JPH06340001A - Laminated-plate producing device - Google Patents

Abstract

PURPOSE:To provide a metallic-foil-laminated plate producing device which prevents metallic foil on the surface of a laminated plate from being soiled and damaged. CONSTITUTION:A laminated-plate producing device makes a laminate 1 by bonding a resin-impregnated base material, which is obtained by impregnating long band-like base material with resin, and long band-like metallic foil by means of a laminating roll 5 so as to integrate them, carries the laminate body 1 to a hardening chamber 4, and heats and hardens the resin, composing the laminate body 1, by heating the carried laminate body 1 while further carrying it into the hardening chamber 4. A carrying roll 2 which carries the laminate body into the hardening chamber 4 from the laminating roll 5 is smaller than the laminate body 1 in width.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for producing a laminate, for example, an apparatus for continuously producing a metal foil-clad laminate for use in a printed wiring board or the like.

[0002]

2. Description of the Related Art In the conventional continuous production of metal foil-clad laminates, substrates such as glass cloth, non-woven glass cloth and paper are used. This base material is impregnated with resin, the resin-impregnated base material obtained is squeezed with a squeeze roll to squeeze the resin, and a required number of sheets are stacked. A long strip-shaped laminate is obtained by stacking films or long metal foils and passing them between lamination rolls arranged above and below to obtain a long strip-shaped laminate, which is heated in a curing furnace while continuously moving. After curing, a method is known in which a metal foil-clad laminate is continuously manufactured by cutting it to a required size.

According to the continuous manufacturing apparatus of one conventional example shown in FIG. 2, when the width dimension of the transport roll (2) is longer than the width dimension of the long strip-shaped laminate (1), it is continuous. The fluidized resin of the long strip-shaped laminate (1) moving to the surface contaminates the transport roll (2) arranged in the curing chamber (4), and as a result, it moves one after another and is completed. There was a problem of contaminating and damaging the metal foil on the surface of the laminated plate.

[0004]

SUMMARY OF THE INVENTION Therefore, the present invention provides an apparatus for continuously producing laminated sheets, which is capable of preventing the metal foil on the surface of the laminated sheets from being contaminated and damaged, and providing the apparatus. It is in.

[0005]

[Means for Solving the Problems] The apparatus for producing a laminated plate according to the present invention comprises a resin-impregnated base material obtained by impregnating a long strip-shaped base material with a resin and a long strip-shaped metal foil, which are laminated by a laminating roll (5). The laminated body (1) is integrated, and the laminated body (1) is conveyed to the curing chamber (4), and the conveyed laminated body (1) is heated while being conveyed in the curing chamber (4). A device for manufacturing a laminate for heating and curing a resin constituting (1), wherein a transport roll (2) transporting from a laminating roll (5) into a curing chamber (4) is wider than a width of the laminate (1). It is characterized by being shortened.

[0006]

According to the laminated plate manufacturing apparatus of the present invention, since the resin impregnated in the long strip base material is fluid before curing,
It flows out from both ends of the substrate. If the width dimension of the transport roll (2) is set shorter than the width dimension of the base material, even if there is resin that has flowed out, it will not adhere to the transport roll (2) anymore, so that contamination of the transport roll (2) can be prevented. . Therefore, the metal foil on the surface of the laminate can be prevented from being contaminated and damaged.

The present invention will be described in detail below with reference to the drawings. FIG. 1 is a schematic diagram of an embodiment of the present invention.

A base material is impregnated with a resin, a long metal foil is laminated on one surface of the obtained resin-impregnated base material, and a long release film is laminated on the other surface of the resin-impregnated base material. In the step of curing the strip-shaped laminated body (1) in the curing chamber (4) while continuously conveying the strip-shaped laminated body (1), the long strip-shaped laminated body (1) is transferred from the laminating roll (5) into the curing chamber (4). The transport roll is a transport roll (2) that rotates. The width dimension of the transport roll (2) needs to be shorter than the width of the long strip-shaped laminate (1). If it is longer than the laminate (1), the impregnating resin that has flowed out contaminates the transport roll (2). In the case of the transport roll (2) that is shorter than 50 mm,
There is a problem that the edge of the laminate (1) droops significantly due to its own weight, and the finished product dimension is shortened. By limiting the width dimension of the transport roll (2) and the long strip-shaped laminate (1) to the above-mentioned width dimension relationship, the uncured impregnated resin flowing out from the long strip-shaped laminate (1) is removed. , It will not adhere to the transport roll (2). Therefore, the problem that the transport roll (2) is contaminated and, as a result, the metal foil on the surface of the laminate is contaminated or damaged is solved.

The transport roll (2) and the laminating roll (5) may be made of metal such as stainless steel, rubber, synthetic resin, or metal roll surface coated with rubber or synthetic resin.

A series of endless belts (3) that swivel on the transport rolls (2) may be provided. The endless belt (3) is made of metal such as stainless steel, rubber, synthetic resin, or metal roll surface coated with rubber or synthetic resin, similar to the conveying roll (2) and laminating roll (5). It can be used as appropriate. Also,
The endless belt (3) is shorter than the width of the laminate (1). This is because the uncured impregnating resin flowing out from the long belt-shaped laminate (1) is limited to the endless belt (3) by limiting the width dimension relationship between the endless belt (3) and the laminate (1). This is because the adhesion is eliminated, the endless belt (3) is contaminated, and as a result, the problem of contaminating or damaging the metal foil on the surface of the laminated plate is solved.

As the curing conditions for the laminate (1) in the curing chamber (4), the curing temperature and the curing time can be selected depending on the type of the impregnating resin, but the curing is pressureless to 20 kg / cm ²
Can be carried out under heating. After cutting, it is preferable to perform post-baking at a temperature not lower than the heat distortion temperature of the resin used and then cool to a temperature not higher than the heat distortion temperature in order to reduce warpage and twist. It is particularly preferable that the cooling is performed by quenching.

The resin-impregnated base material is a long strip-shaped base material impregnated with a resin, and can be cured later to form an insulating layer. As the long strip-shaped substrate, inorganic fibers such as glass and polyester, polyacrylic, polyvinyl alcohol, polyamide, polyimide,
Woven cloth, non-woven cloth, matte or paper made of organic synthetic fibers such as polyphenylene sulphite and urethane and natural fibers such as cotton, or a combination of these may be used.

The resin composition with which the base material is impregnated includes unsaturated polyester resin, epoxy resin, polyimide resin, fluororesin, phenolic resin, polyphenylene oxide resin, etc., alone, modified, or mixed in a resin amount of 40.
It can be used by being impregnated so as to be ˜60 wt% (hereinafter simply referred to as “%”). Further, the resin composition may contain aluminum hydroxide, clay, talc, silica, if necessary.
1 to 200 parts by weight of a filler such as alumina, magnesium carbonate, calcium carbonate, synthetic resin powder or hollow bodies may be added to 100 parts by weight of the resin. further,
The resin composition may be used as it is, but it is preferable to use it after defoaming under reduced pressure in order to suppress the generation of bubbles in the resin-impregnated base material. The nonwoven fabric substrate is preferably impregnated with the resin composition containing the filler.

[0014]

EXAMPLES Examples of the present invention will be given below.

Example 1 As a resin composition, 100 parts by weight of a commercially available vinyl ester resin (R-806DA manufactured by Showa High Polymer Co., Ltd.) and 1 part by weight of coumer hydroperoxide were added so that the viscosity at 25 ° C. became 5 poises. A glass cloth substrate (WE-18K-BS manufactured by Nitto Boseki Co., Ltd.) that forms a resin composition in which styrene is added to the front and back layers.
The resin was squeezed by a resin squeezing roll so that the amount of the resin was 30% before the two sheets were continuously impregnated and put into a squeeze roll (not shown). Three glass nonwoven fabric base materials (EP-4035 manufactured by Nippon Vilene Co., Ltd.) having the same shape forming the core layer contained 45 parts by weight of aluminum hydroxide and 30 parts by weight of clay based on 100 parts by weight of the resin of the resin composition. The resin composition was continuously impregnated so that the resin amount was 55%. When impregnated, the glass cloth substrates were placed on both sides of the three glass nonwoven fabric substrates. The squeeze roll was used to squeeze the resin composition with which the resin-impregnated base material was excessively impregnated.
The resin-impregnated base material integrated with a squeeze roll is then placed on a pair of laminating rolls (5) such that the adhesive side of the copper foil with an adhesive having a thickness of 18 μm is arranged on both sides on the outside. During continuous feeding, and laminated at low pressure to obtain a long strip-shaped laminate (1). This product is placed on an endless belt (3) and fed into a curing chamber (4) in which a conveyor roll (2) made of stainless steel is arranged.
Heat-cure at 0 ° C for 20 minutes at 5kg / cm ² , then 1
After curing at 60 ° C. for 20 minutes, a copper-clad laminate having a thickness of 1.6 mm was obtained. The obtained copper-clad laminate had neither contamination nor damage.

[0016]

According to the method of manufacturing a laminated plate of the present invention, the metal foil on the surface of the laminated plate can be prevented from being contaminated and damaged.

[Brief description of drawings]

FIG. 1 is a schematic view showing an embodiment of the present invention.

FIG. 2 is a schematic view showing a conventional example.

[Explanation of symbols]

 1 Laminated body 2 Conveying roll 3 Endless belt 4 Curing chamber 5 Laminating roll

Claims (2)

[Claims] 1. A laminating roll (5) comprising a resin-impregnated base material obtained by impregnating a long strip-shaped base material with a resin and a long strip-shaped metal foil.
Are integrated into a laminated body (1), and this laminated body (1)
A manufacturing apparatus for a laminated plate, which conveys the laminated body (1) to the curing chamber (4) and heats the conveyed laminated body (1) in the curing chamber (4) to heat and cure the resin constituting the laminated body (1). And
An apparatus for producing a laminated plate, characterized in that a conveyance roll (2) for conveying the inside of the curing chamber (4) from the lamination roll (5) is shorter than the width of the laminate (1). 2. A transport roll (2) for transporting the laminate (1) from a laminating roll (5) into a curing chamber (4).
The apparatus for manufacturing a laminated plate according to claim 1, wherein a series of endless belts (3) that swirl through is made shorter than the width of the laminated body (1).