JPS5821429A - Surface treating method of molded fluororesin article - Google Patents
Surface treating method of molded fluororesin articleInfo
- Publication number
- JPS5821429A JPS5821429A JP11868281A JP11868281A JPS5821429A JP S5821429 A JPS5821429 A JP S5821429A JP 11868281 A JP11868281 A JP 11868281A JP 11868281 A JP11868281 A JP 11868281A JP S5821429 A JPS5821429 A JP S5821429A
- Authority
- JP
- Japan
- Prior art keywords
- fluororesin
- powder
- inorganic compound
- usually
- cable
- 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
Landscapes
- Coating Of Shaped Articles Made Of Macromolecular Substances (AREA)
Abstract
Description
【発明の詳細な説明】
本発明はヌレ性の悪いふっ素樹脂成形体の表面処理方法
の改良に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in a method for surface treatment of fluororesin molded articles having poor wettability.
一般にふっ素樹脂成形体例えばふっ素樹脂による絶縁層
又は保護層を投砂た電線又はケーブルに着色又は印刷等
の塗装加工を行わんとする場合、ふっ素樹脂はヌレ性が
極めて低い通常ｄｙｓｅ数３５数丁５以下ため非接着性
を有し、そのま＼では塗装加工を行うことが出来ないも
のであり九。Generally, when a fluororesin molded product, such as an electric wire or cable coated with a fluororesin insulating layer or protective layer, is to be painted, colored or printed, fluororesin has extremely low wettability and is usually coated with 35 dyes. 5 or less, it has non-adhesive properties and cannot be painted as is.9.
従ってふっ素樹脂のヌレ性を向上せしめんとして、その
表面にエツチングを施して凹凸部を形成するために次の
如き方法にて処理を行っていたものである。Therefore, in order to improve the wettability of the fluororesin, the following method has been used to etch the surface of the fluororesin to form irregularities.
（１）化学処理法
ふっ素樹脂を金属ナトリウムとアンモニアとの混合物、
金属ナトリウムとナフタレン及びテトラヒドロ７ランと
の混合物に浸漬して処理する方法。(1) Chemical treatment method Fluororesin is mixed with metallic sodium and ammonia,
A method of treatment by immersing in a mixture of metallic sodium, naphthalene, and tetrahydro7rane.
（２） 電気処理法
ふっ素樹脂表面に高周波コロナ放電をあて、エツチング
処理する方法。(2) Electrical treatment method A method in which high-frequency corona discharge is applied to the fluororesin surface to perform etching treatment.
然しなから上記（１）の方法は処理液中に水が入ると発
火をおこすため、水の浸入を遮断しなゆればならず、窒
素ガス又はナフサ等で置網しているもので１り夛、作業
に危険性を伴うものである。However, in the method (1) above, if water enters the treatment liquid, it will cause a fire, so it is necessary to shut off water from entering, and it is not possible to do so by using a net with nitrogen gas or naphtha. However, the work is dangerous.
又（２）の方法による場合には設備の丸めに莫大な費用
を要すると共に感電するおそれがある。Furthermore, in the case of method (2), a huge amount of cost is required for rounding the equipment, and there is a risk of electric shock.
又ヌレ性の向上においてそれ嫌ど顕著の効果を発揮しな
いものである。Moreover, it does not exhibit any significant effect in improving wettability.
更に上記（１）及び（２）の方法は共にエツチングのｐ
面はふっ素樹脂のみＫよる凹凸部である丸め手、油等の
接触によシ磨耗するとか或紘紫外線によＪ） ｄｙｎｅ
数かもとの状態にもどるものであつ九。Furthermore, both of the above methods (1) and (2)
The surface is made of fluororesin only, and is rounded with uneven parts, which can be abraded by contact with oil, etc., or by exposure to ultraviolet rays.
The number also returns to its original state.
而しこれらの方法を電線の被覆工程に適用する場合、導
体にふっ素樹脂テープを巻付けた後約３６０℃程度に焼
付けて該テープを溶融せしめて一体化（シーリングとい
う）した後、前記の如き方法により表面処理を行ってい
たものである。又導体にふっ素樹脂を押出し被覆した後
、表面処理を行う場合には、高温のふっ素樹脂被覆層を
一旦水にて常温まで冷却し、改めて表面処理を行ってい
たものであった。従って何れ本２工程を必要としタンデ
ムにて行うことが出来ないものであった。However, when these methods are applied to the process of covering electric wires, after wrapping a fluororesin tape around the conductor and baking it at about 360°C to melt the tape and integrate it (called sealing), the above-mentioned process is performed. Surface treatment was performed using a method. In addition, when performing surface treatment after extrusion coating a fluororesin on a conductor, the high temperature fluororesin coating layer was once cooled to room temperature with water, and then the surface treatment was performed again. Therefore, two steps are required and cannot be carried out in tandem.
本発明はふっ素樹脂の表面を簡単な方法により、しかも
作業性容具にして塗料等のヌレ性の著しい向上をなし得
る処理方法を見出したものである。即ち本発明方法はふ
っ素樹脂成形体の横比合物粉粒を塗布し、これを加熱し
て＃粉末を成形体上に融着せしめることを特徴とするも
のである。The present invention has discovered a method of treating the surface of a fluororesin by a simple method, which can also be used as a workable container and significantly improve the wettability of paints, etc. That is, the method of the present invention is characterized in that the lateral ratio compound powder particles of a fluororesin molded body are applied and heated to fuse the # powder onto the molded body.
本発明における無機化合物としては特に限定するもので
はなく、ふっ素樹脂を加熱して溶融する温度例えば３５
０〜４００℃において、諌樹脂と反応することなく且つ
取扱い容易にしてふっ素樹脂の表面に融着するものであ
ればよい。The inorganic compound in the present invention is not particularly limited, and the temperature at which the fluororesin is heated and melted is, for example, 35
Any material may be used as long as it does not react with the resin at 0 to 400°C, is easy to handle, and can be fused to the surface of the fluororesin.
そのためには無機化合物の粒径は做細なものがよく通常
０．５〜２．０μ程度のものを使用する。For this purpose, the particle size of the inorganic compound is preferably small and usually about 0.5 to 2.0 microns.
又粉末融着層の厚さは通常１〜５μ程度が好ましい４の
である。In addition, the thickness of the powder fusion layer is preferably about 1 to 5 .mu.m.
本発明方法の実施例を図面によル詳ａＫ説明する。Embodiments of the method of the present invention will be explained in detail with reference to the drawings.
１！膣例（１）
第１図に示す如く撚層上に厚さ１００Ａのポリイミドテ
ープの表面に厚さ２０声ふっ素樹脂をコーティングした
ものを該ふっ素樹脂が外側になるようにして数枚ギヤツ
ブ寺を行ったケーブル１をサプライ２から引出し、これ
を予め平均粒Ｖ＾の炭酸カルシウムを入れ九粉槽Ｊ内を
通過せしめた後、エアーフィルター４を径て約３８０℃
の焼成炉５に導入せしめて３分間焼付はシーリングと表
面処理とを同時工程即ちタンディにて行った後引続き焼
成炉５の出口において上記と同様の粉槽ｌを設けて溶融
状態のふっ素樹脂の表面に炭酸カルシウムの微粉末を焼
付けを行い、エアーフィルター７にて余分の炭酸カルシ
ウム粉をバフフィルタ１にて除去し、引取機ｐを介して
ティクアップ１０に巻付妙本発明の方法によるケーブル
をえ九。1! Vagina Example (1) As shown in Figure 1, several pieces of polyimide tape with a thickness of 100A coated with 20-tone fluororesin on the surface of the twisted layer were made with the fluororesin on the outside. The cable 1 that has been prepared is pulled out from the supply 2, and after passing through a powder tank J containing calcium carbonate of average particle size V^, it is heated to approximately 380°C through an air filter 4.
The powder was introduced into the firing furnace 5 and baked for 3 minutes. After performing sealing and surface treatment at the same time, i.e., in tandy, a powder tank l similar to the above was provided at the outlet of the firing furnace 5 to bake the molten fluororesin. A fine powder of calcium carbonate is baked on the surface, excess calcium carbonate powder is removed by an air filter 7 and a buff filter 1 is used, and the cable is wrapped around a pick-up 10 via a take-up machine p. E9.
なお本発明方法によるケーブルと比較するために上記実
施例において粉槽を使用することなく、その他はすべて
実施例と同様にして比較例方法によるケーブルを得た。In order to compare with the cable produced by the method of the present invention, a cable produced by the method of the comparative example was obtained in the same manner as in the embodiment except that the powder bath was not used in the above embodiment.
而して本発明方法によるケーブルと比較例方法によるケ
ーブルについてそのｄｙｎｅ数（ヌレ性）を測定し且印
刷状態を示すと次の通シである。・ｄｙｎｅ数 印
刷塗布
本発明品 ４８ 容易に印刷出来る比較例品
２８ 印刷することが出来ない実施例（２）
第２図に示す如く撚線をサプライ２から引出しその外側
に押出機１１にょシふっ素ａｍを被覆したケーブル１を
、予め平均粒径βのクレーを入れた粉檜３内を通過せし
め、溶融状態のふっ素樹脂の表面にクレー粉末を融着し
た後、水槽１２１１Ｃ導入して冷却せしめた。この状態
において直ちにインク印刷器１３にょシその表面にクア
ツベに巻取９本発明方法によるケーブルを得た。The number of dynes (wetness) of the cables produced by the method of the present invention and the cables produced by the method of the comparative example were measured, and the printing conditions are shown as follows.・Number of dyne Printing coating Invention product 48 Comparative example product that can be easily printed
28 Example in which printing is not possible (2) As shown in Fig. 2, a stranded wire is pulled out from a supply 2, and a cable 1 coated with fluorine am is coated with an extruder 11 on the outside of the stranded wire. After the clay powder was passed through the powdered hinoki 3 and fused to the surface of the molten fluororesin, it was introduced into a water tank 1211C and cooled. In this state, a cable was immediately wound on the surface of the ink printer 13 to obtain a cable according to the method of the present invention.
なお本発明により処理したケーブル（Ｄ ｄｙｎ・数を
測定した結果は４５を示し、無処理のケーブルに比して
著しく ｄｙｎｅ数が向上していえことを示し丸。In addition, the result of measuring the D dyn number of the cable treated according to the present invention was 45, indicating that the dyn number was significantly improved compared to the untreated cable.
このように本発明方法は導体上にふっ素樹脂の押出１糧
と連続工程即ちタンディにて行りことが出来るから生産
性が著しく向上せしめることが出来る。％に導体上にふ
っ素樹脂を押出してえたｙケーブル又はｖｃ’ｒ （ビ
ニルキャブタイヤケーブル）の如く無介在にてＰｖＣジ
、スを被覆する場合、従来シリコン塗布、タルク＠塗布
を行って密着するのを防止しているものであるが本発明
方法においてはタルク類を表面処理剤として使用するた
め改めて密着防止剤を使用する必要がない。As described above, since the method of the present invention can be carried out in a continuous process, that is, in tandem, by extruding the fluororesin onto the conductor, productivity can be significantly improved. When covering PvC cables without any intervention, such as Y cables or VC'R (vinyl cabtyre cables), which are made by extruding fluororesin onto a conductor, conventional silicone coating or talc coating is used to ensure adhesion. However, in the method of the present invention, since talc is used as a surface treatment agent, there is no need to use an anti-adhesion agent.
以上詳述した如く本発明方法にはふっ素樹脂をシーリン
グ又は押出によシ被覆する工程とタンデムにて行うこと
ができるため、加工費が着しく低減され且つ生産性が向
上し、しかも安心して作業を行うことが出来うる等顕著
な効果を有する。As detailed above, since the method of the present invention can be carried out in tandem with the step of coating with fluororesin by sealing or extrusion, processing costs are significantly reduced, productivity is improved, and work can be carried out with peace of mind. It has remarkable effects such as being able to perform
第１図は本発明方法をふっ素樹脂のシーリングとタンデ
ム化したラインを示す概略説明図。
第２図は本発明方法をふっ素樹脂の押出工程とタンデム
化したラインを示す概略説明図である。
１・・・・ケーブル、２・・・ナラ２イ、Ｊ・・・粉櫂
、４・・・フィルター、５・・・焼成炉、６・・・粉檜
、１・・・フィルター、８・・・バブフィルタ、９・・
・引堆機、１０・・・ティクアップ、１ノ・・・押出機
、１２・パ水檜、１３・・・印刷器。FIG. 1 is a schematic explanatory diagram showing a line in which the method of the present invention is tandemly used with fluororesin sealing. FIG. 2 is a schematic explanatory diagram showing a tandem line in which the method of the present invention is combined with a fluororesin extrusion step. 1...Cable, 2...Nara 2i, J...Powder paddle, 4...Filter, 5...Kiln, 6...Powder cypress, 1...Filter, 8...・・Bub filter, 9・・
- Compounding machine, 10...Tick-up, 1--Extruder, 12-Pazu Hinoki, 13...Printing machine.
Claims (1)
化鉛等の無機化合物粉末を塗布し、これを加熱して、鉄
粉末を成形体上に融着せしめることを特徴とするふっ素
樹脂成形体の表面処理方法。A surface of a fluororesin molded article characterized in that an inorganic compound powder such as calcium carbonate, clay, lead oxide, etc. is applied to the surface of the fluororesin molded article, and this is heated to fuse iron powder onto the molded article. Processing method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11868281A JPS5821429A (en) | 1981-07-29 | 1981-07-29 | Surface treating method of molded fluororesin article |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11868281A JPS5821429A (en) | 1981-07-29 | 1981-07-29 | Surface treating method of molded fluororesin article |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5821429A true JPS5821429A (en) | 1983-02-08 |
Family
ID=14742585
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11868281A Pending JPS5821429A (en) | 1981-07-29 | 1981-07-29 | Surface treating method of molded fluororesin article |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5821429A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59145219A (en) * | 1983-02-04 | 1984-08-20 | Nippon Pillar Packing Co Ltd | Surface treatment of fluorine-containing high-molecular compound |
| JP2014046255A (en) * | 2012-08-30 | 2014-03-17 | Taiyo Kogyo Corp | Joint method of photocatalytic film |
| JP2019089068A (en) * | 2019-01-07 | 2019-06-13 | 太陽工業株式会社 | Method for bonding photocatalytic film |
-
1981
- 1981-07-29 JP JP11868281A patent/JPS5821429A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59145219A (en) * | 1983-02-04 | 1984-08-20 | Nippon Pillar Packing Co Ltd | Surface treatment of fluorine-containing high-molecular compound |
| JPS6359414B2 (en) * | 1983-02-04 | 1988-11-18 | ||
| JP2014046255A (en) * | 2012-08-30 | 2014-03-17 | Taiyo Kogyo Corp | Joint method of photocatalytic film |
| JP2019089068A (en) * | 2019-01-07 | 2019-06-13 | 太陽工業株式会社 | Method for bonding photocatalytic film |
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