JP6137900B2 - プリフォーム及び樹脂製容器の成形方法 - Google Patents
プリフォーム及び樹脂製容器の成形方法 Download PDFInfo
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- JP6137900B2 JP6137900B2 JP2013066764A JP2013066764A JP6137900B2 JP 6137900 B2 JP6137900 B2 JP 6137900B2 JP 2013066764 A JP2013066764 A JP 2013066764A JP 2013066764 A JP2013066764 A JP 2013066764A JP 6137900 B2 JP6137900 B2 JP 6137900B2
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- preform
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B11/00—Making preforms
- B29B11/14—Making preforms characterised by structure or composition
-
- 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
- B29C49/071—Preforms or parisons characterised by their configuration, e.g. geometry, dimensions or physical properties
-
- 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
- B29C2049/4879—Moulds characterised by mould configurations
- B29C2049/4892—Mould halves consisting of an independent main and bottom part
-
- 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
- B29C2949/07—Preforms or parisons characterised by their configuration
- B29C2949/0715—Preforms or parisons characterised by their configuration the preform having one end closed
-
- 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
- B29C2949/07—Preforms or parisons characterised by their configuration
- B29C2949/072—Preforms or parisons characterised by their configuration having variable wall thickness
-
- 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
- B29C2949/07—Preforms or parisons characterised by their configuration
- B29C2949/073—Preforms or parisons characterised by their configuration having variable diameter
-
- 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
- B29C2949/07—Preforms or parisons characterised by their configuration
- B29C2949/074—Preforms or parisons characterised by their configuration having ribs or protrusions
-
- 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
- B29C2949/07—Preforms or parisons characterised by their configuration
- B29C2949/076—Preforms or parisons characterised by their configuration characterised by the shape
- B29C2949/0761—Preforms or parisons characterised by their configuration characterised by the shape characterised by overall the shape
-
- 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
- B29C2949/07—Preforms or parisons characterised by their configuration
- B29C2949/076—Preforms or parisons characterised by their configuration characterised by the shape
- B29C2949/0768—Preforms or parisons characterised by their configuration characterised by the shape characterised by the shape of specific parts of preform
- B29C2949/0769—Preforms or parisons characterised by their configuration characterised by the shape characterised by the shape of specific parts of preform characterised by the lip, i.e. very top of preform neck
-
- 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
- B29C2949/07—Preforms or parisons characterised by their configuration
- B29C2949/076—Preforms or parisons characterised by their configuration characterised by the shape
- B29C2949/0768—Preforms or parisons characterised by their configuration characterised by the shape characterised by the shape of specific parts of preform
- B29C2949/078—Preforms or parisons characterised by their configuration characterised by the shape characterised by the shape of specific parts of preform characterised by the bottom
-
- 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
- B29C2949/07—Preforms or parisons characterised by their configuration
- B29C2949/081—Specified dimensions, e.g. values or ranges
- B29C2949/0811—Wall thickness
- B29C2949/0813—Wall thickness of the neck
-
- 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
- B29C2949/07—Preforms or parisons characterised by their configuration
- B29C2949/081—Specified dimensions, e.g. values or ranges
- B29C2949/0811—Wall thickness
- B29C2949/0817—Wall thickness of the body
-
- 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
- B29C2949/07—Preforms or parisons characterised by their configuration
- B29C2949/081—Specified dimensions, e.g. values or ranges
- B29C2949/0811—Wall thickness
- B29C2949/0818—Wall thickness of the bottom
-
- 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
- B29C2949/07—Preforms or parisons characterised by their configuration
- B29C2949/081—Specified dimensions, e.g. values or ranges
- B29C2949/082—Diameter
- B29C2949/0822—Diameter of the neck
-
- 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
- B29C2949/07—Preforms or parisons characterised by their configuration
- B29C2949/081—Specified dimensions, e.g. values or ranges
- B29C2949/082—Diameter
- B29C2949/0826—Diameter of the body
-
- 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
- B29C2949/07—Preforms or parisons characterised by their configuration
- B29C2949/081—Specified dimensions, e.g. values or ranges
- B29C2949/082—Diameter
- B29C2949/0827—Diameter of the bottom
-
- 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
- B29C2949/20—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer
-
- 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
- B29C49/08—Biaxial stretching during blow-moulding
-
- 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
- B29C49/08—Biaxial stretching during blow-moulding
- B29C49/087—Means for providing controlled or limited stretch ratio
-
- 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
- B29C49/08—Biaxial stretching during blow-moulding
- B29C49/10—Biaxial stretching during blow-moulding using mechanical means for prestretching
- B29C49/12—Stretching rods
-
- 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
- B29L2031/712—Containers; Packaging elements or accessories, Packages
- B29L2031/7158—Bottles
Description
即ち、本発明のプリフォームは、2つの口部と軸方向に長い円筒状のプリフォーム本体とを有し、ブロー成形法によって当該プリフォーム本体が2軸延伸されて樹脂製容器に成形されるプリフォームであって、前記プリフォーム本体の同じ内径で形成された部分の軸方向中央部分の肉厚をt1とし、当該プリフォーム本体の軸方向両端部分の肉厚をそれぞれt2、t3としたときに以下の関係式を満たし、当該中央部分から当該両端部分間の肉厚が当該各端部分に向かうに従って次第に減少し、前記樹脂製容器に使用される樹脂はポリプロピレン、ポリエチレン、ポリエステル、ナイロン、塩化ビニル、塩素化ポリエチレン又はエチレン−酢酸ビニル共重合体であることを特徴とする。
1.5<t1/t2<2.5
1.2<t1/t3<3.0
1.5<t1/t2
1.5<t1/t2<2.5
1.2<t1/t3<3.0
2、44、54、61 プリフォーム本体
3 第1の口部
4 第2の口部
10、45、55、63 上端部分
11、46、56、62 中央部分
12、47、57、64 下端部分
5、48 首部
15 成形機
16 ブロー成形金型
17 ストレッチロッド装置
18 ブローエアー装置
20 胴型
21 底型
22 第1挿嵌部
24 キャビティ
25 基型
26 受け型
27 第2挿嵌部
28 口型
29 水路
32 ストレッチロッド
35 成形体
40 輸液容器
41 容器本体
50 ブローエアー
Claims (4)
- 軸方向に長い円筒状のプリフォーム本体とこのプリフォーム本体の長手方向両側に形成された2つの口部とを有し、ブロー成形法によって当該プリフォーム本体が2軸延伸されて樹脂製容器に成形されるプリフォームであって、
前記プリフォーム本体の同じ内径で形成された部分の軸方向中央部分の肉厚をt1とし、当該プリフォーム本体の軸方向両端部分の肉厚をそれぞれt2、t3としたときに以下の関係式を満たし、当該中央部分から当該両端部分間の肉厚が当該各端部分に向かうに従って次第に減少し、
前記樹脂製容器に使用される樹脂はポリプロピレン、ポリエチレン、ポリエステル、ナイロン、塩化ビニル、塩素化ポリエチレン又はエチレン−酢酸ビニル共重合体であることを特徴とするプリフォーム。
1.5<t1/t2<2.5
1.2<t1/t3<3.0 - 前記プリフォーム本体は前記一方の口部直下に首部を有しており、前記軸方向中央部分の肉厚t1と、前記首部側の軸方向一端部分の肉厚t2とが、更に以下の関係式を満たしていることを特徴とする請求項1に記載のプリフォーム。
1.5<t1/t2 - 前記プリフォーム本体の軸方向両端部分の一方又は双方から前記中央部分間の外面が、内方へ向けて湾曲していることを特徴とする請求項1に記載のプリフォーム。
- プリフォームをブロー成形法によって2軸延伸して樹脂製容器を成形する樹脂製容器の成形方法であって、
前記プリフォームが請求項1〜3の何れかに記載のプリフォームとされ、前記プリフォーム本体の縦延伸倍率が1.7〜2.1であり、長辺側横延伸倍率が3.3〜3.9であり、短辺側横延伸倍率が2.1〜2.8であることを特徴とする樹脂製容器の成形方法。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2013066764A JP6137900B2 (ja) | 2013-03-27 | 2013-03-27 | プリフォーム及び樹脂製容器の成形方法 |
CN201380075114.6A CN105073383A (zh) | 2013-03-27 | 2013-06-24 | 预成型坯及树脂制容器 |
PCT/JP2013/067205 WO2014155759A1 (ja) | 2013-03-27 | 2013-06-24 | プリフォーム及び樹脂製容器 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2013066764A JP6137900B2 (ja) | 2013-03-27 | 2013-03-27 | プリフォーム及び樹脂製容器の成形方法 |
Publications (2)
Publication Number | Publication Date |
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JP2014188855A JP2014188855A (ja) | 2014-10-06 |
JP6137900B2 true JP6137900B2 (ja) | 2017-05-31 |
Family
ID=51622802
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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JP2013066764A Expired - Fee Related JP6137900B2 (ja) | 2013-03-27 | 2013-03-27 | プリフォーム及び樹脂製容器の成形方法 |
Country Status (3)
Country | Link |
---|---|
JP (1) | JP6137900B2 (ja) |
CN (1) | CN105073383A (ja) |
WO (1) | WO2014155759A1 (ja) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6072583B2 (ja) * | 2013-03-27 | 2017-02-01 | 日本山村硝子株式会社 | 樹脂製容器の成形方法及び成形機 |
JP6235393B2 (ja) * | 2014-03-27 | 2017-11-22 | 日本山村硝子株式会社 | 樹脂製容器の成形方法及びプリフォーム |
WO2016067511A1 (ja) * | 2014-10-30 | 2016-05-06 | 株式会社吉野工業所 | 液体ブロー成形用のプリフォーム |
JP6511359B2 (ja) * | 2014-10-30 | 2019-05-15 | 株式会社吉野工業所 | 容器の製造方法 |
WO2016067512A1 (ja) * | 2014-10-30 | 2016-05-06 | 株式会社吉野工業所 | 液体ブロー成形用のプリフォーム |
JP6553453B2 (ja) * | 2014-10-30 | 2019-07-31 | 株式会社吉野工業所 | 液体ブロー成形方法 |
JP7158338B2 (ja) * | 2019-05-31 | 2022-10-21 | サントリーホールディングス株式会社 | プリフォームおよび容器成形方法 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57142850A (en) * | 1981-02-24 | 1982-09-03 | Terumo Corp | Flat vessel which can be crushed and its manufacture |
JPS606429A (ja) * | 1983-06-27 | 1985-01-14 | Ekuseru Kk | 異径中空成形品の製造方法及びその製造装置 |
JPH09276369A (ja) * | 1996-04-11 | 1997-10-28 | Material Eng Tech Lab Inc | 輸液容器及びその製造方法 |
JP2000052412A (ja) * | 1998-08-12 | 2000-02-22 | Naigai Kasei Kk | 偏平容器の製造方法 |
JP4286968B2 (ja) * | 1999-05-26 | 2009-07-01 | 大日本印刷株式会社 | プリフォーム |
DE10234037A1 (de) * | 2002-07-26 | 2004-02-12 | Bekum Maschinenfabriken Gmbh | Vorformling zur Herstellung eines im Querschnitt nicht-kreisrunden, insbesondere im wesentlichen ovalen Hohlkörpers und Verfahren zur Herstellung solcher Hohlkörper |
ITMO20050315A1 (it) * | 2005-11-25 | 2007-05-26 | Sacmi Cooperativa Maccanici Imola Scrl | Preforma per ottenere contenitori |
JP5730128B2 (ja) * | 2011-05-25 | 2015-06-03 | 日本山村硝子株式会社 | 樹脂製容器の成形方法 |
-
2013
- 2013-03-27 JP JP2013066764A patent/JP6137900B2/ja not_active Expired - Fee Related
- 2013-06-24 WO PCT/JP2013/067205 patent/WO2014155759A1/ja active Application Filing
- 2013-06-24 CN CN201380075114.6A patent/CN105073383A/zh active Pending
Also Published As
Publication number | Publication date |
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CN105073383A (zh) | 2015-11-18 |
WO2014155759A1 (ja) | 2014-10-02 |
JP2014188855A (ja) | 2014-10-06 |
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