JPS59133028A - Manufacture of decorated multicomponent injection molding - Google Patents

Manufacture of decorated multicomponent injection molding

Info

Publication number
JPS59133028A
JPS59133028A JP817283A JP817283A JPS59133028A JP S59133028 A JPS59133028 A JP S59133028A JP 817283 A JP817283 A JP 817283A JP 817283 A JP817283 A JP 817283A JP S59133028 A JPS59133028 A JP S59133028A
Authority
JP
Japan
Prior art keywords
synthetic resin
injection molding
injected
component
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.)
Pending
Application number
JP817283A
Other languages
Japanese (ja)
Inventor
Makoto Matsuo
誠 松尾
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dai Nippon Printing Co Ltd
Original Assignee
Dai Nippon Printing Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Dai Nippon Printing Co Ltd filed Critical Dai Nippon Printing Co Ltd
Priority to JP817283A priority Critical patent/JPS59133028A/en
Publication of JPS59133028A publication Critical patent/JPS59133028A/en
Pending legal-status Critical Current

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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C45/14688—Coating articles provided with a decoration
    • 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/16—Making multilayered or multicoloured articles
    • B29C45/1671—Making multilayered or multicoloured articles with an insert
    • 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C45/14688—Coating articles provided with a decoration
    • B29C2045/14713—Coating articles provided with a decoration decorations in contact with injected material

Abstract

PURPOSE:To form a pattern beautifully by a method wherein after a film with a printed pattern is fixed on the surface of an injection molding die, a first synthetic resin is injected into a cavity and one or more kinds of other synthetic resins are injected slightly delayed. CONSTITUTION:A film with a printed pattern is fixed on the surface of an injection molding die and then a first synthetic resin component is injected into a die cavity. Then, more than one or more kinds of other synthetic resin components are injected slightly delayed to form a multilayer molding with said pattern buried thereinto on the surface formed by the first synthetic resin. The above-mentioned method applicable for the case where at least one kind of the synthetic resin components is foaming, especially when the component forming the surface layer of a product is foaming.

Description

【発明の詳細な説明】 本発明は、多成分射出成形品であって絵付きのものの製
造方法に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for manufacturing multi-component injection molded articles with designs.

絵柄を印刷したフィルムを射出酸Ｖ金型の表面に何らか
の手段で固定してＪ３き、合成樹脂の射出成形を行なっ
て、上記フィルムが成形品の表面に埋め込まれた製品を
得る技術は、「絵付は成形」の名で知ら、実施されてい
る。The technique of fixing a film with a pattern printed on it by some means to the surface of an injection acid V mold, then performing injection molding of synthetic resin to obtain a product with the film embedded in the surface of the molded product is as follows: It is known and practiced as "Painting is molding".

最近、二またはそれ以上の異種の合成樹脂を射出成形し
て二または多層の成形品を得″る多成分射出成形の技術
が開発され、実用化の努力が進められるようになった。Recently, a multicomponent injection molding technique in which two or more different types of synthetic resins are injection molded to obtain a two- or multilayer molded product has been developed, and efforts are being made to put it into practical use.

　これは、金型キャビティ内に第一の成分を射出し、そ
れにわずかおくれで他の成分を射出することにより、第
一の成分が外側に、そして他の成分が内部に入った成形
品を得るものである。　このような方法は、当然のこと
に、実施に当って高度のノウハウと操業の正確なコント
１」−ルを要求する。This is done by injecting the first component into the mold cavity and then injecting the other components after a slight delay, resulting in a molded product with the first component on the outside and the other components inside. It is something. Such methods naturally require a high degree of know-how and precise control of operations in their implementation.

本発明者は、前記の絵付は成形の技術と多成分射出成形
の技術とを組み合わせることを着想して実験した結果、
この組み合わせが単に可能であるばかりでなく、きわめ
て好ましいものであることを見出して本発明に至った。The inventor of the present invention conceived and experimented with the idea of combining molding technology and multi-component injection molding technology for the above-mentioned painting.
The inventors have discovered that this combination is not only possible, but also extremely preferable, leading to the present invention.

本発明の絵付き多成分射出成形品の製造方法は、絵柄を
印刷したフィルムを射出成形金型の表面に固定しておき
、金型キャビティ内に第一の合成樹脂成分を射出し、そ
れにわずかおくれで少なくともいま１種の他の合成樹脂
成分を射出することにより、第一の合成樹脂で形成され
る表面に前記絵柄が埋め込まれた多層の成形品を得るこ
とからなる。The method for producing multi-component injection molded products with pictures of the present invention involves fixing a film printed with a picture on the surface of an injection mold, injecting the first synthetic resin component into the mold cavity, and adding a small amount of By injecting at least one other synthetic resin component at a later stage, a multilayer molded product having the pattern embedded in the surface formed of the first synthetic resin is obtained.

絵柄印刷フィルムの金型表面への固定は、絵付は成形に
おいて確立された技術に従えばよい、１予成分射出成形
もまた、既知の技術で実茄できるが、本発明においては
、いっそう容易である。Fixing of the pattern printing film to the mold surface can be done by following established technology in molding.One-preliminary injection molding can also be carried out using known techniques, but in the present invention, it can be done even more easily. be.

絵付けが多成分割出成形にとって好ましい理由は明らか
でないが、金型表面に固定された印刷フィルムは熱伝導
度が低いため、キャビティ内に射出された溶融合成樹脂
は、金型に直接接したものより冷却されにくり、金型内
を流動しやすいためと部分を絵付はフィルムが占めると
好結果が得られ、また多層成形品の形成に困九の多い薄
手大型の製品の製造が容易になるからである。It is not clear why painting is preferable for multi-component injection molding, but the printed film fixed to the mold surface has low thermal conductivity, so the molten plastic injected into the cavity is in direct contact with the mold. Good results can be obtained when the film occupies the painting part because it is difficult to cool down and flows easily in the mold, and it is also easier to manufacture thin and large products that are often difficult to form into multilayer molded products. Because it will be.

本発明の製造方法は、合成樹脂成分のうち少なくとも１
種が発泡性である場合にも適用可能である。　とくに、
製品の表層を形成する成分を発泡性としたときに有意義
であって、通常の射出成形では表面に微細な気泡を含む
、いわゆるスキン層が生成するが、給付（ノフィルムの
存在によりその部分はスキン層が形成されず、フィルム
の下は透明な樹脂層となるから、絵柄が美麗にあられれ
る。In the production method of the present invention, at least one of the synthetic resin components
It is also applicable when the seeds are effervescent. especially,
This is significant when the component that forms the surface layer of the product is foamable, and in normal injection molding, a so-called skin layer containing fine air bubbles is generated on the surface, but due to the presence of film, that part is Since no skin layer is formed and there is a transparent resin layer underneath the film, the pattern can be beautifully displayed.

このように、本発明の絵付き多成分割出成形品の製造方
法は、家具、健在、家庭電気製品の部品、各種ＯＡ機器
熱の部品あるいは自動車部品の製造に適している。As described above, the method for producing a multi-component molded product with a picture according to the present invention is suitable for producing parts for furniture, household electrical appliances, heat parts for various OA equipment, and automobile parts.

特許出願人　　　　大日本印刷株式会社代理人　弁理士
　　須　賀　総　夫 １６２Patent applicant Dai Nippon Printing Co., Ltd. Agent Patent attorney Souo Suga 162

Claims (2)

【特許請求の範囲】[Claims] （１）絵柄を印刷したフィルムを射出成形金型の表面に
固定しておき、金型キｉｙビティ内に第一の合成樹脂成
分を射出し、それにわずかおくれで少なくともいま１種
の他の合成樹脂成分を射出することにより、第一の合成
樹脂で形成される表面に前記絵柄が埋め込まれた多層の
成形品を得ることからなる絵付き多成分射出成形品の製
造方法。(1) A film with a printed pattern is fixed on the surface of an injection mold, the first synthetic resin component is injected into the mold cavity, and after a short delay at least one other synthetic resin component is injected into the mold cavity. A method for producing a multi-component injection molded article with a picture, which comprises injecting a resin component to obtain a multilayer molded article in which the picture is embedded in the surface formed of a first synthetic resin. （２）複数の合成樹脂成分のうち、少なくとも１種が発
泡・性合成樹脂である特許請求の範囲第１項の製造方法
。(2) The manufacturing method according to claim 1, wherein at least one of the plurality of synthetic resin components is a foamable synthetic resin.
JP817283A 1983-01-21 1983-01-21 Manufacture of decorated multicomponent injection molding Pending JPS59133028A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP817283A JPS59133028A (en) 1983-01-21 1983-01-21 Manufacture of decorated multicomponent injection molding

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP817283A JPS59133028A (en) 1983-01-21 1983-01-21 Manufacture of decorated multicomponent injection molding

Publications (1)

Publication Number Publication Date
JPS59133028A true JPS59133028A (en) 1984-07-31

Family

ID=11685905

Family Applications (1)

Application Number Title Priority Date Filing Date
JP817283A Pending JPS59133028A (en) 1983-01-21 1983-01-21 Manufacture of decorated multicomponent injection molding

Country Status (1)

Country Link
JP (1) JPS59133028A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0607968A1 (en) * 1993-01-20 1994-07-27 EMPE-WERKE ERNST PELZ GmbH & CO. KG Method for making a lining and in particular lining obtained thereby
EP0606118A3 (en) * 1989-05-26 1995-03-08 Esec Far East Ltd Method of producing a plastic card.
WO1997034756A1 (en) * 1996-03-19 1997-09-25 Reum Aktiengesellschaft Process for production of control panels

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0606118A3 (en) * 1989-05-26 1995-03-08 Esec Far East Ltd Method of producing a plastic card.
EP0607968A1 (en) * 1993-01-20 1994-07-27 EMPE-WERKE ERNST PELZ GmbH & CO. KG Method for making a lining and in particular lining obtained thereby
WO1997034756A1 (en) * 1996-03-19 1997-09-25 Reum Aktiengesellschaft Process for production of control panels

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