JPS5854659B2 - Patterned sheet manufacturing equipment - Google Patents
Patterned sheet manufacturing equipmentInfo
- Publication number
- JPS5854659B2 JPS5854659B2 JP54001301A JP130179A JPS5854659B2 JP S5854659 B2 JPS5854659 B2 JP S5854659B2 JP 54001301 A JP54001301 A JP 54001301A JP 130179 A JP130179 A JP 130179A JP S5854659 B2 JPS5854659 B2 JP S5854659B2
- Authority
- JP
- Japan
- Prior art keywords
- die
- wedge
- roll
- pattern
- pattern roll
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/30—Extrusion nozzles or dies
- B29C48/35—Extrusion nozzles or dies with rollers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/07—Flat, e.g. panels
- B29C48/08—Flat, e.g. panels flexible, e.g. films
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Moulding By Coating Moulds (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Description
【発明の詳細な説明】
本発明は模様付きシートの製造装置に係わり、特に、表
面に凹凸模様を形成する装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an apparatus for manufacturing a patterned sheet, and particularly to an apparatus for forming an uneven pattern on the surface.
一般に、合成樹脂シート、例えばポリアミド樹脂シート
上に所定の形状の凹凸模様を形成する装置として、ダイ
から溶融したポリアミド樹脂を模様付きロール上に押し
出し、所定の形状の凹凸模様を形成する装置が知られて
いる。Generally, as a device for forming a pattern of unevenness in a predetermined shape on a synthetic resin sheet, such as a polyamide resin sheet, there is a known device that extrudes molten polyamide resin from a die onto a patterned roll to form a pattern of unevenness in a predetermined shape. It is being
例えば特公昭４８−１７０９４号、特公昭５１−９７８
５号、特公昭５１−２２９４４号公報記載の装置が知ら
れている。For example, Special Publication No. 48-17094, Special Publication No. 51-978
5 and Japanese Patent Publication No. 51-22944 are known.
しかし、これらの装置は溶融樹脂の圧入、固化点が一対
のエンボスロール、するいはエンボスロール・ニップル
ロールの接点のみであるため、ロール模様のシートへの
転写塵が悪いという欠点があった。However, in these devices, the molten resin is press-fitted and solidified only at the point of contact between the pair of embossing rolls or the embossing roll and the nipple roll, so there is a drawback that dust is poorly transferred to the sheet with the roll pattern.
また、低粘度のポリアミドではダイから出た溶融樹脂の
ドローダウンが起り、ロール間にパンクが生じる。Furthermore, in the case of low-viscosity polyamide, drawdown of the molten resin from the die occurs, resulting in punctures between the rolls.
このため、シート表面に波模様がついてしまうという欠
点もある。For this reason, there is also a drawback that a wavy pattern is formed on the sheet surface.
また、特公昭３８−８９８３号公報記載の発明は、ロー
ルが自由回転する構造であるため、溶融粘度が低い樹脂
を用いたり、浅溝の模様シートを成形する場合、ロール
の回転がスムースに行なわれない。Furthermore, since the invention described in Japanese Patent Publication No. 38-8983 has a structure in which the roll rotates freely, the roll can rotate smoothly when using a resin with a low melt viscosity or when molding a patterned sheet with shallow grooves. Not possible.
また、巻取装置とロールとの連動がないため、特に高速
成形ができないという欠点がある。Furthermore, since there is no interlocking between the winding device and the rolls, there is a drawback that high-speed molding cannot be performed.
さらに、特公昭５２−１５６２９号公報記載の発明は模
様付きロール表面とダイ間で溶融樹脂が圧力密封関係に
ある。Further, in the invention described in Japanese Patent Publication No. 52-15629, the molten resin is in a pressure-sealed relationship between the patterned roll surface and the die.
このため、押出機による圧力変動の影響を受ける欠点が
ある。Therefore, it has the disadvantage of being affected by pressure fluctuations caused by the extruder.
本発明は以上のような従来の欠点を除去したものであり
、合成樹脂シートの表面に確実に凹凸模様を形成するこ
とができる模様付きシートの製造装置を提供するにある
。The present invention eliminates the above-mentioned conventional drawbacks and provides a patterned sheet manufacturing apparatus that can reliably form an uneven pattern on the surface of a synthetic resin sheet.
以下、図面に示す実施例と共に本発明の詳細な説明する
。Hereinafter, the present invention will be described in detail together with embodiments shown in the drawings.
第１図は、装置全体の概略構造を説明するもので、図に
おいて符号１は押出機を示し、その後端のホッパ２から
供給された材料はスクリュ３によって順次送られ、ダイ
４に供給、される。FIG. 1 explains the schematic structure of the entire apparatus. In the figure, reference numeral 1 indicates an extruder, and material supplied from a hopper 2 at the rear end is sequentially sent by a screw 3, supplied to a die 4, and then Ru.
この時、材料の樹脂は溶融状態にあり、ダイ４の溝５か
ら流下し、くさび状ダイ６と、後部ダイＴとの間を通っ
て電動機によって矢印方向に回転される模様ロール８に
添って流れ、同時に冷却、固化されて、シート状になり
、模様ロール８０表面の模様が転写されてガイドローラ
９，１０に導かれ、ベルト駆動形式の引取機１１によっ
て引取られる。At this time, the resin material is in a molten state, flows down from the groove 5 of the die 4, passes between the wedge-shaped die 6 and the rear die T, and follows the pattern roll 8 which is rotated by the electric motor in the direction of the arrow. The sheet flows, is cooled and solidified at the same time, and becomes a sheet. The pattern on the surface of the pattern roll 80 is transferred thereto, guided to guide rollers 9 and 10, and taken up by a belt-driven take-up machine 11.
ダイ部分の詳細は第２図に示す如きであり、ダイ４の溝
５から押出された樹脂は、くさび状ダイ６の内側の斜面
６ａと模様ロール８との間に導かれ、模様ロール８の矢
印方向への回転によって生じる押圧力でダイ６の斜面６
ａに押し付けられ、この結果、樹脂は模様ロール８０局
面に形成された凹凸模様中に押し込まれて冷却固化する
。The details of the die part are as shown in FIG. The slope 6 of the die 6 is caused by the pressing force generated by the rotation in the direction of the arrow.
As a result, the resin is forced into the uneven pattern formed on the surface of the patterned roll 80, and is cooled and solidified.
なお、溶融樹脂の模様ロール８の軸方向への流れは第２
図に鎖線で示す模様ロール８の周面に沿った下端部の形
状を有する側板１２によって阻止される。Note that the flow of the molten resin in the axial direction of the pattern roll 8 is caused by the second flow.
It is blocked by a side plate 12 having the shape of the lower end along the circumferential surface of the pattern roll 8 shown by a chain line in the figure.
ところで、本発明の特徴はくさび状ダイ６の斜面６ａの
角度、後部ダイアの下端と模様ロール８の上面との間の
距離および模様ロール８の温度等をある値に制御したと
ころにある。By the way, the feature of the present invention is that the angle of the slope 6a of the wedge-shaped die 6, the distance between the lower end of the rear die and the upper surface of the pattern roll 8, the temperature of the pattern roll 8, etc. are controlled to certain values.
いま、成形機１の途中の点を０１．Ｃ２，Ｃ３とし、く
さび状ダイ６の下端部Ａと模様ロール８の中心Ｏを結ぶ
直線ｌと斜面６ａとのなす角度をθとし、斜面６ａの上
端部Ｂと模様ロール８の上面との間の距離をｄ。Now, set the point in the middle of molding machine 1 to 01. C2 and C3, the angle between the slope 6a and the straight line l connecting the lower end A of the wedge-shaped die 6 and the center O of the pattern roll 8 is θ, and the angle between the upper end B of the slope 6a and the upper surface of the pattern roll 8 is θ. d.
とじ、後部ダイアの下端部と模様ロール８の上面との間
の距離をｄとし、くさび状ダイ６の下端部Ａと模様ロー
ル８との間の距離をｔとして各種の実験を行なってみた
。Various experiments were conducted with the distance between the lower end of the rear die and the upper surface of the pattern roll 8 being d, and the distance between the lower end A of the wedge-shaped die 6 and the pattern roll 8 being t.
実験例 １
８、素材：
ナイロン６（数平均分子量Ｍｎ ＝ ２２０００ ）ｂ
、シートの模様：
第３図の通り。Experimental example 1 8. Material: Nylon 6 (number average molecular weight Mn = 22000)b
, Sheet pattern: As shown in Figure 3.
Ａは平面図。Ｂは断面図である。A is a plan view. B is a cross-sectional view.
Ｃ６模様ロール：
直径１２０％φのロール表面に第３図に示す模様のシー
トが得られるようにエンボス加工した。C6 pattern roll: The surface of the roll with a diameter of 120%φ was embossed so as to obtain a sheet with the pattern shown in FIG. 3.
模様部の幅は３００％。模様ロールは中空構造とし、温
度調整した水、あるいは油を循環させてロール表面温度
をコントロールした。The width of the pattern part is 300%. The pattern roll has a hollow structure, and temperature-controlled water or oil is circulated to control the roll surface temperature.
ｄ、ダイの構造：
θ＝９００、ｄｏ＝ １０Ｘ、ｔ＝０．３％としｄを種
々に変えて成形を行なった。d. Structure of die: Molding was performed with θ=900, do=10X, t=0.3%, and d was variously changed.
ｅ、押出機ニ
スクリユー径６５％、Ｌ／Ｄ＝２４ （Ｄ＝ニスクリユ
ー、Ｌ＝ニスクリユーさ）Ｃ／Ｒ（圧縮比）＝３．５
ｆ、成形条件：
成形温度 押出機１の各点温度（’Ｃ）
Ｃ＝２３０．Ｃ２＝２４０．、Ｃ３＝ ２５０、ヘッド
−２６０１ダイ４＝２６０
模様ロール８０表面温度＝１１０℃
引取速度
１００ ｃｌｎ／ｍｉｎ （押出量： １６）ｃｙ／ｈ
）３００ｃＩｒＬ／ｍ（押出量：４８に９／ｈ）以上
のような条件の下にｄを種々変化させて、ロール模様の
シートへの転写度およびシートの肉厚変動を調べたとこ
ろ第１表の如き結果を得た。e, Extruder varnish screw diameter 65%, L/D = 24 (D = varnish screw, L = varnish screw size) C/R (compression ratio) = 3.5 f, Molding conditions: Molding temperature Temperature at each point of extruder 1 ( 'C) C=230. C2=240. , C3 = 250, Head - 2601 Die 4 = 260 Pattern roll 80 surface temperature = 110°C Take-up speed 100 cln/min (Output amount: 16) cy/h
) 300cIrL/m (extrusion rate: 48 to 9/h) Under the above conditions, d was varied variously, and the degree of transfer of the roll pattern to the sheet and the variation in the thickness of the sheet were investigated.Table 1 I got results like this.
第１表の結果から明らかなようにｄ≧１．０で、かつ、
ｄ≦ｄｏである場合に、肉厚変動がなく、かつ、転写度
のよい模様付シートが得られる。As is clear from the results in Table 1, d≧1.0, and
When d≦do, a patterned sheet with no thickness variation and a good transfer degree can be obtained.
実験例 ２ ａ、素材： ナイロン６６ （Ｍｎ −２６０００） ｂ、シート模様： 第４図の通り。Experimental example 2 a. Material: Nylon 66 (Mn-26000) b. Sheet pattern: As shown in Figure 4.
Ａは平面図、Ｂは断面図である。A is a plan view, and B is a sectional view.
Ｃ０模様ロール：
実験例１に準じて第４図のシート模様に応じた表面彫刻
を行った。C0 pattern roll: According to Experimental Example 1, the surface was engraved according to the sheet pattern shown in FIG. 4.
ｄ、ダイの構造： ｄ＝５．０％で、θおよびｄ。d.Die structure: θ and d, with d=5.0%.
を変えて実験した。I experimented by changing the.
ｔ＝１．０％である。ｅ、押出機：
実験例１と同じ
ｆ、成形条件：
成形温度 押出機１の各点温度（’Ｃ）
Ｃ，＝２４０、Ｃ２＝２６０、Ｃ３＝２８０、ヘッド＝
２８０ ダイ＝２８０
模様ロール８０表面温度：１４０℃
引取速度 １００ｃｍ／ｍ
以上の条件の下にθおよびｄ。t=1.0%. e, Extruder: Same as Experimental Example 1 f, Molding conditions: Molding temperature Temperature at each point of extruder 1 ('C) C, = 240, C2 = 260, C3 = 280, Head =
280 die = 280 pattern roll 80 surface temperature: 140°C take-up speed 100 cm/m θ and d under the above conditions.
を変化させてロール模様のシートへの転写塵を調べたと
ころ第２表の如きであった。When the transfer dust on the roll pattern sheet was investigated by changing the temperature, the results were as shown in Table 2.
第２表の結果からも明らかなように角度θは、９０°≦
θ≦１２０°で、かつ ｄ。As is clear from the results in Table 2, the angle θ is 90°≦
θ≦120°, and d.
≦５０％がよいことがわかる。It can be seen that ≦50% is good.
実験例 ３ ａ、素材： 実験例１と同じ す、シートの模様： 同上 Ｃ６模様ロール： 同上 ｄ、ダイの構造： θ＝９０° ｄ＝５．０’％、ａｏ＝ １０．０’Ｘ。Experimental example 3 a. Material: Same as experimental example 1 The pattern of the sheet: Same as above C6 pattern roll: Same as above d.Die structure: θ=90° d=5.0’%, ao=10.0’X.
ｔ＝ｏ、３ｘ
ｅ、押出機：
実験例１と同じ
ｆ、成形条件：
成形温度 実験例１と同じ
引取速度 １００ｃｒｒＬ／Ｍ
以上の条件の下に模様ロールの表面温度を種々変化させ
て実験したところ第３表のような結果を得た。t=o, 3x e, extruder: same f as in Experimental Example 1, molding conditions: Molding temperature, same take-up speed as in Experimental Example 1, 100crrL/M Experiments were conducted under the above conditions by varying the surface temperature of the pattern roll. However, the results shown in Table 3 were obtained.
第３表の結果から明らかなように、模様ロールの表面温
度Ｔ’Ｃは９０℃≦Ｔ≦１５０℃がよいことがわかる。As is clear from the results in Table 3, it is found that the surface temperature T'C of the pattern roll is preferably 90°C≦T≦150°C.
この場合、材料はナイロン６で、その融点ｍｐは２１５
℃であるため、ｍｐ−１２５℃≦Ｔ≦ｍｐ −６５℃が
よいことがわかる。In this case, the material is nylon 6, whose melting point mp is 215
℃, it can be seen that mp-125°C≦T≦mp-65°C is good.
以上の説明から明らかなように、本発明によれば、くさ
び状ダイの傾斜角を所定範囲におさえ、後部ダイの下端
およびくさび状ダイの上端と模様ロールの上面との距離
を所定範囲に保ち、かつ、模様ロールの表面温度を所定
範囲に保つ構成とされているため、押出機側の圧力変動
による影響をほとんど受けずに、均一で、かつ、転写塵
のよい模様付きシートを得ることができる。As is clear from the above description, according to the present invention, the inclination angle of the wedge-shaped die is kept within a predetermined range, and the distance between the lower end of the rear die and the upper end of the wedge-shaped die and the upper surface of the pattern roll is maintained within a predetermined range. In addition, since the surface temperature of the pattern roll is maintained within a predetermined range, it is possible to obtain a patterned sheet that is uniform and has good transfer dust, almost unaffected by pressure fluctuations on the extruder side. can.
図は本発明の１実施例を説明するもので、第１図は全体
を説明する概略構成図、第２図はダイ部分の断面図、第
３図Ａ、Ｂおよび第４図Ａ、Ｂはそれぞれ異なったシー
ト模様を説明する平面図および断面図である。
１・・・・・・押出機、４・・・・・・ダイ、６・・・
・・・くさび状ダイ、７・・・・・・後部ダイ、８・・
・・・・模様ロール １１・・・・・・引取機。The drawings are for explaining one embodiment of the present invention. Fig. 1 is a schematic configuration diagram explaining the whole, Fig. 2 is a sectional view of the die portion, Fig. 3 A, B, and Fig. 4 A, B are FIG. 2 is a plan view and a cross-sectional view illustrating different sheet patterns. 1...Extruder, 4...Die, 6...
... Wedge-shaped die, 7... Rear die, 8...
...Pattern roll 11...Removal machine.
Claims (1)
ダイ本体と、このダイ本体の下部に対向して取付けられ
たくさび状ダイと後部ダイとを有し、くさび状ダイと近
接して回転する模様ロールとを有する模様付きシートの
製造装置において、くさび状ダイの下端と模様ロールの
中心を結ぶ直線とくさび状ダイの斜面とのなす角度をθ
、くさび状ダイの斜面の上端と模様ロールの上面との間
の距離をｄ。 、後部ダイの下端と模様ロールの上面との間の距離をｄ
とするとき、９０°≦θ≦１２ｄ：ｌで、かつ、１．０
％≦ｄ≦ｄｏ≦５０％とした模様付きシートの製造装置
。 ２ 押出機から供給される溶融樹脂を下方に流下させる
ダイ本体と、このダイ本体の下部に対向して取付けられ
たくさび状ダイと後部ダイとを有し、くさび状ダイと近
接して回転する模様ロールとを有し、くさび状ダイの下
端と模様ロールの中心を結ぶ直線とくさび状ダイの斜面
とのなす角度をθ、くさび状ダイの斜面の上端と模様ロ
ールの上面との間の距離をｄ。 、後部ダイの下端と模様ロールの上面との間の距離をｄ
とするとき、９００≦θ≦１２０°で、かつ １．０％
≦ｄ≦ｄｏ≦５０％とした模様付きシートの製造装置を
使用するに際し、模様付きシートの成形材料としてポリ
アミド樹脂を使用し、その融点をｍ−ｐ’Ｃとし、模様
ロールの表面温度をＴ℃としたとき、ｍ−ｐ −１２５
≦Ｔ≦ｍ、ｐ−６５とした模様付きシート製造装置の使
用方法。[Scope of Claims] 1. A wedge-shaped die having a die body through which molten resin supplied from an extruder flows downward, and a wedge-shaped die and a rear die mounted opposite to each other at the lower part of the die body. In a patterned sheet manufacturing apparatus that has a pattern roll that rotates in close proximity to
, d is the distance between the top of the wedge die slope and the top surface of the pattern roll. , the distance between the bottom edge of the rear die and the top surface of the pattern roll is d
When 90°≦θ≦12d:l and 1.0
A device for manufacturing a patterned sheet with %≦d≦do≦50%. 2. It has a die body that allows the molten resin supplied from the extruder to flow downward, and a wedge-shaped die and a rear die that are installed opposite to each other at the bottom of this die body, and that rotate in close proximity to the wedge-shaped die. The angle between the straight line connecting the lower end of the wedge-shaped die and the center of the pattern roll and the slope of the wedge-shaped die is θ, and the distance between the upper end of the slope of the wedge-shaped die and the top surface of the pattern roll is d. , the distance between the bottom edge of the rear die and the top surface of the pattern roll is d
When 900≦θ≦120°, and 1.0%
When using a patterned sheet manufacturing apparatus with ≦d≦do≦50%, polyamide resin is used as the molding material for the patterned sheet, its melting point is m-p'C, and the surface temperature of the patterned roll is T. ℃, m-p -125
≦T≦m, p-65, how to use the patterned sheet manufacturing apparatus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP54001301A JPS5854659B2 (en) | 1979-01-12 | 1979-01-12 | Patterned sheet manufacturing equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP54001301A JPS5854659B2 (en) | 1979-01-12 | 1979-01-12 | Patterned sheet manufacturing equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5595531A JPS5595531A (en) | 1980-07-19 |
| JPS5854659B2 true JPS5854659B2 (en) | 1983-12-06 |
Family
ID=11497645
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP54001301A Expired JPS5854659B2 (en) | 1979-01-12 | 1979-01-12 | Patterned sheet manufacturing equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5854659B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58119842A (en) * | 1982-01-12 | 1983-07-16 | Inax Corp | Method of providing pattern to extrudate |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5215629A (en) * | 1975-07-23 | 1977-02-05 | Ngk Insulators Ltd | Glass for melt spinning of high-melting metallic fibers |
-
1979
- 1979-01-12 JP JP54001301A patent/JPS5854659B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5595531A (en) | 1980-07-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4062918A (en) | Method for producing a printed thermoplastic resin tape for packaging | |
| US4079114A (en) | Method and apparatus for embossing sheets | |
| US3594870A (en) | Apparatus for the production of filaments from foils | |
| US3320225A (en) | Method for manufacturing a plastic hinge | |
| US6060003A (en) | Method and apparatus for making lenticular plastics | |
| US3550826A (en) | Method for preparing extremely fine fibrous webs | |
| JPS6248524A (en) | Continuous manufacture and device for thermoplastic plastic web | |
| US3635614A (en) | Apparatus for producing embossed plastic articles | |
| US4627804A (en) | Sheet forming apparatus | |
| US4017575A (en) | Production of a flat thermoplastic film by passing the film over a bearing having a lubricating fluid on the surface thereof | |
| TW206994B (en) | ||
| JP2001121604A (en) | Production of lenticular raw materials | |
| JPS5854659B2 (en) | Patterned sheet manufacturing equipment | |
| US3907478A (en) | Production of polymer fibers | |
| JP3124561B2 (en) | Rubber sheet member for tire | |
| JP2006513802A (en) | Non-slip sheet manufacturing equipment for mats and manufactured sheets | |
| US3904725A (en) | Quenching molten thermoplastic film | |
| JPS6030257B2 (en) | Manufacturing equipment for thermoplastic synthetic resin sheets with double-sided patterns | |
| KR19990068776A (en) | emboss forming apparatus and its method for vinyl sheet | |
| US5618373A (en) | Apparatus for forming extruded filament mat material | |
| US3790326A (en) | Extrusion apparatus | |
| US3107191A (en) | Method and apparatus for extruding plastic film | |
| KR200206065Y1 (en) | Reflective sheet molder capable of successive production | |
| JPH08230018A (en) | Production equipment of thermoplastic synthetic resin sheet-like formed article | |
| CA1046722A (en) | Manufacture of synthetic fibres and yarns |