JPH08156084A - Manufacture of molded form - Google Patents
Manufacture of molded formInfo
- Publication number
- JPH08156084A JPH08156084A JP6294697A JP29469794A JPH08156084A JP H08156084 A JPH08156084 A JP H08156084A JP 6294697 A JP6294697 A JP 6294697A JP 29469794 A JP29469794 A JP 29469794A JP H08156084 A JPH08156084 A JP H08156084A
- Authority
- JP
- Japan
- Prior art keywords
- mold
- thermoplastic resin
- resin plate
- press
- cushion paper
- 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
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、気泡を包含せず、一面
が艶消し状態とされ、真空成形用材料として好適に用い
られる導電性を有する成形品の製造方法に関するもので
ある。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for producing an electrically conductive molded article which does not contain air bubbles and has a matte surface on one side and which is suitable for use as a vacuum molding material.
【０００２】[0002]
【従来の技術】従来、導電性を有する成形品の製造方法
としては、通常、図４に示す如く、別途押出成形により
連続成形され一定長さに切断された平滑な表面を有する
熱可塑性樹脂板ｂの両面に、導電性繊維ｃを積層した状
態にて、型面が鏡面加工されたプレス成形型ａ内に配設
して、熱プレス成形を行っていた。2. Description of the Related Art Conventionally, as shown in FIG. 4, a conventional method for producing an electrically conductive molded product is a thermoplastic resin plate having a smooth surface which is continuously molded by separate extrusion molding and cut into a certain length. In a state where conductive fibers c are laminated on both surfaces of b, they are arranged in a press molding die a whose surface is mirror-finished, and hot press molding is performed.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、このよ
うな従来方法による場合には、型締め時に、熱可塑性樹
脂板ｂの平滑な表面に、プレス成形型ａの鏡面加工され
た型面が瞬時に接触し、溶融した熱可塑性樹脂板ｂ中に
導電繊維ｃが空気を巻き込んだ状態にて埋設され易いた
めに、気泡が包含され、両面が鏡面に仕上がった成形品
しか得ることができない。However, according to such a conventional method, at the time of mold clamping, the mirror-finished mold surface of the press mold a is instantaneously formed on the smooth surface of the thermoplastic resin plate b. Since the conductive fibers c are easily embedded in the molten and contacted thermoplastic resin plate b in a state where air is entrained therein, air bubbles are included and only a molded product having both surfaces mirror-finished can be obtained.
【０００４】このような成形品を真空成形用材料として
用いて、真空成形法による二次加工を行った場合には、
包含された気泡が破裂したり、十分な艶消しを行うこと
ができなかったりして、外観及び物性に優れた導電性を
有する製品を得ることができないという問題点があっ
た。When such a molded product is used as a material for vacuum forming and is subjected to secondary processing by a vacuum forming method,
There was a problem that the contained air bubbles burst or could not be sufficiently delustered, so that it was not possible to obtain a product having conductivity and excellent appearance and physical properties.
【０００５】本発明、上記の如き従来の問題点を解消
し、気泡を包含せず、一面が艶消し状態とされ、真空成
形用材料として好適に用いられる導電性を有する成形品
の製造方法を提供することを目的としてなされたもので
ある。The present invention solves the above-mentioned conventional problems, provides a method for producing a molded article which does not contain air bubbles and has one surface in a matte state and which is suitable for use as a vacuum molding material. It was made for the purpose of providing.
【０００６】[0006]
【課題を解決するための手段】本発明１は、熱可塑性樹
脂板のいずれか一面にクッション紙を介在させ、他面に
導電性繊維を重ねるようにしてプレス成形型内に配設
し、プレス成形を行う成形品の製造方法である。DISCLOSURE OF THE INVENTION The first aspect of the present invention is to dispose a cushion paper on one surface of a thermoplastic resin plate and to dispose conductive fibers on the other surface of the thermoplastic resin plate so as to be arranged in a press molding die. It is a method of manufacturing a molded product for molding.
【０００７】本発明２は、本発明１のクッション紙とプ
レス成形型との間に、更に合成樹脂フィルムを介在させ
る成形品の製造方法である。The second aspect of the present invention is a method for producing a molded article, wherein a synthetic resin film is further interposed between the cushion paper of the first aspect and the press mold.
【０００８】本発明において、熱可塑性樹脂板を構成す
る熱可塑性樹脂としては、例えば、ポリ塩化ビニル、ポ
リエチレンやポリプロピレン等のポリオレフィン系樹
脂、ポリアミド、ポリエステル、ポリアクリロニトリ
ル、ポリカーボネート、ポリメチルメタクリレート等が
使用される。In the present invention, as the thermoplastic resin constituting the thermoplastic resin plate, for example, polyvinyl chloride, polyolefin resin such as polyethylene and polypropylene, polyamide, polyester, polyacrylonitrile, polycarbonate, polymethylmethacrylate, etc. are used. To be done.
【０００９】本発明において、導電繊維としては、例え
ば、金属繊維、カーボン繊維、金属吸着合成樹脂繊維、
金属メッキ合成樹脂繊維等が使用される。ここで、金属
吸着合成繊維としては、例えば、アクリル系繊維に銅イ
オンを吸着させた後に還元処理したものが、特に耐屈曲
性に優れているので好ましい。In the present invention, examples of the conductive fibers include metal fibers, carbon fibers, metal-adsorbed synthetic resin fibers,
Metal-plated synthetic resin fiber or the like is used. Here, as the metal-adsorbing synthetic fiber, for example, an acrylic fiber in which copper ions are adsorbed and then subjected to a reduction treatment is preferable because it is particularly excellent in bending resistance.
【００１０】本発明において、クッション紙とは、プレ
ス成形の際にプレス成形型間にて圧縮されたときにクッ
ション性を有し、表面が粗面とされており、且つ、プレ
ス成形時に熱可塑性樹脂と接着しないものであり、例え
ば、クラフト紙（再製紙）や、パルプの量がクラフト紙
より多いハンター紙等が挙げられる。クッション紙の坪
量としては、８０ｇ／ｍ2 程度が好適である。In the present invention, the cushion paper has a cushioning property when compressed between press molds during press molding, has a rough surface, and is thermoplastic during press molding. It does not adhere to the resin, and examples thereof include kraft paper (remade paper) and hunter paper in which the amount of pulp is larger than that of kraft paper. The basis weight of the cushion paper is preferably about 80 g / m 2 .
【００１１】本発明２において、合成樹脂フィルムとし
ては、例えば、ポリエステルフィルム等が使用される。In the present invention 2, as the synthetic resin film, for example, a polyester film or the like is used.
【００１２】[0012]
【作用】本発明１の成形品の製造方法は、熱可塑性樹脂
板のいずれか一面にクッション紙を介在させ、他面に導
電性繊維を重ねるようにしてプレス成形型内に配設し、
プレス成形を行うことにより、型締め時の圧縮圧力がク
ッション紙により緩和されるために、熱可塑性樹脂板の
クッション紙が介在された一面に、プレス成形型の型面
をクッション紙を介して徐々に空気をクッション紙の表
面に沿って排気した状態にて圧接することができるの
で、熱可塑性樹脂板中に空気を巻き込むことがなく、
又、熱可塑性樹脂板の導電繊維が重ねられた他面に、プ
レス成形型の型面を導電繊維を徐々に圧縮しながら空気
を排気した状態にて圧接することができるので、熱可塑
性樹脂板中に導電繊維が空気を巻き込んだ状態にて埋設
されることがなく、導電繊維層が形成されるともに、気
泡が包含されず、一面が艶消し状態とされ、真空成形用
材料として好適に用いられる導電性を有する成形品を製
造することができる。In the method for producing a molded article of the present invention 1, cushion paper is interposed on any one surface of the thermoplastic resin plate, and conductive fibers are placed on the other surface of the thermoplastic resin plate and disposed in the press mold.
When the press molding is performed, the compression pressure at the time of mold clamping is relieved by the cushion paper.Therefore, the surface of the thermoplastic resin plate on which the cushion paper is interposed gradually moves the mold surface of the press mold through the cushion paper. Since air can be pressed against the cushion paper while being exhausted along the surface of the cushion paper, air is not trapped in the thermoplastic resin plate,
In addition, the other surface of the thermoplastic resin plate on which the conductive fibers are superposed can be pressed against the mold surface of the press molding die while the conductive fibers are gradually compressed while the air is exhausted. The conductive fiber is not embedded in a state of entraining air therein, a conductive fiber layer is formed, bubbles are not included, and one surface is in a matte state, which is suitable for use as a vacuum forming material. It is possible to produce a molded article having the required conductivity.
【００１３】本発明２の成形品の製造方法は、本発明１
のクッション紙とプレス成形型との間に、更に合成樹脂
フィルムを介在させることにより、更にプレス成形型の
型面とクッション紙との間に介在されている合成樹脂フ
ィルムとの間を通じて、クッション紙を透過する空気を
排気しつつプレス成形を行うことができるので、導電繊
維層が形成されるともに、より一層気泡が包含されず、
一面が艶消し状態とされ、真空成形用材料として好適に
用いられる導電性を有する成形品を製造することができ
る。The method for producing a molded article of the present invention 2 is the same as that of the present invention 1.
By further interposing a synthetic resin film between the cushion paper and the press mold, the cushion paper is further passed through between the mold surface of the press mold and the synthetic resin film interposed between the cushion paper. Since it is possible to perform press molding while exhausting the air that permeates through, the conductive fiber layer is formed, and further bubbles are not included,
It is possible to manufacture a molded product having a conductive surface, one surface of which has a matte state and which is suitable for use as a vacuum molding material.
【００１４】[0014]
【実施例】以下、本発明を実施例により図面を参照して
説明する。図１は、本発明１の成形品の製造方法の一例
の工程を説明する断面図である。１はプレス成形型であ
って、上型１１と下型１２とからなる。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the accompanying drawings. FIG. 1 is a cross-sectional view illustrating steps of an example of a method for manufacturing a molded product of the first invention. Reference numeral 1 denotes a press mold, which includes an upper mold 11 and a lower mold 12.
【００１５】開型状態の下型１２の型面上に、厚みが
０．５ｍｍ、坪量が８０ｇ／ｍ2 のクラフト紙からなる
クッション紙２を置いた。[0015] onto the mold surface of the lower mold 12 of the open type state, thickness of 0.5 mm, it was placed a cushion sheet 2 basis weight consists of kraft paper 80 g / m 2.
【００１６】クッション紙２上に、縦×横×厚み＝１０
２５ｍｍ×２０４０ｍｍ×２ｍｍの市販の硬質ポリ塩化
ビニルからなる熱可塑性樹脂板３を重ね、その上に、導
電性繊維４を重ねた。On the cushion paper 2, length × width × thickness = 10
A thermoplastic resin plate 3 made of commercially available hard polyvinyl chloride having a size of 25 mm × 2040 mm × 2 mm was stacked, and a conductive fiber 4 was stacked thereon.
【００１７】プレス成形型１を閉型し、温度１４０℃、
圧力２５ｋｇ／ｃｍ2 の条件にて熱プレス成形を行っ
た。この際、熱可塑性樹脂板３のクッション紙２が介在
された一面に、プレス成形型１の下型１２型面をクッシ
ョン紙２を介して徐々に空気をクッション紙２の表面に
沿って排気した状態にて圧接することができ、熱可塑性
樹脂板３中に空気を巻き込むことがなかった。又、熱可
塑性樹脂板３の導電繊維４を重ねた他面に、プレス成形
型１の上型１１の型面を導電繊維４を徐々に圧縮しなが
ら空気を排気した状態にて圧接することができ、熱可塑
性樹脂板３中に導電繊維４を空気を巻き込んだ状態にて
埋設することがなかった。The press mold 1 is closed and the temperature is 140 ° C.
Hot press molding was carried out under the condition of a pressure of 25 kg / cm 2 . At this time, air was gradually exhausted along the surface of the cushion paper 2 through the cushion paper 2 on the lower die 12 surface of the press mold 1 on the surface of the thermoplastic resin plate 3 on which the cushion paper 2 was interposed. It was possible to press-contact in the state, and air was not entrained in the thermoplastic resin plate 3. In addition, the other surface of the thermoplastic resin plate 3 on which the conductive fibers 4 are overlapped may be pressed against the mold surface of the upper mold 11 of the press mold 1 while the conductive fibers 4 are gradually compressed and air is exhausted. However, the conductive fiber 4 was not embedded in the thermoplastic resin plate 3 in a state where air was entrained therein.
【００１８】その後、開型し、積層体を取り出し、クッ
ション紙を剥離した。これにより、図２に示す如く、導
電繊維層５１が形成されるともに、気泡が包含されず、
一面が艶消し状態とされ、真空成形用材料として好適に
用いられる導電性を有する成形品５を得ることができ
た。Then, the mold was opened, the laminate was taken out, and the cushion paper was peeled off. As a result, as shown in FIG. 2, the conductive fiber layer 51 is formed and air bubbles are not included,
It was possible to obtain a molded product 5 having a conductive surface, one surface of which was matt, and which was suitable for use as a vacuum molding material.
【００１９】図３は、本発明２の成形品の製造方法の一
例の工程を説明する断面図である。図１の例と異なる点
は、プレス成形型１の下型１２の型面の上にポリエステ
ルフィルムからなる合成樹脂フィルム６を敷き、その上
にクッション紙２を置いた点である。その他の点は図１
を参照して説明した方法と同様にしてプレス成形を行っ
た。FIG. 3 is a cross-sectional view for explaining the steps of an example of the method for producing a molded product of the present invention 2. The difference from the example of FIG. 1 is that a synthetic resin film 6 made of a polyester film is laid on the mold surface of the lower mold 12 of the press mold 1, and the cushion paper 2 is placed thereon. Other points are shown in Figure 1.
The press molding was performed in the same manner as the method described with reference to FIG.
【００２０】この際、更にプレス成形型１の下型１２の
型面とクッション紙２との間に介在されている合成樹脂
フィルム６との間から、クッション紙を透過する空気を
排気しつつプレス成形を行うことができた。At this time, the air is passed through the cushion paper while being exhausted from between the synthetic resin film 6 interposed between the mold surface of the lower mold 12 of the press mold 1 and the cushion paper 2. Molding could be done.
【００２１】その後、開型し、積層体を取り出し、クッ
ション紙２を剥離した。これにより、導電繊維層が形成
されるともに、より一層気泡が包含されず、一面が艶消
し状態とされ、真空成形用材料として好適に用いられる
導電性を有する成形品を得ることができた。Thereafter, the mold was opened, the laminate was taken out, and the cushion paper 2 was peeled off. As a result, a conductive fiber layer was formed, air bubbles were not further included, and one surface was in a matte state, and it was possible to obtain a molded article having conductivity, which is suitable for use as a vacuum molding material.
【００２２】[0022]
【発明の効果】本発明１の成形品の製造方法は、上記の
如き構成とされているので、気泡が包含されず、一面が
艶消し状態とされ、真空成形用材料として好適に用いら
れる導電性を有する成形品を製造することができる。EFFECTS OF THE INVENTION Since the method for producing a molded article of the present invention 1 has the above-mentioned constitution, it does not contain bubbles and has a matte state on one side, which is suitable for use as a vacuum molding material. It is possible to produce a molded article having properties.
【００２３】本発明２の成形品の製造方法は、上記の如
き構成とされているので、より一層気泡が包含されず、
一面が艶消し状態とされ、真空成形用材料として好適に
用いられる導電性を有する成形品を製造することができ
る。Since the method for producing a molded article according to the second aspect of the present invention is configured as described above, air bubbles are not further included,
It is possible to manufacture a molded product having a conductive surface, one surface of which has a matte state and which is suitable for use as a vacuum molding material.
【図１】本発明１の成形品の製造方法の一例の工程を説
明する断面図である。FIG. 1 is a cross-sectional view illustrating a step of an example of a method for manufacturing a molded product of the first invention.
【図２】本発明１により得られた成形品の一例を示す断
面図である。FIG. 2 is a cross-sectional view showing an example of a molded product obtained by the present invention 1.
【図３】本発明２の成形品の製造方法の一例の工程を説
明する断面図である。FIG. 3 is a cross-sectional view illustrating a step of an example of a method for manufacturing a molded product of the second invention.
【図４】従来の方法の一例を説明する断面図である。FIG. 4 is a cross-sectional view illustrating an example of a conventional method.
１ プレス成形型 ２ クッション紙 ３ 熱可塑性樹脂板 ４ 導電繊維 ６ 合成樹脂フィルム 1 Press Mold 2 Cushion Paper 3 Thermoplastic Resin Plate 4 Conductive Fiber 6 Synthetic Resin Film
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｂ３２Ｂ 31/20 9349−4Ｆ // Ｂ２９Ｋ 105:20 Ｂ２９Ｌ 9:00 ─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 6 Identification code Internal reference number FI technical display location B32B 31/20 9349-4F // B29K 105: 20 B29L 9:00
Claims (2)
ョン紙を介在させ、他面に導電性繊維を重ねるようにし
てプレス成形型内に配設し、プレス成形を行うことを特
徴とする成形品の製造方法。1. A molding characterized by interposing cushion paper on one surface of a thermoplastic resin plate and disposing conductive fibers on the other surface of the thermoplastic resin plate in a press mold so as to perform press molding. Method of manufacturing goods.
との間に、更に合成樹脂フィルムを介在させることを特
徴とする成形品の製造方法。2. A method for producing a molded article, further comprising a synthetic resin film interposed between the cushion paper and the press mold of claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6294697A JPH08156084A (en) | 1994-11-29 | 1994-11-29 | Manufacture of molded form |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6294697A JPH08156084A (en) | 1994-11-29 | 1994-11-29 | Manufacture of molded form |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH08156084A true JPH08156084A (en) | 1996-06-18 |
Family
ID=17811138
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6294697A Pending JPH08156084A (en) | 1994-11-29 | 1994-11-29 | Manufacture of molded form |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH08156084A (en) |
-
1994
- 1994-11-29 JP JP6294697A patent/JPH08156084A/en active Pending
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