JPH07102578B2 - Prepreg manufacturing method - Google Patents
Prepreg manufacturing methodInfo
- Publication number
- JPH07102578B2 JPH07102578B2 JP880191A JP880191A JPH07102578B2 JP H07102578 B2 JPH07102578 B2 JP H07102578B2 JP 880191 A JP880191 A JP 880191A JP 880191 A JP880191 A JP 880191A JP H07102578 B2 JPH07102578 B2 JP H07102578B2
- Authority
- JP
- Japan
- Prior art keywords
- base material
- resin
- amount
- prepreg
- squeeze
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/02—Apparatus or processes for manufacturing printed circuits in which the conductive material is applied to the surface of the insulating support and is thereafter removed from such areas of the surface which are not intended for current conducting or shielding
- H05K3/022—Processes for manufacturing precursors of printed circuits, i.e. copper-clad substrates
Landscapes
- Coating Apparatus (AREA)
- Reinforced Plastic Materials (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、積層板製造用のプリプ
レグの製造法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of manufacturing a prepreg for manufacturing a laminated board.
【０００２】[0002]
【従来の技術】プリプレグの製造は、図２に示すよう
に、シート状の基材１（紙、ガラス織布、ガラス不織布
等）を熱硬化性樹脂ワニス２中に浸漬し、基材１に樹脂
ワニスを含浸した後一対のスクイズロール３、３’の間
隙に基材１を通す。そして、乾燥炉４に導いて樹脂を半
硬化状態にまでもっていく。スクイズロール３、３’
は、基材１に付着した余分の樹脂をかき落として付着樹
脂量を調整するものであり、スクイズロール３、３’の
間隙の大きさにより付着樹脂量を調整している。一対の
スクイズロール３、３’は、基材１の移動方向に対して
反対方向で、互いに等しい周速度で回転している。2. Description of the Related Art As shown in FIG. 2, a prepreg is manufactured by immersing a sheet-shaped base material 1 (paper, glass woven cloth, glass non-woven cloth, etc.) in a thermosetting resin varnish 2 to form a base material 1. After impregnating the resin varnish, the substrate 1 is passed through the gap between the pair of squeeze rolls 3 and 3 '. Then, the resin is introduced into the drying furnace 4 to bring the resin into a semi-cured state. Squeeze roll 3, 3 '
Is for scraping off the excess resin adhering to the base material 1 to adjust the amount of adhering resin, and the amount of adhering resin is adjusted by the size of the gap between the squeeze rolls 3, 3 ′. The pair of squeeze rolls 3 and 3 ′ rotate in opposite directions to the moving direction of the base material 1 and at the same peripheral speed.
【０００３】[0003]
【発明が解決しようとする課題】上記のような方法によ
れば、基材１の両面には、等しい量の樹脂が付着する。
しかし、片面銅張り積層板のような場合で、その厚さ方
向で含浸樹脂量に差をつけることによって、積層板の反
りを抑制することがある。このような場合に、プリプレ
グの表裏で付着樹脂量に差をつけられると都合がよい。According to the method as described above, the same amount of resin adheres to both surfaces of the base material 1.
However, in the case of a single-sided copper-clad laminate, warping of the laminate may be suppressed by making the amount of impregnated resin different in the thickness direction. In such a case, it is convenient if the amount of adhered resin can be made different between the front and back of the prepreg.
【０００４】本発明が解決しようとする課題は、プリプ
レグの表裏で付着樹脂量に差をつけることを簡単に実施
できるようにすることである。The problem to be solved by the present invention is to make it easy to make a difference in the amount of adhered resin between the front and back of a prepreg.
【０００５】[0005]
【課題を解決するための手段】上記課題を解決するため
に、本発明に係る方法は、樹脂ワニスを含浸したシート
状の基材を、一対のスクイズロールの間に通して付着樹
脂量を調整した後乾燥を行なうプリプレグの製造におい
て、基材の移動に対するスクイズロールの周速度を基材
の表裏面で異ならせたことを特徴とする。In order to solve the above-mentioned problems, the method according to the present invention adjusts the amount of adhered resin by passing a sheet-shaped base material impregnated with a resin varnish between a pair of squeeze rolls. In the production of the prepreg which is then dried, the peripheral speed of the squeeze roll with respect to the movement of the base material is different between the front and back surfaces of the base material.
【０００６】[0006]
【作用】本発明に係る方法では、基材の表裏面で、基材
の移動に対するスクイズロールの周速度が異なってい
る。基材の移動に対してスクイズロールの周速度の大き
い側では、基材に付着した樹脂ワニスが多くかき落とさ
れることになる。これによって、基材の表裏面で付着樹
脂量に差をつけることが可能となる。In the method according to the present invention, the peripheral speed of the squeeze roll with respect to the movement of the base material is different between the front and back surfaces of the base material. On the side where the peripheral speed of the squeeze roll is large with respect to the movement of the base material, a large amount of resin varnish attached to the base material is scraped off. This makes it possible to make a difference in the amount of adhered resin between the front and back surfaces of the base material.
【０００７】[0007]
【実施例】図１により、本発明に係る実施例を説明す
る。一対のスクイズロール３、３’は、ベルト５によっ
て駆動されている。ベルト５をかけたスクイズロール
３、３’の回転軸の径に大小があり、また、スクイズロ
ール自体の径にも大小をつけて、これによって、スクイ
ズロール３、３’の間で周速度に差をつけている。Embodiment An embodiment according to the present invention will be described with reference to FIG. The pair of squeeze rolls 3 and 3 ′ is driven by the belt 5. The diameter of the rotating shaft of the squeeze rolls 3 and 3'on which the belt 5 is applied is large and small, and the diameter of the squeeze roll itself is also large and small, whereby the peripheral speed between the squeeze rolls 3 and 3'is increased. Making a difference.
【０００８】この例では、スクイズロール３、３’の両
方が基材１の移動方向に対して反対方向に回転している
が、一方を基材１の移動方向と同じ方向に回転させても
よい。In this example, both of the squeeze rolls 3 and 3'rotate in the opposite direction to the moving direction of the base material 1, but even if one of them is rotated in the same direction as the moving direction of the base material 1. Good.
【０００９】[0009]
【発明の効果】上述のように、本発明に係る方法では、
一対のスクイズロールの周速度を互いに異なるものにす
るだけで、表裏面で付着樹脂量に差をつけたプリプレグ
を簡単に製造することができる。付着樹脂量の差のつけ
方は、スクイズロールの周速度の調整で任意である。As described above, according to the method of the present invention,
A prepreg having different amounts of adhered resin on the front and back surfaces can be easily manufactured only by making the peripheral speeds of the pair of squeeze rolls different from each other. How to make the difference in the amount of adhered resin is arbitrary by adjusting the peripheral speed of the squeeze roll.
【図１】本発明に係る実施例の説明図である。FIG. 1 is an explanatory diagram of an embodiment according to the present invention.
【図２】従来のプリプレグの製造方法の説明図である。FIG. 2 is an explanatory diagram of a conventional prepreg manufacturing method.
１は基材、２は樹脂ワニス、３、３’はスクイズロール ４は乾燥炉、５はベルト 1 is a substrate, 2 is a resin varnish, 3'is a squeeze roll, 4 is a drying oven, 5 is a belt
Claims (1)
一対のスクイズロールの間に通して付着樹脂量を調整し
た後乾燥を行なうプリプレグの製造において、基材の移
動に対するスクイズロールの周速度を基材の表裏面で異
ならせたことを特徴とするプリプレグの製造法。1. A sheet-shaped base material impregnated with a resin varnish,
In the production of a prepreg in which the amount of adhered resin is adjusted by passing it between a pair of squeeze rolls and then dried, the peripheral speed of the squeeze roll relative to the movement of the base material is different on the front and back surfaces of the base material. Manufacturing method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP880191A JPH07102578B2 (en) | 1991-01-29 | 1991-01-29 | Prepreg manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP880191A JPH07102578B2 (en) | 1991-01-29 | 1991-01-29 | Prepreg manufacturing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04251712A JPH04251712A (en) | 1992-09-08 |
| JPH07102578B2 true JPH07102578B2 (en) | 1995-11-08 |
Family
ID=11702958
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP880191A Expired - Lifetime JPH07102578B2 (en) | 1991-01-29 | 1991-01-29 | Prepreg manufacturing method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07102578B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014231646A (en) * | 2013-05-28 | 2014-12-11 | 日東電工株式会社 | Method for producing anticorrosion sheet and facility for producing anticorrosion sheet |
| JP6357788B2 (en) * | 2014-02-10 | 2018-07-18 | 日立化成株式会社 | Prepreg, metal-clad laminate and printed wiring board |
-
1991
- 1991-01-29 JP JP880191A patent/JPH07102578B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH04251712A (en) | 1992-09-08 |
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