JP2002173598A - Oriented polyamide film - Google Patents
Oriented polyamide filmInfo
- Publication number
- JP2002173598A JP2002173598A JP2000316694A JP2000316694A JP2002173598A JP 2002173598 A JP2002173598 A JP 2002173598A JP 2000316694 A JP2000316694 A JP 2000316694A JP 2000316694 A JP2000316694 A JP 2000316694A JP 2002173598 A JP2002173598 A JP 2002173598A
- Authority
- JP
- Japan
- Prior art keywords
- polyamide film
- film
- stretched polyamide
- mass
- mmol
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Compositions Of Macromolecular Compounds (AREA)
- Bag Frames (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
- Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、フィルム製造工程
におけるモノマー、オリゴマーの発生が抑制され、シー
ラント等と積層して包装袋として使用したときの、ボイ
ル、レトルト処理後にも十分な接着性を保持することの
できる、食品などの自動充填包装適性に優れた延伸ポリ
アミドフィルムに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention suppresses the generation of monomers and oligomers in a film production process, and retains sufficient adhesiveness after boil and retort treatment when used as a packaging bag when laminated with a sealant or the like. The present invention relates to a stretched polyamide film which is excellent in suitability for automatic filling and packaging of food and the like.
【０００２】[0002]
【従来の技術】延伸ナイロン６フィルムに代表される延
伸ポリアミドフィルムは、引張強度、突き刺しピンホー
ル強度、耐衝撃強度などの機械的物性、及びガスバリア
性、耐熱性に優れていることから、ボイルやレトルト等
の殺菌処理用の包装材料をはじめとして、幅広い用途に
使用されている。しかし、延伸ポリアミドフィルムの製
造工程中、特に溶融製膜工程や延伸工程において、ポリ
アミド樹脂からモノマーやオリゴマーなどの低分子量成
分が発生しやすく、これが原因となって、操業性が低下
したり、装置の保守管理に費やす時間が長くなったり、
また、これらが原反製品に混入して印刷不良等のトラブ
ルを招くなど、工程上や品質上の問題点があった。2. Description of the Related Art A stretched polyamide film represented by a stretched nylon 6 film has excellent mechanical properties such as tensile strength, piercing pinhole strength and impact strength, gas barrier properties and heat resistance. It is used for a wide range of applications, including packaging materials for sterilization such as retorts. However, low molecular weight components such as monomers and oligomers are liable to be generated from the polyamide resin during the production process of the stretched polyamide film, particularly in the melt film formation process and the stretching process. The time spent on maintenance and management of
In addition, there are problems in the process and quality, such as the incorporation of these in the raw material product, which causes troubles such as poor printing.
【０００３】この対策として、末端基封鎖したポリアミ
ド樹脂（末端基封鎖ポリアミド樹脂）を原料として用い
ることにより、溶融時の熱分解を防止し、モノマー・オ
リゴマーの発生を抑制することが行なわれている。As a countermeasure, the use of a polyamide resin having a terminal group blocked (terminal group-blocked polyamide resin) as a raw material prevents thermal decomposition during melting and suppresses the generation of monomers and oligomers. .
【０００４】しかしながら、原料に末端基封鎖ポリアミ
ド樹脂を使用した延伸ポリアミドフィルムをポリオレフ
ィンフィルムなどのシーラントフィルムと積層し、これ
をボイル・レトルト用の包材に使用すると、層間でデラ
ミネーション（層間剥離）が発生する場合があるため、
積層化に用いる接着剤の種類を十分見極めないと使用で
きなかった。However, when a stretched polyamide film using a terminal-blocking polyamide resin as a raw material is laminated with a sealant film such as a polyolefin film and used as a packaging material for boiling and retorting, delamination (delamination) between layers occurs. May occur,
Unless the type of adhesive used for lamination was sufficiently determined, it could not be used.
【０００５】また、延伸ポリアミドフィルム積層体を、
こんにゃく等の食品の自動充填包装機に使用すると、充
填機のホマー（製袋ガイド板）とのスリップ性に劣るた
め、充填ピッチずれが発生して充填包装適性に欠けるも
のであった。この解決策として、フィルム積層体の表面
に滑剤を塗布する方法があるが、衛生上問題があり、延
伸ポリアミドフィルム積層体の自動充填包装適性には限
界があった。Further, the stretched polyamide film laminate is
When used in an automatic filling and packaging machine for foods such as konjac, slippage with a homer (bag-making guide plate) of the filling machine is inferior, so that a filling pitch shift occurs and the filling and packaging suitability is lacking. As a solution to this, there is a method of applying a lubricant to the surface of the film laminate, but there is a problem in terms of hygiene, and the suitability of the stretched polyamide film laminate for automatic filling and packaging is limited.
【０００６】[0006]
【発明が解決しようとする課題】本発明は上記問題点で
ある、生産工程でのモノマー、オリゴマーの発生を抑制
し、さらに、ボイル・レトルト処理後の耐水接着性と、
特に高湿下での自動充填包装機適性に優れた延伸ポリア
ミドフィルムを提供しようとするものである。DISCLOSURE OF THE INVENTION The present invention suppresses the production of monomers and oligomers in the production process, which is the above-mentioned problem, and furthermore, the water-resistant adhesiveness after boil retort treatment;
In particular, an object of the present invention is to provide a stretched polyamide film excellent in suitability for an automatic filling and packaging machine under high humidity.
【０００７】[0007]
【課題を解決するための手段】本発明者らは、鋭意検討
の結果、末端封鎖を施したポリアミドと特定量の脂肪族
アミド化合物とからなる延伸ポリアミドフィルムが上記
目的を満たすことを見出し、本発明に至った。すなわち
本発明は、モノカルボン酸、ジカルボン酸、ジアミンの
うち少なくとも１種の化合物でポリアミドの末端の一部
が封鎖されているポリアミド樹脂９９．９９〜９９．８
０質量％と、脂肪族アミド化合物０．０１〜０．２質量
％とからなる延伸ポリアミドフィルム、を要旨とするも
のである。Means for Solving the Problems As a result of intensive studies, the present inventors have found that a stretched polyamide film comprising a terminal-blocked polyamide and a specific amount of an aliphatic amide compound satisfies the above object. Invented the invention. That is, the present invention relates to a polyamide resin 99.99 to 99.8 in which a part of a terminal of a polyamide is blocked with at least one compound of a monocarboxylic acid, a dicarboxylic acid, and a diamine.
A stretched polyamide film comprising 0% by mass and 0.01 to 0.2% by mass of an aliphatic amide compound is a gist of the invention.
【０００８】[0008]
【発明の実施の形態】以下、本発明について詳細に説明
する。BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described in detail.
【０００９】本発明の延伸ポリアミドフィルムは、末端
基が、モノカルボン酸、ジカルボン酸、ジアミンのうち
少なくとも一つで封鎖されたポリアミド樹脂９９．９９
〜９９．８０質量％と、脂肪族アミド化合物０．０１〜
０．２質量％とからなる延伸ポリアミドフィルムであ
る。The stretched polyamide film of the present invention has a terminal group of 99.99, a polyamide resin having a terminal group blocked with at least one of a monocarboxylic acid, a dicarboxylic acid and a diamine.
~ 99.80% by mass, and an aliphatic amide compound 0.01 ~
It is a stretched polyamide film composed of 0.2% by mass.
【００１０】本発明に用いられるポリアミド樹脂として
は、ナイロン６、ナイロン６６、ナイロン１１、ナイロ
ン１２、ナイロン４６などの脂肪族ポリアミド及びこれ
らの混合物又は共重合体が挙げられる。中でもナイロン
６が好ましい。The polyamide resin used in the present invention includes aliphatic polyamides such as nylon 6, nylon 66, nylon 11, nylon 12, and nylon 46, and mixtures or copolymers thereof. Among them, nylon 6 is preferable.
【００１１】ポリアミド樹脂の末端を封鎖するためのモ
ノカルボン酸としては、酢酸、安息香酸、ジカルボン酸
としてはアジピン酸、テレフタル酸、ジアミンとして
は、エチレンジアミン、ヘキサメチレンジアミン、シク
ロヘキサンジアミン等が挙げられる。Examples of the monocarboxylic acid for blocking the terminal of the polyamide resin include acetic acid and benzoic acid, examples of the dicarboxylic acid include adipic acid and terephthalic acid, and examples of the diamine include ethylenediamine, hexamethylenediamine, and cyclohexanediamine.
【００１２】また、本発明においては、末端基として、
カルボキシル基が５〜７０ｍｍｏｌ／ｋｇで、アミノ基
が５〜７０ｍｍｏｌ／ｋｇであり、カルボキシル基／ア
ミノ基比が１．０１〜２．５とすることが好ましい。末
端カルボキシル基が５〜７０ｍｍｏｌ／ｋｇ、アミノ基
が５〜７０ｍｍｏｌ／ｋｇで、カルボキシル基／アミノ
基比が１．０１〜２．５の範囲を外れると、重合速度が
低下し、所定の重合度に到達するまでの時間が長くな
る。In the present invention, the terminal group is
It is preferable that the carboxyl group is 5 to 70 mmol / kg, the amino group is 5 to 70 mmol / kg, and the carboxyl group / amino group ratio is 1.01 to 2.5. When the terminal carboxyl group is 5 to 70 mmol / kg, the amino group is 5 to 70 mmol / kg, and the carboxyl group / amino group ratio is out of the range of 1.01 to 2.5, the polymerization rate is reduced and a predetermined degree of polymerization is achieved. The time to reach is longer.
【００１３】末端基封鎖したポリアミド樹脂に添加する
脂肪族アミド化合物としては、エチレンビスステアロイ
ルアミド、オレイン酸アミド、ステアリン酸アミド、ラ
ウリン酸アミド、エルシン酸アミドなどが挙げられが、
中でもエチレンビスステアロイルアミド（ＥＢＡ）が最
も好ましい。脂肪族アミド化合物の添加量は延伸ポリア
ミドフィルムの０．０１〜０．２０質量％とすることが
必要である。添加量が０．０１質量％未満、もしくは
０．２質量％を超えると、耐水接着性及び高湿下の自動
充填包装適性が不十分となる。また、添加量が１．５質
量％を超えた場合には、延伸ポリアミドフィルムとオレ
フィンフィルム等との積層体において、ラミ剥離しやす
くなる。Examples of the aliphatic amide compound to be added to the terminal-blocked polyamide resin include ethylene bis stearoyl amide, oleic amide, stearic amide, lauric amide, and erucic amide.
Among them, ethylene bis stearoylamide (EBA) is most preferable. The amount of the aliphatic amide compound to be added must be 0.01 to 0.20% by mass of the stretched polyamide film. When the addition amount is less than 0.01% by mass or exceeds 0.2% by mass, the water-resistant adhesiveness and the suitability for automatic filling and packaging under high humidity become insufficient. If the amount exceeds 1.5% by mass, lamination tends to occur easily in a laminate of a stretched polyamide film and an olefin film.
【００１４】脂肪族アミド化合物を末端基封鎖ポリアミ
ド樹脂に添加する方法は、マスターチップ法、液体注入
法などがあり、いずれの方法でも良い。A method for adding the aliphatic amide compound to the terminal-blocked polyamide resin includes a master chip method and a liquid injection method, and any method may be used.
【００１５】延伸ポリアミドフィルムには、無機又は有
機の微粒子を添加してもよい。具体的には、無機微粒子
として、シリカ、カオリン、タルク、ゼオライトなど、
有機微粒子として、メラミン樹脂、アクリル樹脂、フェ
ノール樹脂などの架橋高分子や超高分子量高分子などが
挙げられる。このとき添加量としては、０．０１〜０．
４質量％の範囲とすることが好ましい。The stretched polyamide film may contain inorganic or organic fine particles. Specifically, as inorganic fine particles, silica, kaolin, talc, zeolite, etc.
Examples of the organic fine particles include a crosslinked polymer such as a melamine resin, an acrylic resin, and a phenol resin, and an ultrahigh molecular weight polymer. At this time, the addition amount is 0.01 to 0.1.
It is preferable to set it in the range of 4% by mass.
【００１６】また、本発明の目的を損なわない範囲で、
延伸ポリアミドフィルムに酸化防止剤、帯電防止剤、柔
軟剤等の性能改良剤などを添加することができる。ま
た、機能性を付与するために、インラインコート延伸技
法を用いて、未延伸のポリアミドフィルムに帯電防止
剤、接着改良組成物等をコートした後、延伸することも
できる。[0016] Further, within a range not to impair the object of the present invention,
A performance improving agent such as an antioxidant, an antistatic agent, and a softener can be added to the stretched polyamide film. In order to impart functionality, an unstretched polyamide film may be coated with an antistatic agent, an adhesion improving composition, or the like by using an inline coat stretching technique, and then stretched.
【００１７】本発明の延伸ポリアミドフィルムは、上述
した原料を用いて通常公知の技術で製造出来る。例え
ば、ポリアミド樹脂チップと脂肪族アミド化合物を含む
マスターチップとをドライブレンドし、溶融押出機を用
いてＴダイから押出し、冷却ローラー上で固化して未延
伸フィルムとし、熱ローラー及びテンターによって縦及
び横方向に延伸した後、熱固定して巻き取られる。この
際に、原料として、無機粒子を含むマスターチップをブ
レンドして、フィルムのスリップ性を改良することもで
きる。以上のような逐次二軸延伸法や同時二軸延伸テン
ター法のほか、チューブラー法なども用いることが出来
る。The stretched polyamide film of the present invention can be produced by a generally known technique using the above-mentioned raw materials. For example, a polyamide resin chip and a master chip containing an aliphatic amide compound are dry-blended, extruded from a T-die using a melt extruder, and solidified on a cooling roller to form an unstretched film. After stretching in the transverse direction, it is heat-set and wound up. At this time, a master chip containing inorganic particles can be blended as a raw material to improve the slip property of the film. In addition to the sequential biaxial stretching method and the simultaneous biaxial stretching tenter method as described above, a tubular method and the like can be used.
【００１８】[0018]
【実施例】以下、実施例により本発明を具体的に説明す
る。The present invention will be described below in detail with reference to examples.
【００１９】（１）末端アミノ基の測定 樹脂を溶媒（フェノール／エタノール＝４／１容積比）
に溶解し、０．０２Ｎの塩酸を一定量加えたのち、０．
０２Ｎ水酸化ナトリウム水溶液で逆滴定した。(1) Measurement of Terminal Amino Group Resin was used as a solvent (phenol / ethanol = 4/1 volume ratio)
, And a certain amount of 0.02N hydrochloric acid was added thereto.
Back titration was performed with a 02N aqueous sodium hydroxide solution.
【００２０】（２）末端カルボキシル基の測定 樹脂を１８０℃のベンジルアルコールに溶解し、指示薬
を加えて０．０２Ｎの水酸化カリウムのエタノール溶液
で滴定した。(2) Measurement of Terminal Carboxyl Group The resin was dissolved in benzyl alcohol at 180 ° C., an indicator was added, and the solution was titrated with a 0.02N ethanol solution of potassium hydroxide.
【００２１】（３）オイラー摩擦係数 ５０ｍｍ巾のフィルムを２０℃、６５％ＲＨで１時間調
湿した後、鏡面に仕上げた３０ｍｍφの鋼棒に１４０度
の抱き角になるように接触させ、一端に９．８Nの荷重
を掛け、他端を島津製作所製オートグラフを用いて５０
０ｍｍ／分の速度で引張った。この際に発生する張力を
用いて、次式よりオイラー摩擦係数を計算した。 μ＝ｌｎ（Ｔ／Ｔo）／θ μ ：オイラー摩擦係数 Ｔ ：フィルムに発生する張力（Ｎ） Ｔo：フィルムに掛ける荷重（Ｎ）、Ｔo＝９．８Ｎ θ ：フィルム抱き角度、θ＝１４０／３６０×２π＝
２．４４ラジアン(3) Euler friction coefficient A film having a width of 50 mm was conditioned at 20 ° C. and 65% RH for 1 hour, and then brought into contact with a mirror-finished steel rod of 30 mmφ at an angle of 140 ° and one end thereof. Is applied with a load of 9.8N, and the other end is applied to an autograph manufactured by Shimadzu Corporation.
It was pulled at a speed of 0 mm / min. The Euler friction coefficient was calculated from the following equation using the tension generated at this time. μ = ln (T / To) / θ μ: Euler friction coefficient T: tension generated in the film (N) To: load applied to the film (N), To = 9.8N θ: film holding angle, θ = 140 / 360 × 2π =
2.44 radians
【００２２】（４）ウエット剥離強度（耐水接着性） 延伸ポリアミドフィルムに、ポリウレタン系接着剤を用
いてポリプロピレンフィルム（東レ合成社製トレファ
ン、厚さ６０μｍ）をドライラミネートした。このラミ
ネートフィルムから巾１５ｍｍの試験片を採取し、２０
℃、６５％ＲＨ雰囲気中、引張試験機（島津製作所社製
ＡＧＳ−１００Ｂ型）を用いて、Ｔピール法により引張
速度３００ｍｍ／分で剥離強度を測定した。この際、試
験片の端部からフィルム界面を剥離する際に、剥離界面
に水を付着させた。測定はレトルト処理（１２０℃、
１．２気圧で３０分間）前後で行った。(4) Wet Peel Strength (Water Resistance) A stretched polyamide film was dry-laminated with a polypropylene film (Trefane, 60 μm thick, manufactured by Toray Gosei Co., Ltd.) using a polyurethane adhesive. A test piece having a width of 15 mm was collected from the laminated film,
Peel strength was measured at a tensile speed of 300 mm / min by a T-peel method using a tensile tester (AGS-100B manufactured by Shimadzu Corporation) in an atmosphere of 65 ° C. and 65% RH. At this time, water was allowed to adhere to the peeling interface when the film interface was peeled from the end of the test piece. Measurements were retorted (120 ° C,
(At 1.2 atmospheres for 30 minutes).
【００２３】（５）白粉発生量 生産工程において、製膜、延伸出口でモノマー、オリゴ
マーによる白粉が機器に付着する程度を評価した。 ○：著しく少ない △：やや発生 ×：著しく多い(5) Amount of White Powder Generated In the production process, the degree to which the white powder of the monomer or oligomer adheres to the equipment at the film forming and stretching outlets was evaluated. ：: remarkably small △: slightly generated ×: remarkably large
【００２４】（６）自動充填包装適性 延伸ポリアミドフィルムとポリエチレンフィルム（東セ
ロ社製ＬＬＤＰＥ ＴＵＸ ６０μｍ）をポリウレタン
系接着剤でドライラミネートした。この積層フィルム
を、２００ｇ糸こんにゃく自動充填包装機（オリヒロ社
製 ＯＮＰＡＣＫＫ−２０２Ｅ）に掛けて包装速度２５
袋／分で充填包装を行い、この時の状態を次の３段階で
評価した。 ○：スムーズに流れ、なんら問題ない。 △：時々人による流れの修正を必要とする。 ×：充填包装機のホマー（製袋ガイド板）とのスリップ
性が劣るため、充填ピッチずれが発生し、充填ができな
い。(6) Suitability for automatic filling and packaging A stretched polyamide film and a polyethylene film (LLDPE TUX 60 μm, manufactured by Tosero Corporation) were dry-laminated with a polyurethane adhesive. This laminated film is applied to a 200 g yarn konjac automatic filling and packaging machine (ONPACKK-202E, manufactured by ORIHIRO CORPORATION), and the packaging speed is 25.
Filling and packaging were performed at bags / minute, and the state at this time was evaluated on the following three levels. ：: Smooth flow, no problem. Δ: Occasionally a flow correction by a person is required. ×: Poor slippage with the homer (bag-making guide plate) of the filling and packaging machine, resulting in displacement of the filling pitch and incapability of filling.
【００２５】実施例１ ε−カプロラクタム１００質量部、安息香酸０．１２質
量部（ε−カプロラクタムに対して１０ｍｍｏｌ／ｋ
ｇ）、及び水3質量部を重合釜に投入して昇温し、制圧
力０．５ＭＰａ、温度２６０℃で重縮合反応を行い、重
合釜から払い出した後、カッティングし、これを精練、
乾燥して末端基封鎖ナイロン６チップを得た。このチッ
プの末端カルボキシル基は４６ｍｍｏｌ／ｋｇ、末端ア
ミノ基は３６ｍｍｏｌ／ｋｇ、相対粘度は３．０３（２
５℃、９６％濃硫酸中、１．０ｇ／ｄｌ）であった。 上記の末端基封鎖ナイロン６チップ１００質量部に対し
て、スーパーミキサーでＥＢＡを１．５質量部ブレンド
してマスターチップを作成した。（マスターチップＡ） さらに、末端基封鎖ナイロン６チップ１００質量部あた
り無機微粒子（サイロイドＳＹ−１５０：水澤化学工業
(株)）を６質量部溶融混練してマスターチップを作成し
た。（マスターチップＢ） 末端基封鎖ナイロン６にマスターチップＡ及びＢをブレ
ンドし、ＥＢＡ添加量が０．０６質量％、無機微粒子添
加量が０．０５質量％になるようにして押出機のホッパ
ーに投入し、２６０℃でＴダイから溶融押出した後、エ
アーナイフキャスト法により表面温度２５℃の回転ドラ
ムに密着させて急冷し、厚さ１５０μｍの未延伸フィル
ムを得た。次いで、この未延伸フィルムを５５℃で２．
８倍に縦延伸し、９０℃で３．７倍に横延伸した後、２
１０℃で１０秒間熱処理し、厚さ１５μｍの二軸延伸ポ
リアミドフィルムを得た。得られたフィルムの性能を表
１に示す。Example 1 100 parts by mass of ε-caprolactam, 0.12 parts by mass of benzoic acid (10 mmol / k based on ε-caprolactam)
g), and 3 parts by weight of water were charged into a polymerization vessel, the temperature was raised, a polycondensation reaction was performed at a control pressure of 0.5 MPa and a temperature of 260 ° C., and after discharging from the polymerization vessel, cutting was performed, and this was scoured.
After drying, a nylon 6 chip having an end group blocked was obtained. The terminal carboxyl group of this chip was 46 mmol / kg, the terminal amino group was 36 mmol / kg, and the relative viscosity was 3.03 (2
1.0 g / dl in 5% C, 96% concentrated sulfuric acid). A master chip was prepared by blending 1.5 parts by mass of EBA with a supermixer with respect to 100 parts by mass of the above-mentioned terminal-blocked nylon 6 chip. (Master chip A) Further, inorganic fine particles (Syloid SY-150: Mizusawa Chemical Industry)
Was melt-kneaded to prepare a master chip. (Master chip B) The master chips A and B were blended with the end-blocked nylon 6 so that the amount of EBA added was 0.06% by mass and the amount of inorganic fine particles was 0.05% by mass. It was charged and melt-extruded from a T-die at 260 ° C., and was closely adhered to a rotating drum having a surface temperature of 25 ° C. by an air knife casting method and rapidly cooled to obtain an unstretched film having a thickness of 150 μm. Then, the unstretched film was heated at 55 ° C. for 2.
After stretching longitudinally 8 times and stretching transversely 3.7 times at 90 ° C,
Heat treatment was performed at 10 ° C. for 10 seconds to obtain a biaxially stretched polyamide film having a thickness of 15 μm. Table 1 shows the performance of the obtained film.
【００２６】実施例２ 実施例１において、安息香酸の代わりに酢酸を１４ｍｍ
ｏｌ／ｋｇ（ε−カプロラクタムに対して）添加した以
外は、実施例１と同様の操作を行って二軸延伸ポリアミ
ドフィルムを得た。Example 2 In Example 1, acetic acid was replaced by 14 mm in place of benzoic acid.
ol / kg (relative to ε-caprolactam), but the same operation as in Example 1 was performed to obtain a biaxially stretched polyamide film.
【００２７】実施例３ 実施例１において、フィルムに含まれるＥＢＡ量を０．
２質量％とした以外は実施例１と同様の操作を行って、
二軸延伸ポリアミドフィルムを得た。Example 3 In Example 1, the amount of EBA contained in the film was set to 0.
The same operation as in Example 1 was performed except that the amount was 2% by mass,
A biaxially stretched polyamide film was obtained.
【００２８】実施例４ 実施例１において、フィルムに含まれるＥＢＡ量を０．
０１質量％とした以外は実施例１と同様の操作を行っ
て、二軸延伸ポリアミドフィルムを得た。Example 4 In Example 1, the amount of EBA contained in the film was set to 0.
A biaxially stretched polyamide film was obtained in the same manner as in Example 1, except that the content was changed to 01% by mass.
【００２９】比較例１ 実施例１において、ＥＢＡを添加する一連の操作を行わ
なかった以外は実施例１と同様にして二軸延伸ポリアミ
ドフィルムを得た。Comparative Example 1 A biaxially stretched polyamide film was obtained in the same manner as in Example 1 except that the series of operations for adding EBA was not performed.
【００３０】比較例２ 実施例１において、重合時に安息香酸を入れず、またＥ
ＢＡを添加する一連の操作を行わなかった以外は実施例
１と同様にして二軸延伸ポリアミドフィルムを得た。Comparative Example 2 In Example 1, no benzoic acid was added during the polymerization,
A biaxially stretched polyamide film was obtained in the same manner as in Example 1, except that a series of operations for adding BA was not performed.
【００３１】比較例３ 実施例１において、安息香酸の代わりに酢酸を１４ｍｍ
ｏｌ／ｋｇ（対ε−カプロラクタム）添加し、ＥＢＡを
添加する一連の操作を行わなかった以外は、実施例１と
同様の操作を行って二軸延伸ポリアミドフィルムを得
た。Comparative Example 3 In Example 1, acetic acid was used instead of benzoic acid in an amount of 14 mm.
ol / kg (vs. ε-caprolactam) was added, and a biaxially stretched polyamide film was obtained in the same manner as in Example 1 except that a series of operations for adding EBA was not performed.
【００３２】比較例４ 実施例１において、フィルムに含まれるＥＢＡ量を０．
２５質量％とした以外は実施例１と同様の操作を行っ
て、二軸延伸ポリアミドフィルムを得た。Comparative Example 4 In Example 1, the amount of EBA contained in the film was set at 0.
A biaxially stretched polyamide film was obtained by performing the same operation as in Example 1 except that the amount was 25% by mass.
【００３３】[0033]
【表１】 [Table 1]
【００３４】[0034]
【効果】本発明によれば、フィルム製造工程におけるモ
ノマー、オリゴマーの発生を抑制され、レトルト処理後
でも十分なウエット剥離強度を有する、食品などの自動
充填包装適性に優れた延伸ポリアミドフィルムが提供さ
れる。According to the present invention, there is provided a stretched polyamide film which suppresses generation of monomers and oligomers in a film production process, has sufficient wet peel strength even after retort treatment, and is excellent in suitability for automatic filling and packaging of foods and the like. You.
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ テーマコート゛(参考） Ｂ２９Ｋ 77:00 Ｂ２９Ｋ 77:00 Ｂ２９Ｌ 7:00 Ｂ２９Ｌ 7:00 Ｆターム(参考） 3E064 BA36 BC02 BC18 FA03 4F071 AA54 AC12 AF28 AF28Y AH04 BB07 BB08 BC01 4F210 AA29 AB07 AB19 AE08 AG01 QC06 QG01 QG18 4J002 CL011 CL031 EP016 EP026 GG02 ──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. 7 Identification symbol FI Theme coat ゛ (Reference) B29K 77:00 B29K 77:00 B29L 7:00 B29L 7:00 F term (Reference) 3E064 BA36 BC02 BC18 FA03 4F071 AA54 AC12 AF28 AF28Y AH04 BB07 BB08 BC01 4F210 AA29 AB07 AB19 AE08 AG01 QC06 QG01 QG18 4J002 CL011 CL031 EP016 EP026 GG02
Claims (5)
ンのうち少なくとも１種の化合物によりポリアミド鎖の
末端の一部が封鎖されたポリアミド樹脂９９．９９〜９
９．８０質量％と脂肪族アミド化合物０．０１〜０．２
質量％とからなる延伸ポリアミドフィルム。1. A polyamide resin 99.99-9 in which a part of the end of a polyamide chain is blocked by at least one compound of a monocarboxylic acid, a dicarboxylic acid, and a diamine.
9.80% by mass and 0.01 to 0.2 of the aliphatic amide compound
% Of a stretched polyamide film.
（１）〜（３）の関係を満たす請求項１記載の延伸ポリ
アミドフィルム。 ５ｍｍｏｌ／ｋｇ≦［カルボキシル基］≦７０ｍｍｏｌ／ｋｇ （１） ５ｍｍｏｌ／ｋｇ≦ ［アミノ基］ ≦７０ｍｍｏｌ／ｋｇ （２） １．０１≦［カルボキシル基］／［アミノ基］≦２．５ （３）2. The stretched polyamide film according to claim 1, wherein the terminal group concentration of the polyamide resin satisfies the following formulas (1) to (3). 5 mmol / kg ≦ [carboxyl group] ≦ 70 mmol / kg (1) 5 mmol / kg ≦ [amino group] ≦ 70 mmol / kg (2) 1.01 ≦ [carboxyl group] / [amino group] ≦ 2.5 (3)
アロイルアミドである請求項１又は２記載の延伸ポリア
ミドフィルム。3. The stretched polyamide film according to claim 1, wherein the aliphatic amide compound is ethylene bisstearoylamide.
５である請求項１〜３記載の延伸ポリアミドフィルム。4. An oiler having a coefficient of friction of 0.17 to 0.4.
5. The stretched polyamide film according to claim 1.
ルムとヒートシール層とからなる積層フィルムであっ
て、レトルト処理後のウエット剥離強度が１．０Ｎ／ｃ
ｍ以上である積層フィルム。5. A laminated film comprising the stretched polyamide film according to claim 1 and a heat seal layer, wherein the wet peel strength after retort treatment is 1.0 N / c.
m or more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000316694A JP2002173598A (en) | 2000-09-29 | 2000-10-17 | Oriented polyamide film |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000-299218 | 2000-09-29 | ||
| JP2000299218 | 2000-09-29 | ||
| JP2000316694A JP2002173598A (en) | 2000-09-29 | 2000-10-17 | Oriented polyamide film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2002173598A true JP2002173598A (en) | 2002-06-21 |
Family
ID=26601137
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000316694A Pending JP2002173598A (en) | 2000-09-29 | 2000-10-17 | Oriented polyamide film |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2002173598A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPWO2004050363A1 (en) * | 2002-12-02 | 2006-03-30 | ダイセル・デグサ株式会社 | Composite molded body and method for producing the same |
| JP2009241321A (en) * | 2008-03-31 | 2009-10-22 | Unitika Ltd | Biaxially oriented polyamide resin film with gas barrier property |
| JPWO2021149815A1 (en) * | 2020-01-24 | 2021-07-29 |
-
2000
- 2000-10-17 JP JP2000316694A patent/JP2002173598A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPWO2004050363A1 (en) * | 2002-12-02 | 2006-03-30 | ダイセル・デグサ株式会社 | Composite molded body and method for producing the same |
| JP2010173325A (en) * | 2002-12-02 | 2010-08-12 | Daicel-Evonik Ltd | Composite molded object and manufacturing method for the same |
| JP2009241321A (en) * | 2008-03-31 | 2009-10-22 | Unitika Ltd | Biaxially oriented polyamide resin film with gas barrier property |
| JPWO2021149815A1 (en) * | 2020-01-24 | 2021-07-29 | ||
| CN115003735A (en) * | 2020-01-24 | 2022-09-02 | 尤尼吉可股份有限公司 | Method for producing polyamide resin film |
| JP7137808B2 (en) | 2020-01-24 | 2022-09-15 | ユニチカ株式会社 | Method for producing polyamide resin film |
| US12012491B2 (en) | 2020-01-24 | 2024-06-18 | Unitika Ltd. | Method for producing polyamide resin film |
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