JP2012171687A5 - - Google Patents
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- JP2012171687A5 JP2012171687A5 JP2011039081A JP2011039081A JP2012171687A5 JP 2012171687 A5 JP2012171687 A5 JP 2012171687A5 JP 2011039081 A JP2011039081 A JP 2011039081A JP 2011039081 A JP2011039081 A JP 2011039081A JP 2012171687 A5 JP2012171687 A5 JP 2012171687A5
- Authority
- JP
- Japan
- Prior art keywords
- lid
- state
- stacked
- tackifier
- container
- 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
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Description
ところで、上記蓋材には、蓋材として使用されたときに容器口部に密着して容器内を気密に維持し、内容物の変質を長期にわたって防止するために所定値以上の封緘強度を有することや、使用に際して容器を開封しようとするときに引き剥しやすいものとするためにピール強度が所定値以下であることが要求されることはもちろんであるが、それらに加えて、使用前の蓋材を多数枚重ね合わせた状態で保管したときに貼り付いてしまわないこと(耐ブロッキング性)も重要な要求性能の一つである。しかしながら、前記従来技術による蓋材は、この点で必ずしも満足できるものではなかった。たとえば、特許文献1の蓋材におけるホットメルト接着剤層には、熱可塑性樹脂(EVA)30〜50重量%に対して水素添加ロジンなどの粘着付与剤が15〜30重量%配合されており、このような蓋材は、多数枚重ね合わせた状態で保管したときに、高配合された粘着付与剤の影響でブロッキングを起こしやすいものであった。 By the way, the lid member has a sealing strength of a predetermined value or more in order to maintain the inside of the container in an airtight state when it is used as a lid member, and to prevent the contents from being deteriorated over a long period of time. Of course, the peel strength is required to be a predetermined value or less in order to make it easy to peel off when opening the container in use. Another important performance requirement is that the material does not stick when stored in a state in which a large number of materials are stacked (blocking resistance). However, the lid material according to the prior art is not always satisfactory in this respect. For example, in the hot melt adhesive layer in the lid material of Patent Document 1 , 15 to 30% by weight of a tackifier such as hydrogenated rosin is blended with 30 to 50% by weight of thermoplastic resin (EVA), Such a lid material is likely to cause blocking due to the influence of a highly blended tackifier when stored in a state where a large number of the lid materials are stacked.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2011039081A JP5283090B2 (en) | 2011-02-24 | 2011-02-24 | Lid material |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2011039081A JP5283090B2 (en) | 2011-02-24 | 2011-02-24 | Lid material |
Publications (3)
Publication Number | Publication Date |
---|---|
JP2012171687A JP2012171687A (en) | 2012-09-10 |
JP2012171687A5 true JP2012171687A5 (en) | 2012-10-18 |
JP5283090B2 JP5283090B2 (en) | 2013-09-04 |
Family
ID=46974946
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2011039081A Active JP5283090B2 (en) | 2011-02-24 | 2011-02-24 | Lid material |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP5283090B2 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6763146B2 (en) * | 2016-01-22 | 2020-09-30 | 東洋インキScホールディングス株式会社 | Heat-meltable composition, lid material and food container made of the same |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6076586A (en) * | 1983-10-03 | 1985-05-01 | Toppan Printing Co Ltd | Heat bonding cover material |
JPS60110657A (en) * | 1983-11-08 | 1985-06-17 | 東洋製罐株式会社 | Sealed vessel |
JPS62275747A (en) * | 1986-05-26 | 1987-11-30 | 大日本印刷株式会社 | Manufacture of cover material for glass vessel |
JPH0425323Y2 (en) * | 1986-05-26 | 1992-06-17 | ||
JP2619693B2 (en) * | 1988-07-06 | 1997-06-11 | 昭和アルミニウム株式会社 | Heat sealing material for hermetically sealed containers |
JPH05154445A (en) * | 1991-12-05 | 1993-06-22 | Mitsubishi Petrochem Co Ltd | Production of heat sealable cap material |
JP2001031129A (en) * | 1999-07-15 | 2001-02-06 | Nippon Matai Co Ltd | Sealed packaging body of glass container, and sealing method and apparatus |
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2011
- 2011-02-24 JP JP2011039081A patent/JP5283090B2/en active Active
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