JPH04251712A - Manufacture of prepreg - Google Patents
Manufacture of prepregInfo
- Publication number
- JPH04251712A JPH04251712A JP880191A JP880191A JPH04251712A JP H04251712 A JPH04251712 A JP H04251712A JP 880191 A JP880191 A JP 880191A JP 880191 A JP880191 A JP 880191A JP H04251712 A JPH04251712 A JP H04251712A
- Authority
- JP
- Japan
- Prior art keywords
- resin
- prepreg
- base material
- squeeze
- base
- 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.)
- Granted
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 7
- 239000011347 resin Substances 0.000 claims abstract description 24
- 229920005989 resin Polymers 0.000 claims abstract description 24
- 239000002966 varnish Substances 0.000 claims abstract description 7
- 239000000463 material Substances 0.000 claims description 17
- 238000000034 method Methods 0.000 description 5
- 238000001035 drying Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 238000007598 dipping method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 239000002759 woven fabric Substances 0.000 description 1
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)
Abstract
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 for producing prepregs for producing laminates.
【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。[Prior Art] As shown in FIG. 2, prepreg is produced by dipping a sheet-like base material 1 (paper, glass woven fabric, glass non-woven fabric, etc.) into a thermosetting resin varnish 2. After being impregnated with resin varnish, the base material 1 is passed through the gap between a pair of squeeze rolls 3 and 3'. Then, the resin is introduced into a drying oven 4 to bring the resin to a semi-hardened state. Squeeze rolls 3 and 3' are
The amount of adhering resin is adjusted by scraping off excess resin adhering to the base material 1, 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 at mutually equal circumferential speeds.
【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 described above, an equal amount of resin is deposited on both sides of the base material 1. However, in the case of a single-sided copper-clad laminate, warping of the laminate may be suppressed by varying the amount of impregnated resin in the thickness direction. In such cases, it is convenient if the amount of resin adhered to the front and back sides of the prepreg can be differentiated.
【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。[0004] The problem to be solved by the present invention is to make it possible to easily differentiate the amount of resin deposited on the front and back sides 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。[Means for Solving the Problems] In order to solve the above problems, the method according to the present invention involves passing a sheet-like base material impregnated with resin varnish between a pair of squeeze rolls to adjust the amount of attached resin. In the production of prepreg which is dried after drying, the method is characterized in that the circumferential speed of the squeeze roll relative to the movement of the base material is made different on 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。[Operation] In the method according to the present invention, the circumferential speed of the squeeze roll relative to the movement of the substrate is different between the front and back surfaces of the substrate. On the side where the circumferential speed of the squeeze roll is high relative to the movement of the base material, a large amount of the resin varnish adhering to the base material is scraped off. This makes it possible to differentiate the amount of resin adhered to 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 explained with reference to FIG. A pair of squeeze rolls 3 and 3' are driven by a belt 5. Squeeze roll 3 with belt 5,
The diameter of the rotating shaft 3' is different in size, and the diameter of the squeeze roll itself is also different in size, thereby making a difference in peripheral speed between the squeeze rolls 3 and 3'.
【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 squeeze rolls 3 and 3' are rotating 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。[Effects of the Invention] As mentioned above, in the method according to the present invention,
By simply setting the circumferential speeds of a pair of squeeze rolls to be different from each other, it is possible to easily produce prepregs with different amounts of resin deposited on the front and back surfaces. The difference in the amount of deposited resin can be created arbitrarily by adjusting the circumferential 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 base material, 2 is a resin varnish, 3, 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。Claim 1: A sheet-like base material impregnated with resin varnish,
In the production of prepreg, which is passed between a pair of squeeze rolls to adjust the amount of adhering resin and then dried, the prepreg is characterized in that the circumferential speed of the squeeze roll relative to the movement of the base material is made 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 true JPH04251712A (en) | 1992-09-08 |
| JPH07102578B2 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) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014192782A1 (en) * | 2013-05-28 | 2014-12-04 | 日東電工株式会社 | Process for producing rust-preventive sheet and equipment for producing rust-preventive sheet |
| JP2015147912A (en) * | 2014-02-10 | 2015-08-20 | 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
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014192782A1 (en) * | 2013-05-28 | 2014-12-04 | 日東電工株式会社 | Process for producing rust-preventive sheet and equipment for producing rust-preventive sheet |
| 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 |
| JP2015147912A (en) * | 2014-02-10 | 2015-08-20 | 日立化成株式会社 | Prepreg, metal-clad laminate, and printed wiring board |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH07102578B2 (en) | 1995-11-08 |
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