JP2009007060A - ダイレクトブロー成形法による合成樹脂製二重容器 - Google Patents
ダイレクトブロー成形法による合成樹脂製二重容器 Download PDFInfo
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- JP2009007060A JP2009007060A JP2007172672A JP2007172672A JP2009007060A JP 2009007060 A JP2009007060 A JP 2009007060A JP 2007172672 A JP2007172672 A JP 2007172672A JP 2007172672 A JP2007172672 A JP 2007172672A JP 2009007060 A JP2009007060 A JP 2009007060A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D23/00—Details of bottles or jars not otherwise provided for
- B65D23/02—Linings or internal coatings
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- 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
- B29C49/22—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor using multilayered preforms or parisons
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- 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
- B29C49/42—Component parts, details or accessories; Auxiliary operations
- B29C49/48—Moulds
- B29C49/4802—Moulds with means for locally compressing part(s) of the parison in the main blowing cavity
- B29C49/4817—Moulds with means for locally compressing part(s) of the parison in the main blowing cavity with means for closing off parison ends
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/06—Interconnection of layers permitting easy separation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D1/00—Containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material, by deep-drawing operations performed on sheet material
- B65D1/02—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents
- B65D1/0207—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents characterised by material, e.g. composition, physical features
- B65D1/0215—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents characterised by material, e.g. composition, physical features multilayered
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D77/00—Packages formed by enclosing articles or materials in preformed containers, e.g. boxes, cartons, sacks or bags
- B65D77/04—Articles or materials enclosed in two or more containers disposed one within another
- B65D77/06—Liquids or semi-liquids or other materials or articles enclosed in flexible containers disposed within rigid containers
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- 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
- B29C2949/00—Indexing scheme relating to blow-moulding
- B29C2949/30—Preforms or parisons made of several components
- B29C2949/3086—Interaction between two or more components, e.g. type of or lack of bonding
- B29C2949/3094—Interaction between two or more components, e.g. type of or lack of bonding preform having at least partially loose components, e.g. at least partially loose layers
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- 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
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- 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
- B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
- B29K2023/10—Polymers of propylene
- B29K2023/12—PP, i.e. polypropylene
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- 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
- B29K2067/00—Use of polyesters or derivatives thereof, as moulding material
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- 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
- B29L2009/00—Layered products
- B29L2009/001—Layered products the layers being loose
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Ceramic Engineering (AREA)
- Containers Having Bodies Formed In One Piece (AREA)
- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
- Packages (AREA)
- Details Of Rigid Or Semi-Rigid Containers (AREA)
Abstract
【解決手段】 ダイレクトブロー成形法による二重容器であって、相互に非接着性の合成樹脂からなる外層と内層の間に、ダイレクトブロー成形に伴う外層と内層の成形収縮の差により剥離形成された空隙を有する構成とするものである。
【選択図】 図1
Description
また、たとえば内層を成形収縮の異なる2つの層を接着積層したものとし、この内層をバイメタル状に撓み変形させて、外層から剥離させるような構成も可能である。
底部の底面にブロー割り金型のピンチオフ部により形成された底シール部の外層部分に、ダイレクトブロー成形に伴なう成形収縮により形成された底割れ部を有する構成としたものである。
本発明の主たる構成の外層と内層の間に空隙を有する二重容器は、特に内容体を外容体に挿入し組付け固定する必要もなく、外層と内層の成形収縮の差を利用して、通常のダイレクトブロー成形方法により容易に成形することができる。
この二重容器1は、ダイレクトブロー成形法により成形されたのもので、口筒部2、円筒状の胴部3、そして底部4を有する壜体である。
この二重容器1は、多層押出し成形により相互に非接着性の外層と内層を積層した多層パリソンを成形し、この溶融状態の多層パリソンをブロー成形する、ダイレクトブロー成形方により成形することができる。
外層11部分が内層12から部分的に剥離し、外層11部分に底割れ部6が形成される。
そして、上記の底割れ部6、すなわち外層11と内層12が部分的に剥離した部分を起点として、この底割れ部6から外気を導入しながら、上記の剥離力の作用により剥離が容器全体に進展して図1に示すように口筒部2を除く領域で空隙13が形成され、この空隙13を挟んだ二重壁状態となる。
すなわち、界面に作用する剥離力が剥離強度より十分大きくなるように外層11と内層12に使用する合成樹脂材料と、ブロー成形条件を選択し、さらには外層11と内層12を比較的厚肉にして面剛性を大きくすること等により外層11と内層12の剥離の開始と進展は可能であり、略真空状の空隙13を形成できる。
このポンプ付容器40の容器本体1aは、第1実施例の二重容器と略同様な構成であるが、比較的薄肉の内層12で、内圧の減少により内方に萎み変形自在に減容変形する内容体12aを形成しており、デラミボトルとしての機能を発揮する。
また、内容液の注出を終わって、ポンプPの押下げ状態を解除すると、内容体12aが減容変形した分、底割れ部6から外層11と内層12の間に外気が導入される。
上記実施例では口筒部を除く容器の略全体に空隙を形成したものについて説明したが、たとえば外層と内層を部分的に接着層で接着し、部分的に空隙を形成することもできる。
1a;容器本体
2 ;口筒部
3 ;胴部
4 ;底部
5 ;底シール部
5a;食い込み部
6;底割れ部
11;外層
11a;外容体
12;内層
12a;内容体
13;空隙
20;櫛付き容器
21;キャップ体
22;第1逆止弁体
23;オーリング
25;櫛体
26;注出流路
26a;注出孔
27;櫛歯片
31;ベースキャップ
32;第2逆止弁体
P ;ポンプ
Claims (3)
- ダイレクトブロー成形法による二重容器であって、相互に非接着性の合成樹脂からなる外層(11)と内層(12)の間に、ダイレクトブロー成形に伴なう前記外層(11)と内層(12)の成形収縮の差により剥離形成された空隙(13)を有することを特徴とする合成樹脂製二重容器。
- 底部(4)の底面にブロー割り金型のピンチオフ部により形成された底シール部(5)の外層(11)部分に、ダイレクトブロー成形に伴なう成形収縮により形成された底割れ部(6)を有する構成とした請求項1記載の合成樹脂製二重容器。
- 内層(12)が、内圧の減少により内方に萎み変形自在に減容変形する内容体(12a)を形成していることを特徴とする請求項1または2記載の合成樹脂製二重容器。
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007172672A JP5267901B2 (ja) | 2007-06-29 | 2007-06-29 | ダイレクトブロー成形法による合成樹脂製二重容器 |
AU2008272244A AU2008272244B2 (en) | 2007-06-29 | 2008-06-19 | Synthetic resin double container molded by direct blow molding process |
KR1020097006902A KR101493534B1 (ko) | 2007-06-29 | 2008-06-19 | 다이렉트 블로우 성형방법에 의한 합성수지제 이중 용기 |
PCT/JP2008/061189 WO2009004927A1 (ja) | 2007-06-29 | 2008-06-19 | ダイレクトブロー成形法による合成樹脂製二重容器 |
CA2692461A CA2692461C (en) | 2007-06-29 | 2008-06-19 | Synthetic resin double container molded by direct blow molding process |
EP08765744.1A EP2172400B1 (en) | 2007-06-29 | 2008-06-19 | A direct blow molding process for forming a double container of synthetic resin |
CN2008800007747A CN101547836B (zh) | 2007-06-29 | 2008-06-19 | 利用直接吹塑成形法形成的合成树脂制双层容器 |
US12/452,272 US9067709B2 (en) | 2007-06-29 | 2008-06-19 | Synthetic resin double container molded by direct blow molding process |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007172672A JP5267901B2 (ja) | 2007-06-29 | 2007-06-29 | ダイレクトブロー成形法による合成樹脂製二重容器 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2009007060A true JP2009007060A (ja) | 2009-01-15 |
JP5267901B2 JP5267901B2 (ja) | 2013-08-21 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2007172672A Active JP5267901B2 (ja) | 2007-06-29 | 2007-06-29 | ダイレクトブロー成形法による合成樹脂製二重容器 |
Country Status (8)
Country | Link |
---|---|
US (1) | US9067709B2 (ja) |
EP (1) | EP2172400B1 (ja) |
JP (1) | JP5267901B2 (ja) |
KR (1) | KR101493534B1 (ja) |
CN (1) | CN101547836B (ja) |
AU (1) | AU2008272244B2 (ja) |
CA (1) | CA2692461C (ja) |
WO (1) | WO2009004927A1 (ja) |
Cited By (3)
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WO2016051641A1 (ja) * | 2014-09-30 | 2016-04-07 | 株式会社吉野工業所 | 積層剥離容器 |
WO2020262595A1 (ja) * | 2019-06-28 | 2020-12-30 | 日精エー・エス・ビー機械株式会社 | 樹脂製成形品の製造装置、樹脂製成形品の製造方法、及び樹脂製成形品 |
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Also Published As
Publication number | Publication date |
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JP5267901B2 (ja) | 2013-08-21 |
AU2008272244B2 (en) | 2013-06-20 |
US20100200586A1 (en) | 2010-08-12 |
CA2692461C (en) | 2015-11-10 |
EP2172400A4 (en) | 2010-07-14 |
WO2009004927A1 (ja) | 2009-01-08 |
AU2008272244A1 (en) | 2009-01-08 |
CN101547836A (zh) | 2009-09-30 |
US9067709B2 (en) | 2015-06-30 |
EP2172400B1 (en) | 2013-08-28 |
KR101493534B1 (ko) | 2015-02-13 |
KR20100027088A (ko) | 2010-03-10 |
CN101547836B (zh) | 2013-07-31 |
CA2692461A1 (en) | 2009-01-08 |
EP2172400A1 (en) | 2010-04-07 |
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