JPH11235389A - Inner wear using electromagnetic wave blocking net - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide medical inner wear, inner wear for pregnant women, or inner wear for OA operations or clean-room operations, using an electromagnetic wave blocking net which resists soiling, is flexible and transparent enough to allow the inside to be seen through, has antibacterial properties, and prevents static electricity. SOLUTION: This shielding inner wear uses an electromagnetic wave blocking net 1, in which electrically conductive fibers are woven in the form of tricot with meshes having a roughness of 1.5 mm or less, with the roughness of the meshes held constant as the vertical and horizontal fibers of the meshes restrain their mutual movements, and the inner wear is worn immediately over underwear. Thus, using the electromagnetic wave blocking net, medical shielding inner wear preventing the malfunction of a pacemaker, inner wear for pregnant women, or inner wear for OA operation or clean-room operations is provided.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a medical innerwear for effectively cutting electromagnetic noise generated from a mobile phone, an engine, a motor, and the like, thereby preventing malfunction of a pacemaker and harmful electromagnetic waves and static electricity for a pregnant fetus. And innerwear for pregnant women.

[0002]

2. Description of the Related Art Recently, the danger that high-frequency electromagnetic waves generated from home appliances around the human body harm cells or the immune system of the human body has been regarded as a problem, and research has begun. It is said that there are hundreds of thousands of heart disease patients nationwide who use pacemakers. Recently, malfunctions of pacemakers have become a serious problem especially when mobile phones are used at close distances. In this regard, the Ministry of Health and Welfare has been instructing patients using pacemakers since April 1997 to keep their mobile phones at least 22 cm away.

[0003] However, since it is not immediately known whether a neighbor uses a pacemaker, there is always a danger that another person will use a mobile phone at a close distance. Also,
There is also a need for a patient who uses a pacemaker to use a mobile phone, but in reality, the patient cannot use the device because of the risk of the malfunction. In addition to a mobile phone, high-frequency noise generated from an engine, a motor, or the like may cause a malfunction of the pacemaker, and there are many devices, such as a portable lawn mower, whose use is restricted. Conventionally, there has been no means for effectively preventing the malfunction of the pacemaker due to such high-frequency noise.

[0004] In addition, since the fetus during pregnancy is growing rapidly and is in a weak state susceptible to harmful electromagnetic waves and static electricity at the genetic level, it is desirable to block the above-mentioned external electromagnetic waves. It is also said that when the human body is charged, static electricity lowers the blood sugar level of blood in the body or causes the outflow of calcium in the body, resulting in fatigue, emotional anxiety, and the like. In any case, such static electrification fatigue and electrostatic shock are not preferable for pregnant women, and it is desirable that static electricity is minimized in consideration of the influence on the fetus. However, there has been no clothing that can be easily worn, is inexpensive, light, effectively blocks electromagnetic waves, and also prevents static electricity.

Conventional products for preventing such harmful electromagnetic waves include an OA apron made of a polyester-coated fabric, a metal fiber fabric, a transparent hard plastic VDT (Video Display).
y Terminal) filters and the like are sold.
However, metal fiber fabrics are generally expensive, lack transparency, and are often thick. Hard plastic items cannot be used for clothing. As the electromagnetic wave shield wear of the human body, the area to block the electromagnetic wave is widened. Therefore, if the metal fiber fabric is used, the cost required to block the electromagnetic wave increases. Further, there is a defect that the cloth is easily stained and the stain is conspicuous. In order to solve the cost problem, it is conceivable to reduce the amount of metal fibers by coarsely weaving the fabric in a mesh shape, but when the weave is coarse, the metal fibers move vertically and horizontally, so that it is easy to cause misalignment. . Therefore, the conventional mesh has a drawback that it cannot maintain the roughness of 1.5 mm, which is experimentally found to have a sufficient effect of blocking electromagnetic waves.

For example, Japanese Unexamined Patent Publication No. Hei 9-310208 discloses a garment for preventing malfunction of the implantable pacemaker. However, as apparent from the description, the publication uses a plain fabric coated with nickel, copper or the like, or a fabric coated with a conductive material on fibers, and is a thick expensive fabric, that is, I am conscious of outerwear. Although some meshes are used, they are used only as meshes to cover the face.

[0007] Electromagnetic wave prevention aprons for OA work are also commercially available, and the following research presentations have been made on electromagnetic wave prevention aprons. In other words, according to Osamu Hashimoto of Aoyama Gakuin University, the electromagnetic shielding apron can cause a resonance phenomenon depending on the distance to the body and have a great effect on the body. (The distance was 7 cm in the simulation experiment.) That is, if a thick sweater is worn under the apron or the apron is worn without being tight, the effect on the body may be increased.

[0008]

SUMMARY OF THE INVENTION The present invention has been made in order to solve such problems, and the conductive fiber is formed into a mesh having a stitch roughness of 1.5 mm or less. When knitting is possible, it is possible to knit with a general knitting machine such as a tricot knitting machine, and the amount of fibers used is small, and therefore, when the area for shielding electromagnetic waves is large, such as in shield clothing for clothes. However, the cost is low, and the vertical and horizontal stitches of the stitches constrain the movement of each other, so that the coarseness of the stitches is kept constant.
Inexpensive and durable medical shield wear, maternity shield wear, or OA work, which uses an electromagnetic wave shielding net that has a large absorption capacity and high electromagnetic wave shielding effect and can be used as innerwear in close contact with the body, An object of the present invention is to provide electromagnetic wave prevention and antistatic wear for a clean room.

In addition, the present invention uses an electromagnetic wave shielding net in which conductive fibers are twisted and knitted in a mesh shape, so that dirt is hardly adhered and dirt is hardly conspicuous and flexible. An object of the present invention is to provide the above-mentioned shield wear which is suitable as inner wear using an electromagnetic wave shielding net which is transparent, has a visible content, has antibacterial properties and prevents static electricity.

[0010]

The medical in-earwear according to the present invention is characterized in that the conductive fiber is knitted into a mesh having a stitch roughness of 1.5 mm or less by tricot knitting, and the fibers are arranged vertically and horizontally. Consists of an electromagnetic shielding net that keeps the eye roughness constant by constraining each other's movement, and the patient using a cardiac pacemaker wears it close to the body and causes the pacemaker to malfunction due to high frequency noise It is characterized in that it is possible to prevent

In the innerwear for pregnant women according to the present invention, the conductive fibers are knitted in a tricot knit into a mesh having a stitch roughness of 1.5 mm or less, and the vertical and horizontal fibers of the stitches move with each other. Consisting of an electromagnetic wave shielding net that keeps the eye roughness constant by constraining, it prevents harmful electromagnetic waves and static electricity to the fetus inside the body when worn by pregnant women who adhere to the body It is assumed that.

Further, in the innerwear for OA workers of the present invention, the conductive fibers are knitted in a tricot knit into a mesh having a stitch roughness of 1.5 mm or less, and the vertical and horizontal fibers of the stitches are mutually joined. Consists of an electromagnetic wave shielding net that keeps the roughness of the eyes constant by restricting movement, and prevents harmful electromagnetic waves and static electricity generated from electronic devices etc. when worn by workers. It is.

[0013] Further, in the clothing for clean room work according to the present invention, the conductive fibers are knitted in a tricot knit into a mesh having a stitch roughness of 1.5 mm or less, and the vertical and horizontal fibers of the stitches move together. It is composed of an electromagnetic wave shielding net whose eye roughness is kept constant by being restrained, and is characterized by preventing static electricity when worn by an operator.

Further, the above-mentioned innerwear or clothing is characterized in that the conductive fiber is knitted using a twisted yarn of two or more silver-plated single fibers. Things.

The electromagnetic wave shielding net can be knitted by a general knitting machine such as a tricot knitting machine, the amount of fibers used is small, and even if the area for shielding electromagnetic waves is large as in the case of the innerwear, the cost is reduced. Is low.
Further, since the vertical and horizontal fibers of the stitch restrain the movement of each other, the coarseness of the mesh is kept constant, so that the shape is not lost and washing is possible. Furthermore, the amount of reflection and absorption of electromagnetic waves increases due to the conductivity of the fibers entangled at the intersection of the stitches, and the effect of blocking electromagnetic waves is high.

In addition, there is an action of discharging static electricity naturally charged to the body, and it is possible to prevent various effects on the body due to the charging. In addition, since the above-mentioned fiber uses a silver-plated single fiber, it has a high `` antibacterial property '', and when used in close contact with the body as innerwear, kills various bacteria,
Since the cleanliness is maintained, it is particularly suitable to be worn by sick people, pregnant women, and the like. In addition, since the conductive fiber is knitted by using a twisted yarn on two or more silver-plated single fibers, the yarn becomes coil-shaped and the surface area increases. As a result, the amount of reflection and absorption of electromagnetic waves increases, and the effect of blocking electromagnetic waves is high.

[0017]

FIG. 8 shows an electromagnetic wave shield according to the present invention.
It is an enlarged view of the electromagnetic wave blocking net used for innerwear. This electromagnetic wave shielding net 1 is made of metal fibers (silver,
Copper, nickel, etc.), conductive fibers such as carbon fibers, etc., which are micron-order, and should be used as electromagnetic wave shielding materials.
Using a twisted yarn having conductivity obtained by twisting a synthetic fiber yarn such as polyester to be a base material, or a twisted yarn obtained by twisting two or more silver-plated single fibers, for example, a tricot knitting machine The knitted stitch has a roughness of 1.5 mm or less, which has been experimentally found to provide a sufficient electromagnetic wave shielding effect. When a net is made by tricot knitting, a net in which one square is hexagonal as shown in FIG. In the net, the vertical and horizontal stitches of the stitch restrain the movement of each other, so that the coarseness of the mesh is kept constant, and the net does not collapse. In an extreme case, the shape of the net is maintained as it is even if it is partially cut, and it is not loosened. For example,
In the case of the knitting shown in FIG. 9, as is clear from the figure, when one portion is cut, the vicinity of the knitting starts to loosen immediately, and the collapse easily occurs.

Further, since the net can be made by a general tricot knitting machine, the manufacturing cost of the net is very low. Further, since the net is such that the other side can be seen through, the amount of expensive metal fiber yarn used is much smaller than that of cloth-like one. That is, the above-mentioned net has an excellent feature that it can be made very inexpensively as an electromagnetic wave shielding material as compared with a conventional electromagnetic wave shielding material (such as cloth) in terms of both the manufacturing cost and the amount of material used.

FIGS. 10 and 11 show the measurement results of the electromagnetic wave blocking ratio of the electromagnetic wave blocking net. The measurement was performed by placing a transmitting / receiving antenna on both sides via a net under the conditions shown in Table 1 and measuring the transmission attenuation rate.

[0020]

[Table 1]

The above-mentioned electromagnetic wave shielding net has a low frequency band (5
0-1.4 GHz), the electromagnetic wave is attenuated by about 97%,
In a high frequency band (from 7 GHz), attenuation is about 90%. By wearing the electromagnetic wave shield innerwear of the present invention, the effect of electromagnetic waves generated from a mobile phone or other external electronic devices on the body can be reduced, so that malfunction of the pacemaker and adverse effects of the electromagnetic waves on the body can be prevented. .

A second advantage of the net is that it has conductivity (surface electrical resistivity of 0.05 ohm / sq. Or less), and thus has an action of releasing static electricity (antistatic effect). This antistatic effect can prevent charging fatigue and electrostatic shock.

In a clean room or the like of a semiconductor manufacturing apparatus, dust is highly disliked. However, the largest factor of dust contamination into the clean room is the worker who enters the room, and especially, the clothes of the worker are difficult to wear. Dust adhered by the electrification could not be completely removed by an air shower, and often adhered to semiconductor wear fur or the like, thereby lowering the yield. The clothing for a clean room of the present invention has an antistatic effect and is therefore suitable as clothing or a hat used in a clean room.

This antistatic effect has a good effect even when used as OA wear. That is, it is known that in a computer, a memory is vulnerable to static electricity, and the contents of the memory may be destroyed by the static electricity, or in extreme cases, the memory itself may be destroyed. If static electricity enters computer memory from human hands, it is easy to imagine that the contents of the memory change and cause bugs. When the OA wear of the present invention is worn, static electricity charged on the body can be easily released to the ground, so that a malfunction in which static electricity enters a memory or the like via a person can be prevented. In addition, adsorption of dust and cigarette smoke due to charging is prevented, so that the function of the device is prevented from deteriorating due to dust and the trouble of cleaning can be saved.

A third advantage of the above-mentioned net is that the net is made of a "twisted yarn obtained by twisting a silver-plated single fiber".
(Silver alloy is coated on polyester fiber). It is well known that metals have bactericidal activity. Therefore, if the surface of the net is, for example, silver-plated, it is always kept clean by the sterilizing effect of silver. In addition, when a silver-plated twisted yarn is used, the net itself is not easily discolored or deteriorated because silver is hardly rusted.
This has a notable side effect, especially when used for medical or pregnant women.

A fourth advantage of the net is that the net is flexible, can be processed into a desired shape, and can be cut into a desired shape as a material for making innerwear. At the same time it is light and transparent, and because of the net there is breathability,
The innerwear of the present invention has no heat inside even when worn in summer. In addition, since the air permeability is good, even when worn as an innerwear on ordinary underwear, it is comfortable without sweating. Also, being light reduces the burden of wearing, and can be worn comfortably. Moreover,
Since the cost is easy, it can be used easily. Conventional thick cloth-shaped shield materials are heavy, expensive and burdensome to wear, and are not suitable for being worn just above underwear. There is also a characteristic that the fitting property is good because of the flexibility. As described above, if there is a gap in the space with the skin, the adverse effect of the electromagnetic wave may increase due to the resonance phenomenon, but the innerwear of the present invention is in a state in which the innerwear is in close contact with the skin as described above. Since it is worn, the above-mentioned problems do not occur. INDUSTRIAL APPLICABILITY The innerwear of the present invention can be easily attached and detached, and can be easily attached and detached. In addition, since it has elasticity, it can respond to various body sizes in one size. Also, since it is a tricot knit, it is not easily frayed, and the stitch does not collapse even when pulled, so it is durable as clothing.

The electromagnetic wave shielding net and the electromagnetic wave shielding material of the present invention as described above have the function of the electromagnetic wave shielding net 2 having a coarseness of 1.5 mm or less reflecting or absorbing electromagnetic waves to convert them into thermal energy. It blocks microwaves of 200 MHz or more by 90% or more. However, with a roughness of 1.5 mm or more, the shielding effect decreases in proportion to the size of the eyes.

FIG. 1 shows an example of the medical innerwear (vest), and FIG. 2 shows how the vest is worn. FIG. 3 shows an example of the innerwear (maternity wear) for the pregnant woman, and FIG. 4 shows an example of the innerwear for an OA worker in an office or a clean room.

In FIG. 2, the opening 2 has been subjected to a piping process using a stretchable material. Although not shown, the actual vest 1 is designed with a shoulder pad as a lining so that the net does not come in direct contact with the skin. Further, the shoulder pad portion has a structure in which the net is doubled and tailored into a triple structure. This is usually because a pacemaker is often embedded in the shoulder (near the lower part of the scapula), and as described above, the net is doubled to enhance the shielding of this portion.

The above-mentioned inner wear for preventing the malfunction of the pacemaker is an ultra-light shield which has a high antibacterial and deodorizing effect by blocking high-frequency electromagnetic waves, preventing electrostatic shock due to an antistatic effect and preventing charging fatigue. Material. It also has excellent thermal conductivity and breathability, and is cool in summer and warm in winter. Furthermore, it also has excellent washing durability, which maintains 90% or more functions even after washing 100 times or more.

The innerwear for pregnant women in FIG. 3 and the OA in FIG.
Workwear and cleanroom wear are also ultra-lightweight shield materials that block high-frequency electromagnetic waves and have antistatic, antibacterial, and deodorant effects. It also has excellent thermal conductivity, air permeability, and excellent washing durability. These innerwears are also used with a shoulder pad like the vest.

FIGS. 5 to 7 show the results of experiments when the above-mentioned medical innerwear (vest) was worn on a patient having a pacemaker and a mobile phone was used at a close distance of 2 to 3 cm from the patient's body. ing. The experiment was performed on three patients using a pacemaker at Ayabe City Hospital in Kyoto City. As a result, the pacemaker malfunctioned when the medical innerwear (commonly referred to as MG shield vest) was not used. In FIGS. 5 to 7, a mark 7 marked as a dot on each waveform indicates the time of the pulse generation for the pacemaker operation, and this point is indicated at 5 in FIG. 5 or at 6 in FIG. 6. 7 is shorter than normal interval,
It can be seen that pacing is accelerated. In the figure, pacing has been recovered normally, but in the worst case, this rapid pacing may not be recovered, which is extremely dangerous for the patient. On the other hand, in the case of FIG. 7 wearing the above-mentioned MG shield vest, the pacing did not advance, and it can be seen that the malfunction of the pacemaker by the mobile phone did not occur.

Table 2 summarizes the innerwear of the present invention and other shield products. In the table, "(a) O
"A guard" is the electromagnetic wave shield innerwear of the present invention, and (b) to (e) are conventional products. From this table,
It can be clearly seen that "OA guard" is excellent in most items.

[0034]

[Table 2]

Table 3 shows a comparison table of the characteristics of the electromagnetic wave shielding material used for the various shields and clothings of Table 2 and the electromagnetic wave shielding net (MG net) used in the present invention. . Table 3 also shows how excellent the characteristics of the electromagnetic wave shielding net (MG net) are.

[0036]

[Table 3]

[0037]

As described above, the electromagnetic wave shield innerwear of the present invention blocks electromagnetic waves such as radio waves harmful to the human body and microwaves (ultra-high frequency waves) generated from mobile phones, personal computers and various power supplies, And effectively prevent static electricity. Moreover, since the conductive fibers are knitted in a mesh shape as a material for shielding electromagnetic waves, it is possible to knit with a general knitting machine such as a tricot knitting machine, the amount of fibers used is small, and electromagnetic waves are reduced. There is a feature that the cost is low even when the blocking area is large. In addition, the electromagnetic wave shielding net maintains a constant coarseness of the stitches by restraining the vertical and horizontal fibers of the stitches from moving with each other, is resistant to fraying, is resistant to pulling, and furthermore, the fibers entangled at the intersection of the stitches. Due to the conductivity, the amount of reflection and absorption of the electromagnetic wave is increased, and an excellent effect that the effect of blocking the electromagnetic wave is high is exhibited. Further, the innerwear has flexibility, and also has an antistatic effect and an antibacterial effect. Therefore, it is an inexpensive shield wear which is excellent in fitting property, does not easily adhere to dust, and can be easily worn.

Also, the innerwear for OA work and the innerwear for clean room work of the present invention are light and transparent because the above-mentioned electromagnetic wave shielding net is used.
It is inexpensive, has an antistatic effect and an antibacterial effect, is highly flexible, and is resistant to contamination. In particular, when used as shield wear for medical or pregnant women, which is susceptible to external electromagnetic waves in hospitals and the like, and in which malfunctions have serious consequences, excellent effects are exhibited.

In addition, since the inner wear is worn on the underwear, a blouse or the like can be worn thereon, and the appearance is not conscious of shield clothing, and it is light and has good ventilation, so it can be easily worn in summer or winter. It is shield wear that can be done.

[Brief description of the drawings]

FIG. 1 shows an example of medical innerwear (vest) of the present invention.

FIG. 2 is a view when the medical innerwear (vest) of the present invention is worn.

FIG. 3 is a view when the innerwear (maternity wear) for pregnant women of the present invention is worn.

FIG. 4 is a diagram when the inner wear for the office automation worker or the clean room of the office of the present invention is worn.

FIG. 5 shows an experimental result when a mobile phone is used at a close distance without wearing the medical innerwear (vest) of the present invention.

FIG. 6 shows an experimental result when a mobile phone is used at a close distance without wearing the medical innerwear (vest) of the present invention.

FIG. 7 shows an experimental result when a mobile phone is used at a close distance while wearing the medical innerwear (vest) of the present invention.

FIG. 8 is an enlarged view of an electromagnetic wave shielding net used for the innerwear of the present invention.

FIG. 9 is an enlarged view of the knitting.

FIG. 10 shows a measurement result of an electromagnetic wave blocking rate of the electromagnetic wave blocking net used in the present invention.

FIG. 11 shows a measurement result of an electromagnetic wave blocking rate of the electromagnetic wave blocking net used in the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Electromagnetic wave shielding net 2 Opening 3 Shield innerwear for pregnant women 4 Shield innerwear for OA work or clean room 5, 6 Fast pacing location 7 Pacing pulse

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁶ Identification code FI H05K 9/00 H05K 9/00 W // A41D 31/00 501 A41D 31/00 501N 503 503P 31/02 31/02 K

Claims (5)

[Claims] 1. A fiber having conductivity is knitted by tricot knitting into a mesh having a stitch roughness of 1.5 mm or less,
Pitchmaker malfunctions due to high frequency noise when worn by patients using cardiac pacemakers, consisting of an electromagnetic shielding net in which the vertical and horizontal stitches of the stitches constrain the movement of each other to maintain a constant eye roughness. Medical innerwear characterized by preventing 2. The conductive fiber is knitted in a tricot knit into a mesh having a stitch roughness of 1.5 mm or less,
The stitches are made of an electromagnetic wave shielding net that keeps the roughness of the eyes constant by restraining each other's movement, and when worn by pregnant women during pregnancy, harmful electromagnetic waves and static electricity to the fetus inside the body are eliminated. Prevent innerwear for pregnant women. 3. The conductive fiber is knitted into a mesh having a stitch roughness of 1.5 mm or less by tricot knitting.
The stitches are made up of an electromagnetic wave shielding net that keeps the roughness of the eyes constant by restraining each other's vertical and horizontal fibers from moving, and removes harmful electromagnetic waves and static electricity generated from electronic devices etc. when worn by workers. OA work innerwear characterized by preventing. 4. The conductive fiber is knitted in a tricot knit into a mesh having a stitch roughness of 1.5 mm or less,
For clean room work, which consists of an electromagnetic wave shielding net in which the vertical and horizontal stitches of the stitches constrain each other's movement to keep the coarseness of the eyes constant, and prevents static electricity when worn by workers. Inner wear. 5. The fiber according to claim 1, wherein the conductive fiber is formed by knitting two or more silver-plated single fibers with a twisted yarn. An innerwear according to any one of the preceding claims.