WO2009081944A1 - Matériau en feuille, matériau en feuille pour blindage électromagnétique, papier peint et bande de blindage électromagnétique pour fil électrique - Google Patents

Matériau en feuille, matériau en feuille pour blindage électromagnétique, papier peint et bande de blindage électromagnétique pour fil électrique Download PDF

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Publication number
WO2009081944A1
WO2009081944A1 PCT/JP2008/073460 JP2008073460W WO2009081944A1 WO 2009081944 A1 WO2009081944 A1 WO 2009081944A1 JP 2008073460 W JP2008073460 W JP 2008073460W WO 2009081944 A1 WO2009081944 A1 WO 2009081944A1
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WO
WIPO (PCT)
Prior art keywords
sheet material
fiber
base fabric
electromagnetic wave
fibers
Prior art date
Application number
PCT/JP2008/073460
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English (en)
Japanese (ja)
Inventor
Takashi Ishida
Koutaro Matsumoto
Original Assignee
Nippon Oil Corporation
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nippon Oil Corporation filed Critical Nippon Oil Corporation
Publication of WO2009081944A1 publication Critical patent/WO2009081944A1/fr

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    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/02—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of forming fleeces or layers, e.g. reorientation of yarns or filaments
    • D04H3/04—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of forming fleeces or layers, e.g. reorientation of yarns or filaments in rectilinear paths, e.g. crossing at right angles
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K9/00—Screening of apparatus or components against electric or magnetic fields
    • H05K9/0001—Rooms or chambers
    • H05K9/0003—Shielded walls, floors, ceilings, e.g. wallpaper, wall panel, electro-conductive plaster, concrete, cement, mortar

Definitions

  • the present invention relates to a sheet material, an electromagnetic shielding sheet material, wallpaper, and an electromagnetic wave shielding tape for electric wires, and more particularly, to a configuration of a base fabric of a plated sheet material.
  • electromagnetic wave shielding is a well-known problem in many technical fields.
  • small electronic communication devices represented by mobile phones tend to emit more electromagnetic waves than ever for higher functionality, and it is important to suppress the impact on internal electronic components.
  • many facilities are digitized in factories and the like, and countermeasures against noise or malfunction due to electromagnetic waves emitted from digitized devices and power lines in the factories are required.
  • Many electrical components are also used in the field of automobiles, and electromagnetic shielding is becoming important.
  • the need for electromagnetic wave shielding is increasing in homes, hospitals and the like due to recent health consciousness, consideration for pacemaker users, patients with electromagnetic hypersensitivity, and the like.
  • a sheet material obtained by plating a base material made of metal fiber, nonwoven fabric or the like is often used (for example, Japanese Patent Application Laid-Open Nos. 2004-091877, 2004-276443, and See 2000-124660 and JP-A 2004-327687.
  • the electromagnetic wave shielding characteristics greatly depend on the amount of metal attached to the substrate by the plating process, and the electromagnetic shielding characteristics are improved as the amount of attached metal increases.
  • the fibers are thick and rigid, resulting in a thick material.
  • a material plated with a nonwoven fabric as a base material is used.
  • the polymer fibers constituting a general spunbonded nonwoven fabric have a limited surface area from the lower limit of the diameter.
  • electroless plating is used for plating the electromagnetic shielding sheet material.
  • the metal is formed in the part in contact with the plating solution of the object to be plated, so the surface area of the fiber is small.
  • the amount of metal attached decreases accordingly. Therefore, even if the thickness of the base material is increased in order to increase the amount of adhesion, there is a limit to the permeability of the plating solution, so the plating solution does not penetrate sufficiently deep into the base material, and the basis weight (per unit area) The weight of the substrate) and the thickness of the substrate are unnecessarily increased.
  • the electromagnetic wave shield is strongly required to be lightweight and thin depending on the application.
  • the degree of integration of parts has already reached the limit, and further slimming and weight reduction are required, and the weight and thickness of the base material that does not contribute to the electromagnetic shielding function will increase. It must be avoided as much as possible.
  • the thinner the substrate is, the more preferable for reducing the weight of the automobile.
  • an object of the present invention is to provide a sheet material that is lightweight, thin, and has a large amount of metal adhesion. Moreover, an object of this invention is to provide the various application goods which exhibit an electromagnetic wave shielding effect using this sheet
  • the sheet material has a base fabric including at least one fiber array layer in which continuous long fibers are arrayed by extending substantially linearly in one direction, and at least of the base fabric One surface is plated.
  • the fibers can be densely arranged without any gap. Since the long fibers are drawn, the diameter of the fibers is reduced, and a large number of fibers can be arranged with a small diameter. And the specific surface area (surface area per unit volume) of a fiber can be increased by these synergistic effects.
  • the amount of metal attached by plating greatly depends on the specific surface area of the fiber, especially the specific surface area of the fiber near the surface of the base fabric, so that the metal adheres more than when using a base fabric with randomly oriented fibers as in the past. Efficiency increases and more metal can be deposited.
  • the fibers can be extended in the in-plane direction of the sheet material, and the filling efficiency of the fibers in the base fabric can be increased.
  • Material can be created. Being thin, the metal is easily formed over the entire thickness of the base fabric, leading to a merit that the metal deposition efficiency is further increased.
  • a sufficient amount of metal adhesion can be obtained with a thin sheet, which contributes to weight reduction and also contributes to further thinning in combination with the above-described inherently bulky characteristics.
  • the base fabric may include a plurality of fiber array layers, and some fiber array layers and other fiber array layers may be laminated so that the extending directions of the long fibers are different from each other.
  • an electromagnetic wave shielding sheet material, wallpaper, and electric wire electromagnetic wave shielding tape have the above sheet material.
  • the present invention it is possible to provide a sheet material that is light and thin and has a large amount of metal adhesion. Moreover, according to this invention, the various application goods which exhibit an electromagnetic wave shielding effect can be provided using this sheet
  • FIG. 1 is a cross-sectional view of a sheet material according to an embodiment of the present invention.
  • the sheet material 1 has a base fabric 2 made of a non-woven fabric and plated portions 3 a and 3 b formed on both surfaces of the base fabric 2.
  • the plating parts 3a and 3b are actually metals attached to the surface of the fiber as will be described later, in FIG. 1, they are displayed in the form of layers for the convenience of illustration.
  • the plating parts 3a and 3b are formed on both surfaces of the base fabric 2 by electroless plating, they may be formed only on one side.
  • any material may be used as long as the formed plating parts 3a and 3b can exhibit an electromagnetic wave shielding effect.
  • a configuration in which copper and nickel are sequentially attached to the fiber is preferable. Used. In this configuration, copper is mainly responsible for the electromagnetic shielding effect, and nickel is mainly responsible for the rust prevention effect.
  • the amount of metal that adheres can be adjusted by changing the time during which the base fabric 2 is immersed in the plating solution. If the base fabric is dipped in the plating solution for a short time, an amount of metal that does not impair the inherent breathability of the base fabric can be adhered. An amount of metal to be coupled can also be deposited.
  • FIG. 2 is an exploded perspective view of the base fabric.
  • the base fabric 2 is configured by laminating a plurality of fiber array layers in which continuous long fibers are stretched substantially linearly in one direction and arranged.
  • four fiber array layers 12A, 12B, 12C, and 12D are shown. However, the number of stacked layers can be determined as appropriate, and depending on the application, only one fiber array layer is provided as described later. It doesn't matter.
  • the fiber array layers 12A, 12B, 12C, and 12D are thermocompression bonded together to form one base fabric 2 as a whole.
  • FIG. 3 is an enlarged partial perspective view showing a part of the fiber array layer of the base fabric. Only the fiber array layers 12A and 12B are shown in the figure, but the other fiber array layers have the same configuration. As illustrated, the fiber array layer 12A is an aggregate of a large number of fibers 13A extending in parallel and linearly to each other. Similarly, the fiber array layer 12B is an aggregate of a large number of fibers 13B extending in parallel and in a straight line. The fibers 13A and 13B may be folded in the middle or laminated in two or more layers.
  • the fiber array layer 12A can be made from thermoplastic resins such as polyethylene, polypropylene, polyester, polyamide, polyvinyl chloride resin, polyurethane, and fluorine resin, and modified resins thereof. Resins by wet or dry spinning means such as polyvinyl alcohol resins and polyacrylonitrile resins can also be used. The same applies to the fiber array layer 12B.
  • the diameter of each fiber 13A, 13B is, for example, about 10 ⁇ m.
  • the fiber array layers 12A and 12B are laminated so that the stretching direction 15A of the fibers 13A of the fiber array layer 12A and the stretching direction 15B of the fibers 13B of the fiber array layer 12B are orthogonal to each other.
  • the stretching direction 15C of the fibers 13C of the fiber array layer 12C is orthogonal to the stretching direction 15B of the fibers 13B of the fiber array layer 12B.
  • the extending direction 15D of the fibers 13D of the fiber array layer 12D is orthogonal to the extending direction 15C of the fibers 13C of the fiber array layer 12C.
  • the fiber array layers do not have to be perpendicular to each other between adjacent fiber array layers, and may be sequentially laminated with a certain angular difference. Two or more fiber array layers having the same stretch direction may be used.
  • the fiber array layer may be provided continuously.
  • the basis weight of the base fabric is preferably 5 g / m 2 or more and 60 g / m 2 or less.
  • Adhesive means such as an adhesive tape and an adhesive material may be provided on one or both surfaces of the base fabric.
  • the fibers 13A, 13B, 13C, 13D of the fiber array layers 12A, 12B, 12C, 12D are stretched and arranged in the stretching directions 15A, 15B, 15C, 15D.
  • the linearity and directionality of a fiber are very high, and also the density of a fiber is high.
  • the specific surface area of the fibers of the base fabric 2 can be increased as compared with the conventional nonwoven fabric.
  • the fiber diameter of a nonwoven fabric produced by a conventional spunbond method is generally about 20 ⁇ m, but the nonwoven fabric of this embodiment can be produced with a fiber diameter of about 10 ⁇ m.
  • the fiber extruded from the nozzle is further drawn in a later step, as will be described later.
  • the fiber weight per unit length is the same between the case where the fiber diameter is 20 ⁇ m and the case where the fiber diameter is 10 ⁇ m
  • one fiber having a diameter of 20 ⁇ m corresponds to four fibers having a diameter of 10 ⁇ m.
  • the surface area is proportional to the circumference, when the fiber diameter is 10 ⁇ m, the surface area is twice as large as when the fiber diameter is 20 ⁇ m. Since electroplating is a technique for forming a metal on an object to be plated that is in contact with a plating solution through a chemical reaction, the metal is formed on the surface of each fiber.
  • the volume or surface area of the formed metal depends not on the surface area of the base fabric but on the total surface area of the fibers constituting the base fabric 2. For this reason, in the base fabric 2 of this embodiment, it becomes possible to make more metal adhere to a fiber layer.
  • the fibers are overlapped in a straight line substantially parallel to each other, so that there is little entanglement and the fibers are exposed in a dense state on the surface of the fiber array layer. Since the electroplating solution penetrates into the inside of the base fabric, the metal is also formed inside the base fabric, but the metal is most likely to adhere to the surface of the fiber array layer and its vicinity. And in this embodiment, since the liquid contact area of the fiber on the surface of a base fabric has increased, the adhesion efficiency of a metal increases.
  • the base fabric of this embodiment is formed by extending
  • a conventional nonwoven fabric has a thickness of about 200 ⁇ m when the basis weight is about 30 g / m 2 , but the base fabric of this embodiment can be reduced to a thickness of about 100 ⁇ m when the basis weight is about 30 g / m 2 .
  • the base fabric of this embodiment is composed of continuous long fibers, the fibers are less likely to drop off when immersed in an electroplating solution, which is advantageous from the viewpoint of preventing contamination of the electroplating solution. Since the fibers do not easily fall off, the base fabric is easy to maintain its original state even after long-term use, and there is an advantage that the strength is not easily lowered.
  • the base fabric of this embodiment does not substantially contain an additive having volatility or bleed-out property at room temperature and a processing aid having volatility or bleed-out property.
  • a nonwoven fabric itself contains various additives in order to enhance spinnability, processability, and stretchability, or a processing aid necessary for each step is added.
  • fibers are entangled in a complicated manner, and thus it is necessary to reduce resistance during antistatic or stretching.
  • an additive or processing aid containing oil is used.
  • electroless plating it is necessary to keep the surface of the object to be cleaned in a clean state by polishing or washing in order to improve the adhesion of the metal.
  • the fibers are linearly arranged in one direction, and the arrangement unevenness is small. Therefore, the intersections of the fibers are less likely to be stretched at the time of drawing, and it is difficult to be charged. For this reason, the adhesiveness to a metal base fabric is favorable.
  • FIG. 4 is a schematic cross-sectional view of a mobile phone using the sheet material of the present invention as an electromagnetic shielding sheet material.
  • a display unit 43 and an operation unit 44 are provided in the case 42 of the mobile phone 41, and a substrate 45 is provided inside the case 42.
  • a speaker and a call port (not shown) are also provided on the same surface as the display unit 43.
  • An antenna 44 that is a main source of electromagnetic waves is further provided inside the housing 42.
  • An electromagnetic wave shielding sheet material 46 is attached to the inner surface of the housing 42 via an adhesive means such as an adhesive or an adhesive tape. Since the antenna 44 must always emit electromagnetic waves to the outside for communication with the base station, the antenna 44 is placed outside the electromagnetic shielding sheet material 46, but the substrate 45 is placed inside the electromagnetic shielding sheet material 46. positioned.
  • the electromagnetic wave emitted from the antenna 44 is difficult to reach the inside of the casing 42, and the influence on various elements installed on the substrate 45 is mitigated.
  • the electromagnetic shielding sheet material 46 of the present embodiment is thin, the influence on the internal space of the housing 42 is small and the weight is small, so that the weight of the cellular phone is not increased.
  • FIG. 5 is a schematic cross-sectional view of a wallpaper using the sheet material of the present invention as an electromagnetic wave shield.
  • the wallpaper 51 has a laminated structure in which a wallpaper body 52 and an electromagnetic shielding sheet material 53 are bonded together with an adhesive tape 54.
  • the wallpaper 51 is bonded to a reinforced concrete wall 55 with an adhesive 56 in such a direction that the wallpaper body 52 faces the interior space 57 of the room.
  • Electromagnetic waves generated from high-voltage power transmission lines and general electric equipment are extremely low frequency electromagnetic waves of 50 Hz or 60 Hz, and it is said that shielding is difficult even with concrete.
  • the wallpaper of this embodiment can be applied not only to a concrete wall but also to a mortar wall of a wooden house. Moreover, it is applicable to a ceiling and a floor as required, and can be embedded in the housing in advance. Moreover, it can be used for any part of a building where an electromagnetic shielding effect can be expected, such as partitions, doors, and shutters.
  • FIG. 6A and 6B show an example in which the sheet material of the present invention is applied to an electromagnetic wave shielding tape for electric wires.
  • 6A is a conceptual side view
  • FIG. 6B is a conceptual cross-sectional view.
  • the electric wire 61 has a configuration in which a plurality of covered electric wires 62 are gathered, and the whole is covered with an outer jacket 63.
  • a filler called interposition 64 is filled between the covered electric wires 62.
  • a wire electromagnetic wave shielding tape 65 is spirally wound around the aggregate of the covered electric wires 62.
  • the electromagnetic wave shielding tape 65 for electric wires not only binds the covered electric wires 62 but also effectively shields electromagnetic waves generated from the covered electric wires 62.
  • the base fabric of the electromagnetic wave shielding tape 65 for electric wires used in the present embodiment does not need to have a plurality of fiber array layers orthogonal to each other, and can be formed with only one fiber array layer. This is because only the winding direction needs to generate tension due to winding, and it is not necessary to generate tension in a direction perpendicular to the winding direction. Since tension is generated in the extending direction of the fiber array layer, it is preferable that the winding direction of the electromagnetic wave shielding tape 65 for electric wires coincides with the extending direction of the fiber array layer.
  • the arrows in the figure indicate the fiber drawing direction of the fiber array layer.
  • a base fabric in which a plurality of fiber array layers are orthogonal to each other may be used, and a plurality of fiber array layers are stacked so that the fiber stretching directions are parallel to each other. It may be formed.
  • a configuration in which a plurality of covered electric wires are gathered is used, but an electromagnetic wave shielding tape for electric wires is spirally wound around one bare core wire and the upper portion thereof is covered with a jacket. Good.
  • there is no limitation in the kind of electric wire It can apply to the arbitrary electric wires which an electric current flows and generate
  • a power transmission line for example, a power transmission line, a power supply line in a factory, and the like are given as representative examples. Conversely, it can be applied to an electric wire that does not like the influence of electromagnetic waves from the outside, and the adverse effects of the electromagnetic waves from the outside to the electric wires can be suppressed.
  • a high-density signal transmission line is a typical example.
  • FIG. 7 shows a schematic view of a production apparatus used for producing a fiber array layer constituting the base fabric.
  • the fiber array layer manufacturing apparatus 21 includes a spinning unit 22 mainly composed of a meltblown rice 24 and a conveyor 25, and a stretching unit 23 composed of stretching cylinders 26a and 26b, take-up nip rollers 27a and 27b, and the like. ing.
  • the melt blown rice 24 has a large number of nozzles 28 arranged at the tip (lower end) in a direction perpendicular to the paper surface (only one is shown in the figure).
  • a large number of fibers 31 are formed by the molten resin 30 fed from a gear pump (not shown) being extruded from the nozzle 28.
  • Air reservoirs 32a and 32b are provided on both sides of each nozzle 28, respectively.
  • High-pressure heated air heated to a temperature equal to or higher than the melting point of the resin is sent to the air reservoirs 32a and 32b, and is ejected from slits 33a and 33b communicating with the air reservoirs 32a and 32b and opening at the tip of the melt blown die 24.
  • a high-speed air flow substantially parallel to the extrusion direction of the fibers 31 extruded from the nozzle 28 is generated.
  • the fiber 31 extruded from the nozzle 28 is maintained in a meltable state that can be drafted by the high-speed airflow, and the fiber 31 is drafted by the frictional force of the high-speed airflow, thereby reducing the diameter of the fiber 31.
  • the temperature of the high-speed airflow is set to 80 ° C. or higher, desirably 120 ° C. or higher, than the spinning temperature of the fiber 31.
  • the temperature of the fiber 31 immediately after being extruded from the nozzle 28 can be made sufficiently higher than the melting point of the fiber 31 by increasing the temperature of the high-speed airflow. Therefore, the molecular orientation of the fiber 31 can be reduced.
  • a conveyor 25 is disposed below the meltblown rice 24.
  • the conveyor 25 is wound around a conveyor roller 29 and other rollers that are rotated by a drive source (not shown), and the fibers extruded from the nozzles 28 by driving the conveyor 25 by the rotation of the conveyor roller 13. 31 is conveyed rightward in the drawing.
  • the fiber 31 flows along a high-speed airflow that is a flow in which high-pressure heated air ejected from the slits 33a and 33b on both sides of the nozzle 28 is merged.
  • the high-speed air current flows in a direction substantially perpendicular to the conveying surface of the conveyor 25 by the high-pressure heated air ejected from the slits 33a and 33b.
  • a spray nozzle 35 is provided between the meltblown rice 24 and the conveyor 25.
  • the spray nozzle 35 sprays mist-like water into a high-speed air stream, whereby the fibers 31 are cooled and rapidly solidified.
  • a plurality of spray nozzles 35b are actually installed, but only one is shown in FIG.
  • the fluid ejected from the spray nozzle 35 is not necessarily required to contain moisture or the like as long as the fiber 31 can be cooled, and may be cold air.
  • An elliptical columnar airflow vibration mechanism 34 is provided in a region where high-speed airflow is generated by the slits 33a and 33b in the vicinity of the melt blown rice 24.
  • the airflow vibration mechanism 34 rotates in the direction of the arrow A around an axis 34a that is substantially orthogonal to the conveyance direction D of the fibers 31 on the conveyor 25, that is, substantially parallel to the width direction of the fiber array layer to be manufactured. Be made.
  • the Coanda effect When a wall exists in the vicinity of a high-speed jet of gas or liquid, the jet tends to flow near the direction along the wall surface, which is called the Coanda effect.
  • the airflow vibration mechanism 34 changes the flow direction of the fibers 31 using this Coanda effect. In the case of FIG.
  • the fibers 31 collected on the conveyor 25 are conveyed in the conveying direction D by the conveyor 25, nipped by the stretching cylinder 26a and the pressing roller 36 heated to the stretching temperature, and transferred to the stretching cylinder 26b. Thereafter, the fiber 31 is nipped between the stretching cylinder 26b and the pressing rubber roller 37, transferred to the stretching cylinder 26b, and is in close contact with the two stretching cylinders 26a and 26b. In this way, the fibers 31 are sent while being in close contact with the drawing cylinders 26a and 26b, so that the fibers 31 become a web in which the adjacent fibers 31 are fused together while being partially folded in the vertical direction.
  • the web obtained by being in close contact with the drawing cylinders 26a and 26b is further taken up by take-up nip rollers 27a and 27b (the take-up nip roller 27b in the subsequent stage is made of rubber).
  • the peripheral speed of the take-up nip rollers 27 a and 27 b is larger than the peripheral speed of the stretching cylinders 26 a and 26 b, whereby the web is stretched in the longitudinal direction and becomes the longitudinally stretched fiber array layer 38.
  • the stretchability of the filaments can be further improved by stretching the spun web in the machine direction.
  • the fiber 31 having a small stretching stress and a high elongation is formed. This is realized by spraying mist-like water from the spray nozzle 35 as described above and including the mist-like liquid in the high-speed airflow.
  • the directions of the fibers are aligned in one direction.
  • additives and processing aids containing oil are not used in each step of manufacturing the fiber array layer. Specifically, when the fiber 31 is extruded from the nozzle 28 (spinning step), no additive or processing aid containing oil is used. Even in the subsequent steps of collection onto the conveyor 25 and fiber drawing, no additive or processing aid containing oil is used. Therefore, the completed fiber array layer does not contain these additives and processing aids.
  • the above-described base fabric 2 is completed by sequentially laminating the fiber arrangement layers thus produced so that the directions of the fibers are orthogonal to each other and thermocompression bonding.

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  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Textile Engineering (AREA)
  • Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
  • Synthetic Leather, Interior Materials Or Flexible Sheet Materials (AREA)
  • Laminated Bodies (AREA)
  • Nonwoven Fabrics (AREA)

Abstract

L'invention porte sur un matériau en feuille qui est léger et mince, et sur lequel adhère une grande quantité d'un métal. Le matériau en feuille comporte une toile de base (2) comportant au moins une couche à fibres agencées (12A, 12B, 12C, 12D) sur laquelle de longues fibres non rompues sont étirées et agencées de façon presque linéaire dans une seule direction, au moins une surface de la toile de base (2) étant revêtue de métal.
PCT/JP2008/073460 2007-12-26 2008-12-24 Matériau en feuille, matériau en feuille pour blindage électromagnétique, papier peint et bande de blindage électromagnétique pour fil électrique WO2009081944A1 (fr)

Applications Claiming Priority (2)

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JP2007334471A JP4934584B2 (ja) 2007-12-26 2007-12-26 シート材、電磁波シールド用シート材、壁紙、及び電線用電磁波シールドテープ
JP2007-334471 2007-12-26

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WO2009081944A1 true WO2009081944A1 (fr) 2009-07-02

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101254908B1 (ko) 2009-07-24 2013-04-19 아사히 가세이 셍이 가부시키가이샤 전자파 차단 시트
US8702980B2 (en) 2009-12-18 2014-04-22 Zodiac Pool Care Europe Apparatus for cleaning an immersed surface having a hydraulic nosing-up action

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6233957B2 (ja) * 2013-08-26 2017-11-22 槌屋ティスコ株式会社 積層シート、成形品及びその製造方法
KR101423169B1 (ko) 2014-03-04 2014-07-28 톱텍에이치앤에스 주식회사 전자파 차폐막의 제조방법

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6178627U (fr) * 1984-10-29 1986-05-26
JPS62204399U (fr) * 1986-06-18 1987-12-26
JPH0513983A (ja) * 1991-07-05 1993-01-22 Kitagawa Ind Co Ltd 弾性導電部材及びその製造方法
JP2002111279A (ja) * 2000-10-04 2002-04-12 Japan Wavelock Co Ltd 電磁波シールド材及びその製造方法

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6178627A (ja) * 1984-09-26 1986-04-22 Kyowa Sangyo Kk 布地の溶着方法
JPS62204399A (ja) * 1986-03-05 1987-09-09 株式会社東芝 断線検出機能付計測装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6178627U (fr) * 1984-10-29 1986-05-26
JPS62204399U (fr) * 1986-06-18 1987-12-26
JPH0513983A (ja) * 1991-07-05 1993-01-22 Kitagawa Ind Co Ltd 弾性導電部材及びその製造方法
JP2002111279A (ja) * 2000-10-04 2002-04-12 Japan Wavelock Co Ltd 電磁波シールド材及びその製造方法

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101254908B1 (ko) 2009-07-24 2013-04-19 아사히 가세이 셍이 가부시키가이샤 전자파 차단 시트
US8702980B2 (en) 2009-12-18 2014-04-22 Zodiac Pool Care Europe Apparatus for cleaning an immersed surface having a hydraulic nosing-up action

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TW200942152A (en) 2009-10-01
TWI435688B (zh) 2014-04-21
JP4934584B2 (ja) 2012-05-16
JP2009158699A (ja) 2009-07-16

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