WO2006120832A1 - 電磁波を伝導又は吸収する特性を有する構造体 - Google Patents
電磁波を伝導又は吸収する特性を有する構造体 Download PDFInfo
- Publication number
- WO2006120832A1 WO2006120832A1 PCT/JP2006/307765 JP2006307765W WO2006120832A1 WO 2006120832 A1 WO2006120832 A1 WO 2006120832A1 JP 2006307765 W JP2006307765 W JP 2006307765W WO 2006120832 A1 WO2006120832 A1 WO 2006120832A1
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- WIPO (PCT)
- Prior art keywords
- fiber
- absorbing
- electromagnetic conducting
- electromagnetic
- conducting
- Prior art date
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Classifications
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- 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
-
- 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
- H05K9/0073—Shielding materials
- H05K9/0081—Electromagnetic shielding materials, e.g. EMI, RFI shielding
- H05K9/009—Electromagnetic shielding materials, e.g. EMI, RFI shielding comprising electro-conductive fibres, e.g. metal fibres, carbon fibres, metallised textile fibres, electro-conductive mesh, woven, non-woven mat, fleece, cross-linked
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/23—Sheet including cover or casing
- Y10T428/237—Noninterengaged fibered material encased [e.g., mat, batt, etc.]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/23907—Pile or nap type surface or component
- Y10T428/2395—Nap type surface
Definitions
- the present invention relates to a structure having a property of conducting or absorbing electromagnetic waves.
- the conductive interconnect material requires regular arrangement of conductive particles in order to maintain conductivity. If it is possible to regularly arrange conductive particles, it is very complicated to arrange regularly force particles that are useful in terms of conductivity.
- the conductive sealing material is provided with conductivity by kneading conductive particles into various types of resin. For this reason, the manufacturing method in this case is simple and there are few problems in the process, but in order to have conductivity, a large amount of conductive particles must be blended, which is expensive. was there. In addition, since a large amount of conductive particles are blended, other characteristics are affected.
- the polymer molded body having electromagnetic wave shielding property has a structure in which conductive fibers are planted on a polymer substrate using an adhesive layer having conductivity, etc. ,electromagnetic
- the ability to improve wave shielding is still not sufficient, and there is a need for a structure having even better electromagnetic shielding.
- the conductive fibers are only planted in the adhesive layer having conductivity, the conductive fibers that have come off from the adhesive layer that has become conductive or immediately become conductive may become dust or electromagnetic shielding. If conductive fibers are used in order to adversely affect the device on which the high-molecular molded article having the property is mounted and surrounding equipment, it is necessary to have good retention of the conductive fibers.
- Patent Document 1 Japanese Translation of Special Publication 2002-501821
- Patent Document 2 JP-A-10-120904
- Patent Document 3 Japanese Patent Laid-Open No. 61-2394
- the present inventors can provide a member having the pressure-sensitive adhesive layer with conductivity when the pressure-sensitive adhesive layer is provided with a specific structure portion made of conductive fibers, and easily.
- the specific structural part made of conductive fibers is made of fibers, the fibers can easily fall over due to external pressure such as roll pressure during production or pressure during use. As a result, the thickness of the specific structure portion due to the fiber may decrease, and the specification for conducting or absorbing the electromagnetic wave may decrease.
- an object of the present invention is to provide a structure capable of effectively maintaining a property of conducting or absorbing electromagnetic waves at an excellent level even when an external pressure is applied.
- Another object of the present invention is to provide a structure that can be suitably used as a conductive material, an electromagnetic wave absorbing material, and an electromagnetic wave shielding material.
- the present inventors have provided a specific structure portion with conductive fibers in the pressure-sensitive adhesive layer, and have a specific structure portion with conductive fibers.
- the surface of the pressure-sensitive adhesive layer with a fiber protective material capable of suppressing or preventing sideways The present inventors have found that the fiber can be effectively suppressed or prevented even if an external pressure such as roll pressurization is applied.
- the present invention has been completed based on these findings.
- the fiber convex structure part having a property of conducting or absorbing electromagnetic waves is partially disposed on the substrate, and at least a part of the fiber is located outside the surface of the substrate.
- a fiber protective material capable of suppressing or preventing the sideways of the fiber convex structure having the property of conducting or absorbing electromagnetic waves is provided at least partially at the site where the structure is not formed. It is a structure characterized by the above.
- the fiber protection material is constituted by a member having a through hole.
- a member having a plurality of through-hole portions in a net shape or a sheet-like member having a plurality of through-hole portions formed by drilling is preferably used.
- the material of the fiber protective material is preferably a plastic material.
- the thickness of the fiber protective material is 10% to 250% of the thickness of the portion located outside the surface of the substrate in the convex structure of the fiber that has the property of conducting or absorbing electromagnetic waves. It is preferable.
- the total area of the portion provided with the fiber convex structure portion having the property of conducting or absorbing electromagnetic waves over the base is from 0% with respect to the total surface area on one side of the base. It is preferable that the area has a ratio of 99.9% or less.
- the substrate is preferably at least one layer selected from a pressure-sensitive adhesive layer, an adhesive layer, and a polymer layer.
- the substrate preferably has a property of conducting or absorbing electromagnetic waves.
- the substrate may be formed on at least one surface of the support.
- the support preferably has a property of conducting or absorbing electromagnetic waves.
- the fiber convex structure portion having a property of conducting or absorbing electromagnetic waves is covered with a coating layer, and the coating layer has a property of conducting or absorbing electromagnetic waves.
- the coating layer has a property of conducting or absorbing electromagnetic waves.
- a sheet-like structure having a sheet-like form is suitable.
- the structure of the present invention can be suitably used for IJ as a conductive material, an electromagnetic wave absorbing material, or an electromagnetic wave shielding material.
- the structure of the present invention has the above-described configuration, even when an external pressure is applied, the characteristics of conducting or absorbing electromagnetic waves can be effectively maintained at an excellent level. Therefore, the structure of the present invention can be suitably used as a conductive material, an electromagnetic wave absorbing material, and an electromagnetic wave shielding material.
- FIG. 1 is a schematic cross-sectional view partially showing an example of a structure of the present invention.
- FIG. 2 is a schematic view partially showing an example of a fiber protective material used in the structure of the present invention.
- FIG. 3 is a schematic sectional view showing an example of the structure of the present invention.
- FIG. 4 is a schematic sectional view showing an example of the structure of the present invention.
- FIG. 5 is a schematic view showing a net member made of polyethylene as a fiber protective material used in Example 1.
- FIG. 6 is a schematic cross-sectional view showing a sheet-like structure produced in Example 1.
- FIG. 7 is a schematic cross-sectional view showing a sheet-like structure produced in Example 2.
- FIG. 8 is a schematic cross-sectional view showing a sheet-like structure produced in Example 3.
- FIG. 9 is a schematic cross-sectional view showing a sheet-like structure produced in Example 4.
- FIG. 10 is a schematic cross-sectional view showing a sheet-like structure produced in Example 5.
- FIG. 11 is a schematic cross-sectional view showing a sheet-like structure produced in Comparative Example 1.
- FIG. 12 is a graph showing a magnetic field shielding effect for some data in Table 2.
- FIG. 13 is a graph showing a magnetic field shielding effect for a part of the data in Table 2.
- FIG. 14 is a graph showing a magnetic field shielding effect for a part of the data in Table 2.
- Figure 15 shows a graph of the magnetic field shielding effect for some data in Table 2. It is a figure.
- Fig. 16 is a schematic diagram showing the shield box used in the KEC electromagnetic shielding evaluation system.
- Fig. 16 (a) shows the electric field shield box and
- Fig. 16 (b) shows the magnetic field shield box. Yes.
- FIG. 17 is a schematic view partially showing an example of a fiber protective material used in the structure of the present invention.
- the structure of the present invention has a fiber convex structure part having a property of conducting or absorbing electromagnetic waves partially on the substrate (referred to as “electromagnetic wave conducting and absorbing fiber convex structure part”).
- electromagnetic wave conducting and absorbing fiber convex structure part a structure that has the property of conducting or absorbing electromagnetic waves by being formed in a form in which at least a part of the fiber is located outside the surface of the substrate.
- the sideways of the electromagnetic conducting / absorbing fiber convex structure portion is suppressed or formed in a portion where the fiber convex structure portion having the property of conducting or absorbing electromagnetic waves is not formed. It has a structure with a fiber protective material that can be prevented.
- the structure of the present invention since the structure of the present invention has an electromagnetic conducting or absorbing fiber convex structure, it has the property of conducting or absorbing electromagnetic waves (sometimes referred to as “electromagnetic conducting or absorbing”). It can be demonstrated at an excellent level.
- the portion where the electromagnetic conducting or absorbing fiber convex structure portion is not formed can at least partially suppress or prevent the electromagnetic conducting or absorbing fiber convex structure portion from overturning. Since possible fiber protection materials are formed, external pressure such as roll pressure during the production of the structure, pressing pressure during pressing of the structure and winding pressure during winding, etc. Even when various external pressures such as the external pressure are applied, the lateral collapse of the electromagnetic conducting or absorbing fiber convex structure is suppressed or prevented, and an excellent level of electromagnetic conducting or absorbing properties can be effectively maintained. Monkey.
- FIG. 1 is a schematic sectional view partially showing an example of the structure of the present invention.
- 1 is a structure
- la is a substrate
- lal is a surface of the substrate la
- lb is a convex structure portion of electromagnetic conducting or absorbing fiber
- lc is a fiber protective material.
- the structure 1 shown in FIG. 1 is partially formed with the electromagnetic conducting or absorbing fiber convex structure lb and the electromagnetic conducting or absorbing fiber convex structure lb on the surface la 1 of the base la.
- the surface lal portion of the substrate la which is not made has a structure provided with a fiber protective material lc!
- the electromagnetic conducting or absorbing fiber convex structure portion is formed on the base in such a form that at least a part of the fiber is located on the outer side (outer side) of the surface of the base.
- the protective material is provided at least partially (entirely or partially) on the surface of the substrate where the electromagnetic conducting or absorbing fiber convex structure is not formed.
- the fiber protective material is preferably provided entirely on the surface of the substrate where the electromagnetic conducting or absorbing fiber convex structure is not formed.
- the form in which the fiber protective material is provided on the surface of the substrate is not particularly limited as long as the fiber protective material can be easily fixed to the surface of the substrate in a state of V, which is not easily peeled off!
- the substrate is a pressure-sensitive adhesive layer or an adhesive layer (adhesive layer) as shown below, a fiber protective material is bonded to the surface of the adhesive layer as the substrate.
- the fiber protective material can be formed in a state of being adhered to the surface of the substrate, and the substrate is not an adhesive layer.
- the substrate is not an adhesive layer, it can be obtained by using known fixing means (for example, an adhesive or A method of bonding to a substrate using an adhesive, or forming a pressure-sensitive adhesive layer or adhesive layer on one side of a fiber protective material, and using the pressure-sensitive adhesive layer or adhesive layer formed on one side of the fiber protective material Then, by using a method of bonding to the surface of the substrate or the like, the fiber protective material in a state of being bonded to the surface of the substrate can be formed.
- fixing means for example, an adhesive or A method of bonding to a substrate using an adhesive, or forming a pressure-sensitive adhesive layer or adhesive layer on one side of a fiber protective material, and using the pressure-sensitive adhesive layer or adhesive layer formed on one side of the fiber protective material.
- the fiber protective material or suppress the overturning of the electromagnetic conducting or absorbing fiber convex structure portion or Any member that can be prevented is not particularly limited.
- the fiber protective material for example, the case where the electromagnetic conducting or absorbing fiber convex structure part has a configuration in which a plurality of electromagnetic conducting or absorbing fiber convex structure parts are formed in an independent form on the substrate. (In other words, when the structure is formed in an island shape in the V sea “sea-island structure”), an electromagnetic conducting or absorbing fiber convex structure portion on the surface of the substrate is formed. It should be composed of a single member or a plurality of members that can cover the region.
- At least a through hole is formed in the region corresponding to the convex structure of the electromagnetic conducting or absorbing fiber formed on the substrate. It is preferable that it is comprised by the member which has. As described above, by using a member having a through hole as the fiber protective material, it is possible to easily provide the fiber protective material in a portion where the electromagnetic conducting or absorbing fiber convex structure portion is not formed on the surface of the substrate. it can. Therefore, as the structure of the present invention, an electromagnetic conducting or absorbing fiber convex structure portion is partially formed on the substrate in a form in which at least a part of the fiber is located outside the surface of the substrate.
- the surface of the base body is provided with a fiber protective material by a member having a through-hole portion, and corresponds to the through-hole portion of the fiber protective material. It is preferable that at least one part of the electromagnetic conducting or absorbing fiber convex structure portion is formed at the base portion in a form in which at least a part of the fiber is located outside the surface of the base body.
- the fiber protective material by the member having the through-hole portion a single member having a plurality of through-hole portions is used depending on the shape of the electromagnetic wave conductive absorbent fiber convex structure portion formed on the base. It may be configured using only one, or may be configured using a plurality of members having a single or a plurality of through-hole portions.
- the shape of the through hole is not particularly limited as long as the electromagnetic conducting or absorbing fiber convex structure can be positioned in the through hole.
- a shape corresponding to the shape of the convex structure of the electromagnetic conducting or absorbing fiber is preferred.
- various irregular shapes other than a regular shape such as a substantially circular shape or a substantially polygonal shape, for example, according to the shape of the electromagnetic conducting or absorbing fiber convex structure portion. Any of these shapes may be used.
- the arrangement state of the plurality of through-hole portions is not particularly limited, and is regularly arranged or not. Even if it is in a misaligned state, it is regularly arranged.
- the width (average width, minimum width, maximum width, etc.) is not particularly limited, and can be appropriately selected according to the shape of the electromagnetic conducting or absorbing fiber convex structure formed on the substrate. Therefore, the through hole portion may be formed regularly or irregularly.
- the member having a through hole is not particularly limited as long as it is a member having a through hole.
- a plurality of through holes are formed in a net shape.
- a sheet-like member that has a plurality of through-hole portions formed by perforation as shown in FIG. 17 (“perforated sheet”). May be referred to as “member”). That is, it is preferable that the fiber protective material is composed of a net-like member or a perforated sheet member.
- FIG. 2 is a schematic view partially showing an example of the fiber protective material used in the structure of the present invention.
- 21 to 22 are net-like members
- 21 a is a through-hole portion in the net-like member
- 22 a is a through-hole portion in the net-like member 22.
- the net-like member 2 has a plurality of through-hole portions 2a formed in a net shape.
- the net-like member can have a plurality of regular or irregular shaped through-hole portions regularly or irregularly.
- FIG. 17 is a schematic view partially showing an example of the fiber protective material used in the structure of the present invention.
- 11 is a perforated sheet member
- 111 is a sheet-like base material
- 112 is a through hole portion (perforated portion) formed by perforation.
- the perforated sheet member 11 has a plurality of perforated portions as through-hole portions in a predetermined portion of the sheet-like base material 111 by perforation.
- the perforated sheet member can have a plurality of regular or irregular shaped through-hole portions, like the net-like member, regularly or irregularly.
- the perforated sheet member is formed by perforating with a perforator, the shape, size, formed part, etc. of the through hole portion (perforated part) in the perforated sheet member are determined. Can be easily controlled. That is, in the perforated sheet member, the degree of freedom in designing the through-hole portion to be formed is high, and the perforated sheet member is not an adhesive layer. When adhering or adhering to any substrate, there is an advantage that it is easier to secure an adhesion area than a net-like member.
- the perforated sheet member in which the through hole portions are arranged in a predetermined pattern shape can be easily adjusted by adjusting the size and formation position of the through hole portion when perforating. Can be produced.
- a peripheral portion of the formed perforated part is usually formed with a thick portion that is raised only on one surface side.
- the perforated sheet member is used in such a form that the protruding portion of the thick part is located on the outside. Therefore, in the present invention, when the member having the through hole is a perforated sheet member, the thickness (maximum thickness) of the peripheral portion of the perforated part is set as the thickness of the perforated sheet member. adopt.
- the thickness of the member having the through hole portion is a net-like member or a punched sheet member having a thick portion formed in the peripheral region portion of the punched portion, the thickness of the member having the through hole portion is The thickness of the peripheral region of the through hole is adopted, and this thickness corresponds to the average thickness of the member having the through hole.
- the net-like member is a member having a through-hole portion such as a perforated sheet member, and the porosity is not particularly limited, and the electromagnetic conducting or absorbing fiber convex structure formed on the substrate is not limited. It can be appropriately selected depending on the area of the part, for example, a range force of greater than 0% and not more than 99.9% can be appropriately selected. Note that the porosity of the member having a through-hole portion can be appropriately selected depending on the use of the structure, the size of the surface area on one surface of the structure, and the like.
- the structure of the present invention when used as an electromagnetic shielding material for an electronic component (particularly, an electronic component used in a so-called “mobile phone”), or on one surface of the structure.
- the porosity of the member having the through hole is preferably 0.3 to 99.8%, more preferably 30 to 90%, particularly 45 to 80% is preferred.
- the structure of the present invention is used as an electromagnetic shielding material for buildings, for example [for example, members constituting each surface of a building (wall surface, ceiling wall surface, floor wall surface, etc.) When used in the form of affixing to building materials (various boards, flooring, etc.), or when the surface area on one side of the structure is large (for example, when the surface area is 0.5 m 2 or more) As a void ratio in a member having 0.03 to 99.8% More preferably, the content is 0.1 to 50%, and particularly preferably 0.3 to 40%.
- the porosity of a member having a through hole is a value measured by the following “measurement method of porosity”.
- a member having a through hole is colored in an appropriate color as necessary, and then placed on a paper exhibiting a certain color different from that of the member having a through hole (for example, the through hole is If the member has a white color such as white or milky white, place the member with a through hole on black paper, or what color the member with the through hole has Even if it is present, the member having the through hole is colored with black and then placed on white paper) and scanned with a scanner to obtain image data of the member having the through hole. (Input) to the computer. On the computer, use the product name “PHOTOSHOP ELEMENTS 2.0” (manufactured by Adobe Systems; digital image editing software) as image processing related software, and perform processing or editing such as removing excess parts.
- POTOSHOP ELEMENTS 2.0 manufactured by Adobe Systems; digital image editing software
- a portion of the member having a through-hole portion is a black portion
- a portion of the through-hole portion is Process or edit the extra color part to a predetermined color so that it becomes a white part).
- MATROX INSPECTOR 2.1 manufactured by MATROX; sale: Canon System Solutions Inc .; image processing algorithm verification tool
- binarization processing and unit area (10 mm X 10mm) calculate the ratio or ratio of each color (calculate the ratio or ratio of each color at three different power points and obtain the average value), and calculate the ratio of the through hole in the member with the through hole.
- the ratio or ratio between white and black is obtained.
- black ratio is the ratio of the member having the through hole portion
- white ratio is the ratio of the through hole portion in the member having the through hole portion (that is, the through hole portion).
- the through hole is displayed on the screen displayed by the output of the computer without coloring the member having the through hole portion.
- the product name “PHOTOSHOP ELEMENTS 2.0” manufacturer of Adobe Systems; digital image editing software
- binarization processing was performed using “MATROX INSPECTOR 2.1” (manufactured by MATROX; sales: Canon System Solutions, Inc .; image processing algorithm verification tool) Calculate the ratio or ratio of each color per unit area (10mm X 10mm) (calculate the ratio or ratio of each color at three different power points and obtain the average value), and make a through hole in the part with the through hole Find the ratio of parts.
- MATROX INSPECTOR 2.1 manufactured by MATROX; sales: Canon System Solutions, Inc .; image processing algorithm verification tool
- the material of the fiber protective material is not particularly limited, and examples thereof include a plastic material, a fiber material, a paper material, and a metal material.
- plastic materials include polyethylene (low density polyethylene, linear low density polyethylene, medium density polyethylene, high density polyethylene, etc.), polypropylene, poly 1-butene, poly 4- methyl-1 pentene, ethylene propylene copolymer, Ethylene 1-butene copolymer, ethylene acetate butyl copolymer, ethylene acrylate copolymer (such as ethylene acrylate copolymer, ethylene methyl methacrylate copolymer), ethylene butyl alcohol copolymer, etc.
- Olefin-based resin Polyester-based resin such as polyethylene terephthalate, polybutylene terephthalate, polyethylene naphthalate, polybutylene naphthalate; polyacrylate; polystyrene, styrene isoprene copolymer, styrene-buta Copolymers, Styrene Isoprene Styrene Copolymers, Styrene Butadiene Styrene Copolymers, Acrylonitrile Butadiene Styrene Copolymers, etc .; Polyamide Resins such as Polyamide 6, Polyamide 6, etc .; Poly Salt Examples include bul; polysalt, vinylidene; polycarbonate.
- Examples of the fiber material include cotton fiber, rayon fiber, polyamide fiber, polyester fiber, polyacrylonitrile fiber, acrylic fiber, polybutyl alcohol fiber, polyethylene fiber, polypropylene fiber, and polyimide. Fiber, silicone fiber, fluorine resin, and the like.
- Examples of the paper material include Japanese paper, Western paper, high-quality paper, Darashin paper, kraft paper, Kurupak paper, crepe paper, clay coated paper, top coat paper, synthetic paper, plastic laminated paper, and plastic coated paper.
- Examples of the metal material include an aluminum material and a copper material.
- the material for the fiber protective material is preferably a plastic material, a fiber material, or a paper material, and a plastic material is particularly preferable.
- the raw material of a fiber protective material can be used individually or in combination of 2 or more types.
- the fiber protective material a material that is lightweight and has good flexibility can be suitably used. From the viewpoint of lightness and flexibility, a thin-leaf-shaped member (particularly a sheet-shaped member) can be suitably used as the fiber protective material.
- plastic materials are preferred as the material for the fiber protective material.
- olefin resin especially ethylene monomers such as polyethylene, polypropylene, ethylene-propylene copolymer, and ethylene using at least Z or propylene monomer
- System resin and z or propylene resin and polyester resin (particularly polyethylene terephthalate) are suitable.
- the thickness (or height) of the fiber protective material is not particularly limited, and it is important that the thickness be capable of suppressing or preventing the electromagnetic conducting or absorbing fiber convex structure from overturning. And can be appropriately selected depending on the thickness (or height) of the convex structure portion of the electromagnetic conducting or absorbing fiber.
- the thickness (or height) of the fiber protective material for example, the thickness (or the portion of the electromagnetic conducting or absorbing fiber convex structure portion positioned outside the surface of the substrate (or The thickness (or height) may be 10 to 250% (preferably 20 to 200%, more preferably 80 to 150%, particularly preferably 90 to 120%). .
- the thickness of the fiber protective material is less than 10% of the thickness of the portion located outside the surface of the base in the electromagnetic conducting or absorbing fiber convex structure portion, The effect of suppressing or preventing the sideways of the electromagnetic conducting or absorbing fiber convex structure portion is reduced. On the other hand, if the thickness exceeds 250%, the fiber protective material is too thick and economical. Disadvantageous, and The flexibility, flexibility, lightness, etc. of the structure may be reduced.
- the method for producing the fiber protective material is not particularly limited.
- the fiber protective material is a member having a through hole portion (particularly, a net-like member or a perforated sheet member)
- the fiber protective material has a through hole portion.
- the fiber protective material is a member having a through-hole portion (particularly a net-like member or a perforated sheet member) and is made of a plastic material, for example, it has a through-hole portion.
- a through hole is formed by thermally melting a plastic material
- a method using a roll having a convex part or a concave part etc., to produce a member made of a plastic material and having a through-hole part (particularly, a net-like member or a perforated sheet member made of a plastic material) can do.
- the fiber protective material may be colored in the same color as the fibers of the electromagnetic conducting or absorbing fiber convex structure portion from the viewpoint of the appearance of the structure. Further, the fiber protective material may have electromagnetic conducting or absorbing properties from the viewpoint of improving the electromagnetic conducting or absorbing properties of the structure. Furthermore, the surface of the fiber protective material (particularly, the surface that becomes the outer surface when it is provided on the surface of the substrate) is a release surface for the pressure-sensitive adhesive layer or adhesive layer (such as the surface of the release treatment agent layer). May be.
- the electromagnetic conducting or absorbing fiber convex structure portion is located on the substrate, and at least a part of the fiber is located outside (outer surface side) of the surface of the substrate. It is formed in the form.
- the electromagnetic conducting or absorbing fiber convex structure is formed in a form in which at least a part of the fiber is positioned outside the surface of the substrate and has electromagnetic conducting or absorbing properties.
- the configuration is not particularly limited.
- the configuration of the electromagnetic conducting or absorbing fiber convex structure for example, (1) a configuration in which the electromagnetic conducting or absorbing fiber convex structure is partially formed on the surface of the substrate, ( 2) The substrate is partially formed with a recess, and at least a part of the fiber is formed on the wall surface of the recess. Examples include a configuration in which the electromagnetic conducting or absorbing fiber convex structure portion is formed in a form protruding outward (external side) from the surface of the substrate.
- the electromagnetic conducting or absorbing fiber convex structure in the above-described configuration (1), is formed on the surface of the substrate. It can be said that all the fibers have a configuration having a portion that is located outside the surface of the substrate.
- the electromagnetic conducting or absorbing fiber convex structure is formed on the wall surface of the concave portion of the substrate, so that at least a part of the fibers (with a force of one fiber) It can be said that a part of the structure has a portion located outside the surface of the substrate.
- the electromagnetic conducting or absorbing fiber convex structure portion requires that all the fibers are not necessarily located outside (outside) the surface of the substrate, and at least some fibers (for example, electromagnetic waves)
- the conductive absorbent fiber convex structure is formed on the wall surface of the concave portion of the substrate, the fiber formed on the upper side of the concave wall surface of the substrate is located outside the surface of the substrate.
- the fibers located outside the surface of the substrate it is not necessary that the total length of one fiber is located outside the surface of the substrate. At least a part of one fiber is not necessary. Should be located outside the surface of the substrate! /.
- the electromagnetic conducting or absorbing fiber convex structure portion is formed on the wall surface of the concave portion of the base body, it is not necessary to be formed on the entire wall surface of the concave portion of the base body. It ’s part of it!
- the electromagnetic conducting or absorbing fiber convex structure portion has a shape in which at least a part of the fiber is located outside the surface of the substrate, and is formed in a convex shape by the fiber, and further has an electromagnetic wave conducting and absorbing property.
- an electromagnetic conducting or absorbing fiber convex structure having a structure in which a lump of fibers is provided on the formed surface.
- the electromagnetic conducting or absorbing fiber raised portion has a structure in which the surface of the substrate stands up to the surface force.
- Convex shape of electromagnetic conducting or absorbing fiber with a structure in which a lump of fibers is provided on the surface of the substrate For example, a structural part.
- the electromagnetic conducting or absorbing fiber convex structure is formed on the wall surface of the recess in the base, at least a part of the fiber protrudes from the wall of the recess in the base to stand outside the surface of the base.
- the electromagnetic conducting or absorbing fiber raised portion having a structure, the fiber lump is provided on the concave wall surface of the base, and a part of the fiber protrudes outside the surface of the base Examples of such a structure include an electromagnetic conducting or absorbing fiber convex structure.
- the electromagnetic conducting or absorbing fiber convex structure portion may be composed of a single structure or may be composed of a structure in which a plurality of structures are combined.
- one electromagnetic conducting or absorbing fiber convex structure portion is usually composed of a plurality of fibers.
- the number and density of fibers constituting one electromagnetic conducting or absorbing fiber convex structure portion are not particularly limited, and can be appropriately selected according to the intended electromagnetic conducting or absorbing property.
- an electromagnetic conducting or absorbing fiber raised portion having a structure in which the formed fibers are raised up from the surface (in particular, the fibers stand up from the surface of the substrate). Therefore, an electromagnetic conducting or absorbing fiber raising portion having a structure that is similar to that described above is preferred.
- Examples of the structure of such an electromagnetic conducting or absorbing fiber raising portion include (1) One end of one fiber is bonded and fixed to a predetermined surface (surface, concave wall surface, etc.) of the substrate. A structure in which the fiber stands up in a substantially I-shape and protrudes outward from the surface of the substrate with the other end not fixed (free); (2) one fiber The center part of the fiber is bonded to a predetermined surface (surface, concave wall surface, etc.) of the base, and both ends of the fiber are fixed, and the fiber is substantially outside the surface of the base in the absence (free).
- the fiber stands up from a predetermined surface (surface, concave wall surface, etc.) of the substrate to the outside of the surface of the substrate in a shape of approximately W shape, approximately M shape, approximately N shape, approximately O shape, etc.
- a structure that is a combination of these structures are a predetermined surface (surface, concave wall surface, etc.
- the structure of the electromagnetic wave conductive absorbent fiber raising portion the structure of (1) (a predetermined surface force such as the surface of the substrate or the wall surface of the recess)
- the structure in which the fibers stand up and protrude substantially in the shape of an I-shape on the outer side of the surface is preferable.
- the electromagnetic conducting or absorbing fiber raised portion rises linearly from a predetermined surface (surface, concave wall surface, etc.) of the substrate like a fiber force I-shape, and is outside the surface of the substrate. It may be in a state where it protrudes outwardly from the surface of the substrate while standing up as a whole, in a state having a jagged shape, a wavy shape, a loop shape or the like.
- the electromagnetic conducting or absorbing fiber convex structure portion is partially provided on the substrate, and the overall shape thereof is not particularly limited, and may have a predetermined pattern shape.
- the overall shape of the electromagnetic conducting or absorbing fiber convex structure corresponds to the overall shape of the recess. It will be.
- Area of total electromagnetic conducting or absorbing fiber convex structure is not particularly limited, but from the viewpoint of electromagnetic conducting or absorbing properties, for example, greater than 0% with respect to the total surface area on one side of the substrate 99.
- the area is preferably 9% or less.
- the area of all electromagnetic conducting / absorbing fiber convex structures depends on the use of the structure, the size of the surface area on one side of the structure, etc., as well as the porosity of the member having a through hole. Can be selected as appropriate. Specifically, for example, when the structure of the present invention is used as an electromagnetic shielding material for an electronic component (particularly, an electronic component used in a so-called “mobile phone”), or on one surface of the structure.
- the area of the total electromagnetic conducting or absorbing fiber convex structure is preferably 0.3 to 99.8%. Is 30 to 90%, particularly 45 to 80%.
- the structure of the present invention is used as, for example, an electromagnetic shielding material for buildings [for example, members constituting each surface of a building (wall surface, ceiling wall surface, floor wall surface, etc.) When used in the form of affixing to building materials (such as various boards and flooring), or when the surface area of one side of the structure is large (for example, when the surface area is 0.5 m 2 or more)
- the area of the absorbent fiber convex structure is 0.03 to 99.8%, more preferably 0.1 to 50%, and particularly 0.3 to 40%.
- All electromagnetic conducting or absorbing fiber convex structure If the area to be cut is too low with respect to the total surface area on one side of the substrate, the electromagnetic conducting or absorbing property is lowered. On the other hand, the area of the substrate surface of the total electromagnetic conducting or absorbing fiber convex structure portion is
- the proportion of the fiber protective material is reduced, and the ability to prevent the electromagnetic conducting or absorbing fiber convex structure from falling over is reduced. There is a case.
- each electromagnetic conducting or absorbing fiber convex structure on the surface of the substrate is not particularly limited.
- the area of the electromagnetic conducting or absorbing fiber convex structure on the substrate surface can be the area of the portion surrounded by the electromagnetic conducting or absorbing fiber convex structure. Therefore, when the electromagnetic conducting or absorbing fiber convex structure is formed on the wall surface of the recess in the substrate, the area of the electromagnetic conducting or absorbing fiber convex structure on the substrate surface is equal to the area of the opening on the substrate surface of the recess. Equivalent to.
- Such an electromagnetic conducting or absorbing fiber convex structure portion can be constituted by a fiber having electromagnetic conducting or absorbing properties (sometimes referred to as “electromagnetic conducting or absorbing fiber”).
- the electromagnetic conducting or absorbing fiber is not particularly limited, and the fiber material itself may be a fiber having electromagnetic conducting and absorbing properties (sometimes referred to as “electromagnetic conducting and absorbing material fiber”). It may also be a fiber having conductivity / conductivity imparted by an electromagnetic conducting / absorbing material (sometimes referred to as “electromagnetic conducting / absorbing property imparting fiber”).
- the electromagnetic conducting or absorbing fiber may be used alone or in combination of two or more.
- the electromagnetic conducting or absorbing fiber and the electromagnetic conducting or absorbing fiber may also be used.
- the non-electromagnetic conducting and absorbing fiber when used together with the electromagnetic conducting and absorbing fiber, the electromagnetic conducting and absorbing fiber and the non-electromagnetic conducting and absorbing fiber may be used as separate yarns, respectively. , May be used as a single thread.
- the convex structure of the electromagnetic conducting or absorbing fiber may be composed of a thread made of only the electromagnetic conducting or absorbing fiber and a thread made of only the non-electromagnetic conducting or absorbing fiber. It may be composed of a twisted yarn with an electromagnetic conducting or absorbing fiber.
- Non-electromagnetic conducting and absorbing fibers include cotton fiber Fiber, rayon fiber, polyamide fiber, polyester fiber, polyacrylonitrile fiber, acrylic fiber, polybutyl alcohol fiber, polyethylene fiber, polyimide fiber, polyolefin fiber, silicone fiber, fluorine-based resin fiber, etc. Can be mentioned.
- the electromagnetic conducting or absorbing material fiber a fiber composed of a material in which the fiber material itself has electromagnetic conducting or absorbing property can be used.
- the electromagnetic conducting or absorbing material fiber include carbon fibers, fibers made of a conductive polymer, and metal fibers.
- carbon fibers include fibers made of carbon materials such as carbon black.
- the conductive polymer in the fiber made of the conductive polymer is not particularly limited, and is a polyacetylene-based conductive polymer, a polypyrrole-based conductive polymer, a polyacene-based conductive polymer, a polyphenylene-based conductive polymer, a poly-arylene-based polymer.
- Examples thereof include phosphorus-based conductive polymers and polythiophene-based conductive polymers. Furthermore, it does not restrict
- the metal fibers include gold fibers, silver fibers, aluminum fibers, iron fibers, copper fibers, nickel fibers, stainless steel fibers, fibers made of metal elements such as copper-nickel alloy fibers, Examples thereof include fibers made of various metal compounds containing non-metallic elements together with metallic elements such as copper sulfide fibers.
- the electromagnetic conducting or absorbing fiber is not particularly limited as long as the electromagnetic conducting or absorbing fiber is a fiber having an electromagnetic conducting or absorbing property imparted by an electromagnetic conducting or absorbing material.
- fibers coated with an electromagnetic conducting or absorbing material sometimes referred to as “electromagnetic conducting or absorbing material-coated fibers” or fibers impregnated with an electromagnetic conducting or absorbing material (“electromagnetic conducting or absorbing material impregnated fibers”).
- fibers in which an electromagnetic conducting or absorbing material is contained in a fiber material sometimes referred to as “electromagnetic conducting and absorbing material-containing material fiber”).
- an electromagnetic conducting or absorbing material-coated fiber or an electromagnetic conducting or absorbing material-impregnated fiber can be suitably used.
- a fiber (fiber material) before the electromagnetic conducting / absorbing property is imparted to the electromagnetic conducting / absorbing material-coated fiber or electromagnetic conducting / absorbing material impregnated fiber as an electromagnetic conducting / absorbing fiber Special However, any of natural fibers, semi-synthetic fibers, and synthetic fibers may be used.
- the fiber material (fiber) may be an electromagnetic conducting or absorbing fiber or a non-electromagnetic conducting or absorbing fiber.
- fiber material examples include cotton fiber, rayon fiber, polyamide fiber [aliphatic polyamide fiber, aromatic polyamide fiber (so-called aramid fiber), etc.], polyester fiber (trade name) "Tetron”, etc.), polyacrylo-trile fiber, acrylic fiber, polybulal alcohol fiber (so-called vinylon fiber), polyethylene fiber, polyimide fiber, polyolefin fiber, silicone fiber, fluorine resin fiber, etc.
- Non-electromagnetic conducting or absorbing fibers, and electromagnetic conducting or absorbing fibers such as carbon fibers (carbon-based fibers).
- non-electromagnetic conducting and absorbing fibers are preferable, and cotton fibers, rayon fibers, polyamide fibers, and polyester fibers are particularly preferable. Only one type of fiber material may be used, or two or more types may be used in combination.
- the electromagnetic conducting or absorbing material-coated fiber as the electromagnetic conducting or absorbing property-imparting fiber is not particularly limited, and for example, a metal material or a plastic material having electromagnetic conducting or absorbing properties ( In addition to the “electromagnetic conducting / absorbing plastic material”), various magnetic materials can be used, and metal materials can be preferably used.
- the electromagnetic conducting or absorbing materials can be used alone or in combination of two or more.
- the metal material may be a metal material that can only be a metal element such as a metal element alone or an alloy, or may be various metal compounds containing a non-metal element together with a metal element. .
- a metal material having only a metal element is suitable.
- examples of metal elements in a metal material composed of a single metal element include periodic table group 1 elements such as lithium, sodium, potassium, rubidium, and cesium; periodic tables such as magnesium, calcium, strontium, and barium.
- Group 2 elements Periodic Table 3 elements such as scandium, yttrium, lanthanoid elements (lanthanum, cerium, etc.), actinoid elements (actinium, etc.); Group 4 elements such as titanium, zirconium, hafnium, etc .; Vanadium, niobium Periodic Table Group 5 elements such as tantalum, etc .; Periodic Table Group 6 elements such as chromium, molybdenum and tungsten; Group 7 elements such as manganese, technetium and rhenium; Group 8 elements such as iron, ruthenium and osmium; Cobalt ,rhodium Periodic Table Group 9 elements such as nickel, palladium, platinum, etc.
- Periodic Table Group 10 Elements copper, silver, gold, etc.
- Periodic Table Group 11 elements zinc, cadmium, mercury, etc.
- Periodic Table Group 12 elements examples include periodic group 13 elements such as minium, gallium, indium and thallium; periodic table group 14 elements such as tin and lead; periodic table group 15 elements such as antimony and bismuth.
- examples of alloys include stainless steel, copper-nickel alloy, brass, nickel-chromium alloy, iron-nickel alloy, zinc-nickel alloy, gold-copper alloy, tin-lead alloy, silver-tin- Lead alloys, nickel-chromium-iron alloys, copper-manganese-nickel alloys, nickel-manganese-iron alloys, and the like.
- various metal compounds containing a non-metal element together with a metal element are not particularly limited as long as they are metal compounds that can exhibit electromagnetic conducting / absorbing properties including the metal elements and alloys described above.
- Metal sulfides such as copper sulfide; metal oxides such as iron oxide, titanium oxide, tin oxide, indium oxide, and cadmium tin oxide, and metal composite oxides.
- metal material specifically, gold, silver, aluminum, iron, copper, nickel, stainless steel, copper-nickel alloy can be preferably used, and in particular, gold, silver, aluminum, copper, A nickel or copper-nickel alloy can be preferably used.
- the electromagnetic conducting or absorbing plastic material includes, for example, a polyacetylene conductive polymer, a polypyrrole conductive polymer, a polyacene conductive polymer, a polyphenylene conductive polymer, a polyarine conductive polymer, Examples thereof include conductive plastic materials such as conductive polymers such as polythiophene-based conductive polymers.
- the magnetic material is not particularly limited, and examples thereof include soft magnetic powder, various ferrites, and zinc oxide whiskers.
- a ferromagnetic material exhibiting ferrous magnetism or ferrimagnetism is suitable.
- magnetic materials for example, high permeability ferrite 0, so-called “soft ferrite”; V, so-called “Mn ferrite”, so-called “Ni ferrite”, V ⁇ so-called “Zn ferrite”, So-called “Mn—Zn ferrite”, so-called “Ni—Zn ferrite”, etc., pure iron, iron containing silicon atoms (so-called “Kai steel”), nickel-iron alloys (so-called “permalloy”; nickel manganese Iron alloy, nickel molybdenum, copper-iron-iron alloy, nickel-molybdenum, manganese-iron-iron alloy, etc.), iron-cobalt alloy, amorph High-permeability metal material, iron aluminum key
- a method for coating the electromagnetic conducting or absorbing material on the fiber material is not particularly limited, and a known coating method is appropriately selected according to the type of the conducting or absorbing electromagnetic material. Can be used.
- the method for forming the electromagnetic conducting / absorbing material-coated fiber is preferably a coating method by vapor deposition of a metal material or a coating method by metal coating.
- the conducting or absorbing material may be the same conducting or absorbing material as the conducting or absorbing material in the conducting or absorbing material-coated fiber.
- metal materials, electromagnetic conducting or absorbing plastic materials, magnetic materials, etc. can be used, and metal materials (especially gold, silver, aluminum, copper, nickel, copper-nickel alloy) can be suitably used.
- the method of impregnating the electromagnetic wave conductive absorbent material into the fiber material with the electromagnetic wave conductive absorbent material-impregnated fiber is not particularly limited, and a known impregnation method is appropriately selected depending on the type of the electromagnetic conductive absorbent material. You can select and use. For example, when the electromagnetic conducting or absorbing material is a metal material, an impregnation method in which a fiber material is immersed in a metal material is suitable as a method for forming the electromagnetic conducting or absorbing material impregnated fiber.
- the conducting or absorbing material for electromagnetic conducting may be the same conducting electromagnetic conducting as the conducting or absorbing material for electromagnetic conducting or absorbing material-coated fibers.
- Absorptive materials for example, metal materials, electromagnetic conducting and absorbing plastic materials and magnetic materials
- metal materials especially gold, silver, aluminum, copper, nickel, copper-nickel alloy
- Electromagnetic conducting and absorbing materials such as metal materials are powder, film, foil
- the material of the fiber material in the electromagnetic conducting or absorbing material-containing material fiber is a plastic material (for example, polyamide, polyester, polyacrylonitrile, acrylic resin, polybutyl alcohol, polyethylene, polyimide, polyolefin resin, silicone). And the like are preferably used.
- the method for incorporating the electromagnetic conducting or absorbing material into the fiber material is not particularly limited, and a known containing method is appropriately selected according to the type of the electromagnetic conducting or absorbing material. Can be used. For example, there is a method in which a fiber material and an electromagnetic conducting / absorbing material are mixed by kneading or the like and then fiberized to contain the electromagnetic conducting / absorbing material in the fiber material.
- the electromagnetic conducting or absorbing fiber at least one type of fiber selected from an electromagnetic conducting or absorbing material-coated fiber, an electromagnetic conducting or absorbing material-impregnated fiber, and an electromagnetic conducting or absorbing material fiber is selected. It can be used suitably. Therefore, the electromagnetic conducting / absorbing fiber convex structure is preferably composed of at least one kind of fiber selected from an electromagnetic conducting / absorbing material-coated fiber, an electromagnetic conducting / absorbing material-impregnated fiber, and an electromagnetic conducting / absorbing material fiber fiber. It can be done.
- an electromagnetic conducting or absorbing fiber or fiber material
- a short fiber can be suitably used.
- the electromagnetic conducting or absorbing fiber (or fiber material) desirably has a length of about 0.1 to 5 mm (preferably 0.3 to 5 mm, more preferably 0.3 to 2 mm). If the length of the electromagnetic conducting or absorbing fiber is too short, the production becomes difficult and expensive, which is not preferable from the viewpoint of cost.
- the thickness of the electromagnetic conducting or absorbing fiber (or fiber material) is not particularly limited.
- the thickness is 0.1 to 20 denier (preferably 0.5 to 15 denier, more preferably 1). It can be selected from a range of about ⁇ 6 denier). If the thickness of the electromagnetic conducting or absorbing fiber is too thick, for example, the flexibility and flexibility of the structure are lowered. On the other hand, if the thickness of the electromagnetic conducting / absorbing fiber is too thin, the handleability deteriorates, which is not preferable.
- it can be specified or set by the thickness and diameter of the electromagnetic conducting or absorbing fiber (or fiber material).
- the diameter of the electromagnetic conducting or absorbing fiber is selected, for example, from the range of 5 to: LOO m (preferably 10 to 50 ⁇ m, more preferably 15 to 45 ⁇ m).
- the electromagnetic conducting or absorbing fiber plural or two or more kinds of electromagnetic conducting or absorbing fibers or plural or two or more kinds of electromagnetic conducting or absorbing materials are used. In particular, it is preferable to use a plurality of or two or more kinds of electromagnetic conducting or absorbing fibers.
- the electromagnetic conducting or absorbing fibers are used as the electromagnetic conducting or absorbing fibers, the plural or two or more kinds of electromagnetic conducting or absorbing fibers are used as separate yarns. It may be used as a single thread. That is, the electromagnetic conducting or absorbing fiber convex structure portion may be composed of plural or two or more kinds of yarns of two or more kinds of electromagnetic conducting or absorbing fibers.
- It may be composed of a plurality of types or two or more types of twisted yarn.
- electromagnetic conducting / absorbing fibers When plural or two or more kinds of electromagnetic conducting / absorbing fibers are used as the electromagnetic conducting / absorbing fibers, structures corresponding to a wide range of electromagnetic waves can be obtained as shown below.
- the method for forming the electromagnetic conducting or absorbing fiber convex structure portion is not particularly limited, but as shown below, a flocking processing method (in particular, An electrostatic flocking method) can be suitably used.
- the electrostatic flocking processing method may be any of an up method, a down method, and a side method.
- the substrate may have either a single layer form or a laminated form.
- a pressure-sensitive adhesive layer, an adhesive layer or a polymer layer can be suitably used as the substrate, and in particular, the pressure-sensitive adhesive layer or the adhesive is used. Layers (sometimes referred to as “adhesive layers”) are preferred.
- FIG. 3 is a schematic sectional view showing an example of the structure of the present invention.
- 3a is a structure
- 3al is an adhesive layer (adhesive layer or adhesive layer)
- 3a2 is a substrate
- 3a3 is an electromagnetic conducting or absorbing fiber raised portion
- 3a 4 is a fiber protective material
- 3b is Structure
- 3bl is an adhesive layer
- 3b2 is a release liner
- 3b3 is an electromagnetically conductive absorbent fiber raised part
- 3b4 is a fiber protective material
- 3c is a structure
- 3cl is a polymer layer
- 3c2 is an electromagnetically conductive absorbent fiber raised Part
- 3c3 is a fiber protective material.
- an adhesive layer 3al as a substrate is formed on one side of a substrate 3a2 as a support, and a partial surface is formed on the surface of the adhesive layer 3al.
- the electromagnetic conducting or absorbing fiber raised portion 3a3 is formed as the electromagnetic conducting or absorbing fiber convex structure portion, and the electromagnetic conducting or absorbing fiber raised portion 3a3 on the surface of the adhesive layer 3al is formed.
- the part (or part) is provided with a fiber protective material 3a4.
- an adhesive layer 3b 1 as a substrate is formed on one side of a release liner 3b2 as a support, and partially on the surface of the adhesive layer 3bl.
- the electromagnetic conducting or absorbing fiber raised portion 3b3 is formed as the electromagnetic conducting or absorbing fiber convex structure portion, and the electromagnetic conducting or absorbing fiber raised portion 3b3 on the surface of the adhesive layer 3b 1 is formed.
- the fiber protective material 3b4 is provided.
- an electromagnetic conducting / absorbing fiber raised portion 3c2 is partially formed on the surface of the polymer layer 3cl as a substrate as an electromagnetic conducting / absorbing fiber convex structure portion,
- an electromagnetic wave conducting / absorbing fiber raised portion 3c2 is formed on the surface of the polymer layer 3cl, and a fiber protective material 3c3 is provided at a small flange portion.
- the pressure-sensitive adhesive layer or adhesive layer (adhesive layer) as a substrate is not particularly limited, and examples thereof include rubber-based pressure-sensitive adhesives, acrylic pressure-sensitive adhesives, Known adhesives such as ester adhesives, urethane adhesives, polyamide adhesives, epoxy adhesives, vinyl alkyl ether adhesives, silicone adhesives, and fluorine adhesives can be used. Further, the adhesive may be a hot melt adhesive.
- the adhesive constituting the adhesive layer is not particularly limited, and examples thereof include rubber adhesives, acrylic adhesives, polyester adhesives, urethane adhesives, polyamide adhesives, epoxy adhesives, Known adhesives such as a bull alkyl ether adhesive, a silicone adhesive, and a fluorine adhesive can be used.
- the adhesive may be a heat sensitive adhesive. Adhesives and adhesives can be used alone or in combination of two or more.
- the pressure-sensitive adhesive or adhesive may be a pressure-sensitive adhesive or adhesive in a misaligned form such as an emmanent region, a solvent, an oligomer, or a solid.
- the pressure-sensitive adhesive or adhesive includes a crosslinking agent (eg, polyisocyanate) depending on the type of the pressure-sensitive adhesive or the adhesive.
- crosslinkers eg, polyisocyanate
- tackifiers eg, rosin derivative resin, polyterpene resin, petroleum resin, phenol resin
- plasticizers eg, rosin derivative resin, polyterpene resin, petroleum resin, phenol resin
- fillers e.g, anti-aging agents
- crosslinking when forming the pressure-sensitive adhesive layer or adhesive layer, heat crosslinking method by heating, ultraviolet crosslinking method by ultraviolet irradiation (UV crosslinking method), electron beam crosslinking method by electron beam irradiation (EB crosslinking method) And a known crosslinking method such as a natural curing method that naturally cures at room temperature or the like.
- UV crosslinking method ultraviolet crosslinking method
- EB crosslinking method electron beam crosslinking method by electron beam irradiation
- a known crosslinking method such as a natural curing method that naturally cures at room temperature or the like.
- a pressure-sensitive adhesive layer is suitable as the adhesive layer.
- a rubber-based pressure-sensitive adhesive or an acrylic pressure-sensitive adhesive can be suitably used.
- a known pressure-sensitive adhesive layer formation method or a known adhesive layer formation method for example, a coating formation method, a transfer formation method, etc.
- the structure can be appropriately selected according to the type, shape and size of the support on which the adhesive layer is formed.
- the method for forming the pressure-sensitive adhesive layer is as follows. A method of applying (coating method), a method of applying an adhesive on a release film such as a release liner to form an adhesive layer, and then transferring the adhesive layer onto a substrate (transfer) Copying method).
- a method of forming an adhesive layer is a method of applying an adhesive on the release surface of the release liner ( Application method).
- Application method a method of applying an adhesive to a predetermined surface of the base material
- the polymer component for constituting the polymer layer as the substrate is not particularly limited, and a known polymer component (for example, thermoplastic resin, thermosetting resin, ultraviolet curable resin, etc.).
- a known polymer component for example, thermoplastic resin, thermosetting resin, ultraviolet curable resin, etc.
- one or more of rubber components and elastomer components can be appropriately selected and used.
- the resin component includes, for example, an acrylic resin, a styrene resin, a polyester resin, a polyolefin resin, polyvinyl chloride, and vinyl acetate.
- Resin polyamide resin, polyimide resin, urethane resin, epoxy resin, fluorine resin, silicone resin, polybutyl alcohol, polycarbonate, polyacetal, polyetherimide, polyamideimide, polyester
- imide polyphenylene ether, polyphenylene sulfide, polyethersulfone, polyetheretherketone, polyetherketone, polyarylate, polyarylene and polysulfone.
- the rubber component include natural rubber and synthetic rubber (polyisobutylene, polyisoprene rubber, chloroprene rubber, butyl rubber, nitrile butyl rubber, etc.).
- the elastomer component may be, for example, an olefin-based thermoplastic elastomer, a styrene-based thermoplastic elastomer, a polyester-based thermoplastic elastomer, a polyamide-based thermoplastic elastomer, a polyurethane-based thermoplastic elastomer, or an acrylic-based thermoplastic elastomer.
- Various thermoplastic elastomers such as plastic elastomers are listed.
- the thickness of the substrate is not particularly limited, and for example, a range force of about 1 to 1000 m (preferably 10 to 500 ⁇ m) can be selected. .
- the substrate may be partially formed with a recess.
- a concave portion may be a depressed portion, but among the hole portions that are preferably hole portions (through hole portions), a perforated portion is particularly preferable.
- the shape of the entire recess, the shape of the opening on the substrate surface of each recess, the opening on the substrate surface of the recess The total area of each, the area of the opening on the substrate surface of each recess, and the like can correspond to the electromagnetic conducting or absorbing fiber convex structure.
- the depth is not particularly limited, and a depth range corresponding to 1% or more (for example, 1 to 99%, preferably 30 to 90%) of the thickness of the substrate.
- the force can also be appropriately selected.
- the pressure-sensitive adhesive layer as the substrate can be formed on the release liner, and in this case, the depressed portion as the concave portion can be formed on at least one surface of the pressure-sensitive adhesive layer. , Preferably, it is the surface of one side of an adhesive layer.
- a pressure-sensitive adhesive layer as a substrate can be formed on both surfaces of a base material as a support, and in this case, a recess (a depressed portion or a hole) is formed on at least one of the pressure-sensitive adhesive layers. It can be formed on the surface, preferably the surface of the pressure-sensitive adhesive layer on one side.
- the recess is a hole
- a well-known or commonly used hole forming machine in particular, a convex structure of various shapes (protrusion structure) and the convex structure Punching method using a punching machine having an opposing concave structure
- punching method using heat or light for example, punching with a thermal head, halogen lamp, xenon lamp, flash lamp, laser beam, etc.
- mold Examples thereof include a molding method using a mold (for example, a mold having a convex portion).
- the formation method similar to a hole part can be employ
- the substrate (such as an adhesive layer or a polymer layer) preferably has electromagnetic conducting or absorbing properties from the viewpoint of further improving the electromagnetic conducting or absorbing properties of the structure.
- a substrate having electromagnetic conducting or absorbing properties can be formed from a composition containing an electromagnetic conducting or absorbing material (such as an adhesive composition, an adhesive composition, or a polymer composition).
- the electromagnetic conducting / absorbing material used in the substrate is not particularly limited. For example, one or two electromagnetic conducting / absorbing materials such as metal materials, electromagnetic conducting / absorbing plastic materials (conductive plastic materials, etc.) and magnetic materials can be used. More than one species can be used in combination.
- the metal material, electromagnetic conducting or absorbing plastic material, or magnetic material includes the above exemplified metallic material, electromagnetic conducting or absorbing plastic material or magnetic material (for example, the electromagnetic conducting or absorbing fiber convex structure portion is configured.
- Conductive electromagnetic conducting fibers such as metal materials, electromagnetic conducting / absorbing plastic materials and magnetic materials) Etc.
- the electromagnetic conducting or absorbing material such as a metal material, an electromagnetic conducting or absorbing plastic material or a magnetic material may have any form such as powder, film, foil or thin layer.
- a substrate containing an electromagnetic conducting or absorbing material is a pressure-sensitive adhesive constituting the pressure-sensitive adhesive layer, an adhesive or polymer constituting the adhesive layer. It can be prepared by mixing the polymer component constituting the layer and the electromagnetic conducting or absorbing material.
- the content ratio of the electromagnetic conducting / absorbing material is not particularly limited, and is appropriately selected according to the tackiness or adhesiveness of the pressure-sensitive adhesive or adhesive, the electromagnetic conducting / absorbing property of the adhesive layer or polymer layer, and the like. For example, it is preferably 3 to 98% by weight (especially 5 to 95% by weight) based on the total solid content in the pressure-sensitive adhesive composition, adhesive composition or polymer composition.
- the content of the electromagnetic conducting / absorbing material is too small, the electromagnetic conducting / absorbing property of the substrate is lowered. On the other hand, if the content is too large, the adhesiveness or adhesiveness is lowered when the substrate is an adhesive layer. To do.
- the substrate in particular, the adhesive layer as the substrate
- the substrate may be formed on at least one surface of the support.
- the electromagnetic conducting or absorbing fiber convex structure portion and the fiber protective material may be formed only on the substrate formed on one surface of the support.
- the electromagnetic wave conductive absorbent fiber convex structure portion and the fiber protective material may be formed on the base formed on both surfaces of the support.
- Such a support is not particularly limited, and can be appropriately selected and used depending on the type of structure.
- the shape of the support may have any shape. Examples of the shape of the support include a spherical shape, a cylindrical shape, a polyhedral shape, a polygonal pyramid shape, a conical shape, a plate shape, and a sheet shape.
- the material of the support is not particularly limited, and any material may be used, for example, plastic materials, metal materials, fiber materials, paper materials, etc. These materials are only one kind. Or two or more may be used in combination.
- the support preferably has a sheet-like form.
- the structure has a sheet-like structure having a sheet-like form. It can be used as a structure.
- a sheet-like form for example, when the substrate is an adhesive layer, a sheet-like substrate such as an adhesive tape or a substrate for a sheet, an adhesive tape or a sheet A release liner can be used.
- the structure is formed of, for example, a pressure-sensitive adhesive tape or sheet in which one side or both sides of the substrate-attached type is an adhesive layer
- the support is a pressure-sensitive adhesive tape or sheet base material. Can be used.
- the support when the structure is formed of, for example, a baseless type double-sided pressure-sensitive adhesive tape or sheet, the support may be a pressure-sensitive adhesive tape or a sheet release liner (separator).
- the structure when one side or both sides of the structure force base material type is an adhesive layer and is formed of an adhesive tape or sheet, the structure may be, for example, a base material (adhesive tape). Or an adhesive layer is formed on one side or both sides of the base material for the sheet), and the electromagnetic conducting or absorbing fiber convex structure portion is formed on the surface of the adhesive layer or the concave wall surface formed on one side or both sides of the base material.
- the electromagnetic conducting or absorbing fiber convex structure portion is formed on the surface of the pressure-sensitive adhesive layer, and the fiber protective material is provided at the site.
- a release liner a pressure-sensitive adhesive tape or sheet release liner
- an electromagnetic conducting or absorbing fiber convex structure portion is formed on the surface of the adhesive layer or the wall surface of the concave portion, and an electromagnetic conducting or absorbing fiber convex structure portion is formed on the surface of the adhesive layer. It may have a configuration in which a fiber protective material is provided at the heel part.
- the release liner as the support supports the pressure-sensitive adhesive layer and protects the surface of the pressure-sensitive adhesive layer until the structure is used.
- a sheet-like base material can be suitably used as described above.
- an adhesive tape or a sheet substrate (substrate) is preferably used.
- base materials include plastic base materials such as plastic films and sheets; metal base materials such as metal foil and metal plates; paper (quality paper, Japanese paper, kraft paper, dalasin paper, synthetic paper, top paper Paper-based substrates such as coated paper; fiber-based substrates such as cloth, non-woven fabrics, and nets; rubber-based substrates such as rubber sheets; and appropriate thin leaves such as foams such as foam sheets Can be.
- the substrate may have a single layer form or a laminated form.
- a base material for example, a plastic base material and other base materials (metal base material, paper base material, fiber base material, etc.) formed by lamination or coextrusion, etc. It may be a three-layer composite).
- a foam when used as the substrate, it is possible to improve the followability to the uneven portions on the surface of the adherend.
- the substrate is preferably a plastic substrate such as a plastic film or sheet.
- plastic base material plastic material
- plastic material include polyethylene (PE), polypropylene (PP), ethylene-propylene copolymer, and ethylene monoacetate copolymer (EVA).
- Olefin-based resin with ⁇ -olefin as monomer component Polyester-based resin such as polyethylene terephthalate (PET), polyethylene naphthalate (PEN), polybutylene terephthalate (PBT); Polysalt resin (PVC); Examples thereof include vinyl acetate resins; polyphenylene sulfide (PPS); amide resins such as polyamide (nylon) and wholly aromatic polyamide (aramide); polyimide resins; polyether ether ketone (PEEK).
- the plastic material of the plastic base material may be an electromagnetic conducting or absorbing plastic material (such as a conductive plastic material).
- the conductive plastic material include the conductive polymer exemplified above the electromagnetic conducting or absorbing fiber.
- Plastic materials may be used alone or in a mixed state in which two or more kinds are combined.
- the plastic film sheet may be an unstretched type or a uniaxially or biaxially stretched type.
- examples of the metal material for forming the metal-based base material include the metal materials exemplified above in addition to the above-mentioned electromagnetic conducting or absorbing fiber. Metal materials can be used alone or in combination of two or more.
- the substrate has a property of conducting or absorbing electromagnetic waves (sometimes referred to as "electromagnetic conducting or absorbing substrate").
- the electromagnetic conducting or absorbing base material is not particularly limited as long as it is a base material capable of exhibiting electromagnetic conducting or absorbing properties.
- a base material made of an electromagnetic conducting or absorbing material, an electromagnetic conducting or absorbing material on the surface or inside Contained in Examples include base materials.
- the electromagnetic conducting or absorbing base material is not particularly limited as a base material made of an electromagnetic conducting or absorbing material.
- a metal material an electromagnetic conducting or absorbing plastic material (conductive 1 type, or a combination of two or more types of conductive materials that absorb and absorb electromagnetic waves such as magnetic plastic materials) and magnetic materials.
- an electromagnetic conducting or absorbing plastic material or a magnetic material contained in the electromagnetic conducting or absorbing fiber, the pressure-sensitive adhesive composition or the adhesive composition constituting the convex structure of the electromagnetic conducting or absorbing fiber.
- the electromagnetic wave conducting / absorbing material to be used include metal materials, electromagnetic conducting / absorbing plastic materials, and magnetic materials.
- the base material containing the electromagnetic conducting or absorbing material on the surface or inside especially if the electromagnetic conducting or absorbing material is used on the surface or inside of various substrates! Not limited.
- a layer made of an electromagnetic conducting or absorbing material-containing composition containing an electromagnetic conducting or absorbing material (sometimes referred to as an "electromagnetic conducting or absorbing material-containing layer"). )
- the electromagnetic conducting or absorbing material containing layer may be formed on at least one surface of the base material.
- the thickness of the electromagnetic wave conductive absorbent material-containing layer is not particularly limited, and for example, a range force of 0.1 ⁇ m or more (for example, 0 .: Lm to: Lmm) can be appropriately selected.
- the conductive absorbent material-containing layer may be a thin layer (for example, a thin film layer having a thickness of about 0.1 to 30 m). Therefore, as a substrate having an electromagnetic conducting / absorbing material-containing layer on the surface, it has electromagnetic conducting / absorbing property!
- non-electromagnetic conducting / absorbing substrate (sometimes referred to as “non-electromagnetic conducting / absorbing substrate”) It may be a base material having a structure in which a thin electromagnetic conducting or absorbing material-containing layer is formed thereon, a non-electromagnetic conducting or absorbing base material, an electromagnetic conducting or absorbing material containing layer, It may be a base material having a laminated structure.
- the conducting or absorbing material may contain a mixed component (sub-component Component).
- the electromagnetic conducting or absorbing material is not particularly limited.
- a metal material, an electromagnetic conducting or absorbing plastic material (conductive Plastic materials, etc.) and magnetic materials can be used. Therefore, the electromagnetic conducting or absorbing material-containing layer may be a metal material layer such as a metal foil or a metal plate, an electromagnetic conducting or absorbing plastic material layer such as an electromagnetic conducting or absorbing plastic film or sheet, or a magnetic material layer. There may be.
- Examples of the metal material for forming the electromagnetic conducting or absorbing material-containing layer include the metallic materials exemplified in the electromagnetic conducting or absorbing fiber constituting the electromagnetic conducting or absorbing fiber convex structure.
- Examples of the electromagnetic conducting / absorbing plastic material include the electromagnetic conducting / absorbing plastic material exemplified in the electromagnetic conducting / absorbing fiber constituting the convex structure of the electromagnetic conducting / absorbing fiber.
- examples of the magnetic material include the magnetic materials exemplified in the electromagnetic conducting or absorbing fiber constituting the electromagnetic conducting or absorbing fiber convex structure.
- the electromagnetic conducting or absorbing material can be used alone or in combination of two or more.
- the electromagnetic conducting / absorbing material such as metal material, electromagnetic conducting / absorbing plastic material and magnetic material may have any form such as powder, film, foil or thin layer.
- the non-electromagnetic conducting / absorbing substrate coated or laminated with the electromagnetic conducting / absorbing material is not particularly limited as long as the substrate does not have electromagnetic conducting / absorbing properties.
- Non-plastic plastic substrate polyolefin resin, polyester resin, polychlorinated butyl, acetate resin, polyphenylene sulfide, amide resin, polyimide resin, polyether ether
- Non-electromagnetic conductive materials such as ketones and other plastic base materials that do not have electromagnetic conducting / absorbing properties
- non-electromagnetic conducting materials such as fine paper, Japanese paper, kraft paper, dalasin paper, Synthetic paper, top-coated paper, etc.
- fiber base materials that have electromagnetic conducting or absorbing properties, such as non-woven fabrics that do not have electromagnetic conducting or absorbing properties, and the like can be used.
- the non-electromagnetic conducting or absorbing base material may have any form of a single layer or a laminate.
- the method for forming the electromagnetic conducting or absorbing material-containing layer on the surface of the substrate having the electromagnetic conducting or absorbing material-containing layer on the surface is not particularly limited. Depending on the type of conductive absorbent material and the thickness of the layer containing the electromagnetic conductive absorbent material, publicly known methods (e.g. metal vapor deposition method, metal plating method, lamination method by adhesion, impregnation method) , Coating method, etc.) can be selected and used as appropriate.
- publicly known methods e.g. metal vapor deposition method, metal plating method, lamination method by adhesion, impregnation method) , Coating method, etc.
- the electromagnetic conducting or absorbing material is a metal material and the electromagnetic conducting or absorbing material-containing layer is a thin electromagnetic conducting or absorbing material containing layer, depending on the coating method by vapor deposition of the metal material or the metal material
- the electromagnetic conducting or absorbing material-containing layer can be formed on the surface of the substrate by using a coating method or the like. Therefore, as a base material having an electromagnetic conducting or absorbing material-containing layer on the surface, a plastic film or sheet (metal-deposited plastic film or sheet) having a metal material deposited on the surface, or a plastic having a metal material strength S on the surface. It may be a film or sheet (metal-plated plastic film or sheet).
- examples of the substrate containing an electromagnetic conducting or absorbing material include a substrate formed of an electromagnetic conducting or absorbing material-containing composition containing an electromagnetic conducting or absorbing material.
- a substrate may be a substrate in which an electromagnetic conducting or absorbing material is formed as a main material constituting the substrate (sometimes referred to as an “electromagnetic conducting or absorbing material-based substrate”).
- the substrate may be a substrate formed of a mixed material including a main material constituting the substrate and an electromagnetic conducting or absorbing material (sometimes referred to as “electromagnetic conducting or absorbing material-containing substrate”).
- Electromagnetic conducting / absorbing material base materials include metal base materials such as metal foils and metal plates; electromagnetic conducting / absorbing plastic base materials such as films or sheets made of electromagnetic conducting / absorbing plastic materials; Fabrics made of absorbent fibers (cloth, etc.) Non-woven fabrics, etc. Electromagnetic conducting base materials (electromagnetic conducting / absorbing fiber base materials); Magnetic material base materials, such as magnetic material plates Etc. Examples of the metal material for forming the metal base material include metal materials exemplified in the electromagnetic conducting or absorbing fiber constituting the convex structure of the electromagnetic conducting or absorbing fiber.
- the electromagnetic conducting / absorbing plastic material for forming the electromagnetic conducting / absorbing plastic base material the conducting / absorbing electromagnetic wave exemplified in the conducting electromagnetic absorbing / absorbing fiber constituting the electromagnetic conducting / absorbing fiber convex structure portion, etc.
- Plastic materials as the fiber in the electromagnetic conducting or absorbing fiber base material, the electromagnetic conducting or absorbing fiber (carbon-based carbon) exemplified in the electromagnetic conducting or absorbing fiber constituting the convex structure of the electromagnetic conducting or absorbing fiber may be used. Fiber, fiber made of conductive polymer, metal fiber, etc.) can be used.
- the magnetic properties of the magnetic material base material Examples of the material include magnetic materials exemplified in the electromagnetic conducting or absorbing fiber constituting the convex structure of the electromagnetic conducting or absorbing fiber.
- the main material constituting the base material of the electromagnetic conducting or absorbing material is a plastic material that does not have electromagnetic conducting or absorbing properties (polyolefin-based resin, polyester-based material).
- Non-electromagnetic conducting / absorbing resins such as coagulants, polychlorinated burs, acetic acid bulls, polyphenols, amides, polyimides, polyether ether ketones
- Paper materials that do not have electromagnetic properties paper materials for forming paper-based substrates that do not have electromagnetic conductivity absorption such as fine paper, Japanese paper, craft paper, dalasin paper, synthetic paper, top coat paper, etc.
- Fiber material that does not have electromagnetic conducting or absorbing properties having electromagnetic conducting or absorbing properties!
- Non-electromagnetic conducting or absorbing material A wave conducting or absorbing properties! ⁇ a ⁇ materials (hereinafter sometimes referred to as "non-electromagnetic conducting or absorbing material”), and the like.
- Non-electromagnetic conducting and absorbing materials can be used alone or in combination of two or more.
- Examples of the electromagnetic conducting / absorbing material in the electromagnetic conducting / absorbing / absorbing material-containing substrate include the metal materials exemplified in the electromagnetic conducting / absorbing fibers forming the electromagnetic conducting / absorbing fiber convex structure, and the electromagnetic conducting / absorbing fiber convex.
- the electromagnetic conducting or absorbing plastic material exemplified for the electromagnetic conducting or absorbing fiber constituting the cylindrical structure portion, or for the electromagnetic conducting or absorbing fiber constituting the electromagnetic conducting or absorbing fiber convex structure portion, etc.
- examples thereof include magnetic materials.
- the electromagnetic wave conductive absorption material when the main material constituting the base material constituting the base material is a fiber material that does not have the electromagnetic wave conductive absorption property, the electromagnetic wave conductive absorption material May be contained in a form impregnated in a fiber or mixed in a fiber material forming a fiber.
- the method for incorporating the electromagnetic conducting or absorbing material into the base material is not particularly limited.
- the base material containing the electromagnetic conducting / absorbing material is an electromagnetic conducting / absorbing material base material, depending on the type of the electromagnetic conducting / absorbing material base material, a known metal foil forming method, Using a known plastic film or sheet forming method, a known fiber forming method, etc.
- a conductive absorbent material-based substrate can be formed.
- the base material containing the electromagnetic conducting / absorbing material is an electromagnetic conducting / absorbing material-containing base material, depending on the main material constituting the base material, the type of the electromagnetic conducting / absorbing material, etc., for example, After the main material constituting the base material and the electromagnetic conducting or absorbing material are mixed, the electromagnetic conducting or absorbing material-containing base is obtained using a known metal foil forming method or a known plastic film or sheet forming method. A material can be formed.
- the base material is optionally provided with an inorganic filler (for example, titanium oxide, zinc oxide, etc.), an anti-aging agent (for example, an amine type anti-aging agent, a quinoline type anti-aging agent, a hydroquinone type).
- an inorganic filler for example, titanium oxide, zinc oxide, etc.
- an anti-aging agent for example, an amine type anti-aging agent, a quinoline type anti-aging agent, a hydroquinone type.
- Anti-aging agents phenolic anti-aging agents, phosphorus-based anti-aging agents, phosphite-based anti-aging agents, etc.), antioxidants, UV absorbers (for example, salicylic acid derivatives, benzophenone UV absorbers, benzoic acids)
- UV absorbers for example, salicylic acid derivatives, benzophenone UV absorbers, benzoic acids
- Various additives such as triazole-based UV absorbers, hindered amine-based UV absorbers, lubricants, plasticizers, and colorants (for example, pigments, dyes, etc.) may be blended.
- an electromagnetic conducting or absorbing material may be mixed with the base material.
- the thickness of the substrate is not particularly limited, and for example, a range force of 10 ⁇ m to 20 mm, preferably 30 ⁇ m to 12 mm can be selected.
- Examples of the release liner (such as a pressure-sensitive adhesive tape or a release liner for a sheet) as a support include, in addition to a substrate having a release treatment layer with a release treatment agent on at least one surface, a known low-adhesive substrate, and the like. It is done.
- a release liner for example, a release liner in which a release treatment layer is formed on at least one surface of a release liner base material is suitable.
- As the release liner substrate various plastic-based substrate films (synthetic resin films), papers, etc., which are multilayered by laminating or coextrusion, etc. (2- to 3-layer composites) ) And the like.
- a known release treatment agent such as a silicone release treatment agent, a fluorine release treatment agent, or a long-chain alkyl release treatment agent is used. It can be formed by using alone or in combination of two or more.
- the release treatment layer can be formed by applying a release treatment agent to a predetermined surface (at least one surface) of the release liner substrate and then performing a heating step for drying, curing reaction, or the like.
- the thickness of the release liner, the thickness of the release liner substrate, the thickness of the release treatment layer and the like are not particularly limited, and are appropriately selected according to the shape of the electromagnetic conducting or absorbing fiber convex structure portion. be able to.
- a coating layer covering the electromagnetic conducting or absorbing fiber convex structure portion may be formed.
- the coating layer is a layer covering the electromagnetic conducting or absorbing fiber convex structure, and the coating layer suppresses or prevents the fibers of the electromagnetic conducting or absorbing fiber convex structure from losing the base force. It is possible to effectively increase the fiber retention of the electromagnetic conducting or absorbing fiber convex structure portion.
- the coating layer can improve properties such as impact resistance.
- Such a coating layer may be a layer that covers at least a part of the fiber in the electromagnetic conducting or absorbing fiber convex structure or the upper surface of the fiber in the electromagnetic conducting or absorbing fiber convex structure. It is preferable that it is a layer that covers!
- the coating layer is formed in contact with the electromagnetic conducting / absorbing fiber convex structure part and in contact with the electromagnetic conducting / absorbing fiber convex structure part. May be.
- the electromagnetic conducting or absorbing fiber convex structure is more than the surface of the substrate. It can have a structure formed on the fiber protective material having a thickness V and a thickness greater than the thickness of the portion located outside.
- FIG. 4 is a schematic sectional view showing an example of the structure of the present invention.
- 4 is a structure
- 41 is a substrate
- 42 is an electromagnetic conducting or absorbing fiber convex structure
- 43 is a fiber protective material
- 44 is a coating layer.
- the structure 4 has an electromagnetic conducting or absorbing fiber convex structure portion 42 and a fiber protective material 43 formed in a predetermined portion of a base body 41, and a covering layer 44 is formed on the fiber protective material 43.
- the upper surface of the fiber in the electromagnetic conducting or absorbing fiber convex structure portion 42 is covered with the coating layer 44.
- the coating material constituting the coating layer is not particularly limited and may be a known polymer component (for example, And a coating composition containing, as a main component, a resin component such as a thermoplastic resin, a thermosetting resin, and an ultraviolet curable resin, as well as a rubber component and an elastomer component.
- a resin component such as a thermoplastic resin, a thermosetting resin, and an ultraviolet curable resin
- the same polymer component as the polymer component exemplified in the base for example, thermoplastic resin, thermosetting resin, ultraviolet curing
- a rosin component such as natural rosin, a rubber component, an elastomer component, etc.
- the coating layer may have a single layer form or a laminated form!
- the coating layer preferably has electromagnetic conducting or absorbing properties. If the coating layer also has electromagnetic conducting or absorbing properties, the electromagnetic conducting or absorbing properties of the structure can be further enhanced.
- the coating layer having electromagnetic conducting or absorbing properties can be formed from a coating material composition containing an electromagnetic conducting or absorbing material.
- the electromagnetic conducting or absorbing material used for the coating material is not particularly limited.
- the conducting or absorbing material such as a metal material, an electromagnetic conducting or absorbing plastic material (such as a conductive plastic material) or a magnetic material is used. 1 type or 2 types or more can be used in combination.
- examples of the metal material, the electromagnetic conducting or absorbing plastic material, and the magnetic material include the metal materials exemplified above, an electromagnetic conducting or absorbing plastic material, and a magnetic material (for example, the electromagnetic wave constituting the electromagnetic conducting or absorbing fiber convex structure portion).
- the coating composition containing the electromagnetic conducting or absorbing material can be prepared by mixing the coating material and the electromagnetic conducting or absorbing material.
- the content ratio of the electromagnetic conducting or absorbing material is not particularly limited, and can be appropriately selected according to the type of polymer component of the coating material, the electromagnetic conducting or absorbing property of the coating layer, and the like. For example, it is preferably 3 to 98% by weight (especially 5 to 95% by weight) based on the total solid content in the coating material composition. If the content of the electromagnetic conducting / absorbing material is too small, the electromagnetic conducting / absorbing property of the coating layer is lowered, whereas if it is excessive, it is difficult to form the coating layer.
- the covering layer is a layer covering the electromagnetic conducting or absorbing fiber convex structure portion, when forming the covering layer, the electromagnetic conducting or absorbing fiber convex structure portion and the fiber protection are previously provided. It is important that the material be formed on the substrate. Therefore, the coating layer can be formed after the electromagnetic conducting or absorbing fiber convex structure portion and the fiber protective material are formed on the substrate.
- a known forming method for example, a coating formation method, a dipping formation method, a spray formation method, etc.
- the form of the coating layer, the electromagnetic conducting or absorbing fiber convexity It can be appropriately selected according to the type and form of the shape structure part and the fiber protective material.
- the coating layer can be formed by applying the coating composition to the protective material.
- the thickness of the coating layer is not particularly limited, and depends on the type and form of the coating layer, the length of the exposed fiber in the electromagnetic conducting or absorbing fiber convex structure, the thickness of the fiber protective material, and the like. It can be set as appropriate.
- the thickness of the coating layer can be selected from, for example, a range force of 10 to 5000 m (preferably 30 to 3000 ⁇ m, more preferably 30 to 2000 ⁇ m).
- the coating layer may be a layer formed of an adhesive tape or a sheet.
- the coating layer may be formed by bonding an adhesive tape or sheet on the electromagnetic conducting or absorbing fiber convex structure.
- the pressure-sensitive adhesive tape or sheet for forming the coating layer may be a pressure-sensitive adhesive tape or sheet (substrate-less type pressure-sensitive adhesive tape or sheet) having a configuration formed only of the pressure-sensitive adhesive layer. It may be an adhesive tape or a sheet (a base-attached type adhesive tape or sheet) having a configuration in which an adhesive layer is formed on one or both sides of the material.
- the coating layer may be a layer formed of a laminate of the pressure-sensitive adhesive layer and the substrate, which may be a layer formed of only the pressure-sensitive adhesive layer.
- the coating layer formed of the adhesive tape or sheet can be formed by laminating an adhesive tape or sheet that is not applied to the coating material composition on the electromagnetic conducting or absorbing fiber convex structure.
- the coating layer is formed of a baseless-type adhesive tape or sheet, or a base-equipped adhesive tape or sheet
- the adhesive layer in each adhesive tape or sheet is subjected to electromagnetic conduction absorption.
- Pressure-sensitive adhesive layer non-electromagnetic conducting and absorbing pressure-sensitive adhesive layer
- it may be a deviation of the pressure-sensitive adhesive layer (electromagnetic-conductive-absorbing pressure-sensitive adhesive layer) having electromagnetic conducting or absorbing properties.
- examples of the pressure-sensitive adhesive composition for constituting the non-electromagnetic wave conductive absorbent pressure-sensitive adhesive layer in each pressure-sensitive adhesive tape or sheet include those exemplified in the section of the pressure-sensitive adhesive layer as the substrate. An adhesive composition etc. are mentioned.
- the pressure-sensitive adhesive composition for constituting the electromagnetic conducting or absorbing pressure-sensitive adhesive layer in each adhesive tape or sheet has electromagnetic conducting or absorbing properties in the section of the adhesive layer as the substrate.
- the pressure-sensitive adhesive composition constituting the adhesive layer include a pressure-sensitive adhesive composition containing the exemplified electromagnetic conducting or absorbing material.
- the base material in the pressure-sensitive adhesive tape or sheet is a base material that does not have electromagnetic conducting or absorbing properties (non-electromagnetic conducting or absorbing). May be a base material having electromagnetic conduction / absorption property (electromagnetic conduction / absorption base material).
- the non-electromagnetic conducting / absorbing substrate in the adhesive tape or sheet of the base type may be, for example, a plastic-based substrate having non-electromagnetic conducting or absorbing properties, or a non-electromagnetic conducting material.
- Examples thereof include paper-based substrates having conductive absorbency, and fiber-based substrates having non-electromagnetic conductive absorbency. Specific examples of these include substrates of substrates as supports in structures. Examples of the plastic-based substrate, paper-based substrate, and fiber-based substrate exemplified in the section.
- the electromagnetic conducting or absorbing base material in the adhesive tape or sheet of the base type those exemplified in the section of the base material as a support in the structure (constituted by an electromagnetic conducting or absorbing material) Base material, and a base material containing an electromagnetic conducting or absorbing material on the surface or inside).
- the adhesive tape or sheet for forming the coating layer includes, for example, a base material, an adhesive tape or sheet, a plastic film or sheet (polyester film or sheet, etc.).
- An adhesive tape or sheet using a base material, an adhesive tape or sheet using a nonwoven fabric as a base material, or an adhesive tape or sheet using a metal foil (such as an aluminum foil) as a base material can be used.
- acrylic pressure-sensitive adhesives and rubber-based pressure-sensitive adhesives are suitable as pressure-sensitive adhesives constituting the pressure-sensitive adhesive layer, and may contain an electromagnetic wave absorbing / absorbing material.
- the method of forming the adhesive tape or sheet for forming the coating layer is a known adhesive tape. Or the formation method power of a sheet
- the structure of the present invention is partially formed on the base in a form in which the electromagnetic conducting or absorbing fiber convex structure portion is located such that at least a part of the fiber is located outside the surface of the base.
- the surface of the substrate has a structure in which a fiber protective material is provided at least partially in a portion where the electromagnetic conducting or absorbing fiber convex structure portion is not formed.
- an appropriate layer may be provided at an appropriate site as long as the effects and actions of the present invention are not significantly impaired.
- examples of the structure of the structure of the present invention include the following structures (A) to (D).
- An adhesive layer or an adhesive layer (adhesive layer) as a substrate is formed on at least one surface (one side or both sides) of the substrate as a support for supporting the substrate, and the substrate At least one part (one side or both sides) of the adhesive layer of the electromagnetic conducting or absorbing fiber convex structure is located on the outside of the surface of the adhesive layer.
- An adhesive layer as a substrate is formed on one release surface of the release liner that supports the substrate, and the electromagnetic conducting or absorbing fiber convex structure portion is formed on the adhesive layer on one surface of the release liner. However, at least a part of the fiber is formed in a form located outside the surface of the adhesive layer, and a portion where the electromagnetic conducting or absorbing fiber convex structure portion is not formed on the surface of the substrate. At least partially provided with a fiber protective material (c) The substrate is not supported by the support, and at least one surface (one surface or both surfaces) of the pressure-sensitive adhesive layer or the polymer layer as the substrate has an electromagnetic conducting or absorbing fiber convex structure portion at least of the fibers. A part of the fiber is formed in a form located outside the surface of the polymer layer, and at least part of the fiber is formed on the surface of the polymer layer where the electromagnetic conducting or absorbing fiber convex structure is not formed. Configuration with protective material
- the electromagnetic conducting or absorbing fiber convex structure portion is covered with a coating layer [that is, the substrate is supported by a support (base Material, release liner, etc.) and at least one side (one side or both sides) of the adhesive layer or polymer layer as a substrate has an electromagnetic conducting or absorbing fiber convex structure portion of the fiber.
- At least a part of the adhesive layer or the polymer layer is formed outside the surface of the adhesive layer or polymer layer, and the electromagnetic conducting or absorbing fiber convex structure on the surface of the adhesive layer or polymer layer A configuration in which a fiber protective material is provided at least partially on a portion that is not formed, and the electromagnetic conducting or absorbing fiber convex structure is covered with a coating layer]
- a structure having a configuration in which at least two types selected from the structures having the configurations (A) to (D) are stacked in layers can be used.
- the electromagnetic conducting or absorbing fiber convex structures formed on both surfaces of the substrate may be the same electromagnetic conducting or absorbing fiber convex structures, which may be different electromagnetic conducting or absorbing fiber convex structures.
- the coating layers covering the electromagnetic conducting or absorbing fiber convex structures may be the same coating layer or different coating layers.
- the adhesive layer formed on both surfaces of the base material may be the same adhesive layer or different adhesive layers.
- the other surface of the structure is wholly or partially (for example, at least any one of them). Only at one end) may be an adhesive surface or an adhesive surface.
- the adhesive surface or adhesive surface is an adhesive surface or an adhesive layer having an electromagnetic wave conductive absorbability or an adhesive layer.
- the surface of the coating layer is entirely or partially (for example, at least one of the surfaces). It may be an adhesive surface or an adhesive surface.
- the adhesive surface or the adhesive surface is a pressure-sensitive adhesive layer having electromagnetic conducting or absorbing properties or The adhesive surface or adhesive surface due to the adhesive layer may have electromagnetic wave conduction absorption, and the adhesive surface or adhesive surface due to the adhesive layer or adhesive layer may be shifted.
- Such a pressure-sensitive adhesive surface or adhesive surface can be formed using, for example, a method using a known pressure-sensitive adhesive or adhesive, a method using a known double-sided pressure-sensitive adhesive tape, or the like. Therefore, when the surface of the structure is an adhesive surface or an adhesive surface, a method using a support (base material) in which the surface exposed to the outside is an adhesive surface or an adhesive surface is exposed to the outside in advance. The surface on the side becomes an adhesive surface or an adhesive surface. In addition, a method of applying an adhesive or an adhesive to the surface of the support (base material), the surface exposed to the outside is an adhesive surface or an adhesive surface.
- a double-sided adhesive tape or sheet (such as a substrate-less type double-sided adhesive tape or sheet, or a substrate-attached type double-sided adhesive tape or sheet) is affixed to the surface of the support (base material).
- a method of using a pressure-sensitive adhesive tape or sheet in which the surface exposed to the outside is an adhesive surface or an adhesive surface in advance, a coating layer whose surface exposed to the outside is not an adhesive surface or an adhesive surface A method of applying a pressure-sensitive adhesive or adhesive to the surface of the material, exposed outside Double-sided adhesive tape or sheet (substrate-less double-sided adhesive tape or sheet, or double-sided adhesive tape with substrate) on the surface of the coating layer where the surface to be coated is not an adhesive surface or adhesive surface
- a structure having a V surface that is an adhesive surface or an adhesive surface can be produced by a method of attaching a sheet or the like.
- the electromagnetic conducting or absorbing fiber convex structure is covered with a coating layer, and the coating layer is an insulating layer (for example, a non-conductive pressure-sensitive adhesive layer or adhesive that becomes an adhesive surface or an adhesive surface). Even if it includes a non-conductive member such as a layer) or becomes an insulating layer, the decrease in electromagnetic wave absorption / absorption is suppressed or prevented, and electromagnetic wave absorption / absorption (especially, electromagnetic wave conduction) (Electromagnetic wave shielding properties that absorb and shield) can do.
- the surface of the coating layer is preferably an insulating layer.
- Such an insulating layer uses, for example, a non-electromagnetic conducting / absorbing base material (particularly, a plastic base material that does not have electromagnetic conducting or absorbing properties) V, and a base-attached type adhesive tape or sheet.
- Method Affixing an adhesive tape or sheet with a base material that uses a non-electromagnetic conducting / absorbing base material (especially, a plastic base material that has electromagnetic conducting / absorbing properties) to the surface of the coating layer It can be formed by a method.
- the fiber protective material is an electromagnetic conducting or absorbing fiber convex structure on at least one surface of the substrate. If an electromagnetic conducting or absorbing fiber convex structure portion is formed on both surfaces of the base, the electromagnetic conducting or absorbing fiber convex structure is formed on both surfaces of the substrate. It is preferable.
- the electromagnetic conducting or absorbing property can be further enhanced.
- the thickness can be reduced or not used, the weight of the structure can be reduced, and the flexibility and followability of the structure (followability to adherend) can be improved. be able to.
- the form of the structure of the present invention is not particularly limited as long as it has the above-described configuration.
- the structure has, for example, a sheet-like form which may have various forms such as a spherical shape, a cylindrical shape, a polyhedral shape, a polygonal pyramid shape, a conical shape, a plate shape, and a sheet shape. It is preferable to do so. That is, the structure of the present invention is preferably a sheet-like structure having a sheet-like form.
- the sheet-like structure can have adhesiveness (particularly, adhesiveness) as well as electromagnetic conducting or absorbing properties.
- the sheet-like structure has adhesiveness
- the sheet-like structure has an electromagnetic conducting or absorbing fiber convex structure portion formed, and the surface of the pressure-sensitive adhesive layer on the side is an adhesive surface.
- it can have the form of an adhesive tape or sheet.
- the structure is a sheet-like structure
- the sheet-like structure can be produced in a form wound in a roll shape, a single layer or a laminated form of sheets.
- the electromagnetic conducting / absorbing fiber convex structure has excellent fiber overturning prevention! /
- a sheet-like structure in a state in which the overturning of the fibers of the electromagnetic conducting or absorbing fiber convex structure portion is suppressed or prevented can be obtained. Therefore, in the present invention, when the structure is a sheet-like structure, the product is produced as a roll-shaped structure (rolled body or stacked body), or a single-layer structure or a structure in which sheets are laminated. Can be converted.
- the electromagnetic conducting or absorbing fiber convex structure portion is formed on the base in such a form that at least a part of the fibers is located outside the surface of the base.
- the electromagnetic conducting / absorbing fiber convex structure portion has a structure in which the lateral overturning of the electromagnetic conducting / absorbing fiber convex structure portion is suppressed or prevented by a fiber protective material, and the electromagnetic conducting / absorbing fiber convex structure portion effectively Therefore, it can be used in various applications that utilize the electromagnetic conducting or absorbing property of the convex structure of the electromagnetic conducting or absorbing fiber. For example, it conducts electricity or conducts electricity, and conducts electromagnetic waves.
- the structure of the present invention includes a conductive material capable of conducting or conducting electricity, an electromagnetic wave conducting material capable of conducting electromagnetic waves, and an electromagnetic wave capable of absorbing electromagnetic waves.
- Absorbing material electromagnetic wave shielding material that can shield electromagnetic waves, anti-static material that can eliminate static electricity and prevent the generation of static electricity (or can prevent various troubles due to static electricity) It can be suitably used as an electrostatic failure prevention material, and in particular, can be suitably used as a conductive material, an electromagnetic wave absorbing material, or an electromagnetic wave shielding material.
- an electromagnetic shielding material for example, an electromagnetic shielding material for covering an electric wire (in particular, an electromagnetic shielding for covering an electric wire used in an automobile). Material), an electromagnetic shielding material for electronic parts, an electromagnetic shielding material for clothing, an electromagnetic shielding material for buildings, and the like.
- an electromagnetic wave shielding material for covering an electric wire an electromagnetic wave emitted from the electric wire is used. It can be used for the purpose of suppressing or preventing noise caused by electric power by shielding waves.
- the structure of the present invention is used as an electromagnetic shielding material for electronic parts, it shields electromagnetic waves from outside to electronic parts (for example, electronic circuit boards and electronic devices equipped with electronic circuit boards).
- the structure of the present invention can be used for the purpose of suppressing or preventing noise to the electronic component, or suppressing or preventing noise emitted from the electronic component by shielding electromagnetic waves from the electronic component.
- the structure of the present invention is used as an electromagnetic wave shielding material for clothing, the electromagnetic wave emitted from a computer, the electromagnetic wave emitted from a household electric cooking device, various medical devices (a device for all-purpose “MRI”) And other devices such as so-called “CT scanner” devices and so-called “X-ray contrast” devices)
- CT scanner so-called “CT scanner” devices and so-called “X-ray contrast” devices
- the structure of the present invention when used as an electromagnetic shielding material for a building, it shields electromagnetic waves emitted from the inside of the building to suppress or prevent information leakage, or from outside the building. Shielding electromagnetic waves to the inside of the building, for example, halls used for various purposes (movie theaters, concert halls, theater halls, museums, museums, wedding halls, halls for meetings and lectures, etc.) In buildings and some rooms in buildings (such as conference rooms), the prohibition of the use of so-called “mobile phones” and the prevention of adverse effects caused by FM waves (radio waves) (for example, prevention of malfunction of wireless microphones) Etc.) can be used for the purpose.
- FM waves radio waves
- the structure of the present invention when used as an electromagnetic wave absorber, it can be used, for example, as an electromagnetic wave absorber for buildings.
- an electromagnetic wave absorber for buildings for example, by sticking to a member partitioning a room (for example, a member such as a ceiling surface, a wall surface, a floor surface)
- a member partitioning a room for example, a member such as a ceiling surface, a wall surface, a floor surface
- a member partitioning a room for example, a member such as a ceiling surface, a wall surface, a floor surface
- various electronic devices installed in the room can be prevented from malfunctioning, and the electronic devices can be used efficiently. It can also be used for purposes such as actuating.
- the electromagnetic conducting or absorbing fiber forming the electromagnetic conducting or absorbing fiber convex structure portion plural kinds or two or more kinds of electromagnetic conducting or absorbing fibers (for example, plural kinds or the like) Or two or more types of electromagnetic conducting or absorbing material fibers or electromagnetic conducting or absorbing Using different metal materials as materials, multiple types or two or more types of electromagnetic conducting / absorbing materials coated fibers and electromagnetic conducting / absorbing fibers impregnated electromagnetic conducting / absorbing fibers), or one kind of electromagnetic conducting Even if it is an absorptive fiber, a plurality of or two or more types of electromagnetic conducting or absorbing materials are used!
- electromagnetic waves having a single peak wavelength it is possible to use not only electromagnetic waves with a single peak wavelength,
- the shielding function can be effectively exhibited even for electromagnetic waves having a peak wavelength of.
- various peak wavelengths can be obtained by combining a plurality of electromagnetic conducting or absorbing fibers and appropriately adjusting the ratio thereof. Shielding of electromagnetic waves can be effectively performed with a single structure (electromagnetic wave shielding material) against radiation sources such as objects and substances that emit a plurality of electromagnetic waves having a predetermined ratio.
- the structure of the present invention when used as an electromagnetic wave shielding material, it is not limited to the type of radiation source that emits electromagnetic waves, and can be easily configured with a configuration capable of exerting a shielding function for a wide range of radiation sources. Can be produced. Therefore, in the present invention, it is possible to easily obtain an electromagnetic wave shielding material capable of performing shielding by conducting or absorbing electromagnetic waves more effectively.
- the metal material strength in the electromagnetic conducting or absorbing material constituting the electromagnetic conducting or absorbing fiber for example, Nickel and gold have different types or wavelengths of electromagnetic waves that can be shielded by conducting or absorbing electromagnetic waves. Therefore, when the electromagnetic conducting or absorbing fiber convex structure is formed using, for example, nickel plated fiber and gold plated fiber as the electromagnetic conducting or absorbing fiber, the electromagnetic shielding material becomes an electromagnetic shielding by -kel The effect and the electromagnetic wave shielding effect of gold can be exhibited effectively, and the electromagnetic wave can be shielded more effectively.
- the electromagnetic conducting or absorbing fiber convex structure portion is formed in a form in which at least a part of the fiber is located outside the surface of the substrate! Regardless of the surface shape of the object that shields electromagnetic waves, etc., when used as a material, etc., a form in which at least part of the fibers of the electromagnetic conducting or absorbing fiber convex structure is in contact with the surface of various objects The electromagnetic wave shielding property and the like can be exhibited more effectively.
- the structure of the present invention includes the length of the electromagnetic conducting / absorbing fiber, the length of the electromagnetic conducting / absorbing fiber, and the convex shape of the electromagnetic conducting / absorbing fiber, in addition to the type of the electromagnetic conducting / absorbing fiber forming the convex structure of the electromagnetic conducting / absorbing fiber.
- the structure of the present invention may be grounded to further conduct or absorb electromagnetic waves.
- the structure of the present invention can be used in various applications utilizing various properties such as soundproofing, thermal conductivity, light reflectivity, and design, in addition to various applications utilizing electromagnetic conducting or absorbing properties. it can.
- the method for producing the structure of the present invention is not particularly limited, and the electromagnetic conducting or absorbing fiber convex structure portion is formed at a predetermined portion of a predetermined surface of the substrate, and then the electromagnetic conducting or absorbing electromagnetic wave is formed on the surface of the substrate.
- a method of providing a fiber protective material at a predetermined site may be used. However, after providing a fiber protective material at a predetermined site on a predetermined surface of the substrate, A method of forming an electromagnetic conducting or absorbing fiber convex structure portion in a predetermined portion where the fiber protective material is not provided on the surface of the substrate is preferable.
- the method for forming the electromagnetic conducting or absorbing fiber convex structure is not particularly limited, but for example, a flocking method is particularly preferred.
- the method for producing a structure of the present invention includes a step of forming an electromagnetic conducting or absorbing fiber convex structure portion at a predetermined portion of a predetermined surface of the substrate using a flocking method. It is preferable.
- a structure having electromagnetic conducting or absorbing properties can be produced easily and inexpensively by a simple method of flocking electromagnetic conducting or absorbing fibers.
- a flocking process to a predetermined part of the substrate using a flocking method, at least a part of the fibers are transferred from the surface of the substrate to the predetermined part of the substrate.
- a structure having an electromagnetic conducting or absorbing fiber convex structure on the substrate by forming the electromagnetic conducting or absorbing fiber convex structure in a form located on the outside.
- an electrostatic flocking method is particularly suitable.
- an electrostatic flocking processing method for example, a hair transplant object having an adhesive layer or a base is set to one electrode so as to be a counter electrode, and a DC high voltage is applied thereto.
- electrostatic flocking processing method is not particularly limited as long as it is a publicly known electrostatic flocking method.
- “Fibers” No. 34 ⁇ No. 6 (198 2-6) describes the principle of electrostatic flocking. It may be any of the up method, down method, and side method as described in “In fact”.
- a flocking method may be applied to a partial predetermined portion of the substrate (such as a partial predetermined portion of the surface of the substrate or a wall surface of a recess formed partially on the substrate).
- a fiber protective material on the surface of the substrate.
- a fiber protective material (fiber protective material having a through-hole portion) constituted by a member having a through-hole portion can be used. Therefore, as a method for producing the structure of the present invention, after providing a fiber protective material having a through hole on the surface of the base, an electromagnetic wave is applied to a portion of the base corresponding to the through hole of the fiber protective material.
- a method in which the conductive absorbent fiber convex structure is formed by a flocking method in a form in which at least a part of the fiber is located outside the surface of the substrate is preferable.
- the fiber protective material may be provided on the surface of the base after the electromagnetic conducting or absorbing fiber convex structure is formed on the base.
- the fiber protective member (having a hole) After forming the electromagnetic conducting or absorbing fiber convex structure portion in a predetermined portion such as the surface of the base or the wall surface of the concave portion using a peeling base material), a member having the hole portion is formed. Peel off A structure can be produced by providing a fiber protective material at a predetermined site on the surface of the substrate.
- the method for providing the fiber protective material on the surface of the substrate is not particularly limited, and it is possible to use a fixing means appropriately selected from known fixing means depending on the type of the substrate and the type of the fiber protective material. it can.
- the substrate is an adhesive layer
- the surface of the adhesive layer is adhered to a predetermined portion of the surface of the adhesive layer as a substrate by attaching a fiber protective material.
- a fiber protective material can be provided at a predetermined site.
- a fixing means using a pressure-sensitive adhesive or an adhesive, a fixing means by forming an adhesive layer on the surface of the fiber protective material, and the like are used.
- a fiber protective material can be provided at a predetermined site on the surface of the polymer layer by attaching a fiber protective material to a predetermined site on the surface of the polymer layer.
- the electromagnetic conducting or absorbing fiber convex structure portion is formed at a predetermined portion of the substrate, and the structure is manufactured. Is the position where the through hole portion in the fiber protective material is formed, the position where the electromagnetic conducting or absorbing fiber convex structure portion is formed on the surface of the substrate, depending on the size and number of the through hole portions of the fiber protective material, It is possible to control the size and number of the electromagnetic conducting or absorbing fiber convex structure, the concave portion for forming the electromagnetic conducting or absorbing fiber convex structure, and the like.
- the electromagnetic conducting or absorbing property (especially conductivity) of the structure is evaluated according to JIS K.
- the electromagnetic wave conductivity of the structure is determined by the size and shape of each electromagnetic conducting or absorbing fiber convex structure formed on the substrate (occupied area of one electromagnetic conducting or absorbing fiber convex structure), the shape, The ratio of the total electromagnetic conducting / absorbing fiber convex structure part to the entire surface of the substrate (occupied area of the total electromagnetic conducting / absorbing fiber convex structure part), the ratio of the fibers in the electromagnetic conducting / absorbing fiber convex structure part It can be controlled by shape (length, thickness, etc.) and material.
- the fibers are positive.
- a bot (with a line that can be sprayed in a state of being charged to a charge, and can flow from one side to the other side of a long strip of sheet in a state of being charged to a negative charge ( Size: Length in the flow direction of the line: 2.5 m X width: 1.3 m X height: 1.4 m) was used for electrostatic flocking.
- Acrylic adhesive base
- base containing 35% by weight of nickel powder (ratio to the total solid content) on one side of an aluminum substrate (thickness 60 ⁇ m) as an electromagnetic conducting or absorbing substrate!
- Polymer: butyl acrylate-acrylic acid copolymer is coated to a thickness of 35 m after drying to form an electromagnetic conducting / absorbing adhesive layer, and the electromagnetic conducting / absorbing adhesive After affixing a polyethylene net-like member (thickness 0.35 mm; porosity 32%) having the shape shown in FIG.
- Electrostatic flocking is applied using talyl fiber (fiber diameter 20 ⁇ m, fiber thickness 3 denier, fiber length 0.5 mm) with nickel plating treatment (nickel plating treatment) on the surface.
- the net-like member on the surface of the electromagnetic conducting or absorbing pressure-sensitive adhesive layer 6 is formed on an electromagnetic conducting or absorbing base material as shown in FIG.
- a fiber raising part (electromagnetic conducting / absorbing fiber raising part) made of electromagnetic conducting / absorbing fiber (acrylic fiber whose surface is nickel-plated) is partially formed.
- a sheet-like structure in which the electromagnetic conducting or absorbing fiber raised portion is prevented or prevented from being overturned by a net-like member (sometimes referred to as “sheet-like structure Al”), Further, the sheet-like structure A1 wound in a roll shape was obtained.
- the height of the net-like member is 70% of the height of the electromagnetic conducting or absorbing fiber raised portion.
- FIG. 5 shows a net member made of polyethylene as a fiber protective material used in Example 1.
- FIG. FIG. 6 is a schematic cross-sectional view showing the sheet-like structure produced in Example 1.
- Fig. 6, 5 is a sheet-like structure Al
- 51 is an electromagnetic wave conductive absorbent base (60 ⁇ m) made of an aluminum base
- 52 is an electromagnetic conductive absorbent stick with an acrylic adhesive containing nickel powder.
- 53 is a fiber protective material (0.35 mm) made of polyethylene net-like member
- 54 is an electromagnetic conducting or absorbing fiber raised portion made of nickel-treated acrylic fiber (0.50mm).
- the net-like member used in Example 1 has the same shape and material as the through-hole, but the polyethylene net-like member with a thickness of 0.70 mm (porosity 3 2 %) In the same manner as in Example 1 except that the surface of the electromagnetic conducting or absorbing pressure-sensitive adhesive layer formed on the electromagnetic conducting or absorbing base material as shown in FIG.
- a fiber raising portion (electromagnetic conducting / absorbing fiber raising portion) made of electromagnetic conducting or absorbing fiber (acrylic fiber having a nickel plating treatment on the surface) is formed, and the electromagnetic conducting or absorbing fiber raising A sheet-like structure (sometimes referred to as “sheet-like structure A2”) in which the side portion is suppressed or prevented by a net-like member is manufactured, and is further wound into a roll.
- sheet-like structure A2 wound in a roll was obtained.
- the height of the net member is 140% with respect to the height of the electromagnetic conducting or absorbing fiber raised portion.
- FIG. 7 is a schematic cross-sectional view showing the sheet-like structure produced in Example 2.
- 6 is a sheet-like structure A2
- 61 is an electromagnetic conducting / absorbing substrate (60 ⁇ m) made of an aluminum substrate
- 62 is an electromagnetic conducting / absorbing adhesive made of an acrylic adhesive containing nickel powder.
- Layer (35 m) is a fiber protective material (0.70 mm) made of polyethylene net-like material
- 64 is an electromagnetic conducting or absorbing fiber raised portion (0.50 mm) made of nickel-treated acrylic fiber. ).
- the thickness of the fiber protective material (0.70 mm) is thicker than the thickness of the electromagnetic conducting or absorbing fiber raised portion (0.5 mm),
- the tip of the fiber protective material is located on the outer side of the tip of the fiber of the electromagnetic conducting or absorbing fiber raised portion.
- sheet-like structure A2 On the sheet-like structure A2 produced in the same manner as in Example 2, a similar sheet-like structure A2 is prepared by combining the upper surface of the fiber protective material of one sheet-like structure A2 and the other sheet-like structure A2.
- a sheet-like structure (sometimes referred to as “sheet-like structure A3”) as shown in FIG. 8 is produced in a form in contact with the surface of the aluminum base material.
- a sheet-like structure A3 in a form wound in a roll was obtained.
- FIG. 8 is a schematic cross-sectional view showing the sheet-like structure produced in Example 3.
- 7 is a sheet-like structure A3, and the other symbols are the same as described above.
- Acrylic adhesive base
- base containing 35% by weight of nickel powder (ratio to the total solid content) on one side of an aluminum substrate (thickness 60 ⁇ m) as an electromagnetic conducting or absorbing substrate!
- Polymer: butyl acrylate-acrylic acid copolymer is coated to a thickness of 35 m after drying to form an electromagnetic conducting / absorbing adhesive layer, and the electromagnetic conducting / absorbing adhesive After a polyethylene net-like member (thickness 0.70 mm; porosity 32%) having the shape shown in FIG.
- the electromagnetic conducting or absorbing fiber was Electrostatic flocking is applied using talyl fiber (fiber diameter 20 ⁇ m, fiber thickness 3 denier, fiber length 0.5 mm) with nickel plating treatment (nickel plating treatment) on the surface.
- Fibers made of electromagnetic conducting or absorbing fibers are obtained by implanting acrylic fibers with nickel plating treatment on the surface at the sites corresponding to the through-holes of A polyethylene terephthalate film (film thickness 50 m) having a raised portion (electromagnetic conducting and absorbing fiber raised portion) and an acrylic adhesive layer (thickness 24 m) on one side
- a cover layer is formed on the upper surface of the sheet-like member to form a coating layer, and the surface of the electromagnetic conducting or absorbing pressure-sensitive adhesive layer formed on the electromagnetic conducting or absorbing base material as shown in FIG.
- fiber raised portions electromagnetically conductive absorbent fiber raised portions
- the electromagnetic conducting or absorbing fiber raised portions are The net-like material prevents or prevents the overturn, and the electromagnetic conducting or absorbing fiber raised portion
- a sheet-like structure in a form covered with a coating layer (sometimes referred to as “sheet-like structure A4”) is produced, and is further wound into a roll to form a sheet in a form wound into a roll.
- a toroidal structure A4 was obtained.
- the height of the net-like member is 140% of the height of the electromagnetic conducting or absorbing fiber raised portion.
- FIG. 9 is a schematic cross-sectional view showing the sheet-like structure produced in Example 4.
- 8 is a sheet-like structure A4, 81 is an electromagnetic conducting / absorbing substrate (60 ⁇ m) using an aluminum substrate, and 82 is an electromagnetic conducting / absorbing adhesive using an acrylic adhesive containing nickel powder.
- Layer (35 m) 83 is a fiber protective material (0.70 mm) made of polyethylene net-like material, 84 is an electromagnetic conducting / absorbing fiber raised portion (0.5 mm) made of nickel-treated acrylic fiber ), 85 is a coating layer made of a polyethylene terephthalate film having an acrylic pressure-sensitive adhesive layer, 85a is an acrylic pressure-sensitive adhesive layer (24 m), and 85b is a polyethylene terephthalate vinylome (50 ⁇ m).
- Acrylic adhesive base
- base containing 35% by weight of nickel powder (ratio to the total solid content) on one side of an aluminum substrate (thickness 60 ⁇ m) as an electromagnetic conducting or absorbing substrate!
- Polymer: butyl acrylate-acrylic acid copolymer is coated to a thickness of 35 m after drying to form an electromagnetic conducting / absorbing adhesive layer, and the electromagnetic conducting / absorbing adhesive After a polyethylene net-like member (thickness 0.70 mm; porosity 32%) having the shape shown in FIG.
- the electromagnetic conducting or absorbing fiber was Electrostatic flocking is applied using talyl fiber (fiber diameter 20 ⁇ m, fiber thickness 3 denier, fiber length 0.5 mm) with nickel plating treatment (nickel plating treatment) on the surface.
- Fibers made of electromagnetic conducting or absorbing fibers are obtained by implanting acrylic fibers with nickel plating treatment on the surface at the sites corresponding to the through-holes of Raised part (electromagnetic conducting and absorbing fiber raised part) was formed, and furthermore, it had an acrylic adhesive layer (thickness 24 m) on one side and nickel plating treatment (mesh treatment with nickel) on the surface
- a woven fabric made of acrylic fiber is bonded to the upper surface of the net-like member to form a coating layer. Formed on an electromagnetic conducting or absorbing base material!
- An electromagnetic conducting / absorbing pressure-sensitive adhesive layer The surface of the layer is partially covered with an electromagnetic conducting / absorbing fiber (acrylic fiber having a nickel plating treatment on the surface).
- the electromagnetic conducting or absorbing fiber raising portion is formed or prevented from being overturned by the net-like member!
- a sheet-like structure (sometimes referred to as “sheet-like structure A5”) in which the electromagnetic conducting or absorbing fiber raised portion is covered with a coating layer is produced and wound into a cocoon roll.
- sheet-like structure A5 wound in a roll shape was obtained.
- the height of the net-like member is 140% of the height of the electromagnetic conducting or absorbing fiber raised portion.
- FIG. 10 is a schematic cross-sectional view showing the sheet-like structure produced in Example 5.
- 9 is a sheet-like structure A5
- 91 is an electromagnetic conducting / absorbing substrate (60 ⁇ m) made of an aluminum substrate
- 92 is an electromagnetic conducting / absorbing adhesive made of an acrylic adhesive containing nickel powder.
- Agent layer (35 m) is a fiber protective material (0.70 mm) made of polyethylene net-like material
- 94 is an electromagnetic conducting or absorbing fiber raised part (0.50 mm) made of nickel-treated acrylic fiber
- 95 has an acrylic adhesive layer (thickness: 24 m) and a coating layer made of woven fabric made of acrylic fiber with nickel plating treatment on the surface
- 95a is an acetyl adhesive layer (24 ⁇ m )
- 95b is a woven fabric (86 ⁇ m) made of acrylic fiber with a nickel-plated surface.
- Acrylic adhesive base
- base containing 35% by weight of nickel powder (ratio to the total solid content) on one side of an aluminum substrate (thickness 60 ⁇ m) as an electromagnetic conducting or absorbing substrate!
- Polymer: butyl acrylate-acrylic acid copolymer) is applied to a thickness of 35 m after drying to form an electromagnetic conducting / absorbing adhesive layer, and then, as an electromagnetic conducting / absorbing fiber, Using an acrylic fiber (fiber diameter 20 ⁇ m, fiber thickness 3 denier, fiber length 0.5 mm) treated with nickel plating (nickel plating) on the surface, electrostatic flocking was applied.
- the electromagnetic conducting or absorbing base material as shown in FIG.
- FIG. 11 is a schematic cross-sectional view showing a sheet-like structure produced in Comparative Example 1.
- 10 is a sheet-like structure A6, 101 is an electromagnetic conducting / absorbing substrate (60 ⁇ m) using an aluminum substrate, and 102 is an electromagnetic conducting / absorbing adhesive using an acrylic adhesive containing nickel powder.
- the agent layer (35 ⁇ m), 103 is a raised part (0.50 mm) of electromagnetic conducting or absorbing fiber made of acrylic fiber treated with nickel plating.
- ⁇ The overturning of the fibers of the electromagnetic conducting or absorbing fiber convex structure is suppressed or prevented, and the thickness of the portion of the electromagnetic conducting or absorbing fiber convex structure located outside the surface of the substrate is The thickness before winding into a roll shape (thickness when the electromagnetic conducting or absorbing fiber convex structure is formed by flocking) is 50% or more.
- the fiber of the electromagnetic conducting or absorbing fiber convex structure portion is laid down, and the thickness of the portion of the electromagnetic conducting or absorbing fiber convex structure portion located outside the surface of the substrate is a roll shape.
- the thickness is less than 50% with respect to the thickness before winding (the thickness when the electromagnetic conducting or absorbing fiber convex structure is formed by flocking).
- the sheet-like structures A1 to A6 wound in the form of rolls obtained in Examples 1 to 5 and Comparative Example 1, and Reference Example 1, as Comparative Example 1, were rolled.
- the shielding effect was evaluated.
- the evaluation results are shown in Table 2 and the graphs are shown in Figs.
- the graphs shown in FIGS. 12 to 15 are graphs of a part of the data in Table 2, and are graphs related to the magnetic field shielding effect.
- the horizontal axis is the frequency (MHz) of the applied electromagnetic wave
- the vertical axis is the shielding effect (dB).
- the KEC method used in the KEC method electromagnetic wave shielding evaluation apparatus is a method developed by the Kansai Electronic Industry Development Center. In this method, an amplifier and a spectrum analyzer are used, and each shield box (electric field shield box and magnetic field shield box) commercialized by Anritsu Corporation is used to evaluate the shielding effect in the nearby electromagnetic field. And then. Specifically, the sheet-like structure is fixed using a shield box for an electric field as shown in FIG. 16 (a) or a shield box for a magnetic field as shown in FIG. 16 (b).
- the energy (sometimes referred to as “E2”) of a transmitted wave (transmitted electric field or transmitted magnetic field) that is incident from the convex structure side and is transmitted through the other surface of the sheet-like structure is measured. Obtain the shielding effect (dB) by 1).
- Fig. 16 is a schematic diagram showing a shield box used in the KEC electromagnetic shielding evaluation apparatus.
- Fig. 16 (a) shows an electric field shield box and
- Fig. 16 (b) shows a magnetic field shield box.
- the electric field shield box (electric field shield evaluation device) incorporates the TEM cell size distribution and has a structure that is symmetrically divided in a plane perpendicular to the transmission axis direction. However, the short circuit is prevented from being formed by inserting the measurement sample.
- the shield box for magnetic field uses a shielded circular loop antenna to generate an electromagnetic field with a large magnetic field component.
- the part of 1Z4 is outside and has a structure.
- the shielding effect is expressed by the above formula (1). It is expressed as 20 times the common logarithm of the ratio of the electromagnetic energy of the incident electric field or magnetic field to the electromagnetic energy of the transmitted electric field or transmitted magnetic field (unit: dB). As a guideline of the shielding effect, the shielding effect is almost zero at 0 to 1 OdB.
- the shielding effect is the minimum at 10 to 30 dB, and the shielding effect is an average level at 30 to 60 dB. At 60 to 90 dB, there is a considerable shielding effect, and above 90 dB, it is described as the highest shielding effect! (Pages 254 to 253).
- the measurement limits differ between the low frequency region and the high frequency region. This is because the transmission characteristic of the shield (aluminum shield plate) is constant regardless of the frequency (in the electric field shield box, it is 105 dBm from 1 MHz to 1 GHz), while the transmission characteristic of the through is the frequency characteristic ( (It is attenuated to about -50 dBm on the low frequency side, and OdBm is received on the high frequency side with the same size as the transmitting side).
- the transmission characteristic of the shield (2 mm thick aluminum shield plate) is actually a small value, and ⁇ 105 dBm is considered to be the noise level (capability) of the spectrum analyzer.
- the sheet-like structures A1-A5 according to Examples 1-5 are compared with the sheet-like structure A6 according to Comparative Example 1.
- the sheet-like structures A1 to A5 according to Examples 1 to 5 are the sheet-like structures A6 (that is, the electromagnetic conducting or absorbing fiber convex structure before being wound into a roll shape in Comparative Example 1).
- the sheet-like structure A6 according to Comparative Example 1 has a magnetic field shielding effect lower than that of the sheet-like structure A6 before being rolled into a roll, particularly in a high-frequency region (especially 100 MHz to 1000 MHz). The effect is drastically reduced.
- the magnetic field shielding effect can be further improved by stacking sheet-like structures or using an electromagnetic conducting / absorbing coating layer as a coating layer for coating the electromagnetic conducting or absorbing fiber convex structure.
- the shielding effect in the low frequency region below 100 MHz can be enhanced.
- the sheet-like structures A1 to A6 according to Examples 1 to 5 have an electromagnetic conducting or absorbing fiber convex structure portion protected by an electromagnetic conducting or absorbing fiber with a fiber protective material.
- Excellent anti-overturning property, preventing or preventing the fiber from overturning, can effectively exhibit the thickness effect of the electromagnetic conducting or absorbing fiber convex structure, and enables flexible shielding materials , It will be easy to summarize in various places.
- Acrylic adhesive base
- base containing 35% by weight of nickel powder (ratio to the total solid content) on one side of an aluminum substrate (thickness 50 ⁇ m) as an electromagnetic conducting or absorbing substrate!
- Polymer: butyl acrylate-acrylic acid copolymer is coated to a thickness of 35 m after drying to form an electromagnetic conducting / absorbing adhesive layer, and the electromagnetic conducting / absorbing adhesive
- the product name “Nisseki Conwood ON6200” Neisseki Plasto Co., Ltd .
- net After attaching the (like member) to the surface as an electromagnetic conducting or absorbing fiber.
- Electromagnetic flocking treatment is performed using acrylic fiber (fiber diameter 2 O ⁇ m, fiber length 0.5 mm) that has been subjected to Kelmet treatment (nickel treatment), and the electromagnetic conducting or absorbing pressure-sensitive adhesive layer. Formed on the electromagnetic conducting or absorbing base material by implanting acrylic fibers having a nickel plating treatment on the surface thereof at a portion corresponding to the through hole portion of the net-like member (fiber protective material) on the surface of the substrate. On the surface of the electromagnetic conducting / absorbing pressure-sensitive adhesive layer, there is a fiber raising part (electromagnetic conducting / absorbing fiber raising part) made of electromagnetic conducting / absorbing fiber (acrylic fiber whose surface is nickel-plated).
- a sheet-like structure (which may be referred to as “sheet-like structure Bl”) in which the electromagnetic conducting or absorbing fiber raised portion is formed or prevented from being overturned or prevented by a net-like member was produced ( roll Not wound in the shape).
- the height of the net-like member is 100% of the height of the electromagnetic conducting or absorbing fiber raised portion.
- the product name “day” is further formed on the surface of the sheet-like structure B1 where the electromagnetic conducting or absorbing fiber raised portion is formed.
- Stone Conwood XN9567J (Nisseki Plast Co., Ltd .; mesh size lmm X lmm, basis weight 151 porosity 46%, thickness 0.34mm)
- a 0.88 mm sheet-like structure (sometimes referred to as “sheet-like structure B2”) was produced (not rolled into a roll).
- the height of the net-like member is 168% with respect to the height of the electromagnetic conducting or absorbing fiber raised portion.
- the product name “day” is further formed on the surface of the sheet-like structure B1 where the electromagnetic conducting or absorbing fiber raised portion is formed.
- "Stone Conwood ON6200” Neki Plast Co., Ltd .; mesh size 4mm X 4mm, basis weight 34g porosity 76%, thickness 0.5mm
- a sheet-like structure having a thickness of 1. Omm (sometimes referred to as “sheet-like structure B3”) was produced (not rolled into a roll).
- the height of the net member is 200% of the height of the electromagnetic conducting or absorbing fiber raised portion. It is height.
- the product name “day” is further formed on the surface of the sheet-like structure B1 where the electromagnetic conducting or absorbing fiber raised portion is formed.
- Stone Conwood XN9567J (Nisseki Plast Co., Ltd .; mesh lmm x lmm, basis weight 151, porosity 46%, thickness 0.34mm)
- a sheet-like structure having a thickness of 1.18 mm (sometimes referred to as “sheet-like structure B4”) was produced (not rolled into a roll).
- the height of the net-like member is 236% of the height of the electromagnetic conducting or absorbing fiber raised portion.
- the product name “Nisseki Conwood ON3330” (Nippon Stone Plast Co., Ltd .; mesh size 4mm X lmm, basis weight 32gZm 2 , porosity 68%, thickness 0.32mm) (net-like member) was used as the fiber protective material.
- a part of the surface of the electromagnetic conducting / absorbing adhesive layer formed on the electromagnetic conducting / absorbing substrate was partially coated with an electromagnetic conducting / absorbing fiber (nickel plating on the surface).
- a sheet-like structure (sometimes referred to as “sheet-like structure B5”) was produced (not rolled into a roll). In the sheet-like structure B5, the height of the net-like member is 64% of the height of the electromagnetic conducting or absorbing fiber raised portion.
- the product name “Nisseki Conwood XN9567” (Nisseki Plast Co., Ltd .; mesh size lmm X lmm, basis weight 151gZm 2 , porosity 46%, thickness 0.34mm) (net-like member) was used as the fiber protective material.
- a part of the surface of the electromagnetic conducting / absorbing pressure-sensitive adhesive layer formed on the electromagnetic conducting / absorbing substrate was partially coated with an electromagnetic conducting / absorbing fiber (surface treated with nickel plating).
- a fiber raised portion electromagnetically conductive absorbent fiber raised portion
- the electromagnetically conductive absorbent fiber raised portion is a net.
- a sheet-like structure (which may be referred to as “sheet-like structure B 6”) having a shape in which side-turning is suppressed or prevented by the sheet-like member (not rolled into a roll) was produced.
- the height of the net-like member is 68% of the height of the electromagnetic conducting or absorbing fiber raised portion.
- the product name “Nisseki Conwood XN6065” (Nisseki Plast Co., Ltd .; mesh size lmm X lmm, basis weight 100gZm 2 , porosity 38%, thickness 0.48mm) (net-like member) was used as the fiber protective material.
- a part of the surface of the electromagnetic conducting / absorbing pressure-sensitive adhesive layer formed on the electromagnetic conducting / absorbing substrate was partially coated with an electromagnetic conducting / absorbing fiber (surface treated with nickel plating).
- a fiber raised portion (electromagnetically conductive absorbent fiber raised portion) is formed, and the electromagnetically conductive absorbent fiber raised portion is suppressed or prevented from being overturned by a net-like member.
- a sheet-like structure (sometimes referred to as “sheet-like structure B 7”) was produced (not rolled into a roll).
- the height of the net-like member is 96% of the height of the electromagnetic conducting or absorbing fiber raised portion.
- a circular hole (diameter 0.8 mm) is drilled on a polyethylene-based resin base (thickness 0.1 mm) so that the porosity is 2%.
- Example 6 with the exception of using a sheet-like member having a structure formed in proportion (thickness of the thick part in the peripheral region of the perforated part 0.18 mm) (perforated sheet member).
- electromagnetic wave conductive absorbent fibers (acrylic type with nickel plating treatment on the surface) are partially formed on the surface of the electromagnetic wave conductive absorbent pressure-sensitive adhesive layer formed on the electromagnetic wave conductive absorbent substrate.
- Fiber-raised portion (electromagnetically conductive and absorbent fiber raised portion) is formed, and the electromagnetic conducting and absorbing fiber raised portion is suppressed or prevented from being overturned by a perforated sheet member (" (Sometimes called sheet-like structure B8 ”) Stomach).
- sheet-like structure B8 the height of the perforated sheet member is 36% of the height of the electromagnetic wave conductive absorbent fiber raising portion.
- Example 14 As a fiber protection material, a circular hole (diameter 0.8 mm) is drilled on a polyethylene-based resin base (thickness 0.25 mm) so that the porosity is 2%.
- Example 6 with the exception of using a sheet-like member having a structure formed in proportion (thickness of the thick part in the peripheral region of the perforated part 0.35 mm) (perforated sheet member).
- electromagnetic wave conductive absorbent fibers (acrylic type with nickel plating treatment on the surface) are partially formed on the surface of the electromagnetic wave conductive absorbent pressure-sensitive adhesive layer formed on the electromagnetic wave conductive absorbent substrate.
- Fiber-raised portion (electromagnetically conductive and absorbent fiber raised portion) is formed, and the electromagnetic conducting and absorbing fiber raised portion is suppressed or prevented from being overturned by a perforated sheet member (" (Sometimes called sheet-like structure B9 ”) Stomach).
- a perforated sheet member (“ (Sometimes called sheet-like structure B9 ”) Stomach).
- the height of the perforated sheet member is 70% of the height of the electromagnetic conducting or absorbing fiber raised portion.
- a circular hole (diameter: 0.8 mm) is formed in a polyethylene-based resin base (thickness: 0.18 mm) by drilling so that the porosity is 0.65% at almost equal intervals.
- Example 6 except that a sheet-like member having a structure formed at such a ratio (thickness of the thick part in the peripheral region of the perforated part: 0.25 mm) (perforated sheet member) was used.
- the surface of the electromagnetic conducting or absorbing pressure-sensitive adhesive layer formed on the electromagnetic conducting or absorbing base material is partially coated with an electromagnetic conducting or absorbing fiber (acrylic with nickel plating treatment on the surface).
- Sheet-like structure in which a fiber raised portion (electromagnetic conducting and absorbing fiber raising portion) is formed by a fiber and the electromagnetic conducting and absorbing fiber raising portion is prevented or prevented from being overturned by a perforated sheet member.
- sheet-like structure B10 (Sometimes referred to as “sheet-like structure B10”) produced (rolled into a roll) Have not).
- the height of the perforated sheet member is 54% of the height of the electromagnetic wave conductive absorbent fiber raising portion.
- a circular hole (0.8 mm in diameter) is formed in a polyethylene-based resin base (thickness 0.20 mm) by drilling so that the porosity is 0.32% at almost equal intervals.
- Example 6 except that a sheet-like member having a structure formed at such a ratio (thickness of the thick part in the peripheral region of the perforated part: 0.28 mm) (perforated sheet member) was used.
- the surface of the electromagnetic conducting / absorbing adhesive layer formed on the conducting / absorbing base material is partially raised by electromagnetic conducting / absorbing fibers (acrylic fibers with nickel plating treatment on the surface).
- Sheet-like structure B11 Sheet-like structure in which the electromagnetic conduction-absorbing and fiber-raising portion is suppressed or prevented from being overturned by the perforated sheet member. (Sometimes referred to as “)” (not rolled into a roll).
- the height of the perforated sheet member is 56% of the height of the electromagnetic wave conductive absorbent fiber raising portion.
- a fiber protective material As a fiber protective material, a polyethylene terephthalate-based resin base (thickness: 0.075 mm) and circular holes (diameter: 0.8 mm) by drilling have almost equal intervals and a porosity of 0.17%. Except that a sheet-shaped member (thickness of the thick portion in the peripheral region of the perforated portion of 0.1 lmm) (perforated sheet member) is used.
- the surface of the electromagnetic conducting / absorbing pressure-sensitive adhesive layer formed on the electromagnetic conducting / absorbing substrate is partially coated with an electromagnetic conducting / absorbing fiber (surface treated with nickel plating).
- a fiber raised portion electromagnetically conductive absorbent fiber raised portion
- the electromagnetic conductive absorbent fiber raised portion is prevented or prevented from being overturned by a perforated sheet member.
- Sheet-like structure (sometimes referred to as “sheet-like structure B12”) Not wound in the shape). In the sheet-like structure B12, the height of the perforated sheet member is 20% of the height of the electromagnetic conducting or absorbing fiber raised portion.
- Fiber raising portion (electromagnetic conducting and absorbing fiber raising portion) is formed, and the electromagnetic conducting and absorbing portion is formed.
- a sheet-like structure (sometimes referred to as “sheet-like structure B13”) in which the roll-up portion of the absorptive fiber was prevented or prevented from being overturned by the perforated sheet member was produced (wound in a roll shape). Absent).
- the height of the perforated sheet member is 40% of the height of the electromagnetic wave conductive absorbent fiber raising portion.
- Fiber-raised portion (electromagnetically conductive absorbent fiber raised portion) is formed, and the electromagnetic conducting or absorbing fiber raised portion is suppressed or prevented from being overturned by a perforated sheet member ("sheet” (It may be referred to as a “like structure B14”). Not).
- sheet (It may be referred to as a “like structure B14”).
- the height of the perforated sheet member is 74% of the height of the electromagnetic wave conductive absorbent fiber raising portion.
- the product name “Nisseki” is further formed on the surface of the sheet-like structure B12 where the electromagnetic conducting or absorbing fiber raised portion is formed.
- Conwood ON6200 (Nisseki Plast Co., Ltd .; 4mm x 4mm mesh, 3 basis weight) (Porosity 76%, thickness 0.5mm) Overlay (net-like member), the thickness of the fiber protective material (total thickness of perforated sheet member and net-like member) is 0.7mm.
- a sheet-like structure (sometimes referred to as “sheet-like structure B15”) was produced (not rolled into a roll). In the sheet-like structure B15, the height of the fiber protective material is 140% of the height of the electromagnetic conducting or absorbing fiber raised portion.
- a fiber protective material As a fiber protective material, a polyethylene terephthalate-based resin base (thickness: 0.075 mm) and circular holes (diameter: 0.8 mm) are drilled at almost equal intervals and a porosity of 0.04%. Na Except that a sheet-shaped member (thickness of the thick portion in the peripheral region of the perforated portion: 0.1 mm) (perforated sheet member) is used.
- the surface of the electromagnetic conducting / absorbing pressure-sensitive adhesive layer formed on the electromagnetic conducting / absorbing substrate is partially coated with an electromagnetic conducting / absorbing fiber (nickel plating treatment on the surface).
- a fiber raising portion (electromagnetic conducting / absorbing fiber raising portion) is formed, and the electromagnetic conducting / absorbing fiber raising portion is prevented or prevented from being overturned by a perforated sheet member.
- a sheet-like structure (sometimes referred to as “sheet-like structure B16”) was produced (not wound in a tool shape). In the sheet-like structure B16, the height of the perforated sheet member is 20% of the height of the electromagnetic conducting or absorbing fiber raised portion.
- a circular hole (diameter 0.8 mm) is drilled into a polyolefin base material (thickness 0.13 mm) and the porosity becomes 0.04% at almost equal intervals.
- Example 6 with the exception of using a sheet-like member having a configuration formed at such a ratio (thickness of the thick portion in the peripheral region of the perforated part 0.2 mm) (perforated sheet member).
- a part of the conductive conducting / absorbing fiber (nickel-plated acrylic-based surface) is applied.
- a fiber-raised portion (electromagnetically conductive absorbent fiber raised portion) is formed, and the electromagnetic conducting / absorbing fiber raised portion is suppressed or prevented from being overturned by a perforated sheet member (sheet-like structure) (Sometimes called “sheet-like structure B17”). Not) In the sheet-like structure B17, the height of the perforated sheet member is 40% of the height of the electromagnetic wave conductive absorbent fiber raising portion.
- the electromagnetic conducting or absorbing adhesive layer formed on the electromagnetic conducting or absorbing base material there are formed fiber raised portions (electromagnetically conductive absorbent fiber raised portions) made of electromagnetic conducting or absorbing fibers (acrylic fibers having a nickel plating treatment on the surface), and the electromagnetic conducting or absorbing fiber raised portions are perforated sheets.
- a sheet-like structure (which may be referred to as “sheet-like structure B18”) having a form in which the overturning was suppressed or prevented by the member was produced (not rolled into a roll).
- the height of the perforated sheet member is 74% of the height of the electromagnetic wave conductive absorbent fiber raising portion.
- the product name “Nisseki” was further formed on the surface of the sheet-like structure B16 on the side where the electromagnetic conducting or absorbing fiber raised portion was formed.
- Conwood ON6200 (Nisseki Plast Co., Ltd .; 4mm x 4mm mesh, 3 basis weight) (Porosity 76%, thickness 0.5mm) Overlay (net-like member), the thickness of the fiber protective material (total thickness of perforated sheet member and net-like member) is 0.7mm.
- a sheet-like structure (sometimes referred to as “sheet-like structure B19”) was produced (not rolled into a roll). In the sheet-like structure B19, the height of the fiber protective material is 140% of the height of the electromagnetic conducting or absorbing fiber raised portion.
- a fiber-raised portion (electromagnetically conductive absorbent fiber raised portion) is formed, and the electromagnetic conducting / absorbing fiber raised portion is suppressed or prevented from being overturned by a perforated sheet member (sheet-like structure) (Sometimes called “sheet-like structure B20”). Not) In the sheet-like structure B20, the height of the perforated sheet member is 40% of the height of the electromagnetic wave conductive absorbent fiber raising portion.
- Example 26 As a fiber protection material, circular holes (diameter 0.8 mm) are drilled into a polyolefin base resin (thickness 0.25 mm) and the porosity becomes 0.01% at almost equal intervals.
- Example 6 with the exception of using a sheet-like member having a structure formed at such a ratio (thickness of the thick part in the peripheral region of the perforated part 0.37 mm) (perforated sheet member).
- the electromagnetic conducting / absorbing fiber a nickel plating treatment on the surface is partially applied.
- Fiber-raised portion (electromagnetically conductive absorbent fiber raised portion) is formed, and the electromagnetic conducting or absorbing fiber raised portion is suppressed or prevented from being overturned by a perforated sheet member ("sheet” (In some cases, it is referred to as a “shaped structure B21”). Not).
- sheet perforated sheet member
- the height of the perforated sheet member is 74% of the height of the electromagnetic wave conductive absorbent fiber raising portion.
- Body sometimes referred to as “sheet-like structure B22”
- the height of the perforated sheet member is 74% of the height of the electromagnetic conducting or absorbing fiber raised portion.
- Acrylic adhesive base
- base containing 35% by weight of nickel powder (ratio to the total solid content) on one side of an aluminum substrate (thickness 50 ⁇ m) as an electromagnetic conducting or absorbing substrate!
- Polymer: butyl acrylate-acrylic acid copolymer) is applied to a thickness of 35 m after drying to form an electromagnetic conducting / absorbing adhesive layer,
- electrostatic flocking was performed using acrylic fiber (fiber diameter: 20 m, fiber length: 0.5 mm) whose surface was nickel-plated (nickel-plated).
- the electromagnetic conducting / absorbing absorption formed on the electromagnetic conducting / absorbing base material is made by flocking the surface of the electromagnetic conducting / absorbing pressure-sensitive adhesive layer with acrylic fibers having a nickel plating treatment on the entire surface.
- the surface of the adhesive layer is entirely formed with a fiber raised portion (electromagnetically conductive absorbent fiber raised portion) made of electromagnetic conducting / absorbing fibers (acrylic fibers with nickel plating treatment on the surface).
- a sheet-like structure (sometimes referred to as “sheet-like structure B23”) was prepared (wound in a roll shape! /).
- the magnetic field shielding effect was evaluated using the KEC electromagnetic wave shielding evaluation apparatus in the same manner as described above. Further, after pressing the sheet-like structure Bl and the sheet-like structures B5 to B23 obtained in Example 6, Examples 10 to 27 and Comparative Example 2 through a laminator, the pressed sheet form With respect to the structural body Bl and the sheet-like structural bodies B5 to B23, the magnetic field shielding effect was evaluated using the KEC electromagnetic shielding evaluation apparatus in the same manner as described above. These evaluation results are shown in Tables 3-4. When pressure is not applied through the laminator, it is shown in the “Non-pressurized” section, and when pressurized through the laminator, it is shown in the “Pressurized” section.
- a conductive adhesive tape (trade name “-tofoil AT-5105EJ made by Nitto Denko Co., Ltd.”) in which an aluminum base material was used as the base material was pasted on the raised part of the electromagnetic conducting or absorbing fiber. Then, the electromagnetic conducting or absorbing fiber raised portions of the sheet-like structure Bl, the sheet-like structures B5 to B8, the sheet-like structure B13, and the sheet-like structure B23 are covered with a coating layer made of a conductive adhesive tape.
- the KEC method electromagnetic wave shielding evaluation apparatus was used to evaluate the magnetic field shielding effect, and the sheet-like structure Bl and the sheet-like structures B5 to B8. , Sheet-like structure B13 and sheet-like structure B 23 electromagnetic conducting / absorbing fiber raised parts are made of conductive adhesive tape
- the pressurized sheet-like structure is subjected to the KEC method electromagnetic wave shielding evaluation apparatus in the same manner as described above.
- Table 5 When pressure is not applied through the laminator, it is shown in the “Non-pressurized” section, and when pressurized through the laminator, it is shown in the “Pressurized” section.
- the sheet-like structure was evaluated for the magnetic field shielding effect using the KEC electromagnetic wave shielding evaluation apparatus in the same manner as described above, and the sheet-like structure Bl, the sheet-like structures B5 to B8, and the sheet-like structure.
- the total area of the portion where the electromagnetic conducting or absorbing fiber convex structure is provided is the area that is a ratio of 0.003% to the total surface area on one side of the substrate.
- the electromagnetic wave shielding effect of shielding by conducting or absorbing electromagnetic waves can be effectively exhibited, and that the effect can be effectively exhibited even when the force is applied. .
- the structure of the present invention has the above-mentioned structure, it can effectively retain the property of conducting or absorbing electromagnetic waves at an excellent level even when an external pressure is applied. Therefore, the structure of the present invention can be suitably used as a conductive material, an electromagnetic wave absorbing material, and an electromagnetic wave shielding material.
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Textile Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
- Laminated Bodies (AREA)
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP06731701A EP1879442A4 (en) | 2005-04-18 | 2006-04-12 | STRUCTURE WITH THE PROPERTY OF LEAKING OR ABSORBING AN ELECTROMAGNETIC SHAFT |
US11/886,579 US20090029094A1 (en) | 2005-04-18 | 2006-04-12 | Structure with capability of conducting/absorbing electromagnetic waves |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005119225 | 2005-04-18 | ||
JP2005-119225 | 2005-04-18 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2006120832A1 true WO2006120832A1 (ja) | 2006-11-16 |
Family
ID=37396347
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2006/307765 WO2006120832A1 (ja) | 2005-04-18 | 2006-04-12 | 電磁波を伝導又は吸収する特性を有する構造体 |
Country Status (6)
Country | Link |
---|---|
US (1) | US20090029094A1 (ja) |
EP (1) | EP1879442A4 (ja) |
KR (1) | KR20070122549A (ja) |
CN (1) | CN101164394A (ja) |
TW (1) | TW200644786A (ja) |
WO (1) | WO2006120832A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1850651A3 (en) * | 2006-04-28 | 2010-06-16 | Nitto Denko Corporation | Article including sheet-like electromagnetic shielding structure |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101094253B1 (ko) * | 2008-04-28 | 2011-12-19 | 정춘길 | 무선 전력 수신 장치, 이와 관련된 무선 전력 송신 장치, 그리고, 무선 전력 송수신 시스템 |
US8552725B2 (en) * | 2009-12-07 | 2013-10-08 | Northrop Grumman Guidance & Electronics Company, Inc. | Systems and methods for obstructing magnetic flux while shielding a protected volume |
CN103458603A (zh) * | 2012-05-30 | 2013-12-18 | 江苏伟信电子有限公司 | 一种屏蔽增强型pcb板 |
KR101926797B1 (ko) * | 2012-07-31 | 2018-12-07 | 삼성전기주식회사 | 인쇄회로기판 |
CN103866556B (zh) * | 2014-03-31 | 2015-11-11 | 南京南大波平电子信息有限公司 | 微米激光雷达吸收材料及其制备方法 |
CN105607143B (zh) * | 2016-01-31 | 2018-03-13 | 安徽泷汇安全科技有限公司 | 一种通过式人体安全检测装置 |
CN106085267A (zh) * | 2016-06-15 | 2016-11-09 | 胡银坤 | 一种抗静电抗磁防刮高透保护膜及其制备方法 |
CN107910089A (zh) * | 2017-11-17 | 2018-04-13 | 南京核安核能科技有限公司 | 一种新型柔性无铅辐射的防护服 |
JP6404522B1 (ja) * | 2018-07-03 | 2018-10-10 | 加川 清二 | 電磁波吸収複合シート |
JP7099949B2 (ja) * | 2018-12-25 | 2022-07-12 | トヨタ自動車株式会社 | 車両下部構造 |
CN111593575A (zh) * | 2019-02-20 | 2020-08-28 | 江苏唐工纺实业有限公司 | 一种防电磁辐射面料的制备方法 |
Citations (5)
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JPS61112698U (ja) * | 1984-12-26 | 1986-07-16 | ||
JPH10117089A (ja) * | 1996-10-15 | 1998-05-06 | Kitagawa Ind Co Ltd | 電磁波シールド材 |
JP2003218580A (ja) * | 2002-01-24 | 2003-07-31 | Mitsubishi Cable Ind Ltd | 電波吸収部材 |
JP2004104072A (ja) * | 2002-07-16 | 2004-04-02 | Koyo Sangyo Co Ltd | 電磁波シールド材 |
JP2004104067A (ja) * | 2002-07-16 | 2004-04-02 | Koyo Sangyo Co Ltd | 電磁波シールド材を用いた閉止部材構造 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0162645A1 (en) * | 1984-05-11 | 1985-11-27 | Masami Harada | Carbon-fiber-covered material |
US5522602A (en) * | 1992-11-25 | 1996-06-04 | Amesbury Group Inc. | EMI-shielding gasket |
JP4726421B2 (ja) * | 2003-04-30 | 2011-07-20 | 日東電工株式会社 | 繊維凸状構造転写形成用シート |
-
2006
- 2006-04-12 EP EP06731701A patent/EP1879442A4/en not_active Withdrawn
- 2006-04-12 CN CNA2006800130070A patent/CN101164394A/zh active Pending
- 2006-04-12 WO PCT/JP2006/307765 patent/WO2006120832A1/ja active Application Filing
- 2006-04-12 US US11/886,579 patent/US20090029094A1/en not_active Abandoned
- 2006-04-12 KR KR1020077026579A patent/KR20070122549A/ko not_active Application Discontinuation
- 2006-04-17 TW TW095113599A patent/TW200644786A/zh unknown
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
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JPS61112698U (ja) * | 1984-12-26 | 1986-07-16 | ||
JPH10117089A (ja) * | 1996-10-15 | 1998-05-06 | Kitagawa Ind Co Ltd | 電磁波シールド材 |
JP2003218580A (ja) * | 2002-01-24 | 2003-07-31 | Mitsubishi Cable Ind Ltd | 電波吸収部材 |
JP2004104072A (ja) * | 2002-07-16 | 2004-04-02 | Koyo Sangyo Co Ltd | 電磁波シールド材 |
JP2004104067A (ja) * | 2002-07-16 | 2004-04-02 | Koyo Sangyo Co Ltd | 電磁波シールド材を用いた閉止部材構造 |
Non-Patent Citations (1)
Title |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1850651A3 (en) * | 2006-04-28 | 2010-06-16 | Nitto Denko Corporation | Article including sheet-like electromagnetic shielding structure |
Also Published As
Publication number | Publication date |
---|---|
US20090029094A1 (en) | 2009-01-29 |
KR20070122549A (ko) | 2007-12-31 |
CN101164394A (zh) | 2008-04-16 |
EP1879442A4 (en) | 2010-07-14 |
EP1879442A1 (en) | 2008-01-16 |
TW200644786A (en) | 2006-12-16 |
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