JPH04182113A - Manufacture of packaged container - Google Patents
Manufacture of packaged containerInfo
- Publication number
- JPH04182113A JPH04182113A JP2309516A JP30951690A JPH04182113A JP H04182113 A JPH04182113 A JP H04182113A JP 2309516 A JP2309516 A JP 2309516A JP 30951690 A JP30951690 A JP 30951690A JP H04182113 A JPH04182113 A JP H04182113A
- Authority
- JP
- Japan
- Prior art keywords
- polypropylene
- melting point
- haze
- packaging container
- laminated sheet
- 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.)
- Pending
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 7
- 239000004743 Polypropylene Substances 0.000 claims abstract description 33
- 229920001155 polypropylene Polymers 0.000 claims abstract description 26
- -1 polypropylene Polymers 0.000 claims abstract description 17
- 238000002844 melting Methods 0.000 claims abstract description 14
- 230000008018 melting Effects 0.000 claims abstract description 14
- 229920000219 Ethylene vinyl alcohol Polymers 0.000 claims abstract description 10
- 238000010438 heat treatment Methods 0.000 claims abstract description 10
- 238000003856 thermoforming Methods 0.000 claims abstract description 5
- 238000004806 packaging method and process Methods 0.000 claims description 39
- 229920005606 polypropylene copolymer Polymers 0.000 claims description 2
- 239000012790 adhesive layer Substances 0.000 abstract description 14
- 235000013399 edible fruits Nutrition 0.000 abstract description 12
- 239000000463 material Substances 0.000 abstract description 9
- 239000007788 liquid Substances 0.000 abstract description 7
- 239000004715 ethylene vinyl alcohol Substances 0.000 abstract description 5
- 239000010410 layer Substances 0.000 abstract description 5
- 235000015110 jellies Nutrition 0.000 abstract description 4
- 239000008274 jelly Substances 0.000 abstract description 4
- 239000000565 sealant Substances 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 3
- 238000009835 boiling Methods 0.000 abstract description 2
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 abstract 2
- 239000005977 Ethylene Substances 0.000 abstract 2
- 229920001577 copolymer Polymers 0.000 abstract 2
- UFRKOOWSQGXVKV-UHFFFAOYSA-N ethene;ethenol Chemical compound C=C.OC=C UFRKOOWSQGXVKV-UHFFFAOYSA-N 0.000 abstract 2
- 235000013569 fruit product Nutrition 0.000 description 13
- 230000014759 maintenance of location Effects 0.000 description 7
- 230000004888 barrier function Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 240000007087 Apium graveolens Species 0.000 description 3
- 235000015849 Apium graveolens Dulce Group Nutrition 0.000 description 3
- 235000010591 Appio Nutrition 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000011888 foil Substances 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000000796 flavoring agent Substances 0.000 description 1
- 235000019634 flavors Nutrition 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 239000002648 laminated material Substances 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
Classifications
-
- 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
- B65D1/22—Boxes or like containers with side walls of substantial depth for enclosing contents
- B65D1/26—Thin-walled containers, e.g. formed by deep-drawing operations
- B65D1/28—Thin-walled containers, e.g. formed by deep-drawing operations formed of laminated material
Abstract
Description
【発明の詳細な説明】
〔発明の目的〕
（産業上の利用分野）
本発明は、ポリプロピレン積層シートから強度を保持し
、しかも透明性の優れた成形品を製造する熱成形に関す
るものであり、特に、食品容器、果実製品用包装容器と
して有効に用いることのできるものである。[Detailed Description of the Invention] [Object of the Invention] (Industrial Application Field) The present invention relates to thermoforming for producing molded products from polypropylene laminated sheets that maintain strength and have excellent transparency. In particular, it can be effectively used as a food container or a packaging container for fruit products.
（従来の技術）
従来、内部に果物とゼリー液等が充填される果実製品用
包装容器か知られている。(Prior Art) Packaging containers for fruit products, the interior of which is filled with fruits, jelly liquid, etc., have been known.
果物とゼリー液等か内部に充填された果実製品用包装容
器は、蓋材によって密封され、その後衛生上および保存
性の点から殺菌処理される。A fruit product packaging container filled with fruits, jelly liquid, etc. is sealed with a lid, and then sterilized from the viewpoint of hygiene and preservation.
（発明か解決しようとする課題）
上述のように、果実等か充填され蓋材によって密封され
た果実製品用包装容器は、殺菌処理されるか、この殺菌
処理としては一般に熱水を用いたホイル処理か考えられ
ている。このため果実製品用包装容器としては、ボイル
処理に耐える所定の耐熱性か要求される。(Problems to be Solved by the Invention) As mentioned above, packaging containers for fruit products filled with fruit, etc. and sealed with a lid are either sterilized or, as a sterilization treatment, they are generally sterilized with foil using hot water. It is considered to be processed. For this reason, packaging containers for fruit products are required to have a certain level of heat resistance to withstand boiling.
また、従来からこの果実製品用包装容器について、内部
が良く見えるよう全体として透明性を有するものか求め
られている。Furthermore, there has been a demand for packaging containers for fruit products to have transparency as a whole so that the inside can be clearly seen.
ところで、−射的に果実製品用包装容器はプラスチック
製の積層シートを熱成形して作成される。Incidentally, packaging containers for fruit products are produced by thermoforming plastic laminated sheets.
しかしながら、上述のような耐熱性および透明性に優れ
た果実製品用包装容器の製造方法について、未だに効果
的な技術か確立していないのか実情である。However, the actual situation is that no effective technique has yet been established for producing packaging containers for fruit products with excellent heat resistance and transparency as described above.
本発明はこのような点を考慮してなされたものであり、
耐熱性および透明性に優れた果実製品用包装容器の製造
方法を提供することを目的とする。The present invention has been made in consideration of these points,
The purpose of the present invention is to provide a method for producing packaging containers for fruit products that have excellent heat resistance and transparency.
（課題を解決するための手段）
本発明は、ポリプロピレン／エチレン・ビニルアルコー
ル共重合体／ポリプロピレンの積層シートであってヘイ
ズか３０９６以下の積層シートを、ポリプロピレンの融
点−５°Ｃ〜ポリプロピレンの融点＋５℃の間に加熱し
、その後この積層シートを熱成形することを特徴とする
包装容器の製造方法である。(Means for Solving the Problems) The present invention provides a polypropylene/ethylene-vinyl alcohol copolymer/polypropylene laminate sheet having a haze of 3096 or less, from the melting point of polypropylene of -5°C to the melting point of polypropylene. This method of manufacturing a packaging container is characterized by heating the container to +5° C. and then thermoforming the laminated sheet.
（作 用）
本発明によれば、ヘイズおよび光沢が良好でかつ耐熱性
および座屈強度に優れ、さらにガスバリヤ性および保香
性に優れた包装容器を得ることができる。(Function) According to the present invention, it is possible to obtain a packaging container that has good haze and gloss, is excellent in heat resistance and buckling strength, and is also excellent in gas barrier properties and aroma retention properties.
（実施例）
以下、図面を膠照して本発明の実施例について説明する
。(Example) Hereinafter, an example of the present invention will be described with reference to the drawings.
第１図乃至第３図は本発明による果実製品用包装容器の
製造方法の一実施例を示す図である。1 to 3 are diagrams showing an embodiment of the method for manufacturing a packaging container for fruit products according to the present invention.
ます、果実製品用包装容器について、第２ａ図、第２ｂ
図、および第３図により説明する。Regarding packaging containers for fruit products, Figures 2a and 2b
This will be explained with reference to FIG.
第３図に示すように、包装容器２内には、果実４とセリ
−液５か充填され、この包装容器２は蓋材３によって密
封されている。As shown in FIG. 3, the packaging container 2 is filled with fruit 4 and celery liquid 5, and the packaging container 2 is sealed with a lid 3.
包装容器２は、第２ａ図に示すように、容器胴部２ａと
容器胴部２ａの上端開口周縁に設けられたフランジ部２
ｂとからなっている。一方、蓋材３は第２ｂ図に示すよ
うに、包装容器２のフランジ部２ｂにヒートシールされ
るフランジ部３ａと、落し蓋部３ｂとからなっている。As shown in FIG. 2a, the packaging container 2 includes a container body 2a and a flange portion 2 provided at the periphery of the upper opening of the container body 2a.
It consists of b. On the other hand, as shown in FIG. 2b, the lid material 3 consists of a flange portion 3a that is heat-sealed to the flange portion 2b of the packaging container 2, and a drop lid portion 3b.
このうち、蓋材３はポリプロピレン（ＰＰ）／接着層（
ＡＤ）／エチレン・ビニルアルコール共重合体（ＥＶＯ
Ｈ）／接着層（ＡＤ）／シーラント層のガスバリヤ性積
層材からなっており、この蓋材３はシーラント層を包装
容器２のフランジ部２ｂ側に向けてヒートシールされる
ようになっている。また蓋材は延伸ナイロン（ＯＮ）／
エチレンビニルアルコール共重合体（ＥＶＯＨ）／ シ
ーラント層の打ち抜き蓋（ロール蓋）でもかまわない。Of these, the lid material 3 is polypropylene (PP)/adhesive layer (
AD)/ethylene vinyl alcohol copolymer (EVO
The lid material 3 is made of a gas barrier laminated material of H)/adhesive layer (AD)/sealant layer, and the lid material 3 is heat-sealed with the sealant layer facing the flange portion 2b of the packaging container 2. In addition, the lid material is made of stretched nylon (ON).
A punched-out lid (roll lid) of an ethylene vinyl alcohol copolymer (EVOH)/sealant layer may also be used.
次に包装容器２の製造方法について第１図により説明
する。Next, a method for manufacturing the packaging container 2 will be explained with reference to FIG.
ます、ポリプロピレン（ＰＰ）／接着層（ＡＤ）／エチ
レン・ビニルアルコール共重合体（ＥＶＯＨ）／接着層
（ＡＤ）／ポリプロピレン（ＰＰ）の積層シート１５を
準備する。この積層シート１５は透明性シートとなって
おり、そのへイス（＠り度値）は３０以下、例えば２８
程度となっている。ここでヘイズは透明性を示す値であ
り、数字が小さくなるにつれて透明性か高くなっている
。First, a laminate sheet 15 of polypropylene (PP)/adhesive layer (AD)/ethylene-vinyl alcohol copolymer (EVOH)/adhesive layer (AD)/polypropylene (PP) is prepared. This laminated sheet 15 is a transparent sheet, and its heis (accuracy value) is 30 or less, for example 28.
It has become a degree. Here, haze is a value indicating transparency, and the smaller the number, the higher the transparency.
次にこの積層シート１５を上船熱器１１および下船熱器
１２の間に供給する。そして上下の加熱器１１および１
２の間で積層シート１５の表面および裏面を、ポリプロ
ピレンの融点−５℃〜ポリプロピレンの融点＋５℃の間
まで加熱する。Next, this laminated sheet 15 is supplied between the onboard heating device 11 and the disembarking heating device 12. and upper and lower heaters 11 and 1
2, the front and back surfaces of the laminated sheet 15 are heated to between -5°C, the melting point of polypropylene, and +5°C, the melting point of polypropylene.
次に加熱された積層シート］５を、プラグ２０を有する
上金型１３ａと下金型１．３ ｂとからなる成形金型１
３まで移送し、上金型１３ａおよび下金型１．３ ｂの
間で積層シート］５を挟持する。続いて、この成形金型
１３によって積層シート１５をプラクアシスト真空・圧
空成形して果物用包装容器２を製造する。Next, the heated laminated sheet] 5 is placed in a mold 1 consisting of an upper mold 13a having a plug 20 and a lower mold 1.3b.
3, and the laminated sheet] 5 is sandwiched between the upper mold 13a and the lower mold 1.3b. Subsequently, the laminated sheet 15 is subjected to plaque-assisted vacuum/pressure forming using the molding die 13 to produce the fruit packaging container 2.
一般に積層シート１５の加熱温度をポリプロピレンの融
点−５℃以下とした場合は、包装容器のヘイズ・光沢等
の光学特性は悪化しないが、耐熱性および座屈強度が悪
化する。一方、ポリプロピレンの融点＋５℃以上とした
場合は、包装容器の耐熱性および座屈強度等は良好であ
るか、ヘイズ・光沢等の光学特性が悪化する。Generally, when the heating temperature of the laminated sheet 15 is set to be lower than the melting point of polypropylene -5° C., optical properties such as haze and gloss of the packaging container do not deteriorate, but heat resistance and buckling strength deteriorate. On the other hand, if the temperature is higher than the melting point of polypropylene by 5°C, the heat resistance and buckling strength of the packaging container may be good, or the optical properties such as haze and gloss may deteriorate.
本実施例のように、積層シートの加熱温度をポリプロピ
レンの融点−５℃〜ポリプロピレンの融点＋５°Ｃの間
とすることにより、ヘイズ・光沢等の光学特性が良好で
かつ耐熱性および座屈強度か良好な包装容器を得ること
かできる。また、積層シート１５は、ガスバリヤ性およ
び保香性に優れたＥＶＯＨ層を含んでいるので、包装容
器のガスバリヤ性および保香性を向上させることかでき
る。As in this example, by setting the heating temperature of the laminated sheet between -5°C, the melting point of polypropylene, and +5°C, the melting point of polypropylene, optical properties such as haze and gloss are good, and heat resistance and buckling strength are improved. Or you can get a good packaging container. Furthermore, since the laminated sheet 15 includes an EVOH layer that has excellent gas barrier properties and aroma retention properties, it is possible to improve the gas barrier properties and aroma retention properties of the packaging container.
このように包装容器２は耐熱性および座屈強度か良好な
ので、内部に果実４とセリ−液５とか充填され、蓋材３
によって密封された果物用包装容器２を変形させること
なく、熱水により確実にホイル処理することかできる。Since the packaging container 2 has good heat resistance and buckling strength, the inside is filled with fruits 4 and celery liquid 5, and the lid material 3
The foil treatment can be reliably performed using hot water without deforming the fruit packaging container 2 sealed by the above method.
また、包装容器２の透明性を維持することかできるので
、果実４およびセリ−液５をきれいな状態で外部に示す
ことができる。さらにカスバリヤ性および保香性に優れ
た包装容器２を用いることにより、内容物の保存性およ
び保香性を保つことかできる。Further, since the transparency of the packaging container 2 can be maintained, the fruit 4 and the celery liquid 5 can be shown to the outside in a clean state. Furthermore, by using the packaging container 2 which has excellent gas barrier properties and aroma retention properties, the preservability and aroma retention properties of the contents can be maintained.
具体例 以下本発明の具体例について説明する。Concrete example Specific examples of the present invention will be described below.
積層シートのポリプロピレンとして、チッ素石油化学株
式会社製のポリプロピレンＨＴＯＯ１３を用いた。次に
各積層シートを上述のようにポリプロピレンの融点−５
°Ｃ〜＋５℃の間で加熱して包装容器を製造した。Polypropylene HTOO13 manufactured by Chisso Petrochemical Co., Ltd. was used as the polypropylene for the laminated sheet. Next, each laminate sheet was coated with polypropylene melting point -5 as described above.
Packaging containers were produced by heating between °C and +5 °C.
二のようにして作成した包装容器２は、ＨＴＯＯｌ、３
の場合、いずれも良好な透明性を有し、かつ１２０°Ｃ
以上の良好な耐熱性を示した。The packaging container 2 created as in 2 is HTOOl, 3
Both have good transparency and 120°C
The above results showed good heat resistance.
以上説明したように、本発明によれば、ヘイスおよび光
沢か良好で、かつ耐熱性および座屈強度に優れ、さらに
ガスバリヤ性および保香性に優れた包装容器を得ること
かできる。このため、果実等を充填して密封した果実製
品用包装容器を、変形させることなく確実にボイル処理
することかできる。また内容物を果実製品用包装容器を
通して外部にきれいに示すことかできるとともに、内容
物の保存性および保香性を保つことができる。As explained above, according to the present invention, it is possible to obtain a packaging container that has good haze and gloss, is excellent in heat resistance and buckling strength, and is also excellent in gas barrier properties and aroma retention properties. Therefore, a packaging container for fruit products filled with fruits and the like and sealed can be reliably boiled without being deformed. Moreover, the contents can be clearly displayed to the outside through the packaging container for fruit products, and the preservability and flavor retention of the contents can be maintained.
第１図は本発明による包装容器の製造方法を行なう装置
の概略図であり、第２ａ図は本発明によって製造された
包装容器の斜視図であり、第２ｂ図は包装容器を密封す
る蓋材の斜視図であり、第３図は包装容器と蓋材の側断
面図である。
２・・・包装容器、３・・・蓋材、４・・・果実、５・
・・ゼリー液、１１・・・主加熱器、１２・・・下顎熱
器、１３・・・成形金型、１５・・積層シート。
出願人代理人 佐 藤 −雄
＄ １ 図
ｈｌ 第乃図
第 ３ 図FIG. 1 is a schematic diagram of an apparatus for carrying out the method for manufacturing a packaging container according to the present invention, FIG. 2a is a perspective view of a packaging container manufactured according to the present invention, and FIG. 2b is a lid material for sealing the packaging container. FIG. 3 is a side sectional view of the packaging container and the lid. 2... Packaging container, 3... Lid material, 4... Fruit, 5...
...Jelly liquid, 11.. Main heater, 12.. Lower jaw heating device, 13.. Molding mold, 15.. Laminated sheet. Applicant's agent Mr. Sato $1 Figure hl Figure 3 Figure 3
Claims (1)
／ポリプロピレンの積層シートであってヘイズが３０％
以下の積層シートを、ポリプロピレンの融点−５℃〜ポ
リプロピレンの融点＋５℃の間に加熱し、その後この積
層シートを熱成形することを特徴とする包装容器の製造
方法。Laminated sheet of polypropylene/ethylene vinyl alcohol copolymer/polypropylene with a haze of 30%
A method for producing a packaging container, which comprises heating the following laminated sheet between -5°C, the melting point of polypropylene, and +5°C, the melting point of polypropylene, and then thermoforming the laminated sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2309516A JPH04182113A (en) | 1990-11-15 | 1990-11-15 | Manufacture of packaged container |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2309516A JPH04182113A (en) | 1990-11-15 | 1990-11-15 | Manufacture of packaged container |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04182113A true JPH04182113A (en) | 1992-06-29 |
Family
ID=17993945
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2309516A Pending JPH04182113A (en) | 1990-11-15 | 1990-11-15 | Manufacture of packaged container |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04182113A (en) |
-
1990
- 1990-11-15 JP JP2309516A patent/JPH04182113A/en active Pending
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