JP3116783B2 - Method for producing coated injection molded article - Google Patents
Method for producing coated injection molded articleInfo
- Publication number
- JP3116783B2 JP3116783B2 JP24443395A JP24443395A JP3116783B2 JP 3116783 B2 JP3116783 B2 JP 3116783B2 JP 24443395 A JP24443395 A JP 24443395A JP 24443395 A JP24443395 A JP 24443395A JP 3116783 B2 JP3116783 B2 JP 3116783B2
- Authority
- JP
- Japan
- Prior art keywords
- film
- mold
- injection
- molded article
- coating film
- 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 - Fee Related
Links
Landscapes
- Moulds For Moulding Plastics Or The Like (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、自動車の内外装に
使用される樹脂部品、建築材料、電気機器、サインボー
ド等に用いられる成形部品等の表面が被覆された射出成
形品 の製造方法に関するものである。BACKGROUND OF THE INVENTION The present invention is a resin component used in the interior and exterior of automobiles, building materials, electric appliances, a method of manufacturing an injection molded article the surface of molded parts such as coated for use in signboards, etc. Things.
【０００２】[0002]
【従来の技術】表面が被覆された射出成形品の製造方法
としては、例えば特開昭５４−３３５６１号公報や特開
昭５６−１２６１４２号公報において提案されているよ
うに、予備成形された被覆用フィルムを金型内に挿入
し、型閉めした上で金型のキャビティ内に溶融樹脂を射
出し、該被覆用フィルムを成形品表面に固着又は溶着し
た表面被覆された射出成形品の製造方法が知られてい
る。2. Description of the Related Art As a method for producing an injection-molded article having a coated surface, for example, as disclosed in JP-A-54-33561 and JP-A-56-126142, a preformed coating is used. A method for producing a surface-coated injection molded article in which a film for molding is inserted into a mold, the mold is closed, molten resin is injected into a cavity of the mold, and the coating film is fixed or welded to the surface of the molded article. It has been known.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、上記の
方法による成形品においては、予備成形された被覆用フ
ィルムが金型の雌型の凹部の面積と同じか、それ以下の
大きさであるため、成形時に、金型の雄型と雌型との境
界の隙間部まで上記フィルムで覆うことはできなかっ
た。However, in the molded article obtained by the above method, the preformed coating film has a size equal to or less than the area of the concave portion of the female mold of the mold. At the time of molding, it was not possible to cover the gap between the male and female molds of the mold with the film.
【０００４】そのため、射出成形後の成形品の表面の上
記隙間部に相当する箇所に樹脂バリが発生したり、雄型
と雌型との境界部の段差が成形品の表面に顕著に現れ
て、外観の劣るものしか得られなかったり、或は成形品
の表面の端縁部にまで被覆が及ばず、被覆が不完全な成
形品しか得られない、という問題があった。本発明は、
上述のような問題点を解決し、樹脂バリや段差がなく、
表面の端縁部まで被覆された射出成形品を得ることを目
的としている。[0004] Therefore, resin burrs are generated at portions corresponding to the gaps on the surface of the molded product after the injection molding, and a step at the boundary between the male and female dies is remarkably shown on the surface of the molded product. There has been the problem that only poor appearance can be obtained, or the coating does not reach the edge of the surface of the molded product, and only a molded product with incomplete coating can be obtained. The present invention
Solving the above-mentioned problems, there is no resin burr or step,
It is intended to obtain an injection-molded article coated up to the edge of the surface.
【０００５】[0005]
【課題を解決するための手段】本発明の要旨は、被覆用
フィルムを金型内に挿入し、次いで該金型を型閉めし、
キャビティ内に溶融樹脂を射出して、該被覆用フィルム
により被覆された射出成形品を製造するに際し、被覆用
フィルムとして下記（ａ）〜（ｄ）の条件を満たすフィ
ルムを用いることを特徴とする被覆用フィルムにより端
縁部まで被覆された射出成形品の製造方法、 SUMMARY OF THE INVENTION The gist of the present invention is to insert a coating film into a mold, and then close the mold,
Injecting the molten resin into the cavity, the coating film
When manufacturing injection molded articles coated with
A film satisfying the following conditions (a) to (d)
Using a coating film characterized by using
A method for producing an injection molded article coated up to the edge,
【０００６】（ａ）厚みが０．１〜１０ｍｍであり、 （ｂ）得られる射出成形品の端縁部まで被覆するのに十
分な面積を有し、かつ （ｃ）全周縁部にわたって、深さがフィルム厚みの３０
％から２００％、高さ がフィルム厚みの２００％から７
００％であるアンダーカットを設ける ことにより、金型
を型閉めした時にキャビティ内に納まり得る、 （ｄ）予備成形されたフィルム (A) The thickness is 0.1 to 10 mm, and (b) it is sufficient to cover the edge of the obtained injection molded product.
(C) over the entire periphery, the depth is 30 times the film thickness.
% To 200%, height is 200% to 7% of film thickness
By providing an undercut that is 00%, the mold
(D) Pre-formed film that can fit in cavity when mold is closed
【０００７】上記被覆用フィルムが真空成形により製造
されたものである被覆された射出成形品の製造方法、上
記の被覆用フィルムが、雄型の凸部基部近傍に溝状の切
欠き部分を設けることにより、成形品にアンダーカット
を形成し得るようにした真空成形金型を用いて製造され
たものである射出成形品の製造方法、及び上記被覆用フ
ィルムが、塩化ビニル樹脂からなる基材層及び着色層、
アクリル樹脂からなる透明層を有する積層フィルムであ
る射出成形品の製造方法、に存する。[0007] The method of manufacturing the coating film is those produced by vacuum forming coated injection moldings, upper
The coating film described above is manufactured using a vacuum molding die that is capable of forming an undercut in a molded product by providing a groove-shaped notch near the base of the male convex portion.
A method for producing an injection-molded article,
Film is a base layer and a colored layer made of a vinyl chloride resin,
A laminated film having a transparent layer made of acrylic resin
Manufacturing method of the injection molded article .
【０００８】[0008]
【発明の実施の形態】本発明の製造方法により製造され
た射出成形品は、その端縁部までフィルムで被覆され
た、外観が良好でかつバリ取り等の仕上げ工程が不要で
ある。このような成形品は、樹脂射出孔を有する凸部の
周囲に溝部が形成された雄型と、凹部が形成された雌型
とからなる射出成形金型や、樹脂射出孔を有する凸部の
形成された雄型と、凹部が形成された雌型とからなる射
出成形金型等、種々の射出成形金型を用いて、これらの
金型内に被覆用フィルムを挿入した後に、型閉めし、キ
ャビティ内に溶融樹脂を射出し、該樹脂を冷却固化させ
て製造することができる。 Manufactured by the manufacturing method of the embodiment of the present invention
The injection-molded product has good appearance and is free of a finishing step such as deburring, in which the edge is covered with a film. Such a molded product is an injection mold including a male die having a groove formed around a convex portion having a resin injection hole and a female die having a concave portion, and a convex portion having a resin injection hole. Using various injection molds such as an injection mold composed of a formed male mold and a female mold with a recess formed therein, after inserting the coating film into these molds, the molds are closed. It can be manufactured by injecting a molten resin into the cavity and cooling and solidifying the resin.
【０００９】本発明の射出成形品の製造方法において用
いる 被覆用フィルム は、下記（ａ）〜（ｄ）の条件を
満たすフィルムである。 （ａ）厚みが０．１〜１０ｍｍであり、 （ｂ）得られる射出成形品の端縁部まで被覆するのに十
分な面積を有し、かつ （ｃ）全周縁部にわたって、深さがフィルム厚みの３０
％から２００％好まし くは５０％から１５０％、高さ
（図９中に示す）がフィルム厚みの２０ ０％から７００
％好ましくは３００％から６００％であるアンダーカッ
トを設けることにより、金型を型締めした時にキャビテ
ィ内に納まり得 る、 （ｄ）予備成形されたフィルム 被覆用フィルム のアンダーカットの大きさは、被覆すべ
き部位の面積、即ち被覆用フィルムの面積に応じて調整
するのが好ましい。 [0009] the covering for Phil beam that have use <br/> method of manufacturing an injection molded article of the present invention, the following conditions (a) ~ (d)
Filling film. (A) 0.1 to 10 mm in thickness; (b) sufficient to cover the edge of the resulting injection molded article
(C) over the entire periphery, the depth is 30 times the film thickness.
% 200% preferably Ku 150% 50%, the height
(Shown in FIG. 9) is 200 % to 700% of the film thickness.
%, Preferably 300% to 600%
By installing the cavities, the cavities can be
Ru resulting fit within I, (d) the size of the preformed film undercutting of the coating film, the area of the site to be coated, i.e. it has the preferred to adjust according to the area of the coating film.
【００１０】上記のアンダーカットを有する被覆用フィ
ルムを用いることにより端縁部まで被覆が可能となるこ
とは、以下のような金型内部での溶融樹脂の流動挙動に
より説明できるものと考えられる。即ち、溶融樹脂は、
金型内を流動するとき、金型の雄型と雌型とでできる空
間（キャビティ）内においては、その中心部で溶融樹脂
の流速が最も高く、雄型及び雌型表面に近いほど、溶融
樹脂の流速は遅くなる。これは、金型表面を溶融樹脂が
流動する際の摩擦抵抗と、溶融樹脂が金型表面に近い程
速く冷却されることによると考えられる。[0010] It is considered that the fact that the coating film having the above-mentioned undercut can be coated up to the edge portion can be explained by the flow behavior of the molten resin inside the mold as described below. That is, the molten resin is
When flowing in the mold, in the space (cavity) formed by the male and female molds of the mold, the flow rate of the molten resin is the highest at the center, and the closer to the surface of the male and female molds, The flow rate of the resin decreases. This is considered to be due to the frictional resistance when the molten resin flows on the mold surface, and the fact that the molten resin is cooled faster as it approaches the mold surface.
【００１１】また、キャビティ内に被覆用フィルムを予
め挿入した状態で溶融樹脂を射出する方法を用いる成形
法においては、挿入されたフィルムが断熱材として働
き、溶融樹脂の金型による冷却が妨げられるので、溶融
樹脂は金型面よりもフィルム面の方が速く流れることに
なる。（図１０） 従って、フィルムのある側の方がない側（即ち金型面）
よりも先に樹脂が充填されることになるので、フィルム
面の内側中心部から外側（端縁部）へ向かって溶融樹脂
が流れることとなる。この時、フィルムの端縁部付近の
アンダーカットが、溶融樹脂によって押し広げられて、
金型面に沿うようになる。（図１１）In a molding method using a method of injecting a molten resin in a state in which a coating film is inserted in a cavity in advance, the inserted film functions as a heat insulating material, thereby preventing cooling of the molten resin by a mold. Therefore, the molten resin flows faster on the film surface than on the mold surface. (FIG. 10) Therefore, the side with the film is not the side (ie, the mold surface)
Since the resin is charged earlier than the resin, the molten resin flows from the inner central portion of the film surface to the outer side (edge portion). At this time, the undercut near the edge of the film is expanded by the molten resin,
It follows the mold surface. (FIG. 11)
【００１２】本発明においては、上述の溶融樹脂の流速
の差により、このアンダーカット部は、フィルム面の中
心部から端縁部へ向けて延ばされるので、フィルムにシ
ワが入ったり、溶融樹脂がフィルムと金型との隙間に入
りこむことなく、成形品の端縁部まで十分被覆された良
好な成形品を得ることができる。（図１２） 従来のように、アンダーカットを有しておらず、従っ
て、成形品の端縁部まで被覆するには不十分な面積しか
ないフィルムを金型内に挿入して射出成形を行った場合
は、溶融樹脂の流動は上述と同様であるが、フィルムが
金型面に沿って延びることがないので、成形品の端縁部
まで完全には被覆できない。In the present invention, the undercut portion is extended from the center of the film surface to the edge portion due to the difference in the flow rate of the molten resin described above. It is possible to obtain a good molded product sufficiently covered up to the edge portion of the molded product without entering the gap between the film and the mold. (FIG. 12) A film which does not have an undercut as in the prior art and therefore has an area which is not enough to cover the edge of the molded product is inserted into a mold and injection molding is performed. In this case, the flow of the molten resin is the same as described above, but the film does not extend along the mold surface, so that the edge of the molded product cannot be completely covered.
【００１３】一方、金型内に挿入するフィルムを成形品
の端縁部まで被覆するのに十分な面積はあるが、アンダ
ーカットを持たず、従って金型を型閉めした時のキャビ
ティ内に納まり切らないようなものを用いた場合は、型
閉め時に該フィルムにシワが入り、結果的に成形品表面
にシワが残ったり、或は端縁部の被覆が不完全となっ
て、成形品の周囲にバリ状のフィルムが残ってしまった
りする。On the other hand, although there is enough area to cover the edge of the molded article with the film to be inserted into the mold, it does not have an undercut and therefore fits in the cavity when the mold is closed. When a material that does not cut is used, wrinkles enter the film when the mold is closed, resulting in wrinkles remaining on the surface of the molded product or incomplete coating of the edges, resulting in a molded product. A burr-like film may be left around.
【００１４】本発明に用いる周縁部にアンダーカットを
有するフィルムは、真空成形や圧空成形によって製造す
ることができるが、真空成形法を用いるのが、設備が小
型で済み、またアンダーカットの形成も容易であり好ま
しい。また、この真空成形のための金型としては、アン
ダーカットの形状に合わせて、金型の凸部の基部近傍に
溝状の切り欠き部分を設けた金型を用いることにより、
所望の形状、大きさのアンダーカットを有する予備成形
フィルムを作成することができる。The film having an undercut at the peripheral portion used in the present invention can be manufactured by vacuum forming or pressure forming. However, the vacuum forming method requires a small facility and can form the undercut. Easy and preferred. In addition, as a mold for this vacuum forming, by using a mold having a groove-shaped notch near the base of the convex portion of the mold in accordance with the shape of the undercut,
A preformed film having an undercut of a desired shape and size can be produced.
【００１５】この場合アンダーカットが深いため、成形
後の型離れが困難な場合は、その部分を分割できるよう
な、入れ子型式の金型（割型）を使用すればよい。被覆
用フィルムとしては、目的とする成形品の用途や性能に
応じて選択すれば良いが、例えばポリエステル系フィル
ム、塩化ビニル樹脂フィルム、ポリスチレンフィルム、
ポリオレフィンフィルム等のフィルムや、あるいはこれ
らのフィルムを積層・複合した多層フィルムなどを用い
ることができる。また、成形品に塗装様の装飾性を与え
たい場合は、特に基材フィルム上に着色層、印刷層、透
明層等を積層した多層フィルムが好適である。In this case, if the undercut is deep and it is difficult to separate the mold after molding, a nested mold (split mold) that can divide the part may be used. The coating film may be selected according to the intended use and performance of the molded article, for example, a polyester film, a vinyl chloride resin film, a polystyrene film,
A film such as a polyolefin film, or a multilayer film obtained by laminating and combining these films can be used. In addition, when it is desired to impart a paint-like decorative property to a molded product, a multilayer film in which a colored layer, a printed layer, a transparent layer, and the like are laminated on a base film is particularly suitable.
【００１６】この多層フィルムの基材フィルムとしては
上記の各種のフィルムやポリカーボネートフィルム、ア
クリル樹脂フィルム等のフィルムが使用でき、この基材
フィルム上に上記の着色層、印刷層及び透明層を、コー
ティング法、印刷法、或はフィルムの貼付（ラミネー
ト）等により積層して多層フィルムが形成できる。ま
た、この多層フィルムの各層の接着のためには、樹脂の
種類に応じて、接着剤を用いてもよい。成形品の本体を
構成する樹脂としては、ポリエチレンテレフタレート、
ポリブチレンテレフタレート等のポリエステル樹脂、塩
化ビニル系樹脂、ポリカーボネート樹脂、アクリル系樹
脂、スチレン系樹脂、ポリエチレン、ポリプロピレン等
のポリオレフィン系樹脂等の射出成形可能な樹脂が挙げ
られる。As the base film of the multilayer film, the above-mentioned various films, films such as polycarbonate film and acrylic resin film can be used, and the above-mentioned colored layer, printed layer and transparent layer are coated on this base film. A multilayer film can be formed by laminating by a method, a printing method, or lamination of a film. Further, an adhesive may be used for bonding each layer of the multilayer film according to the type of the resin. As the resin constituting the main body of the molded product, polyethylene terephthalate,
Injection-moldable resins such as polyester resins such as polybutylene terephthalate, vinyl chloride resins, polycarbonate resins, acrylic resins, styrene resins, and polyolefin resins such as polyethylene and polypropylene.
【００１７】[0017]
【実施例】以下、実施例を用いて本発明をより詳細に説
明するが、本発明はその要旨を越えない限り、実施例に
よって限定されるものではない。 ＜実施例１＞被覆用フィルムとして基材層及び着色層が
塩化ビニル樹脂、透明層がアクリル樹脂から構成された
積層フィルムを使用した。このフィルムを図８に示すよ
うな雄型の凸部の基部近傍に溝状の切り欠き部分を設け
た金型を用いて真空成形し、図９に示すような全周縁部
にわたってアンダーカットを有する予備成形フィルムを
作成した。The present invention will be described in more detail with reference to the following Examples, which should not be construed as limiting the scope of the invention. <Example 1> As a coating film, a laminated film in which the substrate layer and the colored layer were composed of a vinyl chloride resin and the transparent layer was composed of an acrylic resin was used. This film is vacuum-formed using a mold having a groove-shaped notch near the base of the male protrusion as shown in FIG. 8, and has an undercut over the entire periphery as shown in FIG. A preformed film was made.
【００１８】図１に示す樹脂射出孔３を有する凸部４の
周囲に、溝部５が形成された雄型１と凹部が形成された
雌型２とからなる射出成形用金型の雄型に、上記の方法
で作成した、得られる射出成形品の端縁部まで被覆する
のに十分な面積を有する被覆用フィルム６を装着した。
次いで雄型と雌型とを型閉めし、キャビティ内に溶融塩
化ビニル樹脂７を射出・充填し、溶融した樹脂の熱によ
り、被覆用フィルムの基材層を樹脂に溶着させた。（図
３）A male mold of an injection mold comprising a male mold 1 having a groove 5 and a female mold 2 having a recess around a convex portion 4 having a resin injection hole 3 shown in FIG. A coating film 6 having an area sufficient to cover the edge portion of the obtained injection-molded article produced by the above method was mounted.
Then, the male mold and the female mold were closed, the molten vinyl chloride resin 7 was injected and filled in the cavity, and the base layer of the coating film was welded to the resin by the heat of the molten resin. (Fig. 3)
【００１９】射出した樹脂の冷却・固化後、金型を開
き、表面に被覆用フィルムが溶着した成形品を取り出し
た。得られた成形品８は端縁部までフィルムで覆われて
おり、良好な外観を示した。（図５）After the injected resin was cooled and solidified, the mold was opened, and the molded product having the coating film deposited on the surface was taken out. The obtained molded article 8 was covered with the film up to the edge, and showed a good appearance. (Fig. 5)
【００２０】＜実施例２＞上記実施例１の雄型に代え
て、凸部の周囲に溝部を有していない雄型１′を用い、
雌型２′に、実施例１と同様にして作成した、雌型の凹
部の表面積よりも大きく、得られる成形品の端縁部まで
被覆するのに十分な面積を有する被覆用フィルム６を図
２のように装着した。以下、実施例１と同様にして射出
成形を行い、端縁部までフィルムで被覆された、外観の
良好な成形品を得た。（図４）<Embodiment 2> Instead of the male mold of the first embodiment, a male mold 1 'having no groove around the projection is used.
FIG. 3 shows a coating film 6 formed on the female mold 2 'in the same manner as in Example 1 and having a surface area larger than that of the concave portion of the female mold and having a sufficient area to cover the edge of the obtained molded product. It was mounted like 2. Thereafter, injection molding was performed in the same manner as in Example 1 to obtain a molded article having good appearance, which was covered with a film up to the edge. (FIG. 4)
【００２１】＜比較例１＞実施例１と同じ積層フィルム
を用い、雄型の凸部の基部近傍に溝状の切り欠き部分を
有していない金型を用いて、アンダーカットのない、予
備成形フィルムを作成した。実施例１と同じ射出成形用
金型に、上記の方法で作成した、得られる射出成形品の
端縁部まで被覆するのに十分な面積を有する被覆用フィ
ルムを装着した。以下、実施例１と同様にして射出成形
を行ったところ、得られた成形品は、端縁部までの被覆
は一応できていたものの、表面にシワが入った外観が劣
るものであった。<Comparative Example 1> The same laminated film as in Example 1 was used, and a mold having no groove-shaped notch near the base of the male projection was used. A molded film was prepared. The same injection mold as in Example 1 was fitted with a coating film produced by the above method and having a sufficient area to cover the edge of the obtained injection molded product. Thereafter, injection molding was carried out in the same manner as in Example 1. As a result, although the obtained molded product could be coated up to the edge portion, the appearance with wrinkles on the surface was inferior.
【００２２】＜比較例２＞実施例２と同じ射出成形用金
型に、比較例１に記載された方法で作成した、雌型の凹
部の表面積よりも小さい面積の被覆用フィルム６′を装
着し、同様の方法によって射出成形品を作成した。（図
６、図７） 得られた成形品は表面のシワ等はなく良好な外観を示し
たが、端縁部の被覆は不十分であった。<Comparative Example 2> A coating film 6 'having an area smaller than the surface area of the concave portion of the female mold, prepared by the method described in Comparative Example 1, was mounted on the same injection molding die as in Example 2. Then, an injection molded product was prepared in the same manner. (FIGS. 6 and 7) The obtained molded article had good appearance without wrinkles or the like on the surface, but was insufficiently covered at the edges.
【００２３】[0023]
【発明の効果】本発明の製造方法により製造された成形
品は、その端縁部まで十分に被覆されて、表面にもシワ
等がない外観の良好なものである。また、この方法は射
出成形用の金型の形状による制約を受けず、種々の形状
の成形品に適用することができる。The molded article produced by the production method of the present invention has a good appearance in which the edges are sufficiently covered and the surface has no wrinkles or the like. In addition, this method is not limited by the shape of the mold for injection molding, and can be applied to molded products of various shapes.
【図１】本発明によって被覆された射出成形品を製造す
る際の、射出成形の型閉め直前の状態の例を示す断面
図。[1] The present invention in the manufacture of coated injection-molded article by a cross-sectional view showing an example of a mold-closing state immediately before injection molding.
【図２】本発明によって被覆された射出成形品を製造す
る際の、射出成形の型閉め直前の状態の他の例を示す断
面図。[2] The present invention in the manufacture of coated injection-molded article by a cross-sectional view showing another example of the mold-closing state immediately before injection molding.
【図３】本発明によって射出成形品を製造する際の、射
出成形の溶融樹脂の注入が完了した状態の一例を示す断
面図。[3] in the production of injection-molded article according to the present invention, cross-sectional view showing an example of a state in which injection of the molten resin is completed injection molding.
【図４】本発明によって射出成形品を製造する際の、射
出成形の溶融樹脂の注入が完了した状態の他の例を示す
断面図。[Figure 4] in the production of injection-molded article according to the present invention, cross-sectional view showing another example of a state where the injection of the molten resin is completed injection molding.
【図５】本発明によって製造された端縁部まで被覆され
た射出成形品の一例を示す断面図。FIG. 5 is a cross-sectional view showing an example of an injection-molded article coated up to an edge manufactured according to the present invention.
【図６】本発明の範囲外の製造方法によって被覆された
射出成形品を製造する際の、射出成形の型閉め直前の状
態の例を示す断面図。FIG. 6 is a cross-sectional view showing an example of a state immediately before closing a mold in injection molding when manufacturing an injection-molded article coated by a manufacturing method outside the scope of the present invention.
【図７】本発明の範囲外の製造方法によって製造された
射出成形品の例を示す断面図。FIG. 7 is a cross-sectional view showing an example of an injection-molded product manufactured by a manufacturing method outside the scope of the present invention.
【図８】本発明に用いる雄型の凸部の基部近傍に溝状の
切り欠き部分を有する真空成形金型の一例を示す断面
図。FIG. 8 is a cross-sectional view showing an example of a vacuum molding die having a groove-shaped notch near the base of a male convex used in the present invention.
【図９】本発明に用いる周縁部にアンダーカットを有す
る被覆用フィルムの一例を示す説明図。FIG. 9 is an explanatory view showing an example of a coating film having an undercut on a peripheral portion used in the present invention.
【図１０】本発明における端縁部まで被覆された射出成
形品を得るための射出成形の過程を示す模式図。Schematic diagram showing the process of injection molding for obtaining a coated injection-molded article to the edge portion of the invention; FIG.
【図１１】本発明における端縁部まで被覆された射出成
形品を得るための射出成形の過程を示す模式図。Schematic diagram showing the process of injection molding for obtaining a coated injection-molded article to the edge portion in FIG. 11 the present invention.
【図１２】本発明における端縁部まで被覆された射出成
形品を得るための射出成形の過程を示す模式図。Schematic diagram showing the process of injection molding for obtaining a coated injection-molded article to the edge portion of the present invention; FIG.
フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ Ｂ２９Ｌ 31:58 (56)参考文献 特開 平７−195425（ＪＰ，Ａ) 特開 平７−195424（ＪＰ，Ａ) 特開 平６−328498（ＪＰ，Ａ) 特開 平２−155709（ＪＰ，Ａ) 特開 平３−243336（ＪＰ，Ａ) 特開 平４−336215（ＪＰ，Ａ) 特開 昭61−10442（ＪＰ，Ａ) 特開 平９−1588（ＪＰ，Ａ) 特開 昭62−212114（ＪＰ，Ａ) (58)調査した分野(Int.Cl.7，ＤＢ名) B29C 45/14 Continuation of the front page (51) Int.Cl. 7 Identification symbol FIB29L 31:58 (56) References JP-A-7-195425 (JP, A) JP-A-7-195424 (JP, A) JP-A-6 JP-A-328498 (JP, A) JP-A-2-155709 (JP, A) JP-A-3-243336 (JP, A) JP-A-4-336215 (JP, A) JP-A-61-10442 (JP, A) JP-A-9-1588 (JP, A) JP-A-62-212114 (JP, A) (58) Fields investigated (Int. Cl. 7 , DB name) B29C 45/14
Claims (4)
で該金型を型閉めし、キャビティ内に溶融樹脂を射出し
て、該被覆用フィルムにより被覆された射出成形品を製
造するに際し、被覆用フィルムとして下記（ａ）〜
（ｄ）の条件を満たすフィルムを用いることを特徴とす
る被覆用フィルムにより端縁部まで被覆された射出成形
品の製造方法。 （ａ）厚みが０．１〜１０ｍｍであり、 （ｂ）得られる射出成形品の端縁部まで被覆するのに十
分な面積を有し、かつ （ｃ）全周縁部にわたって、深さがフィルム厚みの３０
％から２００％、高さ がフィルム厚みの２００％から７
００％であるアンダーカットを設ける ことにより、金型
を型閉めした時にキャビティ内に納まり得る、 （ｄ）予備成形されたフィルム 1. Inserting a coating film into a mold,
Close the mold and inject the molten resin into the cavity
To produce an injection molded article covered with the coating film.
At the time of production, the following (a) to
Characterized in that a film satisfying the condition (d) is used.
Molding covered to the edge with a covering film
Product manufacturing method. (A) 0.1 to 10 mm in thickness; (b) sufficient to cover the edge of the resulting injection molded article
(C) over the entire periphery, the depth is 30 times the film thickness.
% To 200%, height is 200% to 7% of film thickness
By providing an undercut that is 00%, the mold
(D) Pre-formed film that can fit in cavity when mold is closed
れたものである請求項１に記載の射出成形品の製造方
法。 2. The coating film is manufactured by vacuum forming.
The method for producing an injection-molded article according to claim 1, wherein
Law.
に溝状の切欠き部分を設けることによって、成形品にア
ンダーカットを形成し得るようにした真空成形金型を用
いて製造されたものである請求項２に記載の射出成形品
の製造方法。 3. The method according to claim 1, wherein the coating film is in the vicinity of a male convex base.
By providing a groove-shaped notch on the molded product,
Using a vacuum forming die that can form undercuts.
3. The injection-molded article according to claim 2, which is manufactured by
Manufacturing method.
なる基材層及び着色層、アクリル樹脂からなる透明層を
有する積層フィルムである請求項１〜３のいずれか一項
に記載の射出成形品の製造方法。 4. The coating film is made of a vinyl chloride resin.
Base layer and colored layer, transparent layer made of acrylic resin
It is a laminated film having any one of Claims 1-3.
5. The method for producing an injection-molded article according to 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24443395A JP3116783B2 (en) | 1995-09-22 | 1995-09-22 | Method for producing coated injection molded article |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24443395A JP3116783B2 (en) | 1995-09-22 | 1995-09-22 | Method for producing coated injection molded article |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0985777A JPH0985777A (en) | 1997-03-31 |
| JP3116783B2 true JP3116783B2 (en) | 2000-12-11 |
Family
ID=17118590
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP24443395A Expired - Fee Related JP3116783B2 (en) | 1995-09-22 | 1995-09-22 | Method for producing coated injection molded article |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3116783B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015171535A (en) * | 2009-07-26 | 2015-10-01 | フォエバー ヤング インターナショナル、 インク． | Self-heated consumer spa products and application products thereof |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1301324A4 (en) * | 2000-06-12 | 2008-04-30 | Green Tokai Co Ltd | Injection co-molding with offset parting line |
| JP4500192B2 (en) * | 2005-03-23 | 2010-07-14 | アイシン精機株式会社 | In-mold painting method, molded product and mold |
-
1995
- 1995-09-22 JP JP24443395A patent/JP3116783B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015171535A (en) * | 2009-07-26 | 2015-10-01 | フォエバー ヤング インターナショナル、 インク． | Self-heated consumer spa products and application products thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0985777A (en) | 1997-03-31 |
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