JPH089166B2 - Thermosetting resin prepreg manufacturing method - Google Patents
Thermosetting resin prepreg manufacturing methodInfo
- Publication number
- JPH089166B2 JPH089166B2 JP2312891A JP31289190A JPH089166B2 JP H089166 B2 JPH089166 B2 JP H089166B2 JP 2312891 A JP2312891 A JP 2312891A JP 31289190 A JP31289190 A JP 31289190A JP H089166 B2 JPH089166 B2 JP H089166B2
- Authority
- JP
- Japan
- Prior art keywords
- base material
- varnish
- thermosetting resin
- rotating roll
- resin prepreg
- 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
Landscapes
- Reinforced Plastic Materials (AREA)
Description
【発明の詳細な説明】 ［産業上の利用分野］ 本発明は積層板、印刷配線板等に用いられる熱硬化性
樹脂プリプレグの製造法に関する。TECHNICAL FIELD The present invention relates to a method for producing a thermosetting resin prepreg used for laminated boards, printed wiring boards and the like.
［従来の技術］ ガラス布等のシート状基材に樹脂ワニスを含浸させる
場合、樹脂ワニスは基材に均等均一に塗布されること、
すなわち樹脂は表裏面のみならず基材厚みの中心部まで
均等量含浸塗布され、各部の樹脂量の分布がむらなく均
一であることが重要である。基材への含浸が不十分であ
ると積層板の耐熱性が低下し、また塗りむらの発生は塗
工基材表面の平滑性に欠けることから、積層板の加熱加
圧時の成形工程でのボイド、板厚バラツキ等の成形不良
の原因となる。[Prior Art] When a sheet-like base material such as a glass cloth is impregnated with a resin varnish, the resin varnish should be uniformly applied to the base material,
That is, it is important that the resin is impregnated and applied not only to the front and back surfaces but also to the central portion of the thickness of the substrate, and the distribution of the resin amount in each portion is even and uniform. Insufficient impregnation of the base material lowers the heat resistance of the laminate, and uneven coating occurs because the surface of the coated base material lacks in smoothness. Will cause molding defects such as voids and plate thickness variations.
従来、塗りむらのない含浸性に優れた熱硬化性樹脂プ
リプレグを得る方法として、実公昭58−54984号公報に
示されているようにキスコート方式でワニスを含浸する
方法がある。Conventionally, as a method for obtaining a thermosetting resin prepreg which has no coating unevenness and is excellent in impregnation property, there is a method of impregnating a varnish by a kiss coat method as disclosed in Japanese Utility Model Publication No. 58-54984.
［発明が解決しようとする課題］ しかしながら、上記方法は塗りむらが少なく、良好な
含浸性を有する熱硬化性樹脂プリプレグを得るのに十分
な方法ということはできない。[Problems to be Solved by the Invention] However, the above method cannot be said to be a sufficient method for obtaining a thermosetting resin prepreg having less uneven coating and good impregnation properties.
本発明は、塗りむらが少なくかつ含浸性の良好な熱硬
化性合成樹脂プリプレグを製造する方法を提供するもの
である。The present invention provides a method for producing a thermosetting synthetic resin prepreg with less uneven coating and good impregnability.
［課題を解決するための手段］ 本発明は、連続するシート状の積層板用基材を複数の
ガイドとなる回転ロールに沿って移動させながら基材に
ワニスを含浸させる工程を有する熱硬化性樹脂プリプレ
グの製造法において、前記基材をワニス含浸タンク内に
設けられた下部回転ロールを通した後、ワニス含浸タン
クの上部に設けられた上部回転ロールを通すとともに、
上記の下部回転ロールと上部回転ロールの間において、
２本の棒状部材を基材の進行方向が変わるように基材の
表と裏にそれぞれ基材幅方向に間隔をあけて接触させる
ことを特徴とする熱硬化性樹脂プリプレグの製造方法を
提供するものである。[Means for Solving the Problems] The present invention is a thermosetting process including a step of impregnating a varnish into a base material while moving a continuous sheet-shaped base material for a laminate along a plurality of guide rotating rolls. In the method for producing a resin prepreg, after passing the base material through the lower rotating roll provided in the varnish impregnation tank, while passing through the upper rotating roll provided at the upper part of the varnish impregnation tank,
Between the above lower rotating roll and upper rotating roll,
Provided is a method for producing a thermosetting resin prepreg, characterized in that two rod-shaped members are brought into contact with the front and back of a base material at intervals in the width direction of the base material so that the traveling direction of the base material changes. It is a thing.
すなわち、本発明においては塗りむらの原因である基
材表面への余分な樹脂の付着を防ぐため、ガラス布等の
シート状基材をワニスに含浸後、円柱状のステンレス製
の棒等の棒状部材を基材の進行方向が変るように基材幅
方向に接触させ、付着量が均一になるようにしている。
この棒状部材の径は15〜25mmのものが好まし。また、棒
状部材はそれぞれ基材の表と裏に順次接触させる。That is, in the present invention, in order to prevent excess resin from adhering to the surface of the base material, which is the cause of uneven coating, after impregnating the varnish with a sheet-like base material such as a glass cloth, a rod-shaped rod such as a cylindrical stainless rod The members are brought into contact with each other in the width direction of the base material so that the advancing direction of the base material changes, so that the adhesion amount becomes uniform.
The diameter of this rod-shaped member is preferably 15 to 25 mm. Further, the rod-shaped members are brought into contact with the front and back of the base material, respectively.
このとき、棒状部材の基材への接触回数は１回だけで
は幅方向の塗りむらを十分になくすことができないた
め、２回以上とすることが望ましい。すなわち、基材は
２組以上の下部回転ロールと上部回転ロールを通すこと
が望ましい。また、基材の進行方向の変化する角度は５
゜〜10゜であることが望ましい。これは５゜未満では余
分な樹脂を取り除く効果が薄く、また10゜を超えると基
材に過度のテンションがかかるため、シワや目曲りをお
こす可能性が大きくなるからである。At this time, it is preferable to make the number of contact of the rod-shaped member with the base material twice or more because the coating unevenness in the width direction cannot be sufficiently eliminated by only once. That is, it is desirable that the base material is passed through two or more sets of a lower rotating roll and an upper rotating roll. Also, the changing angle of the traveling direction of the substrate is 5
It is desirable that the angle is between 10 and 10. This is because if it is less than 5 °, the effect of removing the excess resin is weak, and if it exceeds 10 °, excessive tension is applied to the substrate, which increases the possibility of wrinkling or bending.
また、本発明においては、ワニス含浸タンクの上部に
ガイドとなる回転ロールを設けてあるので、基材厚み方
向への樹脂の含浸性を確保するために、基材をワニスに
複数回繰り返し含浸させることが可能である。このと
き、上記回転ロールのワニス含浸タンクのワニス液面か
らの高さは800〜1200mmであることが望ましい。これ
は、800mm未満では、基材のワニス含浸繰り返し回数が
多くなるため効率が低下し、また1200mmを超えるとワニ
ス希釈溶剤の雰囲気中への揮発量が多くなるため、溶剤
歩留が悪化するからである。Further, in the present invention, since the rotating roll that serves as a guide is provided above the varnish impregnation tank, the varnish is repeatedly impregnated with the base material a plurality of times in order to ensure the impregnation of the resin in the thickness direction of the base material. It is possible. At this time, the height from the varnish liquid surface of the varnish impregnating tank of the rotating roll is preferably 800 to 1200 mm. This is because if it is less than 800 mm, the efficiency decreases because the varnish impregnation number of times of the base material increases, and if it exceeds 1200 mm, the volatile amount of the varnish diluting solvent increases in the atmosphere, and the solvent yield deteriorates. Is.
［実施例］ 以下、本発明を実施例に基づいて詳細に説明するが、
本発明はこれに限定されるものではない。EXAMPLES Hereinafter, the present invention will be described in detail with reference to Examples.
The present invention is not limited to this.
実施例 第１図は本発明を実施するワニス含浸装置の一例を示
す断面図であり、第２図は装置の平面図である。EXAMPLE FIG. 1 is a sectional view showing an example of a varnish impregnating apparatus for carrying out the present invention, and FIG. 2 is a plan view of the apparatus.
１はワニス含浸タンクで下部にワニス供給口２を有し
ている。３は上部回転ロール（径100mm）、５は下部回
転ロール（径100mm）で、連続するシート状の積層板用
基材６は下部回転ロール５と上部回転ロール３によりガ
イドされる。上部回転ロールと下部回転ロールの間のワ
ニス含浸タンクの上部には２本のステンレス棒４（径20
mm）が基材に接触するように配置されている。そして基
材の進行方向はこのステンレス棒によりそれぞれ５゜変
化するようになっている。A varnish impregnation tank 1 has a varnish supply port 2 in the lower part. 3 is an upper rotary roll (diameter 100 mm), 5 is a lower rotary roll (diameter 100 mm), and a continuous sheet-shaped substrate 6 for laminated plate is guided by the lower rotary roll 5 and the upper rotary roll 3. Two stainless steel rods 4 (diameter 20) are placed on top of the varnish impregnation tank between the upper and lower rotating rolls.
mm) is in contact with the substrate. The direction of travel of the substrate is changed by 5 ° by the stainless rod.
このようなワニス含浸工程を経て塗りむらが少なく含
浸性の良好なプリプレグが得られた。Through such a varnish impregnation step, a prepreg having less coating unevenness and good impregnation property was obtained.
［発明の効果］ 本発明のプリプレグ製造法においては、次の効果が達
成される。[Effects of the Invention] In the prepreg manufacturing method of the present invention, the following effects are achieved.
（１）基材の塗りむらが少なく、かつ含浸性の良好なプ
リプレグを得ることができるため、成形性及び耐熱性の
良好な積層板を得ることができる。(1) Since it is possible to obtain a prepreg having less uneven coating on the base material and good impregnation properties, it is possible to obtain a laminate having good moldability and heat resistance.
（２）ワニス中の希釈溶剤の揮発量を低減できるため、
歩留向上がはかれる。(2) Since it is possible to reduce the volatilization amount of the diluent solvent in the varnish,
Yield can be improved.
（３）上部回転ロールの液面からの高さの適正化をはか
ることにより、ワニス含浸タンク外へのワニスの飛散を
抑えることができ、周辺の清浄及び段取りに要する時間
を低減することができる。(3) By optimizing the height of the upper rotating roll from the liquid surface, it is possible to suppress the scattering of varnish to the outside of the varnish-impregnated tank, and it is possible to reduce the time required for cleaning the surroundings and setup. .
第１図は本発明を実施するワニス含浸装置の一例を示す
断面図であり、第２図は装置の平面図である。 符号の説明 １……ワニス含浸タンク、２……ワニス供給口 ３……上部回転ロール、４……ステンレス棒 ５……下部回転ロールFIG. 1 is a sectional view showing an example of a varnish impregnating apparatus for carrying out the present invention, and FIG. 2 is a plan view of the apparatus. Explanation of symbols 1 ... Varnish impregnation tank, 2 ... Varnish supply port 3 ... Upper rotating roll, 4 ... Stainless rod 5 ... Lower rotating roll
───────────────────────────────────────────────────── フロントページの続き (72)発明者 寺本 直樹 茨城県下館市大字小川1500番地 日立化成 工業株式会社下館工場内 (72)発明者 水野 裕 茨城県下館市大字小川1500番地 日立化成 工業株式会社下館工場内 (72)発明者 吉田 智顕 茨城県下館市大字小川1500番地 日立化成 工業株式会社下館工場内 (56)参考文献 特開 昭50−79574（ＪＰ，Ａ) 特開 昭50−79577（ＪＰ，Ａ) 特公 昭52−2943（ＪＰ，Ｂ２) 特公 昭52−6757（ＪＰ，Ｂ２) 特公 昭55−45017（ＪＰ，Ｂ２) ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Naoki Teramoto 1500 Ogawa, Shimodate, Ibaraki Hitachi Chemical Co., Ltd. Shimodate factory (72) Inventor Yu Mizuno 1500 Ogawa, Shimodate, Ibaraki Hitachi Chemical Co., Ltd. Shimodate Factory (72) Inventor Tomoaki Yoshida 1500 Ogawa, Shimodate City, Ibaraki Hitachi Chemical Co., Ltd. Shimodate Factory (56) References JP-A-50-79574 (JP, A) JP-A-50-79577 (JP) , A) JP-B 52-2943 (JP, B2) JP-B 52-6757 (JP, B2) JP-B 55-45017 (JP, B2)
Claims (3)
ガイドとなる回転ロールに沿って移動させながら基材に
ワニスを含浸させる工程を有する熱硬化性樹脂プリプレ
グの製造法において、前記基材をワニス含浸タンク内に
設けられた下部回転ロールを通した後、ワニス含浸タン
クの上部に設けられた上部回転ロールを通すとともに、
上記の下部回転ロールと上部回転ロールの間において、
２本の棒状部材を基材の進行方向が変わるように基材の
表と裏にそれぞれ基材幅方向に間隔をあけて接触させる
ことを特徴とする熱硬化性樹脂プリプレグの製造法。1. A method for producing a thermosetting resin prepreg, which comprises a step of impregnating a continuous sheet-shaped laminate base material along a plurality of guide rotating rolls to impregnate the base material with a varnish. After passing the base material through the lower rotating roll provided in the varnish impregnation tank, while passing the upper rotating roll provided at the upper part of the varnish impregnation tank,
Between the above lower rotating roll and upper rotating roll,
A method for producing a thermosetting resin prepreg, characterized in that two rod-shaped members are brought into contact with the front and back of the base material at intervals in the width direction of the base material so that the traveling direction of the base material changes.
た角度が５゜〜10゜である請求項１記載の熱硬化性樹脂
プリプレグの製造法。2. The method for producing a thermosetting resin prepreg according to claim 1, wherein the angle of change of the advancing direction of the substrate by each rod-shaped member is 5 ° to 10 °.
ス液面からの高さが800〜1200mmである請求項１又は２
記載の熱硬化性樹脂プリプレグの製造法。3. The height from the varnish liquid surface of the varnish impregnating tank of the upper rotating roll is 800 to 1200 mm.
A method for producing the thermosetting resin prepreg described.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2312891A JPH089166B2 (en) | 1990-11-20 | 1990-11-20 | Thermosetting resin prepreg manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2312891A JPH089166B2 (en) | 1990-11-20 | 1990-11-20 | Thermosetting resin prepreg manufacturing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04185404A JPH04185404A (en) | 1992-07-02 |
| JPH089166B2 true JPH089166B2 (en) | 1996-01-31 |
Family
ID=18034692
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2312891A Expired - Lifetime JPH089166B2 (en) | 1990-11-20 | 1990-11-20 | Thermosetting resin prepreg manufacturing method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH089166B2 (en) |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2528293A1 (en) * | 1975-06-25 | 1977-01-20 | Krupp Gmbh | STRAIGHT CONTROL DEVICE |
| JPS5545017A (en) * | 1978-09-25 | 1980-03-29 | Fuji Photo Film Co Ltd | Photosensitive material |
| JPS5756219A (en) * | 1980-09-18 | 1982-04-03 | Yokohama Rubber Co Ltd:The | Method and device for manufacture of resin impregnated cloth |
| JPS60165213A (en) * | 1984-02-09 | 1985-08-28 | Toshiba Chem Corp | Manufacture of prepreg for laminated board |
| JPS60166413A (en) * | 1984-02-10 | 1985-08-29 | Matsushita Electric Works Ltd | Impregnating method with resin to base material |
| JPH01104630A (en) * | 1987-10-16 | 1989-04-21 | Matsushita Electric Works Ltd | Production of prepreg |
| JPH01171675A (en) * | 1987-12-28 | 1989-07-06 | Sumitomo Bakelite Co Ltd | Method for regulating varnish pick-up into base material for laminate |
| JPH01283113A (en) * | 1988-05-11 | 1989-11-14 | Mitsubishi Electric Corp | Manufacture of prepreg |
-
1990
- 1990-11-20 JP JP2312891A patent/JPH089166B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH04185404A (en) | 1992-07-02 |
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