JPH05125659A - Method for measuring bend of stitch of fiber woven cloth - Google Patents
Method for measuring bend of stitch of fiber woven clothInfo
- Publication number
- JPH05125659A JPH05125659A JP28333691A JP28333691A JPH05125659A JP H05125659 A JPH05125659 A JP H05125659A JP 28333691 A JP28333691 A JP 28333691A JP 28333691 A JP28333691 A JP 28333691A JP H05125659 A JPH05125659 A JP H05125659A
- Authority
- JP
- Japan
- Prior art keywords
- woven fabric
- stitch
- bend
- light
- woven cloth
- 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.)
- Pending
Links
Classifications
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06H—MARKING, INSPECTING, SEAMING OR SEVERING TEXTILE MATERIALS
- D06H3/00—Inspecting textile materials
- D06H3/12—Detecting or automatically correcting errors in the position of weft threads in woven fabrics
- D06H3/125—Detecting errors in the position of weft threads
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、織布の目曲がりを測定
する方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for measuring the bending of a woven cloth.
【０００２】[0002]
【従来の技術】ガラス織布等の繊維織布は、その製造過
程あるいは使用時の巻出しの際に、部分的に糸の目曲が
りが生じることがある。この目曲がりは特に横糸に多く
発生する。このため、通常の織布を使用して得られた積
層板は反りやねじれの発生が多く、プリント配線板への
部品の実装やコネクタとの接続の不良、あるいは半田コ
ートのむらや実装部品の破壊などさまざまの障害が生じ
ていた。これら欠点を防止する手段として、樹脂のフロ
ーを小さくする、積層板成形後あるいは積層板に回路パ
ターンを形成後反りを修正する反り直しをする等の方法
が取られていた。しかしながら、これらの方法では反
り、ねじれを十分に修正することができず、一層の改良
が望まれていた。2. Description of the Related Art Fiber woven fabrics such as glass woven fabrics may sometimes have some warp of yarns during the manufacturing process or unwinding during use. This warp occurs especially in the weft thread. For this reason, laminates obtained using ordinary woven fabrics are often warped and twisted, which causes improper mounting of components on the printed wiring board or connection with connectors, or uneven solder coat or destruction of mounted components. Various obstacles were occurring. As means for preventing these drawbacks, there have been adopted methods such as reducing the flow of resin, and performing warping for correcting warpage after molding a laminated board or after forming a circuit pattern on the laminated board. However, these methods cannot satisfactorily correct warpage and twist, and further improvement has been desired.
【０００３】[0003]
【発明が解決しようとする課題】このような点から、本
発明の目的とするところは、繊維織布の目曲がりのある
部分を適宜取り除いて、反り、ねじれのない積層板を得
るために、織布の目曲がりをあらかじめ測定することに
ある。SUMMARY OF THE INVENTION From this point of view, the object of the present invention is to appropriately remove the curved portion of the fiber woven fabric to obtain a laminated plate having no warp or twist. To measure the warp of the woven fabric in advance.
【０００４】[0004]
【課題を解決するための手段】本発明は、熱硬化性樹脂
積層板の基材として使用する繊維織布の目曲がりを測定
する方法において、連続的に移動する繊維織布又は熱硬
化性樹脂含浸後のプリプレグに平行して、該織布と同一
ないし同じ打込み本数の目曲がりのない織布又は前記の
図柄を印刷した光透過性シートを配置し、更にその一方
の側から光を前記織布又はプリプレグの移動速度に応じ
て一定間隔で間歇的に照射することにより目曲がりを測
定することを特徴とする繊維織布の目曲がり測定方法を
要旨とするものである。DISCLOSURE OF THE INVENTION The present invention is a method for measuring the bending of a fiber woven fabric used as a base material for a thermosetting resin laminate, wherein the fiber woven fabric or thermosetting resin is continuously moving. In parallel with the prepreg after the impregnation, a woven fabric having the same or the same number of stitches as the woven fabric, which is not bent, or a light-transmissive sheet on which the above-mentioned pattern is printed, is arranged, and light is radiated from one side of the woven fabric. The gist of the present invention is to provide a method for measuring the bending of a fiber woven fabric, which is characterized by measuring the bending of the fiber or prepreg by intermittently irradiating the cloth or prepreg at regular intervals.
【０００５】本発明において、繊維織布はガラス織布、
合成繊維織布等であり、特に限定されない。熱硬化性樹
脂は、エポキシ樹脂、フェノール樹脂、不飽和ポリエス
テル樹脂等である。In the present invention, the fiber woven cloth is glass woven cloth,
It is a synthetic fiber woven fabric or the like and is not particularly limited. The thermosetting resin is epoxy resin, phenol resin, unsaturated polyester resin, or the like.
【０００６】織布の目曲がりは、通常織布のメーカによ
り一つの巻物の中で何点かは測定されているが、織布の
すべてを測定しているものではない。この目曲がりの測
定は、工数がかかり、正確に定量化することも困難であ
る。The bending of the woven cloth is usually measured by a woven cloth manufacturer at several points in one roll, but not all of the woven cloth is measured. The measurement of the eye-bend requires a lot of man-hours and is difficult to quantify accurately.
【０００７】本発明は、織布を巻出し樹脂含浸する前、
又は樹脂に含浸してプリプレグとした後、連続的に移動
している織布あるいはプリプレグを停止することなく、
織布の目曲がりを目曲がりのない標準のもの（織布と同
一ないし同じ打込み本数の織布又は前記の図柄を有する
光透過性シート）と比較することにより繊維織布の目曲
がりを測定するものである。According to the present invention, before the woven cloth is unwound and impregnated with resin,
Or, after impregnating the resin into a prepreg, without stopping the woven fabric or prepreg that is continuously moving,
Measure the bending of a woven fabric by comparing the bending of the woven fabric with a standard product without bending (the same or the same number of woven fabrics as the woven fabric or a light-transmitting sheet having the above pattern). It is a thing.
【０００８】以下、繊維織布の目曲がりを測定する方法
について、具体的に説明する。図１に繊維織布の目曲が
りの測定方法の概略図を示す。光源のランプ１からの光
はレンズ２を通って平行な光束となる。この光束と垂直
方向に繊維織布３を連続的に移動させる。この織布の光
源ランプ側又は裏側に標準の織布（又は光透過性シー
ト）４を配置する。更に、ランプと反対側に、移動する
織布３と標準の織布４を通過した光を投影するスクリー
ン５を配置する。The method for measuring the bending of the fiber woven fabric will be specifically described below. FIG. 1 shows a schematic diagram of a method for measuring the bending of a fiber woven fabric. The light from the lamp 1 of the light source passes through the lens 2 and becomes a parallel light flux. The fiber woven fabric 3 is continuously moved in the direction perpendicular to the light flux. A standard woven cloth (or a light transmissive sheet) 4 is arranged on the light source lamp side or the back side of this woven cloth. Further, on the side opposite to the lamp, a screen 5 for projecting the light passing through the moving woven fabric 3 and the standard woven fabric 4 is arranged.
【０００９】ランプ１は、移動する織布３がスクリーン
５に実質的に静止して映し出されるように織布３の移動
速度及び織布３の横糸の間隔に応じて間歇的に光を発す
るようにする。標準の織布４は、その投影図柄が織布３
の投影図柄と重なるように位置を固定する。The lamp 1 intermittently emits light according to the moving speed of the woven cloth 3 and the spacing between the weft threads of the woven cloth 3 so that the moving woven cloth 3 is projected on the screen 5 substantially stationary. To The standard woven cloth 4 has a projected pattern of woven cloth 3
Fix the position so that it overlaps with the projected pattern of.
【００１０】以上のような配置の元に、織布３を連続的
に移動させながら、ランプ１から光を照射すると、織布
３の目曲がりのない部分では、図２のような図柄がスク
リーン５に映し出される。一方、目曲がりのある部分で
は、例えば図３のような図柄が映し出され、目曲がりの
状態が明瞭の示される。このようにして、織布の目曲が
りのある部分をチェックすることができる。When the woven cloth 3 is continuously moved and light is emitted from the lamp 1 based on the above-mentioned arrangement, a pattern as shown in FIG. It is projected on 5. On the other hand, in the portion where the eyes are bent, for example, a pattern as shown in FIG. 3 is projected, and the state of the eyes is clearly shown. In this way, it is possible to check the folds of the woven fabric.
【００１１】前述の如く、目曲がりのある織布を使用す
ると反り、ねじれなどの発生しやすい積層板が成形され
る。かかる反り、ねじれの防止のためには、目曲がりの
ある織布を取り除く必要があるが、その方法の一例とし
て前記の方法によりスクリーン５に投影された図柄にお
いて、目曲がりによる位置のずれの最大値を求め、その
許容値と比較し許容範囲外であれば、織布に印を付し、
プリプレグとした後の切断工程で、その部分を取り除け
ばよい。織布の位置ずれの大きさはスクリーンの図柄を
コンピュータ処理する等の方法により容易に求められ
る。また、許容範囲を予め記憶しておけばその許容範囲
と比較してその範囲外の場合、自動的にマーキングする
ように設定しておけばよい。As described above, when a woven fabric having a bend is used, a laminated plate which is liable to be warped or twisted is formed. In order to prevent such warping and twisting, it is necessary to remove the woven fabric having a bend, but as an example of the method, in the pattern projected on the screen 5 by the above-mentioned method, the maximum deviation of the position due to the bend is observed. Obtain the value, compare it with the allowable value, and if it is outside the allowable range, mark the woven cloth,
The part may be removed in the cutting step after forming the prepreg. The size of the displacement of the woven cloth can be easily obtained by a method such as computer processing of the design of the screen. If the allowable range is stored in advance, it may be set so as to be automatically marked when the allowable range is compared with the allowable range.
【００１２】[0012]
【発明の効果】本発明の方法によれば、連続した織布の
なかで目曲がりがあり、積層板に反りやねじれを生じさ
せる部分を連続的にチェックすることができる。従っ
て、目曲がりのないあるいは小さい織布を使用して積層
板を成形することができるので、反り、ねじれなどのな
い、プリント回路板として好適な積層板を容易に得るこ
とができる。EFFECTS OF THE INVENTION According to the method of the present invention, it is possible to continuously check a portion of a continuous woven cloth which has a warp and causes warpage or twist in the laminate. Therefore, the laminated board can be formed by using a woven cloth having no or small bends, so that the laminated board suitable for a printed circuit board without warping or twisting can be easily obtained.
【図１】織布の目曲がり測定方法を示す概略断面図FIG. 1 is a schematic cross-sectional view showing a method for measuring a warp of a woven fabric.
【図２】織布の目曲がりのない部分の投影図[Fig. 2] A projection view of a portion of the woven cloth having no bending.
【図３】織布の目曲がりのある部分の投影図FIG. 3 is a projection view of a portion of the woven cloth with a curved line.
１ 光源のランプ ２ レンズ ３ 連続的に移動する繊維織布 ４ 標準の織布又は光透過性シート ５ スクリーン 1 Light source lamp 2 Lens 3 Continuously woven fiber woven fabric 4 Standard woven fabric or light transmissive sheet 5 Screen
Claims (1)
る繊維織布の目曲がりを測定する方法において、連続的
に移動する繊維織布又は熱硬化性樹脂含浸後のプリプレ
グに平行して、該織布と同一ないし同じ打込み本数の目
曲がりのない織布又は前記の図柄を印刷した光透過性シ
ートを配置し、更にその一方の側から光を前記織布又は
プリプレグの移動速度に応じて一定間隔で間歇的に照射
することにより目曲がりを測定することを特徴とする繊
維織布の目曲がり測定方法。1. A method for measuring the bending of a fiber woven fabric used as a base material for a thermosetting resin laminate, wherein the fiber woven fabric is continuously moving or parallel to a prepreg after impregnation with the thermosetting resin. The woven cloth having the same or the same number of stitches as the woven cloth or the light-transmissive sheet on which the above-mentioned pattern is printed is arranged, and light is applied from one side thereof according to the moving speed of the woven cloth or prepreg. A method for measuring the bending of a fiber woven fabric, which comprises measuring the bending of the fiber by intermittently irradiating it at regular intervals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28333691A JPH05125659A (en) | 1991-10-29 | 1991-10-29 | Method for measuring bend of stitch of fiber woven cloth |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28333691A JPH05125659A (en) | 1991-10-29 | 1991-10-29 | Method for measuring bend of stitch of fiber woven cloth |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH05125659A true JPH05125659A (en) | 1993-05-21 |
Family
ID=17664160
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP28333691A Pending JPH05125659A (en) | 1991-10-29 | 1991-10-29 | Method for measuring bend of stitch of fiber woven cloth |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH05125659A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102866168A (en) * | 2011-06-28 | 2013-01-09 | 空中客车西班牙运营有限责任公司 | Marking and recognizing defect in preimpregnated material |
-
1991
- 1991-10-29 JP JP28333691A patent/JPH05125659A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102866168A (en) * | 2011-06-28 | 2013-01-09 | 空中客车西班牙运营有限责任公司 | Marking and recognizing defect in preimpregnated material |
| JP2013033033A (en) * | 2011-06-28 | 2013-02-14 | Airbus Espana S L | Marking of prepreg materials and defect recognition method thereof |
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