JPS62146138A - Heat-resistant vessel - Google Patents
Heat-resistant vesselInfo
- Publication number
- JPS62146138A JPS62146138A JP28309385A JP28309385A JPS62146138A JP S62146138 A JPS62146138 A JP S62146138A JP 28309385 A JP28309385 A JP 28309385A JP 28309385 A JP28309385 A JP 28309385A JP S62146138 A JPS62146138 A JP S62146138A
- Authority
- JP
- Japan
- Prior art keywords
- heat
- resin film
- thermoplastic polyester
- thermoplastic
- resistant 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.)
- Pending
Links
Landscapes
- Containers Having Bodies Formed In One Piece (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、結晶化度の尚い熱可塑性ポリエステル樹脂層
と熱可塑性樹脂フィルムとの複合シートを成形した耐熱
性、耐衝撃性、及び次面平滑性と光沢に丁ぐれｆｃ耐熱
容器に関する。Detailed Description of the Invention (Field of Industrial Application) The present invention provides a heat-resistant, impact-resistant, and Concerning FC heat-resistant containers with excellent surface smoothness and gloss.
（従来の技術）
従来から、熱可塑性ポリエステル樹脂からなるシート音
用い、熱成形とともに結晶化度を島め、耐熱性全頁する
成形品を得る方法は開示されている（ Ａ、 特公昭
４４−５１１１８号公報、Ｂ、σＳＰ３．９６０．８０
７号公報、Ｃ６特開昭５０−７２９５０号公報）。しか
し前記の発明は、いずれも、結晶化度を高めた熱可塑性
ポリエステル成形品の耐衝撃性（模様的強度）が低い挙
上改良するものであつて、Ａでは、特定の相対粘度の卯
科七選定している発明であり、Ｂでは、ヒビ割れ防止剤
（ｃｒａｃｋｓｔｏｐｐｉｎｇ ａｇｅ、ｎｔ ） ｙ
ｉ混合した発明であり、Ｃでは、熱可塑性ポリエステル
樹脂七三元共重合化している発明である。更に、特開昭
６０−４７０５７号公報には、結晶化した熱可塑性ポリ
エステル樹脂成形品の光沢が低く、成形品外観か著しく
劣る事が記述され且つ、この解決１伝として、特殊な熱
可塑性樹脂組成物を混入している。このように、従来か
ら、結晶化度の高い熱可塑性ポリエステル樹脂成形品は
、耐衝撃性・表面光沢性の不良が間魂点であった。(Prior Art) Conventionally, a method has been disclosed in which a sheet made of thermoplastic polyester resin is used, the crystallinity is reduced along with thermoforming, and a molded product with high heat resistance is obtained (A, Japanese Patent Publication No. 1973- Publication No. 51118, B, σSP3.960.80
No. 7, C6 JP-A-50-72950). However, all of the above-mentioned inventions aim to improve the low impact resistance (pattern strength) of thermoplastic polyester molded products with increased crystallinity. In B, crackstopping agent (crackstopping age, nt) y
C is an invention in which thermoplastic polyester resin is copolymerized with seven ternary components. Furthermore, JP-A No. 60-47057 describes that the gloss of crystallized thermoplastic polyester resin molded products is low and the appearance of the molded products is significantly inferior, and as a solution to this problem, a special thermoplastic resin Contains a composition. As described above, thermoplastic polyester resin molded articles with a high degree of crystallinity have conventionally suffered from poor impact resistance and surface gloss.
更に、結晶化度全高め、耐熱性を句する成形品を得るた
めには、シートを成形する際の成形金型を、少なくとも
１４０”Ｃ以上、好ましくは、１７「Ｃ罰後に保つ必要
がある為、あらかじめシートに印刷ケ施し℃も、金型内
の熱により、印刷面が直接、金型に接触した部分の、印
刷面の剥離、脱色を生じる欠点があり九。Furthermore, in order to obtain a molded product with an overall high degree of crystallinity and excellent heat resistance, it is necessary to maintain the mold used for molding the sheet at least 140"C or higher, preferably after 17"C. Therefore, even if the sheet is printed in advance at ℃, there is a drawback that the heat inside the mold may cause peeling or decolorization of the printed surface in the areas where the printed surface is in direct contact with the mold.
（発明が解決しようとする問題点）
本発明は、かかる問題点を解決するものであり、結晶化
度を高める熱可塑性ポリエステル樹脂の性質を変化させ
るごとなく、前記樹脂全層状としてなる少なくとも一面
に他の熱可塑性樹脂フィルムを積層し、熟成形してなる
耐熱性、耐衝撃性及び表面平滑性と光沢に丁ぐれた耐熱
容器であり、しかも印刷よる際は前記積層の中間層に印
刷面全保持することにより印刷の剥離、脱色を生じない
耐熱容器全提供するものである。(Problems to be Solved by the Invention) The present invention solves these problems, and without changing the properties of the thermoplastic polyester resin that increases the degree of crystallinity, at least one surface of the resin is made into a full layer. It is a heat-resistant container made by laminating other thermoplastic resin films and aging them.It is a heat-resistant container with excellent heat resistance, impact resistance, surface smoothness, and gloss.Moreover, when printing, the printed surface is completely covered with the intermediate layer of the laminated film. The present invention provides a heat-resistant container that does not cause peeling of prints or discoloration when maintained.
（問題点全解決するための手段）
丁なわち本発明は、
１、 結晶化度２０％以上の熱可塑性ポリエステル全主
成′分とする樹脂層の少なくとも一面に熱可塑性樹脂フ
ィルムｔ８を層してなる耐熱容器であり、２、！＠晶化
度２０％以上の熱可塑性ポリエステルを主成分とする樹
脂層の少なくとも一面に印刷層を介して熱可塑性樹脂フ
ィルムを積層してなる耐熱容器である。(Means for Solving All Problems) In other words, the present invention has the following features: 1. A thermoplastic resin film T8 is layered on at least one side of a resin layer containing thermoplastic polyester as a main component with a degree of crystallinity of 20% or more. It is a heat-resistant container, and 2! @This is a heat-resistant container formed by laminating a thermoplastic resin film via a printed layer on at least one surface of a resin layer mainly composed of thermoplastic polyester with a crystallinity of 20% or more.
以下図面により本発明の詳細な説明する。The present invention will be explained in detail below with reference to the drawings.
第１図は、結晶化度ケ高めた熱可塑性ポリエステル樹脂
層１を内側に、熱可塑性樹脂フィルム２を外側とした耐
熱＠器であり、第２図１は、熱可塑性樹脂フィルム２會
内側に、結晶化度全高めた熱可塑性ポリエステル樹脂層
１を外側とした耐熱容器である。さらに第６図は、結晶
化度を高めた熱可塑性ポリエステル樹脂層１の両側を熱
可塑性樹脂フィルム２を積〜した耐熱容器である。Figure 1 shows a heat-resistant container with a thermoplastic polyester resin layer 1 with increased crystallinity on the inside and a thermoplastic resin film 2 on the outside. This is a heat-resistant container having a thermoplastic polyester resin layer 1 with a completely increased crystallinity on the outside. Furthermore, FIG. 6 shows a heat-resistant container in which a thermoplastic resin film 2 is laminated on both sides of a thermoplastic polyester resin layer 1 with an increased degree of crystallinity.
まｆｃ、第４図１〜第６図は、削記第１図〜第６図の樹
脂服中間部分に印刷面ケそれぞれ施したものであり、第
１寥１〜第６図は全て本発明の実施例の１例奮示すもの
である。Figs. 4, 1 to 6 are the printed surfaces of the intermediate portions of the resin clothing shown in Figs. 1 to 6, respectively, and all of Figs. This is an example of an embodiment of the present invention.
耐熱容器として用いられる結晶化度が２０％以′ 上の
熱可塑性ポリエステル樹脂層１について更に詳細全記述
すると、結晶化度は、
ｘ
式−＝−十□ において、ｐｃ ＝ １ 、４７ｇ／ｃ
Ｉｎ３、Ｐ Ｐｃ Ｐａ
ＰＬ＝１．５３１９／Ｃｍ３とし、用イ＊ｒ、可塑性＆
ｌＪエステル樹脂の密度Ｐより求めｆｃＸ’に１００倍
した値で表わし、熱可塑性ポリエステル樹脂とは、例え
は、フタール酸、イソ７タール酸、テレフクール酸、マ
レイン酸、コハク酸等の飽和多塩基酸とエチレンクリコ
ール、ジエチレンクリコール、グリセリン、トリメチル
プロパン、１−４−シクロヘキサンジメタツール等の多
価アルコールとのエステル結合により得られる合成樹脂
７示す。ま友この合成樹脂は結晶核剤、安定剤、滑剤、
顔料、他の合成樹脂等が混合されていても艮い。To describe in more detail the thermoplastic polyester resin layer 1 with a degree of crystallinity of 20% or more used as a heat-resistant container, the degree of crystallinity is expressed as follows: pc = 1, 47 g/c
In3, P Pc Pa PL = 1.5319/Cm3, use I*r, plasticity &
It is determined from the density P of lJ ester resin and is expressed as a value multiplied by fcX' by 100. Thermoplastic polyester resins include, for example, saturated polybasic acids such as phthalic acid, isoheptalic acid, terephthalic acid, maleic acid, and succinic acid. Synthetic resin 7 obtained by ester bonding with a polyhydric alcohol such as ethylene glycol, diethylene glycol, glycerin, trimethylpropane, or 1-4-cyclohexane dimetatool is shown. Mayuko's synthetic resins are crystal nucleating agents, stabilizers, lubricants,
It does not matter if pigments, other synthetic resins, etc. are mixed.
次に本発明の熱可塑性１！１４脂フイルム２に用いるフ
ィルムは、熱成形時の耐熱性全考慮すると、少なくとも
１４０°Ｃの金型に数秒間接触しても透明性を損わない
ことが必要であり、材質的には熱可塑性ポリエステル樹
脂やポリエチレン、ポリプロピレン等のポリオレフィン
系樹脂及びポリアミド樹脂からなる二軸延伸又は無痙伸
フィルムがよい。Next, considering the heat resistance during thermoforming, the film used for the thermoplastic 1!14 resin film 2 of the present invention should not lose its transparency even if it is in contact with a mold at at least 140°C for several seconds. In terms of materials, biaxially stretched or non-spastically stretched films made of thermoplastic polyester resins, polyolefin resins such as polyethylene and polypropylene, and polyamide resins are preferable.
−！た好ましくは、面配向指数が０．２以下、さらに好
ましくは０．１５以下の二軸延伸熱可塑性ポリエステル
樹脂フィルムである。面配向指数が０．２ヲ越えると、
熱成形時のフィルム収縮が太きくなり、成形加工時の圧
力を高める等の工夫−ｂｔｂ要になり、成形条件の巾が
狭くなり好ましくない。-! More preferably, it is a biaxially stretched thermoplastic polyester resin film having a plane orientation index of 0.2 or less, more preferably 0.15 or less. When the plane orientation index exceeds 0.2,
The shrinkage of the film during thermoforming increases, making it necessary to take measures such as increasing the pressure during molding, and the range of molding conditions becomes narrower, which is undesirable.
ここで示す面虹向指結とは、２５°Ｃにおける屈折率の
測定により下記刃部により求める。The surface rainbow direction index shown here is determined by the following blade part by measuring the refractive index at 25°C.
（面配向指数）
ηＸ ；巾方向屈折率
ηｙ ；流方向屈折率
万 ；厚味方向屈折率の平均値
不発明の（耐熱容器の目Ｊ刷面に用いる印刷に１通常グ
ラビア印刷方式、フレキソ方式等、特に印刷方法に限定
するものでない。(plane orientation index) ηX; refractive index in the width direction ηy; refractive index in the machine direction; average value of the refractive index in the thickness direction etc., and is not particularly limited to printing methods.
本発明の積層４味は、特に制限はないが、容器を製造す
る罰の積層したシート状態で、熱可塑性樹脂フィルム２
とし′″Ｃは１０〜１００μｍＸ熱町塑性ポリエステル
樹脂を主成分とする樹脂層１は１００〜２．０００μｍ
の範囲のものが一般に使用できる。積層され友シートが
上記厚味未満では、容器にした後の腰が弱い欠点があり
、ｆ之厚床が範囲を越えた場合は、コスト的に向くなる
だけで物性的には何んら問題はない。The laminated material of the present invention is not particularly limited, but may be a thermoplastic resin film 2 in a laminated sheet state for manufacturing containers.
Toshi'''C is 10 to 100 μm, and resin layer 1 whose main component is Netsucho plastic polyester resin is 100 to 2.000 μm.
generally available. If the laminated sheets are less than the above-mentioned thickness, they will have a weak stiffness after being made into a container, and if the thickness exceeds this range, it will only be cost effective and there will be no physical problems. do not have.
不考案の型を製造する方法とし曵は、結晶化度が１０％
以下の熱可塑性ポリエステルを主成分とする樹脂からな
るシートと、熱可塑性樹脂からなるフィルムと會、接着
剤を介して積層するか、熱可塑性樹脂フィルムが熱可塑
性ポリエステル樹脂の除は、結晶化度を高める熱可塑性
ポリエステル樹脂層が溶融時に積層すると接着剤を用い
ないで、該槓湘シート、ａ−真空成形、圧空成形、圧仝
・真壁成形等の熱成形によって容器に賦形すると同時に
、高温に保持した成形型内において、結晶化度１２０％
以上に高めることにより得られる。The unconventional method of manufacturing the mold is that the crystallinity is 10%.
A sheet made of resin whose main component is thermoplastic polyester as shown below and a film made of thermoplastic resin are laminated together via an adhesive, or the thermoplastic resin film is removed from the thermoplastic polyester resin to determine the degree of crystallinity. When the thermoplastic polyester resin layer is laminated when melted, the sheet can be formed into a container by thermoforming such as a-vacuum forming, pressure forming, pressure molding and wall forming, and at the same time Crystallinity is 120% in the mold held at
It can be obtained by increasing the
結晶化度が２０％未満であると、耐熱性が得られない為
、例えは、アメ’に１５０℃で充填しｆｃ場合、容器が
変形し九り、タル）’に２２０℃で焼いた場合容器が変
形してしまう。従って、結晶化度が２０％以上であるこ
とが必須条件である。If the degree of crystallinity is less than 20%, heat resistance cannot be obtained.For example, if a candy is filled at 150℃, the container will deform and crack, and if baked at 220℃. The container becomes deformed. Therefore, it is essential that the crystallinity is 20% or more.
不発明で得られた耐熱容器は、主に食品用として用いら
れ、オーブンや電子レンジ等の調理用として使用する０
とが多い。The heat-resistant container obtained by the invention is mainly used for food, and is used for cooking in ovens, microwaves, etc.
There are many.
（実施例） 以下実施汐りにより詳細に説明する。(Example) This will be explained in more detail below.
央壽例１〜１１、比較例１〜２
結晶化度を高める熱可塑性ポリエステル樹脂（イースト
マンケミカル社製、商品名ｐＢＴ５１３２）層と表１及
び表２に示されたフィルムと全ウレタン系接着剤を用い
ドライラミネート法でａｍし、総厚５００μｍのシート
ラ倚た。これを用いて１２０Ｘ＜５ＯＸ２０％の容器全
底形条件を変えて結晶化度の異なるものを得た。評価結
果上表１及び表２に示す。Examples 1 to 11, Comparative Examples 1 to 2 A thermoplastic polyester resin (manufactured by Eastman Chemical Co., trade name pBT5132) layer that increases crystallinity, the film shown in Tables 1 and 2, and an all-urethane adhesive It was laminated using a dry lamination method to form a sheet with a total thickness of 500 μm. Using this, samples with different degrees of crystallinity were obtained by changing the container bottom shape condition of 120X<5OX20%. The evaluation results are shown in Tables 1 and 2 above.
なお評価方法は次のとおりとした。The evaluation method was as follows.
１）耐熱性：１５０℃オーブン中に１０分間放置し、取
り出し後容器の状態を目視で判定した。1) Heat resistance: The container was left in an oven at 150° C. for 10 minutes, and the condition of the container was visually judged after taking it out.
（１１変形が全くないもの ○
（２１変形が見られるもの Δ
２）衝撃強度：デュポン式衝撃試験機を用い５０％破壊
の高さよりエネルギー換算して求めた。(11 No deformation at all ○ (21 Deformation observed Δ2) Impact strength: Calculated in terms of energy from the height of 50% fracture using a DuPont impact tester.
３） 光ｉ ： Ｊ工Ｓ Ｚ ８７４１ ６０’角度
の値全求めた一イ５−ｔ−油ｉ音場所は、熱可塑性樹脂
フィルム面であり、両面積層の場合は、容器外側とし友
。3) Light: J Engineering S Z 8741 60'The angle value where all the values were calculated is on the thermoplastic resin film surface, and in the case of double-sided layering, it is on the outside of the container.
４）成形性：単発成形÷を用い
（１１成形可能な加熱条件中か１０秒以上・０（２１ｔ
ｔ １０秒以下５秒以上・○実施例１２〜２
０
実施例９〜１１の組成からなる複合シートを用いて第４
〜６図に示す内部にグラビア印刷を施し友耐熱容器全作
成した。この容器の印刷面の主に脱色及び変色上目視で
調べたが、いずれも脱色、変色を生じることのないこと
が判明した。4) Formability: Single-shot molding ÷ (11 moldable heating conditions or more than 10 seconds / 0 (21t)
t 10 seconds or less 5 seconds or more・○Examples 12-2
0 Using the composite sheet consisting of the compositions of Examples 9 to 11, the fourth
A complete heat-resistant container was prepared by performing gravure printing on the inside shown in Figure 6. The printed surface of this container was visually inspected mainly for decolorization and discoloration, and it was found that no decolorization or discoloration occurred.
（発明の効果）
以上のとおり、本発明は結晶化度を高めた熱可塑性ポリ
エステル樹脂の耐熱性と該樹脂の衝撃強度を補うために
地熱可塑性樹脂全損層することにより、耐衝撃性、表面
平滑性及び光沢に丁ぐれ、しかも熱成形性に富んだ耐熱
容器？得る０とができた。(Effects of the Invention) As described above, the present invention provides a total loss layer of geothermoplastic resin in order to supplement the heat resistance of thermoplastic polyester resin with increased crystallinity and the impact strength of the resin. A heat-resistant container with excellent smoothness and gloss, and excellent thermoformability? I got 0.
第１〜６図は本発明の耐熱容器の断面図であり、第４〜
６図は、第１〜６図の容器に印刷面？施し九〇討熱容器
の断面図である。
符号
１・・・熱可塑性ポリエステル樹脂層
２・・・熱可塑性樹脂フィルム
３・・・印刷層1 to 6 are cross-sectional views of the heat-resistant container of the present invention, and FIGS.
Is Figure 6 the printed surface on the containers in Figures 1 to 6? FIG. Code 1... Thermoplastic polyester resin layer 2... Thermoplastic resin film 3... Printing layer
Claims (6)
成分とする樹脂層の少なくとも一面に熱可塑性樹脂フィ
ルムを積層してなる耐熱容器。(1) A heat-resistant container comprising a thermoplastic resin film laminated on at least one surface of a resin layer containing thermoplastic polyester as a main component with a crystallinity of 20% or more.
脂フィルム、ポリオレフィン系樹脂フィルム及びポリア
ミド樹脂フィルムであることを特徴とする特許請求の範
囲第１項記載の耐熱容器。(2) The heat-resistant container according to claim 1, wherein the thermoplastic resin film is a thermoplastic polyester resin film, a polyolefin resin film, or a polyamide resin film.
が０．１５以下であることを特徴とする特許請求の範囲
第１項及び第２項記載の耐熱容器。(3) The heat-resistant container according to claims 1 and 2, wherein the thermoplastic polyester resin film has a plane orientation index of 0.15 or less.
成分とする樹脂層の少なくとも一面に印刷層を介して熱
可塑性樹脂フィルムを積層してなる耐熱容器。(4) A heat-resistant container formed by laminating a thermoplastic resin film on at least one surface of a resin layer mainly composed of thermoplastic polyester having a crystallinity of 20% or more with a printed layer interposed therebetween.
脂フィルム、ポリオレフィン系樹脂フィルム及びポリア
ミド樹脂フィルムであることを特徴とする特許請求の範
囲第４項記載の耐熱容器。(5) The heat-resistant container according to claim 4, wherein the thermoplastic resin film is a thermoplastic polyester resin film, a polyolefin resin film, or a polyamide resin film.
が０．１５以下であることを特徴とする特許請求の範囲
第４項及び第５項記載の耐熱容器。(6) The heat-resistant container according to claims 4 and 5, wherein the thermoplastic polyester resin film has a plane orientation index of 0.15 or less.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28309385A JPS62146138A (en) | 1985-12-18 | 1985-12-18 | Heat-resistant vessel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28309385A JPS62146138A (en) | 1985-12-18 | 1985-12-18 | Heat-resistant vessel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62146138A true JPS62146138A (en) | 1987-06-30 |
Family
ID=17661123
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP28309385A Pending JPS62146138A (en) | 1985-12-18 | 1985-12-18 | Heat-resistant vessel |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62146138A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2239635A1 (en) | 2009-04-07 | 2010-10-13 | Canon Kabushiki Kaisha | Image forming apparatus |
-
1985
- 1985-12-18 JP JP28309385A patent/JPS62146138A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2239635A1 (en) | 2009-04-07 | 2010-10-13 | Canon Kabushiki Kaisha | Image forming apparatus |
| US8270874B2 (en) | 2009-04-07 | 2012-09-18 | Canon Kabushiki Kaisha | Image forming apparatus having fixing unit pressure release |
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