JPH08266389A - Laminated tile carpet - Google Patents

Abstract

PURPOSE: To provide a laminated tile carpet capable of protecting the environment and saving resouces, simple to manufacture, having good usability, and capable of exerting sufficient adhesiveness to a polypropylene raw material generally used as the material of a floor material recently. CONSTITUTION: A pressure-sensitive adhesive layer 3 is formed on one face of a base material 2 to form a tile carpet 10, and the pressure-sensitive adhesive layers 3 of two tile carpets 10 are stuck together to form a temporarily laminated tile carpet. The pressure-sensitive adhesive layer 3 is arranged with acrylic adhesive layers 31 and rubber adhesive layers 32 in turn.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a laminated tile carpet, the purpose of which is to prevent paper scraps such as release paper from being produced, to conserve the environment and to save resources, and to be simple and easy to manufacture. The present invention is to provide a laminated tile carpet that exhibits good adhesion to a plastic material surface such as polypropylene and can be suitably used as an interior material / floor material for offices, buildings, aircrafts, ships, etc. .

[0002]

2. Description of the Related Art Generally, a pressure sensitive adhesive does not require water or a solvent as compared with other solvent type adhesives, and adheres to a predetermined adherend surface with extremely weak pressure such as light finger pressure. It has an excellent advantage that it does not stain the adherend surface even when it is peeled off. Therefore, it is currently used in a wide range of fields such as structural or transportation. In particular, when fixing a carpet, a tile carpet, a cross member, etc. in a house, the demand from general consumers is increasing due to their ease of use and convenience. As an example of using such a pressure sensitive adhesive at home, there is fixing of carpets. As a household fixed carpet, a tile carpet (a) with an adhesive as shown in FIG. 9 is generally used. This tile carpet (a) is composed of two tile carpets (a-a-) in which a pressure sensitive adhesive layer (c) is provided on one surface of a carpet base material (b).
1) is temporarily attached via release paper (d). When used, each tile carpet (a
-1) was separated from the release paper (d) and fixed to the adherend.

However, in the tile carpet (a) with an adhesive as shown in FIG. 9, the release paper (d) remains as paper scraps every time it is used, and in recent years, environmental protection and resource saving have been achieved on a global scale. There was a problem that it was not possible to deal with the current situation in which aging is becoming a problem. Therefore, as a pressure-sensitive adhesive sheet that can contribute to the environmental conservation problem, "double pressure-sensitive adhesive sheet" is disclosed in Japanese Patent Laid-Open No. 5-64858.
Is disclosed. In this disclosed technique, as shown in the structure in FIG. 10, two pressure-sensitive adhesive sheets having a pressure-sensitive adhesive coated portion (n) and a release agent coated portion (r) on the back surface of the sheet (s) are adhered to each other. It was a double pressure-sensitive adhesive sheet that was adhered so that the agent-coated portions (n) did not overlap each other. This "double adhesive sheet" was an excellent technology that was able to meet the demands of the times such as environmental protection and resource saving without the generation of paper scraps due to release paper during use.

[0004]

However, in the above-mentioned "double pressure-sensitive adhesive sheet", the work of positioning the pressure-sensitive adhesive coated portions (n) of the pressure-sensitive adhesive sheet so as not to overlap each other is complicated, and the pressure-sensitive adhesive layer is formed into a sheet. There is a problem that it takes a lot of time and effort to manufacture the pressure-sensitive adhesive sheet, for example, in the case of applying it to one side of the sheet, precise application accuracy is required. Further, in the disclosed technique, the pressure-sensitive adhesive-coated portion (n) is partially provided on one surface of the sheet (s), so that the pressure-sensitive adhesive-coated portion (n) required for fixing to the adherend is not covered. There is a problem that the area becomes considerably smaller than the adherend area, and the adhesiveness to the adherend is poor. In addition, since the pressure-sensitive adhesive-coated portion (n) is partially provided in a checkered pattern, the adhesive force becomes extremely weak at the end of the pressure-sensitive adhesive sheet (s), and after being fixed to the adherend, the pressure-sensitive adhesive sheet ( s) may be lifted from the edge, or depending on the sheet, there may be a step between the part where the adhesive is provided and the part where the adhesive is not provided after attachment, and attachment is fixed. There was also a problem of impairing the aesthetic appearance of the seat surface later.

Further, in recent years, polypropylene materials have come to be used for the adherend (floor surface, etc.) on which the above-mentioned double adhesive sheet is applied from the viewpoint of environment and the like. Generally, an acrylic pressure-sensitive adhesive is often used for the pressure-sensitive adhesive sheet, but there is a problem that the acrylic pressure-sensitive adhesive does not have sufficient adhesiveness to the polypropylene material. On the other hand, when a rubber-based pressure-sensitive adhesive having high adhesiveness to the surface of a plastic material such as polypropylene is used, there is a problem that the two pressure-sensitive adhesive sheets cannot be easily separated when the pressure-sensitive adhesives are bonded together.

In view of this, the present invention does not produce paper scraps such as release paper during use, can conserve the environment and conserve resources, and does not require precise positioning or coating accuracy, and is simple to manufacture. In addition, even if two tile carpets are attached to each other with their pressure-sensitive adhesive surfaces and temporarily adhered to each other, blocking does not occur in the mutual pressure-sensitive adhesive layers, and two tile carpets can be easily used at the time of use. The tile carpet of can be separated, and in addition, it can exhibit sufficient adhesiveness to polypropylene materials that have been widely used as flooring materials in recent years, and it is excellent in environmental protection, manufacturability, usability, etc. The purpose is to provide a laminated tile carpet.

[0007]

The present invention has been made to solve the above problems, and the laminated tile carpet according to claim 1 is provided with a pressure sensitive adhesive layer on one surface of a base material. Two tile carpets, wherein the tile carpets are formed by laminating and temporarily adhering pressure-sensitive adhesive layers to each other, and the pressure-sensitive adhesive layers are an acrylic adhesive layer and a rubber-based adhesive layer. And are arranged alternately. According to another aspect of the laminated tile carpet of the present invention, the adhesive force of the pressure-sensitive adhesive layer is an adhesive force capable of separating the adhesive layers of the two tile carpets in a bonded state.

[0008]

In the laminated tile carpet according to claim 1, since the pressure-sensitive adhesive layers of two tile carpets are laminated and temporarily laminated, no paper scraps such as release paper are generated during use, and the environment is improved. Conservation and resource saving can be achieved. Moreover, when stacking two tile carpets,
Particularly, precise positioning and the like are not required, and it can be easily manufactured. Further, since the acrylic pressure-sensitive adhesive layer and the rubber pressure-sensitive adhesive layer are alternately arranged on the surface of the base material, sufficient adhesiveness to a polypropylene material which has been widely used in floor materials in recent years is provided. In addition to being able to be expressed, even if the pressure-sensitive adhesive layers of two tile carpets are stuck together, blocking does not occur in these adhesive layers, and they can be easily separated. In the laminated tile carpet according to claim 2, since the adhesive force of the pressure-sensitive adhesive layer is an adhesive force capable of separating the pressure-sensitive adhesive layers of the two tile carpets in a state in which they are adhered to each other, Even if the adhesive layers are attached to each other, blocking or the like does not occur in the mutual adhesive layers, and the two tile carpets can be easily separated at the time of use. Therefore, it is excellent in environmental protection, manufacturability and usability.

[0009]

The structure of a laminated tile carpet according to the present invention will be described in detail below with reference to the drawings. FIG. 1 is a vertical sectional view showing an embodiment of the laminated tile carpet of the present invention. As shown, the laminated tile carpet 1 of the present invention is composed of two tile carpets 10 each having a pressure sensitive adhesive layer 3 provided on one surface of a substrate 2. The two tile carpets 10 and 10 are laminated and temporarily attached to each other with the pressure-sensitive adhesive layers 3 and 3 bonded to each other.

As the base material 2, any of known natural fibers and synthetic fibers used in ordinary tile carpets, or blended fibers thereof can be suitably used without any particular limitation. Further, these natural fibers and synthetic fibers may be coated with a synthetic resin such as vinyl chloride resin or polypropylene resin as a backing material, and there is no particular limitation. Further, the shape and size of the base material 2 are not particularly limited. The thickness of the base material 2 is also not particularly limited, but in light of the actual use conditions, specifically, 1 to
The thickness is preferably in the range of about 20 mm.

A pressure-sensitive adhesive layer 3 is provided on the entire surface of one side of the base material 2, more specifically, the back surface of the base material 2. In the present invention, the pressure-sensitive adhesive layer 3 is formed by alternately disposing the acrylic pressure-sensitive adhesive layer 31 and the rubber pressure-sensitive adhesive layer 32.

As the acrylic pressure-sensitive adhesive, specifically, an acrylic acid monomer having 2 to 14 carbon atoms such as methyl acrylate, ethyl acrylate and butyl acrylate is used.
An adhesive containing 0% or more can be more preferably used. Further, if necessary, a tackifier, a softening agent, an antioxidant, a filler, a cross-linking agent, a pigment and the like may be contained. On the other hand, the rubber-based pressure-sensitive adhesive contains natural rubber and synthetic rubber as main components, and contains tackifiers, softeners, antioxidants, fillers, cross-linking agents, pigments and the like as necessary. Any rubber pressure sensitive adhesive can be used.

As described above, the acrylic pressure-sensitive adhesive layer 31
By alternately disposing the rubber-based pressure-sensitive adhesive layer 32 and the rubber-based pressure-sensitive adhesive layer 32, sufficient adhesiveness to a polypropylene material that has been widely used for flooring materials in recent years can be exhibited, and two tile carpets 10 can be obtained. Even if the 10 adhesive layers 3 are adhered to each other, blocking does not occur in these adhesive layers, and they can be easily separated. Further, as the pressure-sensitive adhesive layer 3, its adhesive force is
The adhesive strength is such that the adhesive layers 3, 3 of the two tile carpets 10, 10 can be separated in a state of being stuck together. The reason for this is the two tile carpets 10.1
If the tile carpets 10 and 10 cannot be separated after the pressure-sensitive adhesive layers 3 and 3 of No. 0 are bonded to each other, the tile carpet suitable for environmental conservation, which does not require release paper, which is the object of the present invention. Because you cannot.

In the present invention, as shown in the embodiment of FIG. 2, the acrylic pressure-sensitive adhesive layer 31 may be thicker than the rubber-type pressure-sensitive adhesive layer 32. Thus, by providing the coating thickness of the acrylic pressure-sensitive adhesive layer 31 to be thicker than that of the rubber pressure-sensitive adhesive layer 32, and arranging these pressure-sensitive adhesive layers 31 and 32 alternately, Two tile carpet 10 ・ 10
The rubber-based pressure-sensitive adhesive layers 32, 32 are not temporarily adhered to each other when they are bonded together, and the separability during use becomes extremely good.

Further, as the disposition shape of the acrylic pressure-sensitive adhesive layer 31 and the rubber pressure-sensitive adhesive layer 32, for example, as shown in FIG. 3, the pressure-sensitive adhesive layers 31 and 32 are respectively arranged.
They may be arranged in a grid so that they are not adjacent to each other, or, as shown in FIG. 4, each pressure-sensitive adhesive layer 31.
The 32 may be alternately arranged in a streak pattern. Further, as shown in FIGS. 3 and 4, the acrylic pressure-sensitive adhesive layer 31 and the rubber pressure-sensitive adhesive layer 32 may be applied to the same thickness,
More preferably, from the standpoint of separability and the like, as shown in FIGS. 5 and 6, it is preferable that the acrylic pressure-sensitive adhesive layer 31 is thicker than the rubber-based pressure-sensitive adhesive layer 32 and is temporarily attached. Moreover, in this invention, two tile carpets 10 are used.
Each pressure-sensitive adhesive layer may be provided such that the acrylic pressure-sensitive adhesive layers 31 face each other when the ten tiles are bonded together. However, as shown in FIG. And a pressure sensitive adhesive layer 31 of one of the tile carpets and a rubber pressure sensitive adhesive layer 32 of the other tile carpet face each other when the two are bonded together. Then, the compatibility of the pressure-sensitive adhesive layers with each other is deteriorated and the separability is improved, which is preferable, but is not particularly limited. In the case of adopting such a configuration that one acrylic pressure-sensitive adhesive layer 31 and the other rubber-based pressure-sensitive adhesive layer 32 face each other at the time of bonding as described above, the acrylic pressure-sensitive adhesive layer 31 and the rubber The coating thickness with the pressure-sensitive adhesive layer 32 may be the same.

As described above, according to the present invention, any arrangement shape can be used as long as the acrylic pressure-sensitive adhesive layer 31 and the rubber pressure-sensitive adhesive layer 32 are provided adjacent to each other on one side of the substrate 2. Well, it is not particularly limited. That is, as shown in the above-mentioned embodiment, in addition to providing the acrylic pressure-sensitive adhesive layer 31 and the rubber pressure-sensitive adhesive layer 32 in a lattice or streaks at regular intervals, an appropriately irregular pitch, Specifically, the pressure sensitive adhesive layers 31 and 32 may be provided in such a manner that the areas of the acrylic pressure-sensitive adhesive layer 31 and the rubber pressure-sensitive adhesive layer 32 adjacent to each other are changed. Good. Further, the pressure sensitive adhesive layer 3 of each of the tile carpets 10 and 10 laminated opposite to each other
The adhesive layers of the same kind do not necessarily have to be temporarily adhered to each other, and as described above, different pressure sensitive adhesive layers 31.
32 may be temporarily attached, or as shown in FIG. 8, one acrylic pressure-sensitive adhesive layer 31 and the other rubber-type pressure-sensitive adhesive layer 32 may be temporarily attached in a misaligned state. It may be configured to have.

The coating thickness of the pressure sensitive adhesive layer 3 is not particularly limited, but is preferably in the range of about 10 to 200 μm. The method for applying the pressure-sensitive adhesive layer 3 to the base material 2 is not particularly limited, and any known application method such as roll coater, silk screen printing, or flexo printing can be suitably used. In addition, in order to improve the anchoring force between the base material 2 and the pressure-sensitive adhesive layer 3, the base material 2 may be subjected to a primer treatment in advance. In this case, urethane-based, epoxy-based, rubber-based, and acrylic-based resins can be preferably used as the primer composition, but the primer composition is not particularly limited.

[0018]

EXAMPLES The effects of the laminated tile carpet according to the present invention will be further clarified below with reference to examples. However, the present invention is not limited to the following embodiments. (Example 1) The surface is formed of nylon tufted,
A rubber-based pressure-sensitive adhesive was applied to the back surface of a tile carpet substrate having a back surface made of a polypropylene material in stripes at intervals of 4 cm and dried to form a pressure-sensitive adhesive layer of 50 μm. Next, an acrylic pressure-sensitive adhesive was applied to a portion not coated with the rubber-based pressure-sensitive adhesive and dried to provide a pressure-sensitive adhesive layer having a coating thickness of 70 μm to obtain a tile carpet. Similarly, another tile carpet was prepared, and the pressure-sensitive adhesives of these two tile carpets were bonded and pressure-bonded to each other to obtain the laminated tile carpet of Example 1. (Example 2) The surface is formed of nylon tufted,
On the back side of the tile carpet base material, the back side of which is made of vinyl chloride material, the acrylic pressure-sensitive adhesive is applied in a grid pattern in a square shape with one side of 5 cm, and dried to obtain a coating thickness of 20.
A μm pressure sensitive adhesive layer was formed. Next, a rubber-type pressure-sensitive adhesive is applied in a similar rectangular shape (5 cm on a side) to a portion where the acrylic pressure-sensitive adhesive is not applied, and dried so that the total thickness becomes 30 μm. A pressure sensitive adhesive layer was provided to produce a tile carpet. Similarly, another tile carpet was prepared, and the pressure-sensitive adhesives of these two tile carpets were bonded and pressure-bonded to each other to obtain a laminated tile carpet of Example 2. (Example 3) The surface is formed of nylon tufted,
An acrylic pressure-sensitive adhesive was applied to the back surface of a tile carpet base material made of polypropylene material in the form of stripes at 4 cm intervals and dried to form a pressure-sensitive adhesive layer having a coating thickness of 50 μm. Next, a rubber pressure-sensitive adhesive is applied to a portion where the acrylic pressure-sensitive adhesive is not applied to a thickness of 7
A tile carpet was prepared by applying the coating solution to 0 μm and then drying it. The tile carpet obtained in Example 1 was attached to this tile carpet, and the pressure sensitive adhesive layers were pressure-bonded to each other to obtain a laminated tile carpet of Example 3. (Example 4) The surface is formed of nylon tufted,
An acrylic pressure-sensitive adhesive was applied to the back surface of a tile carpet substrate having a back surface made of a polypropylene material in stripes at 4 cm intervals and dried to form a pressure-sensitive adhesive layer having a coating thickness of 50 μm. Next, a rubber pressure-sensitive adhesive is applied to a portion not coated with the acrylic pressure-sensitive adhesive to a thickness of 50 μm.
A tile carpet was prepared by applying the coating material so as to have a thickness of m and drying it. The same base material is coated with the acrylic adhesive layer and the rubber adhesive layer at positions opposite to those described above, and the pressure-sensitive adhesive layers of these two tile carpets are respectively coated with acrylic. The systematic adhesive layer and the rubber-based adhesive layer were attached to each other and pressed against each other to obtain a laminated tile carpet of Example 4.

(Comparative Example 1) An acrylic pressure-sensitive adhesive was applied to the back surface of a tile carpet base material whose front surface was made of nylon tufted and whose back surface was made of polypropylene material, and dried to obtain a pressure-sensitive coating having a coating thickness of 50 μm. An adhesive layer was formed. Similarly, another tile carpet was prepared, and the pressure-sensitive adhesives of these two tile carpets were bonded and pressure-bonded to each other to obtain a laminated tile carpet of Comparative Example 1. (Comparative Example 2) The surface is formed of nylon tufted,
A rubber-based pressure-sensitive adhesive was applied to the back surface of a tile carpet substrate having a back surface made of a polypropylene material and dried to form a pressure-sensitive adhesive layer having a coating thickness of 50 μm. Similarly, another tile carpet was prepared, and the pressure-sensitive adhesives of these two tile carpets were bonded and pressure-bonded to each other to obtain a laminated tile carpet of Comparative Example 2.

[0020]

[Test Example] With respect to the laminated tile carpets obtained in Examples 1 to 3 and Comparative Examples 1 and 2, respectively, separability,
A sensory test was conducted by a panelist on the item of adhesiveness to the polypropylene plate. In the evaluation, good separability was evaluated as ◯, a feeling that it felt a little heavy at the time of separation was evaluated as Δ, and separation that was difficult was evaluated as x. The adhesiveness to the polypropylene plate was evaluated as ◯, and the adhesiveness to the polypropylene plate was evaluated as x. Table 1 shows the results.

[Table 1]

As is clear from the results shown in Table 1, in the laminated tile carpet (comparative example 1) in which acrylic pressure-sensitive adhesive layers were adhered to each other, although the separability between the tile carpets was good, the polypropylene tile It turns out that it hardly adheres to it. Further, in the laminated tile carpet (Comparative Example 2) in which the rubber-based pressure-sensitive adhesive layers are bonded to each other, it is difficult to separate the tile carpets from each other. In addition, a laminate in which an acrylic pressure-sensitive adhesive layer and a rubber pressure-sensitive adhesive layer are alternately provided in stripes, and the coating thickness of the acrylic pressure-sensitive adhesive layer is thicker than that of the rubber-based adhesive layer. It can be seen that the tile carpet (Example 1) has good separability between the tile carpets and also has good adhesion to the polypropylene plate. On the other hand, a laminate in which acrylic pressure-sensitive adhesive layers and rubber pressure-sensitive adhesive layers are alternately provided in a grid pattern, and the coating thickness of the rubber-based pressure-sensitive adhesive layer is thicker than that of the acrylic adhesive layer. It can be seen that the tile carpet (Example 2) shows good adhesion to the polypropylene plate, but feels a little heavy when the tile carpets are separated from each other. Even if the coating thickness of the acrylic pressure-sensitive adhesive layer on one of the tile carpets to be further laminated is thinner than the rubber adhesive layer, the coating thickness of the acrylic adhesive layer on the other tile carpet is rubber-based. It can be seen that when the layer is thicker than the agent layer (Example 3), the separability is good and the polypropylene plate also has good adhesion. Moreover, when the pressure-sensitive adhesive layers of both tile carpets to be laminated are alternately provided such that the acrylic adhesive layer and the rubber adhesive layer face each other when they are laminated (Example 4), the lamination is performed. It can be seen that the mutual compatibility of the pressure-sensitive adhesive layers with each other is poor, the separation property is good even when the coating thickness is constant, and the adhesive property to the polypropylene plate is good.

[0022]

As described in detail above, the invention of claim 1 is a two-piece tile carpet in which a pressure-sensitive adhesive layer is provided on one surface of a substrate, and these tile carpets are pressure-sensitively bonded to each other. The pressure-sensitive adhesive layer is formed by laminating and temporarily adhering the agent layers to each other, and the pressure-sensitive adhesive layer is formed by alternately arranging an acrylic adhesive layer and a rubber adhesive layer. Since it is a tile carpet, paper dust such as release paper does not occur at the time of use as is clear from the above examples, and it is possible to conserve the environment and save resources, and when stacking two tile carpets, Particularly, precise positioning is not required, and it can be easily manufactured. Moreover, since the acrylic adhesive layer and the rubber adhesive layer are alternately arranged on the substrate surface,
A laminated tile carpet capable of exhibiting sufficient adhesiveness to a polypropylene material that has been widely used for flooring materials in recent years, and can be suitably used as an interior material / floor material for offices, buildings, aircrafts, ships, etc. It has an excellent effect. The invention according to claim 2 is characterized in that the adhesive force in the pressure-sensitive adhesive layer is an adhesive force capable of separating the adhesive layers of two tile carpets in a state where the adhesive layers are adhered to each other. Since it is a tile carpet, even if the adhesive layers are pasted together, there will be no blocking in the mutual adhesive layers, and the two tile carpets can be easily separated during use, thus protecting the environment. The laminated tile carpet is excellent in manufacturability and usability.

[Brief description of drawings]

FIG. 1 is a longitudinal sectional view showing a first embodiment of a laminated tile carpet according to the present invention.

FIG. 2 is a vertical sectional view showing a second embodiment of the laminated tile carpet according to the present invention.

FIG. 3 is an external view illustrating an embodiment of the laminated tile carpet according to the present invention.

FIG. 4 is an external view showing another embodiment of the laminated tile carpet according to the present invention.

FIG. 5 is an external view showing another embodiment of the laminated tile carpet according to the present invention.

FIG. 6 is an external view showing another embodiment of the laminated tile carpet according to the present invention.

FIG. 7 is a cross-sectional view showing another embodiment of the laminated tile carpet according to the present invention.

FIG. 8 is a cross-sectional view showing another embodiment of the laminated tile carpet according to the present invention.

FIG. 9 is a cross-sectional view showing an example of a conventional laminated tile carpet.

FIG. 10 is an external view showing another example of a conventional laminated tile carpet.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Laminated tile carpet 2 Base material 3 Pressure-sensitive adhesive layer 31 Acrylic pressure-sensitive adhesive layer 32 Rubber pressure-sensitive adhesive layer

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Internal reference number FI Technical display location B32B 27/12 B32B 27/12 27/30 27/30 A (72) Inventor Noboru Fujiwara Ibaraki, Osaka Prefecture 1-2 Hochizumi Shimoichi, Nitto Denko Corporation

Claims (2)

[Claims] 1. A two-piece tile carpet having a pressure-sensitive adhesive layer provided on one surface of a substrate, wherein the tile carpets are laminated and temporarily adhered to each other by bonding the pressure-sensitive adhesive layers to each other. In addition, the pressure-sensitive adhesive layer is formed by alternately arranging an acrylic adhesive layer and a rubber adhesive layer. 2. The adhesive force in the pressure-sensitive adhesive layer is
The laminated tile carpet according to claim 1, wherein the adhesive strength of the two tile carpets is such that they can be separated in a state where the adhesive layers are adhered to each other.