JP2716427B2 - Electromagnetic wave shielding amorphous metal thin film laminated sheet - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [0001] TECHNICAL FIELD The present invention relates to an electromagnetic wave shielding property.
It relates to an amorphous metal thin film laminated sheet,
More specifically, the present invention is a laminate integrated
Including a laminate consisting of multiple amorphous metal thin films,
Electromagnetic wave seal with excellent shielding effect against magnetic waves
Related to amorphous metal thin film laminated sheets
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. [0006] SUMMARY OF THE INVENTION The present invention relates to
And a thin amorphous metal thin film ribbon
Excellent electromagnetic shielding properties, sufficient for practical use
With the required strength and flexibility, and the desired width and thickness
Electromagnetic wave shielding amorphous metal thin film laminated sheet
Is to be formed. [0007] SUMMARY OF THE INVENTION An electromagnetic wave shield according to the present invention.
Amorphous metal thin film laminated sheet is laminated and integrated
At least one of a plurality of amorphous metal thin films
And a flexible material laminated on the laminate and
At least two coating layers comprising:
The metal thin film is made up of a plurality of
Rufus metal thin film ribbons at their longitudinal edges
With adhesive or solder to have the desired width
It is formed as an integral thin film, and is made of the flexible material.
At least one of the coating layers is a reinforcing fiber fabric layer.
And at least one other layer is a flexible polymer resin layer.
It is characterized by the following. Recently, amorphous metals have been developed based on their properties.
Thus, attempts have been made to use it for various applications. General
The amorphous metal thin film has a width of 2.54 to 10.16 cm.
Supplied as a ribbon-shaped material
In the near future, a small width sheet of 20.32 cm will be provided.
Is expected to be paid. Also supply
The thickness of the amorphous metal thin film is generally 5 to 50 μm.
m thickness, very rarely about 100μm
There are only things that have. 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. [0010] Electromagnetic shielding amorphous gold of the present invention
In the metal thin film laminated sheet, the amorphous metal thin film
The supply width or, if necessary,
Used to join to the desired width. The above-mentioned protection effects of the electronic equipment and
Absorbs electromagnetic wave energy by means of electromagnetic wave shielding
Or reflect off the electronic equipment
The effect of preventing the effect of electromagnetic wave energy
U. Reduction of electromagnetic wave energy by this electromagnetic wave shielding means
The degree of decay is expressed in units of decibels (dB).
The larger the value, the greater the damping effect
And would be preferred. The electromagnetic shielding amorphous gold of the present invention
Electromagnetic shielding effect in metal thin film laminated sheet
Is the seal of the amorphous metal thin film contained in it
Almost depends on the effect
More preferably, it is more preferably 60 dB or more.
It is even more preferable that the value be at least dB. 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
Dot's trade name METGLAS No. 2605SC (F
e: 81%, B: 13.5%, Si: 3.5%, C: 2
% Amorphous alloy), No. 2605S-2 (F
e: 78%, B: 13%, Si: 9% amorphous alloy
No.), No. 2605-Co (Fe: 87 parts, B: 14
Parts, Si: 1 part, Co: 18 parts of an amorphous alloy),
No. 2826-MB (Fe: 40%, Ni: 38%,
Mo: 4%, B: 18% amorphous alloy)
Can be. In addition, the above-mentioned alloys containing iron as a main component
An alloy system containing cobalt as a main component (for example, Co₉₀Zr
_Ten, Co₇₈Si_TenB₁₂, Co₅₆Cr₂₆C₁₈, CO₄₄Mo
₃₆C ₂₀, Co₃₄Cr₂₈Mo₂₀C₁₈), Nickel as main component
Alloy system (for example, Ni₉₀Zr_Ten, Ni₇₈Si
_TenB₁₂, Ni₃₄Cr_{twenty four}Mo_{twenty four}C₁₈And other metals
Alloys (for example, Pd₈₀Si₂₀, Cu₈₀Zr
₂₀, Nb₅₀Ni₅₀, Ti₅₀Cu₅₀) Etc. can also be used. 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 films are formed as described above.
Is supplied in the form of ribbon or narrow sheet
In many cases, the electromagnetic shielding amorphous of the present invention
When these are used for metal thin film laminated sheet,
Amorph in multiple ribbon or narrow sheet depending on
Metal thin films are arranged in parallel with each other and their opposite
Join the side edges with adhesive or solder to have the desired width.
Wide sheet. Adhesive used at this time
Is preferably a conductive adhesive or a pressure-sensitive adhesive. Multiple
When creating a wide thin sheet from a ribbon of
Is extended parallel to the longitudinal axis of the resulting wide sheet.
May be arranged so that it extends in a direction perpendicular to this.
It is even better if they are arranged so as to be in contact. Also Amorph
The metal thin film is formed using amorphous metal powder.
May be implemented. Or a thin wire made of amorphous metal
Woven or non-woven sheet,
It may be used as a thin metal film. Is the adhesive conventional
Those used, for example, amino group, imino group,
A containing ethyleneimine residue and alkylenediamine residue
Acrylate, acrylate containing an aziridinyl group,
Aminoester modified vinyl polymer, aromatic epoxy adhesive
Agent, amino nitrogen-containing methacrylate polymer, other
Adhesives or adhesives and, for example, silver powder, copper powder, carbon powder,
Excellent electrical conductivity of graphite, silver-plated fine particles, etc.
(Modified) epoxy, silicone with added filler
System, phenol system, acrylic system, polyimide system, polybe
Imidazoles, silicone imides, and others
It can be selected from a resin adhesive or an adhesive. An amorphous metal thin film is a
Shielding effect, but especially good against magnetic fields
Has an effect. Amorphous gold shielding electromagnetic wave of the present invention
The amorphous metal thin film in the metal thin film laminated sheet
Even if it is formed from a morphus metal thin film alone
Or a substrate made of an amorphous metal thin film;
A conductive metal plating layer covering at least one surface thereof
It may be composed of With conductive metal for plating
For example, copper, nickel, cobalt, iron, aluminum
, Gold, silver, tin, zinc and two selected from these
The above alloys and the like can be used. Like this
At least one of the substrates made of an amorphous metal thin film.
With a plating layer obtained by plating conductive metal on the surface
The amorphous metal thin film has a
The electric field shielding property by the metal layer is added, and amorphous gold
The metal thin film as a whole has a wide range of power from low frequency to high frequency.
Excellent shielding effect against magnetic waves
You. In addition, the conductive metal plating layer is made of an amorphous metal thin film.
Amorphous metal thin film rib
This also has the effect of facilitating the formation of a wide thin film. Further, it is contained in the amorphous metal thin film.
The conductive metal plating layer has a thickness of 0.1 μm or more
It is preferable to have a thickness of about 0.1 to 5 μm.
Is more preferable. In addition, amorphous metal thin film or its
Rust inhibitor and other thin protective films are formed on the surface of the metal plating layer
May be. As described above, the amorphous metal thin film
Each of which has a thickness of 5 to 50 μm.
Amorphous metal thin film laminate used for
It preferably has a thickness of 50 μm or more,
More preferably, it has a thickness of 5,000 μm. This
For the amorphous metal thin film used in the present invention
In the layered body, preferably 2 to 200 amorphous
A metal thin film is laminated and integrated in the thickness direction. Electromagnetic wave
Effect of shielded amorphous metal thin film laminated sheet
A large number of amorphous
It is desirable to stack metal thin films. That is, ammo
Use of Rufus metal thin film bonded to a large area
The larger the area, the more uneven the shielding effect
May result in reduced effectiveness or instability.
You. Eliminates such problems and provides a stable shielding effect
It is desirable to stack many thin films in order to obtain
No. The electromagnetic shielding amorphous gold of the present invention
The amorphous metal thin film laminate in the metal thin film laminate sheet is
Amorphous metal thin film with at least one plating layer
And amorphous without at least one plating layer
It may include a metal thin film. Like this
To omit the plating layer from part of the Rufus metal thin film
Required electromagnetic wave seal while lowering product cost
Can be obtained. Lamination and bonding of many amorphous metal thin films
In this case, the adhesive areas of the adhesive or adhesive may overlap each other.
In the resulting laminate, parts with locally different thicknesses are formed.
Glue or glue adhesive area overlap each other to prevent
So that they are distributed almost uniformly throughout the laminate,
Therefore, it is preferable to maintain the uniformity of the thickness and the feeling. The adhesive or pressure-sensitive adhesive is applied to a plurality of laminated
In order to electrically connect the morphus metal thin films,
It is preferably conductive or semiconductive, and furthermore
Can have rust prevention properties. Such an adhesive,
There is no particular limitation on the type of adhesive, depending on the purpose of use
From existing ones, for example, amino group, imino group,
Acrylics containing renimine residues and alkylenediamine residues
Acrylates, acrylates containing aziridinyl groups,
Noester modified vinyl polymer, aromatic epoxy adhesive,
Amino nitrogen containing methacrylate polymer, etc.
Adhesive or pressure-sensitive adhesive, for example, silver powder, copper powder, carbon
Of electrical conductivity of powder, graphite, silver-plated fine particles, etc.
(Modified) epoxy, silico with excellent filler
Phenol-based, acrylic-based, polyimide-based,
Revens imidazole, silicone imide,
Optional conductive or semi-conductive adhesive or adhesive such as other
You can choose to use. For example, in the usage environment
Select a material with high cold resistance or high heat resistance
Select and use. Generally, a plurality of amorphs in a laminate
The metal thin films are adhered or adhered to each other with an adhesive or tackifier.
It may be worn. In this adhesion or adhesion,
The whole of the amorphous metal thin film that is vertically adjacent and overlaps
An adhesive or a pressure-sensitive adhesive may be applied and fixed to the substrate. Only
In this case, when the laminates are bent,
Is the freedom of mutual displacement between adhered amorphous metal thin films
The degree becomes insufficient. This is especially true when adhesives are used.
It is noticeable when. To solve such problems
Has multiple amorphous metal thin films adhered or adhered to each other
Is not preferred, but in this case more than one
It becomes difficult to integrate the metal thin film. Electromagnetic shielding amorphous gold of the present invention
Each amorphous metal thin film in the metal thin film laminated sheet
Partially adheres to adjacent layers above and below
Or adhered to each other at parts other than the adhesive or adhesive parts.
Preferably, a pairwise displacement is possible. For this reason each ammo
Rufus metal thin film is adjacent and overlaps above and below
At least one linear or dot-like arrangement with respect to the layer
Adhered or adhered by a layer of adhesive or pressure sensitive adhesive
Is preferred. For example, several amorphous metal thin films
In a laminate consisting of
The membrane may be in the form of at least one line or dot or these
Adhesive with adhesive or adhesive layer distributed in mixed state
Or it is preferable to be adhered. Adhesion in this manner
Or, a plurality of amorphous metal thin films contact each other due to adhesion.
Wear and integrated. However, the amorphous metal thin film
The bonded parts can be displaced relative to each other according to the bending.
This makes it easier for the laminate to bend and
The accompanying breakage of the laminate is prevented. The shape of the adhesive portion may be one or more straight lines, curved
Wire, or a mixture thereof, or one or more
It may be composed of dots,
The total is 90 to the adhesion area of the amorphous metal thin film.
% Or less, preferably within a range of 1 to 90%.
More preferably. [0027] Included in laminate of amorphous metal thin film
The area of application of the dot or linear adhesive or pressure-sensitive adhesive is a laminate
Overlap with each other so as not to cause uneven thickness locally.
It is preferable to distribute them almost uniformly so that
As a result, a laminate having almost uniform solidity can be obtained. Electromagnetic shielding amorphous gold of the present invention
The metal thin film laminated sheet is composed of a plurality of laminated amorphous
At least one laminate made of a thin metal film;
Laminated on the laminate and made of a small amount of flexible material
At least two coating layers,
The film consists of a plurality of amorphous gold
Glue the metal thin film ribbons together at their long side edges
Or an integrated thin film with the desired width joined by soldering
And a coating layer made of the flexible material.
At least one layer is a reinforcing fiber fabric layer, and
At least one layer is a flexible polymer resin layer. The coating layer made of the above flexible material comprises a plurality of layers.
It may be formed between amorphous metal thin film laminates
And may be formed at arbitrary intervals, or
Is located on at least one outermost surface of the laminate
You may. The coating layer made of this flexible material is conductive or
Desirably, it is semiconductive. Multiple amorphous gold
From conductive or semiconductive flexible materials between metal thin film stacks
When a coating layer is provided, multiple plated or plated
The entire non-stick amorphous metal thin film stack
It becomes conductive and a favorable result is obtained. In particular, plated
If an amorphous metal thin film is used,
A coating layer made of a conductive or semiconductive flexible material between the bodies.
By providing this, it is possible to seal the electric field as well as the magnetic field.
And improved electromagnetic shielding performance
A fus metal thin film laminated sheet is obtained. Of the above-mentioned covering layer made of a flexible material,
The flexible polymer resin layer is made of a flexible polymer resin.
Film or sheet.
Such a film or sheet may be porous, or
May be non-porous. The coating layer made of a flexible material is used for the electrode of the present invention.
The magnetic wave shielding amorphous metal thin film laminated sheet
Desired flexibility, compressive elasticity and cushioning against impact and pressure
Properties, rupture resistance, and the like. That is, the electromagnetic shielding amorphous
When an external force such as bending acts on the metal thin film laminated sheet,
The coating layer made of the flexible material is deformed.
Absorbs the external force of leverage, and elongates and stretches the amorphous metal thin film.
Compression and thereby reduce the thickness of the amorphous metal thin film.
Prevents breakage and breakage of the product and permanently deforms (forms folds)
Exerts a buffering effect of preventing Such electromagnetic
Wave shielding amorphous metal thin film laminated sheet
Magnetic shield sheet such as a magnetic resonance diagnostic apparatus (MRI),
Covering sheet for electronic equipment, sheet for packing and storage
Sheet, floor sheet, wall sheet or architectural sheet
It is something for you. In order to form a flexible polymer resin layer,
A flexible polymer resin can be used. Such flexibility
Natural polymer, neoprene rubber,
Loloprene rubber, silicone rubber, Hypalon and others
Synthetic rubber or PVC resin, ethylene-vinyl acetate
Polymer (EVA) resin, acrylic resin, silicone resin
Fat, polyurethane resin, polyethylene (PE) resin,
Propylene (PP) resin, polyester resin, fluorine
Resin-containing resins and other synthetic resins can be used. this
Such materials also have good waterproofing properties and the resulting electricity
Desirable for magnetic shielding amorphous metal thin film laminated sheet
Can provide waterproof, flame retardant and mechanical strength
You. The flexible polymer resin layer is more preferably 0.05 mm or more.
Preferably, it has a thickness of 0.05 to 1.0 mm
And preferably contains a conductive material. These flexible polymer resin layers are formed as described above.
Rubber or resin film, solution, paste or strain
Using known methods such as topping and cardboard
Rendering, coating, dipping and other methods
Formed on the surface of the amorphous metal thin film stack
can do. Some of these rubbers or resins contain plastic
Agents, stabilizers, coloring agents, UV absorbers and other functions
Agents, such as flame retardants, flame retardants, etc.
No. Conventionally, rust prevention and
Form a resin layer of about 1-10μm thick to prevent corrosion
It is known that the electromagnetic wave shield of the present invention
Flexible amorphous metal thin film laminated sheet
The polymer resin layer is generally formed to a thickness of 50 μm or more,
This thickness is preferably between 50 and 5000 μm,
Is preferably 100 to 3000 μm, more preferably
Preferably it is 200 to 2000 μm. In addition, the present invention
The flexible polymer resin layer used has the above thickness
However, it can exhibit sufficient flexibility in use. These flexible polymer resin layers are porous,
That is, it may be a foamed layer. Such foamed porous
The layer can be a rigid foam as long as it has the desired flexibility.
Good, but generally preferred 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.
And electromagnetic wave shielding amorphous metal thin film laminated sheet
Can be set arbitrarily according to the purpose of
Preferably, it is in the range of 0.5 to 100 mm,
More preferably, it is within the range of 1 to 50 mm. The foamed porous layer is made of an amorphous metal thin film.
Although it is bound to the layer body, the foamed porous sheet is
May be formed and bound using an adhesive, or
Heat-melts the adhesive surface of the foamed porous sheet,
You may wear it. The foamed porous layer is made of amorphous gold.
It may be formed by chemical foaming on a metal thin film laminate, or
Amorphous metal thin film containing polymer paint containing bubbles
So-called mechanical foaming method, which is applied on a laminate and solidified.
May be formed. The flexible polymer foamed porous layer as described above
Includes coating layers on both sides of the amorphous metal thin film stack
Or on one side only, or in the middle
May be performed. Amorph when formed on one side only
On the other side of the metal thin film laminate, or on any part,
Coating comprising a non-porous layer of a flexible polymer resin as described above
The layers may be bound. Electromagnetic shielding amorphous gold of the present invention
Amorphous metal thin film laminated
At least a covering layer of a flexible material laminated to the body
One layer is a reinforcing layer made of a fiber cloth. This reinforcing fiber
The textile layer has the tensile strength of the amorphous metal thin film.
Covering directionality, strength non-uniformity, low tear strength, etc.
It is effective to do. The reinforcing fiber fabric layer is made of natural fibers, 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 triacetate fibers, etc., 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. A fabric forming a reinforcing fiber fabric layer;
Weight so that the warp and the weft arranged in parallel
Needless to say, woven fabrics composed by holding these with a twine thread are particularly preferred.
Good. In addition, the obtained electromagnetic wave shielding amorphous
Requires metal thin film laminate sheet to be particularly flexible
In this case, the reinforcing fiber fabric layer is formed of a relatively coarse knitted fabric.
It is desirable to have high strength.
If it is used, it should be formed with a relatively dense knitted fabric.
Is preferred. Further, the reinforcing fiber fabric layer may be conductive or semi-conductive.
Preferably, it is conductive. In this case, the fibers forming the reinforcing fiber fabric layer
The fibers themselves may be conductive or semiconductive, and
A mixture of these fibers may be used. Or non-leading
Even when conductive or semi-conductive processing agent is applied to conductive cloth
Well, the fabric is non-woven, conductive or semi-conductive
May be used. In general, the tear strength of an amorphous metal thin film
Is so low that it is almost equal to 0 and breaks easily at low loads
You. In addition, such an amorphous metal thin film has a tensile strength
Is relatively weak and the variation in strength is large
No. For example, tensile of 25μm thick amorphous metal thin film
JIS-L-1096 (1979). "General weaving
Test method "6.12, Tensile strength and elongation 6.1
2.1 (1) Width: 3c according to the A method (strip method)
m, gripping interval: 20 cm, pulling speed: 200 mm / min
When measured under the conditions described above, the tensile strength is 65 to 12
5kg / 3cm, average 100kg / 3cm relatively weak
And the measured values vary greatly.
Fast metal films are generally provided in narrow ribbons
These are arranged in parallel to form a sheet
And, even if they are at their opposite side edges,
Depending on the field, even if bonded with adhesive,
Direction tensile strength is insufficient, and the variation
There is a problem of being large. However, for heavy packaging, heavy coating
Or local friction or local external force
When used for various applications, the electromagnetic shielding
The morphus metal thin film laminated sheet can be made of fiber cloth.
Sufficient because it is reinforced by the flexible reinforcing fiber fabric layer
Practical utility. The tensile strength of the reinforcing fiber fabric layer is as follows:
Preferably, it is higher than the tensile strength of the morphus metal thin film.
New The tensile strength of the reinforcing fiber fabric layer is determined by the
The tensile strength of the morphus metal thin film must be higher than the minimum value.
Is preferred. Such a reinforcing fiber fabric layer is
Reinforces the tensile strength of the thin metal film, and
Sticking can be reduced. Further, the elongation at break as a reinforcing fiber fabric layer is
When the material having a content of 5% or less is used, the laminate and the reinforcing fiber fabric layer are used.
And the difference in extensibility between them is small, and therefore, the SS
The heavy curves are approximated and, therefore,
Metal thin-film laminated sheet shows relatively high tensile strength.
Can be Elongation at break is amorphous metal thin film
Reinforce fiber sheet equal to or less than 5%
When combined with the laminate as a fiber fabric layer for
In forming the layer sheet, the amorphous metal thin film ribbon
It only needs to be arranged in parallel, it can be soldered or glued
The joining of the ribbons is not always necessary. like this
Wide amorphous metal thin films with no joints
Shows good appearance without standing. The fibers constituting such a reinforcing fiber fabric layer
130 kg / mm for fiber^Two Above tensile strength and 5% or less
Those having the following elongation at break are preferred. Such performance
There is no particular limitation on the type of fiber having
Is exemplified. [0048]                               Tensile strength Elongation at breakTextile (Kg / mm ² ) (%) 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 cloths have the above-described effects.
Effective to achieve, but with low elongation, flex
It has low strength. Therefore, the electromagnetic shielding
High flex resistance for applications of Rufus metal thin film laminated sheet
Is required, a high elongation is required for the high-strength fiber cloth.
Other fibers with high flexural strength, or yarns composed of them
Alternatively, it is preferable to mix a cloth. Such high elongation
There is no particular limitation on the type of fiber, but
It is as follows. [0050]                                         Tensile strength Elongation at breakTextile kg / mm ^2% 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. Further, the surface of the reinforcing fiber fabric layer is
Depending on the use of the amorphous metal thin film laminated sheet
Required smoothness or anti-slip properties or desired color
This reinforcing fiber fabric may have a color, a pattern, etc.
On the layer, a treatment for imparting the above properties may be performed,
Alternatively, a coating may be applied. As a reinforcing fiber fabric 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. Also, one surface of the amorphous metal thin film laminate
And 130kg / mm^Two Above tensile strength and cutting less than 5%
Fiber reinforced fabric comprising high-strength fiber having elongation
Laminate the layers and on the other side, 130kg / mm^Two Than
High with low tensile strength and elongation at break higher than 5%
A reinforcing fiber fabric layer containing elongation fibers may be laminated.
No. Further, the reinforcing fiber cloth layer is 130 kg / mm.^Two
High tensile strength and cutting elongation of 5% or less
130kg / mm with strength fiber^Two Lower tensile strength and 5
% With a high elongation fiber having a cutting elongation higher than
May be included. Further, when the reinforcing fiber fabric layer is 130 kg / mm
^Two Having the above tensile strength and cutting elongation of 5% or less
At least one reinforcing fiber fabric layer containing high strength fibers
And 130kg / mm^Two Lower tensile strength and higher than 5%
At least one piece containing high elongation fiber having high elongation at break
And a reinforcing fiber fabric layer. Further, the amorphous metal thin film laminate
A reinforcing fiber fabric layer is laminated on at least one surface.
On at least one surface of the base layer thus formed.
Even if a coating layer made of another flexible material is disposed
Good. The electromagnetic shielding amorphous gold of the present invention
In the metal thin film laminated sheet, the flexible material layer is a carpet.
In the fiber fabric layer constituting the upper surface part, for example, the pile fabric layer
Or a wallpaper-like sheet that constitutes a wallpaper sheet.
Layer. In the former case, the resulting electromagnetic wave sea
Amorphous metal thin film laminated sheet
In the latter case, the resulting electricity
Magnetic wave shielding amorphous metal thin film laminated sheet is electromagnetic
Useful as wave shielding wallpaper. Electromagnetic shielding amorphous gold of the present invention
At least the outermost surface layer of the metal thin film laminated sheet
One is a reinforcing fiber cloth layer or a flexible polymer resin layer
May be formed. [0060] BRIEF DESCRIPTION OF THE DRAWINGS FIG.
The metal thin film laminated sheet will be further described by way of examples. [0061]Example 1 Amorphous alloy (Fe: 81%, B: 13.5%, S
i: 3.5%, C: 2%, trademark: METGLAS N
o. 2605SC, manufactured by Allied, width: 7.62 cm, thickness
1 μm thick on the entire surface of the ribbon
Copper plating was applied. Amorphous metal with this plating layer
13 thin film ribbons are arranged in parallel, and each side edge is soldered.
In total, a wide sheet having a width of about 1 m was prepared. Solder joint
Tensile strength is 40-86kg / 3cm, average 68.6kg / 3
cm, the tensile strength of the solder joint is quite low.
Was. [0062] Five wide amorphous metal thin films are laminated.
And a synthetic rubber adhesive on one side of the thin film facing up and down
(Trademark: SC 12N, manufactured by Sony Chemical)
1cm into a 3mm circular spot^Two Apply at a density of 2 pieces per
Then, they were integrally bonded. Application area ratio of this adhesive
Was 14.13%. The resulting laminate is 80 dB high
The electromagnetic wave shielding effect was shown. One side of the above amorphous metal thin film laminate
The above adhesive is applied to the entire surface, and a glass fiber cloth
(Trademark: KS-2671, manufactured by Kanebo Glass Fiber Co., Ltd., thickness
Length: 0.22 mm, basis weight: 210 g / m^Two , Plain weave, dense
Degree: 19 lines / 25.4 mm, weft density: 19 lines / 25.4 m
m, fiber tensile strength: 350kg / mm^Two , Fiber breaking elongation:
3%, fabric tensile strength, 111.6 kg /
3cm, elongation at break of fabric, 3.0% in both directions)
And the other side in the same way
Filament plain sack cloth: [0064] (Equation 1) Was adhered to prepare a base layer sheet. This plain woven fabric is thick
Weight: 0.3mm, weight: 40kg / 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
The breaking elongation was 13%. The above-mentioned base sheet is made of a flexible and waterproof material having the following composition.
It was immersed in a polymer resin coating solution.       80 parts by weight of polyvinyl chloride resin       Butylbenzyl phthalate 68       Epoxidized soybean oil 7〃       Calcium carbonate 20 kg       Cadmium barium stabilizer 3 安定       Pigment 8       Toluene (solvent) 130〃 The base sheet impregnated with the coating liquid is nip-rolled.
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 polymer resin layer was 0.35 mm.
Was. The obtained electromagnetic wave shielding amorphous gold
Metal thin film laminated sheet has good shielding properties against electromagnetic waves
(80dB), excellent waterproofing, and heat fusion welding
Was possible. Such excellent heat fusion welding
Amorphous metal previously unthinkable due to compatibility
Use thin film as sheet material (for example, sheet for large tent)
Amorphous that could not be sewn conventionally
Enables stitching of laminated sheets using metal thin films,
Simplify use and expand the field of use
It became so. Such an electromagnetic shielding amorphous material
Metal thin film laminated sheet consists of multiple amorphous metal thin films
Enough strength for practical use
And flexible, and extremely high electromagnetic wave of 80dB
Showed the Ludo effect. In addition, sufficient workability and handling
It was easy. [0069] According to the present invention, an electromagnetic shielding amorphous material of the present invention is provided.
The metal thin film laminated sheet is composed of multiple amorphous metal ribbons
Are joined at the side edges of the
It includes a laminate made of Rufus metal thin film.
Sufficient flexibility, flexibility, strength, shock absorption, and
Workability and excellent electromagnetic shielding properties
The electromagnetic wave shielding coating or packaging sheet
Is useful as a rug, rug, or wallpaper sheet.
You. The electromagnetic shielding amorphous metal of the present invention
Thin film laminated sheet is an intermediate product or completed in the above applications
It can be used in combination with any product.

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁶ Identification code Agency reference number FI Technical display location H01F 1/18 H05K 9/00 W H05K 9/00 H01F 1/18

Claims (1)

(57) [Claims] At least one laminate made of a plurality of amorphous metal thin films laminated and integrated, and at least two coating layers laminated on the laminate and made of a flexible material, wherein the amorphous metal thin film is A plurality of amorphous metal thin film ribbons arranged in parallel with each other are bonded to each other by an adhesive or solder at their longitudinal side edges to form an integral thin film having a desired width, and An electromagnetic wave shielding amorphous metal thin film laminated sheet, wherein at least one of the coating layers made of a material is a reinforcing fiber fabric layer, and at least one other layer is a flexible polymer resin layer. 2. The electromagnetic-wave shielding amorphous metal thin film laminated sheet according to claim 1, wherein the plurality of laminated amorphous metal thin films are bonded and integrated with each other by an adhesive or a pressure-sensitive adhesive. 3. The electromagnetic shielding amorphous according to claim 2, wherein the adhesive or the pressure-sensitive adhesive is distributed in one or more lines or one or more dots on the bonding surface of the bonded amorphous metal thin film. Metal thin film laminated sheet. 4. The sum of the distribution areas of the adhesive or the pressure-sensitive adhesive is 1.0 to 90 with respect to the area of the bonding surface of the amorphous metal thin film.
%. The electromagnetic wave shielding amorphous metal thin film laminated sheet according to claim 3, which is in the range of%. 5. 4. The electromagnetic wave shielding amorphous metal thin film laminated sheet according to claim 3, wherein the application areas of the adhesive or the pressure-sensitive adhesive on the plurality of laminated amorphous metal thin films are formed at positions that do not overlap each other. 5. 6. At least one amorphous metal thin film in the amorphous metal thin film laminate includes the amorphous metal thin film and a plating layer formed on at least one surface thereof and made of at least one conductive metal. Item 2. An electromagnetic wave shielding amorphous metal thin film laminated sheet according to Item 1. 7. The amorphous metal thin film laminate has at least one
The electromagnetic-wave shielding amorphous metal thin film laminated sheet according to claim 1, comprising: an amorphous metal thin film having a plurality of plating layers; and an amorphous metal thin film having no at least one plating layer. 8. The conductive metal plating layer comprises at least one selected from copper, nickel, cobalt, iron, aluminum, gold, silver, tin, zinc and an alloy including at least one selected from the above metals, An electromagnetic wave shielding amorphous metal thin film laminated sheet according to claim 6. 9. The electromagnetic-wave shielding amorphous metal thin film laminated sheet according to claim 1, wherein the amorphous metal thin film includes a plurality of amorphous metal thin film ribbons arranged in parallel with each other. 10. The electromagnetic-wave shielding amorphous metal thin film laminated sheet according to claim 1, wherein the bonding agent for the amorphous metal thin film ribbon is a conductive adhesive. 11. The amorphous metal thin film is made of Fe, Co, N
a main component consisting of at least one member selected from i, Pd, Cu, Nb and Ti, and B, Si, C, Co, Ni,
2. The electromagnetic wave shield according to claim 1, comprising at least one member selected from the group consisting of Cr, Zr, Nb, Cu, Ti, and Mo, but including an additional component not containing a metal contained in the main component. Amorphous metal thin film laminated sheet. 12. Each of the amorphous metal thin films is 5-100
The electromagnetic-wave-shielding amorphous metal thin-film laminated sheet according to claim 1, which has a thickness of μm. 13. The amorphous metal thin film laminate has a thickness of 50 to 50,000.
The electromagnetic wave shielding amorphous metal thin film laminated sheet according to claim 1, which has a total thickness of 00 µm. 14． The electromagnetic-wave shielding amorphous metal thin film laminated sheet according to claim 6, wherein the conductive metal plating layer has a thickness of 0.1 µm or more. 15. The electromagnetic-wave shielding amorphous metal thin film laminated sheet according to claim 1, wherein the covering layer made of the flexible material is formed between the plurality of amorphous metal thin film laminates. 16. The electromagnetic-wave shielding amorphous metal thin film laminated sheet according to claim 1, wherein the covering layer made of the flexible material is disposed on at least one outermost surface of the laminate. 17． The electromagnetic-wave shielding amorphous metal thin-film laminated sheet according to claim 1, wherein the covering layer made of the flexible material is conductive or semiconductive. 18. The electromagnetic-wave shielding amorphous metal thin-film laminated sheet according to claim 1, wherein the flexible polymer resin layer has a thickness of 50 µm or more. 19. The reinforcing fiber fabric layer is at least one fiber selected from glass fibers, carbon fibers, metal fibers, polyester fibers, aliphatic polyamide fibers, aromatic polyamide fibers, polyvinyl chloride fibers, polyacryl fibers, and polyolefin fibers. The electromagnetic-wave shielding amorphous metal thin film laminated sheet according to claim 1, comprising: 20. The reinforcing fiber fabric layer has a higher tensile strength than at least one of the amorphous metal thin films,
The laminated sheet of an amorphous metal thin film having an electromagnetic wave shielding property according to claim 1. 21. The electromagnetic wave shielding amorphous metal thin film laminated sheet according to claim 1, wherein the reinforcing fiber fabric layer has a tensile strength higher than a minimum value of a tensile strength of at least one of the amorphous metal thin films in the laminate. . 22. The electromagnetic-wave shielding amorphous metal thin film laminated sheet according to claim 1, wherein the reinforcing fiber fabric layer has a breaking elongation of 5% or less. 23. The electromagnetic wave shielding amorphous metal thin film laminated sheet according to claim 1, wherein the reinforcing fiber fabric layer comprises a fiber having a tensile strength of 130 kg / mm ² or more and a cutting elongation of 5% or less. 24. The amorphous metal thin film laminate is laminated on one side thereof with a reinforcing fiber fabric layer comprising high-strength fibers having a tensile strength of 130 kg / mm ² or more and a cutting elongation of 5% or less, and In other respects, 1
Tensile and strength lower than 30kg / mm ^2, are laminated by reinforcement fiber fabric layer comprising a high elongation fibers having a higher elongation at break than 5%, the electromagnetic wave shielding amorphous metal thin film according to claim 1 Laminated sheet. 25. A high-strength fiber in which the reinforcing fiber fabric layer has a tensile strength of 130 kg / mm ² or more and a cut elongation of 5% or less; a tensile strength of 130 kg / mm ² and a cut elongation of more than 5%. The electromagnetic-wave-shielding amorphous metal thin-film laminated sheet according to claim 1, comprising a mixture with a high elongation fiber. 26. The reinforcing fiber fabric layer comprises at least one fiber layer including high-strength fibers having a tensile strength of 130 kg / mm ² or more and a breaking elongation of 5% or less; and a tensile strength of less than 130 kg / mm ^2. The electromagnetic-wave shielding amorphous metal thin film laminated sheet according to claim 1, comprising at least one fiber layer containing high elongation fiber having a cutting elongation higher than 5%. 27. By the amorphous metal thin film laminate, a reinforcing fiber fabric layer laminated on at least one surface thereof,
The electromagnetic wave shielding amorphous metal thin film laminated sheet according to claim 1, wherein a base layer is formed, and the flexible polymer resin layer is disposed on at least one surface of the base layer. 28. The electromagnetic-wave shielding amorphous metal thin film laminated sheet according to claim 1, wherein at least one of the flexible polymer resin layers is porous. 29. The electromagnetic wave shielding amorphous metal thin film laminated sheet according to claim 1, wherein the reinforcing fiber fabric layer forms at least one outermost surface layer of the laminated sheet.