JPH0579174A - Flooring and manufacturing method thereof - Google Patents

Abstract

PURPOSE:To prevent finished ground flooring from stripping together with face because an adhesive remains to the finished ground flooring side in the case the face is strip and to provide no obstacle in the case it is reused without soiling its vicinity by making the upper surface of the finished ground flooring coarser than the lower surface of the face. CONSTITUTION:Finished ground flooring 1 is constituted of a plurality of planar square-shaped floor units 6 having legs 5 in four corners. Each of the floor units 6 is constituted of synthetic resin, steels, wood, calcium silicate boards, etc., Adherence of face 3 such as a tile carpet or a P tile, etc. to the upper surface of the finished ground flooring 1 coarser than the lower surface of the face 3, 6 is made through an adhesive 2 to form flooring 4. By making the upper surface of the finished ground flooring 1 coarser than the lower surface of the face 3, the adhesive 2 enters an uneven side on a coarse surface of the surface side of the finished ground flooring 1, holding force increases to increase adhesion, and the lower surface side of the face 3 has fewer unevenesses in comparison with the upper surface of the finished ground flooring 1 (or shallow unevenesses), holding force is weak, adhesion is weak in comparison with the finished ground flooring 1 side, and as a result, when the face 3 is stripped, the adhesive 2 remains to the finished ground flooring 1 side, so that it is not stripped because the adhesive 2 is applied to the stripped face 3.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a flooring material capable of peeling a surface material from a flooring base material and a method for producing the flooring material.

[0002]

2. Description of the Related Art Conventionally, a floor material called a so-called free access floor has been known. This floor material is used as an office floor, etc., and the surface material can be peeled off for wiring, piping work, and the like. Then, in the conventional example, as shown in FIG. 10, a surface material 3 such as a tile carpet is releasably adhered to the upper surface of the floor base material 1 with a double-sided adhesive tape 2a, or, as shown in FIG. A surface material 3 such as a tile carpet is releasably adhered to the upper surface of the floor base material 1 by an emulsion type adhesive 2b.

[0003]

However, in the above-mentioned conventional example, in the former conventional example, when the surface material 3 is peeled off, the double-sided adhesive tape 2a is applied to either the surface material 3 or the floor base material 1. It is uncertain whether or not it adheres to the surface material 3 side,
There is a problem that when the peeled surface material 3 is placed at an arbitrary position and the work is performed, the double-sided adhesive tape 2a adheres to a nearby object to be soiled and cannot be reused.
There is a problem that when the surface material 3 is peeled off, the double-sided pressure-sensitive adhesive tape 2a is torn or wrinkled and cannot be used again. In addition, when a new surface material 3 is attached, it is necessary to newly apply a pressure-sensitive adhesive to bond it. Furthermore, in the latter conventional example, when the surface material 3 is peeled off, it is uncertain whether the adhesive 2b will adhere to the surface material 3 or the floor base material 1, and when the surface material 3 is attached, There is a problem that when the peeled surface material 3 is placed at an arbitrary position and the work is performed, the adhesive 2b adheres to a nearby material to be soiled and cannot be reused. In addition, when a new surface material 3 is attached, it is necessary to newly apply a pressure-sensitive adhesive to bond it.

The present invention has been made in view of the above-mentioned problems of the prior art. The purpose of the present invention is that when the surface material is peeled off, the pressure-sensitive adhesive remains on the floor base material side and remains on the surface material. It is an object of the present invention to provide a floor material and a method of manufacturing the floor material that are not peeled off and do not stain the surrounding area and have no trouble in reuse.

[0005]

A floor material 4 of the present invention comprises a floor material 1 and a surface material 3 which is releasably bonded to the floor material 1 via an adhesive 2. In addition, the pressure-sensitive adhesive 2 remains on the floor base material 1 side when the surface material 3 is peeled off by making the upper surface of the floor base material 1 rougher than the lower surface of the surface material 3. Is.

A floor material 4 composed of a floor base material 1 and a surface material 3 which is releasably joined to the floor base material 1 via an adhesive material 2, wherein the adhesive material 2 is a hot melt type. The adhesive 2 is adhered to the upper surface side of the floor base material 1 more strongly than the lower surface of the surface material 3 and the adhesive 2 remains on the floor base material 1 side when the surface material 3 is peeled off. Good. Then, in this case, a method for producing a flooring material 4 composed of a flooring material 1 and a surface material 3 which is releasably bonded onto the flooring material 1 via an adhesive 2, The floor material 4 can be manufactured by applying the hot-melt type pressure-sensitive adhesive 2 heated to 150 to 200 ° C. on the upper surface of the surface 1 and then adhering the surface material 3 to the pressure-sensitive adhesive 2.

[0007]

The surface material 3 is peeled off by making the upper surface of the floor base material 1 rougher than the lower surface of the surface material 3 so that the adhesive 2 remains on the floor base material 1 side when the surface material 3 is peeled off. Adhesive 2 when doing
Will remain on the floor base material 1 side without peeling off the surface material 3. Further, the pressure-sensitive adhesive 2 is a hot-melt type pressure-sensitive adhesive 2, and when the surface material 3 is peeled off by strongly adhering to the upper surface side of the floor base material 1 than the lower surface of the surface material 3, the pressure-sensitive adhesive 2 is the floor base material. Even when the surface material 3 is left on the first side, when the surface material 3 is peeled off, the pressure-sensitive adhesive 2 remains on the floor base material 1 side without sticking to the surface material 3 and peeling off.

Then, 150 to 20 are provided on the upper surface of the floor base material 1.
Apply the hot melt type adhesive 2 heated to 0 ° C,
After that, the surface material 3 is adhered to the pressure-sensitive adhesive 2 to produce the floor material 4, so that the hot-melt type pressure-sensitive adhesive 2 heated to 150 to 200 ° C. has fluidity, and Even a slight unevenness on the surface will enter and firmly bond, and when the floor base material 1 is a synthetic resin, the surface of the floor base material 1 is slightly melted by the hot-melt adhesive 2 at high temperature. As a result, the adhesive strength between the floor base material 1 and the hot melt type pressure-sensitive adhesive 2 is further improved. By adhering the surface material 3 to the hot-melt type adhesive 2 firmly adhered to the floor base material 1 in this way, the adhesive 2 may adhere to the surface material 3 and peel off when the surface material 3 is peeled off. Therefore, the floor material 4 that reliably remains on the floor base material 1 side can be easily manufactured.

[0009]

EXAMPLES The present invention will be described in detail based on the following examples. First, the first embodiment will be described. The floor base material 1 is formed by assembling a plurality of floor units 6 each having legs 5 at four corners and having a quadrangular shape in a plan view. When the floor units 6 are separated from each other, or a part thereof is a thin wall portion. There is a case where it is connected by and can be bent freely at the thin part. The floor unit 6 used here is made of synthetic resin, steel, wood, calcium silicate plate, or the like. A floor base material 1 constituted by assembling a plurality of floor units 6 in this way
A floor material 4 is constructed by releasably adhering a surface material 3 such as a tile carpet or P tile to the upper surface of the same via an adhesive 2. Here, in the present invention, when the surface material 3 is peeled off, the pressure sensitive adhesive 2 remains on the floor base material 1 side and is not peeled off on the peeled surface material 3 side. Then, as shown in FIG.
When the surface material 3 is peeled off, the pressure-sensitive adhesive 2 remains on the floor base material 1 side as compared with the lower surface. The adhesive 2 used may be either an emulsion type adhesive or a hot melt type adhesive.
In this embodiment, by making the upper surface of the floor base material 1 rougher than the lower surface of the surface material 3, the pressure-sensitive adhesive 2 enters due to the rough side of the surface side of the floor base material 1 to increase the holding force. Although the adhesive strength is increased, the lower surface side of the surface material 3 has less unevenness (or shallower unevenness) than the surface of the floor base material 1 and the holding force is weak, and the adhesive strength is weaker than the floor base material 1 side, As a result, the surface material 3
When peeled off, the pressure sensitive adhesive 2 remains on the floor base material 1 side and is not peeled off on the peeled surface material 3 side.

Next, another embodiment of the present invention will be described. Also in this embodiment, the floor base material 1 is constituted by assembling a plurality of floor units 6 each having leg portions 5 at four corners and having a quadrangular shape in plan view. When the floor units 6 are separated from each other,
Alternatively, there is a case where a part of the thin wall portion is connected and the thin wall portion can be bent. The floor unit 6 used here is made of synthetic resin, steel, wood, calcium silicate plate, or the like. Then, a surface material 3 such as a tile carpet or a P tile is releasably adhered to the upper surface of the floor base material 1 constituted by assembling a plurality of floor units 6 in this way via a hot-melt type adhesive 2. Floor material 4
Is configured. In this embodiment, when the hot melt type pressure sensitive adhesive 2 is applied to the floor substrate 1, the hot melt type pressure sensitive adhesive 2 is applied to the floor substrate at a temperature of about 150 to 200 ° C, preferably about 180 ° C. Apply to the upper surface of the material 1. In this case, when the surface material 3 is applied later, the surface material 3 is applied thinly so that there is no space between the floor base material 1 and the surface material 3. Since the temperature of the hot-melt type pressure-sensitive adhesive 2 at the time of coating on the floor substrate 1 is high as described above, the viscosity becomes low and the fluidity is good (for example, the viscosity is about 3000 to 4000 cp).
As a result, as a result, the hot-melt type pressure-sensitive adhesive 2 also enters into the slight irregularities on the surface of the floor base material 1, and the holding force of the hot-melt type pressure-sensitive adhesive 2 on the floor base material 1 increases and adheres. Power will increase. Also, here, the floor substrate 1
In the case of a synthetic resin, the temperature at the time of applying the hot-melt type pressure-sensitive adhesive 2 is high, and thus the hot-melt type hot-melt type pressure-sensitive adhesive 2 of slightly high temperature is melted on the upper surface of the synthetic resin floor substrate 1 Hot melt type adhesive 2 to substrate 1
The holding force of the will increase and the adhesive force will increase. In this way, the hot-melt type pressure-sensitive adhesive 2 is firmly adhered to the upper surface of the floor base material 1, and then the surface material 3 is adhered to the pressure-sensitive adhesive 2 to manufacture the floor material 4. In the manufactured floor material 4, when the surface material 3 is peeled off, the adhesive 2 remains on the floor base material 1 side and is not peeled off on the peeled surface material 3 side. By the way, it goes without saying that various coating forms can be selected when the pressure-sensitive adhesive 2 is applied to the floor substrate 1, but one effective method is as shown in FIGS. 4 (a) and 4 (b). Or, it may be applied in a linear shape such as a curved shape.

Next, a method of applying the adhesive 2 will be described. In FIG. 3 (a), a hot-melt type adhesive 2 is linearly applied from a nozzle 7 to the surface of a floor base material 1 formed by assembling a plurality of floor units 6 as shown in FIG. 4 (a). Alternatively, it is applied in a spiral shape as shown in FIG. In FIG. 3, 8 is a heater, and 9 is a melting tank for the hot-melt type adhesive 2. In this way, the hot-melt type pressure-sensitive adhesive 2 is linearly applied from the nozzle 7 to the upper surface of the floor base material 1, and then the surface material 3 is placed as shown in FIG. As described above, the surface material 3 is adhered to the upper surface of the floor base material 1 by the hot-melt type adhesive 2 by pressing with the pressing device 10. Here, in the case of applying the hot-melt type adhesive 2 by ejecting it from the nozzle 7 as in this embodiment, it is possible to easily start and stop the line by turning on and off the switch of the heater 8. No need for cleaning after the line is stopped,
There is little variation in coating. And since it is a hot melt type, a dryer is not required in the line, which saves energy and space. In addition, since release paper such as double-sided tape is not needed, it is not wasted and the cost can be reduced.

FIGS. 4, 5, 6, and 7 show another method for applying a water-soluble type adhesive or a hot-melt type adhesive. In this embodiment, a plurality of nozzles 7 are arranged and the set position A of the end portion of the upper surface of the floor base material 1 is detected to move the plurality of nozzles 7 or the floor base material 1 is moved. Apply adhesive 2 linearly,
The valve is closed at the set position B at the other end of the upper surface of the floor base material 1. By doing so, the adhesive 2 can be simultaneously applied to the upper surface of the floor base material 1 in a plurality of rows. it can. By adopting such a method, it is possible to prevent the pressure-sensitive adhesive 2 from dripping on the side surface of the floor base material 1. However, the hot-melt type adhesive 2 that melts when heated is preferable to the water-soluble type adhesive 2 that requires cleaning inside the nozzle 7. In the above-described embodiment, the example in which the adhesive 2 is linearly applied in a plurality of rows in one direction using the plurality of nozzles 7 has been described. However, as shown in FIG. The adhesive 2 may be linearly applied to the rows. in this case,
First, the adhesive 2 is applied vertically in a plurality of rows by a plurality of nozzles 7 starting from the position C on the upper surface of the floor base material 1 shown in FIG. 6A to the position D, and then FIG. Rotate the plurality of nozzles 7 or the floor substrate 1 by 90 ° in a plan view as shown in E.
Starting from the position, the adhesive 2 is applied laterally in a plurality of rows by a plurality of nozzles 7 to the position D, and the adhesive 2 is applied so as to cross a plurality of rows vertically and horizontally. In this case, if the nozzles 7 located at the ends of the plurality of horizontally arranged nozzles 7 are arranged so as to approach the left and right ends, the first start position C is the A position at the end of the floor base material 1. Need not be so close to. Because the nozzle 7 or the floor base 1
This is because the nozzle 7 at the end is located close to the position A for application when being inverted. Similarly, for the same reason, the initial start position E after 90 ° reversal does not have to be so close to the point B. As a result, the pressure-sensitive adhesive 2 can be surely applied to the edge of the upper surface of the floor base material 1 which is most necessary for adhesion. Further, in the arrangement of the plurality of nozzles 7, when the intervals between the nozzles 7 are arranged so that the central portion is wide and the end side is narrow as shown in FIG. 7, the adhesive 2 can be applied more densely to the ends. Further, when the adhesive 2 is applied to the cloth, the adhesive strength loses directionality.

FIGS. 8 and 9 show an example in which the adhesive 2 is linearly applied to the floor base material 1 and an example in which it is applied in a cloth shape. By the way, the flooring material 4 of the present invention is used as an office floor or the like. Then, wiring and piping are provided between the leg portions 5 of the floor material 4. In the case of this underfloor wiring, piping work, maintenance, inspection, replacement of the surface material 3, etc., the surface material 3 is peeled off. In the present invention, the adhesive 2 is used when the surface material 3 is peeled off. Since it is configured to remain on the floor base material 1 side, the pressure sensitive adhesive 2 remains on the floor base material 1 side without peeling off the surface material 3. Therefore, even if the peeled surface material 3 is placed, the surroundings are not polluted, and since the pressure-sensitive adhesive 2 remains on the floor base material 1 side even when a new surface material 3 is stuck, it can be used for bonding. become.

[0014]

According to the present invention, as described above, the upper surface of the floor base material is made rougher than the lower surface of the surface material so that the adhesive remains on the floor base material side when the surface material is peeled off. Because there is
When peeling the surface material, the adhesive will remain on the floor base without sticking to the surface material, and as a result, even if the peeled surface material is placed, the surroundings will not be polluted and a new surface Since the pressure-sensitive adhesive remains on the floor base material side even when the material is pasted, there is an advantage that it can be used for adhesion.

The pressure-sensitive adhesive is a hot-melt type pressure-sensitive adhesive, and the pressure-sensitive adhesive remains on the floor base material side when the surface material is peeled off by adhering more strongly to the upper surface side of the floor base material than to the lower surface of the surface material. Even in the case of such a configuration, similarly, when peeling the surface material, the adhesive will remain on the floor base material side without being peeled off by attaching to the surface material, and as a result, the peeled surface material is placed. However, there is an advantage that the surroundings are not polluted, and the adhesive remains on the floor base material side when a new surface material is applied, so that the adhesive can be used for adhesion.

Further, the upper surface of the floor base material is 150 to 200 ° C.
In the case where a floor material is manufactured by applying a hot-melt type pressure-sensitive adhesive heated to above, and then adhering a surface material to the pressure-sensitive adhesive, the hot-melt type pressure-sensitive adhesive heated to 150 to 200 ° C. has fluidity. Since it has a slight unevenness on the surface of the floor base material, it will firmly adhere to the floor base material.When the floor base material is a synthetic resin, a high-temperature hot-melt type pressure-sensitive adhesive will By slightly melting the surface, the adhesive strength between the floor base material and the hot-melt type pressure-sensitive adhesive will be further improved. By such a simple method, the pressure-sensitive adhesive can be used when peeling the surface material. It is possible to manufacture a flooring material that does not come off and is reliably left on the flooring base material side.

[Brief description of drawings]

FIG. 1 is a front view of an embodiment of the present invention.

FIG. 2 is an enlarged sectional view of a main part of the above.

3 (a), (b) and (c) are explanatory views showing a step of adhering a surface material in the present invention.

4 (a) and 4 (b) are explanatory views showing an example in which the adhesive is linearly applied by the nozzle of the same.

5A and 5B are a front view and a plan view showing an example of linearly applying an adhesive with a plurality of nozzles in the present invention.

FIG. 6A is an explanatory view of a state in which the adhesive is applied linearly in the vertical direction by a plurality of nozzles, and FIG. 6B shows a state in which the adhesive is subsequently applied linearly in the horizontal direction. FIG.

FIG. 7 is an explanatory diagram showing an arrangement example of nozzles used in the above.

8A and 8B are respectively a plan view and a front view showing an application example in which an adhesive is applied.

9A and 9B are a plan view and a front view showing another application example in which an adhesive is applied.

FIG. 10 is an exploded front view of a conventional example.

FIG. 11 is an exploded front view of another conventional example.

[Explanation of symbols]

 1 Floor base material 2 Adhesive 3 Surface material 4 Floor material

Claims (3)

[Claims] 1. A floor material composed of a floor base material and a surface material which is releasably bonded onto the floor base material via an adhesive,
A floor material, characterized in that the upper surface of the floor base material is made rougher than the lower surface of the surface material so that the adhesive remains on the floor base material side when the surface material is peeled off. 2. A flooring material comprising a flooring material and a surface material which is releasably bonded onto the flooring material via an adhesive,
The pressure-sensitive adhesive is a hot-melt type pressure-sensitive adhesive that adheres more strongly to the upper surface of the floor base material than to the lower surface of the surface material so that the adhesive remains on the floor base material side when the surface material is peeled off. The flooring material. 3. A method for producing a flooring material comprising a flooring material and a surface material which is releasably bonded onto the flooring material via an adhesive, the method comprising: A method for producing a flooring material, which comprises applying a hot-melt type pressure-sensitive adhesive heated to 200 ° C. and then adhering a surface material to the pressure-sensitive adhesive.