JP3120006B2 - Manufacturing method of laminated film - Google Patents

Manufacturing method of laminated film

Info

Publication number
JP3120006B2
JP3120006B2 JP06249701A JP24970194A JP3120006B2 JP 3120006 B2 JP3120006 B2 JP 3120006B2 JP 06249701 A JP06249701 A JP 06249701A JP 24970194 A JP24970194 A JP 24970194A JP 3120006 B2 JP3120006 B2 JP 3120006B2
Authority
JP
Japan
Prior art keywords
film
aluminum
film substrate
laminated
manufacturing
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
Application number
JP06249701A
Other languages
Japanese (ja)
Other versions
JPH08112881A (en
Inventor
下 ▲雷▼ 藏 久
田 良 一 沼
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.)
Hosokawa Yoko KK
Original Assignee
Hosokawa Yoko 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 Hosokawa Yoko KK filed Critical Hosokawa Yoko KK
Priority to JP06249701A priority Critical patent/JP3120006B2/en
Publication of JPH08112881A publication Critical patent/JPH08112881A/en
Application granted granted Critical
Publication of JP3120006B2 publication Critical patent/JP3120006B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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  • Laminated Bodies (AREA)

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【産業上の利用分野】本発明は、たとえば、削り節を封
入する包装袋に適用されるラミネートフイルムを作るた
めのラミネートフイルムの製造方法に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for producing a laminated film for producing a laminated film for use in a packaging bag for enclosing shavings, for example.

【0002】[0002]

【従来の技術】たとえば、削り節のような食品を封入す
る包装袋は、内容物の酸化による変色変質や、吸湿によ
る品質劣化を防ぐ必要性から、酸素透過度や水蒸気透過
度の小さいラミネートフイルムを素材として作られてい
る。上記ラミネートフイルムは、蒸着ポリエステルフィ
ルムを基材フィルムとし、この基材フィルムに延伸ポリ
プロピレンフイルム、ポリビニルアルコールフイルム、
ポリエチレンフイルムを積層することで作られている。
2. Description of the Related Art For example, packaging bags for enclosing foods such as shavings are required to prevent discoloration and deterioration due to oxidation of the contents and deterioration in quality due to moisture absorption. Made as a material. The laminated film, a vapor-deposited polyester film as a base film, a stretched polypropylene film, a polyvinyl alcohol film,
It is made by laminating polyethylene films.

【0003】しかし、上記ラミネートフイルムの製造方
法は、延伸ポリプロピレンフイルムと蒸着ポリエステル
フイルムを接着のための接着工程と、蒸着ポリエステル
フイルムとポリエチレンフイルムを接着のためのドライ
ラミネート工程の2回の接着工程を必要とするため、製
造工程が複雑となるとともに、材料に無駄が多くでてし
まうという問題があることが分かっている。
[0003] However, the above-mentioned method of manufacturing a laminated film involves two bonding steps of a bonding step for bonding a stretched polypropylene film and a vapor-deposited polyester film and a dry laminating step for bonding a vapor-deposited polyester film and a polyethylene film. It is known that the necessity complicates the manufacturing process and causes waste of materials.

【0004】本出願人は、上記問題を解消するためのラ
ミネートフイルムの製造方法を開発した。このラミネー
トフイルムの製造方法は、2軸延伸のエチレンとビニル
アルコール共重合体のフイルム基材の一面に蒸着処理を
施してアルミニウム蒸着面を形成する工程と、上記フイ
ルム基材の他面に上記アルミニウム蒸着面に対応して耐
水ラッカを塗布して耐水面を形成する工程と、上記フイ
ルム基材のアルミニウム蒸着面に印刷処理をして印刷面
を形成する工程と、フイルム基材を水酸化ナトリウム水
溶液中に通してアルミニウム蒸着面の印刷面部分を除い
て溶解処理する工程と、フイルム基材の印刷面を設けた
面にドライラミネート手段により2軸延伸ポリプロピレ
ンフイルムを貼合わせる工程と、上記フイルム基材の耐
水面を設けた面に押し出しラミネート手段によりポリエ
チレンフイルムを積層する工程とから構成されている。
The present applicant has developed a method of manufacturing a laminated film to solve the above problem. The method for producing the laminated film includes a step of forming a vapor-deposited surface on one surface of a biaxially stretched ethylene-vinyl alcohol copolymer film substrate to form an aluminum vapor-deposited surface, and a step of forming the aluminum-deposited surface on the other surface of the film substrate. A step of forming a water-resistant surface by applying a water-resistant lacquer corresponding to the vapor-deposited surface; a step of printing the aluminum-deposited surface of the film substrate to form a printed surface; A step of dissolving and removing the printed surface portion of the aluminum vapor-deposited surface through the inside, a step of bonding a biaxially stretched polypropylene film to the surface of the film substrate provided with the printed surface by dry laminating means, And laminating a polyethylene film on the surface provided with the water-resistant surface by extrusion laminating means.

【0005】[0005]

【発明が解決しようとする課題】上記ラミネートフイル
ムの製造方法は、製造工程の簡略化を図ることと材料の
節減による価格の下げを可能とするが、フイルム基材の
耐水ラッカ塗布面側に押し出しラミネート工程によりポ
リエチレンフイルムを積層するため、ポリエチレンフイ
ルムのラミネート接着強度を強固に保つことが難しい。
The above-mentioned method for producing a laminated film allows the production process to be simplified and the price to be reduced by saving the material, but it is extruded to the water-resistant lacquer-coated side of the film substrate. Since the polyethylene film is laminated in the laminating step, it is difficult to keep the laminate adhesive strength of the polyethylene film strong.

【0006】本発明は上記した点に鑑みてなされたもの
で、耐水ラッカを塗布する工程を省略するとともに、押
し出しラミネート工程によりポリエチレンフイルムをラ
ミネートする際のラミネート接着強度を強固に保つこと
を可能とするラミネートフイルムの製造方法を提供する
ことを目的とする。
SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and it is possible to omit a step of applying a water-resistant lacquer and to maintain a strong laminating adhesive strength when laminating a polyethylene film by an extrusion laminating step. It is an object of the present invention to provide a method for manufacturing a laminated film.

【0007】[0007]

【課題を解決するための手段】本発明のラミネートフイ
ルムの製造方法は、2軸延伸のエチレンとビニルアルコ
ール共重合体でかつ配向結晶化を高めたフイルム基材を
蒸着処理してフイルム基材の一面全体にアルミニウム蒸
着面を形成し、このフイルム基材のアルミニウム蒸着面
に印刷処理してアルミニウム蒸着面の上に印刷部分を形
成し、フイルム基材を水酸化ナトリウム水溶液中に通し
てアルミニウム蒸着面の印刷部分を除く部分を溶解し、
フイルム基材の印刷部分を設けた側の面にドライラミネ
ート手段により2軸延伸ポリプロピレンフイルムをラミ
ネートするとともに、フイルム基材の他面に押し出しラ
ミネート手段によりポリエチレンフイルムをラミネート
することで構成される。
According to the present invention, there is provided a method for producing a laminated film, comprising the steps of: evaporating a biaxially stretched ethylene-vinyl alcohol copolymer film having a high degree of oriented crystallization; An aluminum-deposited surface is formed on the entire surface, a printing process is performed on the aluminum-deposited surface of the film substrate to form a printed portion on the aluminum-deposited surface, and the film substrate is passed through an aqueous sodium hydroxide solution to form an aluminum-deposited surface. Dissolve the part except the printed part of
The film is formed by laminating a biaxially stretched polypropylene film on the surface of the film substrate on the side where the printed portion is provided by dry laminating means, and laminating a polyethylene film on the other surface of the film substrate by extrusion laminating means.

【0008】[0008]

【作用】本発明のラミネートフイルムの製造方法では、
2軸延伸のエチレンとビニルアルコール共重合体でかつ
配向結晶化を高めたフイルム基材を用いることで、フイ
ルム基材に耐水ラッカを塗布する工程を省略しながらア
ルミニウム蒸着面の抜き加工時のフイルム基材への吸湿
量が減少し、ラミネート加工時に発生するたるみやカー
ルをなくし、かつフイルム基材の配向結晶化によるラミ
ネートフイルムの高湿度下でのバリヤ性能を高度に保つ
ことができる。
According to the method for producing a laminated film of the present invention,
By using a biaxially stretched ethylene-vinyl alcohol copolymer and a film substrate with enhanced orientation crystallization, the process of applying a water-resistant lacquer to the film substrate can be omitted, and the film at the time of punching the aluminum-deposited surface can be removed. The amount of moisture absorbed by the substrate is reduced, and sag and curl generated during laminating are eliminated, and the barrier performance of the laminated film under a high humidity due to the oriented crystallization of the film substrate can be kept high.

【0009】[0009]

【実施例】以下本発明の一実施例を図面につき説明す
る。
BRIEF DESCRIPTION OF THE DRAWINGS FIG.

【0010】図1は本発明によるラミネートフイルムの
製造方法の工程順を示すブロック図を示し、図2は本発
明のラミネートフイルムの製造方法により作られたラミ
ネートフイルムの断面を示す。
FIG. 1 is a block diagram showing the sequence of steps in a method for manufacturing a laminate film according to the present invention, and FIG. 2 is a cross-sectional view of the laminate film manufactured by the method for manufacturing a laminate film according to the present invention.

【0011】本発明によるラミネートフイルムの製造方
法は、出発材料として2軸延伸のエチレンとビニルアル
コール共重合体でかつ配向結晶化を高めたフイルム基材
1が選定される。このフイルム基材1は、吸水度が5.
8%以上(30℃で24時間)、加熱時寸法変化がMD
方向で−3.5以下、TD方向で−4.0以下(140
℃で1時間)となる特性値を有するように配向結晶化を
高めたものである。
In the method for producing a laminated film according to the present invention, a film substrate 1 which is a biaxially stretched ethylene-vinyl alcohol copolymer and has a high degree of oriented crystallization is selected as a starting material. This film substrate 1 has a water absorption of 5.
8% or more (24 hours at 30 ° C), dimensional change during heating is MD
-3.5 or less in the TD direction and -4.0 or less in the TD direction (140
(1 hour at 1 ° C.) in which the orientation crystallization is enhanced.

【0012】本発明によるラミネートフイルムの製造方
法では、フイルム基材1の一面にアルミニウム材料の蒸
着処理を施すことによりフイルム基材1の一面全体にア
ルミニウム蒸着面2を形成し、このフイルム基材1のア
ルミニウム蒸着面2に印刷処理を施すことによりアルミ
ニウム蒸着面2の上に印刷部分3を形成する。このアル
ミニウム蒸着面2は、印刷部分3と印刷部分3のない部
分2aとに区画される。 ついで、アルミニウム蒸着面
2に印刷部分3を設けたフイルム基材1を、水酸化ナト
リウムの水溶液を容れた液槽(図示せず)に通され、こ
の液槽に収容された水酸化ナトリウムの水溶液によりフ
イルム基材1のアルミニウム蒸着面2のうちの印刷が施
されなかった部分2aが溶かされ、アルミニウム蒸着面
のうちの印刷が施されなかった部分2aは透明となる。
In the method for manufacturing a laminated film according to the present invention, an aluminum material is vapor-deposited on one surface of a film substrate 1 to form an aluminum vapor-deposited surface 2 on the entire surface of the film substrate 1. The printed portion 3 is formed on the aluminum-deposited surface 2 by performing a printing process on the aluminum-deposited surface 2. The aluminum deposition surface 2 is divided into a printed portion 3 and a portion 2a without the printed portion 3. Next, the film substrate 1 provided with the printed portion 3 on the aluminum deposition surface 2 is passed through a liquid tank (not shown) containing an aqueous solution of sodium hydroxide, and the aqueous solution of sodium hydroxide contained in this liquid tank is passed through. As a result, the unprinted portion 2a of the aluminum deposition surface 2 of the film substrate 1 is melted, and the unprinted portion 2a of the aluminum deposition surface becomes transparent.

【0013】つぎに、フイルム基材1のアルミニウム蒸
着面2側の面にドライラミネート手段により2軸延伸ポ
リプロピレンフイルム4がラミネートされ、また、これ
に続いて、フイルム基材1の他面5に押し出しラミネー
ト手段によりポリエチレンフイルム6がラミネートされ
る。
Next, a biaxially stretched polypropylene film 4 is laminated on the surface of the film substrate 1 on the side of the aluminum deposition surface 2 by dry laminating means, and subsequently, extruded onto the other surface 5 of the film substrate 1. The polyethylene film 6 is laminated by laminating means.

【0014】このようにして作られたラミネートフイル
ムは、フイルム基材1として配向結晶化を高めた2軸延
伸のエチレンとビニルアルコール共重合体フイルムを用
いたことで、アルミニウム蒸着面2の抜き加工時のフイ
ルム基材1への吸湿量が減少し、ラミネート加工時にお
けるフイルム基材1の表裏、および局部的な吸湿バラン
スが崩れることがなく、高湿度下でのバリヤ性能も高度
に保つことができる。
The laminated film thus produced is formed by punching out the aluminum-deposited surface 2 by using a biaxially stretched ethylene-vinyl alcohol copolymer film having enhanced orientation and crystallization as the film substrate 1. The amount of moisture absorbed into the film substrate 1 during the process is reduced, the front and back of the film substrate 1 during lamination processing, and the local moisture absorption balance are not disrupted, and the barrier performance under high humidity can be maintained at a high level. it can.

【0015】[0015]

【発明の効果】以上述べたように本発明によれば、フイ
ルム基材に耐水ラッカを塗布する工程を省略しながら、
ラミネート加工時におけるフイルム基材の表裏、および
局部的な吸湿バランスを保ち、高湿度下でのバリヤ性能
も高度に保つことができる。
As described above, according to the present invention, the step of applying a water-resistant lacquer to a film substrate is omitted.
It is possible to maintain the balance of moisture absorption on the front and back of the film substrate during lamination and local moisture absorption, and to maintain high barrier performance under high humidity.

【図面の簡単な説明】[Brief description of the drawings]

【図1】本発明によるラミネートフイルムの製造方法の
工程順を示すブロック図。
FIG. 1 is a block diagram showing a process sequence of a method for manufacturing a laminated film according to the present invention.

【図2】本発明によるラミネートフイルムの製造方法に
より作られたラミネートフイルムの断面図。
FIG. 2 is a cross-sectional view of a laminate film produced by the method for producing a laminate film according to the present invention.

【符号の説明】[Explanation of symbols]

1 フイルム基材 2 アルミニウム蒸着面 3 印刷部分 4 2軸延伸ポリプロピレンフイルム 6 ポリエチレンフイルム DESCRIPTION OF SYMBOLS 1 Film base material 2 Aluminum vapor deposition surface 3 Printing part 4 Biaxially stretched polypropylene film 6 Polyethylene film

Claims (1)

(57)【特許請求の範囲】(57) [Claims] 【請求項1】2軸延伸のエチレンとビニルアルコール共
重合体でかつ配向結晶化を高めたフイルム基材を蒸着処
理してフイルム基材の一面全体にアルミニウム蒸着面を
形成し、このフイルム基材のアルミニウム蒸着面に印刷
処理してアルミニウム蒸着面の上に印刷部分を形成し、
フイルム基材を水酸化ナトリウム水溶液中に通してアル
ミニウム蒸着面の印刷部分を除く部分を溶解し、フイル
ム基材の印刷部分を設けた側の面にドライラミネート手
段により2軸延伸ポリプロピレンフイルムをラミネート
するとともに、フイルム基材の他面に押し出しラミネー
ト手段によりポリエチレンフイルムをラミネートするこ
とを特徴とするラミネートフイルムの製造方法。
1. A film base made of a biaxially stretched ethylene-vinyl alcohol copolymer and having an enhanced orientation and crystallization is subjected to a vapor deposition process to form an aluminum vapor-deposited surface on one entire surface of the film base. Print processing on the aluminum deposition surface of to form a printed part on the aluminum deposition surface,
The film substrate is passed through an aqueous solution of sodium hydroxide to dissolve the portion excluding the printed portion of the aluminum deposition surface, and a biaxially stretched polypropylene film is laminated on the surface of the film substrate on the side where the printed portion is provided by dry laminating means. A method of manufacturing a laminated film, comprising laminating a polyethylene film on the other surface of the film substrate by extrusion laminating means.
JP06249701A 1994-10-14 1994-10-14 Manufacturing method of laminated film Expired - Fee Related JP3120006B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP06249701A JP3120006B2 (en) 1994-10-14 1994-10-14 Manufacturing method of laminated film

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP06249701A JP3120006B2 (en) 1994-10-14 1994-10-14 Manufacturing method of laminated film

Publications (2)

Publication Number Publication Date
JPH08112881A JPH08112881A (en) 1996-05-07
JP3120006B2 true JP3120006B2 (en) 2000-12-25

Family

ID=17196923

Family Applications (1)

Application Number Title Priority Date Filing Date
JP06249701A Expired - Fee Related JP3120006B2 (en) 1994-10-14 1994-10-14 Manufacturing method of laminated film

Country Status (1)

Country Link
JP (1) JP3120006B2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006193196A (en) * 2005-01-17 2006-07-27 Toppan Printing Co Ltd Packaging material, and outer packaging bag for infusion solution bag using packaging material
CN102886936B (en) * 2011-07-18 2016-01-20 上海永超真空镀铝有限公司 A kind of BOPP aluminizer and preparation method thereof

Also Published As

Publication number Publication date
JPH08112881A (en) 1996-05-07

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