in the non-slip sheet of the present invention, non-slip particles directly contact the display layer, and frequent traffic of passersby exerts a great deal of gravity on the display layer. Deformation or damage.

[0004]

SUMMARY OF THE INVENTION The present invention solves the above-mentioned problems of the prior art, is easy to manufacture, and reduces the visibility of a pattern or the like drawn on a display layer. An object of the present invention is to provide an anti-slip tape that can exhibit a high anti-slip effect without deforming or damaging the tape itself.

[0005]

According to the present invention, as a means for solving the above-mentioned problems, a transparent film-like substrate and a pattern formed on the back surface of the film-like substrate are provided. Characterized by comprising a display layer and a transparent resin layer which covers the surface of the film-shaped substrate and in which non-slip particles made of an alumina-based material are dispersed. A prevention tape is provided.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION
A transparent film is used as a substrate, and a display layer is provided on the back surface of the substrate. The film-shaped substrate used here has a sufficiently high level of transparency (light transmission) to enable the see-through of the display layer, and the display layer is provided on the back surface of the substrate. There is no particular limitation as long as it can be formed. Suitable film-like substrates include various plastic films, for example, polyester films, nylon films, polyvinyl chloride films, ethylene-vinyl acetate copolymer films, polypropylene films, polyethylene films and the like. Such a plastic film may be used as it is manufactured, or otherwise, surface treatment such as corona discharge treatment, primer treatment, etc. to promote formation of the display layer and adhesion of the transparent resin layer. May be used after applying.

[0007] The thickness of such a film-shaped substrate can be widely varied depending on the desired thickness of the anti-slip tape and the site where it is used.
5 mm, preferably 0.05 to 0.2 mm.
If the thickness of the film-like substrate is less than 0.01 mm, the strength of the anti-slip tape is reduced, and the tape is easily damaged by, for example, frequent traffic. On the other hand, when the thickness of the film-shaped base material is more than 0.5 mm, the end of the anti-slip tape protrudes from the flat floor surface, which may obstruct walking.

In the anti-slip tape according to the present invention, a display layer having a predetermined pattern or the like is formed on the back surface of the above-mentioned film-like base material. Here, the term “pattern or the like” is used in a broad sense, and refers to, for example, characters, symbols, designs, and the like, which are often employed as display patterns on anti-slip tapes, and combinations thereof. In addition, the size of such a pattern or the like is arbitrary, and includes small to large sizes. For example, when the display layer includes characters, if the size of the alphabet is 8 points or more,
Will be fully recognizable. Also, in consideration of actual use, it is desirable that the size of the alphabet is 20 points or more. Further, such a pattern or the like may be a single color or a multicolor. Specifically, examples of the pattern include a white line provided on a platform of a station, a yellow / black diagonal pattern provided on a sidewalk or the like to call attention, and a display of "slip attention" on a stair. be able to. Therefore, the display layer may be formed entirely on the back surface of the film-shaped substrate, or may be partially formed.

Such a pattern of the display layer and the like can be changed in various ways depending on the type, location of the anti-slip tape, desired effect, and the like, and can be formed by using various methods. You can also. The pattern and the like can be formed using a conventional printing technique such as gravure printing, letterpress printing, and screen printing. The printing ink is preferably an oil-based ink in terms of resistance and the like, but may be a water-based ink if necessary. When a special effect or the like is expected, the pattern of the display layer may be formed to have, for example, a fluorescent property, a light storing property, a retroreflective property, or the like. Further, the pattern and the like may be formed by a technique other than printing as needed. For example, a sheet cut or punched into a shape such as a pattern may be affixed to the back surface of the film-like substrate via an adhesive layer, otherwise, using a transfer sheet already provided with a pattern or the like The pattern or the like may be transferred to the back surface of the film substrate.

In the case of the anti-slip tape of the present invention, anti-slip particles are applied to the surface of the film-shaped substrate, ie, the surface having no display layer. These non-slip particles
Rather than being fixed with an adhesive as in the conventional case, it is applied in a form embedded in a transparent resin layer. An alumina-based material is used as the non-slip particles. Also, such non-slip particles can be used in various shapes and sizes. For example, the shape of the particles may be a sphere, a plate, or the like, in addition to a small sphere that is easily commercially available. These particles preferably have a particle size in the range of # 12 to # 120 when expressed according to JIS standards. Particle size of anti-slip particles is # 12
If it is smaller than 0, it is difficult to obtain the anti-slip effect, while if it is larger than # 12, the particles are hardly fixed. Also,
The preferred distribution density of such non-slip particles is usually
It is in the range of 0.005 to 0.05 g / cm ² . If the distribution density of the anti-slip particles is less than 0.005 g / cm ² , the anti-slip effect will be difficult to obtain, and the durability will also decrease. Conversely, if the distribution density of the non-slip particles exceeds 0.05 g / cm ² , it becomes difficult to identify the display pattern due to the presence of the particles.

In the present invention, the resin layer used for applying and fixing the non-slip particles is transparent because it is not necessary to fix the non-slip particles directly to the display layer as in the conventional anti-slip tape. It can be formed from various materials if the requirements are met. Suitable materials for forming the resin layer include, for example, urethane resin, epoxy resin, acrylic resin, polyethylene, polyolefin resin such as polypropylene, polyvinyl chloride resin, polyvinyl acetate resin, polystyrene resin, polycarbonate resin,
Examples thereof include polyamide resins. In addition, when such resins are classified according to their type, organic solvent type, water solvent type, ultraviolet (UV) curing type, electron beam (EB)
Curable type, thermoplastic type and the like can be mentioned.

In order to improve the properties, for example, the physical strength, of such a resin layer, unless the resin layer adversely affects the visibility of the display layer formed on the back surface of the base material or causes other adverse effects. And additives may optionally be contained. Suitable additives include, but are not limited to, glass fibers, anhydrous silica, titanium oxide, ultraviolet absorbers, plasticizers, and the like. Further, in addition to such additives, if necessary, they may be colored by adding a coloring agent. The degree of coloring at this time will vary depending on the color of the display layer.

When the non-slip particles are dispersed in such a resin layer, they can be dispersed in various forms depending on the desired effects. For example, the anti-slip particles may be embedded in the resin layer and a part thereof may be exposed from the surface of the resin layer. Otherwise, the anti-slip particles may be completely embedded in the resin layer. The construction may be such that it is embedded, i.e., that the non-slip particles are completely covered by the resin. Note that such different dispersion forms of the anti-slip particles can be achieved by controlling conditions such as a method of forming the resin layer.

In the practice of the present invention, particles suitable as non-slip particles are white alundum because they can significantly enhance the visibility of the display layer. Further, white alundum is also useful in that it has sufficient durability and that the particle size distribution of particles is kept constant according to JIS standards. Further, it is an important factor that the visibility of the display layer formed on the back surface of the film-like base material is greatly influenced by the particle size and the distribution density of the particles, and therefore, the anti-slip tape of the present invention. In the case of, as described above, the preferred particle size of the non-slip particles to be used is usually in the range of # 12 to # 120 according to JIS standards, and the preferred distribution density of the non-slip particles is usually 0.005-0.05g
/ Cm ² .

The application of the non-slip particles typified by white alundum can be performed according to various methods, but preferably before the resin layer is formed, at the same time as the resin layer is formed, or when the resin layer is formed. Examples of the method include an electrostatic coating method (powder coating method), a gravity coating method, and a spraying method performed after the formation. In particular, the electrostatic coating method
This is useful because it allows the non-slip particles to adhere in a standing position while providing greater transparency.

Although the resin layer can be formed arbitrarily according to a conventional film forming method, it is usually coated with a predetermined thickness by a coating method such as a spin coating method or a printing method such as a gravure printing method. It is advantageously formed by further drying. The resin layer can be usually formed by one film forming operation, but may be formed by two or more film forming operations as necessary. In addition, the thickness of the resin layer formed in this manner can be changed in a wide range depending on the size of the non-slip particles to be embedded in the layer, the embedding form thereof, and the like. It is in the range of 300 μm, preferably in the range of 10 to 100 μm.

The anti-slip tape of the present invention preferably comprises
An adhesive layer may be further provided on the adherend side of the film-like substrate. This pressure-sensitive adhesive layer shows a sufficient adhesive force to the adherend to which the anti-slip tape is to be applied, and is not selected from the commonly used pressure-sensitive adhesives as long as it does not adversely affect the display layer. It can be formed by selecting an appropriate one. Advantageously, for example, a hot melt type adhesive is directly coated on the display layer to form an adhesive layer, or an adhesive transfer tape or a double-sided tape is attached to the display layer to form an adhesive layer. Can be. This is because, in these methods, since the pressure-sensitive adhesive hardly contains a liquid component such as an organic solvent, there is no fear of chemically invading the display layer. Of course, a solvent-type pressure-sensitive adhesive can be used if necessary, but care must be taken so that the display layer is not adversely affected.

The anti-slip tape of the present invention further comprises:
In order to protect the above-mentioned pressure-sensitive adhesive layer, any release means such as a release sheet and a release liner may be provided. Such a releasing means may be any one which is generally used for the purpose of protecting the adhesive, and may be made of not only paper but also a plastic film.

[0019]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of an anti-slip tape according to the present invention. In the accompanying drawings, for ease of understanding, the thickness and ratio of each layer are shown in a form different from the actual one, and particles for preventing slip are also limited to particles having the same shape and size. It should be understood that it is shown in the form shown.

FIG. 2 is a sectional view showing a preferred embodiment of the anti-slip tape according to the present invention. Anti-slip tape 1
Numeral 0 is affixed to the road surface for the purpose of preventing slippage, and is composed of a substrate 1 made of a transparent plastic film. Here, the plastic film used as the substrate 1 is a polyester film having a thickness of 0.05 mm. After performing a corona discharge treatment (not shown) on the back surface of the film-shaped substrate 1, the display layer 2 was formed by gravure printing. The printed pattern is a diagonal pattern in which black and yellow bands are alternately arranged obliquely, which is employed at a construction site or the like to call attention. Further, on the surface of the display layer 2, an adhesive layer 5 was formed using an adhesive transfer tape in order to affix the anti-slip tape 10 to a road surface, and further protected by a release sheet 6. According to the present invention, small spherical anti-slip particles 4 were uniformly dispersed on the surface of the film-shaped substrate 1, that is, the surface having no display layer 2.
The non-slip particles 4 were white alundum having an average particle size of about # 40 as represented by JIS standards and a distribution density of about 0.03 g / cm ² . The anti-slip particles 4
Was fixed to the surface of the film-shaped substrate 1 by coating the surface of the film-shaped substrate 1 with a resin layer 3 made of transparent urethane resin to a thickness of 50 μm. As shown in the drawing, substantially all of the non-slip particles 4 were exposed from the surface of the film-shaped substrate 1.

In order to stick the anti-slip tape 10 of FIG. 2 to the road surface, the release sheet 6 was peeled off from the back surface of the film-like substrate 1. Anti-slip tape 1 stuck on the road surface with adhesive layer 5
No. 0 was firmly bonded to the road surface and did not peel or break despite frequent pedestrian traffic. Further, the pattern of the surface layer 2 observed through the film-shaped substrate 1 can be clearly observed despite the presence of the anti-slip particles 4 on the film-shaped substrate 1, It has been proved that the anti-slip tape 10 of the present invention has excellent visibility. Further, the resinous layer 3 is used to form the film-like substrate 1
The non-slip particles 4 applied to the surface did not peel off at all despite the long-term pedestrian traffic.

FIG. 3 is a sectional view showing another preferred embodiment of the anti-slip tape according to the present invention. The configuration of the illustrated anti-slip tape 10 is basically the same as that of FIG. 2, and is as follows. Film-like substrate 1 ... polyester film (thickness 0.0
5 mm) Display layer 2: White line pattern by screen printing Resin layer 3: Urethane resin (50 μm thickness) Non-slip particles 4: White alundum, small spheres (average particle size = # 40, distribution density = about 0.03 g / cm) ² ) Pressure-sensitive adhesive layer 5: pressure-sensitive adhesive of transfer tape (thickness: 50 μm) Release sheet 6: silicone-coated paper (thickness: 0.1 mm) In this anti-slip tape 10, as shown in FIG. The whole was covered with the resin layer 3. Since the non-slip particles 4 were sealed by the resin layer 3, the effect of fixing the non-slip particles 4 was further improved, and the visibility of the display layer 2 was excellent.

[0023]

As described above, according to the present invention, it is easy to manufacture, and high slippage can be achieved without lowering the visibility of the pattern drawn on the display layer or deforming the pattern itself. An anti-slip tape capable of exhibiting an anti-slip effect can be provided. The anti-slip tape of the present invention can stably maintain its excellent anti-slip effect and high display visibility even when used for a long time. The anti-slip tape of the present invention is therefore, for example, a platform of a station, a staircase, a bus, a floor surface of a vehicle such as a train, a step, a slippery floor of a large store, etc.
When used for other purposes such as slopes, stop lines on roads and sidewalks, etc., the excellent effects can be exhibited over a long period of time.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an example of a conventional patterned anti-slip material.

FIG. 2 is a sectional view showing a preferred embodiment of the anti-slip tape according to the present invention.

FIG. 3 is a sectional view showing another preferred embodiment of the anti-slip tape according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Film-like base material 2 ... Display layer 3 ... Resin layer 4 ... Non-slip particle 5 ... Adhesive layer 6 ... Release sheet 10 ... Anti-slip tape

Continued on the front page F-term (reference) 2E101 DD18 4F100 AA19C AA19H AK41A AK51C AR00A AR00B AR00D BA03 BA04 BA10B BA10C BA10D DE01C DE01H EJ55 GB90 HB00B JK16C JK16H JL12D JN01A JN01C04 CD05 AB01 CD01

Claims (5)

[Claims] 1. A transparent film-like base material, a display layer provided with a pattern or the like formed on the back surface of the film-like base material, and a film covering the surface of the film-like base material and containing alumina An anti-slip tape comprising: a transparent resin layer in which anti-slip particles made of a base material are dispersed. 2. The anti-slip tape according to claim 1, wherein the anti-slip particles are embedded in the resin layer, and a part thereof is exposed from a surface of the resin layer. 3. The anti-slip tape according to claim 1, wherein the anti-slip particles are completely embedded in the resin layer. 4. The anti-slip tape according to claim 1, wherein the anti-slip particles are made of white alundum. 5. An adhesive layer is further provided on the film-like substrate on the side of the adherend.
The anti-slip tape according to any one of the above items.