JPS61246036A - Manufacture of plastic hollow body - Google Patents

Manufacture of plastic hollow body

Info

Publication number
JPS61246036A
JPS61246036A JP60088315A JP8831585A JPS61246036A JP S61246036 A JPS61246036 A JP S61246036A JP 60088315 A JP60088315 A JP 60088315A JP 8831585 A JP8831585 A JP 8831585A JP S61246036 A JPS61246036 A JP S61246036A
Authority
JP
Japan
Prior art keywords
parison
leaf
cavity surface
minute irregularities
plastic
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.)
Granted
Application number
JP60088315A
Other languages
Japanese (ja)
Other versions
JPH0425850B2 (en
Inventor
Yoshinari Yasuda
安田　好成
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.)
Kyoraku Co Ltd
Original Assignee
Kyoraku 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 Kyoraku Co Ltd filed Critical Kyoraku Co Ltd
Priority to JP60088315A priority Critical patent/JPS61246036A/en
Publication of JPS61246036A publication Critical patent/JPS61246036A/en
Publication of JPH0425850B2 publication Critical patent/JPH0425850B2/ja
Granted 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
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/24—Lining or labelling
    • 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
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/24—Lining or labelling
    • B29C2049/2412—Lining or labelling outside the article
    • 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
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/02—Combined blow-moulding and manufacture of the preform or the parison
    • B29C49/04—Extrusion blow-moulding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2713/00—Use of textile products or fabrics for preformed parts, e.g. for inserts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/30—Vehicles, e.g. ships or aircraft, or body parts thereof
    • B29L2031/3005—Body finishings
    • B29L2031/3014—Door linings

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)

Abstract

PURPOSE:To easily obtain a plastic hollow body with excellent external appearance and adhesive property by a method wherein a flexible leaf is installed onto the molding cavity surface consisting of minute irregularities and, after that, a plastic parison is inflated so as to form the leaf itself into the shape of minute irregularities and at the same time integrally stick the leaf to the parison by the heat of the parison. CONSTITUTION:Firstly, a flexible leaf with a thickness of 0.4mm or less is installed on the molding cavity surface consisting of minute irregularities, the depth of which is 0.01-0.5mm. Secondly, a plastic parison 1 is inflated so as to scatter the gas interposing between the leaf and the parison and,at the same time, to form the leaf itself into the shape of minute irregularities and integrally stick the leaf to the parison by the heat of the parison. A tubular parison 1 is extruded from an extruder head 3. Further, the leaf 5 is temporarily attached onto the minutely irregular cavity surface 4 by being sucked through vacuum holes 6. Next, molds 2a and 2b are closed. Pressurized fluid is blown through a blow-in nozzle into the parison 1 in order to inflate the parison 1. The leaf 5 is bonded to the parison by the heat of the parison 1 when the leaf contacts with the parison 1. The leaf 5 is formed into the shape of minute irregularities by being pressed against the minute irregularity cavity surface.

Description

【発明の詳細な説明】 産業上の利用分野 本発明はプラスチック中空体の外面に文字、模様または
着色された薄片をブロー成形時一体に貼着するプラスチ
ック中空体の製造方法に関する。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a method for manufacturing a hollow plastic body, in which letters, patterns or colored flakes are integrally attached to the outer surface of the hollow plastic body during blow molding.

従来の技術 従来よりプラスチック中空体の外面に薄片をブロー成形
時一体に貼着するプラスチック中空体の製造方法は特公
昭３５−９４２０号公報、特公昭３８−２６１１９号公
報、特公昭４９−１０３４４号公報、特公昭５１−１４
５３６号公報等にて公知である。Conventional technology Conventionally, a method for manufacturing a hollow plastic body in which a thin piece is integrally attached to the outer surface of the hollow plastic body during blow molding is disclosed in Japanese Patent Publication No. 35-9420, Japanese Patent Publication No. 38-26119, and Japanese Patent Publication No. 49-10344. Official Gazette, Special Publication No. 51-14
It is publicly known from Publication No. 536 and the like.

発明が解決しようとする問題点 特公昭３５−９４２０号公報、また特公昭３８−２６１
１９号公報に示された方法にあっては、薄片と中空体外
面との間に多数の気泡が介在し、外観及び接着性の面で
満足すべきプラスチック中空体を得ることができなかっ
た。Problems to be solved by the invention Japanese Patent Publication No. 35-9420 and Japanese Patent Publication No. 38-261
In the method disclosed in Publication No. 19, a large number of air bubbles were present between the thin piece and the outer surface of the hollow body, and it was not possible to obtain a plastic hollow body that was satisfactory in terms of appearance and adhesiveness.

また、上記問題を解決する目的で、特公昭４９−１０３
４４号公報、また特公昭５１−１４５３６号公報に示さ
れているような方法が考えられているが、特殊な吹込ノ
ズルまたは金型を使用しなければならず、装置が複雑で
ある欠点を有する。In addition, for the purpose of solving the above problem,
Methods such as those shown in Japanese Patent Publication No. 44 and Japanese Patent Publication No. 51-14536 have been considered, but they have the drawback that they require the use of special blowing nozzles or molds, and the equipment is complicated. .

問題点を解決するための手段 本発明は上記従来の欠点を解消するものであり、薄片と
中空体外面との間に気泡が介在することなく、外観及び
接着性に優れたプラスチック中空体を複雑な装置を使用
することなく容易に得ることができる製造方法を提供す
ることを目的とする。Means for Solving the Problems The present invention solves the above-mentioned conventional drawbacks, and it is possible to form a plastic hollow body with excellent appearance and adhesion without intervening air bubbles between the thin piece and the outer surface of the hollow body. The object of the present invention is to provide a manufacturing method that can be easily obtained without using special equipment.

本発明の上記目的は、厚さ０．４ｍｍ以下の可撓性を有
する薄片を、深さ０．０１〜０．５　ｍｍの微少凹凸か
らなる金型キャビテイ面に設置し、ついでプラスチック
のパリスンを膨張させることにより薄片とパリスンとの
間に介在する気体を分散せしめるとともに、薄片自体を
微少凹凸形状に成形し、薄片をパリスンの熱にて一体に
貼着することにより達成される。The above object of the present invention is to install a flexible thin piece with a thickness of 0.4 mm or less on a mold cavity surface consisting of minute irregularities with a depth of 0.01 to 0.5 mm, and then a plastic parison. This is achieved by dispersing the gas present between the flakes and the parison by expanding them, forming the flakes themselves into a slightly uneven shape, and sticking the flakes together using the heat of the parison.

作　　　　　　　　用 プラスチック中空体のブロー成形時、パリスンは非常に
短かい時間に膨張するが、例えばパリスンの温度また肉
厚等の若干の変化により、パリスンの膨張状態に変化を
きたし、薄片とパリスンとの間に僅かに気体が残留する
ことがあるが、本発明にあっては仮りに僅かに気体が残
留することとなっても、残留した気体を微少凹凸面にて
分散せしめ、気体が集中して発生する気泡は存在しなく
なる。また、薄片とパリスンとの境界面は微少凹凸形状
となるので、接着強度も向上する。なお、気泡の発生を
さらに防止するため、薄片に外観を損なわない程度に針
で突き刺した程の小孔を形成することもできる。Function When blow molding a hollow plastic body, the parison expands in a very short period of time, but slight changes in the temperature or wall thickness of the parison, for example, can cause a change in the expansion state of the parison, causing the separation between the flakes and the parison. However, in the present invention, even if a small amount of gas remains, the remaining gas is dispersed on the slightly uneven surface and the gas is concentrated. The bubbles that occur no longer exist. Furthermore, since the interface between the thin piece and the parison has a slightly uneven shape, the adhesive strength is also improved. In addition, in order to further prevent the generation of air bubbles, it is also possible to form small holes in the thin piece, the size of which can be pierced with a needle, to the extent that the appearance is not impaired.

実　　　施　　　例 以下本発明の一実施例を図面に基づき説明する。Example An embodiment of the present invention will be described below based on the drawings.

１はパリスン、２　ａ　＋　２　ｂは分割形式の金型、
３は押出ヘッドであり、金型２ａには深さ０．０１〜０
．５ｍｍ、好ましくは０．１〜０．３ｍｍの微少凹凸キ
ャビイ面４を有し、上記キャビテイ面４に対応する金型
内部には予め針状の部材にて複数の小孔を形成した薄片
５を吸引仮止するためのバキューム孔６が設けられてい
る。1 is parison, 2 a + 2 b is split type mold,
3 is an extrusion head, and the mold 2a has a depth of 0.01 to 0.
．． The mold has a slightly uneven cavity surface 4 of 5 mm, preferably 0.1 to 0.3 mm, and inside the mold corresponding to the cavity surface 4 is a thin piece 5 in which a plurality of small holes are previously formed using a needle-like member. A vacuum hole 6 for suction temporary fixing is provided.

まず、ポリエチレン、ポリプロピレン等の熱可塑性プラ
スチックを押出機（図示せず）にて溶融混練し、押出ヘ
ッド３より筒状のパリスン１を押出す。また、薄片５Ｖ
ｉバキユーム孔６より吸引することにより微少凹凸キャ
ビテイ面４に仮止めさ−れる。ついで、金型２ａ、２ｂ
を閉じ、パリメン１内に吹込ノズル（図示せず）より加
圧流体を吹込むことにより、パリスン１は膨張しく第２
図）、薄片５はパリスン１との接触時、パリスン１の熱
によりパリスン１と接着するとともに、薄片５は微少凹
凸キャビテイ面に押しつけられ微少凹凸形状に成形され
る（第３図）。その後パリスン１を冷却後金型２　ａ　
＋　２　ｂを開き、成形品を取出し、第４図のような薄
片５が貼付けられたプラスチック中空体である容器１０
が得られる。First, a thermoplastic plastic such as polyethylene or polypropylene is melt-kneaded in an extruder (not shown), and a cylindrical parison 1 is extruded from an extrusion head 3. Also, thin piece 5V
By suctioning through the vacuum hole 6, it is temporarily fixed to the slightly uneven cavity surface 4. Next, molds 2a and 2b
By closing the parison 1 and blowing pressurized fluid into the parison 1 from a blowing nozzle (not shown), the parison 1 expands and the second
When the thin piece 5 comes into contact with the parison 1, it is bonded to the parison 1 by the heat of the parison 1, and the thin piece 5 is pressed against the slightly uneven cavity surface and formed into a slightly uneven shape (FIG. 3). After that, after cooling parison 1, mold 2 a
+ 2b is opened, the molded product is taken out, and a container 10, which is a hollow plastic body with a thin piece 5 attached thereto as shown in FIG.
is obtained.

本発明において、プラスチック中空体とはタンク、ボト
ル、ケース、その他工業部品等である。In the present invention, the plastic hollow bodies include tanks, bottles, cases, and other industrial parts.

また、本発明において薄片自体は金型キャビテイ面の微
少凹凸面を再現して成形するため、厚さ０．４順以下の
プラスチックフィルム、紙、合成紙等可撓性を有する材
料で構成することが必要であり、金型キャビテイ面の微
少凹凸形状は、介在した気体が集中して発生することを
防止するため、深さ０Ｄ４ｒｒｖｎ以上に、また薄片の
平滑外観性を損なわないため深さ０．５ｍｍ以下に構成
することが必要である。In addition, in the present invention, since the thin piece itself is molded to reproduce the minute unevenness of the mold cavity surface, it must be made of a flexible material such as a plastic film, paper, or synthetic paper with a thickness of 0.4 or less. The fine irregularities on the mold cavity surface should be at a depth of 0D4rrvn or more to prevent the intervening gas from being concentrated and generated, and at a depth of 0D4rrvn or more so as not to impair the smooth appearance of the flakes. It is necessary to configure the thickness to be 5 mm or less.

発明の効果 本発明は上記の如く、薄片と中空体外面との間に気泡が
介在することなく、外観及び接着性に優れたプラスチッ
ク中空体を複雑な装置を使用することなく容易に薄片を
一体に貼着してなるプラスチック中空体を得ることがで
きる。Effects of the Invention As described above, the present invention can easily integrate thin pieces into a plastic hollow body with excellent appearance and adhesive properties without the presence of air bubbles between the thin pieces and the outer surface of the hollow body without using a complicated device. A hollow plastic body can be obtained by attaching the material to the material.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図から第４図は本発明の実施例を示すものであり、
第１図は金型断面略図、第２図及び第３図は金型の要部
拡大断面図、第４図は本発明にて得られたプラスチック
容器の斜視図である。 １・・・パリスン、２ａ、２ｂ・・・金型、４・・・微
少凹凸キャビテイ面、５・・・薄片1 to 4 show embodiments of the present invention,
FIG. 1 is a schematic sectional view of a mold, FIGS. 2 and 3 are enlarged sectional views of essential parts of the mold, and FIG. 4 is a perspective view of a plastic container obtained by the present invention. 1... Parison, 2a, 2b... mold, 4... slightly uneven cavity surface, 5... flake

Claims (1)

【特許請求の範囲】[Claims] 厚さ０．４ｍｍ以下の可撓性を有する薄片を、深さ０．
０１〜０．５ｍｍの微少凹凸からなる金型キャビティ面
に設置し、ついでプラスチックのパリスンを膨張させる
ことにより薄片とパリスンとの間に介在する気体を分散
せしめるとともに、薄片自体を微少凹凸形状に成形し、
薄片をパリスンの熱にて一体に貼着することを特徴とす
るプラスチック中空体の製造方法。A flexible thin piece with a thickness of 0.4 mm or less is placed at a depth of 0.4 mm.
It is installed on the mold cavity surface which has minute irregularities of 01 to 0.5 mm, and then the plastic parison is expanded to disperse the gas present between the thin piece and the parison, and the thin piece itself is molded into the fine uneven shape. death,
A method for manufacturing a hollow plastic body, characterized by bonding thin pieces together using the heat of a parison.
JP60088315A 1985-04-24 1985-04-24 Manufacture of plastic hollow body Granted JPS61246036A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP60088315A JPS61246036A (en) 1985-04-24 1985-04-24 Manufacture of plastic hollow body

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP60088315A JPS61246036A (en) 1985-04-24 1985-04-24 Manufacture of plastic hollow body

Publications (2)

Publication Number Publication Date
JPS61246036A true JPS61246036A (en) 1986-11-01
JPH0425850B2 JPH0425850B2 (en) 1992-05-01

Family

ID=13939496

Family Applications (1)

Application Number Title Priority Date Filing Date
JP60088315A Granted JPS61246036A (en) 1985-04-24 1985-04-24 Manufacture of plastic hollow body

Country Status (1)

Country Link
JP (1) JPS61246036A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01257024A (en) * 1988-04-07 1989-10-13 Toppan Printing Co Ltd Manufacture of vessel with label
EP0371969A1 (en) * 1987-04-28 1990-06-13 Plastipak Packaging Inc Blow molded polyethylene terephthalate container having iml textured label wall and method for making same.
JPH05185498A (en) * 1992-01-16 1993-07-27 Toppan Printing Co Ltd Blow mold and manufacture of blow mold as well as blow molding method
JPH09216631A (en) * 1987-06-11 1997-08-19 Toppan Printing Co Ltd Container with label and its manufacture
WO1998036892A1 (en) * 1997-02-21 1998-08-27 Möller Plast GmbH Method for producing plastic components
JP2007507366A (en) * 2003-09-30 2007-03-29 サルフレックス ポリマーズ リミテッド Method for forming a running board with a step board
JP2014136391A (en) * 2013-01-17 2014-07-28 Kyoraku Co Ltd Mold for blow molding and blow molding container
JP2019031105A (en) * 2018-11-26 2019-02-28 株式会社アイテック Decoration film in-mold blow molding method

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0371969A1 (en) * 1987-04-28 1990-06-13 Plastipak Packaging Inc Blow molded polyethylene terephthalate container having iml textured label wall and method for making same.
JPH09216631A (en) * 1987-06-11 1997-08-19 Toppan Printing Co Ltd Container with label and its manufacture
JPH01257024A (en) * 1988-04-07 1989-10-13 Toppan Printing Co Ltd Manufacture of vessel with label
JPH05185498A (en) * 1992-01-16 1993-07-27 Toppan Printing Co Ltd Blow mold and manufacture of blow mold as well as blow molding method
WO1998036892A1 (en) * 1997-02-21 1998-08-27 Möller Plast GmbH Method for producing plastic components
JP2007507366A (en) * 2003-09-30 2007-03-29 サルフレックス ポリマーズ リミテッド Method for forming a running board with a step board
JP2014136391A (en) * 2013-01-17 2014-07-28 Kyoraku Co Ltd Mold for blow molding and blow molding container
JP2019031105A (en) * 2018-11-26 2019-02-28 株式会社アイテック Decoration film in-mold blow molding method

Also Published As

Publication number Publication date
JPH0425850B2 (en) 1992-05-01

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