JPH0754196A - Apparatus and method for manufacturing metal film laminated polymer film composite film - Google Patents

Abstract

(57) [Summary] [Purpose] Withstanding the tension in the post-process, the metal film is thin,
Provided are a method and an apparatus capable of producing a composite film of a metal film and a polymer film, which is smooth and low in cost. [Structure] The first guide roll, the rotating drum roll and the second guide roll are arranged such that the polymer film is in contact with them in the above-mentioned order and at a constant interval in the width direction with the conductive thin film surface. The low-electric-resistivity ribbon and the insulating coating surface are in contact with the first and second guide rolls, and the polymer surface is in contact with the rotating drum roll. , The lower part of the rotating drum roll is installed so as to be immersed in the plating solution in the plating solution tank, and the low electrical resistivity ribbon and the anode plate are connected to a DC power source. A composite membrane is manufactured.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for continuously producing a composite film of a metal and a polymer film used in various electronic equipments and industrial equipments by an electrolytic plating method and a production method thereof.

[0002]

2. Description of the Related Art A composite film of metal and polymer is manufactured by adhering a metal film and a polymer film manufactured by some method (methods such as electrolytic plating and rolling) (Japanese Patent Laid-Open No. 53-89836). Issue). In addition, a very thin metal-polymer composite film is manufactured by a dry plating method such as a sputtering method, a vacuum deposition method and an ion plating method,
Generally, the thickness of the metal film is 0.01 to 0.5 μm.

[0003]

As a method for producing a composite film of a metal film and a polymer film, a composite film is obtained by adhering a metal film and a polymer film obtained by a rolling method or electrolytic plating method. There is a way to get it, but that requires special equipment. In that case, a metal drum roll is used in the method of using the electroplating method as a method of obtaining the metal film, but in this method, the metal film is peeled off immediately after deposition, so that the metal film itself is formed in a post-process of treating the metal film. Tension is applied to. Therefore, if a thin metal film is to be obtained, the applied tension must be reduced, but if the tension is reduced, peeling cannot be performed. For that reason, the limit of the thickness of the metal film in this method is about 20 μm, and it cannot be made thinner. Also, even if a stable metal drum roll is used for the electrolyte, salt in the electrolyte,
The surface of the drum roll becomes rough every time plating is repeated due to surface stains such as residuals of the metal film after peeling and slight corrosion of the drum roll surface. As a result, the surface roughness of the metal film as a product becomes poor, or the metal film cannot be peeled off. Therefore, generally, a polishing device for polishing the drum on the circumference of the drum roll is required (Japanese Patent Laid-Open No. 53-89836).

Other methods for obtaining a composite film of a metal film and a polymer film include sputtering method, vapor deposition method,
There are dry plating methods such as ion plating method,
These methods have low productivity, require special equipment, and increase the cost. That is, conventionally, a method and an apparatus capable of withstanding a tension applied in a subsequent step, capable of manufacturing a composite film of a metal film and a polymer film, which has a thin metal film, is smooth and has low cost. It did not exist, and the present invention therefore seeks to provide a method and apparatus capable of producing such composite membranes.

[0005]

According to the present invention, in order to solve the above problems, a metal film is continuously formed on the conductive thin film of a polymer film coated with a conductive thin film by electrolytic plating. An apparatus for producing a composite membrane by coating the first guide roll, the rotating drum roll, and the second guide roll, wherein the polymer film is in contact with them in the order described above, and The conductive thin film surface of the polymer film and the insulating coating surface of the low electrical resistivity ribbon arranged at regular intervals in the width direction of the polymer film are the first
Is placed in contact with the guide roll and the second guide roll so that the polymer surface of the polymer film is in contact with the rotating drum roll, and the plating solution tank in which the anode plate is installed is located below the rotating drum roll. Is installed so as to be immersed in the plating solution in the plating solution tank, and the low electrical resistivity ribbon and the anode plate are connected to a direct current power source. Will be provided.

According to the present invention, using the apparatus of the present invention, the conductive thin film surface of the polymer film and the non-insulated surface of the single-sided insulation-coated low electrical resistivity ribbon are the first guides. The polymer film is supplied at a constant speed and a constant tension so as to be stuck on a roll, and then moved so that the polymer surface of the polymer film comes into contact with the rotary drum roll, and then the rotary drum. In the lower part of the roll, direct current electricity is applied to the anode plate and the single-sided insulation-coated low electric resistance ribbon to electroplate, and then the conductive thin film surface of the polymer film and the single-sided insulation-coated low electric resistance ribbon are connected to the first thin film. A method for producing a metal film laminated polymer film composite film, characterized in that the polymer film and the one-sided insulation-coated low electric resistance ribbon are discharged so as to come into contact with the second guide roll. There is provided.

The discharged composite film of the metal film and the polymer film is supplied to a subsequent step such as a washing step, if necessary.
If the metal film is used alone, the polymer film can be peeled off by a chemical or physical means. The material of the polymer film coated with the conductive thin film used in the present invention can be variously selected according to its application. For example, as versatile polymers, polyolefins such as polyethylene, polypropylene, poly-4-methylpentene-1; polyvinyl chloride, polyvinyl alcohol, polyvinyl alcohol such as polyacrylonitrile; polyethers such as polyoxymethylene and polyethylene oxide; Any other polymer material such as polyester, polyamide, and cellulose can be used. In particular, when the metal laminated polymer film composite film produced by the present invention is used at high temperature, an aromatic polyester such as polyethylene terephthalate, an aromatic amide such as poly-p-phenylene terephthalamide, and other polyimides. , Polysulfone, polyoxadiazole,
Polyether ketone, polyparabanic acid, polyphenylene sulfide, etc. are used. Further, as the low induction polymer, a fluorine-based polymer such as polyvinyl fluoride, polytetrafluoroethylene or polyvinylidene fluoride can be used. Further, a filler such as glass fiber, carbon fiber, inorganic mineral, or ceramic may be contained in such an organic polymer.

The material of the conductive thin film of the polymer film coated with the conductive thin film used in the present invention is preferably stable to the plating solution. Examples of such a material include Au, Ag, Pt, Cu, and Ni. The coating can be performed by a dry plating method such as a sputtering method, a vapor deposition method and an ion plating method, or a wet plating method such as an electroless plating method, but is not limited thereto. However, the surface resistance of the obtained film is preferably 6Ω / □ or less. The thickness of the conductive thin film coated on the polymer film varies depending on the material of the conductive thin film,
Specifically, it is 0.5 μm or less, preferably 0.1 μm or less, and 0.01 μm or more.

As a specific example of the single-sided insulation-coated low electric resistivity ribbon used in the present invention, a metal foil coated on one side with an insulating resin can be used. The metal is preferably soft aluminum or copper foil. The distance between the single-sided insulation-coated low electrical resistivity ribbons in the width direction of the polymer film is determined by the surface resistance of the conductive thin film of the polymer film, the plating current, and the fusing temperature of the film. Specifically, if the surface resistance of the conductive thin film of the polymer film is 6Ω / □, the distance is about 100 mm.

As the plating solution used in the present invention, various commercially available plating solutions can be used. Also,
In order to make the metal film part a magnetic material film of an amorphous alloy of Co, Fe and P, the plating solution is the solution disclosed in Japanese Patent Application Laid-Open No. 2-301593. An alloy thin film can be obtained. First used in the present invention
The material of the second guide roll is not particularly limited. The rotation may be free rotation or may be driven.

The rotating drum roll used in the present invention is
It is driven at a constant rotation. As the material, a metal or resin that is stable in the plating solution can be used. An example of a manufacturing apparatus and a manufacturing method of a metal film laminated polymer film composite film according to the present invention is shown in FIGS. 1 and 2. 1 is a side sectional view of the device, and FIG. 2 is a front sectional view of the device.

The conductive thin film surface (12) of the polymer film (1) coated with the conductive thin film and the single-sided insulation-coated low electrical resistivity ribbon (3) on the non-insulated surface are treated with a first guide roll ( 4) The polymer film surface of the polymer film (1) is brought into contact with the rotating drum roll (5) which is brought into contact with the above and then rotated at a constant rotation speed. By rotating the rotating drum roll (5), it is immersed in a plating solution (8) having a target metal composition for a certain period of time, and electricity is applied to the anode plate (9) and the ribbon (3) from a DC power source (10). , A target metal is laminated on the conductive thin film surface. The metal film laminated polymer film composite film (11) from the plating solution (8) and the single-sided insulation-coated low electrical resistivity ribbon (3) are brought into contact with the second guide roll (4 ') and discharged from the apparatus. . Then
The discharged single-sided insulating coating low electric resistivity ribbon (3) is wound up by a winding device (6). The discharged composite film (11) of the metal film and the polymer film is supplied to a subsequent step such as a washing step, if necessary. Further, the metal laminated film portion of the composite film (8) can be made to have an arbitrary thickness by controlling the processing speed and the electrolytic plating current. If the metal film is used alone, the polymer film may be chemically or physically peeled off.

[0013]

EXAMPLES The present invention will be further described below with reference to examples. Example 1 A PET film having a thickness of 12 μm, which was coated with Ag at 350 Å by an evaporation method, was supplied to the apparatus shown in the figure and processed.

The outer diameter of the rotating drum roll (5) is 240 mm.
The outer diameter of the guide roll (4) is 15 mm, and the distance between the single-sided insulation-coated low electrical resistivity ribbons (3) is 100 mm.
The material of the anode plate (9) installed in the plating tank was Co. Electroplating was carried out using a plating solution having the following composition, a treatment time of 6 minutes, a plating temperature of 50 ° C., and a current amount of 0.05 A / cm ² ,
A composite film of a smooth amorphous alloy thin film and a PET film was obtained. The thickness of this amorphous alloy thin film was 3 μm.

Plating liquid composition Ferrous chloride 11.9 g / l Cobalt sulfate 264.3 g / l Sodium phosphite 164.0 g / l Boric acid 6.2 g / l Hydroquinone 0.2 g / l An aqueous solution of the above composition was converted into hydrochloric acid. The pH was adjusted to 1.3.

[0016]

By using the apparatus of the present invention, a thin and smooth composite film of a metal film and a polymer film can be continuously produced.

[Brief description of drawings]

FIG. 1 is a side sectional view showing an example of an apparatus of the present invention.

FIG. 2 is a front sectional view of the device shown in FIG.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Conductive thin film 2 ... Polymer film coated with conductive thin film 3 ... Metal film 4 ... First guide roll 4 '... Second guide roll 5 ... Rotating drum roll 6 ... Single-sided insulation coating Low electrical conductivity Ribbon 7 ... Single-sided insulation coating bobbin unwinder wound with low electrical conductivity ribbon 8 ... Single-sided insulation coating low electrical conductivity ribbon wound bobbin winding machine 9 ... Plating liquid 10 ... Plating liquid tank 10 ... DC power supply 11 ... Anode plate 11 ... Metal film laminated polymer film composite film 13 ... Insulation coating

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Yoshihiro Sako 20-1 Miyuki-cho, Otake-shi, Hiroshima Mitsubishi Rayon Co., Ltd. Central Research Laboratory

Claims (2)

[Claims] 1. An apparatus for producing a composite film by continuously coating a metal film on the conductive thin film of a polymer film coated with a conductive thin film by an electrolytic plating method, comprising: 1 guide roll, rotating drum roll and 2nd
Guide roll of the low-resistivity ribbon in which the polymer film is in contact with them in the above-described order, and the conductive thin film surface of the polymer film and the width direction of the polymer film are arranged at regular intervals. The insulating coating surface of the polymer film is in contact with the first guide roll and the second guide roll, and the polymer surface of the polymer film is in contact with the rotating drum roll. The liquid tank is installed such that the lower part of the rotating drum roll is immersed in the plating liquid of the plating liquid tank, and the low electrical resistivity ribbon and the anode plate are connected to a DC power supply. An apparatus for producing a metal film laminated polymer film. 2. The apparatus according to claim 1, wherein the conductive thin film surface of the polymer film and the non-insulated surface of the single-sided insulation-coated low electrical resistivity ribbon are pasted on the first guide roll. In such a manner, the polymer film is supplied at a constant speed and a constant tension so that the polymer surface of the polymer film is moved so as to come into contact with the rotating drum roll, and then, in the lower part of the rotating drum roll. Direct current is applied to the anode plate and the one-sided insulation-coated low electric resistance ribbon to electroplate, and then the conductive thin film surface of the polymer film and the one-sided insulation-coated low electric resistance ribbon are attached to the second guide roll. A method for producing a metal film-laminated polymer film composite film, comprising discharging the polymer film and the single-sided insulation-coated low electric resistance ribbon so as to come into contact with the metal film.