JP2732789B2 - Electromagnetic wave shielding laminated sheet - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [0001] BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electromagnetic wave shielding laminate.
It is about a sheet. To elaborate further,
The present invention relates to an amorphous metal thin film and a non-amorphous metal.
It has a thin film and a fiber cloth reinforcement layer, and is excellent against electromagnetic waves
Excellent shielding strength and excellent mechanical strength for practical use
The invention relates to an electromagnetic wave shielding laminate sheet having
You. [0002] 2. Description of the Related Art In recent years, the development of electronic devices and
With the spread, these devices and magnetic recording media,
Must be protected from the adverse effects of static electricity and electromagnetic waves
As the protective material, a sheet material, for example,
Demand for covering sheet material and packaging sheet material is large
It has become to. [0003] The influence of static electricity on conventional electronic devices
Carbon powder, carbon fiber, gold to protect from
Metallic foil, or conductive containing conductive material containing metal powder
Sheets are used. However, such a conventional implementation
Does the conductive sheet affect electronic devices due to electromagnetic waves?
Are not sufficiently effective for protection purposes
It is. For example, MRI (nuclear magnetic resonance diagnostic equipment)
Susceptible to strong interference from external electromagnetic waves
Therefore, MRI is shielded by a 2cm thick iron plate
I have. With such a thick shielding material,
The weight becomes extremely large, and its production and processing
Cause difficulty. In addition, the most important
The disadvantage is that the iron plate itself tends to be magnetized. [0004] Conventional electromagnetic wave shielding materials as described above
Attempts to use amorphous metal to eliminate disadvantages
Was. Amorphous metal has excellent shielding against electromagnetic waves.
Has the same effect as it is, and when the load is removed,
Has the advantage of returning to the original state and not being magnetized.
ing. However, amorphous metals have been
For electromagnetic shielding materials (for example, iron plate),
Have such problems. (A) Generally, the thickness of the amorphous metal material is 100 μm.
m or less (most of the commercially available amorphous metal thin films are 50 μm
The following thickness is limited to
It is difficult to obtain an amorphous metal material. (B) Generally, an amorphous metal material is 100 mm or less.
Supplied in width (most commonly less than 20 mm)
It is difficult to obtain products with a wider width
You. (C) Therefore, a wide and considerable thickness, for example, 1
Amorphous metal material with thickness greater than 00 μm
It is difficult to get. (D) For this reason, a wide sheet of amorphous metal material is used.
It could not be used as a material. [0006] SUMMARY OF THE INVENTION The present invention
Using an amorphous metal thin film
Electromagnetic waves with width and thickness and sufficient strength for practical use
An object is to provide a shielding laminated sheet. [0007] SUMMARY OF THE INVENTION An electromagnetic wave shield according to the present invention.
Laminated sheets are parallel to each other and 5 to 100
Multiple amorphous metal ribbons with a thickness of μm
At least one amorphous metal thin film layer comprising:
At least one layer having a thickness of 0.1 to 100 μm;
At least including an amorphous metal thin film layer and a fiber fabric
A single layer of fiber cloth reinforcing layer is laminated in an arbitrary order; and
Bonded to each other by an adhesive, and
At least one fiber fabric of the reinforcing layer is made of a flexible resin.
Characterized by being impregnated or coated
You. The flexible resin material contains a conductive substance.
Is preferred. [0009] DETAILED DESCRIPTION OF THE INVENTION Recently, amorphous metals have been
Attempts have been made to use them for various purposes based on their properties.
You. Generally, an amorphous metal thin film has a width of 2.54-1.
It is supplied as a 0.16 cm ribbon-shaped material,
Regarding the increase in width, in the near future, a small width of 20.32 cm
Is expected to be supplied.
The supplied amorphous metal thin film is 50 μm
Hereinafter, it generally has a thickness of 5 to 50 μm.
In rare cases, some have a thickness of about 100 μm
Absent. Conventionally, a ribbon-shaped or small
The (thin) width material is a card case or packaging and storage material for small items
Can only be used as a
Use for covering sheets that require a wide width of cm
It was considered almost impossible. The electromagnetic wave shielding laminate sheet of the present invention
In other words, the amorphous metal thin film has the same supply width,
Or, if necessary, use it by joining it to the desired width.
It is. In FIG. 1, the electromagnetic wave shielding property of the present invention is shown.
The amorphous metal thin film layer 1 used for the laminated sheet is
Multiple amorphous metal ribs arranged parallel to each other
2. FIG. 2 shows an electromagnetic wave shield according to the present invention.
The amorphous metal thin film layer contained in the functional laminated sheet
In a laminate with an amorphous metal thin film layer,
Amorphous metal thin film consisting of amorphous metal ribbon 2
Non-amorphous metal thin film layer 3 is laminated on film layer 1
The layer body 4 is configured. The electromagnetic wave shielding laminated sheet of the present invention is preferably used.
In a preferred embodiment, as shown in FIG.
The amorphous metal thin film layer 1 and the non-amorphous gold
The laminated body 4 composed of the metal thin film layer 3 and the flexible resin material
Fiber reinforced layer containing more impregnated or coated fiber cloth
5 are stacked. Amorphous metal thin film useful in the present invention
As a film, generally, iron is a main component, and boron,
Silicon, carbon, nickel, cobalt, and molybdenum
Amorph obtained by adding at least one member selected from such as
It is preferred to be selected from a gas alloy. For example, Arai
Domestic trademark: METGLAS No. 2605SC (F
e: 81%, B: 13.5%, Si: 3.5%, C: 2
% Of an amorphous alloy), No. 2605S-2 (Fe:
78%, B: 13%, Si: 9% amorphous alloy
No. 2605-CO (Fe: 67 parts, B: 14)
Parts, Si: 1 part, Co: 18 parts of an amorphous alloy),
No. 2826-MB (Fe: 40%, Ni: 38%, M
o: 4%, B: 18% amorphous alloy)
Can be In addition, the above-mentioned alloy system containing iron as a main component
An alloy system containing cobalt as a main component (for example, Co₉₀Zr
_Ten, Co₇₈Si_TenB₁₂, Co₅₆Cr₂₆C₁₈, Co₄₄Mo
₃₆C₂₀, Co₃₄Cr₂₈Mo₂₀C₁₈), Nickel as main component
Alloy system (for example, Ni₉₀Zr_Ten, Ni₇₈Si
_TenB₁₂, Mi₃₄Cr_{twenty four}Mo_{twenty four}C₁₈), And other gold
Alloys based on metals (eg, Pd₈₀Si₂₀, Cu₈₀
Zr₂₀, Nb₅₀Ni₅₀, Ti₅₀Cu₅₀) Etc. are also available
You. Further, the amorphous metal thin film has
Perforated thin film within a range that does not substantially affect wave shielding
It may be. These amorphous metal thin film materials are
As described above, they are supplied in the form of ribbons or narrow sheets.
In many cases, the electromagnetic wave shielding laminate sheet of the present invention is used.
When using these in a list, use multiple resources as necessary.
Bon or thin sheet amorphous metal thin film material
Materials are arranged in parallel with each other to form a wide sheet,
Or, if necessary, connect the opposite side edges with conductive
Bonded with adhesive or solder to form a wide
To be in the shape of a sheet. Create a wide thin film from multiple ribbons
When the ribbon is used, the ribbon
May be arranged to extend parallel to the longitudinal axis direction of the
Or it is arranged to extend in a direction perpendicular to this
May be. Amorphous metal thin films are particularly sensitive to magnetic fields.
Although it has a loose shield effect, it
The field effect is not as high as the shielding effect on magnetic fields. The electromagnetic wave shielding laminate sheet of the present invention comprises:
Dimensional problems of amorphous metal thin film and electric field
In order to solve the problem in the shielding effect against
Non-amorphous metal thin film on amorphous metal thin film
Layer integration. Recently, a non-amorphous metal thin film (foil) has been
To be used for various purposes based on the characteristics of
I have. Generally, non-amorphous metal thin film is 70cm or less in width
, Generally supplied as narrow material with a width of 5 to 60 cm
Have been. Recently, rolled iron foil 96cm wide, 120cm wide
Electrolyte iron foil and the like have been supplied. Also non-amo
Rufus metal thin film (foil) is 0.1 μm to 100 μm
It has a thickness. Conventionally, a ribbon-shaped or small
(Thin) width material is required to be wide
It is almost impossible to use it for covering sheets
I was In the present invention, the non-amorphous metal thin film is
Sheets of desired width together with amorphous metal thin film
Is used. The above-mentioned general commercially available non-amorphous metal thin film material
Materials include titanium, beryllium, copper, stainless steel
, Other width about 6cm, thickness 1.4μm ~ 4.9μ
m ultra-thin metal foil, titanium, beryllium copper, copper alloy (phosphorus
(Bronze, brass, bronze), nickel silver, aluminum alloy, stainless steel
Less steel, nickel, permalloy, nickel-black
Alloy, niobium, 42 alloy, palladium, tantalum,
Tin, lead, zinc, iron, gold, silver, silver alloy, platinum and other widths
General metal foil of about 10cm, thickness of 5-100μm, titanium
Copper, beryllium copper, nickel, gold, silver, platinum, palladium
, Aluminum, bronze, silver alloy, other 3-4cm wide
Ultra-thin foil, about 0.3-1.0 μm thick, titanium
Copper, copper and copper alloys (beryllium copper, copper bronze, phosphor bronze, yellow
Copper, inconel, constantan) nickel and nickel
Alloy, aluminum and aluminum alloy, niobium, tantalum,
Iron, stainless steel, gold, silver, platinum, palladium,
Rare metal alloy, zinc, lead, tin, etc. About 5cm in width, thickness
0.1-100 μm thin film, especially 1.0-1.5 μm
Ultra-thin foil and at least one of the above metals
Metal thin film including metal compound thin film as main component
(Foil) and the like. Also,
Non-amorphous metal thin films are effective in shielding electromagnetic waves.
The porous thin film may be used as long as there is no qualitative effect. These non-amorphous metal thin film materials are:
Supplied in the form of ribbon or narrow sheet as described above
In many cases, the electromagnetic wave shielding laminate
In order to use these on a board, you need to use multiple ribbons.
Or thin sheet non-amorphous metal thin film material
Are arranged in parallel with each other to form a wide sheet, or
If necessary, attach their opposing side edges to adhesive or solder.
To form a wide sheet having a desired width.
You. In addition, non-amorphous metal thin film
It may be formed using metal powder. Or non-amol
From a thin wire made of fass metal to a knitted or woven or nonwoven fabric
This is used as a non-amorphous metal thin film
You may. The non-amorphous metal thin film as described above is
Some of them are lipophilic and have excellent seal against magnetic fields
Effect, but especially excellent against electric fields.
Has a green effect. Protection of electronic equipment as described above
In, the electromagnetic wave energy by the electromagnetic wave shielding means
Absorbs or reflects light,
Make sure that electromagnetic energy is not
And is important. Electromagnetic wave by this electromagnetic wave shielding means
The degree of energy decay is expressed in decibels (dB).
The higher the value, the lower the electromagnetic shielding material
The decay effect is large, which is preferable. The electromagnetic wave shielding laminate sheet of the present invention
And its electromagnetic shielding effect is included in it
Almost depends on the shielding effect of the metal thin film, generally 10dB
Or more, and preferably 30 dB or more.
More preferably, it is more preferably 60 dB or more.
More preferably, it is 0 dB or more. The electromagnetic wave shielding laminate sheet of the present invention
And amorphous metal thin film and non-amorphous metal
Plating where at least one of the thin films is made of conductive metal material
It may have a layer. As a conductive metal for plating,
For example, copper, nickel, cobalt, iron, aluminum,
Gold, silver, tin, zinc and two or more selected from these
An alloy or the like can be used. As described above, the amorphous metal thin film and / or
Or conductive on at least one surface of non-amorphous metal thin film
If a conductive metal is used, the resulting electromagnetic wave
Shielded laminated sheets are made of amorphous metal thin films and non-metallic
Conductivity to electromagnetic wave shielding property of amorphous metal thin film
The excellent electric field shielding property of the conductive metal plating layer is added,
Electromagnetic wave shielding laminated sheet as a whole, from low frequency to high
Excellent shielding effect for a wide range of electromagnetic waves up to frequencies
Can be shown. In addition, the conductive metal plating layer
Morphus metal thin film and non-amorphous metal thin film
The effect of improving solder jointability and facilitating the formation of wide thin films
There is fruit. Further, the amorphous metal thin film and / or
Conductive metal plating layer contained in non-amorphous metal thin film
Preferably has a thickness of 0.1 μm or more,
More preferably, it has a thickness of about 0.1 to 5 μm.
No. Amorphous metal thin film layer, non-amorphous metal
Rust preventive agent or other material on the thin film layer or its metal plating
A thin protective film may be formed. The electromagnetic wave shielding laminate sheet of the present invention
And at least one amorphous metal thin film layer
At least one non-amorphous metal thin film layer may be in any order
It may be laminated and integrated in the beginning. In this case, the laminated one
Of amorphous metal thin film layers
Rufus metal laminate may be formed,
With multiple non-amorphous metal thin film layers integrated
May form a non-amorphous metal laminate
No. As described above, the amorphous metal thin film
Each has a thickness of 5 to 100 μm.
Ming's amorphous metal thin film laminate has a total thickness of 50 μm.
Preferably, it has a thickness of ~ 5,000 μm.
More preferably, it has a thickness of 0 to 5,000 μm
No. For this reason, the electromagnetic wave shielding laminate sheet of the present invention
In the calculation, the amorphous metal thin film laminate
1,000 sheets, preferably 2 to 200 sheets of amorphous
It is preferable that the metal thin films are laminated and integrated. In the electromagnetic wave shielding laminate sheet of the present invention,
The amorphous metal thin film stack has at least one mesh.
A keyed amorphous metal thin film layer and at least one mesh
And an amorphous metal thin film layer having no metal layer.
There may be. Thus, one of the amorphous metal thin film layers
Product cost is reduced by omitting the plating layer from the part
To obtain the desired electromagnetic wave shielding properties.
Wear. The electromagnetic wave shielding laminate sheet of the present invention
And the non-amorphous metal thin film is generally 0.1 to 10
Since it has a thickness of 0 μm, a non-amo
Rufus metal thin film laminate has a thickness of 50 to 5,000 μm.
Having a thickness of 50 to 3,000 μm
More preferably. The thickness of the non-amorphous metal thin film laminate is
When it is larger than 5,000 μm, the rigidity of the laminate is excessive.
And it is difficult to deform, drape property is insufficient and sharp
An effective cutting surface may be formed, resulting in a danger in operation. The electromagnetic wave shielding laminate sheet of the present invention
And an amorphous metal thin film layer and non-amorphous gold
In order to bond (adhere) the metal thin film layer to each other,
An adhesive (adhesive) is used. Adhesion (adhesion)
Although it may be performed, the electromagnetic wave shielding laminate sheet
Leave a blank area to increase flexibility, for example,
It is good to wear (adhesive). Many amorphous metal thin film layers
And / or laminating non-amorphous metal thin film layers together
When bonding (adhesive), bonding with adhesive (adhesive)
The (adhesive) areas overlap each other and localize in the resulting laminate
Adhesive so that parts of different thickness are not formed
(Adhesive) so that the adhesive (adhesive) areas do not overlap each other,
Distributed almost evenly in the laminate, thereby providing thickness, wind
It is preferable to maintain the uniformity of the combination. The adhesive (adhesive) is used for a plurality of laminated sheets.
Amorphous and / or non-amorphous metal thin film
Conductive or semi-conductive to connect them together
Preferably, it further has rust resistance.
It may be. For types of such adhesives (adhesives)
There is no special limitation, depending on the purpose of use
It can be arbitrarily selected and used. For example, use ring
Depending on the environment, it may have high cold resistance or high heat resistance
Which should be selected and used. Generally, at least one layer in the laminate
Amorphous or non-amorphous metal thin film layers
May be bonded (adhesive) with an adhesive (adhesive)
No. Adjacent to each other in this adhesion (adhesion), overlapping
Over the entire surface of the amorphous or non-amorphous metal thin film layer
An adhesive (adhesive) may be applied and fixed. Only
In this case, when the laminates are bent, they adhere to each other
(Adhesive) amorphous or non-amorphous metal thin film
The degree of freedom of mutual displacement between the film layers becomes insufficient. like this
In order to solve various problems, multiple layers of amorphous or
Means that non-amorphous metal thin film layers are adhered to each other
Is not preferred, but in this case more than one
Or non-amorphous metal thin film layer
You. The amorphous or non-amorphous material of the present invention
Within the stack of metal thin film layers, each amorphous or non-
Amorphous metal thin film layers are adjacent and overlapping
Partially adhered (adhesive) to layer, other than adhesive (adhesive) part
Are preferably capable of relative displacement with respect to each other.
No. Therefore, each amorphous or non-amorphous metal thin film
The side edge of the membrane layer relative to its adjacent, overlapping layer
Part only, or at least one line or dot
(Adhesion) by the layer of adhesive (adhesive) placed on
It is preferred that For example, multiple layers of amorpha
Or non-amorphous metal thin film layer
And its constituent amorphous or non-amorphous metal thin film
The layers may be at least one linear or dot-like or
Adhesion by adhesive (adhesive) layer distributed in the mixture
(Adhesion) is preferred. Adhesion in this manner
Multiple layers of amorphous or non-amorphous due to (adhesion)
Metal thin film layers are adhered to each other
You. However, amorphous or non-amorphous metal thin film layer
Non-adhesive (adhesive) parts mutually displace each other according to bending
This facilitates bending of the laminate layer.
In addition, breakage of the laminate layer due to bending is prevented. The shape of the adhesive (adhesive) portion may be one or more
It may be a line, a curve, a mixture of these, or one
It may consist of the above points,
The total of the (adhesive) part is the amorphous or non-amorphous
90% or less of the bonding (adhesion) area of the thin metal film layer
Is preferably within a range of 1 to 90%.
Is more preferred. Amorphous or non-amorphous metal thin film
Dot or linear adhesive (sticky) contained in the layer stack
The area of application of the agent) locally creates uneven thickness in the laminate layer
Almost evenly distributed so that they do not overlap with each other
It is preferable that the uniformity is almost uniform.
Is obtained. [0042] The electromagnetic wave shielding laminate sheet of the present invention comprises:
Amorphous metal thin film layer, non-amorphous metal thin film layer
And at least one reinforcing layer containing fiber fabric (hereinafter referred to as
Are referred to as a fiber fabric reinforcing layer) are laminated in an arbitrary order,
And they are adhered to each other by an adhesive. This fiber cloth supplement
The fiber cloth contained in the strong layer is referred to as a fiber cloth for a reinforcing layer.
For example, in the electromagnetic wave shielding laminate sheet of the present invention,
And amorphous metal thin film and non-amorphous metal thin film
Even if one fiber fabric reinforcing layer is laminated on the laminate of
Between the two opposing fiber reinforcement layers.
The thin film laminate may be packed and integrated,
Alternatively, an amorphous metal thin film laminate and non-amorphous gold
The fiber fabric reinforcement layer is inserted and united with the metal thin film laminate.
May be. This fiber cloth reinforcement layer is conductive or semiconductive
It is desirable that The fiber cloth reinforcing layer is the electromagnetic wave seal of the present invention.
The flexible laminate sheet has the desired flexibility, compression elasticity, and impact resistance.
It can provide cushioning and rupture resistance against hitting and pressing
it can. That is, the electromagnetic wave shielding laminated sheet is bent
When an external force such as an external force acts, the fiber cloth reinforcing layer
By absorbing this external force by forming, amorphous gold
Reduce the elongation and compression of the metal film
Prevents breakage and breakage of Rufus metal thin film and permanent deformation
Exhibits a buffering action to prevent (fold formation)
You. Such an electromagnetic wave shielding laminate sheet is
Sheets for covering tronics equipment or sheets for packaging and storage
It is useful as a project. The electromagnetic wave shielding laminate sheet of the present invention contains
At least one layer of the reinforcing fiber fabric
The fiber fabric is impregnated or covered with a flexible resin material.
Have been. Such flexible resin materials include natural rubber.
Rubber, neoprene rubber, chloroprene rubber, silicone rubber
System, Hypalon or other synthetic rubber, or PVC resin,
Ethylene-vinyl acetate copolymer (EVA) resin,
Krill resin, silicone resin, polyurethane resin, poly
Ethylene (PE) resin, polypropylene (PP) resin,
Using polyester resin, fluororesin or other synthetic resin
Can be Such material also has good waterproof
With desired properties for the obtained electromagnetic wave shielding laminated sheet
Can provide waterproof, flame retardant and mechanical strength
You. The flexible resin layer is more preferably 0.05 mm or more.
Preferably has a thickness of 0.05 to 1.0 mm,
Further, it preferably contains a conductive substance. These flexible resin layers are made of rubber as described above.
Or resin film, solution, paste or straight
Using known methods, such as topping, calendar
Ring, coating, dipping, etc.
Thus, the fiber cloth can be impregnated or coated. these
Plasticizers, stabilizers, colorants, ultraviolet
X-ray absorbers and other function-imparting agents such as flame retardants and flame retardants
Agents and the like may be included. These flexible resin layers are porous, that is,
That is, it may be a foam layer. Such a foamed porous layer
It may be a rigid foam as long as it has the desired flexibility
However, it is generally preferred that the foam is a flexible foam. The porosity of the foamed porous layer is 50 to 99%.
(Expansion ratio: 2 to 100 times), preferably 8
0 to 98% (expansion ratio: 5 to 50 times)
preferable. Usually a foaming ratio of 20 to 60 times is used.
It is. The compression resistance of the foamed porous sheet material layer is 2
10 kg / cm at 5% compression^Two Depends on application if below
Is practical, but generally 0.5kg / cm^Two Below
Preferably, 0.1 kg / cm^Two To be
More preferred. There is no particular limitation on the thickness of the foamed porous layer.
Arbitrarily according to the application of the electromagnetic wave shielding laminated sheet
It can be set, but in general,
Within the range of 1 to 50 mm.
More preferably. The foamed porous layer is bound to the fiber cloth.
However, create a porous foam sheet in advance and
It may be bound using an adhesive, or a foamed porous sheet may be used.
The adhesive surface portion of the metal may be melted by heat. Ma
The foamed porous layer may be formed by chemical foaming.
Or apply a polymer paint containing air bubbles,
It may be formed by a so-called mechanical foaming method that solidifies. The fiber including the flexible foamed porous layer as described above
The textile reinforcing layer is the electromagnetic wave shielding laminate sheet of the present invention.
May be formed on both sides, or formed on only one side
May be done. In the latter case, the electromagnetic wave shielding property of the present invention
On the other side of the laminated sheet, a flexible resin
A fiber fabric reinforcing layer including a porous layer may be bound.
No. Generally, amorphous or non-amorphous gold
The fiber fabric reinforcement layer laminated on the metal thin film layer
Directionality in tensile strength of wave shielding laminated sheet,
Effective for covering uneven strength and low tear strength
It is. The fiber fabric for the reinforcing layer may be a natural fiber, for example,
Inorganic fibers such as cotton and hemp, such as glass fibers and carbs
Recycled fibers, such as viscose, metal fibers, etc.
Semi-synthetic fibers such as rayon, cupra, etc.
And tri-acetate fibers and the like, and synthetic fibers, such as
For example, polyamide (nylon 6, nylon 66, etc.) fibers,
Polyester (polyethylene terephthalate etc.) fiber,
Aromatic polyamide fiber, acrylic fiber, polyvinyl chloride
At least selected from fibers, polyolefin fibers, etc.
Is also composed of one kind. The fibers in the fiber fabric are short fibers
Weft yarn, long fiber yarn, split yarn, tape yarn
And any shape such as
The fabric may be any of a woven fabric, a knitted fabric, a nonwoven fabric, or a composite fabric thereof.
It may be. Also, as a fiber fabric for the reinforcing layer,
Layer the warp and weft yarns so that they intersect
The woven fabric formed by pressing the woven fabric with a twine is particularly preferable.
In addition, the obtained electromagnetic wave shielding laminate sheet is flexible.
If it is necessary to use
It is preferably a coarse knitted fabric and has high strength
If necessary, use a relatively dense knitted fabric.
It is preferable to form it. Further, a fiber fabric for a reinforcing layer
Is preferably conductive or semiconductive. In general, amorphous or non-amorphous gold
The tear strength of the metal thin film is as low as almost zero,
Breaks easily with load. Also such amorphous metal
Is relatively weak in tensile strength, and
Large variation. For example, 25μm thick amorphous
The tensile strength of the metal thin film is measured according to JIS-L-1096 (19
79), 6.12 of "General fabric test method", tensile strength
And elongation 6.61 (1) According to the A method (strip method).
Based on, width: 3cm, gripping interval: 20cm, pulling speed:
Its tensile strength is measured under the condition of 200 mm / min.
Is 65-125kg / 3cm, average 100kg / 3cm
Relatively weak and large variation in measured values
In addition, amorphous metal thin films are generally
Since they are provided in a bon shape, they are arranged in parallel
If they are made into a sheet, even if they
At the side edges where they are soldered or glued together.
Sheet has insufficient tensile strength in the lateral direction, and
There is a problem that the variation is large. So, the package
Electromagnetic wave shielding laminated sheet used for wearing and heavy coating
Or local friction or a local external force
The electromagnetic wave shielding laminate sheet used for
It is reinforced by a textile reinforcing layer. The tensile strength of the fiber fabric for the reinforcing layer is as follows.
Tensile strength of amorphous or non-amorphous metal thin film layer
Preferably, it is higher than the above. Also, a fiber fabric for a reinforcing layer
The tensile strength of the
Of tensile strength of fac and non-amorphous metal thin film layer
Preferably, it is higher than the minimum value. For such reinforcement layers
The fiber cloth is formed by drawing the electromagnetic wave shielding laminate sheet of the present invention.
Reinforce the tensile strength and reduce the variation
Can be. Further, the elongation at break as a fiber fabric for a reinforcing layer is
If less than 5% is used, amorphous metal thin film and
Between non-amorphous metal thin film and fiber fabric reinforcing layer
Is small, and therefore, the SS load curves of both are close to each other.
Similar, therefore, the electromagnetic wave shielding laminated sheet is relatively
High tensile strength can be exhibited. Also, the elongation at break
Equal to that of amorphous metal thin film, or 5% or less
The lower fiber cloth is used as a fiber cloth reinforcement layer,
When combined with the layered body, the amorphous
All you need to do is place metal ribbons in parallel.
It is not always necessary to bond ribbons with an adhesive
Disappears. Such seamless amorphous and non-
Amorphous metal thin film has good appearance without noticeable seams
Is shown. The fibers constituting such a fiber fabric for a reinforcing layer
130 kg / mm for fiber^Two Above tensile strength and 5% or less
Those having a breaking elongation of are preferred. Such performance
There is no particular limitation on the type of fiber that it has, but the following are examples
Is shown.Fiber Tensile strength (kg / mm ^Two ) Elongation at break (%)   Glass fiber 350-600 3-4   Carbon fiber 200-300 1.5-0.5   Metal (steel) fiber 240 1.7   Aromatic aramid fiber 285 2.0-5.0 These high-strength fiber fabrics are required to achieve the above effects.
It is effective but has low elongation and low flexural strength
It is. Therefore, the application of the electromagnetic wave shielding laminated sheet
If high flex resistance is required for the
Other fibers with high elongation and high flexural strength, or
It is preferable to mix yarns or fabrics composed of these.
Although there is no particular limitation on the type of such high elongation fiber,
Examples of these are as follows.Fiber Tensile strength (kg / mm ^Two ) Elongation at break (%)   Polyester fiber About 115 About 13   Aliphatic polyamide (nylon) fiber About 100 About 19 In addition to the above, polyvinyl chloride fiber,
Also use krill fiber and polyolefin fiber
Can be. The surface of the fiber fabric for the reinforcing layer is
The required smoothness and / or
Has anti-slip properties or desired colors, patterns, etc.
The above properties may be provided on the fiber fabric for the reinforcing layer.
It may be subjected to a treatment for applying, or may be provided with a coating.
Good. As the fiber fabric for the reinforcing layer, 130 kg / mm^Two
A fiber having the above tensile strength and a cutting elongation of 5% or less
It is preferable to use a fabric containing fibers. In addition, amorphous or non-amorphous gold
130 kg / mm on one side of the stack of metal thin film layers^Two Over tension
Including high-strength fibers having a tensile strength and a cut elongation of 5% or less.
And a fibrous fabric reinforcing layer laminated on the other surface, and 13
0kg / mm^Two Lower tensile strength and cut elongation higher than 5%
Laminated with a fiber cloth reinforcing layer containing high elongation fiber having
You may. Further, the fiber fabric for the reinforcing layer is 130 kg / mm
^Two Having the above tensile strength and cutting elongation of 5% or less
High strength fiber and 130kg / mm^Two Lower tensile strength,
Mixtures with high elongation fibers having a breaking elongation higher than 5%
May be included. Further, the fiber fabric reinforcing layer is 130 kg / mm^Two
High tensile strength and cutting elongation of 5% or less
At least one fiber fabric layer comprising strength fibers;
kg / mm^Two Lower tensile strength and elongation at break higher than 5%
At least one fiber cloth containing high elongation fibers
And a layer. Further, the electromagnetic wave shielding laminate of the present invention
A fiber fabric layer is laminated on at least one surface of the sheet.
And a flexible resin material is impregnated or coated on the fiber fabric layer.
It may be. The electromagnetic wave shielding laminate sheet of the present invention
The laminated fiber fabric reinforcing layer is an electromagnetic wave shielding laminate sheet
When formed on the outermost surface of the fiber fabric layer,
The fiber fabric layer constituting the upper surface of the carpet, for example, pie
Fabric layer, or constitute a wallpaper sheet
It may be a wallpaper-like sheet layer. In the former case, it is obtained
Laminated carpets are useful as electromagnetic shielding rugs
Yes, in the latter case, the obtained electromagnetic wave shielding laminate sheet
Is useful as an electromagnetic shielding wallpaper. The electromagnetic wave shielding laminate sheet of the present invention
Even if both of the outer surfaces are formed by the fiber fabric reinforcing layer
Well, or one of them is formed by a fiber fabric reinforcement layer
In this case, the other one is made of a flexible resin material.
Layer. [0065] DESCRIPTION OF THE PREFERRED EMBODIMENTS The electromagnetic wave shielding laminate sheet of the present invention will be described below.
Will be further described with reference to examples.Example 1 Amorphous alloy thin film (Fe: 81%, B: 13.5)
%, Si: 3.5%, C: 2%, Trademark: METGLAS
  No. 2605SC, manufactured by Allied, 7.62 cm wide, thick
13 ribbons consisting of 25 μm ribbons)
4.9μm thick and 10cm wide stainless steel
Steel metal thin film ribbon (tensile strength 12-20kg / 3
cm, average tensile strength 18kg / 3cm, elongation at break 0.7%)
Eleven sheets are arranged in parallel, and these are made of synthetic rubber adhesive (trademark: S
C12N, manufactured by Sony Chemical Corporation)
A laminate was obtained. This thin film laminate has a 45 dB electromagnetic wave
Showed the Ludo effect. A synthetic rubber adhesive is applied to both sides of the thin film laminate.
(Trademark: SC 12N, manufactured by Sony Chemical)
And one side of the glass fiber fabric for FRP (trademark: KS-
2671, manufactured by Kanebo Glass Fiber Co., Ltd., thickness 0.22 mm, eye
210g / m with^Two , Plain weave, 19 warps / 25.4mm, weft 1
9 / 25.4mm, fiber tensile strength 350kg / mm^Two , Fiber
Fiber elongation at break of 3%, tensile strength of fabric, 11 in both directions
1.6 kg / 3 cm, elongation at break of fabric, both in longitudinal and longitudinal directions.
0%), and the other side of the
Filament plain sack cloth: Was adhered to prepare a base layer sheet. This plain woven fabric is thick
Length: 0.3mm, weight: 40g / m^Two , Fabric tensile strength:
25kg / 3cm in both process and weft, elongation at break of fabric: both directions
Both are 15%, fiber tensile strength: 110kg / mm^Two ,fiber
Elongation at break: 13%. The above-mentioned base layer sheet is made flexible and waterproof having the following composition.
It was immersed in the resin coating solution.Component amount   80 parts by weight of polyvinyl chloride resin   Butylbenzyl phthalate 68 parts by weight   Epoxidized soybean oil 7 parts by weight   20 parts by weight of calcium carbonate   Cadmium barium stabilizer 3 parts by weight   8 parts by weight of pigment   130 parts by weight of toluene (solvent) The base layer sheet impregnated with the above coating liquid is
Squeeze, adjust the coating liquid adhesion amount to 100%, and in the dryer
Dry at 90 ° C. for 1 minute. Next, this coating layer was heated to 180 ° C.
For 1 minute to gelify and fix the polyvinyl chloride.
The thickness of the obtained flexible and waterproof resin layer was 0.3 mm.
Was. The obtained electromagnetic wave shielding laminate sheet is good.
Good shielding properties against electromagnetic waves and excellent waterproofness,
Has antifouling properties and weather resistance, and is capable of heat fusion bonding
Was something. Due to such excellent heat fusion bonding,
Stainless steel metal thin film
And an amorphous metal thin film in a sheet material (for example, large
Sheet), and can be used with conventional suturing
Failed stainless steel metal film and amorph
Enables the suturing of metal thin films, simplifies their use,
In addition, the field of use can be expanded. Further, in the laminate of this embodiment,
Stainless steel metal thin film ribbon and amol
Fast metal thin film ribbon was not soldered
However, the metal thin film ribbon slips from the home position
It does not overlap with the side edge when soldering.
It has a good appearance without unevenness due to
Was. [0070]Example 2 Amorphous alloy (Fe: 81%, B: 13.5%, S
i: 3.5%, C: 2%, trademark: METGLAS No.
2605SC, manufactured by Allied, 7.62 cm wide, 25 thick
1μm thick copper plating on the entire surface
Was given. 13 amorphous metal ribbons in parallel
Then, the side edges are soldered together to form a wide
Created a chart. Tensile strength of solder joint is 40-86
kg / 3cm, average of 68.6kg / 3cm, tension of solder joint
The strength was rather low. The thickness is the same as that described in Example 1.
4.9μm, 10cm width stainless steel metal thin film
The entire surface of the bon was plated with 1 μm thick copper. this
Copper plated stainless steel metal thin film ribbon
11 sheets are arranged in parallel with each other, and each side edge is 1
Superimposed by cm and formed into a wide sheet without bonding
Done. Both sides of this wide stainless steel sheet
Superimposed on the amorphous metal thin film wide sheet,
A synthetic rubber-based adhesive (trademark: S
C12N, manufactured by Sony Chemical Co., Ltd.)
1cm in pot shape^Three And apply them at a density of 2 pieces.
Glued to the body. The application area ratio of this adhesive is 14.13%
Met. The obtained laminate is a high electromagnetic wave shield of 50 dB.
The effect was shown. The adhesive is applied to the entire surface of one surface of the laminate.
And apply the same FRP gas coating as described in Example 1.
The lath fiber cloth was further coated on the other side with the one described in Example 2.
Attach the same polyester filament plain weave sackcloth
Was. On the obtained laminate, the same flexibility and waterproofness as in Example 1 were applied.
A resin coating layer was formed. The obtained laminate is good for electromagnetic waves.
Shielding properties (50dB), excellent waterproofness, antifouling properties and
Electromagnetic wave sheet that has heat and
It was a laminated sheet having a good property. [0075] The electromagnetic wave shielding laminated sheet of the present invention
Means one or more amorphous metal thin film layers and one or more
Non-amorphous metal thin film layer and one or more fiber fabric reinforcement
Layer, but has sufficient flexibility and bending for practical use.
, Strength, workability, and excellent electromagnetic waves
Excellent electric field shielding effect together with shielding properties
Because it has, electromagnetic wave shielding coating or packaging
In applications such as sheets, rugs, or wallpaper sheets,
Field and field shields can be expected to have a wide range of effects.
It is useful for these applications. In addition, the present invention
Electromagnetic wave shielding laminated sheet is an intermediate in the above applications
Used in combination with either products or finished products
Can also.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a plan view showing a configuration of an amorphous metal thin film layer used for an electromagnetic wave shielding laminate sheet of the present invention. FIG. 2 is an explanatory cross-sectional view of one embodiment of a laminate of an amorphous metal thin film and a non-amorphous metal thin film used in the electromagnetic wave shielding laminate sheet of the present invention. FIG. 3 is an explanatory sectional view of one embodiment of the electromagnetic wave shielding laminate sheet of the present invention. [Description of Signs] 1 ... Amorphous metal thin film layer 2 ... Amorphous metal ribbon 3 ... Non-amorphous metal thin film layer 4 ... Laminate 5 ... Fiber cloth reinforcing layer

Claims (1)

(57) [Claims] At least one amorphous metal thin film composed of a plurality of amorphous metal ribbons having a thickness of 5 to 100 μm arranged in parallel with each other;
At least one non-amorphous metal thin film having a thickness of μm, and at least one fiber cloth reinforcing layer including a fiber cloth are laminated in any order, and are adhered to each other by an adhesive, An electromagnetic wave shielding laminated sheet, wherein at least one fiber cloth of the fiber cloth reinforcing layer is impregnated or covered with a flexible resin material. 2. The electromagnetic wave shielding laminate sheet according to claim 1, wherein at least one of the amorphous metal thin film and the non-amorphous metal thin film has a plating layer made of a conductive metal material. 3. The electromagnetic wave shielding laminated sheet according to claim 1, wherein the fiber cloth reinforcing layer forms at least one outermost surface layer of the electromagnetic wave shielding laminated sheet. 4. The fiber fabric for the reinforcing layer is at least one fiber selected from glass fiber, carbon fiber, metal fiber, polyester fiber, aliphatic polyamide fiber, aromatic polyamide fiber, polyvinyl chloride fiber, polyacryl fiber and polyolefin fiber. The electromagnetic wave shielding laminate sheet according to claim 1, comprising: 5. The electromagnetic wave shielding laminated sheet according to claim 1, wherein the fiber fabric for the reinforcing layer has a tensile strength higher than at least one of the amorphous metal thin film layer and the non-amorphous metal thin film layer. 6. The electromagnetic wave according to claim 1, wherein the reinforcing layer fiber cloth has a tensile strength higher than a minimum value of a tensile strength of at least one of the plurality of amorphous metal thin film layers or the non-amorphous metal thin film layer. Shielding laminated sheet. 7. The electromagnetic wave shielding laminate sheet according to claim 1, wherein the fiber fabric for a reinforcing layer has a breaking elongation of 5% or less. 8. The electromagnetic wave shielding laminate sheet according to claim 1, wherein the fiber fabric for a reinforcing layer comprises a fiber having a tensile strength of 130 kg / mm ² or more and a cutting elongation of 5% or less. 9. The laminate of the amorphous metal thin film layer and the non-amorphous metal thin film layer has a surface of 130 kg /
laminated on a fiber reinforced layer containing high-strength fibers having a tensile strength of not less than ² mm and a breaking elongation of not more than 5%, and having a tensile strength lower than 130 kg / mm ² and a The electromagnetic wave shielding laminate sheet according to claim 1, wherein the laminated sheet is laminated on a fiber cloth reinforcing layer containing high elongation fibers having high cutting elongation. 10. The high-strength fiber in which the reinforcing layer fiber cloth has a tensile strength of 130 kg / mm ² or more and a cut elongation of 5% or less, a tensile strength lower than 130 kg / mm ² and a cut elongation higher than 5% The electromagnetic wave shielding laminate sheet according to claim 1, comprising a mixture with a high elongation fiber. 11. At least one fiber fabric layer containing high-strength fibers, wherein the fiber fabric reinforcement layer has a tensile strength of 130 kg / mm ² or more and a cut elongation of 5% or less; a tensile strength of less than 130 kg / mm ² ; % At least one fiber fabric layer comprising high elongation fibers having a breaking elongation of greater than
The electromagnetic wave shielding laminate sheet according to claim 1. 12. The electromagnetic wave shielding laminate sheet according to claim 1, wherein the flexible resin material is selected from natural rubber, synthetic rubber, and flexible synthetic resin. 13. The electromagnetic wave shielding laminate sheet according to claim 1, wherein the flexible resin material contains a conductive substance.