JP4816954B2 - Method for winding laminate, method for producing copper clad laminate, and method for producing product with protective tape - Google Patents

Description

  The present invention relates to a method for winding a laminated body in which a roll-shaped laminated body is formed by winding a plurality of laminated plate materials in a roll shape.

Conventionally, the manufacturing process of a laminated board using a double belt press machine includes: (1) preparing a roll-like long laminated board material; and (2) a plurality of sheets provided in front of the insertion opening of the double belt press machine. Laminated plate materials are individually set on the shaft. (3) Laminated plate materials are individually unwound from the shaft in accordance with the line speed of the double belt press machine. (4) The individually unrolled laminated plate materials are vertically symmetrical. It was performed by inserting continuously between the continuous belts of the double belt press machine arrange | positioned in (refer patent document 1).
JP-A-5-42555

  However, the conventional manufacturing process requires at least the number of device parts such as shafts equal to the number of laminated plate materials. Moreover, the operation | work which inserts the front-end | tip part of material by the number of laminated board materials in a double belt press machine is needed. Therefore, according to the conventional manufacturing process, a wide space area is required for installing an apparatus part for supplying the laminate material. As a result, since the space area is insufficient, it becomes difficult to insert the leading end portion of the laminated plate material into the double belt press.

  The present invention has been made to solve the above-mentioned problems, and its purpose is to solve the shortage of installation area due to the space restriction of the apparatus part for supplying the laminated plate material and the difficulty of the material supply work, and to improve the production efficiency. It is providing the winding method of the laminated body which raises.

In order to solve the above-described problems, a method for winding a laminate according to the present invention is a method of winding n laminate materials in a roll shape while laminating them in the order of 1, 2, 3,..., K,. A step of forming a roll-shaped laminate by taking the roll-shaped laminate material, and the k (<n) -th laminate plate material When exposed on the outermost surface, k + 1,..., N are wound after being rolled up while laminating n laminate materials in the order of k + 1,..., N, 1, 2, 3,. A roll-shaped laminate is formed by winding a relatively large number of laminate materials one round.

  According to the method for winding a laminate according to the present invention, it is possible to expose the laminate plate material whose winding state is to be monitored during winding to the outermost surface of the laminate regardless of the winding order of the laminate materials. Therefore, it is possible to easily monitor the positional accuracy and lateral deviation of the winding, and to perform surface treatment.

  The laminate winding method according to the present invention includes, for example, simultaneously producing a plurality of double-sided copper foil laminates sandwiching a polyimide film with an adhesive such as thermocompression bonding or epoxy resin with a copper foil using a double belt press. It can be applied to the process. Hereinafter, a laminated plate manufacturing system according to an embodiment of the present invention will be described with reference to the drawings. The copper foil may be a metal foil other than a copper foil such as an aluminum foil or a stainless steel foil, and the polyimide film may be a film-like substrate other than a polyimide film such as a liquid crystal polymer or an aramid film. .

  As shown in FIG. 1, the laminated plate manufacturing system according to the embodiment of the present invention includes a laminated winding device 1, an unwinding device 2, and a double belt press device 3. As shown in FIG. 2, the laminated winding device 1 has a shaft on which a copper foil 4a, a polyimide film 4b, and a copper foil 4c as a laminated plate material prepared in the form of a roll-shaped long object are set, A shaft that forms a roll-shaped laminate (hereinafter referred to as a roll-state multilayer work) by winding a material from each shaft is provided as a main component. As shown in FIG. 3, the unwinding device 2 includes a plurality of shafts 6 on which the roll-shaped multilayer workpiece 5 is set, and the roll-shaped multilayer workpiece 5 unwound from each shaft is inserted into the workpiece of the double belt press device 3. Supply to mouth. The double belt press device 3 is constituted by a known double belt press device 3, and a plurality of double-sided surfaces are formed by laminating (thermocompression treatment) the roll-shaped multilayer workpiece 5 supplied from each shaft of the unwinding device 2. A copper foil laminate is produced simultaneously. In addition, it is desirable to perform the said thermocompression-bonding process within the range of pressure 20-80 [bar], temperature 180-250 [degreeC], and time 1-10 [min].

  In the manufacturing system of the laminated board having such a configuration, the double-sided copper foil laminated board is obtained by winding the copper foil 4a, the copper foil 4a, the polyimide film 4b, and the copper foil 4c in a roll shape while laminating them. 4b is used to form a roll-shaped multilayer work 5 sandwiching the polyimide film 4b, (2) the roll-shaped multilayer work 5 is set on each shaft 5 of the unwinding device 2, and (3) the line speed of the double belt press device 3 is set. At the same time, the rolled multilayer workpiece 5 is pulled out from the shaft 5, (4) the rolled multilayer workpiece 5 is continuously inserted between the continuous belts of the double belt press device 3, and (5) the rolled multilayer workpiece 5 is Manufactured by laminating.

  When manufacturing a flexible laminated sheet with metal foil using a double belt press machine, the laminated sheet material that makes up the laminated sheet with metal foil is thin. A method of simultaneously producing a plurality of laminated sheets with metal foil by supplying is effective in increasing production efficiency. However, according to the conventional manufacturing process, when a plurality of laminated sheets with metal foil are produced at the same time, at least the number of apparatus parts such as shafts is required for the number of laminated sheet materials. Moreover, the operation | work which inserts the front-end | tip part of laminated board material in a double belt press machine is required for the number of laminated board materials. Therefore, when a plurality of laminated sheets with metal foil are produced simultaneously by a conventional manufacturing process, a wide space area for installing an apparatus part for supplying laminated sheet material is required. As a result, since the space area is insufficient, it becomes difficult to insert the leading end portion of the laminated plate material into the double belt press.

  On the other hand, according to the manufacturing method according to the embodiment of the present invention, as described above, the number of device parts for supplying the material to the double belt press device 3 can be greatly reduced, so that the material is supplied. It is possible to eliminate the shortage of the installation area due to the space restriction of the device part and the difficulty of the material supply work, and to increase the production efficiency. Further, the relative lateral alignment of the layers forming the laminate can be performed by external setup.

  By the way, in the said manufacturing system, as shown in FIG. 2, although the laminated sheet material was laminated | stacked in order of the copper foil 4a, the polyimide film 4b, and the copper foil 4c, the roll-shaped multilayer workpiece | work 5 was formed. According to the above, when it is necessary to expose the inner laminated plate material such as the copper foil 4a and the polyimide film 4b for reasons such as appearance inspection and surface treatment during the winding operation, the laminated plate material to be exposed and its It is necessary to form a space between the laminated plate materials by separating the drawing position of the outer laminated plate material.

  In particular, if the polyimide film is in a state of protruding from the copper foil when forming using a double belt press machine, the adhesive layer will cause trouble by adhering to the double belt press machine, so the width of the polyimide film is It is necessary to make it narrower than the width of the copper foil, and the polyimide film needs to be accurately overlapped with the center of the copper foil. However, as described above, since the roll-shaped multilayer workpiece 5 is formed by laminating the laminated plate materials in the order of the copper foil 4a, the polyimide film 4b, and the copper foil 4c, the polyimide film is under the opaque copper foil. It is hidden and cannot be monitored.

  Therefore, when the polyimide film 4b is exposed, as shown in FIG. 4, (1) the laminated sheet material is laminated in the order of the copper foil 4c, the copper foil 4a, and the polyimide film 4b, and (2) the polyimide film 4b. The laminated sheet material is cut in the order of copper foil 4a, and (3) the roll-shaped multilayer workpiece 5 is formed by winding the copper foil 4c one more turn than the polyimide film 4b and the copper foil 4a. More generally, when the k (<n) th laminate material of n laminate materials is exposed on the outermost surface of the roll-shaped multilayer workpiece, k + 1,..., N, 1, 2, 3,. , K are wound in the form of a roll while laminating n pieces of laminated board materials, and then a roll-shaped multilayer workpiece is formed by winding up k + 1,. .

  According to such a winding method, since the polyimide film 4b is always exposed during the winding operation, the position of the polyimide film 4b with respect to the copper foil can be easily monitored, and the polyimide film 4b The deviation between the center and the center of the copper foil can be easily measured. Further, moisture that adversely affects static electricity and adhesive strength of the polyimide film 4b can be easily removed. Finally, since the copper foil 4c is wound one more turn than the polyimide film 4b and the copper foil 4a, the roll-shaped multilayer work 5 laminated in the order of the copper foil 4a, the polyimide film 4b, and the copper foil 4c is produced without waste. can do.

  In this embodiment, the polyimide film 4b is monitored by exposing the polyimide film 4b during the winding operation for the roll-shaped multilayer workpiece 5 laminated in the order of the copper foil 4a, the polyimide film 4b, and the copper foil 4c. Although the method to do was demonstrated, the external appearance inspection of articles | goods can also be performed by exposing articles | goods at the time of winding-up operation | work about products, such as a precision mold component protected with a protective tape, and a magnetic film, by the same idea. .

  As mentioned above, although the embodiment to which the invention made by the present inventors was applied has been described, the present invention is not limited by the description and the drawings that form part of the disclosure of the present invention according to this embodiment. For example, by supplying a roll-shaped multilayer workpiece 5 having a polyimide film 4b sandwiched between copper foils 4a and 4b and a pair of copper foils to the double belt press device 3, a double copper foil is formed on both sides of the polyimide film 4b. May be. Further, in the present embodiment, six laminated sheets with double-sided copper foil are laminated at the same time, but a roll-shaped multilayer work is formed by one polyimide film and one copper foil. You may make it obtain a laminated board with a single-sided copper foil by unwinding and laminate-molding. Furthermore, you may make it obtain a laminated board with a double-sided copper foil by preparing the roll of copper foil, winding up a roll-shaped multilayer workpiece | work and a roll of copper foil, and laminating-molding. Even in such a case, the number of apparatus parts such as a shaft for supplying the laminated plate material becomes half, and the apparatus configuration can be simplified. As described above, it is a matter of course that all other embodiments, examples, operation techniques, and the like made by those skilled in the art based on the above embodiments are included in the scope of the present invention.

It is a block diagram which shows the structure of the manufacturing system of the laminated board used as embodiment of this invention. It is a schematic diagram which shows the structure of the lamination | stacking winding apparatus shown in FIG. It is a schematic diagram which shows the structure of the unwinding apparatus and double belt press apparatus which are shown in FIG. It is a schematic diagram which shows the winding method of the laminated board material used as embodiment of this invention.

Explanation of symbols

1: Laminated winding device 2: Unwinding device 3: Double belt press device 4a, 4c: Copper foil 4b: Polyimide film 5: Rolled multilayer work 6: Shaft

Claims (3)

a step of forming a roll-shaped laminate by winding the n-layer laminate materials in the order of 1, 2, 3,..., k ,. When the k (<n) -th laminated sheet material is exposed on the outermost surface of the roll-shaped laminated body during the winding operation of winding the film into a roll shape, k + 1,..., N, 1, 2, 3, .., K are wound in a roll shape while laminating n laminated plate materials in the order of k, and then a roll-shaped laminated body is obtained by winding k + 1,. A method for winding a laminate, comprising forming the laminate.   The 1st copper foil, the resin film, and the 1st copper foil, the resin film, and the 1st copper foil laminated | stacked in order of the 2nd copper foil in order from the roll-shaped laminated body formed by the winding method of the laminated body of Claim 1 2 Unwinding the tip of the copper foil, and feeding the unwound tip to a double belt press machine, so that the copper-clad laminate with the resin film sandwiched between the first copper foil and the second copper foil is continuously A method for producing a copper-clad laminate, characterized by comprising:   The first protective tape, the product, and the second protection from the roll-shaped laminate laminated in the order of the first protective tape, the product, and the second protective tape formed by the winding method of the laminated body according to claim 1. By continuously unwinding the leading end of the tape and supplying the unwound leading end to a double belt press machine, continuously producing a product with a protective tape that protects the product with the first protective tape and the second protective tape. The manufacturing method of the product with a protective tape characterized by this.

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