JPH0679800A - Production of laminated sheet - Google Patents

Abstract

PURPOSE:To sufficiently clean a molding plate and to enhance moldability and lamination appearance by molding a laminate consisting of a prepreg or the like by the molding plate cleaned by a cleaning roll receiving the supply of water from the shaft thereof and discharging water to the perforated surface thereof. CONSTITUTION:A molding plate made of stainless steel is cleaned and drained by a cleaning roll formed by covering the surface part of a metal perforated roll with a porous rubber and receiving the supply of water from the shaft thereof and discharging water from the porous surface by water pressure. Thereafter, a laminate consisting of a prepreg, metal foil and, if necessary, an inner layer material is molded between two molding plates. Since the porous parts of the surface of the roll are not clogged with dust, the molding plate can be sufficiently cleaned and moldability and the appearance of a laminated sheet can be enhanced. As the resin of the inner layer material, a general resin such as an epoxy resin can be used and, if necessary, an inorg. powder filler such as talc can be added.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for manufacturing a laminated board such as an electric laminated board and a multilayer wiring board used in electric equipment, electronic equipment, communication equipment, computing equipment and the like.

[0002]

2. Description of the Related Art Conventionally, a laminated plate is made of a prepreg, a metal foil and, if necessary, an inner layer material by using a non-perforated roll or a molding plate cleaned by a roll sucking a reduced pressure from a roll shaft side through a porous surface. Although it was laminated molding, removal of dust and water was insufficient for the former, and for the latter, the porous part of the surface was gradually clogged with dust and cleaning became insufficient,
There is a defect that the formability and the appearance of the laminated plate are deteriorated.

[0003]

As described in the prior art, the conventional cleaning roll has a drawback that cleaning of the forming plate is insufficient and formability and appearance of the laminated plate are deteriorated. The present invention has been made in view of the above problems in the prior art, and an object of the present invention is to produce a laminated plate capable of sufficiently cleaning the forming plate and improving the formability and the appearance of the laminated plate. To provide a method.

[0004]

SUMMARY OF THE INVENTION The present invention is a molding plate cleaned with a cleaning roll that supplies water from the roll shaft side and drains it from a porous surface, and comprises a prepreg, a metal foil and, if necessary, a laminate comprising an inner layer material. Since the laminated plate is manufactured by laminating, the porous part of the roll surface is not clogged with dust, so the molding plate can be cleaned sufficiently, and the moldability and appearance of the laminated plate can be improved. The present invention will be described in detail below.

Resins for prepreg and inner layer materials used in the present invention include epoxy resin type, phenol resin type, unsaturated polyester resin type, vinyl ester resin type, polyphenylene oxide resin type, silicone resin type, polyphenylene sulfide resin type, polyethylene. Terephthalate resin-based, polybutylene terephthalate resin-based, polyimide resin-based, polybutadiene resin-based, fluororesin-based and the like alone, modified products, it is possible to use a general resin such as a mixture, if necessary, talc, clay, silica, Inorganic powder fillers such as calcium carbonate, aluminum hydroxide,
Glass fiber, asbestos fiber, pulp fiber, synthetic fiber,
Fibrous fillers such as ceramic fibers can be included. As the base material of the prepreg and the inner layer material, glass, inorganic fibers such as asbestos and polyester, polyamide,
Woven cloth, non-woven cloth, mat, paper and the like of organic fibers such as polyacryl, polyvinyl alcohol, polyimide and fluororesin and natural fibers such as cotton can be used. As the metal foil, a single, alloy, or composite metal foil of copper, aluminum, brass, nickel, iron or the like can be used, and a resin layer such as an adhesive agent may be provided on one side of the metal foil if necessary. it can. As the roll material, metal, rubber, resin alone, alloy, or composite product can be used. However, it is necessary that the roll surface is porous and water is supplied from the roll shaft side and drained from the porous surface. Wastewater is 0.5 to 5 kg more than natural wastewater
A water pressure of / cm ² is preferable because it facilitates cleaning and draining.

The present invention will be described below based on examples.

[0007]

[Example] Water was supplied from the shaft side of a cleaning roll in which the surface of a metal porous roll was covered with porous rubber, and 2 kg from the porous surface.
2mm thick with a cleaning roll that drains water with a water pressure of 1 / cm ^2.
After cleaning a 100 mm square stainless steel molded plate and draining it, a thickness of 0.2 m is provided between the two molded plates.
m, 1050 mm square epoxy resin-impregnated glass cloth prepreg, and a laminated body having 0.035 mm thick copper foil placed on the upper and lower sides of the prepreg at a molding pressure of 40 Kg / cm ² and 165 ° C. for 12 hours.
It was heated and pressed for 0 minutes to obtain a double-sided copper-clad laminate having a thickness of 1.6 mm.

[0008]

[Comparative Example] A laminated plate was obtained by the same process as in Example except that the vacuum was suctioned from the shaft side of the cleaning roll via the porous portion of the surface.

Table 1 shows the performance of the laminates of Examples and Comparative Examples.

[0010]

[Table 1]

[0011]

The present invention is constructed as described above.
In the method for producing a laminated plate having the constitution described in the claims, the moldability and the appearance of the laminated plate can be improved, and it was confirmed that the present invention is excellent.

Continuation of front page (51) Int.Cl. ⁵ Identification code Office reference number FI technical display area // B29K 105: 06

Claims (1)

[Claims] 1. A laminate comprising a prepreg, a metal foil and, if necessary, an inner layer material, formed by laminating with a forming plate cleaned with a cleaning roll that supplies water from the roll shaft side and drains from the porous surface. Laminated board manufacturing method.