JPH0270433A - Polyethylene composite film - Google Patents

Polyethylene composite film

Info

Publication number
JPH0270433A
JPH0270433A JP63222522A JP22252288A JPH0270433A JP H0270433 A JPH0270433 A JP H0270433A JP 63222522 A JP63222522 A JP 63222522A JP 22252288 A JP22252288 A JP 22252288A JP H0270433 A JPH0270433 A JP H0270433A
Authority
JP
Japan
Prior art keywords
film
polyethylene
printed
composite film
printing
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
Application number
JP63222522A
Other languages
Japanese (ja)
Inventor
Haruo Tsukuda
佃 晴雄
Joichi Tabuchi
田渕 丈一
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tonen Chemical Corp
Original Assignee
Tonen Sekiyu Kagaku KK
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Tonen Sekiyu Kagaku KK filed Critical Tonen Sekiyu Kagaku KK
Priority to JP63222522A priority Critical patent/JPH0270433A/en
Priority to EP19890308965 priority patent/EP0358445A3/en
Priority to KR1019890012861A priority patent/KR910008814B1/en
Publication of JPH0270433A publication Critical patent/JPH0270433A/en
Priority to US07/697,489 priority patent/US5075152A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To improve the gloss and tone in printing of a composite film by printing one surface of a polyethylene stretched film having a crosslinking degree lowered at an inner side in a thicknesswise direction thereof, and attaching a film or the like to said printed surface. CONSTITUTION:A polyethylene stretching film having a crosslinking degree lowered at an inner side in a thicknesswise direction thereof is obtained, for example, by radiating electron beams from opposite sides of a polyetylene resin material sheet, which has higher transparency than an ordinary high- density polyethylene. The obtained polyethylene stretching film having superior transparency is printed at the rear surface thereof and a film or the like is attached to the printed rear surface of the film, whereby a composite film representing superior gloss and tone at the printing surface thereof is obtained. Particularly, if the front surface of the polyethylene stretching film is subjected to a metal vaporization, and the vaporized surface is bonded to the printed surface, the gloss and tone of the printed surface can be more enhanced.

Description

【発明の詳細な説明】 [産業上の利用分野] 本発明はポリエチレン複合フィルムに関し、特に、カレ
ンダーやポスター等の掲示物、バルーン(風船)、ある
いは各種包装用材料(風呂敷をイメージした高級な包装
紙箋)用として、裏印刷が施され、印刷面の光沢、色調
に優れる等これら用途に好適なポリエチレン複合フィル
ムに関する。
[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a polyethylene composite film, particularly for use in display materials such as calendars and posters, balloons, and various packaging materials (high-class packaging with the image of furoshiki). The present invention relates to a polyethylene composite film suitable for use in paper notes, which is printed on the back, and has excellent gloss and color tone on the printed surface.

[従来の技術] 従来、プラスチックフィルムの裏面に印刷を施し、その
印刷面にプラスチックフィルムその他の積層材を貼り合
せた複合フィルムは、各種包装材、カレンダー等の用途
に用いられている。上記のプラスチックフィルムとして
は、透明性のEからポリブロビレンニ軸延伸フィルムや
ポリエステルフィルムが用いられている。
[Prior Art] Conventionally, composite films in which the back side of a plastic film is printed and a plastic film or other laminated material is bonded to the printed side have been used for various packaging materials, calendars, and the like. As the above-mentioned plastic film, a polypropylene biaxially stretched film or a polyester film is used because of its transparency.

しかし、このような裏印刷を施した複合フィルムの印刷
の光沢や色調には満足できないものがあった。又フィル
ムの複合化においての接着剤にも限定されるものであり
複合化の作業性にも問題かった・ さらに、複合フィルムを各種包装材等に使用する場合、
その表材が透明性に優れ、印刷面の光沢、色調が優れて
いる他に、防湿性や、折曲げ特性(デッドフォールド性
)やフレキソクラック後の耐ピンホール性にも優れてい
ることが要求されるが、従来例ではそれを欠如すること
がある。
However, the gloss and color tone of the printed composite film with such back printing were unsatisfactory. In addition, it is limited to adhesives used in film composites, and there are problems with the workability of composite films.Furthermore, when composite films are used for various packaging materials, etc.
The surface material has excellent transparency, and the printed surface has excellent gloss and color tone, as well as excellent moisture resistance, bending properties (deadfold property), and pinhole resistance after flexo cracking. However, conventional examples may lack it.

[発明が解決しようとする課題] 本発明は、上記のような問題点を解消し、裏印刷を施し
た複合フィルムの印刷の光沢、色調をより向上させ、又
、フィルムの貼り合せによる複合化が容易であるポリエ
チレン複合フィルムの提供を目的とする。
[Problems to be Solved by the Invention] The present invention solves the above-mentioned problems, further improves the gloss and color tone of a composite film printed on the back side, and further improves the printing gloss and color tone of a composite film that has been printed on the back side. The purpose of the present invention is to provide a polyethylene composite film that is easy to use.

又、本発明は、防湿性に優れ、デッドフォールド性に優
れ、しかも耐ピンホール性にも優れたポリエチレン複合
フィルムを提供することを目的とする。
Another object of the present invention is to provide a polyethylene composite film that has excellent moisture proofing properties, excellent deadfold properties, and excellent pinhole resistance.

[課題を解決するための手段] かかるもくてきを達成するための本発明は、架橋度がフ
ィルムの厚さ方向において、内側に低下したポリエチレ
ン延伸フィルム(以下BOPEフィルムという)の片面
に印刷を司し、この印刷面にフィルム類を貼着してなる
ことを特徴とするポリエチレン複合フィルムに存する。
[Means for Solving the Problems] The present invention for achieving the above-mentioned features includes printing on one side of a stretched polyethylene film (hereinafter referred to as BOPE film) in which the degree of crosslinking is reduced inward in the thickness direction of the film. The present invention consists in a polyethylene composite film characterized by having a printed surface and a film attached thereto.

本発明で使用される架橋度がフィルムの厚さ方向におい
て、内側に低下したポリエチレン延伸フィルムは、例え
ばポリエチレン樹脂系原反シートの両側から電子線を照
射するなどにより、例えば両表層が架橋しているが中間
層は未架橋であるなどの特定構成の架橋度(ゲル分率に
より表わすことができる)を有するシートをテンター法
により丁二輪延伸又はシートを縦方向(MD)にロール
間引張り延伸もしくは圧延し、次いで縦方向(TD)に
延伸しフィルムとすることにより得ることができるもの
で、従来の一般の高密度ポリエチレンに比し透明性が高
く、また、ポリエチレンなどのフィルムを放射線により
均一に架橋し、二輪延伸する方法(特公昭37−188
93号公報)により得られる架橋延伸ポリエチレンフィ
ルムは透明性が改良されるが防湿性は十分でないとされ
るがこの防湿性を改良でき、かかる透明性及び防湿性に
優れたBOPEフィルムの片面(裏面)に印刷を施し、
その印刷面にフィルム類を貼着すると、BOPEフィル
ムの透明性が高く、また、複合フィルムの裏側にはフィ
ルム類が貼着されているので、印刷面の光沢9色調に優
れた複合フィルムが得られ、特に、当該フィルム類とし
て、同じBOPEフィルムの表面に金属蒸着を施したフ
ィルムを用い、その蒸着面と印刷面とを接合させると、
その印刷面の光沢1色調がより一層優れたもとなる。
The polyethylene stretched film used in the present invention, in which the degree of crosslinking decreases inward in the thickness direction of the film, can be produced by crosslinking both surface layers, for example, by irradiating an electron beam from both sides of the raw polyethylene resin sheet. A sheet having a specific degree of crosslinking (expressed by gel fraction), such as an uncrosslinked intermediate layer, is stretched with two wheels by a tenter method, or stretched between rolls in the machine direction (MD), or stretched between rolls in the machine direction (MD). It can be obtained by rolling and then stretching in the machine direction (TD) to form a film, and it has higher transparency than conventional general high-density polyethylene. Cross-linking and two-wheel stretching method (Special Publication Publication No. 37-188
Although the cross-linked stretched polyethylene film obtained by Patent Publication No. 93) is said to have improved transparency but insufficient moisture resistance, it is possible to improve this moisture resistance. ) is printed,
When a film is attached to the printed surface, the transparency of the BOPE film is high, and since the film is attached to the back side of the composite film, a composite film with excellent gloss of 9 tones on the printed surface can be obtained. In particular, if a film in which metal vapor deposition is applied to the surface of the same BOPE film is used as the film, and the vapor deposited surface and the printed surface are bonded,
The gloss of the printed surface becomes even more excellent in one color tone.

後述する実施例及び比較例にも示すように、ポリエステ
ルフィルム(PET)の裏面に印刷を施し、その印刷面
にPETフィルムを貼着したものやポリエチレン二軸延
伸フィルム(OPPフィルム)の裏面に印刷を施し、そ
の印刷面にOPPフィルムを貼着したものでは、印刷面
の色調の深みなどが劣るとともに、デッドフォールド性
に劣る。
As shown in the Examples and Comparative Examples described below, printing was performed on the back side of a polyester film (PET) and a PET film was attached to the printed side, and printing was performed on the back side of a polyethylene biaxially stretched film (OPP film). In the case where an OPP film is attached to the printed surface, the depth of the color tone of the printed surface is poor, and the deadfold property is also poor.

この様に、本発明複合フィルムは、印刷面の光沢、色調
に優れ、かつ、防湿性、透明性に優れ、加えて、曲げ特
性(デッドフォールド性)、耐ピンホール・性にも優れ
上述した用途に好適である。
As described above, the composite film of the present invention has excellent print surface gloss and color tone, as well as excellent moisture resistance and transparency, and also has excellent bending properties (deadfold properties) and pinhole resistance as described above. Suitable for this purpose.

以下本発明の複合フィルムについて詳述する。The composite film of the present invention will be explained in detail below.

本発明において印刷を施こすBOPEフィルムは、架橋
度がフィルムの厚さ方向において内側に低下したポリエ
チレン二軸延伸フィルムである。
The BOPE film to be printed in the present invention is a biaxially stretched polyethylene film in which the degree of crosslinking decreases inward in the thickness direction of the film.

その架橋度は、ゲル分率(沸とうp−キシレン抽出によ
る不溶部分の割合)で表わされるが、内側最低ゲル分率
が5%未満で、外側架橋度ゲル分率は5%以上のものが
好ましい、特に内側最低ゲル分率が0%で、外側架橋度
のゲル分率が20〜70%の範囲で両側同一に架橋し、
フィルムの厚さ方向に架橋層/未架橋層/架橋層を構成
し、各層の構成比が未架橋層:両側架橋層=1+0.1
〜IOの範囲のものであることが好ましい、又、延伸倍
率が一方向に3倍量」二、面積倍率9倍以上に二輪延伸
されたものが好ましい、上記のBOPEフィルムは、用
途により種類を選択すればよい。
The degree of crosslinking is expressed by the gel fraction (ratio of insoluble part by boiling p-xylene extraction), but the minimum inner gel fraction is less than 5% and the outer crosslinking degree gel fraction is 5% or more. Preferably, the minimum gel fraction on the inner side is 0%, and the gel fraction on the outer side is crosslinked in the same manner in the range of 20 to 70%,
A crosslinked layer/uncrosslinked layer/crosslinked layer is formed in the thickness direction of the film, and the composition ratio of each layer is uncrosslinked layer:crosslinked layer on both sides=1+0.1
It is preferable that the BOPE film is in the range of IO to IO, and that it is preferably two-wheel stretched at a stretching ratio of 3 times in one direction and 9 times or more in area. Just choose.

例えば、防湿性、カット性、耐屈曲ピンホール性を必要
とする立場からは、密度0.935g/cm’以上の高
密度ポリエチレンベースが好ましい、特に好ましい物性
としては、透湿度(y)が下記式で求めた数値以下で、
ヘイズが5%以下のものである。
For example, from the standpoint of requiring moisture resistance, cutability, and bending pinhole resistance, a high-density polyethylene base with a density of 0.935 g/cm' or more is preferable. Particularly preferable physical properties include moisture permeability (y) as shown below. Below the value calculated by the formula,
The haze is 5% or less.

y=  l  7  X−1/2 [但し、yは透湿度(g/m ” / 24 hrs)
、Xは延伸フィルムの厚さ(μ)を表わす、]又防湿性
を向上させる立場からは密度0.935g/c糟3以上
、メルトインデックス(J I 5K6760゜温度1
90℃、荷重2.16kgで測定、以下Mlという)0
5〜20g/10分、ハイロードメルトインデックス(
JISK6760.温度190℃、何重21.6kgで
測定、以下HLMrという)/M+40〜200のポリ
エチレンを用いたものが好ましい、さらにはこれらに水
添系石油樹脂を添加したものが好ましい、なお、ポリエ
チレンは混合物で用いてもよい。
y= l 7 X-1/2 [However, y is moisture permeability (g/m''/24 hrs)
, X represents the thickness (μ) of the stretched film.] Also, from the standpoint of improving moisture resistance, the density is 0.935 g/c or more, the melt index (J I 5K 6760 ° temperature 1
Measured at 90°C and a load of 2.16 kg, hereinafter referred to as Ml)0
5-20g/10min, High Road Melt Index (
JISK6760. It is preferable to use polyethylene with a temperature of 190°C and a weight of 21.6 kg (hereinafter referred to as HLMr)/M+40 to 200. Furthermore, it is preferable to use a hydrogenated petroleum resin added to these. Note that polyethylene is a mixture. May be used in

上記のよりなりOPEフィルムは1例えば特開昭59−
174322号公報、同61−74819号公報簿に開
示される方法によって製造することができる。
The above-mentioned OPE film is 1, for example, JP-A-59-
It can be manufactured by the method disclosed in JP 174322 and JP 61-74819.

例えば、各種密度のポリエチレンを用いて溶融押出し成
形したシート状又はチューブ状原反を、その厚さ方向に
おいて架橋度が内側に低下するように両側から電子線照
射等により架橋し、次いでポリエチレンの融点以下の温
度で二輪方向に延伸する方法があげられる。
For example, a sheet-like or tube-like original fabric made of polyethylene of various densities is melt-extruded and cross-linked from both sides by electron beam irradiation, etc., so that the degree of cross-linking decreases inward in the thickness direction, and then the melting point of polyethylene is Examples include a method of stretching in the two-wheel direction at the following temperatures.

B OHDフィルムの厚さは、目的用途により適宜選択
されるが、通常lO〜50μ程度のものが用いられる。
The thickness of the B OHD film is appropriately selected depending on the intended use, but is usually about 10 to 50 μm.

BOPEフィルムへの印刷は、例えばグラビア印刷、オ
フセット印刷、シルクスクリーン印刷、フレキソ印刷に
より行うことができる。
Printing on the BOPE film can be performed, for example, by gravure printing, offset printing, silk screen printing, or flexographic printing.

裏印刷を施したBOPEフィルムに貼着(積層)するフ
ィルム類の例としては、プラスチックフィルムが挙げら
れ、その具来例としては、ポリエチレン、ポリプロピレ
ン等のポリオレフィン、ポリエステル、ポリアミド簿の
無延伸又は−軸もしくは二輪延伸フィルムが挙げられる
。これらのうちでは、印刷の光沢、色調をより一層向上
させる上から、上記のBOPEフィルムが好ましく、特
に、BOPE全PE着フィルムが好ましい。
Examples of films that can be attached (laminated) to the back-printed BOPE film include plastic films, such as unstretched or - Examples include shaft- or two-wheel stretched films. Among these, the above-mentioned BOPE film is preferred from the viewpoint of further improving the gloss and color tone of printing, and the BOPE all-PE film is particularly preferred.

当該BOPEフィルムへの金属蒸着は、当該フィルムを
高真空(10−’ 〜18−’n+Hg) (1)機内
に置き、同機内で金属を熱して蒸発させ放射状に飛散す
る蒸着金属をフィルム表面に付着させる真空蒸着により
行うことができるが、その他真空中で放電させたときに
陰極を構成する金属が飛散する現象を利用したスパッタ
リング蒸着やイオン−プレーディングによって司能であ
る。蒸着させる金属としては、Aj!、:Zn、Au、
Ag、Cu。
Metal vapor deposition on the BOPE film is carried out by placing the film in a high vacuum (10-' to 18-'n+Hg) (1) Inside the machine, the metal is heated and evaporated, and the vapor-deposited metal is scattered radially onto the film surface. This can be carried out by vacuum evaporation, or by sputtering evaporation or ion plating, which utilizes the phenomenon in which the metal constituting the cathode scatters when discharged in a vacuum. As the metal to be vapor-deposited, Aj! , :Zn, Au,
Ag, Cu.

Ni、Cr、Ge、Se、Ti、Snなどが挙げられる
が、裏印刷を施したフィルムの裏面を反射させ光沢、色
調を向上させることができ、また、作業性、経済性に優
れていることから、AQを用いることが好ましい。
Examples include Ni, Cr, Ge, Se, Ti, Sn, etc., but it can improve gloss and color tone by reflecting the back side of the film with back printing, and it is also excellent in workability and economic efficiency. Therefore, it is preferable to use AQ.

金属蒸着層の厚さは、200〜800Aが好ましい。The thickness of the metal vapor deposition layer is preferably 200 to 800A.

フィルムはあらかじめコロナ放電処理をしておくと金属
とフィルムとの密着性を良くすることができる。
If the film is subjected to corona discharge treatment in advance, the adhesion between the metal and the film can be improved.

複合フィルムの層構成は、印刷を施したBOPEフィル
ムの印刷面側に前記プラスチックフィルム又は金属蒸着
フィルム(BOPE以外のフィルムも含む)の蒸着面側
の積層を基本構成とするが、さらに、印刷面と金属蒸着
面の間にBOPEフィルムを中間層として加えてもよい
The basic layer structure of the composite film is to laminate the printed surface of the printed BOPE film with the plastic film or metallized film (including films other than BOPE) on the vapor-deposited surface. A BOPE film may be added as an intermediate layer between the metallized surface and the metallized surface.

父上記積層プラスチックフィルム(蒸着フィルムも含む
)外層には、シーラント層を設けてもよい。
A sealant layer may be provided on the outer layer of the laminated plastic film (including vapor-deposited film).

シーラント層は例えば低密度ポリエチレン(LDPE璽
線状低線状低密度ポリエチレンDPE)、エチレン−酢
酸ビニルコポリマー(EVA) エチレン・アクリル酸
エチルコポリマー(EEΔ)、アイオノマー等により構
成される。
The sealant layer is made of, for example, low density polyethylene (LDPE, low linear low density polyethylene DPE), ethylene-vinyl acetate copolymer (EVA), ethylene-ethyl acrylate copolymer (EEΔ), ionomer, or the like.

複合フィルムの製造は、各材料層を、(1)ドライラミ
ネート法、(2)ウェットラミネート法、(3)押出コ
ーティングラミネート法、(4)ホットメルトラミネー
ト法等のいずれの方法によってもよい。
The composite film may be manufactured by any method such as (1) dry lamination, (2) wet lamination, (3) extrusion coating lamination, (4) hot melt lamination, etc. for each material layer.

又接着剤はウレタン系、酢酸ビニル系、アクリル系、ゴ
ム系等各種の接着剤を利用することができる。
Furthermore, various adhesives such as urethane-based, vinyl acetate-based, acrylic-based, and rubber-based adhesives can be used.

複合フィルムの厚さは、目的、用途により選択されるが
、通常は20〜200μ程度である。
The thickness of the composite film is selected depending on the purpose and use, but is usually about 20 to 200 μm.

[実施例] 次に、本発明を実施例及び比較例に基づいて説明する。[Example] Next, the present invention will be explained based on Examples and Comparative Examples.

実施例1゜ 高密度ポリエチレン(密度0.957g/c+s’Ml
  1.0g710分)から成形し、電子線架橋した原
反シート(ゲル分率(%):架橋層/未架橋層/’!橋
!=5010150、架m構成比=架橋層:未架橋層:
架橋層= 1 : 1.75・l、厚さ500μ)を1
27℃、倍率4×6で延伸して厚さ20μの二輪延伸フ
ィルム(BOHDフィルム)を得た。このフィルムは、
ヘイズ2.7%、透湿度3.6gem”/ 24 hr
sであった。
Example 1゜High density polyethylene (density 0.957g/c+s'Ml
1.0 g 710 minutes) and cross-linked with electron beam (gel fraction (%): cross-linked layer/un-cross-linked layer/'! bridge! = 5010150, composition ratio of cross-linked m = cross-linked layer: un-cross-linked layer:
Crosslinked layer = 1: 1.75・l, thickness 500μ)
A two-wheel stretched film (BOHD film) having a thickness of 20 μm was obtained by stretching at 27° C. and a magnification of 4×6. This film is
Haze 2.7%, moisture permeability 3.6gem”/24 hr
It was s.

次いで、このBOHDフィルム面にコロナ放電処理をし
た後、この処理面に4色グラビア印刷を施した。
Next, the surface of this BOHD film was subjected to corona discharge treatment, and then four-color gravure printing was performed on this treated surface.

一方、前記のBOHDフィルムにコロナ放電処理をした
後、この処理面にアルミニウムを厚さ500Aになるよ
うに真空蒸着してアルミニウム蒸着フィルムを得た。
On the other hand, after corona discharge treatment was applied to the BOHD film, aluminum was vacuum-deposited on the treated surface to a thickness of 500A to obtain an aluminum-deposited film.

次に、前記グラビア印刷を施したBOHDフィルムの印
刷面と前記アルミニウム蒸着フィルム(AI2蒸着BO
HD)の蒸着面とをウレタン系接着剤によるドライラミ
ネート法により接着積層して複合フィルムとした。
Next, the printed surface of the BOHD film subjected to the gravure printing and the aluminum vapor-deposited film (AI2 vapor-deposited BO
HD) was adhesively laminated with the vapor-deposited surface using a urethane adhesive using a dry lamination method to obtain a composite film.

得られた複合フィルムの印刷面側から光沢の測定及び目
視による評価を行った。その結果を表−1に示した。又
箱体の包装を行ったところ曲げ特性(プツトフォールド
性)にも優れていた。又フレキソクラック後のピンホー
ル数も非常に少く耐ピンホール性にも優れるものであっ
た。
Gloss was measured and visually evaluated from the printed side of the resulting composite film. The results are shown in Table-1. Furthermore, when the box was packaged, it had excellent bending properties (put-folding properties). In addition, the number of pinholes after flexo cracking was very small and the pinhole resistance was excellent.

実施例2〜4゜ 実施例1において、BOHDフィルム印刷面側に積層す
るフィルムを、A2蒸IIPETフィルム(12μ)、
PETフイ7t、A(12μ)、OPPフィルム(20
μ)及びシーラントのLLDPEフィルム(30μ)と
した以外は実施例1と同様にして複合フィルムを得た。
Examples 2 to 4 In Example 1, the film to be laminated on the printing side of the BOHD film was A2 vaporized II PET film (12μ),
PET film 7t, A (12μ), OPP film (20
A composite film was obtained in the same manner as in Example 1, except that LLDPE film (30μ) and sealant were used.

各複合フィルムの光沢及び目視の結果を表−1に併記し
た。
The results of gloss and visual inspection of each composite film are also listed in Table-1.

比較例1.28 実施例1においてB OHDフィルムに代り、PE1゛
フイルム及びOPPフィルムを用いてそれぞれ片面に4
色グラビア印刷を施し、その印刷面側に、PETフィル
ム(12u)、OPPフィルム(20μ)を同様にして
積層して複合フィルムを得た。各複合フィルムの光沢及
び目視の結果を表−1に併記した。
Comparative Example 1.28 In place of the B OHD film in Example 1, a PE1 film and an OPP film were used, each having 400 ml on one side.
Color gravure printing was performed, and a PET film (12u) and an OPP film (20μ) were similarly laminated on the printed side to obtain a composite film. The results of gloss and visual inspection of each composite film are also listed in Table-1.

なお、実施例における評価の試験方法は、次の通りであ
る。
In addition, the test method for evaluation in Examples is as follows.

(1)目視:印刷面の色調を3名が目視で判定し、色調
に深みが感じられ非常に優れると するものを0、優れるものを○、普通 をΔ、やや劣るを×とした。
(1) Visual inspection: The color tone of the printed surface was visually judged by three people, and the color tone was evaluated as 0 if it felt deep and very good, ○ if excellent, Δ if fair, and × if slightly poor.

(2)折り曲げ特性:複合フィルムを二つ折りにしくデ
ッドフォールド性)  たとき、復元角度が90°未満
を0190@〜180”の ものをΔ、折り目の付かない ものをXとした。
(2) Bending properties: When the composite film is folded in half, the restoring angle is less than 90° and the restoring angle is 0190@~180” as Δ, and the one with no creases as X.

[発明の硬化] 本発明の複合フィルムは、印刷面の光沢、色調に優れる
ものである。
[Curing of the Invention] The composite film of the invention has excellent gloss and color tone on the printed surface.

又基体のBOPEフィルムは防湿性、透明性に優れるも
のであり、複合フィルムにおいても、それらの特性に優
れ、加えて曲げ特性、耐ピンホール性も良好であった。
In addition, the BOPE film used as the base material was excellent in moisture resistance and transparency, and the composite film also had excellent properties in these properties, as well as good bending properties and pinhole resistance.

上記のような特性により、本発明複合フィルムは各種用
途に適用することができるが、特に、各種包装用材料(
風呂敷をイメージした高級な包装紙等)、カレンダーや
ポスター等の掲示物、バルーン(風船)等に好適である
Due to the above characteristics, the composite film of the present invention can be applied to various uses, but in particular, it can be used as a variety of packaging materials (
It is suitable for high-quality wrapping paper with the image of furoshiki (wrapping cloth), notices such as calendars and posters, balloons, etc.

特許出願人  東燃石油化学株式会社Patent applicant: Tonen Petrochemical Co., Ltd.

Claims (1)

【特許請求の範囲】 1、架橋度がフィルムの厚さ方向において、内側に低下
したポリエチレン延伸フィルムの片面に印刷を施し、こ
の印刷面にフィルム類を貼着してなることを特徴とする
ポリエチレン複合フィルム。 2、ポリエチレン延伸フィルムが、架橋層/未架橋層/
架橋層よりなる構成を有して成る、請求項1に記載のポ
リエチレン複合フィルム。 3、フィルム類が、ポリエチレン延伸フィルムの表面に
アルミニウム蒸着層を有して成り、ポリエチレン延伸フ
ィルムの印刷面と、アルミニウム蒸着層を有するフィル
ム類の蒸着面とを接合して成る、請求項1に記載のポリ
エチレン複合フィルム。 4、複合フィルムが、フィルム類の外面にシーラント層
を有して成る、請求項1に記載のポリエチレン複合フィ
ルム。
[Scope of Claims] 1. Polyethylene characterized by printing on one side of a stretched polyethylene film in which the degree of crosslinking decreases inward in the thickness direction of the film, and pasting a film on this printed side. composite film. 2. The polyethylene stretched film has a crosslinked layer/uncrosslinked layer/
The polyethylene composite film according to claim 1, comprising a crosslinked layer. 3. According to claim 1, the films are formed by having an aluminum vapor-deposited layer on the surface of a polyethylene stretched film, and are formed by joining the printed surface of the polyethylene stretched film to the vapor-deposited surface of the film having the aluminum vapor-deposited layer. The polyethylene composite film described. 4. The polyethylene composite film according to claim 1, wherein the composite film has a sealant layer on the outer surface of the films.
JP63222522A 1988-09-07 1988-09-07 Polyethylene composite film Pending JPH0270433A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP63222522A JPH0270433A (en) 1988-09-07 1988-09-07 Polyethylene composite film
EP19890308965 EP0358445A3 (en) 1988-09-07 1989-09-05 Polyethylene composite film and label
KR1019890012861A KR910008814B1 (en) 1988-09-07 1989-09-06 Poly ethylene composite film and the label
US07/697,489 US5075152A (en) 1988-09-07 1991-05-02 Polyethylene composite film and label

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP63222522A JPH0270433A (en) 1988-09-07 1988-09-07 Polyethylene composite film

Publications (1)

Publication Number Publication Date
JPH0270433A true JPH0270433A (en) 1990-03-09

Family

ID=16783749

Family Applications (1)

Application Number Title Priority Date Filing Date
JP63222522A Pending JPH0270433A (en) 1988-09-07 1988-09-07 Polyethylene composite film

Country Status (1)

Country Link
JP (1) JPH0270433A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005225118A (en) * 2004-02-13 2005-08-25 Fuji Seal International Inc Plastic label
JP2017082133A (en) * 2015-10-29 2017-05-18 大日本印刷株式会社 Polyethylene film and package using the same
JP2020062786A (en) * 2018-10-16 2020-04-23 藤森工業株式会社 Laminate film for bag and method for producing the same
JP2020131519A (en) * 2019-02-18 2020-08-31 株式会社プライムポリマー Method of producing packing bag
WO2022092296A1 (en) * 2020-10-30 2022-05-05 大日本印刷株式会社 Polyethylene multillayer base material, printing base material, multilayer body and packaging material

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005225118A (en) * 2004-02-13 2005-08-25 Fuji Seal International Inc Plastic label
JP2017082133A (en) * 2015-10-29 2017-05-18 大日本印刷株式会社 Polyethylene film and package using the same
JP2020062786A (en) * 2018-10-16 2020-04-23 藤森工業株式会社 Laminate film for bag and method for producing the same
JP2023016903A (en) * 2018-10-16 2023-02-02 藤森工業株式会社 Method for producing laminate film for bag, and laminate film produced by the same
JP2020131519A (en) * 2019-02-18 2020-08-31 株式会社プライムポリマー Method of producing packing bag
WO2022092296A1 (en) * 2020-10-30 2022-05-05 大日本印刷株式会社 Polyethylene multillayer base material, printing base material, multilayer body and packaging material

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