JP2008273058A - 合成樹脂製ブロー容器 - Google Patents
合成樹脂製ブロー容器 Download PDFInfo
- Publication number
- JP2008273058A JP2008273058A JP2007120108A JP2007120108A JP2008273058A JP 2008273058 A JP2008273058 A JP 2008273058A JP 2007120108 A JP2007120108 A JP 2007120108A JP 2007120108 A JP2007120108 A JP 2007120108A JP 2008273058 A JP2008273058 A JP 2008273058A
- Authority
- JP
- Japan
- Prior art keywords
- blow
- container
- synthetic resin
- density
- resin made
- 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.)
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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
- 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
- B29C2949/22—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer at neck portion
-
- 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
- B29C2949/24—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer at flange portion
-
- 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
- B29C2949/26—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer at body portion
-
- 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
- B29C2949/28—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer at bottom portion
-
- 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
- B29C2949/3024—Preforms or parisons made of several components characterised by the number of components or by the manufacturing technique
-
- 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
- B29C2949/3032—Preforms or parisons made of several components having components being injected
-
- 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
- B29C2949/3041—Preforms or parisons made of several components having components being extruded
Landscapes
- Moulds For Moulding Plastics Or The Like (AREA)
- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
Abstract
【解決手段】残留応力を除去する加熱、収縮処理の前後でそれぞれ一回の軸延伸ブロー成形を行うことによって製造された合成樹脂製ブロー容器において、前記ブロー容器は、加熱処理を終えたのちにおけるブロー中間体2に対する密度の増減率を-0.03%以上とする。
【選択図】図1
Description
前記ブロー容器は、加熱処理を終えたのちにおけるブロー中間体に対する密度の増減率が−0.03%以上である、ことを特徴とする合成樹脂製ブロー容器である。
図1(a)〜(d)は280mlの容器を対象にした場合におけるプリフォームの状態から完成品に至るまでの各段階における外観形状を模式的に示したものであり、図中1はプリフォーム、2は一回目のブロー成形によって成形されたブロー中間体(一次ブロー中間体)、3は加熱処理後のブロー中間体そして4は完成品であるブロー容器である。
重さ29gのプリフォームを用いて、120°Cに加熱し170°Cの温度で一回目の二軸延伸ブロー成形を行い、次いで200°Cの温度域に維持して完成品よりも約0.8倍まで収縮させて内部応力を除去する加熱、収縮処理を施してブロー中間体を得た。そして、さらにブロー中間体を210〜230°Cの温度で二回目の二軸延伸ブロー成形を行い得られた完成品の耐熱性について調査した。ブロー中間体の密度、ブロー容器の密度、密度の増減率を表1に、また、耐熱性の調査結果(レトルト処理(温度90°Cの水を充填、キャッピングしたのち、蒸気により124°Cで42分間保持)前後の容器の容積変化量)を表2に示す。なお、密度は減圧吸収パネルが形成される部位を除いた胴部の中央域で計測したものである。また、比較例は二回目の二軸延伸ブロー成形の温度を100〜170°Cに変更した場合の結果を示したものである。
2 ブロー中間体
3 加熱処理後のブロー中間体
4 ブロー容器(完成品)
Claims (1)
- 残留応力を除去する加熱、収縮処理の前後でそれぞれ一回の二軸延伸ブロー成形を行うことによって製造された合成樹脂製ブロー容器であって、
前記ブロー容器は、加熱処理を終えたのちにおけるブロー中間体に対する密度の増減率が−0.03%以上である、ことを特徴とする合成樹脂製ブロー容器。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007120108A JP4878001B2 (ja) | 2007-04-27 | 2007-04-27 | 合成樹脂製ブロー容器 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007120108A JP4878001B2 (ja) | 2007-04-27 | 2007-04-27 | 合成樹脂製ブロー容器 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2008273058A true JP2008273058A (ja) | 2008-11-13 |
JP4878001B2 JP4878001B2 (ja) | 2012-02-15 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2007120108A Active JP4878001B2 (ja) | 2007-04-27 | 2007-04-27 | 合成樹脂製ブロー容器 |
Country Status (1)
Country | Link |
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JP (1) | JP4878001B2 (ja) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6149826A (ja) * | 1985-08-01 | 1986-03-11 | Yoshino Kogyosho Co Ltd | 2軸延伸ブロー成形方法 |
JPS6230019A (ja) * | 1985-08-01 | 1987-02-09 | Yoshino Kogyosho Co Ltd | 2軸延伸ブロ−成形方法 |
JPH09216275A (ja) * | 1996-06-24 | 1997-08-19 | Yoshino Kogyosho Co Ltd | 2軸延伸ブロー成形方法 |
JP2002067130A (ja) * | 2000-08-31 | 2002-03-05 | Yoshino Kogyosho Co Ltd | 耐熱性首曲がり容器の製造方法 |
-
2007
- 2007-04-27 JP JP2007120108A patent/JP4878001B2/ja active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6149826A (ja) * | 1985-08-01 | 1986-03-11 | Yoshino Kogyosho Co Ltd | 2軸延伸ブロー成形方法 |
JPS6230019A (ja) * | 1985-08-01 | 1987-02-09 | Yoshino Kogyosho Co Ltd | 2軸延伸ブロ−成形方法 |
JPH09216275A (ja) * | 1996-06-24 | 1997-08-19 | Yoshino Kogyosho Co Ltd | 2軸延伸ブロー成形方法 |
JP2002067130A (ja) * | 2000-08-31 | 2002-03-05 | Yoshino Kogyosho Co Ltd | 耐熱性首曲がり容器の製造方法 |
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JP4878001B2 (ja) | 2012-02-15 |
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