JP2563773B2 - Polyester shrink-link label with excellent low-temperature heat shrinkability - Google Patents
Polyester shrink-link label with excellent low-temperature heat shrinkabilityInfo
- Publication number
- JP2563773B2 JP2563773B2 JP60236883A JP23688385A JP2563773B2 JP 2563773 B2 JP2563773 B2 JP 2563773B2 JP 60236883 A JP60236883 A JP 60236883A JP 23688385 A JP23688385 A JP 23688385A JP 2563773 B2 JP2563773 B2 JP 2563773B2
- Authority
- JP
- Japan
- Prior art keywords
- label
- present
- film
- temperature heat
- polyethylene terephthalate
- 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.)
- Expired - Fee Related
Links
- 229920000728 polyester Polymers 0.000 title claims description 11
- -1 polyethylene terephthalate Polymers 0.000 claims description 15
- 229920000139 polyethylene terephthalate Polymers 0.000 claims description 14
- 239000005020 polyethylene terephthalate Substances 0.000 claims description 14
- 229920001634 Copolyester Polymers 0.000 claims description 8
- 150000002009 diols Chemical class 0.000 claims description 7
- 238000001125 extrusion Methods 0.000 claims description 5
- 239000002904 solvent Substances 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 4
- OFOBLEOULBTSOW-UHFFFAOYSA-N Malonic acid Chemical compound OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 claims description 3
- 125000003118 aryl group Chemical group 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- ORLQHILJRHBSAY-UHFFFAOYSA-N [1-(hydroxymethyl)cyclohexyl]methanol Chemical compound OCC1(CO)CCCCC1 ORLQHILJRHBSAY-UHFFFAOYSA-N 0.000 claims 1
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 16
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 description 6
- WOZVHXUHUFLZGK-UHFFFAOYSA-N dimethyl terephthalate Chemical compound COC(=O)C1=CC=C(C(=O)OC)C=C1 WOZVHXUHUFLZGK-UHFFFAOYSA-N 0.000 description 6
- 230000009477 glass transition Effects 0.000 description 5
- 239000000203 mixture Substances 0.000 description 4
- 239000002699 waste material Substances 0.000 description 4
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- 229920006300 shrink film Polymers 0.000 description 3
- 229920006257 Heat-shrinkable film Polymers 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- ONIHPYYWNBVMID-UHFFFAOYSA-N diethyl benzene-1,4-dicarboxylate Chemical compound CCOC(=O)C1=CC=C(C(=O)OCC)C=C1 ONIHPYYWNBVMID-UHFFFAOYSA-N 0.000 description 2
- BTVWZWFKMIUSGS-UHFFFAOYSA-N dimethylethyleneglycol Natural products CC(C)(O)CO BTVWZWFKMIUSGS-UHFFFAOYSA-N 0.000 description 2
- 238000004806 packaging method and process Methods 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 229920006267 polyester film Polymers 0.000 description 2
- 229920000915 polyvinyl chloride Polymers 0.000 description 2
- 239000004800 polyvinyl chloride Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000002216 antistatic agent Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- VEIOBOXBGYWJIT-UHFFFAOYSA-N cyclohexane;methanol Chemical compound OC.OC.C1CCCCC1 VEIOBOXBGYWJIT-UHFFFAOYSA-N 0.000 description 1
- 125000000118 dimethyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 229920001707 polybutylene terephthalate Polymers 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
Landscapes
- Wrappers (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Description
【発明の詳細な説明】 本発明は特に低温熱収縮性の優れた特定成分組成から
なるポリエステル系シュリンクラベルに関する。DETAILED DESCRIPTION OF THE INVENTION The present invention particularly relates to a polyester-based shrink label having a specific component composition having excellent low-temperature heat shrinkability.
筒状のシュリンクラベルとしては、ポリ塩化ビニルか
らなる熱収縮性フイルムを用いたものが従来より多用さ
れているが、このものは強度が不足しがちなので、例え
ば１用容器などの大型容器類等の破裂時の飛散防止用
保護ラベル等としては、容器内のガス圧が高過ぎてもう
一つ十分でない所がある上に、透明性にやや不充分であ
り、かつ腰が弱く、滑りが悪いこともあって機械包装を
行なう際の取扱いが難しく、そのため機械包装性に若干
劣ることも指摘されている。更にその廃棄物、塵埃等は
焼却時に塩酸ガスを発生し、これが原因で炉を腐蝕させ
ることがあり、各種ごみ処理団体から改善を要求される
ということもあった。As a cylindrical shrink label, one using a heat shrinkable film made of polyvinyl chloride has been widely used from the past, but since this tends to lack strength, for example, a large container such as a container for 1 or the like. As a protective label, etc., for preventing scattering at the time of rupture, there is another place where the gas pressure inside the container is too high and the transparency is slightly insufficient, and the waist is weak and slipping is bad. In some cases, it is difficult to handle when performing machine packaging, and it is pointed out that the machine packaging property is slightly inferior. Further, the waste, dust and the like generate hydrochloric acid gas during incineration, which may cause the furnace to corrode, and various waste disposal organizations have requested improvement.
一方、テレフタル酸とエチレングリコールを重縮合し
て得られる通常のポリエステル系フィルムは、耐薬品
性、耐溶剤性、機械的性質、透明性等の各種物性に優れ
ている上に燃焼カロリーが少なく、かつ有害物質が生じ
ないので、廃棄物処理がし易い反面、ヒートシール性に
乏しく、また低温熱収縮性を欠如し、更に、熱収縮性も
十分でなく、シュリンクラベルとしては一般に使用され
ていない現状である。On the other hand, a normal polyester film obtained by polycondensing terephthalic acid and ethylene glycol is excellent in various physical properties such as chemical resistance, solvent resistance, mechanical properties, and transparency, and has a small amount of calories burned. And since it does not generate harmful substances, it is easy to dispose of waste, but it has poor heat sealability, lacks low-temperature heat shrinkability, and has insufficient heat shrinkability, and is not generally used as a shrink label. The current situation.
こうした点を改良するものとして、本出願人は特開昭
59−97175号（以下、先願と言う）を出願したが、その
後、この先願は長期間の連続運転により破れが多発す
る、及び光線の加減や方向によっては白っぽい印象を与
える等の問題点があることが判明した。このため前記先
願に係るシュリンクラベルも実用化されていない現状で
ある。To improve these points, the applicant of the present invention
No. 59-97175 (hereinafter referred to as "prior application") was filed, but after that, this prior application had problems such as frequent breakage due to continuous operation for a long time, and giving a whitish impression depending on the adjustment and direction of the light rays. It turned out to be. For this reason, the shrink label according to the prior application has not yet been put into practical use.
本発明者らはポリエステル系フィルムの特性を有する
上に、ポリ塩化ビニル性シュリンクラベルに匹敵すべき
低温熱収縮性等の各種特性を有する各種のポリエステル
を探索した結果、本発明に係る特定のコポリエステルの
ガラス転移点が約81℃であるということに着目し、ガラ
ス転移点が前記の値に近い他のポリエステル系重合体を
混ぜる程、長期間の連続運転による破れが少なく、光線
の加減や方向によって現れる白っぽい印象を与えること
の少ないシュリンクラベルを得ることができるという知
見を得た。こうした知見に基ずき、本発明者らは先願に
係るガラス転移点が約60℃のポリブチレンテレフタレー
トに代えて、同点が約70℃のポリエチレンテレフタレー
トをプレンドすることにより先願の改良を図り、ついに
本発明を成すに至った。このようして、本発明者らは、
ついに筒状のシュリンクラベルとして有用なポリエステ
ル系熱収縮性フィルムを見出すに至ったものであり、本
発明の要旨とするところは、芳香族ジカルボン酸成分と
ジオール成分とかなり、かつジオール成分は1.4−シク
ロヘクサンジメタノールが10〜40モル％存在するコポリ
エステル50〜90重量％と；ポリエチレンテレフタレート
10〜50重量％とからなると共に、フラット押出成形法に
より製膜され、かつテンターにより横１軸延伸されてな
るフラット状フィルムを溶剤によるセンターシールによ
り筒状のシュリンクラベルとして形成され、かつ該ラベ
ルの円周方向と前記横１軸延伸方向とを一致させた構成
を有するポリエチレンテレフタレート製大型容器用低温
熱収縮性の優れたポリエステル系シュリンクラベルを提
供せんとする点にある。The present inventors have searched for various polyesters having various properties such as low temperature heat shrinkability comparable to that of polyvinyl chloride shrink labels, in addition to having the properties of polyester film, and as a result, specific polyesters according to the present invention have been obtained. Paying attention to the fact that the glass transition point of polyester is about 81 ° C., the more the glass transition point is mixed with another polyester-based polymer close to the above value, the less the breakage due to continuous operation for a long time, We have found that it is possible to obtain a shrink label that does not give a whitish impression depending on the direction. Based on these findings, the present inventors have improved the prior application by plotting polyethylene terephthalate having the same glass transition point of about 70 ° C. instead of polybutylene terephthalate having the glass transition point of the earlier application of about 60 ° C. Finally, the present invention was accomplished. In this way, the inventors
Finally, the inventors have come to find a polyester-based heat-shrinkable film useful as a tubular shrink label, and the gist of the present invention is that the aromatic dicarboxylic acid component and the diol component are considerably and the diol component is 1.4- 50-90% by weight of copolyester with cyclohexane dimethanol in the presence of 10-40% by mole; polyethylene terephthalate
A flat film, which is 10 to 50% by weight, is formed by a flat extrusion molding method, and is uniaxially stretched by a tenter, is formed as a cylindrical shrink label by a center seal with a solvent, and the label is formed. Another object of the present invention is to provide a polyester-based shrink label excellent in low-temperature heat shrinkability for large-sized containers made of polyethylene terephthalate, which has a structure in which the circumferential direction and the lateral uniaxial stretching direction are matched.
以下本発明を実施例とともに詳細に説明する。 The present invention will be described in detail below with reference to examples.
本発明に係るコポリエステルの芳香族ジカルボン酸成
分としては、テレタフル酸もしくはその誘導体、例えば
テレタフル酸ジメチル、テレフタル酸ジエチル等を例示
でき、ジオール成分としてはエチレングリコール、プロ
ピレングリコール等を例示できる。但し本発明では前記
例示に限定されるものでない。前記ジオール成分中には
10〜40モル％の1.4−シクロヘキサンジメタノールが存
在するものが必要であり、このさい15〜35モル％存在す
るのがより好ましい。1.4−シクロヘキサンジメタノー
ルが40モル％より多いと粘性が高くなって押出成形が困
難になり、10モル％より少ないと耐衝撃性やヒートシー
ル性が低下する。本発明に係るコポリエステルの最も好
ましいものとして、テレフタル酸もしくはその誘導体と
1.4−シクロヘキサンジメタノールを10〜40モル％含有
するエチレングリコールとからなるもので例示できる。Examples of the aromatic dicarboxylic acid component of the copolyester according to the present invention include teretaful acid or a derivative thereof such as dimethyl teletafluate and diethyl terephthalate, and examples of the diol component include ethylene glycol and propylene glycol. However, the present invention is not limited to the above example. In the diol component
It is necessary that 10 to 40 mol% of 1.4-cyclohexanedimethanol is present, more preferably 15 to 35 mol%. If the content of 1.4-cyclohexanedimethanol is more than 40 mol%, the viscosity becomes high and extrusion molding becomes difficult, and if it is less than 10 mol%, impact resistance and heat sealability are deteriorated. The most preferable copolyester according to the present invention is terephthalic acid or a derivative thereof.
An example thereof is ethylene glycol containing 10 to 40 mol% of 1.4-cyclohexanedimethanol.
次に本発明に係るポリエチレンテレフタレートとして
は、例えばテレフタル酸もしくはその誘導体（例えばテ
レフタル酸ジメチル、テレフタル酸ジエチル等）とエチ
レングリコール等の、ジオールとから得られる重合体を
例示でき、一般にポリエチレンテレフタレートと呼称さ
れるものである。この際前記コポリエステル50〜90重量
％に対し、このポリエチレンテレフタレートは10〜50重
量％を用いる。但し本発明では上記成分組成の他に各種
の帯電防止剤、滑剤その他適宜の充填剤等を必要に応じ
て添加することは一向に差支えない。なお本発明でコポ
リエステルの量が50重量％より少ないと易ヒートシール
性や高収縮性が得難く、90重量％超の場合は強度の低下
が大きく風合、腰の強さの面で見劣りする場合が多い。Next, as the polyethylene terephthalate according to the present invention, for example, a polymer obtained from terephthalic acid or a derivative thereof (eg, dimethyl terephthalate, diethyl terephthalate, etc.) and a diol such as ethylene glycol can be exemplified, and is generally called polyethylene terephthalate. It is what is done. At this time, the polyethylene terephthalate is used in an amount of 10 to 50% by weight based on 50 to 90% by weight of the copolyester. However, in the present invention, various antistatic agents, lubricants and other suitable fillers may be added, if necessary, in addition to the above component composition. In the present invention, if the amount of copolyester is less than 50% by weight, it is difficult to obtain easy heat sealability and high shrinkability, and if it exceeds 90% by weight, the strength is greatly reduced and the texture and waist strength are inferior. Often.
本発明の上記特定成分組成によるラベルは、通常必要
量の原料樹脂をポリブレンドし、押出製膜後に延伸工程
を経たフィルムから作成されるが、一般にはＴダイ法等
のフラット押出成形法により製膜され、テンターにより
横１軸延伸を行うことによって作成される。延伸温度と
しては、例えば60〜120℃の如き、いわゆる低温度域で
延伸を行なうことが好ましい。勿論前記の温度範囲は例
示に止まり、本発明ではこの範囲に限定されるものでな
い。また、筒状のシュリンクラベルとした際に、縦軸方
向の熱収縮率を０％近傍になるよう延伸を行なうことが
ラベルを作成する上で好適であるが、勿論熱収縮率は必
要に応じて適宜に定めれば良い。フィルムからラベルを
作成するにはフラット状フィルムをセンターシールとし
て筒状とすることにより行なうが、横１軸延伸されたフ
ィルムを用いるので、その延伸方向がラベルの円周方向
と一致するようにする必要がある。The label having the above-mentioned specific component composition of the present invention is usually made from a film obtained by polyblending a necessary amount of raw material resin and subjecting it to a stretching step after extrusion film formation. Generally, it is produced by a flat extrusion molding method such as a T-die method. It is made into a film and subjected to transverse uniaxial stretching with a tenter. The stretching temperature is preferably in the so-called low temperature range such as 60 to 120 ° C. Of course, the above temperature range is merely an example, and the present invention is not limited to this range. Further, in the case of a tubular shrink label, it is suitable for making the label so that the heat shrinkage in the vertical axis direction is close to 0%, but of course the heat shrinkage may be adjusted as needed. It may be determined as appropriate. A label is formed from a film by making a flat film into a cylindrical shape as a center seal, but since a horizontally uniaxially stretched film is used, its stretching direction should match the circumferential direction of the label. There is a need.
本発明に係るシュリンクラベルは、ポリエチレンテレ
フタレート製容器に用いられこれにより再利用に供する
際に、該容器からラベルを取り除く必要がなく、両者１
体で再利用に供し得ることも可能であるという利点があ
る。The shrink label according to the present invention is used in a container made of polyethylene terephthalate, whereby it is not necessary to remove the label from the container when it is reused.
It has the advantage that it can be reused by the body.
しかも、本発明はポリエチレンテレフタレート製の例
えば１容器等の如き大型容器類に適応することによ
り、一層効果が発揮される。即ち、本発明に係るシュリ
ンクラベルは破断点強度、破断点伸度等の機械的性質に
格別に優れていので、内容物を充填した際の容器内の内
圧が高い大型容器類に適応したとしても、容器の破裂に
際し、破片の飛散等を防止することができ、大型容器類
の保護用部材として、十分に機能すると言う効果を奏す
る。Moreover, the present invention is more effective when applied to large containers such as one container made of polyethylene terephthalate. That is, since the shrink label according to the present invention is exceptionally excellent in mechanical properties such as strength at break and elongation at break, even if it is applied to large containers having a high internal pressure inside the container when the contents are filled. In addition, when the container is ruptured, it is possible to prevent scattering of fragments and the like, and it is possible to sufficiently function as a member for protecting large containers.
その上、本発明はガラス転移点が近似する２つのポリ
エステル系重合体を混ぜることにより長期間の連続運転
による破れが少なく、光線の加減や方向によって現れる
白っぽい感じの少ない熱収縮性ラベルを得ることができ
るという格別の効果を奏するものである。In addition, the present invention provides a heat-shrinkable label which is less liable to break due to continuous operation for a long period of time by mixing two polyester polymers having glass transition points close to each other, and which does not appear whitish depending on the amount and direction of light rays and has a whitish feeling. It has the special effect of being able to.
本発明は以上の通りであり、本発明のシュリンクラベ
ルは低温収縮性が優れているので、低温で収縮が可能な
上に、廃棄物等の焼却時に炉等を腐食させることはな
く、各種物性にも優れた極めて有用なもので今後の需要
が大いに期待されているものである。The present invention is as described above, and since the shrink label of the present invention has excellent low-temperature shrinkability, it is possible to shrink at low temperature and does not corrode the furnace etc. when incinerating waste, etc. It is also extremely useful and highly demanded in the future.
つぎに実施例によって本発明をさらに詳しく説明す
る。Next, the present invention will be described in more detail by way of examples.
＜実施例＞ テレフタル酸ジメチルと1.4−シクロヘキサンジメタ
ノールを30モル％含有するエチレングリコールから得ら
れたコポリエステルと：テレフタル酸ジメチルとエチレ
ングリコールから得られたポリエチレンテレフタレート
とをポリブレンドしてなる組成物をＴダイスを用いて20
0μの厚さに押出し、ついでテンターにより75℃で５倍
の横１軸延伸を行ない低温熱収縮性を有する厚さ40μの
ポリエステル系シュリンクフィルムを得た。このフィル
ムに印刷を施し、径約90mmの筒状シュリンクラベルを作
るべく必要な寸法に切断した。そして適当な溶剤なヒー
トシールによりセンターシールを施し、筒状のシュリン
クラベルを作成した。この際ラベルの円周方向と延伸方
向を一致させるようにした。<Example> A composition obtained by polyblending a copolyester obtained from dimethyl terephthalate and ethylene glycol containing 30% by mole of 1.4-cyclohexanedimethanol: a polyethylene terephthalate obtained from dimethyl terephthalate and ethylene glycol. Using T-die 20
The film was extruded to a thickness of 0 μ, and then uniaxially stretched 5 times at 75 ° C. by a tenter to obtain a 40 μ-thick polyester shrink film having low-temperature heat shrinkability. The film was printed and cut to the required dimensions to make a tubular shrink label with a diameter of about 90 mm. Then, center sealing was performed by heat sealing with an appropriate solvent to prepare a tubular shrink label. At this time, the circumferential direction of the label was made to coincide with the stretching direction.
シュリンクフィルムの作成に当っては、コポリエステ
ルとポリエチレンテレフタレートの配合比については実
験No1〜No3の如く種々変えて実験し、そのデータを第１
表に示した。In making the shrink film, the copolyester and polyethylene terephthalate compounding ratios were varied as in Experiment No. 1 to No. 3 and the data were
Shown in the table.
この表からも解る通り、本発明に係るラベルを作成す
るためのシュリンクフィルムは極めて優れた低温収縮性
を有する他、透明性、腰強さ、光沢等の諸物性にも優れ
たものであることが解る。As can be seen from this table, the shrink film for producing the label according to the present invention has extremely excellent low temperature shrinkability, and also has excellent physical properties such as transparency, waist strength and gloss. Understand.
更に、斯るラベルを胴径86mmの１用ポリエチレンテ
レフタレート製容器に被せ、シュリンクトンネルを利用
して熱収縮せしめ、容器に被覆せしめたところ、収縮時
の軸方向の寸法変化がなく、美麗な被覆容器が得られ
た。また、斯るラベルは耐溶剤性が良好のため多色の美
しい印刷が施されたものであった。Furthermore, when such a label was put on a container made of polyethylene terephthalate for 1 with a body diameter of 86 mm and heat-shrinked using a shrink tunnel to cover the container, there was no dimensional change in the axial direction when shrinking, and a beautiful coating. A container was obtained. In addition, since such a label has good solvent resistance, it has been subjected to beautiful multicolor printing.
次に前記実施例（２）に係るラベルの耐候性、破裂テ
スト、燃焼テストの結果について第２表に示す。この
際、破裂テストは前記ラベルが熱収縮被覆されたポリエ
チレンテレフタレート製容器を使用した。Next, Table 2 shows the results of the weather resistance, the burst test, and the combustion test of the label according to Example (2). At this time, for the burst test, a polyethylene terephthalate container having the label heat-shrink coated was used.
これらのデータからも明らかなように、本発明のもの
は明細書記載の通りの格別なる効果を奏するが、比較例
（１）のものは収縮率が出にくく不必要な縦収縮率が大
き過ぎるので好ましくなく、比較例（２）のものは温度
上昇に伴なう収縮率の増加が実施例のものに比べ、なだ
らかでなく、75℃近辺で急激に上昇するため美麗な被覆
効果が得られにくかった。As is clear from these data, the present invention has a remarkable effect as described in the specification, but the comparative example (1) has a low shrinkage rate and an unnecessary longitudinal shrinkage rate is too large. The comparative example (2) is not preferable, and the increase in shrinkage rate with temperature rise is less gentle than that of the example, and sharply increases at around 75 ° C., so that a beautiful covering effect is obtained. It was difficult.
尚、第１表、第２表における縦方向、緯方向とは、前
者はフイルムの成型方向、後者は成型方向と直角方向即
ち延伸方向を言うものである。The longitudinal and weft directions in Tables 1 and 2 refer to the film forming direction in the former and the direction perpendicular to the forming direction in the latter, that is, the drawing direction.
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 昭57−42726（ＪＰ，Ａ) 特開 昭61−64430（ＪＰ，Ａ) 特開 昭61−203161（ＪＰ，Ａ) 特開 昭57−159618（ＪＰ，Ａ) 特開 昭59−97175（ＪＰ，Ａ) 特開 昭57−194950（ＪＰ，Ａ) ─────────────────────────────────────────────────── --- Continued from the front page (56) References JP-A-57-42726 (JP, A) JP-A-61-64430 (JP, A) JP-A-61-203161 (JP, A) JP-A-57- 159618 (JP, A) JP 59-97175 (JP, A) JP 57-194950 (JP, A)
Claims (1)
からなり、かつジオール成分は1.4シクロヘキサンジメ
タノールが10〜40モル％存在するコポリエステル50〜90
重量％と；ポリエチレンテレフタレート10〜50重量％と
からなると共に、フラット押出成形法により製膜され、
かつテンターにより横１軸延伸されてなるフラット状フ
ィルムを溶剤によるセンターシールにより筒状のシュリ
ンクラベルとして形成され、かつ該ラベルの円周方向と
前記横１軸延伸方向とを一致させた構成を有することを
特徴とするポリエチレンテレフタレート製大型容器用低
温熱収縮性の優れたポリエステル系シュリンクラベル。1. A copolyester 50-90 comprising an aromatic dicarboxylic acid component and a diol component, the diol component comprising 1.4 to 40 mol% of cyclohexanedimethanol.
% By weight; polyethylene terephthalate 10 to 50% by weight, and a film is formed by a flat extrusion molding method,
In addition, a flat film formed by uniaxial stretching by a tenter is formed as a cylindrical shrink label by center sealing with a solvent, and the circumferential direction of the label and the uniaxial stretching direction are aligned. A polyester shrink label with excellent low-temperature heat shrinkability for large containers made of polyethylene terephthalate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60236883A JP2563773B2 (en) | 1985-10-22 | 1985-10-22 | Polyester shrink-link label with excellent low-temperature heat shrinkability |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60236883A JP2563773B2 (en) | 1985-10-22 | 1985-10-22 | Polyester shrink-link label with excellent low-temperature heat shrinkability |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6295341A JPS6295341A (en) | 1987-05-01 |
| JP2563773B2 true JP2563773B2 (en) | 1996-12-18 |
Family
ID=17007193
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60236883A Expired - Fee Related JP2563773B2 (en) | 1985-10-22 | 1985-10-22 | Polyester shrink-link label with excellent low-temperature heat shrinkability |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2563773B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20140057053A (en) * | 2012-11-02 | 2014-05-12 | 주식회사 후성테크 | Electric connector |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63122519A (en) * | 1986-11-12 | 1988-05-26 | Diafoil Co Ltd | Polyester shrink film |
| US4983653A (en) * | 1986-11-12 | 1991-01-08 | Diafoil Company, Ltd. | Polyester shrinkable film containing benzotriazole |
| EP0267799B1 (en) * | 1986-11-12 | 1993-08-18 | Diafoil Hoechst Co., Ltd | Shrinkable polyester film |
| JPS63150331A (en) * | 1986-12-15 | 1988-06-23 | Diafoil Co Ltd | Shrinkable polyester film |
| JPH0777757B2 (en) * | 1987-10-26 | 1995-08-23 | ダイアホイルヘキスト株式会社 | Polyester shrink film |
| JPH01258935A (en) * | 1988-04-09 | 1989-10-16 | Diafoil Co Ltd | Polyester contractive film |
| JPS63139725A (en) * | 1986-12-02 | 1988-06-11 | Diafoil Co Ltd | Polyester group shrinkable film |
| JP2893286B2 (en) * | 1990-05-17 | 1999-05-17 | グンゼ株式会社 | Heat-shrinkable foamed composite film and method for producing the same |
| JP2564388Y2 (en) * | 1991-06-25 | 1998-03-09 | 大日本印刷株式会社 | Shrinkable label |
| JP3692976B2 (en) | 2001-07-11 | 2005-09-07 | 東洋紡績株式会社 | Heat-shrinkable polyester film |
| JP3692979B2 (en) * | 2001-07-26 | 2005-09-07 | 東洋紡績株式会社 | Heat-shrinkable polyester film |
| JP3678186B2 (en) | 2001-08-01 | 2005-08-03 | 東洋紡績株式会社 | Heat-shrinkable polyester film roll |
| JP2005173611A (en) * | 2004-12-09 | 2005-06-30 | Fuji Seal International Inc | Shrinkable label for plastic bottle and plastic bottle with shrinkable label |
| CN117440982A (en) * | 2021-08-31 | 2024-01-23 | 日本他喜龙希爱株式会社 | Polyester heat shrinkable film |
| CN115895202B (en) * | 2022-10-21 | 2025-04-01 | 无锡崇华新材料科技有限公司 | A polyester heat shrinkable film |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5742726A (en) * | 1980-08-29 | 1982-03-10 | Kohjin Co Ltd | Polyester film for shrink packaging |
| JPS57159618A (en) * | 1981-03-27 | 1982-10-01 | Gunze Ltd | Highly shrinkable polyester film excellent in heat seal |
| JPS6164430A (en) * | 1984-09-07 | 1986-04-02 | Okura Ind Co Ltd | Heat-shrinkable polyester film |
| JPH0741668B2 (en) * | 1985-03-05 | 1995-05-10 | 三井石油化学工業株式会社 | Heat shrink film |
-
1985
- 1985-10-22 JP JP60236883A patent/JP2563773B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20140057053A (en) * | 2012-11-02 | 2014-05-12 | 주식회사 후성테크 | Electric connector |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6295341A (en) | 1987-05-01 |
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Free format text: JAPANESE INTERMEDIATE CODE: R250 |
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| LAPS | Cancellation because of no payment of annual fees |