JPH0717703Y2 - Floor material for floor wiring - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a floor material in a floor wiring system of an intelligent building or the like.

[Prior Art] Wiring and piping in an office having OA equipment and the like are complicated and large in number, and the treatment method thereof is an important issue in consideration of the office environment.

This type of conventional floor wiring floor material is made of lightweight concrete,
A panel-shaped base 1a is formed of metal, synthetic resin, or the like, and legs 1b are attached to four corners or the middle of the back side of the base 1a so that the base 1a is located at a constant height from the floor ( (See FIG. 7 (a)). Then, these bases 1a are sequentially arranged on the floor with their legs 1b facing down so that wiring and piping are performed in the space between the base 1a and the floor, and the top surface of the base 1a is adhesively bonded to the tile carpet 5 Was laying.

As another flooring material, the lightweight concrete blocks 1c are arranged with the wiring groove 1d opened, and the lightweight concrete block 1c and the wiring groove 1d are covered with a vinyl chloride film 1e, and the top of the groove 1d is covered. There is a block 1c covered with a cross-linking material 1f made of metal or the like so as to be flush with the upper surface (see FIG. 7 (b)). In this case, wiring and piping are provided in the groove 1d, and the tile carpet 5 is laid on each upper surface of the block 1c and the cross-linking material 1f via an adhesive.

[Problems to be solved by the invention] In order to prevent the tile carpet 5 from moving, conventionally, the base 1a is used.
The tile carpet 5 was attached by applying an adhesive to the block 1c or the cross-linking material 1f. However, if the tile carpet 5 is directly adhered to the hard surfaced cross-linking material 1f with an adhesive, running noise (a sound emitted when a person runs on the floor) is generated due to lack of cushioning properties. There was a drawback that I didn't feel well.

Therefore, in order to improve the running feeling, piles are erected on the entire upper surface of the cross-linking material 1f so that the piles work to increase the cushioning property and reduce the running noise (see FIG. 6).

However, the cross-linked material 1f in which the pile is raised also had the following drawbacks. That is, the backing material of the tile carpet 5 is bitumen (tar) as shown in FIG.
There are two types: a backing material having a non-woven fabric formed on the back surface and a backing material made of a vinyl chloride hacking material as shown in FIG. 5 (b).

When the bituminous tacking material is used, the napped pile of the cross-linking material comes to pierce the nonwoven fabric (see FIG. 6). Therefore, while having the advantage that it can be fixed without using an adhesive when constructing a tile carpet, the fact that the napped pile of the cross-linking material pierces the non-woven fabric means that the friction resistance with the tile carpet becomes stronger, and once the tile When a carpet is placed on a napped pile and there is a gap between it and the carpet laid next to it, the carpet cannot be moved because the frictional resistance is strong even if the tile carpet is pulled, and the construction is extremely difficult. It had the drawback of being difficult.

Further, when a tile carpet made of a vinyl chloride backing material is placed on a napped pile made of a cross-linking material, it has the following two drawbacks. That is, one of them is that the adhesive for bonding the tile carpet onto the cross-linking material penetrates into the napped pile, so that the amount of the adhesive used increases. In addition, the adhesive is composed of a mixture of resin and water, and because it is tacky, it requires an open time after application (which means the time to remove the water contained in the adhesive). Usually 5 to 10
The place where the open time of the quantile is enough, but there was a problem that it took 20 to 30 times as long as the normal open time. The reason why open time is required here is that the backing material for tile carpet does not have air permeability, so if it is laid immediately after application, the moisture of the adhesive does not easily fly off and the initial adhesive strength is affected. It is important to have open time.

The second drawback is that when the back surface of the tile carpet is a slippery vinyl chloride backing material, the pile pile of the cross-linking material compresses and recovers repeatedly due to the running of the person, so the tile carpet has a little directionality, and It will have the property of moving in the pile direction. Therefore, when the tile carpet is laid on the entire surface of the floor, there is a problem that the tile carpet is lifted up due to a change with time. For this reason, it is the current situation that tile carpets made of vinyl chloride backing material are difficult to use for cross-linking materials in which napped piles are planted.

The present invention has been made in view of the above points, and an object thereof is to enable a tile carpet to be laid on a floor material in which napped piles are planted so that a small amount of adhesive can be applied and the tiles after the tiles are installed. It is an object of the present invention to provide a floor wiring floor material which prevents the carpet from moving in the pile direction and has a good cushioning property and a low running noise and a good running feeling.

[Means for Solving the Problems] The floor wiring floor material according to the present invention is one in which a raised pile is formed on the upper surface of the floor base material, and the surface of the raised pile is smoothed with a thermoplastic resin layer. .

When smoothing the surface of the napped pile with the thermoplastic resin layer, in addition to hot melt powder resin processing, the thermoplastic resin layer should be formed by the spray method, roll coater method or knife coater method. You can

The napped pile formed on the upper surface of the floor base material may be formed of long piles and short piles, or may be formed of piles having the same pile length.

Further, the floor wiring floor material according to the present invention may be one in which a raised pile is formed on the upper surface of the floor base material and the raised pile itself is heated to its melting temperature to smooth the surface of the raised pile. Good.

[Embodiment] An embodiment of the present invention will be specifically described below with reference to the drawings.

1 is a floor base material, and there are two types of shapes, a base type and a groove type. The base type is made of lightweight concrete, metal, synthetic resin, etc. to form a panel-shaped base 1a, and legs 1b are attached to the four corners or the middle of the back side of the base 1a so that the base is located at a certain height from the floor. I am trying. And these foundations 1a are legs
It is arranged such that 1b is placed on the floor and the wiring is arranged in the space between the base 1a and the floor. In addition, the groove type is provided by opening the lightweight concrete blocks 1c to each other by the wiring groove 1d, and the lightweight concrete block 1c and the wiring groove 1d.
Is covered with a vinyl chloride film 1e, and the groove is covered with a crosslinking material 1d made of metal or the like so as to be flush with the upper surface of the block 1c.

A napped pile 2 is planted on the upper surface of the floor base material 1 in a standing state. The panel is raised by a known electrostatic flocking method. Further, as the material of the napped pile 2, a strong fiber such as polyamide or polyester is used. The use of fibers with weak stiffness is not suitable as a flooring material because it tends to set easily. It is preferable that the napped pile 2 has a fineness of 10d to 60d and a panel length of 0.8mm to 1.5mm. Pile pile 2
If the fineness is less than 10d and the panel length is less than 0.8mm, the cushioning property at the time of running will be lacked, resulting in generation of runners. On the other hand, when the fineness is 60 d or more, as the pile diameter becomes thicker, the ratio between the diameter and the pile length becomes smaller, so that it is difficult to vertically plant the piles when the piles are planted, and the napped piles 2 fall asleep, which is unfriendly. In addition, if the pile length is 1.5 mm or more, the waist becomes weak, causing fatigue during running, and the cushioning property deteriorates.

In this example, nylon was used as the napped pile 2, the fineness thereof was 14d, and the pile length was 1 mm, and the pile was napped on the entire surface of the floor base material 1 by the electrostatic flocking method.

Next, the surface of the napped pile 2 is smoothed with the thermoplastic resin layer 3.

As a processing method for smoothing the surface of the napped pile 2,
In this example, hot melt powder resin processing was performed. In this processing method, the hot melt powder resin is placed on the surface of the napped pile 2 and heated to melt the hot melt powder resin, thereby smoothing the surface of the napped pile 2. In this example, the melting point of the hot melt powder resin is
Ethylene vinyl acetate with a particle size of 80 mesh bath at 95 ° C was used (manufactured by Tokyo Ink Co., Ltd.). As a coating method, a knife coater and a sieve are used, and the napped pile 2 is evenly placed. The coating amount at this time is preferably 80 g / m ² or more. If the coating amount is less than that, the tip of the napped pile 2 comes out of the thermoplastic resin layer 3, and the effect intended by the present invention cannot be sufficiently obtained. As a result of heating for 5 minutes at a melting temperature of 130 ° C., a thermoplastic resin layer 3 is formed on the surface of the napped pile 2 as shown in FIG. 1, and the base portion of the napped pile 2 appears below the thermoplastic resin layer 3. A structure in which the floor base material 1 is located in the lower part was formed. In terms of physical properties of the structure thus obtained, the pile is napped, so the cushioning property is still maintained, the running sound is also absorbed by the pile and the thermoplastic resin layer 3, and the surface of the napped pile 2 is smooth. Therefore, the object of the present invention is sufficiently achieved.

As the material of the thermoplastic resin layer 3 used in this embodiment,
In addition to the above, acrylic type, SBR latex, urethane type, polyamide type, PET type or foamed resin is also included.

Further, in this embodiment, the case where the thermoplastic resin layer 3 is formed on the surface of the napped pile 2 has been described, but the present invention is not necessarily limited to this.

That is, the thermoplastic resin layer 3 may enter the root of the napped pile 2 without remaining on the surface of the napped pile 2. When the thermoplastic resin layer 3 is allowed to enter the joist of the napped pile 2, the amount of hot melt powder resin used is 500 to 6
It becomes 00 g / m ² , and by using the amount in this range, the whole napped pile 2 can be filled with the hot melt powder resin to make the surface smooth (see FIGS. 1 (b) and 2 (d)). .

Further, in forming the napped pile 2, at the time of electrostatic flocking, bristles having different pile lengths as shown in FIGS. 2A to 2D may be flocked. For example, the fineness of nylon is 14d
When pile lengths of 0.8 mm and 1 mm are mixed and flocked, the long pile 2a will be sandwiched between the short piles 2b, the lower part of the pile will be dense and the upper part of the pile will be rough. Since the part is composed of the thermoplastic resin layer, the short pile 2b plays a role of wedges and can further strengthen the waist during traveling. Various modified examples in the case where surface treatment is performed on the napped pile 2 formed by mixing the long and short piles 2a and 2b with hot melt powder resin, FIG.
It is shown in (d). Each of these structures can be selected according to the desired physical properties. FIG. 2A shows a structure in which the pile density of the thermoplastic resin layer 3 is low, so that an appropriate cushioning property of the surface can be obtained. In FIG. 2 (b), the thermoplastic resin layer 3 is thinned to obtain a softer cushioning property than in FIG. 2 (a). FIG. 2 (c) shows a thermoplastic resin layer 3 which is thinned to form pores in a part of the resin layer.
The adhesive strength with the tile carpet is improved as compared with FIG. Fig. 2 (d) shows a thermoplastic resin layer 3 formed up to the root of the napped pile 2 and has a structure that further bears a load as compared with Fig. 2 (a), and is a floor base material under a particularly large load. Suitable for

In the present embodiment, the case where the thermoplastic resin layer 3 is formed on the surface of the napped pile 2 by hot melt powder resin processing has been described, but the present invention is not necessarily limited to this, and a spray method is also available. Alternatively, a roll coater system or a knife coater system may be used.

Next, the case of each of these methods will be described respectively.

(1) Spray method As the resin, water-soluble ethylene vinyl acetate (manufactured by Showa High Polymer Co., Ltd.) was used. This water-soluble resin has a viscosity of 500-5000 cps
By spraying with a (B type viscometer) and applying until the tip of the napped pile 2 was covered, the napped pile 2 could be filled and the surface could be made smooth.

However, this method has the following drawbacks.

Cost ... There are many losses when spraying (2
~ 3 times is required).

For example, it is difficult to form only the tip portion of the napped pile 2 into a film like hot melt powder resin.

(2) Roll coater method This is a method in which resin is attached to a roll with a constant thickness and transferred to the napped pile 2.

Using ethylene vinyl acetate resin, viscosity 5,000 to 10,000 CPS
I did it in. When the viscosity was 5000 CPS or less, the desired thickness could not be obtained in one time, and therefore it had to be performed several times. Further, when the viscosity is 10,000 CPS or more, the resin cannot be uniformly applied, and thus it has been faded.

The surface could be smoothed even with this roll coater method.

(3) Knife coater system The resin used in (2) above was applied at a viscosity of 5000 to 20000 CPS. When the viscosity was 5000 CPS or less, the resin flowed and could not be successfully applied to the floor base material 1. Also, the viscosity is 20000 CPS
When it becomes above, the fading occurred.

Even with this knife coater method, the surface of the napped pile 2 can be made smooth.

When the methods (2) and (3) are adopted, there are the following difficulties. For example, when the surface of the floor base material 1 is uniform, it is preferable, but when the surface of the floor base material 1 is not uniform, it cannot be applied uniformly.

(4) Heat-melting method The surface of the napped pile 2 is pressed and melted by a hot roll and a hot plate press whose temperature is equal to or higher than the melting point of the pile 2, and a smooth molten resin layer 4 is formed on the surface of the napped pile 2. Formed.

It is desirable that the heat roll and the flat plate are coated with a fluororesin so that the melted fibers do not adhere to them. The melting temperature of nylon is 220-270 ℃, and the pressure is 5k on a flat surface.
It was set to g / cm ² . Under the above conditions, the surface of the napped pile 2 could be melted and made smooth (see FIG. 3).

However, a drawback of this method is that running noise is likely to be generated because the napped pile 2 on the surface becomes the molten resin layer 4.

The test results of each of the above methods are shown in the following table.

Cushioning property: JIS L1021 rug test method was used.

Running sound: Judgment was made based on the feeling of running.

Friction resistance: Measured by the inclined plate method. The sample was placed on the non-woven fabric of bitumen bucking, and the distance moved according to the angle was measured.

Movement of tile carpet: The sample was fixed, a tile carpet was placed on it, and an impact load was applied from above to measure the movement of the carpet.

Adhesive strength (surface resin): Sekisui's double-sided tape No.610 is 5 ^cm x 5
^It was cut into ^cm and attached to a sample, and when it was peeled off, the peelability of the napped pile and the resin was judged.

Workability: Pile formed on the floor base material even if the thickness of the floor base material is uneven, or if the surface of the floor base material is uneven or has ribs etc. formed on the surface of the floor base material. It was judged whether or not the resin could be uniformly applied to the surface of the pile.

As can be seen from the above table, the physical properties obtained by hot-melt powder resin processing are superior to those obtained by any other method.

When a napped pile is formed on a base type floor base material and a resin is formed on the surface of the pile, it is difficult to perform the treatment except in the case of hot melt powder resin processing or spraying. However, the spray method has a large loss of resin, is expensive, is inferior in productivity, and has a problem in hygiene. In this respect, hot melt powder resin processing can be applied uniformly with a sieve, there is almost no loss, and since it is only necessary to melt with heat, the production economy is high.

[Effects of the Invention] Since the floor material for floor wiring according to the present invention has the above-mentioned configuration, it has the following unique effects.

(1) Since it has an appropriate cushioning property, there is no running noise and the running feeling is good.

(2) Since it can be used regardless of the type of backing material for tile carpet, its utility value as a floor material of this type is extremely high.

(3) Since the surface of the napped pile is coated with a thermoplastic resin layer or the surface of the pile itself is melted by heat, the durability is further improved without the sleeping of the pile, and the life is long. Also, the cushioning property is improved.

(4) The amount of the adhesive used to bond the tile carpet can be made smaller than that of the floor material of the conventional pile raised fabric.

[Brief description of drawings]

1 (a) and 1 (b) are sectional views showing an embodiment of the present invention, and FIGS. 2 (a) to 2 (d) are sectional views showing another embodiment of the present invention. FIG. 3 is a cross-sectional view showing another embodiment of the present invention when the napped pile itself is heat-melted, FIG. 4 is a cross-sectional view showing a conventional example, and FIGS. 5 (a) and 5 (b) are tile carpets. FIG. 6 is a cross-sectional view showing a joined state of the floor base material and the tile carpet, and FIGS. 7A and 7B are perspective views showing a conventional floor base material. 1 ... Floor base material, 2 ... Pile pile, 3 ... Thermoplastic resin layer, 4
… Thermal melting layer.

Claims (4)

[Scope of utility model registration request] 1. A floor wiring floor material characterized in that a raised pile is formed on the upper surface of a floor base material, and the surface of the raised pile is smoothed with a thermoplastic resin layer. 2. The floor material for floor wiring according to claim 1, wherein the surface of the napped pile is smoothed by hot melt powder resin processing. 3. A utility model registration claim 1 in which the napped pile is formed of a long pile and a short pile.
Item 2. A floor material for floor wiring according to Item 2 or Item 2. 4. A floor wiring floor material characterized in that a napped pile is formed on the upper surface of a floor base material, and a heat-melting layer is formed on the surface of the napped pile for smoothing.