JPH0268898A - Seat mat for removing static electricity - Google Patents

Abstract

PURPOSE:To enable the easy removal of static electricity only by laying on a seat by forming the surface layer or the whole of the seat mat of a conductive layer having a volume inherent resistivity less than 10<6>OMEGA.cm and providing a lead wire in the conductive layer. CONSTITUTION:The surface layer or whole of a seat mat for automobile is formed of a conductive layer 1 having a volume inherent resistivity less than 10<6>OMEGA.cm and the conductive layer 1 is provided with a lead wire 3. As the conductive layer of the volume inherent resistivity less than 10<6>OMEGA.cm, for example, a metallized fiber fabric and metal plated fiber fabric in which a metal such as nickel is deposited in a synthetic fiber such as polyester, and a fiber threaded with metal fiber and carbon fiber can be used. Hence, the generation of static electricity can be made difficult, and the static electricity charged in a human body can be earthed and removed rapidly and certainly.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a seat mat suitable for removing static electricity from the body of a person riding in an automobile.

[Conventional technology] After getting into a car on a dry day in the winter, when you put your hand on the door handle or lock the door, the static electricity that builds up on your body during the ride can cause sparks to fly around, causing discomfort. I often do it.

The reason for this is that large amounts of highly insulating synthetic fibers and synthetic resins have been used in place of natural materials for human clothing and automobile interior materials, making it easier for static electricity to be generated inside automobiles. Can be mentioned.

Static electricity generated while sitting in a seat is caused by friction between the seat and clothing, especially when the clothes on the passenger's buttocks and back rub against the surface material of the seat when trying to get out of the car. Static electricity can sometimes occur.

On the other hand, various types of car seat covers and cushions have been commercially available, but all of them are designed to improve aesthetics, seating comfort, and prevent seats from getting dirty. There wasn't.

[Problem to be solved by the invention] Under these circumstances, the heavy use of synthetic resin in the interior of automobiles is unavoidable from the viewpoint of weight reduction and cost, and it is difficult to avoid modifications to the seats of commercially available automobiles. There is a lot of loss and it is not realistic. Furthermore, it is extremely troublesome to change clothes every time you drive a car.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a seat mat for eliminating static electricity that can easily eliminate static electricity simply by placing it on a seat.

[Means for Solving the Problems] In the present invention, the surface layer or the entire surface layer of an automobile seat mat is composed of a conductive layer having a volume specific resistivity of 106 Ω·cm or less, and the conductive layer is provided with a lead wire. The above tasks have been achieved by this.

Further, on the conductive layer, with respect to 100 parts by weight of vinyl chloride resin, (wherein R is a linear or branched alkyl having 3 to 15 carbon atoms, A is an alkylene having 2 to 4 carbon atoms, n, m is
A conductive plasticizer represented by an integer of 1 to 7, and the number of carbon atoms in A+R is 5 to 7) is blended to increase the specific volume resistivity to 106 to I.
It is more preferable in terms of aesthetics, durability, etc. if a second conductive layer with a resistance of 09 Ω·cm is attached.

[Function] The static electricity removing seat mat according to the present invention is composed of a conductive layer having a volume specific resistivity of 106 Ω·cm or less on the surface layer or the whole. By connecting the wire to the wire, static electricity generated by friction between clothing and the seat mat is quickly removed from the wire, and there is almost no possibility that the passenger will be charged.

In addition, the human body (
Any purified electricity generated between the body and the human body (clothes) is quickly removed from the front of the human body to the ground via the seat mat and lead wire.

Here, the volume resistivity of the conductive layer in the present invention is 10
The reason why it is set to be less than 6 Ω·CII+ is because if it is more than 10 7 Ω·cm, the efficiency of collecting static electricity from the entire surface of the conductive layer to the thin lead wire becomes poor. Volume resistivity is 106Ω・CII
For conductive layers below +, for example, metallized fiber fabrics or metal-plated fiber fabrics made by depositing metals such as nickel on synthetic fibers such as polyester, IA fibers woven with metal fibers or carbon fibers, rubber or synthetic resins, etc. A sheet containing a large amount of conductive carbon black can be used.

Moreover, if a second conductive layer is attached on this conductive layer, the specific conductive plasticizer mentioned above is blended with vinyl chloride resin, and the specific volume resistivity is set to 6 to 109 Ω·cm. The surface of the seat mat can be colored in any color of your choice, and can also be embossed with leather grains, etc., making it possible to remove static electricity without damaging the aesthetics of the interior of the car.

Furthermore, since the second and fourth electrical layers are made of vinyl chloride resin, even if the surface gets dirty, it can be easily wiped off with a damp cloth or the like. In addition, it is possible to prevent the metal of the metallized fiber fabric of the conductive layer from falling off due to friction and reducing the conductivity.

In addition, unlike a layer in which only the surface of the vinyl chloride resin is made conductive using a surfactant-based antistatic agent, the second conductive layer has a volume specific resistivity of 10' to 109 Ω·cm as a whole.
Since the second conductive layer has a conductivity of , the generated static electricity is quickly transferred to the conductive layer having a lower specific volume resistivity via the second conductive layer.

The static electricity removal mat according to the present invention may be in the form of a single-layer conductive layer, or a sheet with a two-layer structure of a conductive layer and a second conductive layer, or the sheet may be shaped into a bag with a cushion inside. It is also possible to fill it with material and make only the surface layer conductive.

[Example] Example 1 FIG. 1 is a perspective view showing an embodiment of the present invention.

Vinyl chloride resin IQ (for lfiffi part, DOP
80 parts by weight, 30 parts by weight of Ketchen Black, 2 parts by weight of dibutyltin simalate as a stabilizer, 3 parts by weight of gelation accelerator (product name: Hyblen 402 [1, manufactured by Nippon Zeon ■), and 3 parts by weight of evogylated soybean oil. With heat roll/
I! i4E and pressed with a hot press at 160°C to produce a sheet of 3 mm x 300 mm x 300 m as the conductive layer 1. As a result of measuring the conductivity of this conductive material N1, the volume resistivity was 500 Ω·cm.

Then, a lead wire 3 made of a copper wire with a wire diameter of 1 mm was connected to a part of the conductive layer, and the other G1"1.1 was connected to the body of a passenger car. A static electricity removal mat was placed on the driver's seat, and the After operating the automatic JLJ for 30 minutes in an environment with a leap rate of 50%, the static electricity charge on the driver's hand was measured using Kasuga Denkiran's digital potential measuring instrument S[)-6110. As a result, the charging voltage was V drops.

Comparative Example 1 Using the automatic IJi used in Example 1, the vehicle was driven twice for 30 minutes each for 30 minutes without the static electricity eliminating seat mat prepared in Example 1, and the electrostatic voltage on the driver's hand was measured. The test results showed high values of 1200V for the first time and 1500V for the second time.

Embodiment 2 FIG. 2 is a cross-sectional J-I view showing another embodiment of the present invention.

Conductive plasticizer (
Manufactured by New Japan Chemical 010 Product name Sansocisor Cl100
), 20 parts by weight of ground calcium carbonate, and a kelization accelerator (manufactured by Nippon Zeon, trade name) ＼Ibusin 402
B) 5 parts by weight, 2 parts by weight of dibutyltin dilaurate,
Liquid lubricant (product name mark LS-5 manufactured by Adeka Argus Oki)
) 21 parts and 1 part by weight of pigment was plasticized in a Banbury mixer, and then a sheet with a thickness of 0.35 mm was formed into a second conductive layer 2 using four inverted calendar rolls.
It was created as

At the same time, a metallized fiber fabric (volume specific resistivity of 0.5 Ωcm) was prepared by depositing nickel metal on a polyester fabric as the conductive layer 1, and this was heated to the vinyl chloride sheet of the second conductive layer 2. It cost ¥1.

After embossing the surface of the second conductive layer 2, a two-layer structure (conductive layer 1, second conductive layer 2) of hinyl chloride sheet 1-
When the specific volume resistivity was measured, it was IO2Ω·cm.

Using this conductive vinyl chloride sheet, 20mm inside
On the 1st floor, a cushion material 4 made of urethane foam was inserted to make a 35 (Lnm x 350mm) cushion material.In addition, a 1mm diameter copper wire was connected to a part of the metal-synthetic fiber cloth of the conductive layer 1 to create a lead wire. 3, and a seat mat as shown in FIG. 2 was obtained.

Use this static electricity eliminating seat mat for the pick-up and transfer seats of automobiles.
Lay it on the seat, connect the other end of the lead wire 3 to the car body, and connect the driver's hand (17 voltage) every 30 minutes for 2 hours while driving the car as in Example 1. As a result, all charging voltages were V.

[Effect of the invention] The static electricity removing seat mat according to the present invention has a surface R;
Or, since it is composed of a conductive layer with a total volume resistivity of 10'Ωcm or less, simply place such a seat mat on the seat and connect the lead wires provided on the conductive layer to the vehicle body. It is possible to make it difficult to generate static electricity, and also to quickly and reliably ground static electricity charged on the human body. This makes it possible to avoid unpleasant feelings caused by sparks between the metal part and the user's hand when the user gets out of the car and locks the car.

In addition, by adhering on the conductive layer a first conductive layer made by blending a specific conductive plasticizer with vinyl chloride resin and having a volume resistivity of 10 6 to 10 9 Ω·cm, the excellent static electricity removal performance can be reduced. The aesthetic appearance and durability of the seat mat can be improved.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing an embodiment of the invention, and FIG. 2 is a sectional perspective view showing another embodiment of the invention. [Explanation of symbols of main parts] 1... Conductive layer 2... Second conductive layer 3... Lead wire 4... Cushion material

Claims (2)

[Claims] (1) The volume resistivity of the surface layer or the whole is 10^6Ω
- A seat mat for eliminating static electricity, which is composed of a conductive layer with a thickness of cm or less, and is equipped with a lead wire on the conductive layer. (2) On the conductive layer, a conductive plasticizer represented by the following general formula is mixed with 100 parts by weight of vinyl chloride resin, and the specific volume resistivity is adjusted to 10^6 to 10^9 Ωcm.
Claim 1 characterized in that a second conductive layer is attached.
Seat mat for eliminating static electricity. General formula ▲ Numerical formula, chemical formula, table, etc. ▼ (However, in the formula, R is a straight chain or branched alkyl having 3 to 15 carbon atoms, A is alkylene having 2 to 4 carbon atoms, and n and m are integers of 1 to 7. , A+R has 5 to 7 carbon atoms)