JP2002285480A - Antistatic rug and electroconductive pile yarn for composing the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an antistatic rug using electroconductive pile yarns for carpets designed to sufficiently exhibit electroconductive performances possessed by electroconductive fibers without requiring much time and labor for production. SOLUTION: This antistatic rug 10 is obtained by picking electroconductive pile yarns 14 in a fiber substrate 12 and integrating a backing layer 15 with the back surface. A metal foil 20 prepared by picking the electroconductive pile yarns 14 is interposed between the backing layer 15 and the fiber substrate 12 to make the respective electroconductive pile yarns 14 electrically conductive.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an antistatic device applied to rugs such as carpets and mats laid on the floor of vehicles such as automobiles, trains and aircraft, or rugs such as carpets and mats laid on the floor of houses. The present invention relates to a rug and a conductive pile yarn for constituting the rug. More specifically, the present invention relates to an antistatic rug having an excellent conductive effect and an air discharge effect, and also having a sound absorbing effect, and a conductive pile yarn for constituting the same.

[0002]

2. Description of the Related Art Conventionally, as a charge removing carpet 1 for absorbing and removing static electricity charged on a human body, as shown in FIG. 12, a fiber base material 2 on which discharge paper 3 having a function of discharging static electricity is laminated is used. It is known that a pile yarn 4 containing conductive fibers 5 is driven from the fiber base material 2 side into a substantially U-shape, and a backing layer 6 is formed on the discharge paper 3 side.

In the neutralization carpet 1, when the human body comes into contact with the neutralization carpet 1, the conductive fibers 5 contained in the pile yarn 4 instantaneously guide the static electricity charged on the human body to the carpet 1 side, and the carpet 1 The air is discharged in the air by the discharge paper 3 in 1. In addition, a part of the static electricity is discharged in the air via the conductive fibers 5 included in the pile yarn 4 again via the discharge paper 3.

As described above, the pile yarn 4 of the static elimination carpet 1
The conductive fiber 5 included in the carpet 1 serves as a conductive path for conducting static electricity from the human body to the carpet 1 and also functions as a discharging unit for conducting static electricity in the air.
Played a very important role in

[0005]

However, in the pile yarn 4 of the static elimination carpet 1, the conductive fiber 5 is simply bundled together with the constituent fibers of the pile yarn 4 and twisted to form the conductive fiber 5. Since the conductive fibers 5 do not protrude from the surface of the pile yarn 4, the conductive fibers 5 are spirally wound around the outer periphery of the pile yarn 4 as shown in FIG. The performance was sufficiently exhibited, and the production of such a pile yarn 4 required a great deal of labor and labor.

In addition, if the conductive fiber 5 is simply wound around the outer periphery of the pile yarn 4 in a spiral shape, if the conductive fiber 5 is partially disconnected, static electricity is collected or discharged. May not be enough. For this reason, it is also an important solution in this kind of rugs such as a carpet having a static elimination to prevent an unexpected static elimination effect phenomenon such as disconnection of the conductive fiber 5.

Further, rugs laid on the floor of vehicles such as automobiles, trains, and aircrafts and houses are used to remove static electricity and adsorb dust as described above, as well as to keep house rooms and vehicle rooms quiet. Is effective, but it is also required to further enhance the sound absorbing effect.

[0008] The present invention has been made in view of such circumstances, and an object of the invention according to claims 1 to 5 is to provide an antistatic rug with improved conductivity. It is an object of the invention according to claims 6 to 10 to provide an antistatic rug having excellent conductivity and a sufficient sound absorbing effect.

It is a further object of the invention according to claims 11 to 14 that the above-mentioned claims 1 to 10 are provided.
Conductive pile yarn for antistatic rugs, which is used to compose antistatic rugs, does not require much labor and labor for manufacturing, and is capable of fully exhibiting the conductive performance of conductive fibers The purpose is to provide.

[0010]

Means for Solving the Problems In order to solve the above-mentioned problems, first, means adopted by the invention according to claim 1 will be described with reference numerals used in the embodiments described later. "An antistatic rug 10 in which a conductive pile yarn 14 is driven into the fiber base material 12 and a backing layer 15 is integrated on the back surface, wherein the backing layer 15 and the fiber base material 12
A metal foil 20 into which the conductive pile yarns 14 are to be inserted, to electrically connect the conductive pile yarns 14 with each other.
0 ".

That is, the antistatic rug 1 according to claim 1
0 is, for example, an electric protection carpet 11 shown in FIG.
A pile yarn 1 containing a conductive fiber 14b on a fiber base material 12 on which a discharge paper 13 having a function of discharging static electricity is laminated, the static electricity charged on a human body being absorbed and removed.
4 is driven from the fiber base 12 side into a substantially U-shape, a backing layer 15 is formed on the discharge paper 13 side, and a conductive pile yarn 14 is interposed between the backing layer 15 and the fiber base 12. The metal foil 20 to be driven is interposed, that is, the metal foil 20 is interposed in the conventional electric protection carpet 1 shown in FIG.

In the static elimination carpet 11 which is the antistatic rug 10, when the human body comes into contact with the static elimination carpet 11, the conductive fiber 14b contained in the pile yarn 14 is used.
Instantaneously guides the static electricity charged on the human body to the carpet 11 side and is discharged in the air by the discharge paper 13 in the carpet 11, but each conductive pile thread 14 is electrically connected via the metal foil 20. Therefore, even if a part of the conductive fiber 14b is disconnected, the static electricity is instantly and evenly guided to the carpet 11 through the metal foil 20. It is.
In addition, a part of the static electricity is discharged in the air through the discharge paper 3 and the metal foil 20 and through the conductive fiber 14b included in the other pile yarn 14.

As described above, the conductive fiber 14b and the metal foil 20 included in the pile yarn 14 of the static elimination carpet 11 are:
It serves as a conductive path for conducting static electricity from the human body to the carpet 11 side, and also functions as a discharging means for conducting static electricity in the air, and plays an extremely important role in the static eliminating carpet 11.

As shown in FIG. 3, the metal foil 20 of the embodiment has a large number of openings 22 formed in the inner portion thereof. In addition to the sufficient adhesion to the metal foil 20, the presence of the opening 22 allows the material to be reduced without impairing the function of the metal foil 20 itself.

Therefore, the antistatic rug 10 according to the first aspect of the present invention has no countermeasure, for example, a voltage of 10 to 8 kV of static electricity generated in the passenger compartment is hardly felt by a person. Kilovolts, and the conductive fibers 14 contained in the pile yarn 14
b and the metal foil 20 can effectively perform antistatic and discharging, that is, "static elimination", and exhibit a superior static elimination effect than the conventional one that could only be reduced to about 3 kilovolts. -ing

In order to solve the above problems, means according to the invention according to claim 6 will be described prior to those according to claims 2 to 5, and the antistatic rug 1 according to claim 6 will be described.
0 is “An antistatic rug 10 that has a foamed resin layer 106 on the back side while driving the conductive pile yarn 14 around the fiber base material 104,
An antistatic rug 10 "characterized by forming a large number of through holes 30 penetrating the front and back.

That is, as shown in FIG. 4, the antistatic rug 10 according to claim 6 comprises a nonwoven fabric 102 laminated with a discharge paper 103 having a function of discharging static electricity, and
04, and the pile yarn 14 containing the conductive fiber 14b.
And a layer 105 made of SBR is provided on the back side of the fiber base material 104 to prevent the pile yarn 14 from coming off. Thereafter, the fiber base material 104 is heated at a temperature of 170 to 180 ° C. to partially melt the constituent fibers of the pile yarn 14 so that the tip of the conductive fiber 14 b protrudes from the cut surface of the pile yarn 14 in an antenna shape. Was. Next, the layer 10 made of SBR
5, a filler-containing open-cell type SBS foamed resin layer 106, a thermoadhesive fiber-containing felt layer 107, an SBS resin layer 108, and a urethane home 109 are provided in this order.

Finally, a large number of through-holes 30 having a diameter of about 1.5 mm are formed in the carpet 101 so as to penetrate the front and back, thereby obtaining the antistatic rug 10 as shown in FIG.

In the antistatic rug 10 having the through-holes 30 formed as described above, as shown in FIG. 5, especially when the foamable resin layer 106 is viewed, the sound-absorbing holes 31 are numerous on the inner surface of each through-hole 30. Is formed. Layer 106
This is because, since the resin is foamed, each foamed portion is broken and exposed by forming the through hole 30. Innumerable sound absorbing holes 31 exposed in the through holes 30
Represents the reflection of the sound that has entered through the opening of the through hole 30,
This is performed in the through hole 30, and literally exerts a sound absorbing effect.

Therefore, the antistatic rug 10 according to the sixth aspect exhibits not only an excellent static elimination function by the conductive pile yarns 14 including the conductive fibers 14b, but also a sound absorbing effect by the through holes 30. As a result, it is possible to keep the inside of the vehicle and the passenger compartment quiet.

[0021] In order to solve the above-mentioned problem, the means adopted by the invention according to claim 2 or 7 is that the antistatic rug 10 according to claim 1 or 6 is referred to as "conductive pile yarn 14". Contains the conductive fiber 14b, a fiber having a melting point lower than that of the conductive fiber 14b is used as the constituent fiber 14a of the pile yarn 14, and the pile yarn 14 has the same melting point as that of the constituent fiber 14a. By heating at a temperature, the constituent fibers 14a are partially contracted, and a part of the conductive fibers 14b is projected from the constituent fibers 14a. "

As described above, by forming the conductive pile yarn 14 from the conductive fiber 14b and the constituent fiber 14a having a lower melting point, the entire conductive pile yarn 14 has the same melting point as that of the constituent fiber 14a. When heated at temperature,
Since the constituent fibers 14a are softened or deformed, if the temperature is returned to room temperature, the constituent fibers 14a partially shrink. As described above, when the constituent fibers 14a partially shrink, as a result, a part of the conductive fibers 14b, which do not thermally change, protrudes from the constituent fibers 14a.

Therefore, in the antistatic rug 10 according to claim 2 or 7, since the conductive fibers 14b protrude from each of the conductive pile yarns 14, the conductivity for static elimination is very high. In order to solve the above-mentioned problems, means adopted by the invention according to claim 3 or claim 8 is based on the antistatic rug 10 according to claim 2 or claim 7. “The conductive pile yarn 14 is composed of a high melting point component and a low melting point component, and the composite yarn having a lower melting point than the conductive fiber 14b is used as the constituent fiber 14a.
Is heated at a temperature approximately equal to the melting point of the low melting point component of the constituent fibers 14a to partially shrink the constituent fibers 14a,
That is, a part of the conductive fibers 14b is protruded from the constituent fibers 14a. "

As described above, the conductive pile yarn 14 is composed of the high melting point component and the low melting point component, and the low melting point component has a lower melting point than the conductive fiber 14b. If the whole 14 is heated at the same temperature as the melting point of the low-melting component, the constituent fibers 14a are partially softened or deformed, so that when the temperature is returned to room temperature, the constituent fibers 14a partially shrink. in this way,
When the constituent fibers 14a partially shrink, as a result, a part of the conductive fibers 14b that do not thermally change from the constituent fibers protrudes from the constituent fibers 14a.

Therefore, in the antistatic rug 10 according to the third or eighth aspect, since the conductive fibers 14b protrude from each of the conductive pile yarns 14, the conductivity for static elimination is extremely high. In order to solve the above-mentioned problems, the invention according to claim 4 or claim 9 employs the method according to claim 2 or 3 or claim 7 or claim 8. The prevention rug 10 is that "a fiber having a lower melting point than the conductive fiber 14b is used as a part of the constituent fiber 14a".

As described above, if a fiber having a lower melting point than the conductive fiber 14b is used as a part of the constituent fiber 14a,
When the entire conductive pile yarn 14 is heated at a temperature substantially equal to the melting point of the low melting point component, the constituent fibers 14a are partially softened or deformed.
4a will partially shrink. As described above, when the constituent fibers 14a partially shrink, as a result, a part of the conductive fibers 14b, which do not thermally change, protrudes from the constituent fibers 14a.

Therefore, in the antistatic rug 10 according to claim 4 or claim 9, since the conductive fibers 14b protrude from the respective conductive pile yarns 14, the conductivity for static elimination is very high. In order to solve the above-mentioned problem, the means according to the invention according to claim 5 or claim 10 is a method according to claim 2 or 3, or the method according to claim 7 or 8. Rug 10
"The fiber length of the constituent fiber 14a is
the same as or shorter than the fiber length of b. "

In this manner, if the entire conductive pile yarn 14 is heated and returned to room temperature, the constituent fibers 1
4a will partially shrink. As described above, when the constituent fibers 14a partially shrink, the length of the conductive fibers 14b is equal to or shorter than the length of the conductive fibers 14b. The portion easily projects from the constituent fiber 14a.

Therefore, also in the antistatic rug 10 according to claim 5 or claim 10, since the conductive fibers 14b protrude from each of the conductive pile yarns 14, the conductivity for static elimination is very high. Now, in order to achieve the above object, the invention according to claim 11 uses the pile yarn 14 in the conductive pile yarn 14 for the antistatic rug 10 including the conductive fiber 14b. A fiber having a melting point lower than that of the conductive fiber 14b is used as the constituent fiber, and the pile yarn 14 is partially heated by heating the pile yarn 14 at a temperature similar to the melting point of the constituent fiber 14a. By shrinking, the constituent fiber 1
The gist of the present invention is a conductive pile yarn 14 for the antistatic rug 10, wherein the conductive fibers 14b are protruded from the inside 4a.

As described above, by forming the conductive pile yarn 14 from the conductive fiber 14b and the constituent fiber 14a having a lower melting point, the entire conductive pile yarn 14 has the same melting point as that of the constituent fiber 14a. When heated at temperature,
Since the constituent fibers 14a are softened or deformed, if the temperature is returned to room temperature, the constituent fibers 14a partially shrink. As described above, when the constituent fibers 14a partially shrink, as a result, a part of the conductive fibers 14b, which do not thermally change, protrudes from the constituent fibers 14a, thereby forming the antistatic rug 10. It is an excellent thing to do.

The twelfth aspect of the present invention uses a composite fiber comprising a high melting point component and a low melting point component, wherein the low melting point component has a lower melting point than the conductive fiber 14b as the constituent fiber 14a. By heating the pile yarn 14 at a temperature similar to the melting point of the low melting point component of the constituent fibers 14a, the constituent fibers 14a are partially contracted, and the conductive fibers 14b are selected from the constituent fibers 14a. The antistatic rug 10 according to claim 11, wherein the rug is projected.
The purpose of the present invention was to make a conductive pile yarn.

As described above, the conductive pile yarn 14 is composed of the high melting point component and the low melting point component, and the low melting point component has a melting point lower than that of the conductive fiber 14b. If the whole 14 is heated at the same temperature as the melting point of the low-melting component, the constituent fibers 14a are partially softened or deformed, so that when the temperature is returned to room temperature, the constituent fibers 14a partially shrink. in this way,
If the constituent fibers 14a partially shrink, as a result, a part of the conductive fibers 14b that do not thermally change will protrude from the constituent fibers 14a, and as a result, the antistatic rug 1
That is, it is excellent as a constituent of 0.

Further, the invention according to claim 13 is characterized in that a fiber having a lower melting point than the conductive fiber 14b is used as a part of the constituent fiber 14a.
The conductive pile yarn for the antistatic rug 10 described in 2 was used as the gist.

The conductive pile yarn according to claim 13.
Also, since the constituent fibers 14a partially shrink, as a result, a part of the conductive fibers 14b that do not thermally change from the protrusions protrude from the constituent fibers 14a, thereby constituting the antistatic rug 10. It is excellent.

According to a fourteenth aspect of the present invention, the fiber length of the constituent fibers 14a is equal to or shorter than the fiber length of the conductive fibers 14b. The conductive pile yarn for No. 10 was used as the gist.

Accordingly, the conductive pile yarn 14 according to the fourteenth aspect also has a very good conductivity for static elimination since the respective conductive fibers 14b protrude. It is an excellent material for constituting the antistatic rug 10.

[0037]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, the inventions according to the respective claims constructed as described above will be described with reference to the embodiments shown in the drawings. First, FIG. 1 and FIG.
1 is shown. The antistatic rug 10 shown in FIG. 1 is used as an anti-static carpet 11 laid on the floor in a house or an automobile to absorb and remove static electricity charged on a human body. A pile yarn 14 containing conductive fibers 14b is driven into the fiber base material 12 on which the discharge paper 13 having the function of discharging the paper is laminated so as to be substantially U-shaped from the fiber base material 12 side, and a backing is formed on the discharge paper 13 side. A layer 15 is formed, and a metal foil 20 into which the conductive pile yarn 14 is driven is interposed between the backing layer 15 and the fiber base material 12.

When the human body comes into contact with the neutralizing carpet 11, the conductive fibers 14 b included in the pile yarn 14 instantly guide the static electricity charged to the human body to the carpet 11 side, and Although the air is discharged in the air by the discharge paper 13, each conductive pile yarn 14 is in a state of being electrically conducted through the metal foil 20. Even if there is a disconnection, static electricity is instantaneously and evenly guided to the carpet 11 through the metal foil 20. Some of the static electricity is
In addition, the air is discharged in the air through the conductive fibers 14b included in another pile yarn 14 via the metal foil 20.

The antistatic rug 10 shown in FIG. 2 is also an anti-static carpet 101 laid on the floor of a passenger compartment, and a discharge paper 103 having a function of discharging static electricity is laminated on a nonwoven fabric 102. A pile yarn 14 containing conductive fibers 14b is driven into the fiber base material 104, and a layer 105 made of SBR is provided on the back surface of the fiber base material 104 to prevent the pile yarn 14 from coming off. Then, the fiber base material 104 was heated at a temperature of 170 to 180 ° C. to partially melt the constituent fibers of the pile yarn 14, and the tip of the conductive fiber 14 b protruded from the cut surface of the pile yarn 14 into an antenna shape. .

Next, the antistatic rug 1 shown in FIG.
In the case of No. 0, a filler-containing open-cell type SBS foamed resin layer 106, a thermoadhesive fiber-containing felt layer 107, an SBS resin layer 108, and a urethane home 109 are provided in this order on the lower surface of the layer 105 made of SBR. And this figure 2
In the antistatic rug 10 shown in FIG.
This is interposed between the fiber base material 104 and the foamed resin layer 106.

The metal foil 20 interposed in the antistatic rug 10 is formed of a metal material such as gold, silver, or aluminum which is easily formed into a foil and has excellent conductivity, as shown in FIG. Various forms can be adopted.
The metal foil 20 shown in FIG. 3A has an outer periphery formed as a continuous frame portion 21, and a strip-shaped continuous portion 23 is connected to the frame portion 21 in a lattice shape. An opening 22 is formed between the continuous portions 23. The metal foil 20 shown in FIG.
Are continuous at each vertex side thereof, so that these openings 2
Together with the continuous portion 23 formed between the two, the whole is formed like a checkered pattern. In the metal foil 20 shown in FIG. 3C, each opening 22 has a circular hole.

As described above, since a large number of openings 22 are formed in the inner portion of the metal foil 20, through the openings 22, the backing layer 15 can be formed on the discharge paper 13 or between the fiber base material 104 and the foamed resin layer 106. Not only is the bonding sufficient, but the presence of the openings 22 can reduce the amount of material without impairing the function of the metal foil 20 itself.

FIG. 4 shows an antistatic rug 10 according to the sixth to tenth aspects.
In a similar manner to the antistatic rug 10 shown in FIG. 2, a discharge paper 103 having a function of discharging static electricity is laminated on a nonwoven fabric 102 to form a fiber base material 104, on which a pile yarn 14 containing conductive fibers 14b is provided. And a layer 105 made of SBR is provided on the back side of the fiber base material 104 to prevent the pile yarn 14 from coming off. After that, the fiber base material 104 is changed to 170-18
Heating was performed at a temperature of 0 ° C. to partially melt the constituent fibers of the pile yarn 14, and the tip of the conductive fiber 14 b protruded from the cut surface of the pile yarn 14 in an antenna shape. Then, SB
An open-cell type SBS foamed resin layer 106 containing a filler, a felt layer 107 containing a thermo-adhesive fiber, an SBS resin layer 108, and a urethane home 109 are provided in this order on the lower surface of the layer 105 made of R.

Finally, in the antistatic rug 10, a through hole 30 having a diameter of about 1.5 mm is formed in the antistatic rug 10.
A large number of the members 1 are pierced through the front and back. In the antistatic rug 10 having the through-holes 30 formed thereon, as shown in FIG.
As for the sound absorbing holes 31 on the inner surface of each through hole 30,
Are formed innumerably. Because the layer 106 is formed by foaming the resin, each foamed portion is broken and exposed by forming the through hole 30. The innumerable sound absorbing holes 31 exposed in the through holes 30
The sound that has penetrated from the opening is reflected in the through-hole 30, and literally exhibits a sound absorbing effect.

Accordingly, the antistatic rug 10 according to the sixth aspect exhibits not only an excellent static elimination function by the conductive pile yarns 14 including the conductive fibers 14b, but also a sound absorbing effect by the through holes 30. As a result, it is possible to keep the inside of the vehicle and the passenger compartment quiet.

Next, the conductive pile yarns 14 (hereinafter, referred to as the conductive pile yarns 14) for constituting the antistatic rug 10 according to the present invention as described above.
This will be described in detail according to the embodiment shown in the drawings. The pile yarn 14 of the present invention is applied to rugs such as carpets and mats laid on the floor of vehicles such as automobiles, trains and aircraft, or rugs such as carpets and mats laid on the floor of houses.

This pile yarn contains conductive fibers.
The conductive fibers are not particularly limited, for example, carbon fibers, metal fibers, inorganic fibers such as conductive ceramic fibers,
Plated fiber with synthetic fiber as the main material, plated with metal such as copper, silver, or aluminum on the fiber surface, kneaded with metal such as copper, silver, or aluminum on the fiber surface, or conductive in the fiber component And fibers containing a resin.

The fiber diameter and the fiber length of the conductive fiber are not particularly limited. However, if the fiber diameter is too small, particularly if the fiber is an inorganic fiber, it may be broken at the time of yarn formation. And a fiber diameter having a strength that does not cause breakage during handling. Also, unless the fiber length is shorter than the fiber length of the constituent fibers of the pile yarn,
It can be any length.

As the fiber constituting the pile yarn, a fiber having a lower melting point than the conductive fiber is used. In addition, it is not always necessary to use all the constituent fibers using fibers having a melting point lower than the conductive fiber, and it is also possible to adopt a form in which some constituent fibers use fibers having a melting point lower than the conductive fiber. .

Specific examples of the constituent fibers include polyester fibers such as polyethylene terephthalate and polyethylene terebutylate, polyolefin fibers such as polyethylene and polypropylene, polyamide 6, polyamide 6.
6, such as polyamide fibers, synthetic fibers such as PVA fibers, natural fibers such as pulp fibers, semi-synthetic fibers such as rayon fibers, or fibers obtained by blending these fibers, or a high melting component and a low melting component, Sea-island type or side-by-side type composite fibers in which the low melting point component has a lower melting point than the conductive fibers can be given.

While bundling the above constituent fibers by a required amount,
The conductive fiber is contained in the fiber bundle and twisted to form a pile yarn, which is then heated at the same temperature as the melting point of the constituent fibers.

As a result, the constituent fibers are partially melted, and the conductive fibers protrude from the constituent fibers.
The conductive pile yarn of the present invention is obtained.

The conductive pile yarn 14 shown in FIG. 6 uses fibers having a lower melting point than the conductive fibers 14b for all the constituent fibers 14a, and the constituent fibers 14a and the conductive fibers 14b have substantially the same fiber length. The length is set to a shorter length or shorter, and is bundled by a required amount, twisted to form a yarn, and then heated at a temperature substantially equal to the melting point of the constituent fiber 14a.

As shown in FIG. 6, the conductive pile yarn 14
The component fiber 14a is partially melted, and the tip of the conductive fiber 14b protrudes from the component fiber 14a,
The periphery of the conductive pile yarn 14 is fluffed, and the tips of a large number of conductive fibers 14b protrude.

In the conductive pile yarn 14 shown in FIG. 6, since the periphery of the conductive pile yarn 14 is fluffed and the tips of a large number of conductive fibers 14b protrude. In addition, the conductive fibers 14b are easily brought into contact with the human body, and static electricity charged on the human body can be reliably guided to the carpet 1 side. Further, since the tips of the large number of conductive fibers 14b protrude in a fluff shape on the peripheral surface of the conductive pile yarn 14, the static electricity can be efficiently discharged in the air.

The conductive pile yarn 14 shown in FIG. 7 is twisted again with the conductive fiber 14b along the surface of the bundle (yarn) of the previously twisted constituent fibers 14a, and has a predetermined yarn length. After being cut, it is heated at the same temperature as the melting point of the constituent fibers 14a.

In the conductive pile yarn 14 shown in FIG. 7, the constituent fibers 14a are partially melted by heating, and the yarn 1
The tip of the conductive fiber 14b protrudes in an antenna shape from the first cut surface.

In the conductive pile yarn 14 shown in FIG. 7, the conductive fibers 14 are cut from the cut surface of the conductive pile yarn 14.
Since the end of b protrudes, the conductive fiber 14b easily comes into contact with the human body, and static electricity charged on the human body can be surely guided to the carpet side. In addition, since the tip of the conductive fiber 14b protrudes from the cut surface of the conductive pile yarn 14, static electricity can be efficiently discharged in the air.

Next, a specific application example of the conductive pile yarn configured as described above will be described.
Alternatively, as shown in FIG. 8, first, a discharge paper 103 having a function of discharging static electricity is laminated on a nonwoven fabric 102 to form a fiber base material 104.

On the other hand, polypropylene fibers (melting point 180
C)), a necessary amount of the constituent fibers is bundled and twisted to form a yarn. Twisting is performed again along the surface of this yarn with conductive fibers silver-plated on the surface of polyamide fiber (melting point 230 ° C),
The pile yarns 14 include conductive fibers.

The pile yarn 14 is driven into the fiber base material 104 in a loop shape so as to have a predetermined volume, and the loop is cut at a location indicated by a dotted line in FIG.

Next, a layer 105 made of SBR is provided on the back side of the fiber base material 104 into which the pile yarn 14 has been driven to prevent the pile yarn 14 from coming off.

After that, the fiber base material 104
° C. to partially melt the constituent fibers of the pile yarn 14, and cut the conductive fibers 1 from the cut surface of the pile yarn 14.
4b was made to protrude like an antenna.

Next, an open-cell type SBS foamed resin layer 106 containing a filler is formed on the lower surface of the layer 105 made of SBR.
Felt layer 107 containing thermal adhesive fiber, SBS resin layer 10
8, the urethane home 109 was provided in this order, and the static eliminating carpet 101 was obtained.

In the case of the conductive pile yarn 14, the only step required to make the conductive fibers 14b protrude from the yarn surface is a step of heating the fiber base material 104 at a temperature of 170 to 180 ° C.

Next, the antistatic rug 10 shown in FIG. 9 will be described. This antistatic rug 10 is a combination of the invention of claim 1 and the invention of claim 6, and is substantially the same as the antistatic rug 10 shown in FIG. An electric protection carpet 101 laid on a floor in a room is configured to absorb and remove static electricity charged on a human body.

In this antistatic rug 10, antibacterial deodorant fibers obtained by adhering to the fiber surface antibacterial deodorant particles obtained by coating the surface of photocatalytic particles such as titanium, cerium, zinc, and copper with a fluorine-based porous layer. Nonwoven fabric containing, or a nonwoven fabric 102 having antibacterial properties, such as a nonwoven fabric that is applied or sprayed with a binder with a conventionally known antibacterial agent and adhered to the surface of the constituent fibers, is used as a base fabric, and efficiently absorbs indoor odors, This is decomposed or adsorbed and removed.

A discharge paper 103 having a function of discharging static electricity is laminated on the nonwoven fabric 102, the above-mentioned metal foil 20 is laminated on the discharge paper 103 side, and a large number of low-weight felts are further laminated on the metal foil 20 side. Felt layer 200
Are laminated to form a fiber base material 12.

A pile yarn 14 containing conductive fibers 14b is driven into the fiber base 12 from the front side (nonwoven fabric 102) of the fiber base 12 so as to be substantially U-shaped.
The closed cell type foamed resin layer 201 made of SBS is formed on the back side (felt layer 200) side of No. 2.

Lastly, in the antistatic rug 10, a through hole 30 having a diameter of about 1.5 mm is formed in the antistatic rug 10.
A large number is left in a state of penetrating the front and back of 1.

In the case of the antistatic rug 10, the fiber base material 1
When the foamed resin layer 201 is provided on the back side of No. 2, the apparatus shown in FIGS. 10 and 11 is used.

The apparatus shown in FIG. 10 and FIG. 11 uses the foaming resin layer 201 shown in FIG.
3 and a recess 301 for forming a bump (not shown)
And an engraving roll 300 provided with a groove 302 and a needle 303 and a pressing roller 304.

The engraving roll 300 is connected to an ultrasonic wave generator (not shown).
00 acts as a horn. A cooling gas such as nitrogen is introduced into the engraving roll 300, so that the roll surface is instantaneously cooled.

The fiber substrate 104 and the foamed resin layer 20 are interposed between the engraving roll 300 and the pressing roller 304.
1, the fiber base material 104 and the foamed resin layer 201 are integrated by hot pressing by generating ultrasonic waves, and the foaming resin layer 201 is provided with a projection 2 for preventing slippage.
03 and irregularities (not shown) are formed.

At the same time, the needle 303 on the roll surface penetrates the fiber base material 104 and the foamed resin layer 201 to form a through hole 30 penetrating the front and back of the charge removing carpet 101.

Immediately after the hot press and the perforation, the roll surface is instantaneously cooled by the cooling gas introduced into the roll, and the deviation preventing projections 203, the projections and depressions (not shown), and the through holes 30 are formed. , Their shapes are fixed.

In addition, a needle is provided on the pressing die of the flat press machine in substantially the same manner as the above-described engraving roll 300, and an ultrasonic generator is connected to this pressing die so that the pressing die acts as a horn. At the same time, a cooling gas such as nitrogen may be introduced into the inside of the pressing die so that the surface of the die is instantaneously cooled.

In this case, similarly to the engraving roll 300 and the pressing roller 304 described above, the raw material, or the fibrous base material 104 and the foamed resin layer 201 cut into a predetermined shape are hot-pressed by ultrasonic waves to remove static electricity. A through hole 30 penetrating the front and back of the carpet 101 is formed, and then the hole shape can be fixed by cooling.

Note that the neutralizing carpet 1 shown in FIGS.
01, as described above, by forming a large number of through-holes 30 penetrating the front and back, lay this on a carpet having a felt layer or a non-woven fabric layer on the floor of the car and having excellent sound absorbing performance, When applied as a rug such as a mat, the noise from the outside such as wind noise is transmitted through the innumerable through holes 30 to the carpet on the automobile floor without being rebounded, and is absorbed and removed by the carpet. ing.

The scope of the present invention is defined in the claims, and all changes and forms included in the scope can be adopted.

[0081]

As described in detail above, in the antistatic rug 10 according to claims 1 to 5, the "fiber base material 12
An antistatic rug 10 in which a conductive pile yarn 14 is driven into a backing layer 15 and a backing layer 15 is integrated on the back surface.
The metal foil 20 into which the conductive pile yarn 14 is to be inserted is interposed between the backing layer 15 and the fiber base material 12, so that the conductive pile yarns 14 are electrically connected to each other. " There is a structural feature, whereby the antistatic rug 10 having excellent static elimination properties can be provided.

Further, as described in detail, claims 6 to 1
0, the “fiber base material 10
The antistatic rug 10 having the foamed resin layer 106 on the back side while driving the conductive pile yarn 14 around the center 4, and formed in the antistatic rug 10 a number of through holes 30 penetrating the front and back. The main feature of this is that the antistatic rug 10 having excellent static elimination properties and sound absorption properties can be provided.

In the conductive pile yarn 14 according to the present invention, fibers having a lower melting point than the conductive fibers are used as the constituent fibers constituting the pile yarn. By heating the pile yarn at a temperature about the same as the melting point of the constituent fibers, the constituent fibers were partially shrunk, and a part of the conductive fibers was projected from the constituent fibers. Is extremely easy and does not require much effort and effort.

Further, in the conductive pile yarn 14,
Since the conductive fibers protrude, the conductive fibers are easily brought into contact with the human body, static electricity charged on the human body can be reliably guided to the carpet side, and the static electricity can be efficiently discharged in the air.

[Brief description of the drawings]

FIG. 1 is an enlarged perspective view of a main part of an antistatic rug according to the present invention.

FIG. 2 is an enlarged perspective view of a main part of another embodiment of the antistatic rug.

FIG. 3 is a plan view showing an example of the metal foil shown in FIGS. 1 and 2 in the order of (a) to (c).

FIG. 4 is an enlarged sectional view of a main part showing another example of the antistatic rug according to the present invention.

FIG. 5 is an enlarged sectional view of a main part of the through hole.

FIG. 6 is an enlarged perspective view of a main part showing a conductive pile yarn according to the present invention.

FIG. 7 is an enlarged perspective view of a main part showing another example of the conductive pile yarn.

FIG. 8 is an enlarged sectional view of a main part of a static elimination carpet in which the conductive pile yarn is applied and a metal foil and a through hole are not formed.

FIG. 9 is an enlarged perspective view of a main part showing still another example of the antistatic rug according to the present invention.

FIG. 10 is a schematic view showing an apparatus for manufacturing an antistatic rug according to the present invention.

FIG. 11 is an enlarged view of a main part of the device.

FIG. 12 is a main part enlarged plan view showing a static elimination carpet using a conventional conductive pile yarn.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Antistatic rug 11 Electric proof carpet 12 Fiber base material 13 Discharge paper 14 Conductive pile thread 14a Constituent fiber 14b Conductive fiber 15 Backing layer 20 Metal foil 21 Frame part 22 Opening 23 Continuous part 30 Through hole 31 Sound absorbing hole 101 Electric proof carpet 106 foamable resin layer

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) D02G 3/38 D02G 3/38 4L033 D06C 27/00 D06C 27/00 A 4L036 D06M 11/83 D06M 15/564 15/564 15/693 15/693 11/00 A (72) Inventor Kohei Yamada 1682 Kitayo, Kasamatsu-cho, Hashima-gun, Gifu F-term (reference) 3B120 AC09 BA03 BA28 CA08 DB03 EA10 EB08 3B154 AA07 AA08 AA09 AA14 AA18 AB24 AB34 BA60 BB12 BF06 BF23 DA11 4F055 AA13 BA15 BA20 CA12 DA07 EA02 EA04 EA05 EA06 EA07 EA08 EA18 EA22 FA04 FA15 GA02 GA03 4F100 AB10 AB25 AB33C AD00 AD11 AK01 BA03 BA05 BA03 BA03 BA05 BA03 BA05 BA03 BA05 BA03 BA05 DG16A DG18A DJ01B EJ42 GB08 GB33 JA03A JA04A JG01A JG03 JH01 4L031 AA20 AB01 BA04 CB11 CB12 CB13 CB14 CB15 DA15 4L033 AA02 AA05 AA07 AA08 AA09 AB05 AC11 CA50 CA68 4L036 MA04 MA06 MA33 MA39 MA40 PA21 PA46 RA25 UA25

Claims (14)

[Claims] 1. An antistatic rug in which a conductive pile yarn is driven into a fiber base material and a backing layer is integrated on the back surface, wherein the conductive pile yarn is provided between the backing layer and the fiber base material. An antistatic rug, wherein the conductive pile yarns are electrically connected to each other with a metal foil to be driven interposed therebetween. 2. The conductive pile yarn includes conductive fibers, and a fiber having a lower melting point than the conductive fibers is used as a constituent fiber of the pile yarn.
By heating the pile yarn at a temperature substantially equal to the melting point of the constituent fibers, the constituent fibers are partially shrunk, and a part of the conductive fibers is projected from the constituent fibers. The antistatic rug according to claim 1, wherein 3. The composite fiber, wherein the conductive pile yarn is composed of a high melting point component and a low melting point component, and wherein the low melting point component has a melting point lower than that of the conductive fiber, as a constituent fiber,
By heating the pile yarn at the same temperature as the melting point of the low melting point component of the constituent fibers, the constituent fibers are partially contracted, and a part of the conductive fibers is projected from the constituent fibers. The antistatic rug according to claim 2, wherein: 4. The antistatic rug according to claim 2, wherein a fiber having a melting point lower than that of the conductive fiber is used as a part of the constituent fibers. 5. The antistatic rug according to claim 2, wherein the fiber length of the constituent fibers is equal to or shorter than the fiber length of the conductive fibers. 6. An antistatic rug having a foamed resin layer on the back side, into which conductive pile yarn is driven centering on a fiber base material, and a plurality of through holes penetrating the front and back surfaces of the rug. An antistatic rug characterized by being formed. 7. The conductive pile yarn includes a conductive fiber, and a fiber having a lower melting point than the conductive fiber is used as a constituent fiber of the pile yarn.
The pile yarn is heated at a temperature about the same as the melting point of the constituent fibers to partially shrink the constituent fibers, and a part of the conductive fibers is projected from the constituent fibers. The antistatic rug according to claim 6, wherein 8. A composite fiber in which the conductive pile yarn is composed of a high melting point component and a low melting point component, and wherein the low melting point component has a lower melting point than the conductive fiber, as a constituent fiber,
By heating the pile yarn at the same temperature as the melting point of the low melting point component of the constituent fibers, the constituent fibers are partially contracted, and a part of the conductive fibers is projected from the constituent fibers. The antistatic rug according to claim 7, characterized in that: 9. The antistatic rug according to claim 7, wherein a fiber having a lower melting point than the conductive fiber is used as a part of the constituent fibers. 10. The antistatic rug according to claim 7, wherein the fiber length of the constituent fibers is equal to or shorter than the fiber length of the conductive fibers. 11. A conductive pile yarn for an antistatic rug including a conductive fiber, wherein a fiber having a lower melting point than the conductive fiber is used as a constituent fiber constituting the pile yarn, and the pile yarn has the same structure as the conductive yarn. By heating at a temperature about the same as the melting point of the fibers, the constituent fibers are partially shrunk, and a part of the conductive fibers is protruded from the constituent fibers. Conductive pile yarn. 12. A high melting point component and a low melting point component,
By using a composite fiber having a low melting point component having a melting point lower than that of the conductive fiber as a constituent fiber, the pile yarn is heated at a temperature substantially equal to the melting point of the low melting point component of the constituent fiber. The conductive pile yarn for an antistatic rug according to claim 11, wherein the fibers are partially shrunk to protrude a part of the conductive fibers from the constituent fibers. 13. The fiber according to claim 1, wherein a fiber having a lower melting point than the conductive fiber is used as a part of the constituent fiber.
13. The conductive pile yarn for an antistatic rug according to 1 or 12. 14. The conductive pile yarn for an antistatic rug according to claim 11, wherein the fiber length of the constituent fibers is equal to or shorter than the fiber length of the conductive fibers.