JPH0628936B2 - Heat-shrinkable sheet with excellent metallic luster - Google Patents
Heat-shrinkable sheet with excellent metallic lusterInfo
- Publication number
- JPH0628936B2 JPH0628936B2 JP61181755A JP18175586A JPH0628936B2 JP H0628936 B2 JPH0628936 B2 JP H0628936B2 JP 61181755 A JP61181755 A JP 61181755A JP 18175586 A JP18175586 A JP 18175586A JP H0628936 B2 JPH0628936 B2 JP H0628936B2
- Authority
- JP
- Japan
- Prior art keywords
- heat
- shrinkable
- film
- sheet
- layer
- 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
- 239000002932 luster Substances 0.000 title description 21
- 239000010410 layer Substances 0.000 claims description 40
- 239000011347 resin Substances 0.000 claims description 33
- 229920005989 resin Polymers 0.000 claims description 33
- 229910052751 metal Inorganic materials 0.000 claims description 30
- 239000002184 metal Substances 0.000 claims description 30
- 229920006257 Heat-shrinkable film Polymers 0.000 claims description 27
- 239000010409 thin film Substances 0.000 claims description 24
- 239000012790 adhesive layer Substances 0.000 claims description 15
- 239000011241 protective layer Substances 0.000 claims description 9
- 229920000915 polyvinyl chloride Polymers 0.000 claims description 5
- 239000004800 polyvinyl chloride Substances 0.000 claims description 5
- 238000010030 laminating Methods 0.000 claims description 4
- 239000000853 adhesive Substances 0.000 description 21
- 230000001070 adhesive effect Effects 0.000 description 21
- 239000010408 film Substances 0.000 description 15
- 238000000034 method Methods 0.000 description 7
- 239000011888 foil Substances 0.000 description 6
- 238000007740 vapor deposition Methods 0.000 description 6
- 229920006267 polyester film Polymers 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000001771 vacuum deposition Methods 0.000 description 4
- 230000008602 contraction Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 229920002803 thermoplastic polyurethane Polymers 0.000 description 3
- RTTZISZSHSCFRH-UHFFFAOYSA-N 1,3-bis(isocyanatomethyl)benzene Chemical compound O=C=NCC1=CC=CC(CN=C=O)=C1 RTTZISZSHSCFRH-UHFFFAOYSA-N 0.000 description 2
- 239000004925 Acrylic resin Substances 0.000 description 2
- 229920000178 Acrylic resin Polymers 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 101000650578 Salmonella phage P22 Regulatory protein C3 Proteins 0.000 description 2
- 101001040920 Triticum aestivum Alpha-amylase inhibitor 0.28 Proteins 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- -1 polyethylene Polymers 0.000 description 2
- 239000003566 sealing material Substances 0.000 description 2
- 230000037303 wrinkles Effects 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- 239000004640 Melamine resin Substances 0.000 description 1
- 229920000877 Melamine resin Polymers 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 239000004820 Pressure-sensitive adhesive Substances 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 229920006311 Urethane elastomer Polymers 0.000 description 1
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000009924 canning Methods 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 239000002537 cosmetic Substances 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000003651 drinking water Substances 0.000 description 1
- 235000020188 drinking water Nutrition 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 235000012907 honey Nutrition 0.000 description 1
- 238000007733 ion plating Methods 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 238000001465 metallisation Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 229920006337 unsaturated polyester resin Polymers 0.000 description 1
Landscapes
- Wrappers (AREA)
- Laminated Bodies (AREA)
Description
【発明の詳細な説明】 産業上の利用分野 本発明は、熱収縮性フィルムに金属薄膜を積層してなる
熱収縮性シート、特にビンのキャップのカバー（所謂、
キャップシール）等に効果的に適用可能な熱収縮性シー
トに関するものである。Description: TECHNICAL FIELD The present invention relates to a heat-shrinkable sheet obtained by laminating a metal thin film on a heat-shrinkable film, particularly a cap of a bottle (so-called,
The present invention relates to a heat-shrinkable sheet that can be effectively applied to cap seals and the like.
従来技術 金属光沢を有する熱収縮性シートとしては、 (1) 熱収縮性フィルムに金属光沢を有する塗料を塗布
したもの、 (2) 熱収縮性フィルムに金属蒸着特性に優れた硬い樹
脂を塗布し、その後金属蒸着処理したもの、 (3) 熱収縮性フィルムに収縮処理時の温度でも変化し
ない金属箔や蒸着フィルムなどを貼合わせたもの などが一般に使用されている。Prior art As a heat-shrinkable sheet having a metallic luster, (1) a heat-shrinkable film coated with a coating having a metallic luster, (2) a heat-shrinkable film coated with a hard resin excellent in metal deposition characteristics After that, metal vapor deposition treatment is performed, and (3) heat-shrinkable film with metal foil or vapor-deposited film that does not change even at the temperature during shrinkage treatment is generally used.
しかし、(1)のシートは金属光沢に劣り、(2)のシートは
熱収縮時の収縮率を３％以下に管理しなければ、均質な
表面状態を得ることができないため、使用に当たって非
常に作業性が悪く、ビンのキャップのカバーなどとして
機械装填することは出来なかった。また(3)のシートは
金属光沢の点ではあまり問題はないが、積層フィルム間
の収縮性の差から、収縮時に表面に複雑な皺を生じ、一
体性に欠け、実用化し難いものであった。However, the sheet of (1) is inferior in metallic luster, and the sheet of (2) cannot obtain a uniform surface condition unless the shrinkage ratio at the time of heat shrinkage is controlled to 3% or less. The workability was poor, and it was not possible to machine-load it as a bottle cap cover. In addition, the sheet of (3) does not have much problem in terms of metallic luster, but due to the difference in shrinkability between laminated films, complicated wrinkles are generated on the surface during shrinkage, lack of integrity, and it is difficult to put to practical use. .
発明が解決しようとする問題 ビンのキャップのカバーなどとして機械装填するために
は、熱収縮性シートは１０％以上熱収縮可能であり、１
０％以上熱収縮させても所望の外観を有することが必要
であるが、前述の如く金属光沢を有する熱収縮性シート
で、このような要求を満足するものは存在しなかった。Problems to be Solved by the Invention A heat-shrinkable sheet can be heat-shrinkable by 10% or more for mechanical loading as a cover of a bottle cap or the like.
It is necessary to have a desired appearance even when heat-shrinked by 0% or more, but as described above, there is no heat-shrinkable sheet having a metallic luster that satisfies such requirements.
そこで、本発明は、このような要求を満足し、ビンのキ
ャップのカバーなどとして作業性よく機械装填可能な熱
収縮性シートを提供することを課題とする。Therefore, an object of the present invention is to provide a heat-shrinkable sheet that satisfies such requirements and can be machine-loaded with good workability as a cover for a bottle cap or the like.
問題を解決するための手段 本発明では、熱収縮性シートを、ａ）熱収縮性フィルム
(1)、ｂ）２００〜１０００％の伸度を有する接着剤層
(2)、ｃ）金属薄膜(3)及びｄ）伸度が１０％以下である
実質的に非熱収縮性の樹脂薄層(4)を順次積層してなる
シートであり、上記樹脂薄層(4)の厚さを、上記熱収縮
性フィルム(1)の厚さの５％以下とすることによって、
上記課題を解決し、安定して１０％以上の熱収縮可能な
金属光沢に優れた熱収縮性シートの提供を可能とした。
なお、本発明における伸度はいずれもJIS K-7113によっ
て測定した値を示す。Means for Solving the Problems In the present invention, a heat-shrinkable sheet is used as a) heat-shrinkable film.
(1), b) An adhesive layer having an elongation of 200 to 1000%
(2), c) a metal thin film (3) and d) a sheet formed by sequentially laminating a substantially non-heat-shrinkable resin thin layer (4) having an elongation of 10% or less, wherein the resin thin layer is By making the thickness of (4) 5% or less of the thickness of the heat-shrinkable film (1),
It has become possible to solve the above problems and provide a heat-shrinkable sheet excellent in metallic luster capable of stably heat-shrinking 10% or more.
The elongation in the present invention is a value measured according to JIS K-7113.
即ち、本発明のシートは、熱収縮度の著しく異なる層の
間に金属薄膜が挟持された積層シートであるが、熱収縮
性フィルム表面に、金属薄膜が、著しく大きな伸度を有
する柔軟な接着剤層で接着されているため、加熱収縮時
に、接着剤層にずれを生じ、金属薄膜やその上の非熱収
縮性の樹脂薄層が熱収縮性フィルムの強度な収縮に直接
影響を受けることなく、比較的安定に存在し、シートが
１０％以上収縮しても、金属薄膜が破壊され金属光沢を
失ったり、また非熱収縮性の樹脂薄層に不自然な皺が生
じたりせず、非収縮時と変化なく優れた金属光沢を有す
る均質な収縮シートとなる。That is, the sheet of the present invention is a laminated sheet in which a metal thin film is sandwiched between layers having remarkably different heat shrinkage, but the metal thin film is a flexible adhesive having a remarkably large elongation on the surface of the heat shrinkable film. Since the adhesive layer adheres to the adhesive layer, the adhesive layer shifts during heat shrinkage, and the metal thin film and the non-heat-shrinkable resin thin layer on it are directly affected by the strong shrinkage of the heat-shrinkable film. It is relatively stable, and even if the sheet shrinks by 10% or more, the metal thin film is not destroyed, the metallic luster is not lost, and unnatural wrinkles do not occur in the non-heat-shrinkable resin thin layer. It becomes a uniform shrinkable sheet with excellent metallic luster, which is the same as when it did not shrink.
なお、本発明で使用する熱収縮性フィルムは、１０％以
上の熱収縮性を有するフィルムであればよく、一般に熱
収縮性フィルムとして市販されるフィルムがいずれも使
用できる。代表的な素材としては、例えばポリ塩化ビニ
ル、ポリエチレン、ポリプロピレン、ポリエステルなど
がある。The heat-shrinkable film used in the present invention may be a film having a heat-shrinkability of 10% or more, and any film generally commercially available as a heat-shrinkable film can be used. Typical materials include, for example, polyvinyl chloride, polyethylene, polypropylene and polyester.
次に、金属薄膜を接着する伸度の大きい接着剤層を形成
する接着剤としては、乾燥状態で２００〜１０００％の
伸度を有するものであればよく、このような接着剤とし
ては、例えばアクリル樹脂系接着剤、ウレタンその他の
ゴム系接着剤、塩化ビニル・酢酸ビニル共重合体系接着
剤などの使用が好ましい。Next, the adhesive forming the adhesive layer having a high elongation for adhering the metal thin film may be any adhesive having an elongation of 200 to 1000% in a dry state. It is preferable to use an acrylic resin-based adhesive, urethane or other rubber-based adhesive, or vinyl chloride / vinyl acetate copolymer-based adhesive.
金属薄膜は、アルミニウム、クロム、ニッケル、銀、
錫、その他の金属又は合金いずれからなるものであって
もよく、また形成法も特に限定されないが、一般に真空
蒸着、スパッタリング、イオンプレーティングなどによ
るのが好ましく、特に真空蒸着によるのが好ましい。Metal thin films are aluminum, chrome, nickel, silver,
It may be made of tin, any other metal or alloy, and the forming method is not particularly limited, but generally, vacuum deposition, sputtering, ion plating or the like is preferable, and vacuum deposition is particularly preferable.
次に、非熱収縮性の樹脂薄層は、金属薄膜が傷ついた
り、外気に侵されるのを防止するだけでなく、熱収縮時
に、弾性のない金属薄膜が接着剤層のずれによって歪を
生じることなく均一な金属光沢を保持しうるように、金
属薄膜を保護するのに役立つものであり、この樹脂薄層
は熱収縮時に変化なく、比較的硬い、伸度が１０％以
下、好ましくは５％以下の樹脂によって形成される。例
えば、金属蒸着特性に優れたアクリル樹脂、メラミン樹
脂、フェノール樹脂、硬質ウレタン樹脂、エポキシ樹
脂、不飽和ポリエステル樹脂などによって形成されるの
が好ましい。Next, the non-heat-shrinkable resin thin layer not only prevents the metal thin film from being damaged or invaded by the outside air, but also causes the metal thin film having no elasticity to be distorted due to the displacement of the adhesive layer during heat shrinkage. It is useful for protecting the metal thin film so that it can maintain a uniform metallic luster without any change. The thin resin layer does not change upon heat shrinkage and is relatively hard and has an elongation of 10% or less, preferably 5%. % Or less of resin. For example, it is preferably formed of an acrylic resin, a melamine resin, a phenol resin, a hard urethane resin, an epoxy resin, an unsaturated polyester resin, or the like, which has excellent metal vapor deposition characteristics.
なお、本発明では、実質的に非熱収縮性である樹脂薄層
の厚さを、熱収縮性フィルムの厚さの５％以下と非常に
薄く形成するため、熱収縮性フィルムの熱収縮性が害さ
れることなく、熱収縮性シートは常に安定して熱収縮可
能である。また、熱収縮性シートが１０％以上収縮して
も、このように薄い樹脂薄層では、その影響を受けて、
剥離や浮きを生じて、熱収縮性シートの外観すなわち金
属光沢を害することがない。従って、このように非熱収
縮性の非常に薄い樹脂薄層を設けた本発明の熱収縮性シ
ートは、金属光沢に優れた、均一な外観で、安定して熱
収縮能であり、凹凸に富んだビンのキャップのカバー等
として、密着性よく安定して使用可能となる。In addition, in the present invention, since the thickness of the resin thin layer which is substantially non-heat-shrinkable is formed to be as thin as 5% or less of the thickness of the heat-shrinkable film, the heat-shrinkability of the heat-shrinkable film is reduced. The heat-shrinkable sheet can always heat-shrink stably without being damaged. Even if the heat-shrinkable sheet shrinks by 10% or more, such a thin resin thin layer is affected by the shrinkage,
Peeling or floating does not occur and does not impair the appearance of the heat-shrinkable sheet, that is, the metallic luster. Therefore, the heat-shrinkable sheet of the present invention provided with such a non-heat-shrinkable very thin resin thin layer has excellent metallic luster, a uniform appearance, stable heat-shrinkability, and unevenness. It can be used stably as a cover of a cap of a rich bottle with good adhesion.
本発明のシートの製造法は、特に限定されないが、転写
法によるのが好ましい。本発明では接着剤層が著しく伸
度が大で柔軟なものであるため、直接その層上に真空蒸
着などによって金属薄膜を形成しても、金属光沢あるも
のは得難く、また金属薄膜上に樹脂薄層をコーティング
などによって形成しようとしても、その乾燥に熱を使用
するとベースとなる熱収縮性フィルムが影響を受けやす
いため、直接的な積層法では効率よく品質のよい製品を
得難いが、転写法では伸度が小で適度の硬度を有する非
熱収縮性の樹脂薄層に金属薄膜を形成し、それを所定の
伸度を有する柔軟な接着剤によって熱収縮性フィルムに
接合すればよいため、非常に効率よく品質のよい製品が
得られるのである。なお、本発明で使用する接着剤は無
溶媒又は無溶媒に近い状態でも十分な接着性を有するた
め、転写法では熱収縮性フィルムに特別な熱の影響を与
えることなく、所望の製品を得ることができる。The method for producing the sheet of the present invention is not particularly limited, but a transfer method is preferable. In the present invention, since the adhesive layer is remarkably large in elongation and is flexible, even if a metal thin film is directly formed on the layer by vacuum deposition or the like, it is difficult to obtain a metal luster, and the adhesive layer on the metal thin film is difficult to obtain. Even if you try to form a thin resin layer by coating, if heat is used to dry it, the base heat-shrinkable film is easily affected, so it is difficult to obtain a high-quality product efficiently by the direct lamination method. In the method, a thin metal film is formed on a non-heat-shrinkable resin thin layer having a small degree of elongation and an appropriate hardness, and the thin film may be bonded to the heat-shrinkable film with a soft adhesive having a predetermined elongation. , Very efficient and high quality products can be obtained. Since the adhesive used in the present invention has sufficient adhesiveness even in a solvent-free state or a state close to a solvent-free state, a desired product can be obtained by the transfer method without exerting a special heat effect on the heat-shrinkable film. be able to.
本発明のシートの製造例及び使用例及び図面に従って簡
単に説明する。The sheet of the present invention will be briefly described with reference to manufacturing examples and usage examples and drawings.
本発発明のシートは、例えば、第１図の如く離型性基性
(7)の離型性を有する面に（離型性基材は離型性あるフ
ィルムをそのまま使用してもよいが、この例では基材上
に離型層(6)を設けたものを使用している）、伸度が１
０％以下である実質的に非熱収縮性の樹脂薄層(4)を形
成し、その上に金属薄膜(3)を真空蒸着法などによって
形成した転写箔ａを、２００％以上の伸度を有する接着
剤層(4)によって、熱収縮性フィルム(1)の表面に転写
し、離型性基材(7)を剥離して製造されるが、第２図の
如く、製品の非熱収縮性の樹脂薄層(4)の上に、更に樹
脂薄層(4)より柔軟な樹脂からなる保護層(5)が存在する
ようにしてもよい。保護層(5)の存在しない場合は、収
縮後、積層体ｂ表面に全く皺のない平面的な金属光沢あ
るシートとなるが、第２図の如く、柔軟な樹脂からなる
保護層(5)を設けた場合は、収縮後、積層体ｂ表面に少
し皺のある変化に富んだ金属光沢あるシートとなる。The sheet of the present invention has a releasable base as shown in FIG.
On the surface having releasability of (7) (the releasable base material may be a releasable film as it is, but in this example, the one having a release layer (6) on the base material is used. Used), elongation is 1
A transfer foil a having a substantially non-heat-shrinkable resin thin layer (4) of 0% or less and a metal thin film (3) formed thereon by a vacuum deposition method or the like has an elongation of 200% or more. It is produced by transferring to the surface of the heat-shrinkable film (1) by peeling the releasable base material (7) with the adhesive layer (4) having A protective layer (5) made of a resin softer than the resin thin layer (4) may be present on the shrinkable resin thin layer (4). If the protective layer (5) does not exist, after shrinking, the surface of the laminated body b becomes a flat metallic lusterless sheet, but as shown in FIG. 2, the protective layer (5) made of a flexible resin. When the sheet is provided, the sheet after shrinkage has a slightly wrinkled and glossy metallic luster on the surface of the laminate b.
なお、樹脂薄層(4)の上に保護層(5)を設ける場合は、保
護層(5)も非熱収縮樹脂からなる場合が多いので、樹脂
薄層(4)と保護層(5)の合計の厚さを、熱収縮性フィルム
の厚さの５％以下とするのがよい。When the protective layer (5) is provided on the resin thin layer (4), since the protective layer (5) is often made of a non-heat-shrinkable resin, the resin thin layer (4) and the protective layer (5) are also included. The total thickness of the above is preferably 5% or less of the thickness of the heat-shrinkable film.
本発明のシートは、第３図の如く金属薄膜(3)を模様状
に設けてもよく、また、第４図の如く熱収縮性フィルム
(1)の表面に金属薄膜(3)を有する積層体ｂを模様状に装
着したものであってもよい。The sheet of the present invention may be provided with a metal thin film (3) in a pattern as shown in FIG. 3, and a heat shrinkable film as shown in FIG.
The laminate b having the metal thin film (3) may be attached in a pattern on the surface of (1).
本発明のシートは、ビンの蓋などの密封材として効果的
に使用できるものであるが、例えば第４図の如き方法
で、熱収縮性フィルム(1)上に積層体ｂの存在しない部
分ｃを一定間隔で設け、積層体ｂの存在しない部分ｃが
端部となるように適当な大きさに裁断し、第５図の如く
収縮成形時にシートの重なり合う部分では積層体ｂが存
在せず、直接熱収縮性フィルム(1)同士が重なり合うよ
うにして、熱収縮させると、シートの接合部分が同質の
フィルムからなるため密着性がよく、非常に外観よく成
形される。The sheet of the present invention can be effectively used as a sealing material for bottle lids and the like, but a portion c where the laminate b does not exist on the heat-shrinkable film (1), for example, by the method shown in FIG. Are provided at regular intervals, and the portion c where the laminated body b does not exist is cut to an appropriate size so that the laminated body b does not exist in the overlapping portion of the sheets during shrink molding as shown in FIG. When the heat-shrinkable films (1) are directly overlapped with each other and heat-shrinked, the joined portions of the sheets are made of the same quality of film, so that the adhesion is good and the sheet is molded with a very good appearance.
例えば、ビン(8)の蓋の密封には、ビン(8)の蓋及び首の
少なくとも一部を覆って、第５図の如く本発明のシート
Ｘを巻きつけ、加熱プレスすることによって、第６図の
如く均一なビン(8)の蓋及び首に沿った均一な密閉性の
よい成形が可能となる。なお、本発明のシートは１０％
以上という高収宿率で収縮させても均一な金属光沢に優
れた外観を呈するため、ビンの蓋などの密封に当たって
も、機械装填が容易である。For example, to seal the lid of the bottle (8), at least a part of the lid and the neck of the bottle (8) are covered, the sheet X of the present invention is wound as shown in FIG. As shown in FIG. 6, it is possible to form a uniform and well-sealed bottle (8) along the lid and neck. The sheet of the present invention is 10%
Even if the container is shrunk at a high occupancy rate as described above, it has an excellent appearance with a uniform metallic luster, so that it is easy to machine-load even when sealing the lid of a bottle or the like.
実施例１ ポリエステルフィルムの片面にグラビアコーターによっ
て、厚さ１μｍのワックス離型層を設け、その上に厚さ
1.5μｍのアクリル−ウレタン樹脂薄層（実質的に非熱
収縮性）、厚さ４００〜５００ÅのＡｌ蒸着層を設けた
転写箔を準備し、この転写箔を厚さ３〜５μｍの接着剤
（ハニー化成社製のユーロックＮ−５０２）−乾燥皮膜
の伸度は７００〜８００％である―で、厚さ７０μｍの
熱収縮性ポリ塩化ビニルフィルムに貼合わせた。その
後、ポリエステルフィルムを剥離して、７０μｍの熱収
縮性フィルム／接着剤層／金属薄膜／1.5μｍの非熱収
縮性の樹脂薄層からなる金属光沢に富んだシートＡを得
た。Example 1 A wax release layer having a thickness of 1 μm was provided on one surface of a polyester film by a gravure coater, and the wax release layer was formed thereon.
A transfer foil provided with a 1.5 μm thin acrylic-urethane resin layer (substantially non-heat-shrinkable) and an Al vapor deposition layer having a thickness of 400 to 500 Å was prepared, and the transfer foil was provided with an adhesive (thickness of 3 to 5 μm) ( ULOCK N-502 manufactured by Honey Kasei Co., Ltd.-The dry film has an elongation of 700 to 800% -and was laminated on a heat-shrinkable polyvinyl chloride film having a thickness of 70 μm. Then, the polyester film was peeled off to obtain a sheet A rich in metallic luster, which was composed of a heat-shrinkable film of 70 μm / adhesive layer / metal thin film / non-heat-shrinkable resin thin layer of 1.5 μm.
実施例２ ポリエステルフィルムの片面に厚さ１μｍのワックス離
型層を設け、その上に８００％の伸度を有するウレタン
エラストマーを厚さ２μｍの皮膜を形成するようにグラ
ビアコーターによって塗布し、更に厚さ1.5μｍのアク
リル−ウレタン樹脂薄層（実質的に非熱収縮性）を設け
た後、厚さ４００〜５００ÅのＡｌ蒸着層を設けた転写
箔を準備し、この転写箔を厚さ３〜５μｍの接着剤（ハ
ニー化成社製のユーロックＮ−５０２）−乾燥皮膜の伸
度を７００〜８００％である―で、厚さ７０μｍの熱収
縮性ポリ塩化ビニルフィルムに貼合わせた。その後、ポ
リエステルフィルムを剥離して、７０μｍの熱収縮性フ
ィルム／接着剤層／金属薄膜／1.5μｍの非熱収縮性の
樹脂薄層／２μｍの伸縮性に富んだ保護層かるなるシー
トＢを得た。Example 2 A wax release layer having a thickness of 1 μm was provided on one side of a polyester film, and a urethane elastomer having an elongation of 800% was applied thereon by a gravure coater so as to form a film having a thickness of 2 μm. After a thin acrylic-urethane resin layer (substantially non-heat-shrinkable) having a thickness of 1.5 μm is provided, a transfer foil having an Al vapor deposition layer having a thickness of 400 to 500 Å is prepared. It was laminated on a heat-shrinkable polyvinyl chloride film having a thickness of 70 μm with an adhesive having a thickness of 5 μm (Euroc N-502 manufactured by Honey Chemical Co., Ltd.)-The elongation of the dry film is 700 to 800%. Then, the polyester film is peeled off to obtain a sheet B consisting of 70 μm heat-shrinkable film / adhesive layer / metal thin film / 1.5 μm non-heat-shrinkable resin thin layer / 2 μm stretchable protective layer. It was
比較例１ 実施例１の接着剤を下記の接着剤Ｉ〜IIIに代えた以外
は、実施例１と同様の方法を実施して、７０μｍの熱収
縮性フィルム／接着剤層／金属薄膜／1.5μｍの非熱収
縮性の樹脂薄層からなるシートＣＩ〜ＣIIIを得た。Comparative Example 1 A 70 μm heat-shrinkable film / adhesive layer / metal thin film / 1.5 was prepared in the same manner as in Example 1 except that the adhesives of Examples 1 to 3 were replaced with the following adhesives I to III. Sheets CI to CIII made of a non-heat-shrinkable resin thin layer of μm were obtained.
接着剤Ｉ 粘着剤（コーポニール＃８０２０） 接着剤II 武田薬品工業株式会社製のタケラックＡ−２０７１とタ
ケネートＡ−３を１０対１の割合で配合したもの。―乾
燥皮膜の伸度は１４０％である。Adhesive I Adhesive (Corponyle # 8020) Adhesive II Takelac A-2071 and Takenate A-3 manufactured by Takeda Pharmaceutical Co., Ltd. in a ratio of 10: 1. -The elongation of the dry film is 140%.
接着剤III 武田薬品工業株式会社製のタケラックＡ−２０７１とタ
ケネートＡ−３を５対１の割割合で配合したもの。―乾
燥皮膜の伸度は１００％である。Adhesive III Takelac A-2071 and Takenate A-3 manufactured by Takeda Pharmaceutical Co., Ltd. are mixed at a ratio of 5: 1. -The elongation of the dry film is 100%.
実施例及び比較例で得た製品シートＡ、Ｂ、ＣＩ〜ＣII
Iをそれぞれ加熱処理し、収縮した状態での外観―金属
光沢の変化―を目視試験した。その結果を、瓶のキャッ
プシールに使用した場合の評価と共に、次表に示す。Product sheets A, B, CI to CII obtained in Examples and Comparative Examples
Each of I was heat-treated, and the appearance in the contracted state-change in metallic luster-was visually examined. The results are shown in the following table together with the evaluation when used as a bottle cap seal.
本発明のシールＡ、Ｂ及び接着剤として粘着剤を使用し
たシートＣＩは収縮率３０％の割合で収縮させても、収
縮前と同様に優れた金属光沢を示すのに対し、伸度の低
い皮膜を形成する接着剤を使用したシートＣII、ＣIII
では、収縮率１０％でも、金属光沢が失われ、実用性の
ないものとなった。 The sheet CI using the seals A and B and the pressure-sensitive adhesive as the adhesive of the present invention shows the same excellent metallic luster as before the contraction even when contracted at a contraction ratio of 30%, but has low elongation. Sheets CII and CIII using a film-forming adhesive
Then, even if the shrinkage rate was 10%, the metallic luster was lost, and it became impractical.
なお、本発明に従って伸度７００〜８００％の接着剤を
使用したシートＡ、Ｂは収縮後も金属光沢に変化がな
く、キャップシールに使用した場合にも、均質な外観の
品質のよいキャップシールが可能であったのに対し、伸
度∞の粘着剤を使用したシートＣＩは収縮により金属光
沢に変化は生じないが、キャップシールに使用した場
合、シートの切断面及び樹脂薄層表面の細かい亀裂から
粘着剤の滲み出しが生じ、実用性あるキャップシールを
することはできなかった。The sheets A and B using the adhesive having an elongation of 700 to 800% according to the present invention have no change in metallic luster after shrinkage, and even when used as a cap seal, the cap seal has a uniform appearance and good quality. On the other hand, the sheet CI using the adhesive having the elongation ∞ does not change the metallic luster due to shrinkage, but when used for the cap seal, the cut surface of the sheet and the surface of the resin thin layer are fine. The adhesive leaked out from the cracks, and a practical cap seal could not be formed.
比較例２ 厚さ5.5μｍ、９μｍ及び１２μｍのポリエステルフィ
ルムの片面に厚さ４００〜５００ÅのＡｌ蒸着層を設
け、この蒸着層上に実施例１と同様の接着剤層を介して
７０μｍの熱収縮性ポリ塩化ビニルフィルムを貼合わせ
て、熱収縮性シートＤ、Ｅ、Ｆを得た。Comparative Example 2 A polyester film having a thickness of 5.5 μm, 9 μm and 12 μm was provided with an Al vapor deposition layer having a thickness of 400 to 500 Å on one side, and a heat shrinkage of 70 μm was performed on the vapor deposition layer via an adhesive layer similar to that of Example 1. Heat-shrinkable sheets D, E, and F were obtained by laminating a heat-resistant polyvinyl chloride film.
シートＤ、Ｅ、Ｆは、金属薄膜上に形成される非熱収縮
性樹脂層の厚さが異なる以外は、実施例１の製品、シー
トＡと実質的に同一の構成をとるものである。The sheets D, E, and F have substantially the same structure as the sheet A, which is the product of Example 1, except that the thickness of the non-heat-shrinkable resin layer formed on the metal thin film is different.
比較例２のシートＤ、Ｅ、Ｆを熱収縮させた場合の外観
を実施例１とシートＡの場合と比較して次表に示す。The appearances of the sheets D, E, and F of Comparative Example 2 when heat-shrinked are shown in the following table in comparison with those of Example 1 and Sheet A.
発明の効果 本発明のシートは、１０％以上の収縮率で収縮させて
も、非常に優れた金属光沢を示し、しかも均質な外観を
有するものとなる。また、その使用に当たって、機械装
填も可能であり、利用範囲の広いものである。 EFFECTS OF THE INVENTION The sheet of the present invention exhibits a very excellent metallic luster even when contracted at a contraction rate of 10% or more, and has a uniform appearance. In addition, it can be mechanically loaded for its use, and has a wide range of applications.
なお、本発明のシートは、樹脂薄層の存在によってシー
ト表面の印刷が可能であり、収縮によってもシート表面
の均質性も保たれるため、金属光沢ある表面に各種の文
字や図柄が明確に表れた、意匠効果に優れた識別性ある
商品として使用可能であり、ワインなどのビンのキャッ
プの密封材としてだけでなく、化粧品や飲料水などのビ
ン又は罐詰などの帯状ラベルなどとしても非常に作業性
よく使用でき、利用価値の高いものである。The sheet of the present invention can print on the surface of the sheet due to the presence of the resin thin layer, and since the homogeneity of the sheet surface is maintained even by shrinkage, various characters and patterns are clearly displayed on the metallic glossy surface. It can be used as a distinctive product that has an excellent design effect and is extremely useful not only as a sealing material for caps of bottles such as wine, but also as bottles such as cosmetics and drinking water or as band-shaped labels such as canning. It can be used with good workability and has high utility value.
第１図及び第２図はそれぞれ本発明のシートの製造方法
の異なる例を示す説明図、第３図は本発明のシートの一
例を示す断面図、第４図は本発明のシートの他の一例を
示す平面図、第５図は本発明のシートの使用状態を示す
断面図、第６図は本発明の使用例を示す斜視図である。 (1)……熱収縮性フィルム、(5)……保護層 (2)……接着剤層、(6)……離型層 (3)……金属薄膜、(7)……離型性基材 (4)……樹脂薄層、(8)……ビン ａ……転写箔、Ｘ……本発明のシート ｂ……積層体 ｃ……積層体ｂの存在しない部分1 and 2 are explanatory views showing different examples of the method for producing the sheet of the present invention, FIG. 3 is a sectional view showing an example of the sheet of the present invention, and FIG. 4 is another example of the sheet of the present invention. FIG. 5 is a plan view showing an example, FIG. 5 is a sectional view showing a use state of the seat of the present invention, and FIG. 6 is a perspective view showing a use example of the present invention. (1) …… Heat-shrinkable film, (5) …… Protective layer (2) …… Adhesive layer, (6) …… Release layer (3) …… Metal thin film, (7) …… Releasability Substrate (4): Thin resin layer, (8): Bottle a: Transfer foil, X: Sheet of the present invention b: Laminated body c: Part without laminated body b
Claims (4)
薄層(4)を 順次積層してなるシートであり、上記樹脂薄層(4)の厚
さが、上記熱収縮性フィルム(1)の厚さの５％以下であ
ることを特徴とする安定して１０％以上の熱収縮可能で
ある金属光択に優れた熱収縮性シート。1. A heat-shrinkable film (1), b) an adhesive layer (2) having an elongation of 200 to 1000%, c) a metal thin film (3), and d) an elongation of 10% or less. Which is a sheet formed by successively laminating substantially non-heat-shrinkable resin thin layers (4), wherein the thickness of the resin thin layer (4) is equal to that of the heat-shrinkable film (1). A heat-shrinkable sheet excellent in metal selection which is capable of stable heat shrinkage of 10% or more, which is 5% or less.
軟な樹脂からなる保護層(5)が設けられている特許請求
の範囲第１項記載の熱収縮性シート。2. The heat-shrinkable sheet according to claim 1, wherein a protective layer (5) made of a resin softer than the resin thin layer (4) is further provided on the resin thin layer (4). .
らなるものである特許請求の範囲第１項又は第２項記載
の熱収縮性シート。3. The heat-shrinkable sheet according to claim 1, wherein the heat-shrinkable film (1) is made of polyvinyl chloride.
許請求の範囲第１項〜第３項いずれか１項に記載の熱収
縮性シート。4. The heat-shrinkable sheet according to any one of claims 1 to 3, wherein the metal thin film (3) is provided in a pattern.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61181755A JPH0628936B2 (en) | 1986-07-31 | 1986-07-31 | Heat-shrinkable sheet with excellent metallic luster |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61181755A JPH0628936B2 (en) | 1986-07-31 | 1986-07-31 | Heat-shrinkable sheet with excellent metallic luster |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6337931A JPS6337931A (en) | 1988-02-18 |
| JPH0628936B2 true JPH0628936B2 (en) | 1994-04-20 |
Family
ID=16106318
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61181755A Expired - Fee Related JPH0628936B2 (en) | 1986-07-31 | 1986-07-31 | Heat-shrinkable sheet with excellent metallic luster |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0628936B2 (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0741699B2 (en) * | 1989-10-31 | 1995-05-10 | 株式会社麗光 | Heat-shrinkable sheet with a glittering pattern |
| JPH0739158B2 (en) * | 1991-08-21 | 1995-05-01 | 株式会社麗光 | Machine-friendly shrink film with excellent metallic luster |
| JPH0741700B2 (en) * | 1992-11-05 | 1995-05-10 | 株式会社麗光 | Shrink film |
| WO2007121152A2 (en) * | 2006-04-13 | 2007-10-25 | Sancoa International Company, L.P. | Metallized shrinkable label |
| JP2008279666A (en) * | 2007-05-11 | 2008-11-20 | Panefuri Kogyo Kk | Metallic tone decorative sheet and metallic tone decorative material |
| JP5327851B2 (en) * | 2008-12-26 | 2013-10-30 | 大阪シーリング印刷株式会社 | Shrink film with metal deposition film |
| FR3043490B1 (en) * | 2015-11-05 | 2021-09-10 | Arcita | RADIATION PROTECTION SCREEN |
| CN112515320A (en) * | 2019-09-18 | 2021-03-19 | 天津珍熙美容实业有限公司 | Wrinkle type artificial nail and method for manufacturing the same |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5510108U (en) * | 1978-06-30 | 1980-01-23 | ||
| JPS5852922U (en) * | 1981-09-26 | 1983-04-11 | ヤンマー農機株式会社 | harvester |
| JPS6034598U (en) * | 1983-08-16 | 1985-03-09 | 株式会社 川本製作所 | impeller for pump |
-
1986
- 1986-07-31 JP JP61181755A patent/JPH0628936B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6337931A (en) | 1988-02-18 |
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