JP2000128229A - Packaging laminate and easy-to-open package - Google Patents
Packaging laminate and easy-to-open packageInfo
- Publication number
- JP2000128229A JP2000128229A JP30266098A JP30266098A JP2000128229A JP 2000128229 A JP2000128229 A JP 2000128229A JP 30266098 A JP30266098 A JP 30266098A JP 30266098 A JP30266098 A JP 30266098A JP 2000128229 A JP2000128229 A JP 2000128229A
- Authority
- JP
- Japan
- Prior art keywords
- manufactured
- resin
- package
- width
- density polyethylene
- 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
Links
Landscapes
- Packages (AREA)
- Wrappers (AREA)
Abstract
Description
【０００１】[0001]
【発明の技術分野】この発明は食品、薬品、工業材料等
の容器、蓋材、袋等の包装材料として、成形性（真空成
型、圧空成型、インジェクション成型等）が良く、低温
熱接着性があって長期にわたり優れた密封性を発揮し、
特に開封が容易でかつ悪戯防止機能をもち、湯殺菌、ボ
イル殺菌及びレトルト殺菌条件に耐えうる包装用積層体
及び包装体に関する。TECHNICAL FIELD The present invention has good moldability (vacuum molding, pressure molding, injection molding, etc.) and low-temperature thermal adhesiveness as a packaging material for containers, lids, bags, etc. of foods, medicines, industrial materials, etc. It has excellent sealing properties for a long time,
In particular, the present invention relates to a packaging laminate and a packaging body that can be easily opened and have a mischievous prevention function and that can withstand hot water sterilization, boiling sterilization, and retort sterilization conditions.
【０００２】[0002]
【従来の技術】従来の包装体として容器がポリプロピレ
ン（ＰＰ）樹脂、ポリエチレン（ＰＥ）樹脂、ポリエス
テル（ＰＥＴ）樹脂、ポリカーボネート（ＰＣ）樹脂、
ポリ塩化ビニル（ＰＶＣ）樹脂等の単一樹脂組成層から
成るものだけでは無く、目的用途にそった構成として三
種三層、二種三層、四種四層、三種四層、四種五層、五
種五層等の多層容器がある。2. Description of the Related Art As a conventional package, containers made of polypropylene (PP) resin, polyethylene (PE) resin, polyester (PET) resin, polycarbonate (PC) resin,
Not only a layer consisting of a single resin composition such as polyvinyl chloride (PVC) resin, but also three types of three layers, two types of three layers, four types of four layers, three types of four layers, four types of five layers And multi-layer containers of five types and five layers.
【０００３】それらの容器に対する蓋材としては、易開
封性を考えた多層蓋材が使用されているが、従来のこれ
らの包装体は、剥離強度のバラツキが大きい上、滑らか
な開封感が無く、特に子供や老人には不親切な包装体が
多く消費者の不人気をかっている。またそれらの包装体
が店頭に並んだ場合、包装体の一部を開封したりして商
品に悪戯された場合ほとんどその現象が発見されず、場
合によっては大きな社会問題になりつつある。As a lid material for these containers, a multi-layer lid material is used in consideration of easy opening. However, these conventional packages have large variations in peel strength and lack a smooth opening feeling. In particular, children and the elderly often have unfriendly packages, which have made consumers unpopular. In addition, when those packages are lined up in a store, if a part of the package is opened and the product is mischievous, the phenomenon is hardly found, and in some cases, it is becoming a major social problem.
【０００４】[0004]
【発明の課題】そこで、この発明の課題は、易開封性が
あって滑らかな開封感が得られ、特に悪戯防止機能を有
する包装用積層体及び包装体を提供することである。SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide a packaging laminate and a packaging body having an easy-opening property and a smooth opening feeling, and particularly having a function of preventing mischief.
【０００５】[0005]
【問題点を解決する為の手段】上記の課題を解決するた
めに、この発明の包装用積層体においては、基材に、リ
ニヤー低密度ポリエチレン樹脂１５〜８７重量％および
ポリブテン−１樹脂１３〜８５重量％からなる熱接着層
を設けた構成を採用したのである。また、この積層体を
蓋材として用いる場合は、その厚みを１００μｍ以下に
するのが好ましく、成形多重容器として用いる場合は、
厚みが２ｍｍ以下が好ましい。Means for Solving the Problems In order to solve the above problems, in the packaging laminate of the present invention, the base material contains 15 to 87% by weight of a linear low density polyethylene resin and 13 to 13% by weight of a polybutene-1 resin. The configuration in which a thermal adhesive layer of 85% by weight was provided was adopted. Further, when this laminate is used as a lid material, it is preferable that the thickness be 100 μm or less.
The thickness is preferably 2 mm or less.
【０００６】前記の蓋材と前記の成形多層容器の熱接着
層どうしを熱接着して易開封性包装体を形成する。この
熱接着層がリニヤー低密度ポリエチレン樹脂１５〜８７
重量％およびポリブテン−１樹脂１３〜８５重量％から
なる。[0006] The lid material and the thermal adhesive layer of the molded multilayer container are thermally bonded to each other to form an easily-openable package. This heat-bonding layer is a linear low-density polyethylene resin 15-87.
% By weight and 13-85% by weight of polybutene-1 resin.
【０００７】[0007]
【実施の形態】以下、この発明の実施形態を添付図面に
基づいて説明する。図１に示すように、包装積層体１
は、基材２と熱接着層３より成る。前記熱接着層３に
は、リニアー低密度ポリエチレン樹脂は１５〜８７重量
％およびポリブテン−１樹脂１３〜８５重量％からなる
ブレンド樹脂を用いる。この組成範囲外、すなわちリニ
アー低密度ポリエチレン樹脂が１５重量％未満または８
７重量％を越える場合では、良好な接着強度や特性が得
られず、易開封性の点で問題となる。特に好ましい範囲
としては、リニアー低密度ポリエチレン樹脂は５０〜８
７重量％およびポリブテン−１樹脂１３〜５０重量％か
らなるブレンド樹脂を用いるのがよい。このようなブレ
ンド樹脂をフィルム状とするには、公知の方法で行えば
よいが、例えば、インフレーション押し出し機によっ
て、厚み５μｍ〜１ｍｍ程度のフィルムを成膜すればよ
い。この時、同時に片面コロナ処理を施すこともでき
る。このフィルムと他の基材２等との２層以上の積層体
１を作製するには、公知の方法で作製でき、例えば他の
合成樹脂フィルムとのドライラミネーション、共押し出
し、塗布等の方法で積層することができる。積層させる
樹脂は、例えばＰＰ、ＰＥ、ＰＥＴ、ＰＣ、ＰＶＣ等の
公知の樹脂が使用でき、さらにシリカ、アルミナ、チタ
ニア、アルミニウム等の蒸着膜等の１種以上をさらに積
層させてもよい。蓋材や袋体に使用する場合には、さら
にコート紙、再生紙、クラフト紙、ロール紙、上質紙等
の紙類ならびにアルミニウム、銅、ステンレス等の金属
箔を積層させることができる。ただし、蓋材や袋に使用
する場合は、合計の厚みを２０〜１００μｍにすること
が好ましく、２０μｍ未満の場合には、強度やバリアー
性が乏しく、１００μｍを越える場合には、柔軟性やコ
ストの点で不利となる。また、積層体１には、任意の位
置に印刷等を施しても何ら差し支えなく、適宜必要に応
じて実施できる。Embodiments of the present invention will be described below with reference to the accompanying drawings. As shown in FIG.
Comprises a base material 2 and a heat bonding layer 3. For the thermal bonding layer 3, a blend resin comprising 15 to 87% by weight of a linear low density polyethylene resin and 13 to 85% by weight of a polybutene-1 resin is used. Out of this composition range, that is, when the linear low density polyethylene resin is less than 15% by weight or 8%
If the amount exceeds 7% by weight, good adhesive strength and properties cannot be obtained, which causes a problem in easy opening. As a particularly preferred range, the linear low-density polyethylene resin is 50 to 8
It is preferred to use a blend resin consisting of 7% by weight and 13-50% by weight of polybutene-1 resin. To form such a blended resin into a film, a known method may be used. For example, a film having a thickness of about 5 μm to 1 mm may be formed by an inflation extruder. At this time, one-sided corona treatment can be performed at the same time. In order to produce a laminate 1 of two or more layers of this film and another substrate 2 or the like, it can be produced by a known method, for example, by a method such as dry lamination with another synthetic resin film, co-extrusion, coating or the like. Can be laminated. Known resins such as PP, PE, PET, PC, and PVC can be used as the resin to be laminated, and one or more kinds of vapor-deposited films of silica, alumina, titania, aluminum, and the like may be further laminated. When used for a lid material or a bag, papers such as coated paper, recycled paper, kraft paper, roll paper, woodfree paper, and metal foils such as aluminum, copper, and stainless steel can be further laminated. However, when used for a lid material or a bag, the total thickness is preferably 20 to 100 μm. If the total thickness is less than 20 μm, the strength and barrier properties are poor. Is disadvantageous in terms of Further, printing or the like may be applied to an arbitrary position on the laminated body 1 without any problem, and the operation can be appropriately performed as needed.
【０００８】一方、前記積層体１を成形容器として使用
する場合には、積層体１の合計厚みは、５０μｍ〜２ｍ
ｍ程度とすればよい。５０μｍ未満では、容器としての
強度に乏しく、２ｍｍを越える場合には、成形性やコス
トの点で不利となる。容器成形の方法は、公知のインジ
ェクション法、ブロー成形、真空成形法等が採用でき
る。特に真空成形による方法が好ましい。容器を作製す
る場合には、前記熱接着層３を内面にする必要があり、
外面にした場合には、易開封性や悪戯防止機能が得られ
ない。すなわち、前記積層体１から作製した蓋材の熱接
着層３面と容器のフランジ部（内面に相当）とを熱接着
して包装体とすればよい。熱接着温度は、ブレンド樹脂
の組成にもよるが、１４０℃〜２２０℃程度が好まし
い。On the other hand, when the laminate 1 is used as a molding container, the total thickness of the laminate 1 is 50 μm to 2 m.
m. If it is less than 50 μm, the strength as a container is poor, and if it exceeds 2 mm, it is disadvantageous in terms of moldability and cost. As a method for molding the container, a known injection method, blow molding, vacuum molding, or the like can be employed. Particularly, a method by vacuum forming is preferable. When manufacturing a container, it is necessary to make the heat bonding layer 3 an inner surface,
When it is on the outer surface, the easy opening property and the mischief prevention function cannot be obtained. In other words, the package may be formed by thermally bonding the surface of the heat bonding layer 3 of the lid member made from the laminate 1 and the flange portion (corresponding to the inner surface) of the container. The heat bonding temperature is preferably about 140 ° C. to 220 ° C., although it depends on the composition of the blended resin.
【０００９】この発明の包装体には、袋状のものも含ま
れ、前記積層体１を袋にする場合においても前記積層体
１の熱接着層３の面を互に熱接着すればよい。袋の種類
は特に限定されるものではなく、平袋、角袋、自立袋、
ガゼットタイプ、ピロータイプ、スティックタイプ等の
公知の形状の袋に適用できる。The package of the present invention also includes a bag-shaped package. Even when the laminate 1 is formed into a bag, the surfaces of the heat bonding layers 3 of the laminate 1 may be thermally bonded to each other. The type of the bag is not particularly limited, and a flat bag, a square bag, a freestanding bag,
The present invention can be applied to bags having a known shape such as a gusset type, a pillow type, and a stick type.
【００１０】図２は包装体の基本的な断面構造の１例を
示す図であり、図３はその応用例である。すなわち図２
の例では、包装体は透明であり、内容物の透視が可能で
あり、生鮮食料品等の包装に適する。この場合フランジ
部も開封前は透明であるが、開封後は白濁化するため、
悪戯等により開封した場合は一目瞭然である。図３の例
は、フランジ部のみを透明のままにし、その他の部分を
アルミニウム箔２ａあるいは着色層２ｂで遮光したもの
である。特に遮光や長期保存の必要のある飲食物や電子
部品等の包装に好適である。この着色層２ｂが、遮光を
目的とする場合には、カーボンブラックを含有した塗料
（インキ）や樹脂組成物、紫外線を遮断する目的には、
酸化チタンを含有した塗料（インキ）あるいは樹脂組成
物等を公知の方法で積層または塗布すればよい。もちろ
んカーボンブラックと酸化チタンを混合して用いること
もできる。なお図３の場合、外面樹脂層２ｃ、アルミニ
ウム箔２ａ又は着色層２ｂ、中間樹脂層２ｄが基材２に
なる。FIG. 2 is a view showing an example of a basic sectional structure of a package, and FIG. 3 is an application example thereof. That is, FIG.
In the example, the package is transparent, the contents can be seen through, and is suitable for packaging of fresh foods and the like. In this case, the flange is also transparent before opening, but becomes cloudy after opening,
When opened by mischief etc., it is obvious. In the example of FIG. 3, only the flange portion is kept transparent, and the other portions are shielded from light by the aluminum foil 2a or the colored layer 2b. In particular, it is suitable for packaging of foods and drinks, electronic parts, and the like that need to be shielded from light or stored for a long time. When the colored layer 2b is to shield light, a coating (ink) or a resin composition containing carbon black, or for the purpose of blocking ultraviolet rays,
A paint (ink) or a resin composition containing titanium oxide may be laminated or applied by a known method. Of course, a mixture of carbon black and titanium oxide can also be used. In the case of FIG. 3, the outer surface resin layer 2c, the aluminum foil 2a or the colored layer 2b, and the intermediate resin layer 2d become the base material 2.
【００１１】次に実施例と比較例を示しこの発明の効果
をより明確にする。Next, examples and comparative examples will be shown to further clarify the effects of the present invention.
【００１２】[0012]
【実施例１】メルトインデックス１ｄｇ／ｍｉｎ、密度
０．９２３ｇ／ｃｍ3 からなるリニヤー低密度ポリエチ
レン樹脂（商品名：ＣＳ８０５３．住友化学工業株式会
社製）とメルトインデックス０．４ｄｇ／ｍｉｎ、密度
０．９１５ｇ／ｃｍ3 からなるポリブテン−１樹脂（商
品名：シェルポリブチレン０１１０：シェルジャパン株
式会社製）の配合比率がリニヤー低密度ポリエチレン樹
脂８７重量％、ポリブテン−１樹脂１３重量％の配合樹
脂を用いて、インフレーション押し出し機によって、片
面コロナ処理をしながら３０μｍのフィルムに成膜した
後、０．３ｍｍのＣＰＰフィルム（出光石油化学株式会
社製ＦＧ−１００タイプ）とを二液硬化ウレタン系接着
剤（商品名：タケラックＡ９１０／タケネートＡ−３武
田薬品工業株式会社製、塗布量（以下、すべて乾燥後重
量による）：４〜５ｇ／ｍ2 、エージング時間：４０℃
×７２時間）を介して貼りあわせることによって容器用
の原反を製作し、加熱真空成型機によって縦６０ｍｍ横
１２０ｍｍ深さ３０ｍｍ（概略を図４に示す）の容器を
製作した。フランジ部分の幅を１５ｍｍ幅とした。さら
に上記容器用蓋材として上記で製作した３０μｍの熱接
着フィルムのコロナ処理面と２５μｍのＰＥＴ（商品
名：東洋紡エステルフィルムＥ５１０２、東洋紡績株式
会社製）フィルムのコロナ処理面とを二液硬化ウレタン
系接着剤（商品名：タケラックＡ９１０／タケネートＡ
−３武田薬品工業株式会社製、塗布量：４〜５ｇ／
ｍ2 、エージング時間：４０℃×７２時間）を介して貼
りあわせする事によって蓋材を製作した。Example 1 A linear low-density polyethylene resin (trade name: CS8053, manufactured by Sumitomo Chemical Co., Ltd.) having a melt index of 1 dg / min and a density of 0.923 g / cm 3 , a melt index of 0.4 dg / min and a density of 0. A blending ratio of a polybutene-1 resin of 915 g / cm 3 (trade name: Shell Polybutylene 0110: manufactured by Shell Japan KK) is 87% by weight of a linear low density polyethylene resin and 13% by weight of a polybutene-1 resin. Then, after being formed into a 30-μm film while being subjected to a one-sided corona treatment by an inflation extruder, a 0.3-mm CPP film (FG-100 type manufactured by Idemitsu Petrochemical Co., Ltd.) and a two-component cured urethane-based adhesive ( Product name: Takerack A910 / Takenate A-3 Takeda Pharmaceutical Co., Ltd. , The coating amount (hereinafter, all by weight after drying): 4~5g / m 2, aging time: 40 ° C.
(× 72 hours) to produce a raw material for a container, and a container having a length of 60 mm, a width of 120 mm and a depth of 30 mm (schematically shown in FIG. 4) was manufactured by a heating vacuum molding machine. The width of the flange portion was 15 mm. Further, the corona-treated surface of the heat-bonded film of 30 μm manufactured above and the corona-treated surface of a PET film (trade name: Toyobo Ester Film E5102, manufactured by Toyobo Co., Ltd.) as the lid material for the container are two-component cured urethane. Adhesive (trade name: Takerac A910 / Takenate A)
-3 Takeda Pharmaceutical Co., Ltd., coating amount: 4 to 5 g /
m 2 , aging time: 40 ° C. × 72 hours) to produce a lid material.
【００１３】次に上記により製作した容器に８０℃に加
温したチーズを満杯充填した後、上記の蓋材を内容物の
入った容器に単動式ヒートシーラー（１４０℃〜２２０
℃×３ｋｇ／ｃｍ2 ×１秒）によって熱接着した。それ
を１２１℃、３０分間のレトルト釜でレトルト殺菌した
包装体も同時に製作した。続いてフランジ部分の幅を１
０ｍｍ幅にポンスを利用し打ち抜きカットした。Next, after the container prepared above is filled with the cheese heated to 80 ° C., the lid is placed in a container containing the contents in a single-action heat sealer (140 ° C. to 220 ° C.).
(° C. × 3 kg / cm 2 × 1 second). At the same time, a package was sterilized in a retort pot at 121 ° C. for 30 minutes to produce a package. Next, set the width of the flange
It was punched and cut to a width of 0 mm using a ponse.
【００１４】上記により製作した包装体を室温２０℃、
相対湿度６５％の恒温恒湿室にて一週間後、二週間後、
一ヶ月後、三ヶ月後の包装体の開封剥離強度を測定する
ために、フランジ部分の長手方向に対し９０度の方向に
１５ｍｍ幅に裁断し、その剥離強度をオートグラフ（株
式会社島津製作所製）によって９０度剥離の剥離強度を
測定したところ、大きな変化は無く、１８０℃での熱接
着後の包装体に於いて剥離強度が４００〜４１０ｇ／１
５ｍｍ幅とバラツキが非常に少なく、非常に滑らかな剥
離感が得られ満足のいく開封剥離感が得られた。同時に
レトルト殺菌したものもレトルト殺菌前とほぼ同レベル
の剥離強度が得られた。さらに剥離面の状態を観察した
が剥離前の透明色が白色に変化し歴然と白濁化している
ことが判った。また長期保存において内容物の黴、腐敗
等の不具合は認められなかった。The package manufactured as described above is kept at a room temperature of 20 ° C.
After one week and two weeks in a constant temperature and humidity room with a relative humidity of 65%,
In order to measure the peel strength of the package after one month and three months, the package is cut to a width of 15 mm in a direction 90 degrees to the longitudinal direction of the flange portion, and the peel strength is measured by an autograph (manufactured by Shimadzu Corporation). ), There was no significant change, and the peel strength of the package after heat bonding at 180 ° C. was 400 to 410 g / 1.
The dispersion was extremely small with a width of 5 mm, a very smooth peeling feeling was obtained, and a satisfactory opening peeling feeling was obtained. At the same time, the retort-sterilized product also had almost the same peel strength as before retort-sterilization. Further, the state of the peeled surface was observed, and it was found that the transparent color before peeling changed to white and was clearly clouded. No defects such as mold and decay of the contents were observed during long-term storage.
【００１５】[0015]
【実施例２】共押し出しインフレーション押し出し機に
よって、二種三層の樹脂構成を製作するため、最内層樹
脂として、リニヤー低密度ポリエチレン樹脂（商品名：
ＣＳ８０５３．住友化学工業株式会社製）とポリブテン
−１樹脂の配合比率がリニアー低密度ポリエチレン樹脂
７５重量％、ポリブテン−１樹脂（商品名：シェルポリ
ブチレン０１１０：シェルジャパン株式会社製）２５重
量％の配合樹脂層を５μｍ、中間層に１５μｍリニヤー
低密度ポリエチレン樹脂（商品名：ＣＳ８０５３．住友
化学工業株式会社製）、最外層に中間層と同様の１５μ
ｍリニアー低密度ポリエチレン樹脂層（商品名：ＣＳ８
０５３．住友化学工業株式会社製）を配し、最外層のリ
ニアー低密度ポリエチレン樹脂面に片面コロナ処理をし
ながら共押し出しフィルム（全厚み３５μｍ）を成膜し
た後、共押し出しフィルム最外層のリニアー低密度ポリ
エチレン樹脂層と０．４ｍｍのＣＰＰフィルム（出光石
油化学株式会社製ＦＧ−１００タイプ）とを二液硬化ウ
レタン系接着剤（商品名：タケラックＡ９１０／タケネ
ートＡ−３武田薬品工業株式会社製、塗布量：４〜５ｇ
／ｍ2 、エージング時間：４０℃×７２時間）を介して
貼りあわせすることによって容器用の原反を製作し、加
熱真空成型機によって縦６０ｍｍ横１２０ｍｍ深さ３０
ｍｍの容器を製作した（図４）。フランジ部分の幅を１
５ｍｍ幅とした。さらに上記容器用蓋材として上記製作
した３５μｍの共押し出しフィルムのリニアー低密度ポ
リエチレン樹脂のコロナ処理面と２５μｍのＰＥＴフィ
ルム（商品名：東洋紡エステルフィルムＥ５１０２、東
洋紡績株式会社製）のコロナ処理面とを二液硬化ウレタ
ン系接着剤（商品名：タケラックＡ９１０／タケネート
Ａ−３武田薬品工業株式会社製、塗布量：４〜５ｇ／ｍ
2 、エージング時間：４０℃×７２時間）を介して貼り
あわせすることによって蓋材を製作した。次に上記によ
り製作した容器に８０℃に加温したプロセスチーズを満
杯充填した後、上記により製作した蓋材を内容物の入っ
た容器に単動式ヒートシーラー（１４０℃〜２２０℃×
３ｋｇ／ｃｍ2 ×１秒）によって熱接着した。それを１
２１℃、３０分間のレトルト釜でレトルト殺菌した包装
体も同時に製作した。続いてフランジ部分の幅を１０ｍ
ｍ幅にポンスを利用し打ち抜きカットした。Embodiment 2 A co-extrusion inflation extruder is used to produce a two-layer, three-layer resin structure. As the innermost layer resin, a linear low-density polyethylene resin (trade name:
CS8053. Sumitomo Chemical Co., Ltd.) and polybutene-1 resin in a blending ratio of 75% by weight of a linear low density polyethylene resin and 25% by weight of a polybutene-1 resin (trade name: Shell Polybutylene 0110: Shell Japan Ltd.) The layer is 5 μm, the intermediate layer is a 15 μm linear low-density polyethylene resin (trade name: CS8053, manufactured by Sumitomo Chemical Co., Ltd.), and the outermost layer is the same 15 μm as the intermediate layer.
m linear low density polyethylene resin layer (trade name: CS8
053. Sumitomo Chemical Co., Ltd.), a co-extruded film (35 μm in total thickness) is formed on the outermost layer of the low-density polyethylene resin surface while performing corona treatment on one side, and then the linear low-density of the outermost layer of the co-extruded film is formed. A polyethylene resin layer and a 0.4 mm CPP film (FG-100 type, manufactured by Idemitsu Petrochemical Co., Ltd.) are coated with a two-part cured urethane adhesive (trade name: Takerac A910 / Takenate A-3, manufactured by Takeda Pharmaceutical Co., Ltd.). Amount: 4-5g
/ M 2 , aging time: 40 ° C. × 72 hours) to produce a raw material for a container, and a heating vacuum forming machine is used to form a 60 mm long, 120 mm deep and 30 mm deep.
mm was manufactured (FIG. 4). Flange width is 1
The width was 5 mm. Further, a corona-treated surface of a linear low-density polyethylene resin of the 35 μm co-extruded film and a corona-treated surface of a 25 μm PET film (trade name: Toyobo Ester Film E5102, manufactured by Toyobo Co., Ltd.) as the lid material for the container. With a two-component cured urethane adhesive (trade name: Takerac A910 / Takenate A-3, manufactured by Takeda Pharmaceutical Co., Ltd., coating amount: 4 to 5 g / m)
2. Aging time: 40 ° C. × 72 hours) to produce a lid material. Next, the container manufactured as described above is fully filled with the process cheese heated to 80 ° C., and the lid material manufactured as described above is placed in the container containing the contents in a single-action heat sealer (140 ° C. to 220 ° C. ×
(3 kg / cm 2 × 1 second). 1
A package retort-sterilized in a retort pot at 21 ° C. for 30 minutes was also manufactured at the same time. Then, the width of the flange part is 10m
It was punched and cut to a width of m using a ponse.
【００１６】上記により製作した包装体を室温２０℃、
相対湿度６５％の恒温恒湿室にて一週間後、二週間後、
一ヶ月後、三ヶ月後の包装体の開封剥離強度を測定する
ために、フランジ部分の長手方向に対し９０度の方向に
１５ｍｍ幅に裁断し、その剥離強度をオートグラフ（株
式会社島津製作所製）によって９０度剥離の剥離強度を
測定したところ、大きな変化は無く、１８０℃での熱接
着後の包装体に於いて、３９０〜４２０ｇ／１５ｍｍ幅
とバラツキが非常に少なく、非常に滑らかな剥離感が得
られ満足のいく開封剥離感が得られた。レトルト殺菌後
のものもレトルト殺菌前とほぼ同レベルの剥離強度が得
られた。さらに剥離面の状態を観察したが剥離前の透明
色が白色に変化し歴然と白濁化していることが判った。
また長期保存において内容物の黴、腐敗等の不具合は認
められなかった。The package manufactured as described above is kept at a room temperature of 20 ° C.
After one week and two weeks in a constant temperature and humidity room with a relative humidity of 65%,
In order to measure the peel strength of the package after one month and three months, the package is cut to a width of 15 mm in a direction 90 degrees to the longitudinal direction of the flange portion, and the peel strength is measured by an autograph (manufactured by Shimadzu Corporation). ), The peel strength at 90 ° peeling was not significantly changed. In the package after heat bonding at 180 ° C., the dispersion was very small, 390 to 420 g / 15 mm width, and very smooth peeling. The feeling was obtained, and a satisfactory opening peeling feeling was obtained. The peel strength after retort sterilization was almost the same level as before retort sterilization. Further, the state of the peeled surface was observed, and it was found that the transparent color before peeling changed to white and was clearly clouded.
No defects such as mold and decay of the contents were observed during long-term storage.
【００１７】[0017]
【実施例３】共押し出しインフレーション押し出し機に
よって、４種５層の樹脂構成を製作するため、最内層樹
脂として、リニアー低密度ポリエチレン樹脂（商品名：
ＣＳ８０５３．住友化学工業株式会社製）とポリブテン
−１樹脂（商品名：シェルポリブチレン０１１０：シェ
ルジャパン株式会社製）の配合比率がリニアー低密度ポ
リエチレン樹脂８０重量％、ポリブテン−１樹脂２０重
量％の配合樹脂層を１０μｍ、中間層に１０μｍＥＶＯ
Ｈ（エチレン−ビニルアルコール共重合体樹脂，商品
名：エバールＥＰ−Ｈ１０１．株式会社クラレ製）、最
外層に１５μｍリニヤー低密度ポリエチレン樹脂層（商
品名：ＣＳ８０５３．住友化学工業株式会社製）を配し
中間層の１０μｍＥＶＯＨ樹脂両サイドの接着樹脂層と
して各、５μｍ接着性ポリオレフィン樹脂（商品名：ア
ドマーＱＦ５００．三井化学株式会社製）を同時押し出
して、最外層のリニアー低密度ポリエチレン樹脂面に片
面コロナ処理をしながら共押し出しフィルム（全厚み４
５μｍ）を成膜した後、共押し出しフィルム最外層のリ
ニヤー低密度ポリエチレン樹脂層と０．４ｍｍのＣＰＰ
フィルム（出光石油化学株式会社製ＦＧ−１００タイ
プ）とを二液硬化ウレタン系接着剤（商品名：タケラッ
クＡ９１０／タケネートＡ−３武田薬品工業株式会社
製、塗布量：４〜５ｇ／ｍ2 、エージング時間：４０℃
×７２時間）を介して貼りあわせすることによって容器
用の原反を製作し、加熱真空成型機によって縦６０ｍｍ
横１２０ｍｍ深さ３０ｍｍの容器を製作した（図４）。
フランジ部分の幅を１５ｍｍ幅とした。さらに上記容器
用蓋材として上記により製作した４５μｍの共押し出し
フィルムのリニアー低密度ポリエチレン樹脂のコロナ処
理面と２５μｍのＰＥＴフィルム（商品名：東洋紡エス
テルフィルムＥ５１０２、東洋紡績株式会社製）のコロ
ナ処理面とを二液硬化ウレタン系接着剤を介して貼りあ
わせすることによって蓋材を製作した。次に上記により
製作した容器に８０℃に加温したプロセスチーズを満杯
充填した後、上記製作の蓋材を内容物の入った容器に単
動式ヒートシーラー（１４０℃〜２２０℃×３ｋｇ／ｃ
ｍ2 ×１秒）によって熱接着した。同時にそれを１２１
℃、３０分間のレトルト釜でレトルト殺菌した包装体も
製作した。続いてフランジ部分の幅を１０ｍｍ幅にポン
スを利用し打ち抜きカットした。Embodiment 3 A co-extrusion inflation extruder is used to produce a resin composition of four types and five layers. As the innermost layer resin, a linear low density polyethylene resin (trade name:
CS8053. Sumitomo Chemical Co., Ltd.) and polybutene-1 resin (trade name: Shell Polybutylene 0110: Shell Japan Co., Ltd.) in which the blending ratio is 80% by weight of a linear low-density polyethylene resin and 20% by weight of a polybutene-1 resin. 10 μm layer, 10 μm EVO for intermediate layer
H (ethylene-vinyl alcohol copolymer resin, trade name: EVAL EP-H101, manufactured by Kuraray Co., Ltd.), and a 15 μm linear low-density polyethylene resin layer (trade name: CS8053, manufactured by Sumitomo Chemical Co., Ltd.) as the outermost layer. A 5 μm adhesive polyolefin resin (trade name: Admer QF500, manufactured by Mitsui Chemicals, Inc.) is simultaneously extruded as an adhesive resin layer on both sides of the 10 μm EVOH resin of the intermediate layer, and a single-sided corona is applied to the linear low-density polyethylene resin surface of the outermost layer. Co-extruded film while processing (total thickness 4
5 μm), a linear low-density polyethylene resin layer as the outermost layer of the co-extruded film and a 0.4 mm CPP
A film (FG-100 type manufactured by Idemitsu Petrochemical Co., Ltd.) and a two-part cured urethane-based adhesive (trade name: Takerac A910 / Takenate A-3 manufactured by Takeda Pharmaceutical Co., Ltd., coating amount: 4 to 5 g / m 2 , Aging time: 40 ° C
× 72 hours) to produce a raw material for a container, and a heating vacuum molding machine was used to produce a 60 mm long raw material.
A container having a width of 120 mm and a depth of 30 mm was manufactured (FIG. 4).
The width of the flange portion was 15 mm. Further, a corona-treated surface of a linear low-density polyethylene resin of a 45 μm co-extruded film and a corona-treated surface of a 25 μm PET film (trade name: Toyobo ester film E5102, manufactured by Toyobo Co., Ltd.) as the lid material for the container. Were bonded via a two-component cured urethane-based adhesive to produce a lid material. Next, the container manufactured as described above is fully filled with the processed cheese heated to 80 ° C., and the lid material manufactured above is placed in the container containing the contents in a single-acting heat sealer (140 ° C. to 220 ° C. × 3 kg / c).
(m 2 × 1 second). At the same time 121
A package retort-sterilized in a retort pot at 30 ° C. for 30 minutes was also manufactured. Subsequently, the flange portion was punched and cut to a width of 10 mm using a ponse.
【００１８】上記により製作した包装体を室温２０℃、
相対湿度６５％の恒温恒湿室にて一週間後、二週間後、
一ヶ月後、三ヶ月後の包装体の開封剥離強度を測定する
ために、フランジ部分の長手方向に対し９０度の方向に
１５ｍｍ幅に裁断し、その剥離強度をオートグラフ（株
式会社島津製作所製）によって９０度剥離の剥離強度を
測定したところ、大きな変化は無く、１８０℃での熱接
着後の包装体に於いて、３８０〜４１０ｇ／１５ｍｍ幅
とバラツキが非常に少なく、非常に滑らかな剥離感が得
られ満足のいく開封剥離感が得られた。レトルト殺菌後
のものにおいてもレトルト殺菌前とほぼ同レベルの剥離
強度が得られた。さらに剥離面の状態を観察したが剥離
前の透明色が白色に変化し歴然と白濁化していることが
判った。また長期保存において内容物の黴、腐敗等の不
具合は認められなかった。The package manufactured as described above is kept at a room temperature of 20 ° C.
After one week and two weeks in a constant temperature and humidity room with a relative humidity of 65%,
In order to measure the peel strength of the package after one month and three months, the package is cut to a width of 15 mm in a direction 90 degrees to the longitudinal direction of the flange portion, and the peel strength is measured by an autograph (manufactured by Shimadzu Corporation). )), The peel strength at 90 ° peeling was not significantly changed. In the package after heat bonding at 180 ° C., the dispersion was very small, 380 to 410 g / 15 mm width, and very smooth peeling. The feeling was obtained, and a satisfactory opening peeling feeling was obtained. The peel strength after retort sterilization was almost the same level as before retort sterilization. Further, the state of the peeled surface was observed, and it was found that the transparent color before peeling changed to white and was clearly clouded. No defects such as mold and decay of the contents were observed during long-term storage.
【００１９】[0019]
【実施例４】共押し出しインフレーション押し出し機に
よって、４種５層の樹脂構成を製作するため、最内層樹
脂として、リニヤー低密度ポリエチレン樹脂（商品名：
ＣＳ８０５３．住友化学工業株式会社製）とポリブテン
−１樹脂の配合比率がリニアー低密度ポリエチレン樹脂
５０重量％、ポリブテン−１（商品名：シェルポリブチ
レン０１１０：シェルジャパン株式会社製）樹脂５０重
量％の配合樹脂層を１０μｍ、中間層に１０μｍＥＶＯ
Ｈ（商品名：エバールＥＰ−Ｈ１０１．株式会社クラレ
製）、最外層に０．４ｍｍポリプロピレン樹脂層（商品
名：住友ノーブレンＦＨ１０１６．住友化学工業株式会
社製）を配し、中間層の１０μｍＥＶＯＨ樹脂両サイド
の接着樹脂層として各、５μｍ接着性ポリオレフィン樹
脂（商品名：アドマーＱＦ５００．三井化学株式会社
製）を同時押し出して成膜し容器用の原反を製作し、加
熱真空成型機によって縦６０ｍｍ横１２０ｍｍ深さ３０
ｍｍの容器を製作した（図４）。フランジ部分の幅を１
５ｍｍ幅とした。さらに上記容器用蓋材として共押し出
しインフレーション押し出し機によって、２種３層の樹
脂構成を製作するため、リニアー低密度ポリエチレン樹
脂（商品名：ＣＳ８０５３．住友化学工業株式会社製）
とポリブテン−樹脂の配合比率をリニアー低密度ポリエ
チレン樹脂５０重量％、ポリブテン−１樹脂（商品名：
シェルポリブチレン０１１０：シェルジャパン株式会社
製）５０重量％の配合樹脂層を５μｍ、中間層に１５μ
ｍリニアー低密度ポリエチレン樹脂（商品名：ＣＳ８０
５３．住友化学工業株式会社製）、最外層に中間層と同
様の１５μｍリニアー低密度ポリエチレン樹脂層（商品
名：ＣＳ８０５３．住友化学工業株式会社製）を配し、
最外層のリニアー低密度ポリエチレン樹脂面に片面コロ
ナ処理をしながら共押し出しフィルム（全厚み３５μ
ｍ）を成膜した。さらに、上記製作した３５μｍの共押
し出しフィルムのリニアー低密度ポリエチレン樹脂のコ
ロナ処理面と２５μｍのＰＥＴフィルム（商品名：東洋
紡エステルフィルムＥ５１０２、東洋紡績株式会社製）
のコロナ処理面とを二液硬化ウレタン系接着剤（商品
名：タケラックＡ９１０／タケネートＡ−３武田薬品工
業株式会社製、塗布量：４〜５ｇ／ｍ2 、エージング時
間：４０℃×７２時間）を介して貼りあわせすることに
よって蓋材を製作した。次に上記により製作した容器に
プロセスチーズを満杯充填した後、上記製作の蓋材を内
容物の入った容器に単動式ヒートシーラー（１４０℃〜
２２０℃×３ｋｇ／ｃｍ2 ×１秒）によって熱接着し
た。それを１２１℃、３０分間のレトルト釜でレトルト
殺菌した包装体も製作した。続いてフランジ部分の幅を
１０ｍｍ幅にポンスを利用し打ち抜きカットした。Embodiment 4 A co-extrusion inflation extruder is used to produce a resin composition of four types and five layers. As the innermost layer resin, a linear low density polyethylene resin (trade name:
CS8053. Sumitomo Chemical Co., Ltd.) and polybutene-1 resin in a blending ratio of 50% by weight linear low-density polyethylene resin and 50% by weight of polybutene-1 (trade name: Shell Polybutylene 0110: Shell Japan Ltd.) resin 10 μm layer, 10 μm EVO for intermediate layer
H (trade name: EVAL EP-H101, manufactured by Kuraray Co., Ltd.), a 0.4 mm polypropylene resin layer (trade name: Sumitomo Noblen FH1016, manufactured by Sumitomo Chemical Co., Ltd.) on the outermost layer, and a 10 μm EVOH resin in the middle layer. A 5 μm adhesive polyolefin resin (trade name: Admer QF500; manufactured by Mitsui Chemicals, Inc.) was simultaneously extruded as a side adhesive resin layer to form a film, and a raw material for a container was produced. 120mm depth 30
mm was manufactured (FIG. 4). Flange width is 1
The width was 5 mm. Furthermore, in order to produce a resin composition of two kinds and three layers by a co-extrusion inflation extruder as a lid material for the container, a linear low-density polyethylene resin (trade name: CS8053, manufactured by Sumitomo Chemical Co., Ltd.)
And low-density polyethylene resin 50% by weight, polybutene-1 resin (trade name:
Shell polybutylene 0110 (manufactured by Shell Japan Co., Ltd.).
m linear low density polyethylene resin (trade name: CS80
53. Sumitomo Chemical Co., Ltd.), a 15 μm linear low-density polyethylene resin layer (trade name: CS8053, manufactured by Sumitomo Chemical Co., Ltd.) as the outermost layer,
Co-extruded film (35 μm in total thickness) on the outermost layer of linear low-density polyethylene resin while corona-treated on one side
m) was formed. Furthermore, the corona-treated surface of the linear low-density polyethylene resin of the co-extruded film of 35 μm produced above and a PET film of 25 μm (trade name: Toyobo ester film E5102, manufactured by Toyobo Co., Ltd.)
With a corona-treated surface of a two-component curable urethane adhesive (trade name: Takerac A910 / Takenate A-3, manufactured by Takeda Pharmaceutical Co., Ltd., coating amount: 4 to 5 g / m 2 , aging time: 40 ° C. × 72 hours) To produce a lid material. Next, after the container manufactured as described above is fully filled with the process cheese, the lid material manufactured as described above is placed in the container containing the contents in a single-acting heat sealer (140 ° C. or higher).
(220 ° C. × 3 kg / cm 2 × 1 second). A package was prepared by sterilizing it in a retort pot at 121 ° C. for 30 minutes. Subsequently, the flange portion was punched and cut to a width of 10 mm using a ponse.
【００２０】上記により製作した包装体を室温２０℃、
相対湿度６５％の恒温恒湿室にて一週間後、二週間後、
一ヶ月後、三ヶ月後の包装体の開封剥離強度を測定する
ためにフランジ部分の長手方向に対し９０度の方向に１
５ｍｍ幅に裁断し、その剥離強度をオートグラフ（株式
会社島津製作所製）によって９０度剥離の剥離強度を測
定したところ、大きな変化は無く、１８０℃での熱接着
後の包装体において、４００〜４２０ｇ／１５ｍｍ幅と
バラツキが非常に少なく、非常に滑らかな剥離感が得ら
れ満足のいく開封剥離感が得られた。レトルト殺菌後の
ものもレトルト殺菌前とほぼ同レベルの剥離強度が得ら
れた。さらに剥離面の状態を観察したが剥離前の透明色
が白色に変化し歴然と白濁化していることが判った。The package manufactured as described above is kept at a room temperature of 20 ° C.
After one week and two weeks in a constant temperature and humidity room with a relative humidity of 65%,
After one month, three months later, in order to measure the peel strength of the package, one direction is set at 90 degrees to the longitudinal direction of the flange portion.
The sheet was cut to a width of 5 mm, and its peel strength was measured by an autograph (manufactured by Shimadzu Corporation) at 90 ° peel strength. As a result, there was no significant change. The dispersion was very small with a width of 420 g / 15 mm, a very smooth peeling feeling was obtained, and a satisfactory opening peeling feeling was obtained. The peel strength after retort sterilization was almost the same level as before retort sterilization. Further, the state of the peeled surface was observed, and it was found that the transparent color before peeling changed to white and was clearly clouded.
【００２１】[0021]
【実施例５】共押し出しインフレーション押し出し機に
よって、４種５層の樹脂構成を製作するため、最内層樹
脂として、リニアー低密度ポリエチレン樹脂（商品名：
ＣＳ８０５３．住友化学工業株式会社製）とポリブテン
−１樹脂の配合比率がリニアー低密度ポリエチレン樹脂
５０重量％、ポリブテン−１（商品名：シェルポリブチ
レン０１１０：シェルジャパン株式会社製）樹脂５０重
量％の配合樹脂層を１０μｍ、中間層に１０μｍＥＶＯ
Ｈ（商品名：エバールＥＰ−Ｈ１０１．株式会社クラレ
製）、最外層に０．４ｍｍポリプロピレン樹脂層（商品
名：住友ノーブレンＦＨ１０１６．住友化学工業株式会
社製）を配し、中間層の１０μｍＥＶＯＨ樹脂両サイド
の接着樹脂層として各５μｍ接着性ポリオレフィン樹脂
（商品名：アドマーＱＦ５００．三井化学株式会社製）
を同時押し出して成膜し容器用の原反を製作し、加熱真
空成型機によって縦６０ｍｍ横１２０ｍｍ深さ３０ｍｍ
の容器を製作した（図４）。フランジ部分の幅を１５ｍ
ｍ幅とした。さらに上記容器用蓋材として共押し出しイ
ンフレーション押し出し機によって、２種３層の樹脂構
成を製作するため、リニアー低密度ポリエチレン樹脂
（商品名：ＣＳ８０５３．住友化学工業株式会社製）と
ポリブテン−１樹脂の配合比率をリニアー低密度ポリエ
チレン樹脂２５重量％、ポリブテン−１樹脂（商品名：
シェルポリブチレン０１１０：シェルジャパン株式会社
製）７５重量％の配合樹脂層を５μｍ、中間層に１５μ
ｍリニアー低密度ポリエチレン樹脂（商品名：ＣＳ８０
５３．住友化学工業株式会社製）、最外層に中間層と同
様の１５μｍリニアー低密度ポリエチレン樹脂（商品
名：ＣＳ８０５３．住友化学工業株式会社製）を配し、
最外層のリニアー低密度ポリエチレン樹脂面に片面コロ
ナ処理をしながら共押し出しフィルム（全厚み３５μ
ｍ）を成膜した。さらに、上記により製作した３５μｍ
の共押し出しフィルムのリニアー低密度ポリエチレン樹
脂のコロナ処理面と２５μｍのＰＥＴフィルム（商品
名：東洋紡エステルフィルムＥ５１０２、東洋紡績株式
会社製）のコロナ処理面とを二液硬化ウレタン系接着剤
（商品名：タケラックＡ９１０／タケネートＡ−３武田
薬品工業株式会社製、塗布量：４〜５ｇ／ｍ2 、エージ
ング時間：４０℃×７２時間）を介して貼りあわせする
ことによって蓋材を製作した。次に上記により製作した
容器に８０℃に加温したプロセスチーズを満杯充填した
後、上記製作の蓋材を内容物の入った容器に単動式ヒー
トシーラー（１４０℃〜２２０℃×３ｋｇ／ｃｍ2 ×１
秒）によって熱接着した。それを１２１℃、３０分間の
レトルト釜でレトルト殺菌した包装体も製作した。続い
てフランジ部分の幅を１０ｍｍ幅にポンスを利用し打ち
抜きカットした。Embodiment 5 A co-extrusion inflation extruder is used to produce a resin composition of four types and five layers. As the innermost layer resin, a linear low density polyethylene resin (trade name:
CS8053. Sumitomo Chemical Co., Ltd.) and polybutene-1 resin in a blending ratio of 50% by weight linear low-density polyethylene resin and 50% by weight of polybutene-1 (trade name: Shell Polybutylene 0110: Shell Japan Ltd.) resin 10 μm layer, 10 μm EVO for intermediate layer
H (trade name: EVAL EP-H101, manufactured by Kuraray Co., Ltd.), a 0.4 mm polypropylene resin layer (trade name: Sumitomo Noblen FH1016, manufactured by Sumitomo Chemical Co., Ltd.) on the outermost layer, and a 10 μm EVOH resin in the middle layer. 5 μm adhesive polyolefin resin (trade name: ADMER QF500, manufactured by Mitsui Chemicals, Inc.) as the side adhesive resin layer
Are simultaneously extruded to form a film, and a raw material for a container is manufactured.
(FIG. 4). Flange width is 15m
m width. Furthermore, in order to produce a resin composition of two types and three layers by a co-extrusion inflation extruder as a lid material for the container, a linear low-density polyethylene resin (trade name: CS8053; manufactured by Sumitomo Chemical Co., Ltd.) and a polybutene-1 resin are used. The compounding ratio was 25% by weight of linear low density polyethylene resin and polybutene-1 resin (trade name:
Shell polybutylene 0110: manufactured by Shell Japan Co., Ltd.)
m linear low density polyethylene resin (trade name: CS80
53. Sumitomo Chemical Co., Ltd.) and the same 15 μm linear low-density polyethylene resin (trade name: CS8053; Sumitomo Chemical Co., Ltd.) as the middle layer,
Co-extruded film (35 μm in total thickness) on the outermost layer of linear low-density polyethylene resin while corona-treated on one side
m) was formed. Furthermore, 35 μm produced as described above
A two-part curable urethane-based adhesive (trade name) of a linear low density polyethylene resin corona treated surface of a co-extruded film and a corona treated surface of a 25 μm PET film (trade name: Toyobo Ester Film E5102, manufactured by Toyobo Co., Ltd.) : Takelac A910 / Takenate a-3 manufactured by Takeda Chemical Industries, Ltd., the coating amount: 4-5 g / m 2, aging time: were fabricated lid by bonding through a 40 ° C. × 72 hours). Next, the container manufactured as described above is fully filled with the processed cheese heated to 80 ° C., and the lid material manufactured above is placed in the container containing the contents in a single-action heat sealer (140 ° C. to 220 ° C. × 3 kg / cm). 2 x 1
Seconds). A package was prepared by sterilizing it in a retort pot at 121 ° C. for 30 minutes. Subsequently, the flange portion was punched and cut to a width of 10 mm using a ponse.
【００２２】上記により製作した包装体を室温２０℃、
相対湿度６５％の恒温恒湿室にて一週間後、二週間後、
一ヶ月後、三ヶ月後の包装体の開封剥離強度を測定する
ために、フランジ部分の長手方向に対し９０度の方向に
１５ｍｍ幅に裁断し、その剥離強度をオートグラフ（株
式会社島津製作所製）によって９０度剥離の剥離強度を
測定したところ、大きな変化は無く、１８０℃での熱接
着後の包装体において、３８０〜４１０ｇ／１５ｍｍ幅
とバラツキが非常に少なく、非常に滑らかな剥離感が得
られ満足のいく開封剥離感が得られた。レトルト殺菌後
のものもレトルト殺菌前とほぼ同レベルの剥離強度が得
られた。また剥離面の状態を観察したが剥離前の透明色
が白色に変化し歴然と白濁化していることが判った。The package manufactured as described above is kept at a room temperature of 20 ° C.
After one week and two weeks in a constant temperature and humidity room with a relative humidity of 65%,
In order to measure the peel strength of the package after one month and three months, the package is cut to a width of 15 mm in a direction 90 degrees to the longitudinal direction of the flange portion, and the peel strength is measured by an autograph (manufactured by Shimadzu Corporation). ), The peel strength at 90 ° peeling was not significantly changed. In the package after thermal bonding at 180 ° C., the dispersion was very small at 380 to 410 g / 15 mm width, and very smooth peel feeling was obtained. A satisfactory open peeling feeling was obtained. The peel strength after retort sterilization was almost the same level as before retort sterilization. Also, the state of the peeled surface was observed, and it was found that the transparent color before peeling changed to white, and it became apparently cloudy.
【００２３】[0023]
【比較例１】メルトインデックス１ｄｇ／ｍｉｎ、密度
０．９２３ｇ／ｃｍ3 からなるリニアー低密度ポリエチ
レン樹脂（商品名：ＣＳ８０５３．住友化学工業株式会
社製）とメルトインデックス０．４ｄｇ／ｍｉｎ、密度
０．９１５ｇ／ｃｍ3 からなるポリブテン−１樹脂（商
品名：シェルポリブチレン０１１０：シェルジャパン株
式会社製）の配合比率がリニアー低密度ポリエチレン樹
脂９５重量％、ポリブテン−１樹脂量５％の配合樹脂を
用いて、インフレーション押し出し機によって、片面コ
ロナ処理をしながら３０μｍの熱接着フィルムを成膜し
た後、０．３ｍｍのＣＰＰフィルム（出光石油化学株式
会社製ＦＧ−１００タイプ）とを二液硬化ウレタン系接
着剤（商品名：タケラックＡ９１０／タケネートＡ−３
武田薬品工業株式会社製、塗布量：４〜５ｇ／ｍ2 、エ
ージング時間：４０℃×７２時間）を介して貼りあわせ
することによって容器用の原反を製作し、加熱真空成型
機によって縦６０ｍｍ横１２０ｍｍ深さ３０ｍｍの容器
を製作した（図４）。フランジ部分の幅を１５ｍｍ幅と
した。さらに上記容器用蓋材として製作した３０μｍの
熱接着フィルムのコロナ処理面と２５μｍのＰＥＴフィ
ルム（商品名：東洋紡エステルフィルムＥ５１０２、東
洋紡績株式会社製）とを二液硬化ウレタン系接着剤（商
品名：タケラックＡ９１０／タケネートＡ−３武田薬品
工業株式会社製、塗布量：４〜５ｇ／ｍ2 、エージング
時間：４０℃×７２時間）を介して貼りあわせすること
によって蓋材を製作した。次に上記により製作した容器
にカレーのルーを満杯充填した後、上記により製作の蓋
材を内容物の入った容器に単動式ヒートシーラー（１４
０℃〜２２０℃×３ｋｇ／ｃｍ2 ×１秒）によって熱接
着した。それを３０分間ボイル殺菌した包装体も製作し
た。続いてフランジ部分の幅を１０ｍｍ幅にポンスを利
用し打ち抜きカットした。Comparative Example 1 A linear low density polyethylene resin (trade name: CS8053, manufactured by Sumitomo Chemical Co., Ltd.) having a melt index of 1 dg / min and a density of 0.923 g / cm 3 , a melt index of 0.4 dg / min, and a density of 0. A blending ratio of 915 g / cm 3 of polybutene-1 resin (trade name: Shell Polybutylene 0110: manufactured by Shell Japan Co., Ltd.) is a linear low-density polyethylene resin 95% by weight and a polybutene-1 resin amount 5% by weight. Then, after forming a 30 μm thermal adhesive film while performing a one-sided corona treatment by an inflation extruder, a two-part cured urethane-based adhesive was bonded to a 0.3 mm CPP film (FG-100 type manufactured by Idemitsu Petrochemical Co., Ltd.). Agent (trade name: Takelac A910 / Takenate A-3)
(Takeda Pharmaceutical Co., Ltd., coating amount: 4 to 5 g / m 2 , aging time: 40 ° C. × 72 hours) to produce a raw material for a container, and a length of 60 mm by a heating vacuum molding machine. A container having a width of 120 mm and a depth of 30 mm was manufactured (FIG. 4). The width of the flange portion was 15 mm. Further, a two-part curable urethane-based adhesive (trade name) comprising a 30 μm corona-treated surface of a heat-bonding film produced as a lid material for the container and a 25 μm PET film (trade name: Toyobo ester film E5102, manufactured by Toyobo Co., Ltd.) : Takelac A910 / Takenate a-3 manufactured by Takeda Chemical Industries, Ltd., the coating amount: 4-5 g / m 2, aging time: were fabricated lid by bonding through a 40 ° C. × 72 hours). Next, after the container prepared as described above is fully filled with curry roux, the lid prepared as described above is placed in the container containing the contents in a single-acting heat sealer (14).
(0 ° C. to 220 ° C. × 3 kg / cm 2 × 1 second). A package was prepared by boil-sterilizing it for 30 minutes. Subsequently, the flange portion was punched and cut to a width of 10 mm using a ponse.
【００２４】上記により製作した包装体を室温２０℃、
相対湿度６５％の恒温恒湿室にて一週間後、二週間後、
一ヶ月後、三ヶ月後の包装体の開封剥離強度を測定する
ためにフランジ部分の長手方向に対し９０度の方向に１
５ｍｍ幅に裁断し、その剥離強度をオートグラフ（株式
会社島津製作所製）によって９０度剥離の剥離強度を測
定したところ、１８０℃での熱接着後の包装体において
３２５０〜３８５０ｇ／１５ｍｍ幅という結果が得られ
た。剥離強度が強すぎることとそのバラツキが大きいこ
ともあって滑らかな剥離感がなく満足のいく開封剥離感
が得られなかった。The package manufactured as described above is kept at a room temperature of 20 ° C.
After one week and two weeks in a constant temperature and humidity room with a relative humidity of 65%,
After one month, three months later, in order to measure the peel strength of the package, one direction is set at 90 degrees to the longitudinal direction of the flange portion.
The sheet was cut into a width of 5 mm, and the peel strength was measured by an autograph (manufactured by Shimadzu Corporation) at a peeling strength of 90 °. The result was 3250 to 3850 g / 15 mm width in the package after thermal bonding at 180 ° C. was gotten. Due to the fact that the peel strength was too strong and the variation was large, there was no smooth peeling feeling and no satisfactory opening peeling feeling was obtained.
【００２５】[0025]
【比較例２】押し出しインフレーション押し出し機によ
って、二種三層の樹脂構成を製作するため、最内層樹脂
として、リニアー低密度ポリエチレン樹脂（商品名：Ｃ
Ｓ８０５３．住友化学工業株式会社製）とポリブテン−
１樹脂（商品名：シェルポリブチレン０１１０：シェル
ジャパン株式会社製）の配合比率がリニヤー低密度ポリ
エチレン樹脂１０重量％、ポリブテン−１樹脂９０重量
％の配合樹脂層を５μｍ、中間層に１５μｍリニヤー低
密度ポリエチレン樹脂（商品名：ＣＳ８０５３．住友化
学工業株式会社製）、最外層に中間層と同様の１５μｍ
リニアー低密度ポリエチレン樹脂層（商品名：ＣＳ８０
５３．住友化学工業株式会社製）を配し、最外層の低密
度ポリエチレン樹脂面に片面コロナ処理をしながら共押
し出しフィルム（全厚み３５μｍ）を成膜した後、共押
し出しフィルム最外層のリニアー低密度ポリエチレン樹
脂層と０．４ｍｍのＣＰＰフィルム（出光石油化学株式
会社製ＦＧ−１００タイプ）とを二液硬化ウレタン系接
着剤（商品名：タケラックＡ９１０／タケネートＡ−３
武田薬品工業株式会社製、塗布量：４〜５ｇ／ｍ2、エ
ージング時間：４０℃×７２時間）を介して貼りあわせ
することによって容器用の原反を製作し、加熱真空成型
機によって縦６０ｍｍ横１２０ｍｍ深さ３０ｍｍの容器
を製作した（図４）。フランジ部分の幅を１５ｍｍ幅と
した。さらに上記容器用蓋材として上記により製作した
３５μｍの共押し出しフィルムのリニヤー低密度ポリエ
チレン樹脂のコロナ処理面と２５μｍのＰＥＴフィルム
（商品名：東洋紡エステルフィルムＥ５１０２、東洋紡
績株式会社製）とを二液硬化ウレタン系接着剤（商品
名：タケラックＡ９１０／タケネートＡ−３武田薬品工
業株式会社製、塗布量：４〜５ｇ／ｍ2 、エージング時
間：４０℃×７２時間）を介して貼りあわせすることに
よって蓋材を製作した。次に上記により製作した容器に
８０℃に加温したプロセスチーズを満杯充填した後、上
記により製作の蓋材を内容物の入った容器に単動式ヒー
トシーラー（１４０℃〜２２０℃×３ｋｇ／ｃｍ2 ×１
秒）によって熱接着した。それを１２１℃×３０分間の
レトルト殺菌した包装体も製作した。続いてフランジ部
分の幅を１０ｍｍ幅にポンスを利用し打ち抜きカットし
た。[Comparative Example 2] A linear low-density polyethylene resin (trade name: C) was used as the innermost layer resin in order to produce a resin composition of two types and three layers by an extrusion inflation extruder.
S8053. Sumitomo Chemical Co., Ltd.) and polybutene
One resin (trade name: Shell Polybutylene 0110: manufactured by Shell Japan Co., Ltd.) has a low-density polyethylene resin of 10% by weight and a polybutene-1 resin of 90% by weight. High-density polyethylene resin (trade name: CS8053; manufactured by Sumitomo Chemical Co., Ltd.), the outermost layer of which is 15 μm in the same manner as the intermediate layer
Linear low density polyethylene resin layer (trade name: CS80
53. Sumitomo Chemical Co., Ltd.), a co-extruded film (total thickness of 35 μm) is formed on the outermost layer of low-density polyethylene resin while performing one-sided corona treatment, and then a linear low-density polyethylene of the outermost layer of the co-extruded film is formed. A resin layer and a 0.4 mm CPP film (FG-100 type manufactured by Idemitsu Petrochemical Co., Ltd.) are bonded with a two-part curable urethane-based adhesive (trade name: Takerac A910 / Takenate A-3).
(Takeda Pharmaceutical Co., Ltd., coating amount: 4 to 5 g / m 2 , aging time: 40 ° C. × 72 hours) to produce a raw material for a container, and a length of 60 mm by a heating vacuum molding machine. A container having a width of 120 mm and a depth of 30 mm was manufactured (FIG. 4). The width of the flange portion was 15 mm. Further, as a lid material for the container, a two-package of a corona-treated surface of a linear low-density polyethylene resin of a 35 μm co-extruded film manufactured as described above and a 25 μm PET film (trade name: Toyobo ester film E5102, manufactured by Toyobo Co., Ltd.) By bonding via a cured urethane adhesive (trade name: Takerac A910 / Takenate A-3, manufactured by Takeda Pharmaceutical Co., Ltd., coating amount: 4 to 5 g / m 2 , aging time: 40 ° C. × 72 hours) A lid was made. Next, the container manufactured as described above is fully filled with the processed cheese heated to 80 ° C., and the lid material manufactured as described above is placed in the container containing the contents in a single-action heat sealer (140 ° C. to 220 ° C. × 3 kg / cm 2 × 1
Seconds). A package that was sterilized by retort at 121 ° C. for 30 minutes was also manufactured. Subsequently, the flange portion was punched and cut to a width of 10 mm using a ponse.
【００２６】上記により製作した包装体を室温２０℃、
相対湿度６５％の恒温恒湿室にて一週間後、二週間後、
一ヶ月後、三ヶ月後の包装体の開封剥離強度を測定する
ためにフランジ部分の長手方向に対し９０度の方向に１
５ｍｍ幅に裁断し、その剥離強度をオートグラフ（株式
会社島津製作所製）によって９０度剥離の剥離強度を測
定したところ、バラツキが大きく熱接着強度が１８０℃
での熱接着後の包装体において３０５０〜３８５０ｋｇ
／１５ｍｍ幅と高く人の手で開封するのが困難であっ
た。The package manufactured as described above is kept at a room temperature of 20 ° C.
After one week and two weeks in a constant temperature and humidity room with a relative humidity of 65%,
After one month, three months later, in order to measure the peel strength of the package, one direction is set at 90 degrees to the longitudinal direction of the flange portion.
The sheet was cut to a width of 5 mm, and the peel strength was measured at 90 ° peeling with an autograph (manufactured by Shimadzu Corporation).
3050-3850 kg in package after thermal bonding
/ 15 mm wide and difficult to open with human hands.
【００２７】[0027]
【比較例３】０．４ｍｍのＣＰＰフィルム（出光石油化
学株式会社製ＦＧ−１００タイプ）を加熱真空成型機に
よって縦６０ｍｍ横１２０ｍｍ深さ３０ｍｍの容器を製
作した。フランジ部分の幅を１５ｍｍ幅とした。さらに
上記容器用蓋材として東洋アルミ株式会社製ＰＰ容器用
シーラントフィルム２８μｍ（商品名：ＰＰＥ、東洋ア
ルミニウム株式会社製）のコロナ処理面と２５μｍのナ
イロンフィルム（商品名：東紡ナイロンフィルムＥ５１
０２、東洋紡績株式会社製）とを二液硬化ウレタン系接
着剤（商品名：タケラックＡ９１０／タケネートＡ−３
武田薬品工業株式会社製、塗布量：４〜５ｇ／ｍ2 、エ
ージング時間：４０℃×７２時間）を介して貼りあわせ
することによって蓋材を製作した。次に上記により製作
した容器に８０℃に加温したプロセスチーズを満杯充填
した後、上記により製作の蓋材を内容物の入った容器に
単動式ヒートシーラー（１４０℃〜２２０℃×３ｋｇ／
ｃｍ2 ×１秒）によって熱接着した。それを１２１℃、
３０分間のレトルト釜でレトルト殺菌した包装体も製作
した。続いてフランジ部分の幅を１０ｍｍ幅にポンスを
利用し打ち抜きカットした。Comparative Example 3 A 0.4 mm CPP film (FG-100 type, manufactured by Idemitsu Petrochemical Co., Ltd.) was manufactured into a container having a length of 60 mm, a width of 120 mm and a depth of 30 mm by a heating vacuum molding machine. The width of the flange portion was 15 mm. Further, as a cover material for the container, a corona-treated surface of 28 μm (trade name: PPE, manufactured by Toyo Aluminum Co., Ltd.) and a 25 μm nylon film (trade name: Tobo Nylon Film E51)
02, manufactured by Toyobo Co., Ltd.) and a two-component cured urethane-based adhesive (trade name: Takerac A910 / Takenate A-3)
A lid material was produced by laminating via Takeda Pharmaceutical Company Limited, coating amount: 4 to 5 g / m 2 , aging time: 40 ° C. × 72 hours. Next, the container manufactured as described above is fully filled with the processed cheese heated to 80 ° C., and the lid material manufactured as described above is placed in the container containing the contents in a single-action heat sealer (140 ° C. to 220 ° C. × 3 kg /
cm 2 × 1 second). At 121 ° C,
A package retort-sterilized in a retort pot for 30 minutes was also manufactured. Subsequently, the flange portion was punched and cut to a width of 10 mm using a ponse.
【００２８】上記により製作した包装体を室温２０℃、
相対湿度６５％の恒温恒湿室にて一週間後、二週間後、
一ヶ月後、三ヶ月後の包装体の開封剥離強度を測定する
ためにフランジ部分の長手方向に対し９０度の方向に１
５ｍｍ幅に裁断し、その剥離強度をオートグラフ（株式
会社島津製作所製）によって９０度剥離の剥離強度を測
定したところ、経時による大きな変化は無かったが、剥
離強度そのものは、１８０℃での熱接着後の包装体にお
いて１３００〜１４５０ｍｇ／１５ｍｍ幅と強くかつバ
ラツキが大きく、滑らかな剥離感が無く満足のいく開封
剥離感が得られなかった。The package manufactured as described above is kept at a room temperature of 20 ° C.
After one week and two weeks in a constant temperature and humidity room with a relative humidity of 65%,
After one month, three months later, in order to measure the peel strength of the package, one direction is set at 90 degrees to the longitudinal direction of the flange portion.
The sheet was cut to a width of 5 mm, and the peel strength was measured by an autograph (manufactured by Shimadzu Corporation) at 90 ° peel strength. As a result, there was no significant change over time. The package after bonding had a strong and large variation of 1300 to 1450 mg / 15 mm width, did not have a smooth peeling feeling, and could not obtain a satisfactory opening peeling feeling.
【００２９】[0029]
【比較例４】０．４ｍｍのＣＰＰフィルム（出光石油化
学株式会社製ＦＧ−１００タイプ）を加熱真空成型機に
よって縦６０ｍｍ横１２０ｍｍ深さ３０ｍｍの容器を製
作した。フランジ部分の幅を１５ｍｍ幅とした。さらに
上記、容器用蓋材として東セロ化学株式会社製ＰＰ容器
用シーラントフィルム５０μｍ（商品名：ＣＭＰＳ−０
１７Ｃ、東セロ化学株式会社製）のコロナ処理面と２５
μｍのＰＥＴフィルム（商品名：東洋紡エステルフィル
ムＥ５１０２、東洋紡績株式会社製）とを二液硬化ウレ
タン系接着剤（商品名：タケラックＡ９１０／タケネー
トＡ−３武田薬品工業株式会社製、塗布量：４〜５ｇ／
ｍ2 、エージング時間：４０℃×７２時間）を介して貼
りあわせすることによって蓋材を製作した。次に上記に
より製作した容器に８０℃に加温したプロセスチーズを
満杯充填した後、上記により製作の蓋材を内容物の入っ
た容器に単動式ヒートシーラー（１４０℃〜２２０℃×
３ｋｇ／ｃｍ2 ×１秒）によって熱接着した。それを１
２１℃、３０分間のレトルト釜でレトルト殺菌した包装
体も製作した。続いてフランジ部分の幅を１０ｍｍ幅に
ポンスを利用し打ち抜きカットした。Comparative Example 4 A container having a length of 60 mm, a width of 120 mm and a depth of 30 mm was produced from a 0.4 mm CPP film (FG-100 type, manufactured by Idemitsu Petrochemical Co., Ltd.) using a heating vacuum molding machine. The width of the flange portion was 15 mm. Further, as a cover material for the container, a sealant film for PP container 50 μm (trade name: CMPS-0) manufactured by Tosero Chemical Co., Ltd.
17C, Tocelo Chemical Co., Ltd.) Corona treated surface and 25
μm PET film (trade name: Toyobo ester film E5102, manufactured by Toyobo Co., Ltd.) and a two-part curable urethane-based adhesive (trade name: Takerac A910 / Takenate A-3, manufactured by Takeda Pharmaceutical Co., Ltd., coating amount: 4) ~ 5g /
m 2 , aging time: 40 ° C. × 72 hours) to produce a lid material. Next, the container manufactured as described above is fully filled with the processed cheese heated to 80 ° C., and the lid material manufactured as described above is placed in the container containing the contents in a single-action heat sealer (140 ° C. to 220 ° C. ×
(3 kg / cm 2 × 1 second). 1
A package retort-sterilized in a retort pot at 21 ° C. for 30 minutes was also manufactured. Subsequently, the flange portion was punched and cut to a width of 10 mm using a ponse.
【００３０】上記により製作した包装体を室温２０℃、
相対湿度６５％の恒温恒湿室にて一週間後、二週間後、
一ヶ月後、三ヶ月後の包装体の開封剥離強度を測定する
ためにフランジ部分の長手方向に対し９０度の方向に１
５ｍｍ幅に裁断し、その剥離強度をオートグラフ（株式
会社島津製作所製）によって９０度剥離の剥離強度を測
定したところ、経時による大きな変化は無かったが、剥
離強度そのものは１８０℃での熱接着後の包装体におい
て、７５０〜１０００ｇ／１５ｍｍ幅と強くかつバラツ
キが大きく滑らかな剥離感が無く、レトルト殺菌処理に
よる剥離強度低下も見られ不安定で満足のいく開封剥離
感が得られなかった。The package manufactured as described above is kept at a room temperature of 20 ° C.
After one week and two weeks in a constant temperature and humidity room with a relative humidity of 65%,
After one month, three months later, in order to measure the peel strength of the package, one direction is set at 90 degrees to the longitudinal direction of the flange portion.
The sheet was cut to a width of 5 mm, and its peel strength was measured by an autograph (manufactured by Shimadzu Corporation) at 90 ° peel strength. As a result, there was no significant change with time, but the peel strength itself was 180 ° C. In the later package, there was no smooth peeling feeling with a strong and large variation of 750 to 1000 g / 15 mm width, and a decrease in peeling strength due to the retort sterilization treatment was observed, and an unstable and satisfactory opening peeling feeling was not obtained.
【００３１】[0031]
【比較例５】０．４ｍｍのＣＰＰフィルム（出光石油化
学株式会社製ＦＧ−１００タイプ）を加熱真空成型機に
よって縦６０ｍｍ横１２０ｍｍ深さ３０ｍｍの容器を製
作した。フランジ部分の幅を１５ｍｍ幅とした。さらに
上記容器用蓋材として東セロ化学株式会社製ＰＰ容器用
シーラントフィルム３０μｍＣＭＰＳ−０１３Ｃのコロ
ナ処理面と２５μｍのＰＥＴフィルム（商品名：東洋紡
エステルフィルムＥ５１０２、東洋紡績株式会社製）と
を二液硬化ウレタン系接着剤（商品名：タケラック９１
０／タケネートＡ−３武田薬品工業株式会社製、塗布
量：４〜５ｇ／ｍ2 、エージング時間：４０℃×７２時
間）を介して貼りあわせすることによって蓋材を製作し
た。次に上記により製作した容器に８０℃に加温したプ
ロセスチーズを満杯充填した後、上記により製作の蓋材
を内容物の入った容器に単動式ヒートシーラー（１４０
℃〜２２０℃×３ｋｇ／ｃｍ2 ×１秒）によって熱接着
した。それを１２１℃、３０分間のレトルト釜でレトル
ト殺菌した包装体も製作した。続いてフランジ部分の幅
を１０ｍｍ幅にポンスを利用し打ち抜きカットした。Comparative Example 5 A 0.4 mm CPP film (FG-100 type, manufactured by Idemitsu Petrochemical Co., Ltd.) was manufactured into a container having a length of 60 mm, a width of 120 mm and a depth of 30 mm using a heating vacuum molding machine. The width of the flange portion was 15 mm. Further, as a cover material for the container, a corona-treated surface of a 30 μm CMPS-013C sealant film for PP container and a 25 μm PET film (trade name: Toyobo Ester Film E5102, manufactured by Toyobo Co., Ltd.) manufactured by Tocelo Chemical Co., Ltd. Adhesive (trade name: Bamboo Rack 91)
0 / Takenate A-3 manufactured by Takeda Pharmaceutical Co., Ltd., coating amount: 4 to 5 g / m 2 , aging time: 40 ° C. × 72 hours) to produce a lid material. Next, the container manufactured as described above is fully filled with the processed cheese heated to 80 ° C., and the lid material manufactured as described above is placed in the container containing the contents in a single-acting heat sealer (140).
C.-220.degree. C..times.3 kg / cm.sup.2.times.1 second ). A package was prepared by sterilizing it in a retort pot at 121 ° C. for 30 minutes. Subsequently, the flange portion was punched and cut to a width of 10 mm using a ponse.
【００３２】上記により製作した包装体を室温２０℃、
相対湿度６５％の恒温恒湿室にて一週間後、二週間後、
一ヶ月後、三ヶ月後の包装体の開封剥離強度を測定する
ためにフランジ部分の長手方向に対し９０度の方向に１
５ｍｍ幅に裁断し、その剥離強度をオートグラフ（株式
会社島津製作所製）によって９０度剥離の剥離強度を測
定したところ、経時による大きな変化は無かったが、剥
離強度そのものは、１８０℃での熱接着後の包装体にお
いて１３００〜１５００ｇ／１５ｍｍ幅と強くかつバラ
ツキが大きく滑らかな剥離感が無く、レトルト殺菌処理
による剥離強度低下も見られ不安定で満足のいく開封剥
離感が得られなかった。The package manufactured as described above was placed at room temperature of 20 ° C.
After one week and two weeks in a constant temperature and humidity room with a relative humidity of 65%,
After one month, three months later, in order to measure the peel strength of the package, one direction is set at 90 degrees to the longitudinal direction of the flange portion.
The sheet was cut to a width of 5 mm, and the peel strength was measured by an autograph (manufactured by Shimadzu Corporation) at 90 ° peel strength. As a result, there was no significant change over time. In the package after bonding, there was no smooth peeling feeling with a strong and large variation of 1300 to 1500 g / 15 mm width, and there was a decrease in peeling strength due to the retort sterilization treatment, and an unstable and satisfactory opening peeling feeling was not obtained.
【００３３】[0033]
【比較例６】０．４ｍｍのＣＰＰフィルム（出光石油化
学株式会社製ＦＧ−１００タイプ）を加熱真空成型機に
よって縦６０ｍｍ横１２０ｍｍ深さ３０ｍｍの容器を製
作した。フランジ部分の幅を１５ｍｍ幅とした。さらに
上記容器用蓋材として和田化学株式会社製ＰＰ容器用シ
ーラントフィルム３０μｍＶＭＸ−ＸＲ２２ＦＴのコロ
ナ処理面と２５μｍ（商品名：東洋紡エステルフィルム
Ｅ５１０２、東洋紡績株式会社製）のＰＥＴフィルムと
を二液硬化ウレタン系接着剤（商品名：タケラックＡ９
１０／タケネートＡ−３武田薬品工業株式会社製、塗布
量：４〜５ｇ／ｍ2 、エージング時間：４０℃×７２時
間）を介して貼りあわせすることによって蓋材を製作し
た。次に上記により製作した容器に８０℃に加温したプ
ロセスチーズを満杯充填した後、上記により製作の蓋材
を内容物の入った容器に単動式ヒートシーラー（１４０
℃〜２２０℃×３ｋｇ／ｃｍ2 ×１秒）によって熱接着
した。それを１２１℃、３０分間のレトルト釜でレトル
ト殺菌した包装体も製作した。続いてフランジ部分の幅
を１０ｍｍ幅にポンスを利用し打ち抜きカットした。Comparative Example 6 A container having a length of 60 mm, a width of 120 mm and a depth of 30 mm was manufactured from a 0.4 mm CPP film (FG-100 type manufactured by Idemitsu Petrochemical Co., Ltd.) using a heating vacuum molding machine. The width of the flange portion was 15 mm. Further, as a lid material for the container, a two-component cured urethane was used in which a corona-treated surface of 30 μm VMX-XR22FT PP film manufactured by Wada Chemical Co., Ltd. and a PET film of 25 μm (trade name: Toyobo Ester Film E5102, manufactured by Toyobo Co., Ltd.) were used. Adhesive (trade name: Takerack A9)
10 / Takenate A-3 manufactured by Takeda Pharmaceutical Co., Ltd., coating amount: 4 to 5 g / m 2 , aging time: 40 ° C. × 72 hours) to produce a lid material. Next, the container manufactured as described above is fully filled with the processed cheese heated to 80 ° C., and the lid material manufactured as described above is placed in the container containing the contents in a single-acting heat sealer (140).
C.-220.degree. C..times.3 kg / cm.sup.2.times.1 second ). A package was prepared by sterilizing it in a retort pot at 121 ° C. for 30 minutes. Subsequently, the flange portion was punched and cut to a width of 10 mm using a ponse.
【００３４】上記により製作した包装体を室温２０℃、
相対湿度６５％の恒温恒湿室にて一週間後、二週間後、
一ヶ月後、三ヶ月後の包装体の開封剥離強度を測定する
ためにフランジ部分の長手方向に対し９０度の方向に１
５ｍｍ幅に裁断し、その剥離強度をオートグラフ（株式
会社島津製作所製）によって９０度剥離の剥離強度を測
定したところ、経時による大きな変化は無かったが、剥
離時スリップスティック現象を起こし、剥離強度が１８
０℃での熱接着後の包装体において、４００〜６００ｇ
／１５ｍｍ幅とバラツキが大きく滑らかな剥離感が無
く、レトルト殺菌処理による剥離強度低下も見られ不安
定で満足のいく開封剥離感が得られなかった。The package manufactured as described above was placed at a room temperature of 20 ° C.
After one week and two weeks in a constant temperature and humidity room with a relative humidity of 65%,
After one month, three months later, in order to measure the peel strength of the package, one direction is set at 90 degrees to the longitudinal direction of the flange portion.
The sheet was cut into a width of 5 mm, and the peel strength was measured by an autograph (manufactured by Shimadzu Corporation) at 90 ° peel strength. As a result, there was no significant change over time. Is 18
400 to 600 g in the package after heat bonding at 0 ° C.
There was no smooth peeling feeling with a large variation in / 15 mm width, and a decrease in peeling strength due to the retort sterilization treatment was observed, and an unstable and satisfactory opening peeling feeling was not obtained.
【００３５】[0035]
【比較例７】０．４ｍｍのＣＰＰフィルム（出光石油化
学株式会社製ＦＧ−１００タイプ）を加熱真空成型機に
よって縦６０ｍｍ横１２０ｍｍ深さ３０ｍｍの容器を製
作した。フランジ部分の幅を１５ｍｍ幅とした。さらに
上記容器用蓋材として東レ合成株式会社製ＰＰ容器用シ
ーラントフィルム３０μｍＣＦ９５０１Ｃのコロナ処理
面と２５μｍのＰＥＴフィルム（商品名：東洋紡エステ
ルフィルムＥ５１０２、東洋紡績株式会社製）とを二液
硬化ウレタン系接着剤（商品名：タケラックＡ９１０／
タケネートＡ−３武田薬品工業株式会社製、塗布量：４
〜５ｇ／ｍ2 、エージング時間：４０℃×７２時間）を
介して貼りあわせすることによって蓋材を製作した。次
に上記により製作した容器に８０℃に加温したプロセス
チーズを満杯充填した後、上記により製作の蓋材を内容
物の入った容器に単動式ヒートシーラー（１４０℃〜２
２０℃×３ｋｇ／ｃｍ2 ×１秒）によって熱接着した。
それを１２１℃、３０分間のレトルト釜でレトルト殺菌
した包装体も製作した。続いてフランジ部分の幅を１０
ｍｍ幅にポンスを利用し打ち抜きカットした。Comparative Example 7 A container having a length of 60 mm, a width of 120 mm and a depth of 30 mm was manufactured from a 0.4 mm CPP film (FG-100 type, manufactured by Idemitsu Petrochemical Co., Ltd.) using a heating vacuum molding machine. The width of the flange portion was 15 mm. Further, as a lid material for the above container, a two-component curable urethane-based adhesive is applied to a 30-μm CF9501C corona-treated surface of a PP container sealant film and a 25-μm PET film (trade name: Toyobo Ester Film E5102, manufactured by Toyobo Co., Ltd.). Agent (trade name: Takerac A910 /
Takenate A-3 manufactured by Takeda Pharmaceutical Co., Ltd., coating amount: 4
５5 g / m 2 , aging time: 40 ° C. × 72 hours) to produce a lid material. Next, the container manufactured as described above is fully filled with the processed cheese heated to 80 ° C., and the lid material manufactured as described above is placed in the container containing the contents in a single-acting heat sealer (140 ° C. to 2 ° C.).
(20 ° C. × 3 kg / cm 2 × 1 second).
A package was prepared by sterilizing it in a retort pot at 121 ° C. for 30 minutes. Then, set the width of the flange to 10
It was punched and cut to a width of mm using a ponse.
【００３６】上記により製作した包装体を室温２０℃、
相対湿度６５％の恒温恒湿室にて一週間後、二週間後、
一ヶ月後、三ヶ月後の包装体の開封剥離強度を測定する
ためにフランジ部分の長手方向に対し９０度の方向に１
５ｍｍ幅に裁断し、その剥離強度をオートグラフ（株式
会社島津製作所製）によって９０度剥離の剥離強度を測
定したところ、経時による大きな変化は無かったが、剥
離強度そのものは、１８０℃での熱接着後の包装体にお
いて７５０〜９５０ｇ／１５ｍｍ幅と強くかつバラツキ
が大きく滑らかな剥離感が無く、レトルト殺菌処理によ
る剥離強度低下も見られ不安定で満足のいく開封剥離感
が得られなかった。The package manufactured as described above was placed at room temperature of 20 ° C.
After one week and two weeks in a constant temperature and humidity room with a relative humidity of 65%,
After one month, three months later, in order to measure the peel strength of the package, one direction is set at 90 degrees to the longitudinal direction of the flange portion.
The sheet was cut to a width of 5 mm, and the peel strength was measured by an autograph (manufactured by Shimadzu Corporation) at 90 ° peel strength. As a result, there was no significant change over time. The package after bonding had a strong and 750-950 g / 15 mm width with no large and uneven peeling feeling, and there was also a decrease in peeling strength due to the retort sterilization treatment, and an unstable and satisfactory opening peeling feeling was not obtained.
【００３７】〔各性能試験方法及び評価〕 剥離強度 各包装体のレトルト殺菌処理前後、ならびに各包装体を
室温２０℃、相対湿度６５％の恒温恒湿室にて一週間
後、二週間後、一ヶ月後、三ヶ月後の包装体の開封剥離
強度を測定するためにフランジ部分の長手方向に対し９
０度の方向に１５ｍｍ幅に裁断し、それらの剥離強度を
オートグラフ（株式会社島津製作所製）によって９０度
剥離の剥離強度を測定した。[Performance Test Methods and Evaluations] Peel Strength Before and after the retort sterilization treatment of each package, and after one and two weeks in a constant temperature and humidity room at room temperature of 20 ° C. and a relative humidity of 65%, In order to measure the peel strength of the package after one month and three months, 9
The sheet was cut to a width of 15 mm in the direction of 0 degree, and the peel strength of the 90-degree peel was measured by an autograph (manufactured by Shimadzu Corporation).
【００３８】剥離強度のバラツキ（Ｒ値）：剥離チャー
ト（図５、図６）において、剥離中（剥離開始から剥離
終了直前まで）の上限値から下限値を差し引いた値をも
ってＲ値とした。 易開封性性能：上記で製作したサンプルを人の手で剥離
した時の易開封性について評価した。 熱接着面の透明性の有無：目視 悪戯防止性性能：剥離面（容器面及び蓋材）の白濁化 上記試験方法及び評価の主な結果を図７乃至図１０にま
とめて示す。Variation in peel strength (R value): In the peel charts (FIGS. 5 and 6), the value obtained by subtracting the lower limit value from the upper limit value during peeling (from the start of peeling to immediately before the end of peeling) was defined as the R value. Easy-opening performance: Easy-opening was evaluated when the sample produced above was peeled off by hand. Presence / absence of transparency of heat-bonded surface: visual anti-tamper performance: cloudiness of peeled surface (container surface and lid material) The main results of the above test methods and evaluations are summarized in FIGS. 7 to 10.
【００３９】[0039]
【発明の効果】この発明によれば、以上のように、レト
ルト殺菌条件に耐え、悪戯防止機能をもちかつ今までに
無い易開封性を持ち、老人、子供にも容易に開封できる
非常にソフト感のある柔軟性に富んだ包装体が得られ
る。According to the present invention, as described above, it is very soft, which can withstand retort sterilization conditions, has a mischievous prevention function, has an easy-to-open property as never before, and can be easily opened by elderly people and children. A package with a feeling of flexibility is obtained.
【図１】この発明の積層体の一例を示す断面図FIG. 1 is a cross-sectional view showing an example of a laminate of the present invention.
【図２】同上の積層体によって形成した包装体の一例を
示す縦断面図FIG. 2 is a vertical cross-sectional view showing an example of a package formed by the above-mentioned laminate.
【図３】包装体の他の例を示す縦断面図FIG. 3 is a longitudinal sectional view showing another example of the package.
【図４】実施例及び比較例で製作した容器のサイズ及び
形状を示す（イ）平面図と（ロ）横断面図FIG. 4A is a plan view and FIG. 4B is a cross-sectional view showing the sizes and shapes of containers manufactured in Examples and Comparative Examples.
【図５】実施例の剥離長さと剥離強度を示すチャートFIG. 5 is a chart showing a peel length and a peel strength of an example.
【図６】比較例の剥離長さと剥離強度の関係を示すチャ
ートFIG. 6 is a chart showing a relationship between a peel length and a peel strength in a comparative example.
【図７】実施例の熱接着温度と剥離強度を示す表FIG. 7 is a table showing heat bonding temperatures and peel strengths of examples.
【図８】比較例の熱接着温度と剥離強度を示す表FIG. 8 is a table showing a heat bonding temperature and a peel strength of a comparative example.
【図９】実施例の性能評価をまとめた表FIG. 9 is a table summarizing performance evaluations of examples.
【図１０】比較例の性能評価をまとめた表FIG. 10 is a table summarizing performance evaluations of a comparative example.
１ 包装用積層体 ２ 基材 ２ａ アルミニウム箔 ２ｂ 着色層 ２ｃ 外面樹脂層 ２ｄ 中間樹脂層 ３ 熱接着層 DESCRIPTION OF SYMBOLS 1 Laminated body for packaging 2 Base material 2a Aluminum foil 2b Colored layer 2c Outer resin layer 2d Intermediate resin layer 3 Thermal bonding layer
───────────────────────────────────────────────────── フロントページの続き (72)発明者 関口 朋伸 大阪市中央区久太郎町三丁目６番８号 東 洋アルミニウム株式会社内 (72)発明者 芝村 良昭 大阪市中央区久太郎町三丁目６番８号 東 洋アルミニウム株式会社内 Ｆターム(参考） 3E086 AA21 AC07 AD06 BA04 BA15 BB51 BB90 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Tomonobu Sekiguchi 3-6-8 Kutaro-cho, Chuo-ku, Osaka City Inside Toyo Aluminum Co., Ltd. (72) Inventor Yoshiaki Shibamura 3-6-1 Kutaro-cho, Chuo-ku, Osaka City No. 8 Toyo Aluminum Co., Ltd. F term (reference) 3E086 AA21 AC07 AD06 BA04 BA15 BB51 BB90
Claims (8)
脂１５〜８７重量％およびポリブテン−１樹脂１３〜８
５重量％からなる熱接着層を積層した包装用積層体。1. A base material comprising 15 to 87% by weight of a linear low density polyethylene resin and 13 to 8 of a polybutene-1 resin.
A packaging laminate in which a thermal adhesive layer of 5% by weight is laminated.
層体から成る蓋材。2. A lid material having a thickness of 100 μm or less and comprising the laminate of claim 1.
から成る成型多層容器。3. A molded multilayer container comprising the laminate of claim 1 having a thickness of 2 mm or less.
器の熱接着層どうしを熱接着した易開封性包装体。4. An easily-openable package in which the lid material of claim 2 and the thermal adhesive layer of the molded multilayer container of claim 3 are thermally bonded.
樹脂１５〜８７重量％およびポリブテン−１樹脂１３〜
８５重量％からなる易開封性包装体。5. The method of claim 1, wherein the thermal adhesive layer comprises 15 to 87% by weight of a linear low density polyethylene resin and 13 to 13% by weight of a polybutene-1 resin.
An easily openable package comprising 85% by weight.
８００ｇ／１５ｍｍ幅以下からなる請求項５記載の易開
封性包装体。6. The easy-open package according to claim 5, wherein the peel strength after heat bonding at 180 ° C. is 800 g / 15 mm width or less.
Ｒ値が１００ｇ／１５ｍｍ幅以下からなる請求項５又は
６記載の易開封性包装体。7. The easily-openable package according to claim 5, wherein the R value of the peel strength after thermal bonding at 180 ° C. is 100 g / 15 mm width or less.
〜７記載の易開封性包装体。8. The peeled portion turns white after opening.
8. The easy-open package according to any one of items 7 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30266098A JP3447229B2 (en) | 1998-10-23 | 1998-10-23 | Packaging laminate and easy-open packaging |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30266098A JP3447229B2 (en) | 1998-10-23 | 1998-10-23 | Packaging laminate and easy-open packaging |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2000128229A true JP2000128229A (en) | 2000-05-09 |
| JP3447229B2 JP3447229B2 (en) | 2003-09-16 |
Family
ID=17911665
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP30266098A Expired - Fee Related JP3447229B2 (en) | 1998-10-23 | 1998-10-23 | Packaging laminate and easy-open packaging |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3447229B2 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002016525A1 (en) | 2000-08-22 | 2002-02-28 | Mitsui Chemicals, Inc. | Sealing resin composition, sealing films and use thereof |
| JP2002146343A (en) * | 2000-08-22 | 2002-05-22 | Mitsui Chemicals Inc | Sealant resin composition, sealant film and its use |
| US6794029B2 (en) | 2000-07-18 | 2004-09-21 | Showa Denko Plastic Products Co., Ltd. | Layered film and packaging product thereof |
| KR100748758B1 (en) * | 1999-09-20 | 2007-08-13 | 다이니폰 인사츠 가부시키가이샤 | Packing material and container |
| JP2016175205A (en) * | 2015-03-18 | 2016-10-06 | 東ソー株式会社 | Easily-openable packaging material |
-
1998
- 1998-10-23 JP JP30266098A patent/JP3447229B2/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100748758B1 (en) * | 1999-09-20 | 2007-08-13 | 다이니폰 인사츠 가부시키가이샤 | Packing material and container |
| US6794029B2 (en) | 2000-07-18 | 2004-09-21 | Showa Denko Plastic Products Co., Ltd. | Layered film and packaging product thereof |
| WO2002016525A1 (en) | 2000-08-22 | 2002-02-28 | Mitsui Chemicals, Inc. | Sealing resin composition, sealing films and use thereof |
| JP2002146343A (en) * | 2000-08-22 | 2002-05-22 | Mitsui Chemicals Inc | Sealant resin composition, sealant film and its use |
| EP1323803A1 (en) * | 2000-08-22 | 2003-07-02 | Mitsui Chemicals, Inc. | Sealing resin composition, sealing films and use thereof |
| EP1323803A4 (en) * | 2000-08-22 | 2004-10-27 | Mitsui Chemicals Inc | Sealing resin composition, sealing films and use thereof |
| US6861478B2 (en) | 2000-08-22 | 2005-03-01 | Mitsui Chemicals, Inc. | Sealing resin composition sealing films and use thereof |
| JP2016175205A (en) * | 2015-03-18 | 2016-10-06 | 東ソー株式会社 | Easily-openable packaging material |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3447229B2 (en) | 2003-09-16 |
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